Cheap flights from Dulles Intl (IAD) to the United Kingdom from $231

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/1. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
IAD — LHR
jun. 10 — jun. 171

How far in advance should I book a flight from Washington, D.C. Dulles Intl Airport to United Kingdom?

Travelers have found it’s best to book a flight 24 days in advance to save up to 17% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 24 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Washington, D.C. Dulles Intl Airport to United Kingdom 1-2 weeks in advance for as low as $767, or $807 for flights within the next 24 hours.

What is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to United Kingdom?

Due to multiple factors, expect to potentially pay more when booking in June. For low rates, October can be a great choice for travel to United Kingdom. Flights to United Kingdom from Washington, D.C. Dulles Intl Airport in October are about $719 on average during October, but can be found for as low as $354.

What is the cheapest time of day to fly from IAD to GB?

When flying from Washington, D.C. Dulles Intl Airport to United Kingdom, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Cheap Dulles Intl to United Kingdom flights in June & July 2024

Find cheap flight options from Dulles Intl to United Kingdom specifically for the months of June and July 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,050,429 searches. Prices were last updated on junio 5, 2024.
These are some of the most attractive deals on flights from Washington, D.C. to United Kingdom in 2024. Check back in a little while for more flight options.
sáb. 7/136:50 pmIAD - STN
1 stop10h 50mPLAY
sáb. 9/1411:40 amSTN - IAD
1 stop11h 00mPLAY
Deal found 6/5$440
sáb. 7/136:50 pmIAD - STN
1 stop10h 50mPLAY
vie. 9/1311:40 amSTN - IAD
1 stop11h 00mPLAY
Deal found 6/5$451
mié. 7/106:50 pmIAD - STN
1 stop10h 50mPLAY
sáb. 9/1411:40 amSTN - IAD
1 stop11h 00mPLAY
Deal found 6/5$455
mié. 7/106:50 pmIAD - STN
1 stop10h 50mPLAY
dom. 9/111:40 amSTN - IAD
1 stop11h 00mPLAY
Deal found 6/4$456
mié. 7/106:50 pmIAD - STN
1 stop10h 50mPLAY
vie. 9/1311:40 amSTN - IAD
1 stop11h 00mPLAY
Deal found 6/5$460
dom. 7/146:50 pmIAD - STN
1 stop10h 50mPLAY
lun. 9/911:40 amSTN - IAD
1 stop11h 00mPLAY
Deal found 6/5$466
dom. 7/146:50 pmIAD - STN
1 stop10h 50mPLAY
mar. 9/1011:40 amSTN - IAD
1 stop11h 00mPLAY
Deal found 6/5$467
sáb. 7/206:50 pmIAD - STN
1 stop10h 50mPLAY
lun. 9/911:40 amSTN - IAD
1 stop11h 00mPLAY
Deal found 6/3$468
jue. 7/116:50 pmIAD - STN
1 stop10h 50mPLAY
sáb. 9/1411:40 amSTN - IAD
1 stop11h 00mPLAY
Deal found 6/5$470

Dulles Intl to United Kingdom 2024 flight deals

Discover exclusive flight deals for travel between Dulles Intl and United Kingdom in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,050,429 searches. Data last updated junio 5, 2024.
These are some of the most attractive deals on flights from Washington, D.C. to United Kingdom in 2024. Check back in a little while for more flight options.
mar. 8/2010:45 pmIAD - LHR
Nonstop7h 20mBritish Airways
vie. 8/305:25 pmLHR - IAD
Nonstop8h 05mBritish Airways
Deal found 6/5$276
mar. 8/201:17 pmIAD - LHR
1 stop13h 13mBritish Airways
vie. 8/305:25 pmLHR - IAD
Nonstop8h 05mBritish Airways
Deal found 6/5$281
mar. 9/108:40 pmIAD - LHR
1 stop17h 40mBritish Airways
mié. 9/255:25 pmLHR - IAD
Nonstop8h 05mBritish Airways
Deal found 6/4$289
mar. 10/85:35 pmIAD - LHR
1 stop15h 45mAustrian Airlines
sáb. 10/197:30 pmLHR - IAD
1 stop24h 05mAustrian Airlines
Deal found 6/4$310
mié. 11/2010:00 pmIAD - LHR
Nonstop7h 05mBritish Airways
dom. 12/14:30 pmLHR - IAD
Nonstop8h 30mBritish Airways
Deal found 6/3$376
lun. 9/96:50 pmIAD - STN
1 stop10h 50mPLAY
sáb. 9/1411:40 amSTN - IAD
1 stop11h 00mPLAY
Deal found 6/5$406
dom. 9/226:50 pmIAD - STN
1 stop10h 50mPLAY
mar. 10/111:40 amSTN - IAD
1 stop11h 00mPLAY
Deal found 6/4$407
sáb. 11/166:05 pmIAD - STN
1 stop10h 50mPLAY
mié. 12/1110:55 amSTN - IAD
1 stop11h 00mPLAY
Deal found 6/4$408
vie. 9/66:50 pmIAD - STN
1 stop10h 50mPLAY
sáb. 9/1411:40 amSTN - IAD
1 stop11h 00mPLAY
Deal found 6/5$409

Dulles Intl to United Kingdom flights leaving soon

Find last-minute flight options from Dulles Intl to United Kingdom for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 3,050,429 searches. Data last updated junio 5, 2024.
Check out these flights departing soon from Washington, D.C. to United Kingdom. It's wise to confirm all flight details are correct before booking.
lun. 6/108:30 pmIAD - LHR
1 stop10h 25mIcelandair
lun. 9/309:25 pmLHR - IAD
1 stop26h 50mIcelandair
Deal found 6/4$695
mar. 6/114:30 pmIAD - LGW
1 stop13h 45mITA Airways
mar. 6/1812:05 pmLGW - IAD
1 stop31h 35mITA Airways
Deal found 6/5$711
mar. 6/114:30 pmIAD - LGW
1 stop13h 45mITA Airways
mar. 6/2512:05 pmLGW - IAD
1 stop31h 35mITA Airways
Deal found 6/5$712
lun. 6/104:30 pmIAD - LGW
1 stop13h 45mITA Airways
lun. 6/1712:10 pmLGW - IAD
1 stop31h 30mITA Airways
Deal found 6/4$714
mar. 6/115:43 pmIAD - MAN
2 stops22h 52mBritish Airways
mar. 6/187:00 amMAN - IAD
1 stop13h 40mBritish Airways
Deal found 6/4$716
lun. 6/104:30 pmIAD - LGW
1 stop13h 45mITA Airways
lun. 6/2412:10 pmLGW - IAD
1 stop31h 30mITA Airways
Deal found 6/4$723
lun. 6/105:03 pmIAD - LGW
2 stops37h 12mITA Airways
mar. 6/1812:05 pmLGW - IAD
1 stop31h 35mITA Airways
Deal found 6/4$730
lun. 6/104:30 pmIAD - LGW
1 stop13h 45mITA Airways
dom. 6/1612:05 pmLGW - IAD
1 stop31h 35mITA Airways
Deal found 6/4$731
lun. 6/104:30 pmIAD - LGW
1 stop13h 45mITA Airways
dom. 6/2312:05 pmLGW - IAD
1 stop31h 35mITA Airways
Deal found 6/4$736

One-way flights to United Kingdom from Dulles Intl

Search for one-way flight options from Dulles Intl to United Kingdom. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 3,050,429 searches. Data last updated junio 5, 2024.
Users traveling one-way from Washington, D.C. to United Kingdom can select one of these great deals. Users can also find round-trip Washington, D.C. to United Kingdom flights by using the search form above.
mar. 10/18:30 pmIAD - MAN
1 stop10h 10mIcelandair
Deal found 6/4$231
lun. 9/168:30 pmIAD - MAN
1 stop10h 10mIcelandair
Deal found 6/4$234
lun. 7/1511:15 pmIAD - MAN
1 stop31h 25mIcelandair
Deal found 6/5$235
mar. 8/138:30 pmIAD - MAN
1 stop10h 10mIcelandair
Deal found 6/4$236
lun. 8/58:30 pmIAD - MAN
1 stop10h 10mIcelandair
Deal found 6/5$237
mié. 8/711:15 pmIAD - MAN
1 stop31h 25mIcelandair
Deal found 6/4$238
mar. 7/168:30 pmIAD - MAN
1 stop10h 10mIcelandair
Deal found 6/4$249
lun. 7/1511:15 pmIAD - MAN
1 stop31h 25mIcelandair
Deal found 6/4$256
dom. 9/86:50 pmIAD - LTN
1 stop12h 50mMultiple Airlines
Deal found 6/4$277

Find flights from Dulles Intl to United Kingdom within your budget

Customize your flight search to find flights from Dulles Intl to United Kingdom that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 3,050,429 searches. Data last updated junio 5, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$276 - $504

Route

Depart

Return

Price

Washington, D.C. Dulles IntlLondon Heathrow

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

mar. 8/20

Nonstop7h 20m

London Heathrow

vie. 8/30

Nonstop8h 05m

$276

Washington, D.C. Dulles IntlLondon Heathrow

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

mar. 10/8

1 stop15h 45m

London Heathrow

sáb. 10/19

1 stop24h 05m

$310

Washington, D.C. Dulles IntlLondon Stansted

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

lun. 9/9

1 stop10h 50m

London Stansted

sáb. 9/14

1 stop11h 00m

$406

Washington, D.C. Dulles IntlLondon Heathrow

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

mar. 10/22

1 stop17h 45m

London Heathrow

jue. 10/31

1 stop26h 00m

$452

Washington, D.C. Dulles IntlInverness

IAD - INV

IADINV

Washington, D.C. Dulles Intl

mié. 11/20

1 stop31h 00m

Inverness

mar. 11/26

1 stop32h 15m

$467

Washington, D.C. Dulles IntlLondon Heathrow

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

vie. 11/15

1 stop31h 55m

London Heathrow

mar. 11/19

1 stop12h 40m

$472

Washington, D.C. Dulles IntlLondon Gatwick

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

mar. 9/10

1 stop13h 25m

London Gatwick

sáb. 9/14

1 stop16h 05m

$490

Washington, D.C. Dulles IntlLondon Heathrow

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

mié. 8/28

1 stop11h 15m

London Heathrow

dom. 9/1

1 stop12h 35m

$494

Washington, D.C. Dulles IntlLondon Heathrow

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

mié. 9/4

1 stop12h 25m

London Heathrow

mié. 9/11

1 stop11h 35m

$504

Flights are sorted by cheapest first

Deals found on 6/5

No data available for this route at this time. Please check back soon.

Best time to book a flight from Dulles Intl to United Kingdom

Have a flexible travel schedule? Discover the best time to fly to United Kingdom from Dulles Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Reviews of airlines servicing United Kingdom

Get insights into the airlines that provide service to United Kingdom. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to United Kingdom. Reviews last updated junio 5, 2024.
See what other customers who have flown with British Airways, Scandinavian Airlines and TAP AIR PORTUGAL from Washington, D.C. to United Kingdom have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very good
10,368 reviews

Comfort

7.9

Crew

8.6

Entertainment

8.0

Food

7.4

Boarding

8.2

Overall

8.0

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

8.0
Very good
10,368 reviews
8.0
Very good
10,368 reviews

Comfort

7.9

Crew

8.6

Entertainment

8.0

Food

7.4

Boarding

8.2

Overall

8.0

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

7.9
Good
1,493 reviews
8.0
Very good
10,368 reviews

Comfort

7.9

Crew

8.6

Entertainment

8.0

Food

7.4

Boarding

8.2

Overall

8.0

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

7.8
Good
1,934 reviews
8.0
Very good
10,368 reviews

Comfort

7.9

Crew

8.6

Entertainment

8.0

Food

7.4

Boarding

8.2

Overall

8.0

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

7.8
Good
1,363 reviews
8.0
Very good
10,368 reviews

Comfort

7.9

Crew

8.6

Entertainment

8.0

Food

7.4

Boarding

8.2

Overall

8.0

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

7.7
Good
1,010 reviews
8.0
Very good
10,368 reviews

Comfort

7.9

Crew

8.6

Entertainment

8.0

Food

7.4

Boarding

8.2

Overall

8.0

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to United Kingdom. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • Can I find flights from Washington, D.C. Dulles Intl Airport to United Kingdom for under $300 on Cheapflights?

    Yes, there are multiple flights from Washington, D.C. Dulles Intl Airport to United Kingdom for under $300. The cheapest flight booked recently is on British Airways for just $276, but on average you can expect to pay $386.

  • Are there nonstop flights from Washington, D.C. Dulles Intl Airport to United Kingdom for under $400 on Cheapflights?

    Cheapflights has at least 20 direct flights from Washington, D.C. Dulles Intl Airport to United Kingdom under $400. A good price for a nonstop flight from Washington, D.C. Dulles Intl Airport to United Kingdom is less than $546.

  • Are there last-minute flights available from Washington, D.C. Dulles Intl Airport to United Kingdom for under $700?

    There are currently 20+ open flights from Washington, D.C. Dulles Intl Airport to United Kingdom within the next 7 days for less than $700.

  • What are the most popular routes from Washington, D.C. Dulles Intl Airport to United Kingdom?

  • What are the most reliable airlines from Washington, D.C. Dulles Intl Airport to United Kingdom?

    Before booking your flight to United Kingdom from Washington, D.C. Dulles Intl Airport, check out the most reliable airlines to get you to your destination on time: American Airlines (66%), Aer Lingus (66%), Finnair( 66%).

  • What are the cheapest flights from Washington, D.C. Dulles Intl Airport to United Kingdom?

    The cheapest flight price from Washington, D.C. Dulles Intl Airport to United Kingdom is $458. On average you can expect to pay $2,261. The most popular route, (Washington, D.C. Dulles Intl - London Heathrow), can usually be booked for $289.

  • What does IAD to LHR mean?

    IAD and LHR are unique codes to identify airports used in the aviation industry. They are defined by IATA (International Air Transport Association) and are commonly called IATA codes. IAD to LHR refers to a flight route from Washington, D.C. Dulles Intl Airport to London Heathrow Airport. Manchester Airport (MAN), Edinburgh Turnhouse Airport (EDI), London Gatwick Airport (LGW), Birmingham Airport (BHX), Glasgow Intl Airport (GLA) are some additional IATA codes for airports related to your trip.

  • Can I find deals for flights from Dulles Intl to United Kingdom that include extra baggage allowance?

    The amount of baggage you can bring on your Dulles Intl to United Kingdom flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Dulles Intl to United Kingdom with specific airlines?

    Yes, Cheapflights allows you to browse and filter Dulles Intl to United Kingdom flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Dulles Intl to United Kingdom that include hotel bookings?

    Yes. In addition to deals on Dulles Intl to United Kingdom flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Dulles Intl to United Kingdom?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to United Kingdom.

  • Can I find deals for business class flights from Dulles Intl to United Kingdom?

    Yes. Cheapflights offers flight deals from Dulles Intl to United Kingdom by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Dulles Intl to United Kingdom that allow pets onboard?

    Many airlines flying from Dulles Intl to United Kingdom offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Dulles Intl to United Kingdom?

    Yes, you can often find last-minute deals on Dulles Intl to United Kingdom flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Washington, D.C. Dulles Intl Airport to United Kingdom flight deals updated?

    The Washington, D.C. Dulles Intl Airport to United Kingdom flight deals you see on this page were last updated on 6/5.

  • What are the most popular airlines that fly from Washington, D.C. Dulles Intl Airport to United Kingdom?

  • What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to United Kingdom?

    Currently, November is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to United Kingdom (average of $653). Flying from Washington, D.C. Dulles Intl Airport to United Kingdom in June is currently the most expensive (average of $1,102). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Dulles Intl to United Kingdom
See prices for flight routes from nearby airports that may be better suited for you.

Top 10 airlines flying from Dulles Intl to United Kingdom

Discover the top 10 airlines that operate flights from Dulles Intl to United Kingdom. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 3,050,429 searches. Data last updated junio 5, 2024.
AirlineCheapestAverageFlexibilityOn-time
Norse Atlantic UKCheapest$182Average$614FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$241Average$794FlexibilityNo cancel feeOn-time75%
PLAYCheapest$367Average$494FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$387Average$805FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$387Average$932FlexibilityNo cancel feeOn-time76%
Air CanadaCheapest$392Average$969FlexibilityNo cancel feeOn-time67%
Scandinavian AirlinesCheapest$426Average$565FlexibilityNo cancel feeOn-time77%
TAP AIR PORTUGALCheapest$478Average$600FlexibilityNo cancel feeOn-timeN/A
Aer LingusCheapest$479Average$724FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$492Average$722FlexibilityNo cancel feeOn-time76%

Search flights from Dulles Intl to United Kingdom by cabin class

Find flights from Dulles Intl to United Kingdom, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Hourly flight availability from Dulles Intl to United Kingdom

Find hourly flight availability from Dulles Intl to United Kingdom. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated junio 5, 2024.
1%of flight departuresEarly morningMidnight to 6 am
0%of flight departuresMorning6 am to noon
37%of flight departuresAfternoonNoon to 6 pm
62%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Dulles Intl to United Kingdom?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Dulles Intl to United Kingdom. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Dulles Intl to United Kingdom?

Cheapflights simply makes it quick and affordable to book flights from Dulles Intl to United Kingdom by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Dulles Intl to United Kingdom with no change fees?

Certainly. Search results for flights to United Kingdom from Dulles Intl shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Dulles Intl to United Kingdom become cheaper?

Of course! You can now track prices for flights from Dulles Intl to United Kingdom and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.