Cheap flights from San Diego (SAN) to Illinois from $43
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 8/27. 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.
SAN — ORD
Jun 4 — Jun 111
From?
To?
1 adult, Economy
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How far in advance should I book a flight from San Diego to Illinois?
Find a great deal and save up to 27% by booking at least 52 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from San Diego to Illinois within the next two weeks, with the cheapest ticket starting at $317.
What is the cheapest month to fly from San Diego to Illinois?
Our data shows that September tends to be the cheapest month to fly to Illinois from San Diego. Users have commonly found prices around $400 for the month, but tickets can be as low as $133. Due to multiple factors, prepare for potentially higher prices in June.
What is the cheapest time of day to fly from SAN to IL?
When flying from San Diego to Illinois, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Cheap Spirit Airlines flights from San Diego to Illinois
Explore cheap flight options specifically provided by Spirit Airlines for the route between San Diego and Illinois. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 30, 2024.
Take a look at some of the lowest-priced Spirit Airlines flights heading from San Diego to Illinois. Make sure to double check the flight details before booking.
Wed 8/289:00 amSAN - ORD
1 stop12h 58mSpirit Airlines
Tue 9/106:00 amORD - SAN
2 stops19h 31mSpirit Airlines
Deal found 5/30$117
Wed 8/289:00 amSAN - ORD
1 stop12h 58mSpirit Airlines
Wed 9/41:13 pmORD - SAN
1 stop7h 45mSpirit Airlines
Deal found 5/30$142
Tue 7/168:34 amSAN - ORD
1 stop8h 51mSpirit Airlines
Tue 7/235:10 amORD - SAN
1 stop28h 27mSpirit Airlines
Deal found 5/29$148
Wed 8/1411:13 amSAN - ORD
1 stop8h 44mSpirit Airlines
Wed 8/218:16 pmORD - SAN
1 stop13h 24mSpirit Airlines
Deal found 5/29$159
Wed 6/268:14 amSAN - ORD
1 stop13h 36mSpirit Airlines
Wed 7/39:19 amORD - SAN
1 stop13h 11mSpirit Airlines
Deal found 5/29$162
Tue 7/28:29 amSAN - ORD
1 stop13h 21mSpirit Airlines
Wed 7/179:19 amORD - SAN
1 stop6h 56mSpirit Airlines
Deal found 5/30$163
Mon 6/1710:40 pmSAN - ORD
1 stop13h 48mSpirit Airlines
Wed 6/1912:32 pmORD - SAN
1 stop11h 55mSpirit Airlines
Deal found 5/29$164
Wed 7/108:34 amSAN - ORD
1 stop8h 51mSpirit Airlines
Mon 7/151:11 pmORD - SAN
1 stop20h 26mSpirit Airlines
Deal found 5/29$165
Wed 6/129:36 pmSAN - ORD
1 stop6h 48mSpirit Airlines
Wed 6/1912:32 pmORD - SAN
1 stop11h 55mSpirit Airlines
Deal found 5/30$166
Cheap American Airlines flights from San Diego to Illinois
Explore cheap flight options specifically provided by American Airlines for the route between San Diego and Illinois. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 30, 2024.
Browse through some of the cheapest American Airlines flights traveling from San Diego to Illinois. If these deals don't fit your criteria, make sure to check back soon as new deals are always added.
Sat 8/2411:29 amSAN - MLI
1 stop8h 14mAmerican Airlines
Tue 8/276:45 amMLI - SAN
1 stop7h 40mAmerican Airlines
Deal found 5/28$227
Sat 8/2411:29 amSAN - MLI
1 stop8h 14mAmerican Airlines
Tue 8/276:45 amMLI - SAN
2 stops10h 36mAmerican Airlines
Deal found 5/28$232
Sat 8/249:23 amSAN - MLI
2 stops9h 42mAmerican Airlines
Tue 8/276:45 amMLI - SAN
2 stops10h 36mAmerican Airlines
Deal found 5/28$238
Tue 8/610:10 pmSAN - STL
1 stop8h 09mAmerican Airlines
Sat 8/105:00 amSTL - SAN
1 stop7h 03mAmerican Airlines
Deal found 5/29$245
Mon 7/14:20 pmSAN - STL
1 stop5h 30mAmerican Airlines
Thu 7/48:01 amSTL - SAN
2 stops9h 10mAmerican Airlines
Deal found 5/29$385
Thu 6/612:36 pmSAN - ORD
1 stop9h 42mAmerican Airlines
Thu 6/206:39 pmORD - SAN
Nonstop4h 27mAmerican Airlines
Deal found 5/29$453
Thu 6/610:52 pmSAN - ORD
Nonstop4h 08mAmerican Airlines
Thu 6/206:39 pmORD - SAN
Nonstop4h 27mAmerican Airlines
Deal found 5/29$458
Sun 6/910:15 pmSAN - ORD
1 stop8h 40mAmerican Airlines
Fri 6/216:39 pmORD - SAN
Nonstop4h 27mAmerican Airlines
Deal found 5/29$466
Thu 6/610:52 pmSAN - ORD
Nonstop4h 08mAmerican Airlines
Thu 6/206:39 pmORD - SAN
Nonstop4h 27mAmerican Airlines
Deal found 5/30$476
Cheap San Diego to Illinois flights in May & June 2024
Find cheap flight options from San Diego to Illinois specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,784,634 searches. Prices were last updated on May 30, 2024.
These are some of the best deals we've found on flights to Illinois in 2024 at this time. More deals are always being added, so be sure to check back regularly.
Wed 6/58:21 pmSAN - ORD
1 stop7h 02mFrontier
Sat 6/810:11 pmORD - SAN
1 stop10h 50mFrontier
Deal found 5/29$140
Wed 6/58:21 pmSAN - MDW
1 stop7h 08mFrontier
Sat 6/810:59 pmMDW - SAN
1 stop11h 23mFrontier
Deal found 5/29$140
Fri 5/318:21 pmSAN - STL
1 stop11h 52mFrontier
Sat 6/18:04 pmSTL - SAN
1 stop13h 00mFrontier
Deal found 5/30$140
Sat 6/88:00 amSAN - ORD
1 stop11h 06mFrontier
Thu 6/138:23 pmORD - SAN
1 stop19h 55mFrontier
Deal found 5/29$141
Tue 6/118:01 amSAN - STL
1 stop23h 28mFrontier
Sat 6/157:29 pmSTL - SAN
1 stop14h 16mFrontier
Deal found 5/29$141
Sat 6/88:00 amSAN - ORD
1 stop11h 06mFrontier
Tue 6/118:23 pmORD - SAN
1 stop25h 00mFrontier
Deal found 5/29$142
Mon 6/102:48 pmSAN - ORD
1 stop12h 37mFrontier
Thu 6/138:23 pmORD - SAN
1 stop19h 55mFrontier
Deal found 5/29$143
Tue 6/118:01 amSAN - ORD
1 stop14h 39mFrontier
Thu 6/138:23 pmORD - SAN
1 stop19h 55mFrontier
Deal found 5/29$144
Sat 6/81:09 pmSAN - ORD
2 stops9h 24mFrontier
Mon 6/109:43 pmORD - SAN
1 stop11h 18mFrontier
Deal found 5/29$145
San Diego to Illinois 2024 flight deals
Discover exclusive flight deals for travel between San Diego and Illinois in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 30, 2024.
These are some of the best deals we've found on flights to Illinois in 2024 at this time. More deals are always being added, so be sure to check back regularly.
Wed 8/289:00 amSAN - ORD
1 stop12h 58mMultiple Airlines
Wed 9/47:30 pmORD - SAN
1 stop19h 23mMultiple Airlines
Deal found 5/29$128
Thu 8/224:12 pmSAN - ORD
1 stop10h 35mFrontier
Wed 8/287:30 pmORD - SAN
1 stop26h 35mFrontier
Deal found 5/30$138
Tue 9/177:24 amSAN - MDW
1 stop26h 28mFrontier
Sat 9/2110:08 pmMDW - SAN
1 stop11h 30mFrontier
Deal found 5/29$138
Wed 6/58:21 pmSAN - ORD
1 stop7h 02mFrontier
Sat 6/810:11 pmORD - SAN
1 stop10h 50mFrontier
Deal found 5/29$140
Wed 6/58:21 pmSAN - MDW
1 stop7h 08mFrontier
Sat 6/810:59 pmMDW - SAN
1 stop11h 23mFrontier
Deal found 5/29$140
Fri 5/318:21 pmSAN - STL
1 stop11h 52mFrontier
Sat 6/18:04 pmSTL - SAN
1 stop13h 00mFrontier
Deal found 5/30$140
Sat 6/88:00 amSAN - ORD
1 stop11h 06mFrontier
Thu 6/138:23 pmORD - SAN
1 stop19h 55mFrontier
Deal found 5/29$141
Tue 6/118:01 amSAN - STL
1 stop23h 28mFrontier
Sat 6/157:29 pmSTL - SAN
1 stop14h 16mFrontier
Deal found 5/29$141
Sat 6/88:00 amSAN - ORD
1 stop11h 06mFrontier
Tue 6/118:23 pmORD - SAN
1 stop25h 00mFrontier
Deal found 5/29$142
Non-stop flights to Illinois from San Diego
Discover non-stop flight options from San Diego to Illinois. Find direct flights with no layovers, providing a convenient travel experience. Explore non-stop flight options based on user searches, and compare prices and availability for your desired travel dates. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 30, 2024.
For a quicker trip, book one of these direct flights from San Diego to Illinois. Users seeking other options on flights from San Diego to Illinois should update the search form at the top of the page.
Thu 6/2010:52 pmSAN - ORD
Nonstop4h 08mAmerican Airlines
Fri 6/216:39 pmORD - SAN
Nonstop4h 27mAmerican Airlines
Deal found 5/29$301
Thu 6/2710:52 pmSAN - ORD
Nonstop4h 08mAmerican Airlines
Mon 7/110:00 amORD - SAN
Nonstop4h 20mAmerican Airlines
Deal found 5/29$321
Thu 6/2710:52 pmSAN - ORD
Nonstop4h 08mAmerican Airlines
Mon 7/14:51 pmORD - SAN
Nonstop4h 10mAmerican Airlines
Deal found 5/29$328
Mon 6/2410:52 pmSAN - ORD
Nonstop4h 08mAmerican Airlines
Wed 7/1710:02 amORD - SAN
Nonstop4h 18mAmerican Airlines
Deal found 5/29$334
Thu 6/1310:52 pmSAN - ORD
Nonstop4h 08mAmerican Airlines
Mon 6/1710:00 amORD - SAN
Nonstop4h 20mAmerican Airlines
Deal found 5/29$341
Thu 6/2010:29 pmSAN - ORD
Nonstop4h 11mUnited Airlines
Sun 6/237:18 amORD - SAN
Nonstop4h 18mUnited Airlines
Deal found 5/29$346
Fri 6/1410:52 pmSAN - ORD
Nonstop4h 08mAmerican Airlines
Sat 6/226:39 pmORD - SAN
Nonstop4h 27mAmerican Airlines
Deal found 5/29$351
Thu 7/411:22 amSAN - ORD
Nonstop4h 14mAmerican Airlines
Tue 7/98:15 amORD - SAN
Nonstop4h 14mAmerican Airlines
Deal found 5/29$354
Mon 7/110:52 pmSAN - ORD
Nonstop4h 08mAmerican Airlines
Sat 8/34:58 pmORD - SAN
Nonstop4h 06mAmerican Airlines
Deal found 5/28$356
San Diego to Illinois flights leaving soon
Find last-minute flight options from San Diego to Illinois 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 2,784,634 searches. Data last updated May 30, 2024.
Users seeking a last-minute flight from San Diego to Illinois should consider booking one of these fares. Tip: verify your flight details before completing your reservation.
Wed 6/58:21 pmSAN - ORD
1 stop7h 02mFrontier
Sat 6/810:11 pmORD - SAN
1 stop10h 50mFrontier
Deal found 5/29$140
Sat 6/88:00 amSAN - ORD
1 stop11h 06mFrontier
Thu 6/138:23 pmORD - SAN
1 stop19h 55mFrontier
Deal found 5/29$141
Sat 6/88:00 amSAN - ORD
1 stop11h 06mFrontier
Tue 6/118:23 pmORD - SAN
1 stop25h 00mFrontier
Deal found 5/29$142
Wed 6/58:21 pmSAN - ORD
1 stop7h 02mFrontier
Thu 6/68:23 pmORD - SAN
1 stop15h 11mFrontier
Deal found 5/29$144
Sat 6/81:09 pmSAN - ORD
2 stops9h 24mFrontier
Mon 6/109:43 pmORD - SAN
1 stop11h 18mFrontier
Deal found 5/29$145
Sat 6/81:09 pmSAN - ORD
2 stops9h 24mFrontier
Thu 6/138:23 pmORD - SAN
1 stop19h 55mFrontier
Deal found 5/29$146
Thu 6/610:16 amSAN - ORD
1 stop12h 24mFrontier
Tue 6/116:00 amORD - SAN
2 stops15h 24mFrontier
Deal found 5/29$147
Wed 6/58:21 pmSAN - ORD
1 stop7h 02mFrontier
Sat 6/88:35 pmORD - SAN
1 stop13h 10mFrontier
Deal found 5/30$150
Thu 6/610:16 amSAN - STL
1 stop21h 24mFrontier
Mon 6/1010:59 pmSTL - SAN
1 stop12h 26mFrontier
Deal found 5/29$150
One-way flights to Illinois from San Diego
Search for one-way flight options from San Diego to Illinois. 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 2,784,634 searches. Data last updated May 30, 2024.
Take a look at some of the one-way flights we've detected from San Diego to Illinois. Users can also find round-trip San Diego to Illinois flights by using the search form above.
Tue 8/279:00 pmSAN - STL
1 stop11h 46mSpirit Airlines
Deal found 5/29$43
Wed 8/289:00 amSAN - ORD
1 stop12h 58mSpirit Airlines
Deal found 5/29$46
Tue 8/272:19 pmSAN - STL
2 stops18h 27mSpirit Airlines
Deal found 5/29$58
Tue 8/279:00 amSAN - ORD
2 stops21h 33mSpirit Airlines
Deal found 5/29$60
Wed 9/48:41 pmSAN - ORD
1 stop6h 06mFrontier
Deal found 5/28$64
Tue 6/119:19 pmSAN - ORD
2 stops24h 31mSpirit Airlines
Deal found 5/28$65
Thu 6/138:24 pmSAN - ORD
1 stop7h 18mFrontier
Deal found 5/29$70
Sat 6/88:24 pmSAN - MDW
1 stop6h 57mFrontier
Deal found 5/30$70
Wed 6/58:21 pmSAN - MDW
1 stop7h 08mFrontier
Deal found 5/29$71
Find flights from San Diego to Illinois within your budget
Customize your flight search to find flights from San Diego to Illinois 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 2,784,634 searches. Data last updated May 30, 2024.
Fly from
Any airport
Fly to
Any airport
Budget
$117 - $268
Route
Depart
Return
Price
San DiegoChicago O'Hare Intl
SAN - ORD
SANORD
San Diego
Wed 8/28
1 stop12h 58m
Chicago O'Hare Intl
Tue 9/10
2 stops19h 31m
$117
San DiegoChicago O'Hare Intl
SAN - ORD
SANORD
San Diego
Wed 8/28
1 stop12h 58m
Chicago O'Hare Intl
Wed 9/4
1 stop19h 23m
$128
San DiegoChicago O'Hare Intl
SAN - ORD
SANORD
San Diego
Thu 8/22
1 stop10h 35m
Chicago O'Hare Intl
Wed 8/28
1 stop26h 35m
$138
San DiegoChicago Midway
SAN - MDW
SANMDW
San Diego
Tue 9/17
1 stop26h 28m
Chicago Midway
Sat 9/21
1 stop11h 30m
$138
San DiegoChicago O'Hare Intl
SAN - ORD
SANORD
San Diego
Wed 8/28
1 stop12h 58m
Chicago O'Hare Intl
Wed 9/4
1 stop7h 45m
$142
San DiegoChicago O'Hare Intl
SAN - ORD
SANORD
San Diego
Thu 6/13
1 stop7h 18m
Chicago O'Hare Intl
Wed 6/19
1 stop11h 55m
$150
San DiegoMoline Quad-City
SAN - MLI
SANMLI
San Diego
Sat 8/24
1 stop8h 14m
Moline Quad-City
Tue 8/27
1 stop7h 40m
$227
San DiegoLambert-St Louis
SAN - STL
SANSTL
San Diego
Sun 8/4
1 stop8h 51m
Lambert-St Louis
Thu 8/8
1 stop7h 20m
$246
San DiegoMoline Quad-City
SAN - MLI
SANMLI
San Diego
Fri 8/23
1 stop6h 10m
Moline Quad-City
Mon 8/26
1 stop7h 54m
$268
No data available for this route at this time. Please check back soon.
Best time to book a flight from San Diego to Illinois
Have a flexible travel schedule? Discover the best time to fly to Illinois from San Diego 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 Illinois
Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated May 30, 2024.
To help decide which airline to fly from San Diego to Illinois, see what other customers have to say about Spirit Airlines, American Airlines and Frontier. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
9,192 reviews
Boarding
8.2
Overall
8.1
Crew
8.6
Comfort
7.9
Entertainment
7.3
Food
7.3
Reviews
1 / 10
Paid a lot for our exit row seats and they weren’t that roomy.
9,192 reviews
9,192 reviews
Boarding
8.2
Overall
8.1
Crew
8.6
Comfort
7.9
Entertainment
7.3
Food
7.3
Reviews
1 / 10
Paid a lot for our exit row seats and they weren’t that roomy.
10,457 reviews
9,192 reviews
Boarding
8.2
Overall
8.1
Crew
8.6
Comfort
7.9
Entertainment
7.3
Food
7.3
Reviews
1 / 10
Paid a lot for our exit row seats and they weren’t that roomy.
2,866 reviews
9,192 reviews
Boarding
8.2
Overall
8.1
Crew
8.6
Comfort
7.9
Entertainment
7.3
Food
7.3
Reviews
1 / 10
Paid a lot for our exit row seats and they weren’t that roomy.
1,002 reviews
9,192 reviews
Boarding
8.2
Overall
8.1
Crew
8.6
Comfort
7.9
Entertainment
7.3
Food
7.3
Reviews
1 / 10
Paid a lot for our exit row seats and they weren’t that roomy.
10,777 reviews
9,192 reviews
Boarding
8.2
Overall
8.1
Crew
8.6
Comfort
7.9
Entertainment
7.3
Food
7.3
Reviews
1 / 10
Paid a lot for our exit row seats and they weren’t that roomy.
Related info for your journey
Find useful and relevant information for your journey from San Diego to Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for San Diego to IllinoisSee prices for flight routes from nearby airports that may be better suited for you.
See prices for flight routes from nearby airports that may be better suited for you.
Top 6 airlines flying from San Diego to Illinois
Discover the top 6 airlines that operate flights from San Diego to Illinois. 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 2,784,634 searches. Data last updated May 30, 2024.
Search flights from San Diego to Illinois by cabin class
Find flights from San Diego to Illinois, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Hourly flight availability from San Diego to Illinois
Find hourly flight availability from San Diego to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 30, 2024.
| 1%of flight departures | Early morningMidnight to 6 am |
|---|---|
| 61%of flight departures | Morning6 am to noon |
| 21%of flight departures | AfternoonNoon to 6 pm |
| 17%of flight departures | Evening6 pm to midnight |
Midnight
6 AM
Noon
6 PM
Book a flight to one of these trending destinations
User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations
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 San Diego to Illinois?
Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from San Diego to Illinois. 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 San Diego to Illinois?
By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Illinois from San Diego.
Can Cheapflights find flights from San Diego to Illinois with no change fees?
Yes, we can. To see specific flights from San Diego to Illinois with no change fees, users can toggle flexible booking options after using the search form above to find flights.
Can Cheapflights notify me if prices for flights from San Diego to Illinois become cheaper?
Yes, Cheapflights offers price alerts on San Diego to Illinois flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.