Cheap flights from San Diego (SAN) to Illinois from $69
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 6/27. 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 7 — Jun 141
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 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 2,807,690 searches. Data last updated June 2, 2024.
Take a look at some of the lowest-priced American Airlines flights heading from San Diego to Illinois. Make sure to double check the flight details before booking.
Fri 6/2810:52 pmSAN - ORD
Nonstop4h 08mAmerican Airlines
Fri 7/57:14 amORD - SAN
1 stop9h 59mAmerican Airlines
Deal found 6/1$298
Mon 7/110:15 pmSAN - STL
1 stop8h 18mAmerican Airlines
Thu 7/48:01 amSTL - SAN
2 stops9h 10mAmerican Airlines
Deal found 6/1$417
Tue 6/1111:22 amSAN - ORD
Nonstop4h 14mAmerican Airlines
Sat 6/296:39 pmORD - SAN
Nonstop4h 27mAmerican Airlines
Deal found 6/1$457
Tue 6/1110:15 pmSAN - ORD
1 stop8h 40mAmerican Airlines
Sat 6/296:39 pmORD - SAN
Nonstop4h 27mAmerican Airlines
Deal found 6/1$467
Thu 6/202:27 pmSAN - BMI
1 stop6h 40mAmerican Airlines
Wed 6/263:14 pmBMI - SAN
1 stop7h 52mAmerican Airlines
Deal found 6/2$507
Wed 6/1210:52 pmSAN - ORD
Nonstop4h 08mAmerican Airlines
Mon 6/176:39 pmORD - SAN
Nonstop4h 27mAmerican Airlines
Deal found 6/2$520
Wed 6/1210:52 pmSAN - ORD
Nonstop4h 08mAmerican Airlines
Sat 6/157:14 amORD - SAN
1 stop6h 31mAmerican Airlines
Deal found 6/1$530
Mon 6/1010:52 pmSAN - ORD
Nonstop4h 08mAmerican Airlines
Sun 6/166:39 pmORD - SAN
Nonstop4h 27mAmerican Airlines
Deal found 6/1$538
Sat 6/81:12 pmSAN - ORD
Nonstop4h 13mAmerican Airlines
Tue 6/118:10 amORD - SAN
Nonstop4h 19mAmerican Airlines
Deal found 6/1$613
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 2,807,690 searches. Data last updated June 2, 2024.
Browse through some of the cheapest Spirit 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.
Thu 8/228:27 amSAN - ORD
1 stop13h 38mSpirit Airlines
Mon 8/268:16 pmORD - SAN
1 stop13h 21mSpirit Airlines
Deal found 6/1$121
Wed 8/218:27 amSAN - ORD
1 stop13h 38mSpirit Airlines
Tue 8/278:16 pmORD - SAN
1 stop13h 21mSpirit Airlines
Deal found 6/2$136
Thu 8/228:27 amSAN - ORD
1 stop13h 38mSpirit Airlines
Mon 8/268:16 pmORD - SAN
2 stops19h 55mSpirit Airlines
Deal found 6/1$138
Fri 8/238:27 amSAN - ORD
1 stop25h 36mSpirit Airlines
Mon 8/268:16 pmORD - SAN
1 stop13h 21mSpirit Airlines
Deal found 6/1$146
Tue 6/258:29 amSAN - ORD
1 stop13h 21mSpirit Airlines
Wed 7/101:28 pmORD - SAN
1 stop8h 32mSpirit Airlines
Deal found 6/1$155
Tue 9/109:00 pmSAN - ORD
2 stops13h 03mSpirit Airlines
Wed 9/189:36 amORD - SAN
1 stop12h 42mSpirit Airlines
Deal found 6/1$156
Tue 6/258:29 amSAN - ORD
1 stop13h 21mSpirit Airlines
Tue 7/309:49 amORD - SAN
1 stop13h 52mSpirit Airlines
Deal found 6/1$158
Sat 6/2211:15 amSAN - ORD
1 stop12h 02mSpirit Airlines
Tue 6/2510:01 pmORD - SAN
1 stop12h 33mSpirit Airlines
Deal found 5/31$159
Wed 7/108:34 amSAN - ORD
1 stop8h 51mSpirit Airlines
Wed 7/179:19 amORD - SAN
1 stop12h 41mSpirit Airlines
Deal found 5/31$160
Cheap San Diego to Illinois flights in June & July 2024
Find cheap flight options from San Diego to Illinois specifically for the months of June and July 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,807,690 searches. Prices were last updated on June 2, 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 6/52:52 pmSAN - STL
1 stop5h 15mFrontier
Tue 6/113:47 pmSTL - SAN
1 stop7h 35mFrontier
Deal found 6/1$126
Wed 6/52:52 pmSAN - STL
1 stop5h 15mFrontier
Sat 6/88:02 pmSTL - SAN
1 stop12h 59mFrontier
Deal found 6/1$136
Mon 6/1010:06 amSAN - ORD
1 stop8h 42mFrontier
Wed 6/128:23 pmORD - SAN
1 stop12h 57mFrontier
Deal found 6/2$140
Wed 6/125:59 pmSAN - MDW
1 stop9h 30mFrontier
Sat 6/155:40 amMDW - SAN
1 stop10h 39mFrontier
Deal found 6/1$140
Thu 6/68:01 amSAN - STL
1 stop23h 39mFrontier
Thu 6/133:32 pmSTL - SAN
1 stop7h 50mFrontier
Deal found 6/1$140
Sat 6/85:56 pmSAN - ORD
1 stop28h 44mFrontier
Thu 6/138:23 pmORD - SAN
1 stop15h 11mFrontier
Deal found 6/2$142
Mon 6/108:01 amSAN - ORD
1 stop10h 47mFrontier
Tue 6/116:00 amORD - SAN
1 stop14h 43mFrontier
Deal found 6/1$144
Tue 6/117:45 pmSAN - STL
1 stop11h 44mFrontier
Thu 6/133:32 pmSTL - SAN
1 stop23h 25mFrontier
Deal found 6/1$144
Thu 6/68:29 pmSAN - STL
2 stops23h 30mFrontier
Thu 6/137:29 pmSTL - SAN
1 stop20h 49mFrontier
Deal found 6/1$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 2,807,690 searches. Data last updated June 2, 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.
Thu 8/228:27 amSAN - ORD
1 stop13h 38mSpirit Airlines
Mon 8/268:16 pmORD - SAN
1 stop13h 21mSpirit Airlines
Deal found 6/1$121
Wed 6/52:52 pmSAN - STL
1 stop5h 15mFrontier
Tue 6/113:47 pmSTL - SAN
1 stop7h 35mFrontier
Deal found 6/1$126
Sat 8/243:05 pmSAN - STL
1 stop5h 46mMultiple Airlines
Wed 8/281:59 pmSTL - SAN
1 stop5h 18mMultiple Airlines
Deal found 6/1$134
Wed 8/218:27 amSAN - ORD
1 stop13h 38mSpirit Airlines
Tue 8/278:16 pmORD - SAN
1 stop13h 21mSpirit Airlines
Deal found 6/2$136
Tue 9/1010:15 amSAN - MDW
1 stop23h 37mFrontier
Wed 9/1810:00 pmMDW - SAN
1 stop24h 05mFrontier
Deal found 6/1$136
Wed 6/52:52 pmSAN - STL
1 stop5h 15mFrontier
Sat 6/88:02 pmSTL - SAN
1 stop12h 59mFrontier
Deal found 6/1$136
Tue 9/1010:15 amSAN - ORD
1 stop8h 06mFrontier
Wed 9/187:30 pmORD - SAN
1 stop26h 35mFrontier
Deal found 6/2$137
Thu 8/228:27 amSAN - ORD
1 stop13h 38mSpirit Airlines
Mon 8/268:16 pmORD - SAN
2 stops19h 55mSpirit Airlines
Deal found 6/1$138
Mon 6/1010:06 amSAN - ORD
1 stop8h 42mFrontier
Wed 6/128:23 pmORD - SAN
1 stop12h 57mFrontier
Deal found 6/2$140
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 2,807,690 searches. Data last updated June 2, 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.
Sun 6/2310:52 pmSAN - ORD
Nonstop4h 08mAmerican Airlines
Sat 6/296:39 pmORD - SAN
Nonstop4h 27mAmerican Airlines
Deal found 6/2$301
Fri 6/287:10 pmSAN - ORD
Nonstop4h 11mUnited Airlines
Mon 7/17:41 pmORD - SAN
Nonstop4h 19mUnited Airlines
Deal found 5/31$321
Mon 6/2410:52 pmSAN - ORD
Nonstop4h 08mAmerican Airlines
Tue 7/166:49 pmORD - SAN
Nonstop4h 28mAmerican Airlines
Deal found 6/2$334
Thu 6/2710:52 pmSAN - ORD
Nonstop4h 08mAmerican Airlines
Sun 6/306:39 pmORD - SAN
Nonstop4h 27mAmerican Airlines
Deal found 6/1$346
Thu 7/411:22 amSAN - ORD
Nonstop4h 14mAmerican Airlines
Tue 7/98:15 amORD - SAN
Nonstop4h 14mAmerican Airlines
Deal found 6/1$354
Thu 6/2010:29 pmSAN - ORD
Nonstop4h 11mUnited Airlines
Fri 6/287:41 pmORD - SAN
Nonstop4h 19mUnited Airlines
Deal found 6/1$363
Thu 8/291:16 pmSAN - ORD
Nonstop4h 16mAmerican Airlines
Wed 9/45:02 pmORD - SAN
Nonstop4h 13mAmerican Airlines
Deal found 6/1$366
Wed 7/1010:48 pmSAN - ORD
Nonstop4h 16mAmerican Airlines
Wed 7/176:49 pmORD - SAN
Nonstop4h 28mAmerican Airlines
Deal found 6/1$367
Tue 8/611:27 amSAN - ORD
Nonstop4h 16mAmerican Airlines
Sat 8/106:47 pmORD - SAN
Nonstop4h 27mAmerican Airlines
Deal found 6/1$368
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 2,807,690 searches. Data last updated June 2, 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.
Mon 6/1010:06 amSAN - ORD
1 stop8h 42mFrontier
Wed 6/128:23 pmORD - SAN
1 stop12h 57mFrontier
Deal found 6/2$140
Wed 6/125:59 pmSAN - MDW
1 stop9h 30mFrontier
Sat 6/155:40 amMDW - SAN
1 stop10h 39mFrontier
Deal found 6/1$140
Sat 6/85:56 pmSAN - ORD
1 stop28h 44mFrontier
Thu 6/138:23 pmORD - SAN
1 stop15h 11mFrontier
Deal found 6/2$142
Mon 6/108:01 amSAN - ORD
1 stop10h 47mFrontier
Tue 6/116:00 amORD - SAN
1 stop14h 43mFrontier
Deal found 6/1$144
Tue 6/117:45 pmSAN - STL
1 stop11h 44mFrontier
Thu 6/133:32 pmSTL - SAN
1 stop23h 25mFrontier
Deal found 6/1$144
Sat 6/85:56 pmSAN - ORD
1 stop28h 44mFrontier
Tue 6/118:23 pmORD - SAN
1 stop25h 00mFrontier
Deal found 6/1$148
Mon 6/108:01 amSAN - ORD
1 stop10h 47mFrontier
Tue 6/116:00 amORD - SAN
2 stops15h 24mFrontier
Deal found 6/1$149
Sat 6/88:24 pmSAN - MDW
1 stop6h 57mFrontier
Thu 6/1310:41 pmMDW - SAN
1 stop10h 20mFrontier
Deal found 6/2$149
Sat 6/85:56 pmSAN - ORD
1 stop28h 44mFrontier
Wed 6/128:23 pmORD - SAN
1 stop12h 57mFrontier
Deal found 6/2$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 2,807,690 searches. Data last updated June 2, 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.
Thu 6/278:06 amSAN - ORD
1 stop9h 20mSpirit Airlines
Deal found 6/1$69
Mon 6/1010:06 amSAN - ORD
1 stop8h 42mFrontier
Deal found 6/1$70
Mon 6/108:25 pmSAN - MDW
1 stop7h 04mFrontier
Deal found 6/2$70
Thu 6/278:06 amSAN - ORD
1 stop9h 20mSpirit Airlines
Deal found 6/2$72
Sat 6/88:24 pmSAN - MDW
1 stop6h 57mFrontier
Deal found 6/1$72
Tue 9/33:28 pmSAN - ORD
1 stop7h 55mFrontier
Deal found 6/1$74
Mon 9/28:41 pmSAN - MDW
1 stop7h 52mFrontier
Deal found 6/1$74
Tue 9/38:40 pmSAN - MDW
1 stop7h 53mFrontier
Deal found 6/1$75
Sat 6/811:15 amSAN - ORD
1 stop12h 02mSpirit Airlines
Deal found 6/1$76
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 2,807,690 searches. Data last updated June 2, 2024.
Fly from
Any airport
Fly to
Any airport
Budget
$121 - $298
Route
Depart
Return
Price
San DiegoChicago O'Hare Intl
SAN - ORD
SANORD
San Diego
Thu 8/22
1 stop13h 38m
Chicago O'Hare Intl
Mon 8/26
1 stop13h 21m
$121
San DiegoLambert-St Louis
SAN - STL
SANSTL
San Diego
Sat 8/24
1 stop5h 46m
Lambert-St Louis
Wed 8/28
1 stop5h 18m
$134
San DiegoChicago Midway
SAN - MDW
SANMDW
San Diego
Tue 9/10
1 stop23h 37m
Chicago Midway
Wed 9/18
1 stop24h 05m
$136
San DiegoChicago O'Hare Intl
SAN - ORD
SANORD
San Diego
Wed 8/21
1 stop13h 38m
Chicago O'Hare Intl
Tue 8/27
1 stop13h 21m
$136
San DiegoChicago O'Hare Intl
SAN - ORD
SANORD
San Diego
Wed 8/28
1 stop8h 43m
Chicago O'Hare Intl
Wed 9/4
1 stop26h 35m
$137
San DiegoChicago Midway
SAN - MDW
SANMDW
San Diego
Tue 9/10
1 stop17h 24m
Chicago Midway
Wed 9/18
1 stop24h 05m
$137
San DiegoLambert-St Louis
SAN - STL
SANSTL
San Diego
Sat 8/24
1 stop5h 46m
Lambert-St Louis
Wed 8/28
1 stop5h 18m
$142
San DiegoLambert-St Louis
SAN - STL
SANSTL
San Diego
Thu 6/27
1 stop5h 43m
Lambert-St Louis
Sun 6/30
1 stop8h 29m
$246
San DiegoChicago O'Hare Intl
SAN - ORD
SANORD
San Diego
Fri 6/28
Nonstop4h 08m
Chicago O'Hare Intl
Fri 7/5
1 stop9h 59m
$298
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 June 2, 2024.
To help decide which airline to fly from San Diego to Illinois, see what other customers have to say about American Airlines, Spirit 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.
9,198 reviews
Boarding
8.2
Food
7.3
Overall
8.1
Entertainment
7.3
Comfort
7.9
Crew
8.6
Reviews
1 / 10
Paid a lot for our exit row seats and they weren’t that roomy.
9,198 reviews
9,198 reviews
Boarding
8.2
Food
7.3
Overall
8.1
Entertainment
7.3
Comfort
7.9
Crew
8.6
Reviews
1 / 10
Paid a lot for our exit row seats and they weren’t that roomy.
10,410 reviews
9,198 reviews
Boarding
8.2
Food
7.3
Overall
8.1
Entertainment
7.3
Comfort
7.9
Crew
8.6
Reviews
1 / 10
Paid a lot for our exit row seats and they weren’t that roomy.
2,861 reviews
9,198 reviews
Boarding
8.2
Food
7.3
Overall
8.1
Entertainment
7.3
Comfort
7.9
Crew
8.6
Reviews
1 / 10
Paid a lot for our exit row seats and they weren’t that roomy.
999 reviews
9,198 reviews
Boarding
8.2
Food
7.3
Overall
8.1
Entertainment
7.3
Comfort
7.9
Crew
8.6
Reviews
1 / 10
Paid a lot for our exit row seats and they weren’t that roomy.
10,755 reviews
9,198 reviews
Boarding
8.2
Food
7.3
Overall
8.1
Entertainment
7.3
Comfort
7.9
Crew
8.6
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 2,807,690 searches. Data last updated June 2, 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 June 2, 2024.
| 17%of flight departures | Early morningMidnight to 6 am |
|---|---|
| 55%of flight departures | Morning6 am to noon |
| 16%of flight departures | AfternoonNoon to 6 pm |
| 12%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.