Cheap flights from San Diego (SAN) to Illinois from $58
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 6/26. 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
May 21 — May 281
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 101% 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 $368.
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.
When is the cheapest time to fly from San Diego to Illinois (SAN - 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 2,637,452 searches. Data last updated May 16, 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 6/58:14 amSAN - ORD
1 stop13h 36mSpirit Airlines
Tue 6/1110:01 pmORD - SAN
1 stop12h 33mSpirit Airlines
Deal found 5/16$126
Wed 6/58:14 amSAN - ORD
1 stop13h 36mSpirit Airlines
Wed 6/1212:32 pmORD - SAN
1 stop11h 55mSpirit Airlines
Deal found 5/16$127
Tue 9/176:53 pmSAN - STL
1 stop13h 53mSpirit Airlines
Sat 9/218:00 amSTL - SAN
1 stop7h 29mSpirit Airlines
Deal found 5/14$129
Sat 6/12:38 pmSAN - ORD
1 stop14h 02mSpirit Airlines
Tue 6/47:08 amORD - SAN
1 stop26h 16mSpirit Airlines
Deal found 5/16$135
Thu 5/307:58 pmSAN - ORD
1 stop8h 42mSpirit Airlines
Sat 6/14:05 pmORD - SAN
1 stop9h 48mSpirit Airlines
Deal found 5/15$136
Thu 5/309:12 pmSAN - ORD
1 stop7h 28mSpirit Airlines
Tue 6/410:52 pmORD - SAN
1 stop11h 42mSpirit Airlines
Deal found 5/15$141
Mon 6/38:26 pmSAN - ORD
1 stop8h 14mSpirit Airlines
Wed 6/1212:32 pmORD - SAN
1 stop11h 55mSpirit Airlines
Deal found 5/16$143
Sun 6/27:58 pmSAN - ORD
1 stop8h 42mSpirit Airlines
Tue 6/1110:01 pmORD - SAN
1 stop12h 33mSpirit Airlines
Deal found 5/15$158
Wed 5/299:12 pmSAN - ORD
2 stops19h 46mSpirit Airlines
Sat 6/14:05 pmORD - SAN
1 stop9h 48mSpirit Airlines
Deal found 5/16$163
Cheap Frontier flights from San Diego to Illinois
Explore cheap flight options specifically provided by Frontier 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 2,637,452 searches. Data last updated May 16, 2024.
Browse through some of the cheapest Frontier 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.
Wed 6/52:52 pmSAN - STL
1 stop5h 15mFrontier
Thu 6/63:32 pmSTL - SAN
1 stop17h 29mFrontier
Deal found 5/16$128
Wed 6/52:52 pmSAN - STL
1 stop5h 15mFrontier
Sat 6/88:02 pmSTL - SAN
1 stop12h 59mFrontier
Deal found 5/16$136
Wed 5/2210:11 amSAN - ORD
1 stop13h 02mFrontier
Tue 5/288:00 amORD - SAN
1 stop25h 04mFrontier
Deal found 5/14$137
Sat 6/110:58 amSAN - ORD
1 stop16h 02mFrontier
Wed 6/58:23 pmORD - SAN
1 stop25h 05mFrontier
Deal found 5/15$138
Wed 5/295:06 pmSAN - ORD
1 stop6h 07mFrontier
Tue 6/47:59 pmORD - SAN
1 stop25h 21mFrontier
Deal found 5/15$139
Tue 6/410:26 amSAN - ORD
1 stop8h 24mFrontier
Sat 6/1510:11 pmORD - SAN
1 stop10h 50mFrontier
Deal found 5/15$140
Fri 5/318:21 pmSAN - MDW
1 stop7h 29mFrontier
Tue 6/46:00 amMDW - SAN
1 stop17h 25mFrontier
Deal found 5/16$141
Tue 5/288:04 amSAN - MDW
1 stop7h 08mFrontier
Wed 5/299:10 pmMDW - SAN
1 stop24h 09mFrontier
Deal found 5/16$142
Wed 6/122:52 pmSAN - STL
1 stop5h 15mFrontier
Mon 6/177:29 pmSTL - SAN
1 stop25h 55mFrontier
Deal found 5/15$143
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 2,637,452 searches. Prices were last updated on May 16, 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.
Tue 6/119:19 pmSAN - STL
1 stop13h 46mMultiple Airlines
Thu 6/137:29 pmSTL - SAN
1 stop16h 05mMultiple Airlines
Deal found 5/16$125
Wed 6/58:14 amSAN - ORD
1 stop13h 36mSpirit Airlines
Tue 6/1110:01 pmORD - SAN
1 stop12h 33mSpirit Airlines
Deal found 5/16$126
Wed 6/58:14 amSAN - ORD
1 stop13h 36mSpirit Airlines
Wed 6/1212:32 pmORD - SAN
1 stop11h 55mSpirit Airlines
Deal found 5/16$127
Wed 6/52:52 pmSAN - STL
1 stop5h 15mFrontier
Thu 6/63:32 pmSTL - SAN
1 stop17h 29mFrontier
Deal found 5/16$128
Wed 6/52:52 pmSAN - STL
1 stop5h 15mMultiple Airlines
Wed 6/191:55 pmSTL - SAN
1 stop26h 01mMultiple Airlines
Deal found 5/16$130
Wed 5/295:06 pmSAN - ORD
1 stop6h 07mMultiple Airlines
Tue 6/41:13 pmORD - SAN
1 stop12h 40mMultiple Airlines
Deal found 5/15$133
Tue 5/219:12 pmSAN - STL
1 stop11h 34mMultiple Airlines
Sat 5/258:04 pmSTL - SAN
1 stop13h 00mMultiple Airlines
Deal found 5/15$133
Wed 6/128:24 pmSAN - ORD
1 stop7h 01mMultiple Airlines
Tue 6/1810:01 pmORD - SAN
1 stop12h 33mMultiple Airlines
Deal found 5/15$134
Thu 5/307:58 pmSAN - ORD
1 stop8h 42mSpirit Airlines
Sat 6/14:05 pmORD - SAN
1 stop9h 48mSpirit Airlines
Deal found 5/15$136
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 2,637,452 searches. Data last updated May 16, 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.
Tue 6/119:19 pmSAN - STL
1 stop13h 46mMultiple Airlines
Thu 6/137:29 pmSTL - SAN
1 stop16h 05mMultiple Airlines
Deal found 5/16$125
Wed 6/58:14 amSAN - ORD
1 stop13h 36mSpirit Airlines
Tue 6/1110:01 pmORD - SAN
1 stop12h 33mSpirit Airlines
Deal found 5/16$126
Wed 6/58:14 amSAN - ORD
1 stop13h 36mSpirit Airlines
Wed 6/1212:32 pmORD - SAN
1 stop11h 55mSpirit Airlines
Deal found 5/16$127
Wed 6/52:52 pmSAN - STL
1 stop5h 15mFrontier
Thu 6/63:32 pmSTL - SAN
1 stop17h 29mFrontier
Deal found 5/16$128
Tue 9/176:53 pmSAN - STL
1 stop13h 53mSpirit Airlines
Sat 9/218:00 amSTL - SAN
1 stop7h 29mSpirit Airlines
Deal found 5/14$129
Wed 6/52:52 pmSAN - STL
1 stop5h 15mMultiple Airlines
Wed 6/191:55 pmSTL - SAN
1 stop26h 01mMultiple Airlines
Deal found 5/16$130
Wed 5/295:06 pmSAN - ORD
1 stop6h 07mMultiple Airlines
Tue 6/41:13 pmORD - SAN
1 stop12h 40mMultiple Airlines
Deal found 5/15$133
Tue 5/219:12 pmSAN - STL
1 stop11h 34mMultiple Airlines
Sat 5/258:04 pmSTL - SAN
1 stop13h 00mMultiple Airlines
Deal found 5/15$133
Wed 6/128:24 pmSAN - ORD
1 stop7h 01mMultiple Airlines
Tue 6/1810:01 pmORD - SAN
1 stop12h 33mMultiple Airlines
Deal found 5/15$134
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 2,637,452 searches. Data last updated May 16, 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.
Wed 5/2910:57 pmSAN - ORD
Nonstop4h 03mAmerican Airlines
Tue 6/48:55 pmORD - SAN
Nonstop4h 19mAmerican Airlines
Deal found 5/15$341
Fri 5/3111:35 amSAN - ORD
Nonstop4h 10mAmerican Airlines
Tue 6/48:55 pmORD - SAN
Nonstop4h 19mAmerican Airlines
Deal found 5/15$355
Wed 9/41:19 pmSAN - ORD
Nonstop4h 11mAmerican Airlines
Sat 9/144:50 pmORD - SAN
Nonstop4h 08mAmerican Airlines
Deal found 5/15$356
Fri 9/66:23 amSAN - ORD
Nonstop4h 17mAmerican Airlines
Wed 9/118:20 amORD - SAN
Nonstop4h 09mAmerican Airlines
Deal found 5/16$357
Tue 6/2510:52 pmSAN - ORD
Nonstop4h 08mAmerican Airlines
Tue 7/304:58 pmORD - SAN
Nonstop4h 06mAmerican Airlines
Deal found 5/15$369
Wed 7/3110:48 pmSAN - ORD
Nonstop4h 16mAmerican Airlines
Sat 8/310:02 amORD - SAN
Nonstop4h 18mAmerican Airlines
Deal found 5/16$370
Wed 5/2910:57 pmSAN - ORD
Nonstop4h 03mAmerican Airlines
Sat 6/15:05 pmORD - SAN
Nonstop4h 13mAmerican Airlines
Deal found 5/16$371
Wed 7/1710:48 pmSAN - ORD
Nonstop4h 16mAmerican Airlines
Wed 7/2410:02 amORD - SAN
Nonstop4h 18mAmerican Airlines
Deal found 5/15$377
Sat 9/2810:45 pmSAN - ORD
Nonstop4h 15mAmerican Airlines
Wed 10/28:20 pmORD - SAN
Nonstop4h 12mAmerican Airlines
Deal found 5/15$378
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 2,637,452 searches. Data last updated May 16, 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.
Tue 5/219:12 pmSAN - STL
1 stop11h 34mMultiple Airlines
Sat 5/258:04 pmSTL - SAN
1 stop13h 00mMultiple Airlines
Deal found 5/15$133
Wed 5/2210:11 amSAN - ORD
1 stop13h 02mFrontier
Tue 5/288:00 amORD - SAN
1 stop25h 04mFrontier
Deal found 5/14$137
Sat 5/258:21 pmSAN - STL
1 stop11h 52mFrontier
Sun 5/2611:22 pmSTL - SAN
1 stop9h 42mFrontier
Deal found 5/16$146
Sat 5/252:55 pmSAN - ORD
1 stop7h 23mFrontier
Mon 5/277:59 pmORD - SAN
1 stop25h 22mFrontier
Deal found 5/15$152
Sat 5/252:55 pmSAN - MDW
1 stop18h 14mFrontier
Mon 5/279:10 pmMDW - SAN
1 stop24h 11mFrontier
Deal found 5/15$152
Wed 5/225:06 pmSAN - ORD
1 stop6h 07mFrontier
Wed 5/296:45 pmORD - SAN
1 stop14h 19mFrontier
Deal found 5/15$154
Wed 5/228:04 amSAN - ORD
1 stop15h 09mFrontier
Thu 5/307:59 pmORD - SAN
1 stop25h 22mFrontier
Deal found 5/16$159
Wed 5/228:04 amSAN - MDW
1 stop25h 05mFrontier
Wed 5/295:01 amMDW - SAN
1 stop28h 03mFrontier
Deal found 5/15$159
Fri 5/242:25 pmSAN - MDW
1 stop28h 41mFrontier
Tue 5/289:10 pmMDW - SAN
1 stop24h 11mFrontier
Deal found 5/16$160
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 2,637,452 searches. Data last updated May 16, 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.
Wed 6/262:52 pmSAN - STL
1 stop5h 15mFrontier
Deal found 5/16$58
Tue 6/259:19 pmSAN - STL
1 stop13h 46mSpirit Airlines
Deal found 5/14$59
Wed 6/58:14 amSAN - ORD
1 stop13h 36mSpirit Airlines
Deal found 5/15$65
Tue 5/212:38 pmSAN - STL
1 stop18h 08mSpirit Airlines
Deal found 5/15$65
Wed 6/58:14 amSAN - ORD
1 stop13h 36mSpirit Airlines
Deal found 5/15$67
Sat 6/112:15 pmSAN - ORD
1 stop10h 17mSpirit Airlines
Deal found 5/15$68
Thu 5/307:58 pmSAN - ORD
1 stop8h 42mSpirit Airlines
Deal found 5/15$69
Tue 6/117:44 pmSAN - ORD
2 stops26h 06mSpirit Airlines
Deal found 5/15$70
Sat 6/18:21 pmSAN - MDW
1 stop7h 29mFrontier
Deal found 5/15$70
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 2,637,452 searches. Data last updated May 16, 2024.
Fly from
Any airport
Fly to
Any airport
Budget
$125 - $236
Route
Depart
Return
Price
San DiegoLambert-St Louis
SAN - STL
SANSTL
San Diego
Tue 6/11
1 stop13h 46m
Lambert-St Louis
Thu 6/13
1 stop16h 05m
$125
San DiegoChicago O'Hare Intl
SAN - ORD
SANORD
San Diego
Wed 6/5
1 stop13h 36m
Chicago O'Hare Intl
Tue 6/11
1 stop12h 33m
$126
San DiegoChicago O'Hare Intl
SAN - ORD
SANORD
San Diego
Wed 6/5
1 stop13h 36m
Chicago O'Hare Intl
Wed 6/12
1 stop11h 55m
$127
San DiegoLambert-St Louis
SAN - STL
SANSTL
San Diego
Wed 6/5
1 stop5h 15m
Lambert-St Louis
Thu 6/6
1 stop17h 29m
$128
San DiegoLambert-St Louis
SAN - STL
SANSTL
San Diego
Tue 9/17
1 stop13h 53m
Lambert-St Louis
Sat 9/21
1 stop7h 29m
$129
San DiegoLambert-St Louis
SAN - STL
SANSTL
San Diego
Wed 6/5
1 stop5h 15m
Lambert-St Louis
Wed 6/19
1 stop26h 01m
$130
San DiegoLambert-St Louis
SAN - STL
SANSTL
San Diego
Wed 6/5
1 stop5h 15m
Lambert-St Louis
Sat 6/8
1 stop12h 59m
$136
San DiegoMoline Quad-City
SAN - MLI
SANMLI
San Diego
Sat 8/10
1 stop7h 58m
Moline Quad-City
Sat 8/17
1 stop8h 17m
$227
San DiegoLambert-St Louis
SAN - STL
SANSTL
San Diego
Mon 9/16
1 stop6h 06m
Lambert-St Louis
Sat 9/21
1 stop9h 20m
$236
No data available for this route at this time. Please check back soon.
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 16, 2024.
To help decide which airline to fly from San Diego to Illinois, see what other customers have to say about Spirit Airlines, Frontier and American Airlines. 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.
9,157 reviews
Boarding
8.2
Crew
8.6
Comfort
7.9
Entertainment
7.3
Food
7.3
Overall
8.1
Reviews
1 / 10
Paid a lot for our exit row seats and they weren’t that roomy.
9,157 reviews
9,157 reviews
Boarding
8.2
Crew
8.6
Comfort
7.9
Entertainment
7.3
Food
7.3
Overall
8.1
Reviews
1 / 10
Paid a lot for our exit row seats and they weren’t that roomy.
10,673 reviews
9,157 reviews
Boarding
8.2
Crew
8.6
Comfort
7.9
Entertainment
7.3
Food
7.3
Overall
8.1
Reviews
1 / 10
Paid a lot for our exit row seats and they weren’t that roomy.
2,919 reviews
9,157 reviews
Boarding
8.2
Crew
8.6
Comfort
7.9
Entertainment
7.3
Food
7.3
Overall
8.1
Reviews
1 / 10
Paid a lot for our exit row seats and they weren’t that roomy.
10,924 reviews
9,157 reviews
Boarding
8.2
Crew
8.6
Comfort
7.9
Entertainment
7.3
Food
7.3
Overall
8.1
Reviews
1 / 10
Paid a lot for our exit row seats and they weren’t that roomy.
14,514 reviews
9,157 reviews
Boarding
8.2
Crew
8.6
Comfort
7.9
Entertainment
7.3
Food
7.3
Overall
8.1
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 2,637,452 searches. Data last updated May 16, 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 16, 2024.
| 1%of flight departures | Early morningMidnight to 6 am |
|---|---|
| 55%of flight departures | Morning6 am to noon |
| 22%of flight departures | AfternoonNoon to 6 pm |
| 22%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.