Cheap flights from San Diego (SAN) to Illinois from $46
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. 2 — jun. 91
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.
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 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 2,740,132 searches. Data last updated mayo 28, 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.
mar. 6/1810:52 pmSAN - ORD
Nonstop4h 08mAmerican Airlines
sáb. 6/226:39 pmORD - SAN
Nonstop4h 27mAmerican Airlines
Deal found 5/27$301
lun. 7/17:15 amSAN - STL
1 stop7h 33mAmerican Airlines
jue. 7/47:00 amSTL - SAN
2 stops10h 11mAmerican Airlines
Deal found 5/27$384
jue. 6/271:12 pmSAN - MLI
1 stop6h 19mAmerican Airlines
mié. 7/33:58 pmMLI - SAN
1 stop7h 57mAmerican Airlines
Deal found 5/27$548
jue. 6/271:12 pmSAN - MLI
1 stop6h 19mAmerican Airlines
mié. 7/36:00 amMLI - SAN
2 stops11h 11mAmerican Airlines
Deal found 5/27$553
vie. 8/3011:27 amSAN - BMI
1 stop6h 27mAmerican Airlines
dom. 9/13:00 pmBMI - SAN
1 stop8h 12mAmerican Airlines
Deal found 5/27$623
jue. 7/46:21 amSAN - PIA
1 stop6h 07mAmerican Airlines
dom. 7/73:00 pmPIA - SAN
1 stop8h 17mAmerican Airlines
Deal found 5/27$758
lun. 6/106:21 amSAN - BMI
1 stop6h 28mAmerican Airlines
lun. 6/173:54 pmBMI - SAN
1 stop6h 17mAmerican Airlines
Deal found 5/27$818
lun. 6/106:21 amSAN - BMI
1 stop6h 28mAmerican Airlines
lun. 6/173:54 pmBMI - SAN
2 stops7h 56mAmerican Airlines
Deal found 5/27$823
mar. 6/411:54 amSAN - EVV
1 stop8h 04mAmerican Airlines
sáb. 6/84:28 pmEVV - SAN
1 stop8h 14mAmerican Airlines
Deal found 5/27$865
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 2,740,132 searches. Data last updated mayo 28, 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.
mié. 8/289:00 amSAN - ORD
1 stop12h 58mSpirit Airlines
mar. 9/106:00 amORD - SAN
2 stops19h 31mSpirit Airlines
Deal found 5/27$118
mié. 8/289:00 amSAN - ORD
1 stop12h 58mSpirit Airlines
lun. 9/98:16 pmORD - SAN
2 stops19h 06mSpirit Airlines
Deal found 5/27$122
mié. 8/289:00 amSAN - ORD
1 stop12h 58mSpirit Airlines
mar. 9/107:27 amORD - SAN
3 stops18h 04mSpirit Airlines
Deal found 5/27$126
mié. 8/289:00 amSAN - ORD
1 stop12h 58mSpirit Airlines
mar. 9/101:13 pmORD - SAN
1 stop8h 44mSpirit Airlines
Deal found 5/27$130
vie. 8/2310:35 pmSAN - STL
1 stop15h 06mSpirit Airlines
mar. 8/278:00 amSTL - SAN
1 stop7h 29mSpirit Airlines
Deal found 5/28$132
mié. 8/289:00 amSAN - ORD
1 stop12h 58mSpirit Airlines
mié. 9/46:00 amORD - SAN
2 stops14h 58mSpirit Airlines
Deal found 5/27$142
mié. 8/289:00 amSAN - ORD
1 stop12h 58mSpirit Airlines
lun. 9/96:32 pmORD - SAN
3 stops27h 25mSpirit Airlines
Deal found 5/27$143
mar. 7/168:35 amSAN - ORD
1 stop8h 50mSpirit Airlines
mar. 7/235:10 amORD - SAN
1 stop28h 27mSpirit Airlines
Deal found 5/28$148
mar. 6/49:12 pmSAN - ORD
1 stop22h 05mSpirit Airlines
mar. 6/117:33 amORD - SAN
1 stop25h 51mSpirit Airlines
Deal found 5/27$152
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 2,740,132 searches. Prices were last updated on mayo 28, 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.
mié. 6/122:52 pmSAN - STL
1 stop5h 15mFrontier
sáb. 6/157:29 pmSTL - SAN
1 stop14h 16mFrontier
Deal found 5/27$127
jue. 6/68:01 amSAN - STL
1 stop23h 39mFrontier
mar. 6/117:29 pmSTL - SAN
1 stop25h 54mFrontier
Deal found 5/27$139
sáb. 6/18:21 pmSAN - STL
1 stop11h 52mFrontier
mar. 6/47:23 pmSTL - SAN
1 stop25h 57mFrontier
Deal found 5/27$142
jue. 6/64:52 pmSAN - STL
2 stops27h 07mFrontier
mar. 6/113:47 pmSTL - SAN
1 stop28h 21mFrontier
Deal found 5/27$145
jue. 5/308:21 pmSAN - STL
1 stop11h 52mFrontier
mar. 6/42:12 pmSTL - SAN
1 stop7h 09mFrontier
Deal found 5/27$146
vie. 6/71:57 pmSAN - STL
1 stop17h 32mFrontier
lun. 6/1010:59 pmSTL - SAN
1 stop12h 26mFrontier
Deal found 5/27$150
mar. 6/49:12 pmSAN - ORD
1 stop22h 05mSpirit Airlines
mar. 6/117:33 amORD - SAN
1 stop25h 51mSpirit Airlines
Deal found 5/27$152
vie. 6/71:57 pmSAN - STL
1 stop17h 32mFrontier
lun. 6/108:22 pmSTL - SAN
2 stops25h 02mFrontier
Deal found 5/27$155
mar. 6/118:24 pmSAN - ORD
1 stop7h 01mFrontier
sáb. 6/1510:11 pmORD - SAN
1 stop10h 50mFrontier
Deal found 5/27$156
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 2,740,132 searches. Data last updated mayo 28, 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.
mié. 8/289:00 amSAN - ORD
1 stop12h 58mSpirit Airlines
mar. 9/106:00 amORD - SAN
2 stops19h 31mSpirit Airlines
Deal found 5/27$118
mié. 8/289:00 amSAN - ORD
1 stop12h 58mSpirit Airlines
lun. 9/98:16 pmORD - SAN
2 stops19h 06mSpirit Airlines
Deal found 5/27$122
sáb. 8/243:05 pmSAN - STL
1 stop5h 46mMultiple Airlines
mié. 8/2811:36 amSTL - SAN
1 stop10h 42mMultiple Airlines
Deal found 5/27$122
mié. 8/289:00 amSAN - ORD
1 stop12h 58mSpirit Airlines
mar. 9/107:27 amORD - SAN
3 stops18h 04mSpirit Airlines
Deal found 5/27$126
mié. 6/122:52 pmSAN - STL
1 stop5h 15mFrontier
sáb. 6/157:29 pmSTL - SAN
1 stop14h 16mFrontier
Deal found 5/27$127
mié. 8/289:00 amSAN - ORD
1 stop12h 58mSpirit Airlines
mar. 9/101:13 pmORD - SAN
1 stop8h 44mSpirit Airlines
Deal found 5/27$130
jue. 6/68:01 amSAN - STL
1 stop23h 39mFrontier
mar. 6/117:29 pmSTL - SAN
1 stop25h 54mFrontier
Deal found 5/27$139
mié. 8/289:00 amSAN - ORD
1 stop12h 58mSpirit Airlines
mié. 9/46:00 amORD - SAN
2 stops14h 58mSpirit Airlines
Deal found 5/27$142
sáb. 6/18:21 pmSAN - STL
1 stop11h 52mFrontier
mar. 6/47:23 pmSTL - SAN
1 stop25h 57mFrontier
Deal found 5/27$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 2,740,132 searches. Data last updated mayo 28, 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.
mar. 6/1810:52 pmSAN - ORD
Nonstop4h 08mAmerican Airlines
sáb. 6/226:39 pmORD - SAN
Nonstop4h 27mAmerican Airlines
Deal found 5/27$301
dom. 6/1610:52 pmSAN - ORD
Nonstop4h 08mAmerican Airlines
mar. 6/186:39 pmORD - SAN
Nonstop4h 27mAmerican Airlines
Deal found 5/27$302
lun. 6/2410:52 pmSAN - ORD
Nonstop4h 08mAmerican Airlines
lun. 7/14:51 pmORD - SAN
Nonstop4h 10mAmerican Airlines
Deal found 5/27$321
mar. 6/2510:52 pmSAN - ORD
Nonstop4h 08mAmerican Airlines
mar. 7/26:39 pmORD - SAN
Nonstop4h 27mAmerican Airlines
Deal found 5/27$328
mar. 6/1810:29 pmSAN - ORD
Nonstop4h 11mUnited Airlines
lun. 6/247:18 amORD - SAN
Nonstop4h 18mUnited Airlines
Deal found 5/27$330
vie. 6/2110:52 pmSAN - ORD
Nonstop4h 08mAmerican Airlines
mié. 7/176:49 pmORD - SAN
Nonstop4h 28mAmerican Airlines
Deal found 5/27$334
jue. 6/2710:29 pmSAN - ORD
Nonstop4h 11mUnited Airlines
dom. 6/307:24 amORD - SAN
Nonstop4h 18mUnited Airlines
Deal found 5/27$336
jue. 9/511:26 amSAN - ORD
Nonstop4h 12mAmerican Airlines
sáb. 9/710:12 amORD - SAN
Nonstop4h 24mAmerican Airlines
Deal found 5/26$341
jue. 6/2010:52 pmSAN - ORD
Nonstop4h 08mAmerican Airlines
dom. 6/306:39 pmORD - SAN
Nonstop4h 27mAmerican Airlines
Deal found 5/27$346
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 2,740,132 searches. Data last updated mayo 28, 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.
jue. 6/68:01 amSAN - STL
1 stop23h 39mFrontier
mar. 6/117:29 pmSTL - SAN
1 stop25h 54mFrontier
Deal found 5/27$139
jue. 6/64:52 pmSAN - STL
2 stops27h 07mFrontier
mar. 6/113:47 pmSTL - SAN
1 stop28h 21mFrontier
Deal found 5/27$145
vie. 6/71:57 pmSAN - STL
1 stop17h 32mFrontier
lun. 6/1010:59 pmSTL - SAN
1 stop12h 26mFrontier
Deal found 5/27$150
mar. 6/49:12 pmSAN - ORD
1 stop22h 05mSpirit Airlines
mar. 6/117:33 amORD - SAN
1 stop25h 51mSpirit Airlines
Deal found 5/27$152
vie. 6/71:57 pmSAN - STL
1 stop17h 32mFrontier
lun. 6/108:22 pmSTL - SAN
2 stops25h 02mFrontier
Deal found 5/27$155
mar. 6/1110:14 pmSAN - MDW
1 stop10h 17mFrontier
sáb. 6/155:40 amMDW - SAN
1 stop10h 39mFrontier
Deal found 5/27$156
lun. 6/38:21 pmSAN - ORD
1 stop6h 39mMultiple Airlines
mar. 6/117:33 amORD - SAN
1 stop25h 51mMultiple Airlines
Deal found 5/27$158
mar. 6/1110:14 pmSAN - MDW
1 stop10h 17mFrontier
sáb. 6/155:40 amMDW - SAN
1 stop27h 21mFrontier
Deal found 5/27$158
mar. 6/1111:08 amSAN - MDW
1 stop15h 25mFrontier
sáb. 6/155:40 amMDW - SAN
1 stop10h 39mFrontier
Deal found 5/27$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 2,740,132 searches. Data last updated mayo 28, 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.
mar. 8/279:00 amSAN - ORD
1 stop12h 58mSpirit Airlines
Deal found 5/27$46
mar. 8/279:00 amSAN - ORD
2 stops31h 26mSpirit Airlines
Deal found 5/27$54
mié. 6/52:52 pmSAN - STL
1 stop5h 15mFrontier
Deal found 5/27$57
mié. 6/52:52 pmSAN - STL
1 stop5h 15mFrontier
Deal found 5/27$58
mié. 8/219:00 amSAN - ORD
1 stop12h 58mSpirit Airlines
Deal found 5/27$69
mar. 8/209:00 amSAN - ORD
1 stop12h 58mSpirit Airlines
Deal found 5/27$70
mié. 7/108:35 amSAN - ORD
1 stop8h 50mSpirit Airlines
Deal found 5/27$72
mar. 7/28:29 amSAN - ORD
1 stop13h 21mSpirit Airlines
Deal found 5/27$73
mié. 6/192:52 pmSAN - STL
1 stop5h 15mFrontier
Deal found 5/26$73
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 2,740,132 searches. Data last updated mayo 28, 2024.
Fly from
Any airport
Fly to
Any airport
Budget
$118 - $301
Route
Depart
Return
Price
San DiegoChicago O'Hare Intl
SAN - ORD
SANORD
San Diego
mié. 8/28
1 stop12h 58m
Chicago O'Hare Intl
mar. 9/10
2 stops19h 31m
$118
San DiegoLambert-St Louis
SAN - STL
SANSTL
San Diego
sáb. 8/24
1 stop5h 46m
Lambert-St Louis
mié. 8/28
1 stop10h 42m
$122
San DiegoChicago O'Hare Intl
SAN - ORD
SANORD
San Diego
mié. 8/28
1 stop12h 58m
Chicago O'Hare Intl
lun. 9/9
2 stops19h 06m
$122
San DiegoChicago O'Hare Intl
SAN - ORD
SANORD
San Diego
mié. 8/28
1 stop12h 58m
Chicago O'Hare Intl
mar. 9/10
3 stops18h 04m
$126
San DiegoLambert-St Louis
SAN - STL
SANSTL
San Diego
mié. 6/12
1 stop5h 15m
Lambert-St Louis
sáb. 6/15
1 stop14h 16m
$127
San DiegoLambert-St Louis
SAN - STL
SANSTL
San Diego
dom. 6/9
2 stops23h 35m
Lambert-St Louis
mié. 6/12
1 stop10h 32m
$129
San DiegoLambert-St Louis
SAN - STL
SANSTL
San Diego
mié. 8/21
1 stop11h 37m
Lambert-St Louis
mar. 8/27
1 stop9h 52m
$140
San DiegoLambert-St Louis
SAN - STL
SANSTL
San Diego
dom. 8/25
1 stop5h 28m
Lambert-St Louis
mar. 8/27
1 stop7h 20m
$246
San DiegoChicago O'Hare Intl
SAN - ORD
SANORD
San Diego
mar. 6/18
Nonstop4h 08m
Chicago O'Hare Intl
sáb. 6/22
Nonstop4h 27m
$301
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 mayo 28, 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.
9,194 reviews
Boarding
8.2
Food
7.3
Overall
8.1
Comfort
7.9
Crew
8.6
Entertainment
7.3
Reviews
1 / 10
Paid a lot for our exit row seats and they weren’t that roomy.
9,194 reviews
9,194 reviews
Boarding
8.2
Food
7.3
Overall
8.1
Comfort
7.9
Crew
8.6
Entertainment
7.3
Reviews
1 / 10
Paid a lot for our exit row seats and they weren’t that roomy.
10,476 reviews
9,194 reviews
Boarding
8.2
Food
7.3
Overall
8.1
Comfort
7.9
Crew
8.6
Entertainment
7.3
Reviews
1 / 10
Paid a lot for our exit row seats and they weren’t that roomy.
2,871 reviews
9,194 reviews
Boarding
8.2
Food
7.3
Overall
8.1
Comfort
7.9
Crew
8.6
Entertainment
7.3
Reviews
1 / 10
Paid a lot for our exit row seats and they weren’t that roomy.
10,799 reviews
9,194 reviews
Boarding
8.2
Food
7.3
Overall
8.1
Comfort
7.9
Crew
8.6
Entertainment
7.3
Reviews
1 / 10
Paid a lot for our exit row seats and they weren’t that roomy.
14,316 reviews
9,194 reviews
Boarding
8.2
Food
7.3
Overall
8.1
Comfort
7.9
Crew
8.6
Entertainment
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 2,740,132 searches. Data last updated mayo 28, 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 mayo 28, 2024.
| 1%of flight departures | Early morningMidnight to 6 am |
|---|---|
| 60%of flight departures | Morning6 am to noon |
| 22%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
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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.