$540+ Cheap flights from San Diego to Champaign (SAN - CMI)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/27. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — CMI
Nov 25 — Dec 21
Round-trip
1 adult, Economy
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Find cheap flights from San Diego to Champaign with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from San Diego to Champaign
Cheapest
Best
Last-minute
One-way
Cheapest flights from San Diego to ChampaignExplore the most affordable flight options available from San Diego to Champaign. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 26, 2026.
Explore the most affordable flight options available from San Diego to Champaign. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 26, 2026.
This American Airlines deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/47:41 am -
1 stop8h 37m
Mon 11/92:32 pm -
1 stop9h 18m
Deal found 10/22![American Airlines logo]()
$570
This American Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/57:41 am -
1 stop8h 37m
Mon 11/97:11 am -
1 stop9h 12m
Deal found 10/21![American Airlines logo]()
$624
This American Airlines deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/1910:33 pm -
1 stop10h 22m
Wed 12/236:43 pm -
1 stop6h 53m
Deal found 10/25![American Airlines logo]()
$661
This American Airlines deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/189:20 pm -
2 stops11h 35m
Thu 12/247:00 am -
1 stop9h 21m
Deal found 10/25![American Airlines logo]()
$719
This American Airlines deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/199:35 am -
2 stops9h 26m
Thu 12/247:00 am -
1 stop9h 21m
Deal found 10/25![American Airlines logo]()
$835
Best flights from San Diego to ChampaignDiscover carefully curated flight deals from San Diego to Champaign that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 26, 2026.
Discover carefully curated flight deals from San Diego to Champaign that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 26, 2026.
This American Airlines deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/47:41 am -
1 stop8h 37m
Mon 11/92:32 pm -
1 stop9h 18m
Deal found 10/24![American Airlines logo]()
$570
This American Airlines deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/187:21 am -
1 stop8h 49m
Thu 12/247:00 am -
1 stop9h 21m
Deal found 10/25![American Airlines logo]()
$624
This American Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/57:41 am -
1 stop8h 37m
Mon 11/97:11 am -
1 stop9h 12m
Deal found 10/21![American Airlines logo]()
$624
This American Airlines deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/76:25 am -
2 stops9h 53m
Thu 11/1212:13 pm -
1 stop9h 02m
Deal found 10/24![American Airlines logo]()
$670
This American Airlines deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/199:35 am -
2 stops9h 26m
Wed 12/236:43 pm -
1 stop6h 53m
Deal found 10/25![American Airlines logo]()
$725
Last-minute flights from San Diego to ChampaignDiscover last-minute flight deals from San Diego to Champaign. Data last updated October 26, 2026 and is based on user searches.
Discover last-minute flight deals from San Diego to Champaign. Data last updated October 26, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/47:41 am -
1 stop8h 37m
Mon 11/92:32 pm -
1 stop9h 18m
Deal found 10/22![American Airlines logo]()
$570
This American Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/87:41 am -
1 stop8h 37m
Thu 11/122:32 pm -
1 stop8h 03m
Deal found 10/21![American Airlines logo]()
$1,010
One-way flights from San Diego to ChampaignSearch for one-way flight options from San Diego to Champaign. Find affordable one-way fares based on user searches. Data last updated October 26, 2026.
Search for one-way flight options from San Diego to Champaign. Find affordable one-way fares based on user searches. Data last updated October 26, 2026.
This American Airlines deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2711:13 am -
1 stop8h 49m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/24![American Airlines logo]()
$540
This American Airlines deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/2811:44 am -
1 stop6h 34m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/24![American Airlines logo]()
$821
Find flight deals from San Diego to Champaign
Discover tips and strategies to find the most affordable flight options for your journey from San Diego (SAN) to Champaign (CMI). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 26, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $542 (American Airlines) |
One-way from | $540 (American Airlines) |
Cheapflights Fare Finder
Customize your flight search to find flights from San Diego to Champaign 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 7,457,451 searches. Data last updated October 26, 2026.
Use the filters below to find and compare flights from San Diego to Champaign that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
San DiegoChampaign
SAN San Diego - CMI Champaign University-Willard
SANCMI
San Diego
Fri 11/27
11:13 am-10:02 pm
1 stop8h 49m
Champaign University-Willard
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$540
San DiegoChampaign
SAN San Diego - CMI Champaign University-Willard
SANCMI
San Diego
Wed 11/4
7:41 am-6:18 pm
1 stop8h 37m
Champaign University-Willard
Mon 11/9
2:32 pm-9:50 pm
1 stop9h 18m
$570
San DiegoChampaign
SAN San Diego - CMI Champaign University-Willard
SANCMI
San Diego
Fri 12/18
7:21 am-6:10 pm
1 stop8h 49m
Champaign University-Willard
Thu 12/24
7:00 am-2:21 pm
1 stop9h 21m
$624
San DiegoChampaign
SAN San Diego - CMI Champaign University-Willard
SANCMI
San Diego
Thu 11/5
7:41 am-6:18 pm
1 stop8h 37m
Champaign University-Willard
Mon 11/9
7:11 am-2:23 pm
1 stop9h 12m
$624
San DiegoChampaign
SAN San Diego - CMI Champaign University-Willard
SANCMI
San Diego
Sat 11/7
6:25 am-6:18 pm
2 stops9h 53m
Champaign University-Willard
Thu 11/12
12:13 pm-7:15 pm
1 stop9h 02m
$670
San DiegoChampaign
SAN San Diego - CMI Champaign University-Willard
SANCMI
San Diego
Sat 12/19
9:35 am-9:01 pm
2 stops9h 26m
Champaign University-Willard
Wed 12/23
6:43 pm-11:36 pm
1 stop6h 53m
$725
Quickest round-trip
San DiegoChampaign
SAN San Diego - CMI Champaign University-Willard
SANCMI
San Diego
Sat 11/28
11:44 am-8:18 pm
1 stop6h 34m
Champaign University-Willard
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$821
Sorted by cheapest first
Compare providers for flights from San Diego to Champaign
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Diego to Champaign in October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on San Diego-Champaign flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Diego-Champaign flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Diego-Champaign flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on San Diego-Champaign flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Diego-Champaign flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from San Diego to Champaign
Have a flexible travel schedule? Discover the best time to fly to Champaign from San Diego with our price prediction graph.
SAN-CMI
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 Champaign
Get insights into the airlines that provide service to Champaign. 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 Champaign. Reviews last updated October 26, 2026.
Get a feel of what it's like to fly with American Airlines from San Diego to Champaign by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.1
Entertainment
6.8
Food
6.4
Overall
7.0
Boarding
7.4
Crew
7.9
Reviews
1 / 20
2.0
MediocreJeremy,Sep 2025
SAN - PHL
Comfort
7.1
Entertainment
6.8
Food
6.4
Overall
7.0
Boarding
7.4
Crew
7.9
Reviews
1 / 20
2.0
MediocreJeremy,Sep 2025
SAN - PHL
Related info for your journey
Find useful and relevant information for your journey from San Diego to Champaign. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Champaign?
Book flights to Champaign if you plan to visit one of these locationsUrbana
Danville
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Explore flights to Champaign departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 26, 2026.
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San Diego and Champaign flights
Browse other San Diego and Champaign flight options. Last updated on October 26, 2026.
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Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top airline flying from San Diego to Champaign
Discover the top airline that operate flights from San Diego to Champaign. 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 7,457,451 searches. Data last updated October 26, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$338 | Average$520 | FlexibilityNo cancel fee | On-time71% |