$338+ Cheap flights from Champaign to San Francisco (CMI - SFO)
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 11/6. Fares are subject to change and may not be available on all flights or dates of travel.
CMI — SFO
Jul 1 — Jul 81
Round-trip
1 adult, Economy
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Find cheap flights from Champaign to San Francisco 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 Champaign to San Francisco
Cheapest
Best
Last-minute
One-way
Cheapest flights from Champaign to San FranciscoExplore the most affordable flight options available from Champaign to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 1, 2026.
Explore the most affordable flight options available from Champaign to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 1, 2026.
This United Airlines deal was found by Cheapflights users on 6/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/61:32 pm
CMI
- SFO
1 stop7h 41m
United Airlines
Mon 11/910:50 pm
SFO
- CMI
1 stop8h 04m
United Airlines
Deal found 6/1![United Airlines logo]()
$338
This American Airlines deal was found by Cheapflights users on 6/1. 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 7/16:43 pm
CMI
- SFO
1 stop7h 15m
American Airlines
Tue 7/75:29 am
SFO
- CMI
1 stop6h 47m
American Airlines
Deal found 6/1![American Airlines logo]()
$400
This United Airlines deal was found by Cheapflights users on 5/31. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/111:32 pm
CMI
- SFO
1 stop7h 41m
United Airlines
Sat 11/1411:50 pm
SFO
- CMI
1 stop7h 04m
United Airlines
Deal found 5/31![United Airlines logo]()
$438
This American Airlines deal was found by Cheapflights users on 5/28. 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 7/22:46 pm
CMI
- SFO
1 stop9h 42m
American Airlines
Wed 7/155:29 am
SFO
- CMI
1 stop6h 47m
American Airlines
Deal found 5/28![American Airlines logo]()
$464
This American Airlines deal was found by Cheapflights users on 5/29. 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 9/301:23 pm
CMI
- SFO
1 stop6h 46m
American Airlines
Sat 10/37:00 am
SFO
- CMI
1 stop9h 10m
American Airlines
Deal found 5/29![American Airlines logo]()
$510
This American Airlines deal was found by Cheapflights users on 5/29. 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 6/132:46 pm
CMI
- SFO
1 stop9h 52m
American Airlines
Wed 6/1711:25 am
SFO
- CMI
1 stop8h 36m
American Airlines
Deal found 5/29![American Airlines logo]()
$561
This American Airlines deal was found by Cheapflights users on 5/29. 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 9/307:05 am
CMI
- SFO
1 stop9h 55m
American Airlines
Sun 10/45:30 am
SFO
- CMI
1 stop6h 41m
American Airlines
Deal found 5/29![American Airlines logo]()
$574
Best flights from Champaign to San FranciscoDiscover carefully curated flight deals from Champaign to San Francisco that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 1, 2026.
Discover carefully curated flight deals from Champaign to San Francisco that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 1, 2026.
This United Airlines deal was found by Cheapflights users on 6/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/61:32 pm
CMI
- SFO
1 stop7h 41m
United Airlines
Mon 11/910:50 pm
SFO
- CMI
1 stop8h 04m
United Airlines
Deal found 6/1![United Airlines logo]()
$338
This American Airlines deal was found by Cheapflights users on 6/1. 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 7/16:43 pm
CMI
- SFO
1 stop7h 15m
American Airlines
Tue 7/75:29 am
SFO
- CMI
1 stop6h 47m
American Airlines
Deal found 6/1![American Airlines logo]()
$400
This American Airlines deal was found by Cheapflights users on 5/28. 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 7/22:46 pm
CMI
- SFO
1 stop9h 42m
American Airlines
Wed 7/155:29 am
SFO
- CMI
1 stop6h 47m
American Airlines
Deal found 5/28![American Airlines logo]()
$464
This United Airlines deal was found by Cheapflights users on 5/31. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/116:30 am
CMI
- SFO
2 stops15h 31m
United Airlines
Sat 11/1411:50 pm
SFO
- CMI
1 stop7h 04m
United Airlines
Deal found 5/31![United Airlines logo]()
$534
This American Airlines deal was found by Cheapflights users on 5/29. 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 10/12:41 pm
CMI
- SFO
1 stop8h 09m
American Airlines
Sat 10/37:00 am
SFO
- CMI
1 stop9h 10m
American Airlines
Deal found 5/29![American Airlines logo]()
$574
This American Airlines deal was found by Cheapflights users on 5/29. 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 10/22:41 pm
CMI
- SFO
1 stop8h 09m
American Airlines
Sat 10/35:30 am
SFO
- CMI
1 stop6h 40m
American Airlines
Deal found 5/29![American Airlines logo]()
$574
This American Airlines deal was found by Cheapflights users on 5/29. 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 9/307:05 am
CMI
- SFO
1 stop9h 55m
American Airlines
Sun 10/45:30 am
SFO
- CMI
1 stop6h 41m
American Airlines
Deal found 5/29![American Airlines logo]()
$574
This American Airlines deal was found by Cheapflights users on 5/29. 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 9/307:05 am
CMI
- SFO
2 stops10h 31m
American Airlines
Sat 10/35:30 am
SFO
- CMI
1 stop6h 40m
American Airlines
Deal found 5/29![American Airlines logo]()
$581
This American Airlines deal was found by Cheapflights users on 6/1. 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 11/611:20 am
CMI
- SFO
2 stops10h 54m
American Airlines
Mon 11/97:14 am
SFO
- CMI
2 stops10h 11m
American Airlines
Deal found 6/1![American Airlines logo]()
$701
Last-minute flights from Champaign to San FranciscoDiscover last-minute flight deals from Champaign to San Francisco. Data last updated June 1, 2026 and is based on user searches.
Discover last-minute flight deals from Champaign to San Francisco. Data last updated June 1, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 5/29. 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 6/132:46 pm
CMI
- SFO
1 stop9h 52m
American Airlines
Wed 6/1711:25 am
SFO
- CMI
1 stop8h 36m
American Airlines
Deal found 5/29![American Airlines logo]()
$561
This American Airlines deal was found by Cheapflights users on 5/30. 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 6/146:12 am
CMI
- SFO
1 stop7h 08m
American Airlines
Thu 6/185:23 am
SFO
- CMI
1 stop6h 52m
American Airlines
Deal found 5/30![American Airlines logo]()
$956
This American Airlines deal was found by Cheapflights users on 5/31. 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.
Mon 6/157:31 am
CMI
- SFO
2 stops10h 35m
American Airlines
Fri 6/1912:36 pm
SFO
- CMI
1 stop7h 25m
American Airlines
Deal found 5/31![American Airlines logo]()
$942
This American Airlines deal was found by Cheapflights users on 6/1. 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 7/16:43 pm
CMI
- SFO
1 stop7h 15m
American Airlines
Tue 7/75:29 am
SFO
- CMI
1 stop6h 47m
American Airlines
Deal found 6/1![American Airlines logo]()
$400
This American Airlines deal was found by Cheapflights users on 5/28. 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 7/22:46 pm
CMI
- SFO
1 stop9h 42m
American Airlines
Wed 7/155:29 am
SFO
- CMI
1 stop6h 47m
American Airlines
Deal found 5/28![American Airlines logo]()
$464
This American Airlines deal was found by Cheapflights users on 5/29. 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.
Mon 7/132:46 pm
CMI
- SFO
1 stop8h 24m
American Airlines
Mon 7/205:29 am
SFO
- CMI
1 stop6h 47m
American Airlines
Deal found 5/29![American Airlines logo]()
$953
One-way flights from Champaign to San FranciscoSearch for one-way flight options from Champaign to San Francisco. Find affordable one-way fares based on user searches. Data last updated June 1, 2026.
Search for one-way flight options from Champaign to San Francisco. Find affordable one-way fares based on user searches. Data last updated June 1, 2026.
This American Airlines deal was found by Cheapflights users on 5/31. 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.
Tue 8/116:05 am
CMI
- SFO
1 stop19h 40m
American Airlines
Deal found 5/31![American Airlines logo]()
$398
This American Airlines deal was found by Cheapflights users on 5/27. 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 6/196:12 am
CMI
- SFO
1 stop7h 08m
American Airlines
Deal found 5/27![American Airlines logo]()
$458
Find flight deals from Champaign to San Francisco
Discover tips and strategies to find the most affordable flight options for your journey from Champaign (CMI) to San Francisco (SFO). 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 June 1, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $400 (American Airlines) |
One-way from | $398 (American Airlines) |
Popular in | November |
Cheapest in | May |
Average price | $442 |
Cheapflights Fare Finder
Customize your flight search to find flights from Champaign to San Francisco 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 2,558,603 searches. Data last updated June 1, 2026.
Use the filters below to find and compare flights from Champaign to San Francisco that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
ChampaignSan Francisco
CMI - SFO
CMISFO
Champaign University-Willard
Fri 11/6
1:32 pm-7:13 pm
1 stop7h 41m
San Francisco
Mon 11/9
10:50 pm-8:54 am
1 stop8h 04m
$338
Quickest round-trip
ChampaignSan Francisco
CMI - SFO
CMISFO
Champaign University-Willard
Wed 7/1
6:43 pm-11:58 pm
1 stop7h 15m
San Francisco
Tue 7/7
5:29 am-2:16 pm
1 stop6h 47m
$400
ChampaignSan Francisco
CMI - SFO
CMISFO
Champaign University-Willard
Thu 7/2
2:46 pm-10:28 pm
1 stop9h 42m
San Francisco
Wed 7/15
5:29 am-2:16 pm
1 stop6h 47m
$464
ChampaignSan Francisco
CMI - SFO
CMISFO
Champaign University-Willard
Wed 11/11
6:30 am-8:01 pm
2 stops15h 31m
San Francisco
Sat 11/14
11:50 pm-8:54 am
1 stop7h 04m
$534
ChampaignSan Francisco
CMI - SFO
CMISFO
Champaign University-Willard
Thu 10/1
2:41 pm-8:50 pm
1 stop8h 09m
San Francisco
Sat 10/3
7:00 am-6:10 pm
1 stop9h 10m
$574
ChampaignSan Francisco
CMI - SFO
CMISFO
Champaign University-Willard
Fri 10/2
2:41 pm-8:50 pm
1 stop8h 09m
San Francisco
Sat 10/3
5:30 am-2:10 pm
1 stop6h 40m
$574
ChampaignSan Francisco
CMI - SFO
CMISFO
Champaign University-Willard
Wed 9/30
7:05 am-3:00 pm
1 stop9h 55m
San Francisco
Sun 10/4
5:30 am-2:11 pm
1 stop6h 41m
$574
ChampaignSan Francisco
CMI - SFO
CMISFO
Champaign University-Willard
Wed 9/30
7:05 am-3:36 pm
2 stops10h 31m
San Francisco
Sat 10/3
5:30 am-2:10 pm
1 stop6h 40m
$581
ChampaignSan Francisco
CMI - SFO
CMISFO
Champaign University-Willard
Fri 11/6
11:20 am-8:14 pm
2 stops10h 54m
San Francisco
Mon 11/9
7:14 am-7:25 pm
2 stops10h 11m
$701
Cheapest one-way
ChampaignSan Francisco
CMI - SFO
CMISFO
Champaign University-Willard
Tue 8/11
6:05 am-11:45 pm
1 stop19h 40m
$398
Showing 1-10 of 11 resultsSorted by cheapest first
Compare providers for flights from Champaign to San Francisco
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 Champaign to San Francisco in June.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Champaign-San Francisco flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Champaign-San Francisco flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Champaign-San Francisco flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Champaign-San Francisco 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 Champaign-San Francisco 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 Champaign to San Francisco
Have a flexible travel schedule? Discover the best time to fly to San Francisco from Champaign with our price prediction graph.
CMI-SFO
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.
Cheapflights Insights
Everything you need to know about your flight from Champaign to San Francisco
Reviews of airlines servicing San Francisco
Get insights into the airlines that provide service to San Francisco. 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 San Francisco. Reviews last updated June 1, 2026.
Get a feel of what it's like to fly with American Airlines from Champaign to San Francisco by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.2
Overall
7.1
Entertainment
6.9
Crew
7.9
Food
6.4
Boarding
7.5
Reviews
1 / 20
4.0
OkayElizabeth,Mar 2026
ORD - MIA
Comfort
7.2
Overall
7.1
Entertainment
6.9
Crew
7.9
Food
6.4
Boarding
7.5
Reviews
1 / 20
4.0
OkayElizabeth,Mar 2026
ORD - MIA
Related info for your journey
Find useful and relevant information for your journey from Champaign to San Francisco. 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 San Francisco?
Book flights to San Francisco if you plan to visit one of these locationsSouth San Francisco
Santa Cruz
Santa Clara
Fairfield
Rancho Cordova
Cupertino
San Bruno
Watsonville
San Ramon
Vacaville
Roseville
San Carlos
Redwood City
Daly City
Sunnyvale
Turlock
Vallejo
San Lorenzo
Davis
Emeryville
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Champaign and San Francisco flights
Browse other Champaign and San Francisco flight options. Last updated on June 1, 2026.
Other flights from Champaign
Browse through other flights departing from Champaign. Flights are based on user searches made on Cheapflights and were last updated on June 1, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to San Francisco
Explore flights to San Francisco departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on June 1, 2026.
Top airline flying from Champaign to San Francisco
Discover the top airline that operate flights from Champaign to San Francisco. 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 2,558,603 searches. Data last updated June 1, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$338 | Average$478 | FlexibilityNo cancel fee | On-time71% |