$433+ Cheap flights from Champaign to San Francisco (CMI - SFO)
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 7/22. Fares are subject to change and may not be available on all flights or dates of travel.
CMI — SFO
Aug 16 — Aug 231
Round-trip
1 adult, Economy
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Find cheap flights from Champaign to San Francisco with Cheapflights
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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
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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
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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 July 17, 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 July 17, 2026.
This United Airlines deal was found by Cheapflights users on 7/15. 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.
Sat 10/316:30 am
CMI
- SFO
1 stop8h 41m
United Airlines
Tue 11/36:35 am
SFO
- CMI
1 stop8h 53m
United Airlines
Deal found 7/15![United Airlines logo]()
$438
This American Airlines deal was found by Cheapflights users on 7/12. 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 8/122:47 pm
CMI
- SFO
1 stop9h 31m
American Airlines
Sun 8/165:30 am
SFO
- CMI
1 stop6h 45m
American Airlines
Deal found 7/12![American Airlines logo]()
$464
This American Airlines deal was found by Cheapflights users on 7/13. 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 8/137:00 am
CMI
- SFO
1 stop8h 11m
American Airlines
Mon 8/175:30 am
SFO
- CMI
1 stop6h 45m
American Airlines
Deal found 7/13![American Airlines logo]()
$528
This United Airlines deal was found by Cheapflights users on 7/15. 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 11/201:32 pm
CMI
- SFO
1 stop7h 14m
United Airlines
Wed 12/22:00 pm
SFO
- CMI
1 stop6h 22m
United Airlines
Deal found 7/15![United Airlines logo]()
$534
This American Airlines deal was found by Cheapflights users on 7/14. 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 7/252:46 pm
CMI
- SFO
1 stop6h 53m
American Airlines
Wed 7/298:15 am
SFO
- CMI
2 stops11h 44m
American Airlines
Deal found 7/14![American Airlines logo]()
$536
This American Airlines deal was found by Cheapflights users on 7/13. 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 8/87:00 am
CMI
- SFO
1 stop9h 54m
American Airlines
Fri 8/1412:38 pm
SFO
- CMI
1 stop7h 22m
American Airlines
Deal found 7/13![American Airlines logo]()
$550
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 July 17, 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 July 17, 2026.
This United Airlines deal was found by Cheapflights users on 7/15. 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.
Sat 10/316:30 am
CMI
- SFO
1 stop8h 41m
United Airlines
Tue 11/36:35 am
SFO
- CMI
1 stop8h 53m
United Airlines
Deal found 7/15![United Airlines logo]()
$438
This American Airlines deal was found by Cheapflights users on 7/13. 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 8/126:00 am
CMI
- SFO
1 stop7h 26m
American Airlines
Sun 8/165:30 am
SFO
- CMI
1 stop6h 45m
American Airlines
Deal found 7/13![American Airlines logo]()
$464
This American Airlines deal was found by Cheapflights users on 7/16. 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 8/217:00 am
CMI
- SFO
1 stop8h 18m
American Airlines
Mon 8/245:30 am
SFO
- CMI
1 stop6h 45m
American Airlines
Deal found 7/16![American Airlines logo]()
$528
This American Airlines deal was found by Cheapflights users on 7/14. 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 8/52:47 pm
CMI
- SFO
1 stop9h 31m
American Airlines
Sun 8/95:30 am
SFO
- CMI
1 stop6h 45m
American Airlines
Deal found 7/14![American Airlines logo]()
$550
This American Airlines deal was found by Cheapflights users on 7/13. 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 8/87:00 am
CMI
- SFO
1 stop9h 54m
American Airlines
Fri 8/1412:38 pm
SFO
- CMI
1 stop7h 22m
American Airlines
Deal found 7/13![American Airlines logo]()
$550
This American Airlines deal was found by Cheapflights users on 7/14. 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 7/292:46 pm
CMI
- SFO
2 stops9h 37m
American Airlines
Mon 8/311:24 am
SFO
- CMI
1 stop8h 35m
American Airlines
Deal found 7/14![American Airlines logo]()
$581
Last-minute flights from Champaign to San FranciscoDiscover last-minute flight deals from Champaign to San Francisco. Data last updated July 17, 2026 and is based on user searches.
Discover last-minute flight deals from Champaign to San Francisco. Data last updated July 17, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 7/14. 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 7/252:46 pm
CMI
- SFO
1 stop6h 53m
American Airlines
Wed 7/298:15 am
SFO
- CMI
2 stops11h 44m
American Airlines
Deal found 7/14![American Airlines logo]()
$536
This American Airlines deal was found by Cheapflights users on 7/14. 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 7/252:46 pm
CMI
- SFO
1 stop6h 53m
American Airlines
Tue 7/288:15 am
SFO
- CMI
2 stops10h 47m
American Airlines
Deal found 7/14![American Airlines logo]()
$592
This American Airlines deal was found by Cheapflights users on 7/13. 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 8/87:00 am
CMI
- SFO
1 stop9h 54m
American Airlines
Fri 8/1412:38 pm
SFO
- CMI
1 stop7h 22m
American Airlines
Deal found 7/13![American Airlines logo]()
$550
This American Airlines deal was found by Cheapflights users on 7/12. 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 8/122:47 pm
CMI
- SFO
1 stop9h 31m
American Airlines
Sun 8/165:30 am
SFO
- CMI
1 stop6h 45m
American Airlines
Deal found 7/12![American Airlines logo]()
$464
This American Airlines deal was found by Cheapflights users on 7/13. 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 8/137:00 am
CMI
- SFO
1 stop8h 11m
American Airlines
Mon 8/175:30 am
SFO
- CMI
1 stop6h 45m
American Airlines
Deal found 7/13![American Airlines logo]()
$528
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 July 17, 2026.
Search for one-way flight options from Champaign to San Francisco. Find affordable one-way fares based on user searches. Data last updated July 17, 2026.
This American Airlines deal was found by Cheapflights users on 7/13. 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 7/227:24 am
CMI
- SFO
1 stop9h 34m
American Airlines
Deal found 7/13![American Airlines logo]()
$433
This American Airlines deal was found by Cheapflights users on 7/13. 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 8/32:46 pm
CMI
- SFO
1 stop9h 42m
American Airlines
Deal found 7/13![American Airlines logo]()
$458
This American Airlines deal was found by Cheapflights users on 7/12. 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 7/267:29 am
CMI
- SFO
1 stop9h 29m
American Airlines
Deal found 7/12![American Airlines logo]()
$478
This American Airlines deal was found by Cheapflights users on 7/13. 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 8/22:46 pm
CMI
- SFO
1 stop8h 24m
American Airlines
Deal found 7/13![American Airlines logo]()
$516
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 July 17, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $438 (United Airlines) |
One-way from | $433 (American Airlines) |
Popular in | November |
Cheapest in | May |
Average price | $533 |
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 July 17, 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
Sat 10/31
6:30 am-1:11 pm
1 stop8h 41m
San Francisco
Tue 11/3
6:35 am-5:28 pm
1 stop8h 53m
$438
Quickest round-trip
ChampaignSan Francisco
CMI - SFO
CMISFO
Champaign University-Willard
Wed 8/12
6:00 am-11:26 am
1 stop7h 26m
San Francisco
Sun 8/16
5:30 am-2:15 pm
1 stop6h 45m
$464
ChampaignSan Francisco
CMI - SFO
CMISFO
Champaign University-Willard
Fri 8/21
7:00 am-1:18 pm
1 stop8h 18m
San Francisco
Mon 8/24
5:30 am-2:15 pm
1 stop6h 45m
$528
ChampaignSan Francisco
CMI - SFO
CMISFO
Champaign University-Willard
Wed 8/5
2:47 pm-10:18 pm
1 stop9h 31m
San Francisco
Sun 8/9
5:30 am-2:15 pm
1 stop6h 45m
$550
ChampaignSan Francisco
CMI - SFO
CMISFO
Champaign University-Willard
Sat 8/8
7:00 am-2:54 pm
1 stop9h 54m
San Francisco
Fri 8/14
12:38 pm-10:00 pm
1 stop7h 22m
$550
ChampaignSan Francisco
CMI - SFO
CMISFO
Champaign University-Willard
Wed 7/29
2:46 pm-10:23 pm
2 stops9h 37m
San Francisco
Mon 8/3
11:24 am-9:59 pm
1 stop8h 35m
$581
Cheapest one-way
ChampaignSan Francisco
CMI - SFO
CMISFO
Champaign University-Willard
Wed 7/22
7:24 am-2:58 pm
1 stop9h 34m
$433
ChampaignSan Francisco
CMI - SFO
CMISFO
Champaign University-Willard
Tue 8/4
2:46 pm-10:23 pm
2 stops9h 37m
$439
ChampaignSan Francisco
CMI - SFO
CMISFO
Champaign University-Willard
Mon 8/3
2:46 pm-10:28 pm
1 stop9h 42m
$458
Quickest one-way
ChampaignSan Francisco
CMI - SFO
CMISFO
Champaign University-Willard
Fri 8/21
7:00 am-1:18 pm
1 stop8h 18m
$458
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 July.
| 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 July 17, 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.
Food
6.4
Comfort
7.2
Entertainment
6.8
Boarding
7.5
Overall
7.1
Crew
7.9
Reviews
1 / 20
2.0
MediocreAnonymous,Mar 2026
MIA - SFO
Food
6.4
Comfort
7.2
Entertainment
6.8
Boarding
7.5
Overall
7.1
Crew
7.9
Reviews
1 / 20
2.0
MediocreAnonymous,Mar 2026
MIA - SFO
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 Clara
Santa Cruz
Fairfield
Burlingame
Rancho Cordova
Roseville
Cupertino
Emeryville
Newark
Watsonville
San Bruno
Hayward
San Ramon
Redwood City
San Carlos
Turlock
Vallejo
San Lorenzo
Davis
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Champaign and San Francisco flights
Browse other Champaign and San Francisco flight options. Last updated on July 17, 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 July 17, 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 July 17, 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 July 17, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$338 | Average$521 | FlexibilityNo cancel fee | On-time71% |