$393+ 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 12/16. Fares are subject to change and may not be available on all flights or dates of travel.
CMI — SFO
Nov 18 — Nov 251
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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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 October 19, 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 October 19, 2026.
This American Airlines deal was found by Cheapflights users on 10/16. 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.
Wed 12/25:59 am -
1 stop7h 18m
Sat 12/58:55 am -
1 stop9h 30m
Deal found 10/16![American Airlines logo]()
$452
This American Airlines deal was found by Cheapflights users on 10/14. 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 11/217:01 pm -
1 stop7h 15m
Mon 11/238:47 am -
1 stop9h 31m
Deal found 10/14![American Airlines logo]()
$497
This American Airlines deal was found by Cheapflights users on 10/16. 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.
Sat 10/312:37 pm -
1 stop8h 30m
Wed 11/47:13 am -
1 stop9h 05m
Deal found 10/16![American Airlines logo]()
$516
This American Airlines deal was found by Cheapflights users on 10/16. 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.
Thu 11/197:01 pm -
1 stop7h 15m
Thu 11/266:00 am -
1 stop6h 52m
Deal found 10/16![American Airlines logo]()
$542
This American Airlines deal was found by Cheapflights users on 10/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/217:01 pm -
1 stop7h 15m
Fri 11/278:47 am -
1 stop9h 31m
Deal found 10/15![American Airlines logo]()
$561
This American Airlines deal was found by Cheapflights users on 10/16. 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.
Wed 10/286:00 am -
1 stop7h 25m
Sun 11/15:35 am -
1 stop6h 27m
Deal found 10/16![American Airlines logo]()
$570
This American Airlines deal was found by Cheapflights users on 10/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1912:14 pm -
1 stop9h 46m
Fri 11/278:47 am -
1 stop9h 31m
Deal found 10/15![American Airlines logo]()
$583
This American Airlines deal was found by Cheapflights users on 10/16. 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.
Thu 12/176:43 pm -
1 stop7h 26m
Sun 12/279:09 am -
1 stop7h 01m
Deal found 10/16![American Airlines logo]()
$592
This American Airlines deal was found by Cheapflights users on 10/16. 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 10/302:37 pm -
1 stop8h 30m
Mon 11/25:35 am -
1 stop6h 27m
Deal found 10/16![American Airlines logo]()
$624
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 October 19, 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 October 19, 2026.
This American Airlines deal was found by Cheapflights users on 10/17. 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 12/112:32 pm -
1 stop8h 34m
Mon 1/1811:45 pm -
1 stop9h 26m
Deal found 10/17![American Airlines logo]()
$542
This American Airlines deal was found by Cheapflights users on 10/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/307:03 pm -
1 stop7h 27m
Tue 11/38:47 am -
1 stop9h 34m
Deal found 10/15![American Airlines logo]()
$570
This American Airlines deal was found by Cheapflights users on 10/19. 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 12/176:43 pm -
1 stop7h 26m
Sun 12/279:09 am -
1 stop7h 01m
Deal found 10/19![American Airlines logo]()
$592
This American Airlines deal was found by Cheapflights users on 10/17. 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 11/217:01 pm -
1 stop7h 15m
Fri 11/278:29 am -
2 stops11h 33m
Deal found 10/17![American Airlines logo]()
$693
This American Airlines deal was found by Cheapflights users on 10/19. 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 11/36:08 am -
2 stops10h 05m
Sat 11/75:50 am -
2 stops10h 28m
Deal found 10/19![American Airlines logo]()
$715
This American Airlines deal was found by Cheapflights users on 10/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/146:05 am -
1 stop7h 26m
Sat 11/215:23 am -
1 stop6h 36m
Deal found 10/15![American Airlines logo]()
$724
This American Airlines deal was found by Cheapflights users on 10/19. 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 11/197:01 pm -
1 stop7h 15m
Fri 11/275:23 am -
1 stop6h 36m
Deal found 10/19![American Airlines logo]()
$732
This American Airlines deal was found by Cheapflights users on 10/14. 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.
Fri 11/205:53 am -
1 stop7h 14m
Mon 11/239:13 am -
2 stops9h 05m
Deal found 10/14![American Airlines logo]()
$738
Last-minute flights from Champaign to San FranciscoDiscover last-minute flight deals from Champaign to San Francisco. Data last updated October 19, 2026 and is based on user searches.
Discover last-minute flight deals from Champaign to San Francisco. Data last updated October 19, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 10/16. 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.
Wed 10/286:00 am -
1 stop7h 25m
Sun 11/15:35 am -
1 stop6h 27m
Deal found 10/16![American Airlines logo]()
$570
This American Airlines deal was found by Cheapflights users on 10/16. 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 10/302:37 pm -
1 stop8h 30m
Mon 11/25:35 am -
1 stop6h 27m
Deal found 10/16![American Airlines logo]()
$624
This American Airlines deal was found by Cheapflights users on 10/16. 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.
Sat 10/312:37 pm -
1 stop8h 30m
Wed 11/47:13 am -
1 stop9h 05m
Deal found 10/16![American Airlines logo]()
$516
This American Airlines deal was found by Cheapflights users on 10/16. 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.
Thu 11/197:01 pm -
1 stop7h 15m
Thu 11/266:00 am -
1 stop6h 52m
Deal found 10/16![American Airlines logo]()
$542
This American Airlines deal was found by Cheapflights users on 10/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1912:14 pm -
1 stop9h 46m
Fri 11/278:47 am -
1 stop9h 31m
Deal found 10/15![American Airlines logo]()
$583
This American Airlines deal was found by Cheapflights users on 10/14. 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 11/217:01 pm -
1 stop7h 15m
Mon 11/238:47 am -
1 stop9h 31m
Deal found 10/14![American Airlines logo]()
$497
This American Airlines deal was found by Cheapflights users on 10/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/217:01 pm -
1 stop7h 15m
Fri 11/278:47 am -
1 stop9h 31m
Deal found 10/15![American Airlines logo]()
$561
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 October 19, 2026.
Search for one-way flight options from Champaign to San Francisco. Find affordable one-way fares based on user searches. Data last updated October 19, 2026.
This American Airlines deal was found by Cheapflights users on 10/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/167:00 pm -
1 stop18h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/15![American Airlines logo]()
$393
This American Airlines deal was found by Cheapflights users on 10/19. 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 11/76:05 am -
1 stop7h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/19![American Airlines logo]()
$436
This American Airlines deal was found by Cheapflights users on 10/17. 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 12/178:31 am -
1 stop17h 38m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/17![American Airlines logo]()
$465
This American Airlines deal was found by Cheapflights users on 10/16. 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.
Sat 12/266:43 pm -
1 stop7h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/16![American Airlines logo]()
$486
This American Airlines deal was found by Cheapflights users on 10/18. 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 12/286:43 pm -
1 stop7h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/18![American Airlines logo]()
$505
This American Airlines deal was found by Cheapflights users on 10/16. 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.
Sun 12/276:43 pm -
1 stop7h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/16![American Airlines logo]()
$555
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 October 19, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $452 (American Airlines) |
One-way from | $393 (American Airlines) |
Popular in | December |
Cheapest in | May |
Average price | $575 |
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 7,457,451 searches. Data last updated October 19, 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 Champaign University-Willard - SFO San Francisco
CMISFO
Champaign University-Willard
Wed 12/16
7:00 pm-11:05 am
1 stop18h 05m
San Francisco
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$393
Quickest round-trip
ChampaignSan Francisco
CMI Champaign University-Willard - SFO San Francisco
CMISFO
Champaign University-Willard
Sat 11/7
6:05 am-11:31 am
1 stop7h 26m
San Francisco
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$436
ChampaignSan Francisco
CMI Champaign University-Willard - SFO San Francisco
CMISFO
Champaign University-Willard
Thu 12/17
8:31 am-6:40 pm
1 stop12h 09m
San Francisco
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$465
ChampaignSan Francisco
CMI Champaign University-Willard - SFO San Francisco
CMISFO
Champaign University-Willard
Sat 12/26
6:43 pm-12:09 am
1 stop7h 26m
San Francisco
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$486
ChampaignSan Francisco
CMI Champaign University-Willard - SFO San Francisco
CMISFO
Champaign University-Willard
Sat 11/14
7:11 am-4:11 pm
2 stops11h 00m
San Francisco
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$489
ChampaignSan Francisco
CMI Champaign University-Willard - SFO San Francisco
CMISFO
Champaign University-Willard
Mon 12/28
6:43 pm-12:09 am
1 stop7h 26m
San Francisco
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$505
ChampaignSan Francisco
CMI Champaign University-Willard - SFO San Francisco
CMISFO
Champaign University-Willard
Fri 12/11
2:32 pm-9:06 pm
1 stop8h 34m
San Francisco
Mon 1/18
11:45 pm-11:11 am
1 stop9h 26m
$542
ChampaignSan Francisco
CMI Champaign University-Willard - SFO San Francisco
CMISFO
Champaign University-Willard
Sun 12/27
6:43 pm-12:09 am
1 stop7h 26m
San Francisco
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$555
ChampaignSan Francisco
CMI Champaign University-Willard - SFO San Francisco
CMISFO
Champaign University-Willard
Fri 10/30
7:03 pm-12:30 am
1 stop7h 27m
San Francisco
Tue 11/3
8:47 am-8:21 pm
1 stop9h 34m
$570
ChampaignSan Francisco
CMI Champaign University-Willard - SFO San Francisco
CMISFO
Champaign University-Willard
Thu 12/17
6:43 pm-12:09 am
1 stop7h 26m
San Francisco
Sun 12/27
9:09 am-6:10 pm
1 stop7h 01m
$592
Showing 1-10 of 15 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 October.
| 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 October 19, 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.
Entertainment
6.8
Comfort
7.1
Food
6.4
Overall
7.0
Boarding
7.4
Crew
7.9
Reviews
1 / 20
2.0
MediocreAnonymous,Mar 2026
MIA - SFO
Entertainment
6.8
Comfort
7.1
Food
6.4
Overall
7.0
Boarding
7.4
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
Walnut Creek
Hayward
San Bruno
Emeryville
Burlingame
Roseville
Redwood City
Rancho Cordova
Cupertino
Newark
Fairfield
San Ramon
Manteca
San Carlos
Vallejo
Turlock
Davis
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Champaign and San Francisco flights
Browse other Champaign and San Francisco flight options. Last updated on October 19, 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 October 19, 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 October 19, 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 7,457,451 searches. Data last updated October 19, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$338 | Average$575 | FlexibilityNo cancel fee | On-time71% |