$410+ 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 12/2. Fares are subject to change and may not be available on all flights or dates of travel.
CMI — SFO
Sep 28 — Oct 51
Round-trip
1 adult, Economy
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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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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 August 29, 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 August 29, 2026.
This American Airlines deal was found by Cheapflights users on 8/28. 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.
Wed 12/27:11 am -
1 stop9h 59m
Wed 12/1612:39 pm -
1 stop7h 23m
Deal found 8/28![American Airlines logo]()
$410
This American Airlines deal was found by Cheapflights users on 8/28. 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.
Sat 9/126:00 am -
1 stop7h 29m
Wed 9/1611:02 am -
1 stop8h 44m
Deal found 8/28![American Airlines logo]()
$450
This American Airlines deal was found by Cheapflights users on 8/26. 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 9/251:23 pm -
1 stop6h 46m
Wed 9/3011:02 am -
1 stop8h 44m
Deal found 8/26![American Airlines logo]()
$474
This American Airlines deal was found by Cheapflights users on 8/24. 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.
Tue 9/82:47 pm -
1 stop7h 27m
Sat 9/127:00 am -
1 stop9h 10m
Deal found 8/24![American Airlines logo]()
$490
This American Airlines deal was found by Cheapflights users on 8/24. 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.
Tue 11/247:01 pm -
1 stop7h 15m
Tue 12/85:35 am -
1 stop6h 27m
Deal found 8/24![American Airlines logo]()
$520
This American Airlines deal was found by Cheapflights users on 8/27. 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 10/21:23 pm -
1 stop8h 41m
Sun 10/45:30 am -
1 stop6h 41m
Deal found 8/27![American Airlines logo]()
$538
This American Airlines deal was found by Cheapflights users on 8/24. 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.
Tue 8/252:47 pm -
1 stop9h 31m
Fri 9/411:00 am -
1 stop9h 00m
Deal found 8/24![American Airlines logo]()
$560
This American Airlines deal was found by Cheapflights users on 8/25. 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.
Wed 9/96:41 pm -
1 stop7h 17m
Sun 9/137:00 am -
2 stops9h 10m
Deal found 8/25![American Airlines logo]()
$561
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 August 29, 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 August 29, 2026.
This American Airlines deal was found by Cheapflights users on 8/28. 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.
Sat 9/126:00 am -
1 stop7h 29m
Wed 9/1611:02 am -
1 stop8h 44m
Deal found 8/28![American Airlines logo]()
$450
This American Airlines deal was found by Cheapflights users on 8/24. 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 11/252:29 pm -
2 stops10h 48m
Tue 12/85:35 am -
1 stop6h 27m
Deal found 8/24![American Airlines logo]()
$481
This American Airlines deal was found by Cheapflights users on 8/24. 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.
Tue 9/82:47 pm -
1 stop7h 27m
Sat 9/127:00 am -
1 stop9h 10m
Deal found 8/24![American Airlines logo]()
$490
This American Airlines deal was found by Cheapflights users on 8/24. 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 10/27:16 am -
1 stop9h 45m
Sun 10/45:30 am -
1 stop6h 41m
Deal found 8/24![American Airlines logo]()
$538
This American Airlines deal was found by Cheapflights users on 8/24. 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.
Thu 12/176:43 pm -
1 stop7h 26m
Mon 1/1810:28 am -
1 stop7h 57m
Deal found 8/24![American Airlines logo]()
$538
This American Airlines deal was found by Cheapflights users on 8/28. 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 11/52:32 pm -
1 stop9h 59m
Mon 11/98:47 am -
1 stop9h 34m
Deal found 8/28![American Airlines logo]()
$538
This deal was found by Cheapflights users on 8/26. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/22:32 pm -
1 stop8h 28m
Wed 12/1612:39 pm -
1 stop7h 23m
Deal found 8/26![American Airlines logo]()
$560
This American Airlines deal was found by Cheapflights users on 8/26. 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 9/241:23 pm -
1 stop8h 41m
Mon 9/2811:02 am -
1 stop8h 44m
Deal found 8/26![American Airlines logo]()
$584
This American Airlines deal was found by Cheapflights users on 8/24. 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.
Mon 11/237:11 am -
1 stop8h 00m
Sat 12/56:01 am -
1 stop6h 50m
Deal found 8/24![American Airlines logo]()
$584
Last-minute flights from Champaign to San FranciscoDiscover last-minute flight deals from Champaign to San Francisco. Data last updated August 29, 2026 and is based on user searches.
Discover last-minute flight deals from Champaign to San Francisco. Data last updated August 29, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 8/24. 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.
Tue 9/82:47 pm -
1 stop7h 27m
Sat 9/127:00 am -
1 stop9h 10m
Deal found 8/24![American Airlines logo]()
$490
This American Airlines deal was found by Cheapflights users on 8/25. 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.
Wed 9/96:41 pm -
1 stop7h 17m
Sun 9/1311:02 am -
1 stop8h 44m
Deal found 8/25![American Airlines logo]()
$520
This American Airlines deal was found by Cheapflights users on 8/28. 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.
Sat 9/126:00 am -
1 stop7h 29m
Wed 9/1611:02 am -
1 stop8h 44m
Deal found 8/28![American Airlines logo]()
$450
This American Airlines deal was found by Cheapflights users on 8/27. 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.
Thu 9/175:00 am -
1 stop9h 39m
Mon 9/215:30 am -
1 stop6h 41m
Deal found 8/27![American Airlines logo]()
$630
This American Airlines deal was found by Cheapflights users on 8/26. 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 9/241:23 pm -
1 stop8h 41m
Mon 9/2811:02 am -
1 stop8h 44m
Deal found 8/26![American Airlines logo]()
$584
This American Airlines deal was found by Cheapflights users on 8/26. 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 9/251:23 pm -
1 stop6h 46m
Wed 9/3011:02 am -
1 stop8h 44m
Deal found 8/26![American Airlines logo]()
$474
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 August 29, 2026.
Search for one-way flight options from Champaign to San Francisco. Find affordable one-way fares based on user searches. Data last updated August 29, 2026.
This American Airlines deal was found by Cheapflights users on 8/27. 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.
Sat 11/217:01 pm -
1 stop7h 15m
Deal found 8/27![American Airlines logo]()
$438
This American Airlines deal was found by Cheapflights users on 8/28. 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.
Fri 9/117:16 am -
1 stop9h 45m
Deal found 8/28![American Airlines logo]()
$463
This American Airlines deal was found by Cheapflights users on 8/27. 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.
Tue 12/2911:25 am -
1 stop8h 50m
Deal found 8/27![American Airlines logo]()
$523
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 August 29, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $410 (American Airlines) |
Popular in | November |
Cheapest in | May |
Average price | $521 |
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 August 29, 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
Sat 9/12
6:00 am-11:29 am
1 stop7h 29m
San Francisco
Wed 9/16
11:02 am-9:46 pm
1 stop8h 44m
$450
ChampaignSan Francisco
CMI Champaign University-Willard - SFO San Francisco
CMISFO
Champaign University-Willard
Wed 11/25
2:29 pm-11:17 pm
2 stops10h 48m
San Francisco
Tue 12/8
5:35 am-2:02 pm
1 stop6h 27m
$481
ChampaignSan Francisco
CMI Champaign University-Willard - SFO San Francisco
CMISFO
Champaign University-Willard
Tue 9/8
2:47 pm-8:14 pm
1 stop7h 27m
San Francisco
Sat 9/12
7:00 am-6:10 pm
1 stop9h 10m
$490
ChampaignSan Francisco
CMI Champaign University-Willard - SFO San Francisco
CMISFO
Champaign University-Willard
Fri 10/2
7:16 am-3:01 pm
1 stop9h 45m
San Francisco
Sun 10/4
5:30 am-2:11 pm
1 stop6h 41m
$538
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
Mon 1/18
10:28 am-8:25 pm
1 stop7h 57m
$538
ChampaignSan Francisco
CMI Champaign University-Willard - SFO San Francisco
CMISFO
Champaign University-Willard
Thu 11/5
2:32 pm-10:31 pm
1 stop9h 59m
San Francisco
Mon 11/9
8:47 am-8:21 pm
1 stop9h 34m
$538
ChampaignSan Francisco
CMI Champaign University-Willard - SFO San Francisco
CMISFO
Champaign University-Willard
Wed 12/2
2:32 pm-9:00 pm
1 stop8h 28m
San Francisco
Wed 12/16
12:39 pm-10:02 pm
1 stop7h 23m
$560
ChampaignSan Francisco
CMI Champaign University-Willard - SFO San Francisco
CMISFO
Champaign University-Willard
Thu 9/24
1:23 pm-8:04 pm
1 stop8h 41m
San Francisco
Mon 9/28
11:02 am-9:46 pm
1 stop8h 44m
$584
Quickest round-trip
ChampaignSan Francisco
CMI Champaign University-Willard - SFO San Francisco
CMISFO
Champaign University-Willard
Mon 11/23
7:11 am-1:11 pm
1 stop8h 00m
San Francisco
Sat 12/5
6:01 am-2:51 pm
1 stop6h 50m
$584
Cheapest one-way
ChampaignSan Francisco
CMI Champaign University-Willard - SFO San Francisco
CMISFO
Champaign University-Willard
Sat 11/21
7:01 pm-12:16 am
1 stop7h 15m
$438
Showing 1-10 of 13 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 August.
| 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.
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 August 29, 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
Overall
7.1
Crew
7.9
Comfort
7.2
Entertainment
6.8
Boarding
7.5
Reviews
1 / 20
2.0
MediocreAnonymous,Mar 2026
MIA - SFO
Food
6.4
Overall
7.1
Crew
7.9
Comfort
7.2
Entertainment
6.8
Boarding
7.5
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
Emeryville
San Bruno
Roseville
Rancho Cordova
Fairfield
Burlingame
Vallejo
Cupertino
Newark
Hayward
San Ramon
Redwood City
Manteca
San Carlos
Turlock
Davis
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Champaign and San Francisco flights
Browse other Champaign and San Francisco flight options. Last updated on August 29, 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 August 29, 2026.
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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 August 29, 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 August 29, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$338 | Average$521 | FlexibilityNo cancel fee | On-time71% |