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Champaign

$263+ Cheap flights from San Francisco to Champaign (SFO - CMI)

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 8/19. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — CMI
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
1 adult, Economy
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Cheap flight deals from San Francisco to Champaign

Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) 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 July 29, 2025.

Round-trip from

$378
(American Airlines)

One-way from

$263
(American Airlines)

Popular in

April

Cheapest in

September

Average price

$558
From San Francisco to Champaign University-Willard
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One-way flight from San Francisco to Champaign University-Willard
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Highest demand for flights based on searches. 10% potential increase in price ($70 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($13 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from San Francisco to Champaign

Cheapest flights from San Francisco to Champaign
Explore the most affordable flight options available from San Francisco to Champaign. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

This American Airlines deal was found by Cheapflights users on 7/29. 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 8/2812:15 pmSFO - CMI
1 stop6h 28mAmerican Airlines
Mon 9/13:46 pmCMI - SFO
1 stop6h 47mAmerican Airlines
Deal found 7/29$378

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Francisco 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 2,558,603 searches. Data last updated July 29, 2025.
Use the filters below to find and compare flights from San Francisco to Champaign that are best for you.

Fly from

San Francisco

Fly to

Champaign

Route

Depart

Return

Price

San FranciscoChampaign

SFO - CMI

SFOCMI

San Francisco

Thu 8/28

12:15 pm-8:43 pm

1 stop6h 28m

Champaign University-Willard

Mon 9/1

3:46 pm-8:33 pm

1 stop6h 47m

$378

San FranciscoChampaign

SFO - CMI

SFOCMI

San Francisco

Tue 8/19

11:02 am-8:42 pm

1 stop7h 40m

$263

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Best time to book a flight from San Francisco to Champaign

Have a flexible travel schedule? Discover the best time to fly to Champaign from San Francisco with our price prediction graph.
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 San Francisco to Champaign

What is the cheapest month to book a flight from San Francisco to Champaign?

Currently, August is the cheapest month in which you can book a flight from San Francisco to Champaign (average of $384). Flying from San Francisco to Champaign in June is currently the most expensive (average of $549). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SFO to CMI?

Find hourly flight availability from San Francisco to Champaign. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 29, 2025.

It’s optimal to fly from San Francisco to Champaign in the afternoon. By choosing this option you can save up to 26% on the cost of your flight, compared to a flight at noon.

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 July 29, 2025.
Read through reviews of airlines operating flights from San Francisco to Champaign, such as American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.2
Good
10,000 reviews

Food

6.5

Comfort

7.2

Overall

7.2

Crew

8.0

Boarding

7.5

Entertainment

6.9

Reviews

1 / 20
2.0
Mediocre

Andrew,May 2025

LAX - MIA

2 hour delay. Discovered an engine problem late, we boarded the plane and they asked us to come off. To add insult to injury nothing was given to passengers to make amends. No free drink. No extra food or snacks. No free WiFi. Gimme a break
American Airlines
7.2
Good
10,000 reviews
American Airlines
7.2
Good
10,000 reviews

Food

6.5

Comfort

7.2

Overall

7.2

Crew

8.0

Boarding

7.5

Entertainment

6.9

Reviews

1 / 20
2.0
Mediocre

Andrew,May 2025

LAX - MIA

2 hour delay. Discovered an engine problem late, we boarded the plane and they asked us to come off. To add insult to injury nothing was given to passengers to make amends. No free drink. No extra food or snacks. No free WiFi. Gimme a break

Related info for your journey

Find useful and relevant information for your journey from San Francisco to Champaign. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What is the cheapest airline to fly from San Francisco to Champaign round-trip?

    American Airlines, at $378, was found to be the cheapest airline from San Francisco to Champaign.. American Airlines is 34% cheaper than the average price of flights available within the next 90 days to this destination.

  • Can I find deals for flights from San Francisco to Champaign that include hotel bookings?

    Yes. In addition to deals on San Francisco to Champaign flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Francisco to Champaign?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Francisco to Champaign.

  • Can I find deals for business class flights from San Francisco to Champaign?

    Yes. Cheapflights offers flight deals from San Francisco to Champaign by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from San Francisco to Champaign?

    Currently, August is the cheapest month in which you can book a flight from San Francisco to Champaign (average of $384). Flying from San Francisco to Champaign in June is currently the most expensive (average of $549). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Champaign?

Book flights to Champaign if you plan to visit one of these locations
Danville

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Top airline flying from San Francisco to Champaign

Discover the top airline that operate flights from San Francisco 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 2,558,603 searches. Data last updated July 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$228Average$554FlexibilityNo cancel feeOn-time71%

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