CMI - SFO

$368 Find Cheap Flights from Champaign to San Francisco

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Champaign to San Francisco departing on 12/17. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to San Francisco

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Champaign to San Francisco, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Champaign to San Francisco, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$378
American Airlines
Fri 12/5Tue 12/9
CMI - SFO • 1 stop
Cheapest one-way
$368
American Airlines
Wed 12/17
CMI - SFO • 1 stop
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to San Francisco!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Champaign to San Francisco (CMI-SFO)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Champaign to San Francisco that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Champaign to San Francisco

Fri, Dec 5 - Tue, Dec 9
American Airlines Logo
6:52 am - 1:34 pmCMI-SFO
8h 42m1 stop
American Airlines Logo
6:00 am - 2:36 pmSFO-CMI
6h 36m1 stop
$378American Airlines
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Fri, Dec 5 - Tue, Dec 9
American Airlines Logo
6:06 am - 1:10 pmCMI-SFO
9h 04m1 stop
American Airlines Logo
9:15 am - 8:27 pmSFO-CMI
9h 12m2 stops
$384American Airlines
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Fri, Dec 5 - Tue, Dec 9
American Airlines Logo
11:21 am - 8:23 pmCMI-SFO
11h 02m2 stops
American Airlines Logo
6:00 am - 8:27 pmSFO-CMI
12h 27m2 stops
$389American Airlines
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Thu, Nov 20 - Mon, Nov 24
American Airlines Logo
6:00 am - 11:27 amCMI-SFO
7h 27m1 stop
American Airlines Logo
6:00 am - 2:45 pmSFO-CMI
6h 45m1 stop
$513American Airlines
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Thu, Nov 20 - Mon, Nov 24
American Airlines Logo
11:16 am - 8:22 pmCMI-SFO
11h 06m2 stops
American Airlines Logo
6:00 am - 2:45 pmSFO-CMI
6h 45m1 stop
$519American Airlines
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Thu, Nov 20 - Mon, Nov 24
American Airlines Logo
11:16 am - 8:22 pmCMI-SFO
11h 06m2 stops
American Airlines Logo
7:12 am - 8:37 pmSFO-CMI
11h 25m2 stops
$556American Airlines
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Sat, Jan 17 - Wed, Jan 21
American Airlines Logo
7:03 am - 5:24 pmCMI-SFO
12h 21m1 stop
American Airlines Logo
12:17 am - 9:17 pmSFO-CMI
19h 00m1 stop
$613American Airlines
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Sat, Jan 17 - Wed, Jan 21
American Airlines Logo
7:03 am - 6:30 pmCMI-SFO
13h 27m2 stops
American Airlines Logo
12:17 am - 9:17 pmSFO-CMI
19h 00m1 stop
$647American Airlines
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Sat, Dec 20 - Sat, Dec 27
American Airlines Logo
6:00 am - 4:13 pmCMI-SFO
12h 13m2 stops
American Airlines Logo
4:11 pm - 11:00 amSFO-CMI
16h 49m2 stops
$813American Airlines
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Sat, Dec 20 - Sat, Dec 27
American Airlines Logo
3:13 pm - 8:09 pmCMI-SFO
30h 56m2 stops
American Airlines Logo
7:00 am - 8:37 pmSFO-CMI
11h 37m1 stop
$859American Airlines
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Booking Insights

KAYAK's insights & trends for Champaign to San Francisco flights

Get data-powered insights and trends into flights from Champaign to San Francisco to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Champaign to San Francisco?

The average price of all round-trip flights from Champaign to San Francisco clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to San Francisco on a Wednesday and more expensive on a Monday. On your return trip to Champaign, you should consider flying back on a Monday, and avoid Fridays for better deals.

Find deals

Good to know

Low seasonSeptember
Cheapest flight$368
Best time to beat the crowds with an average 33% drop in price.
Most popular time to fly and prices are also 5% lower on average.
Flight from Champaign to San Francisco

When to book flights from Champaign to San Francisco

Are your dates flexible? Find out the best times to travel from Champaign to San Francisco based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Champaign to San Francisco

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

    In the last 3 days, the lowest price for a flight from Champaign to San Francisco was $368 for a one-way ticket and $378 for a round-trip.

  • Do I need a passport to fly between Champaign and San Francisco?

    A passport is not required to fly from Champaign to San Francisco.

  • Which airports will I be using when flying from Champaign to San Francisco?

    When flying out of Champaign you will be using Champaign University-Willard. You will be landing at San Francisco, also known as San Francisco.

  • Which aircraft models fly most regularly from Champaign to San Francisco?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Champaign to San Francisco?

    oneworld is the only airline alliance operating flights between Champaign and San Francisco.

  • How does KAYAK find such low prices on flights from Champaign to San Francisco?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Champaign to San Francisco.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Champaign to San Francisco?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Francisco from Champaign is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Champaign to San Francisco?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Francisco with an airline and back to Champaign with another airline. Booking your flights between Champaign and SFO can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Champaign to San Francisco?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Francisco from Champaign up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Champaign to San Francisco

 
See real verified KAYAK customer reviews for airlines flying from Champaign to San Francisco. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Champaign to San Francisco? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.2
American AirlinesOverall score based on 11042 reviews
6.4Food
8.0Crew
7.2Comfort
6.9Entertainment
7.5Boarding
Airline reviews

Wish some foods provided rather than just biscuit/cookie for flight more than 2 hours

8.0 ExcellentKohMeng, Oct 2025DFW - LAX
Read more American Airlines reviews

Wish some foods provided rather than just biscuit/cookie for flight more than 2 hours

We are too tired and frustrated to comment politely at this point

The flight crew was rude. We were in first class and no one even offered water until an hour after we were in the air. Horrible experience

Great. Quick and quiet and east. The breakfast choices were a welcome surprise!

The stewardess hit me with the food kart twice on the head and didn't say I'm sorry once. The same stewardess gave me a warm Apple Juice with No ice. The Flight was delayed for Departure 6 times, starting from 2:36pm, finally taking off 7:50pm. I was late picking up my child from the sitter by 3 hours.

Did not get the seat I selected and paid for.

My flight was delayed for several hours. Sitting at gate 16 for several hours, I got a text from Kayak the gate changed to 9 before it was announced. Very bad communication at each gate from American Airlines employees. I received 10 notifications of delay from Kayak. My vacation started off horrible! I will write to American Airlines corporate office also.

Delayed flight that lead to a missed connection and a 5-hour trip became a 12-hour flight 🙄

There is no room, no gluten free options, or any free internet/entertainment. You have to bring your own tablet or smartphone because there are no screens.

Amazing food, great staff, with one noticable detail missing ...but no seat entertainment in any of aircraft ...I am not a fan

Everything you need to know for your flight from Champaign to San Francisco

Information on your arrival and departure airports

Champaign (CMI)
San Francisco (SFO)