CMI - SEA

$268 Find Cheap Flights from Champaign to Seattle

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Champaign to Seattle departing on 4/22. 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 Seattle

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Champaign to Seattle, 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 Seattle, as well as popular online travel agencies
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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$268
American Airlines
Wed 4/22Sat 4/25
CMI - SEA • 1 stop
Cheapest one-way
$297
American Airlines
Tue 3/24
CMI - SEA • 1 stop
Top airlines
American Airlines
Cheapest • from $268 (round-trip)
American Airlines
Best reviews • 7.2 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Champaign and Seattle. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Chicago (ORD)
Cheapest • Avg $489 (round-trip)
Chicago (ORD)
Shortest trip • 8h 04m (one-way)
Insights
Insights
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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 Seattle!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Champaign to Seattle (CMI-SEA)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Champaign to Seattle 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 Seattle

Wed, Apr 22 - Sat, Apr 25
American Airlines Logo
3:01 pm - 10:47 pm
CMI
-
SEA
9h 46m
1 stop
American Airlines Logo
11:41 am - 8:57 pm
SEA
-
CMI
7h 16m
1 stop
$268American Airlines
Tue, Mar 10 - Fri, Mar 13
American Airlines Logo
2:54 pm - 9:16 pm
CMI
-
SEA
8h 22m
1 stop
American Airlines Logo
12:13 am - 9:23 am
SEA
-
CMI
7h 10m
1 stop
$348American Airlines
Fri, Apr 10 - Thu, Apr 16
American Airlines Logo
6:58 pm - 12:36 am
CMI
-
SEA
7h 38m
1 stop
American Airlines Logo
11:16 am - 9:35 pm
SEA
-
CMI
8h 19m
1 stop
$358American Airlines
Fri, Jul 10 - Wed, Jul 22
United Airlines Logo
9:49 am - 9:59 pm
CMI
-
SEA
14h 10m
2 stops
United Airlines Logo
11:52 pm - 8:54 am
SEA
-
CMI
7h 02m
1 stop
$364United Airlines
Fri, Jul 10 - Wed, Jul 22
United Airlines Logo
9:49 am - 9:59 pm
CMI
-
SEA
14h 10m
2 stops
United Airlines Logo
5:04 pm - 8:54 am
SEA
-
CMI
13h 50m
2 stops
$369United Airlines
Thu, Mar 12 - Sun, Mar 15
American Airlines Logo
3:47 pm - 11:13 pm
CMI
-
SEA
9h 26m
1 stop
American Airlines Logo
12:13 am - 9:22 am
SEA
-
CMI
7h 09m
1 stop
$398American Airlines
Fri, May 29 - Sat, Jun 6
United Airlines Logo
1:32 pm - 9:59 pm
CMI
-
SEA
10h 27m
2 stops
United Airlines Logo
10:40 pm - 8:54 am
SEA
-
CMI
8h 14m
1 stop
$404United Airlines
Fri, May 29 - Sat, Jun 6
United Airlines Logo
1:32 pm - 1:29 am
CMI
-
SEA
13h 57m
2 stops
United Airlines Logo
6:30 am - 10:20 pm
SEA
-
CMI
13h 50m
2 stops
$409United Airlines
Fri, May 29 - Sat, Jun 6
American Airlines Logo
6:28 pm - 11:39 pm
CMI
-
SEA
7h 11m
1 stop
American Airlines Logo
11:58 pm - 11:10 am
SEA
-
CMI
9h 12m
1 stop
$416American Airlines
Wed, Apr 22 - Fri, Apr 24
American Airlines Logo
6:05 am - 2:27 pm
CMI
-
SEA
10h 22m
1 stop
American Airlines Logo
11:33 pm - 6:28 pm
SEA
-
CMI
16h 55m
1 stop
$422American Airlines
Booking Insights

KAYAK's insights & trends for Champaign to Seattle flights

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

Which airlines provide the cheapest flights from Champaign to Seattle?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Champaign to Seattle were found on American Airlines ($268) and United Airlines ($364).

Find deals

Good to know

Cheapest flight$268
Flight from Champaign to Seattle

When to book flights from Champaign to Seattle

Are your dates flexible? Find out the best times to travel from Champaign to Seattle 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 Seattle

  • What is the cheapest flight from Champaign to Seattle?

    In the last 3 days, the lowest price for a flight from Champaign to Seattle was $297 for a one-way ticket and $268 for a round-trip.

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

    A passport is not required to fly from Champaign to Seattle.

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

    When flying out of Champaign you will be using Champaign University-Willard. You will be landing at Seattle, also known as Seattle/Tacoma Intl.

  • Which aircraft models fly most regularly from Champaign to Seattle?

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

  • Which airline alliances offer flights from Champaign to Seattle?

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

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

    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 Seattle.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle 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 Seattle?

    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 Seattle with an airline and back to Champaign with another airline. Booking your flights between Champaign and SEA 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 Seattle?

    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 Seattle 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 Seattle

 
See real verified KAYAK customer reviews for airlines flying from Champaign to Seattle. 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 Seattle? 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 11352 reviews
6.4Food
7.5Boarding
7.2Comfort
6.9Entertainment
8.0Crew
Airline reviews

Flight to Tampa was delayed taking off due to plane arriving late but no other issues

10.0 ExcellentBobby, Feb 2026
ORD - TPA
Read more American Airlines reviews

Flight to Tampa was delayed taking off due to plane arriving late but no other issues

As previously stated the delay I experienced flying from Wichita to Chicago caused a host of issues. When I finally was able to be booked on the last remaining American flight from Chicago to Cincinnati, the gate changed four times with the last change occurring very near the scheduled boarding time. While I didn't have a problem moving from gate to gate, I did notice and make note of others that had mobility issues and had to move each time for the gate change.

Maintenance took a very long time and then we were in a holding pattern. While a one-off maintenance issue is standard, there were delays on both of my flights for this trip based on maintenance issues with the planes, which delayed both flights over 45 minutes. Thankfully, I didn't have any connections but it wasn't an experience that would make me pick AA if I have other options.

No Snacks or Entertainment. The flight was short, snacks should still be given.

See prior comment about how Kayak mishandled my reservation and delayed my arrival by 6 hours.

Boarding delayed 20 minutes for no reason, no wifi, in flight entertainment, or snacks / waters?

Beverage service was not good. Also just one service in 5 hr 30 min flight. No ask fir water ir anything beside one time beverage service.

Delayed an hour due to operational issues. Minimal apologies or care for the significant inconvenience caused. Landed at nearly 1am and they still couldn’t find ground staff to get us off the plane promptly.

The aircraft had several problems - from excess fuel to non operational ac. Two hours of delay in Chicago could have been avoided with proper planning and aircraft maintenance.

Crew in Columbia was not prepared for landing. It was a bit of a disaster and getting bags took forever.

Everything you need to know for your flight from Champaign to Seattle

Information on your arrival and departure airports

Champaign (CMI)
Seattle (SEA)