CMI - SEA

$169 Find Cheap Flights from Champaign to Seattle

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 Seattle departing on 9/3. 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
$338
American Airlines
Sat 8/22Sat 8/29
CMI - SEA • 1 stop
Cheapest one-way
$169
American Airlines
Thu 9/3
CMI - SEA • 1 stop
Nonstop flights
Not available
There are currently no direct flights between Champaign and Seattle. You'll need at least 1 connection.
Insights
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Top layover airports
Cheapest • Avg $466 (round-trip)
Shortest trip • 7h 38m (one-way)
Insights
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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

Sat, Aug 22 - Sat, Aug 29
American Airlines Logo
6:36 pm - 12:13 am
CMI
-
SEA
7h 37m
1 stop
American Airlines Logo
5:00 am - 2:15 pm
SEA
-
CMI
7h 15m
1 stop
$338American Airlines
Sat, Jul 11 - Wed, Jul 15
American Airlines Logo
6:34 pm - 12:52 am
CMI
-
SEA
8h 18m
1 stop
American Airlines Logo
10:22 am - 9:59 pm
SEA
-
CMI
9h 37m
1 stop
$408American Airlines
Thu, Jul 23 - Wed, Jul 29
American Airlines Logo
6:36 pm - 12:52 am
CMI
-
SEA
8h 16m
1 stop
American Airlines Logo
11:56 pm - 11:07 am
SEA
-
CMI
9h 11m
1 stop
$409American Airlines
Tue, Aug 11 - Wed, Aug 19
American Airlines Logo
2:47 pm - 10:26 pm
CMI
-
SEA
9h 39m
1 stop
American Airlines Logo
11:56 pm - 11:11 am
SEA
-
CMI
9h 15m
1 stop
$438American Airlines
Sun, Aug 9 - Fri, Aug 14
American Airlines Logo
4:52 pm - 12:13 am
CMI
-
SEA
9h 21m
1 stop
American Airlines Logo
5:00 am - 2:15 pm
SEA
-
CMI
7h 15m
1 stop
$443American Airlines
Fri, Jul 10 - Wed, Jul 22
American Airlines Logo
6:28 pm - 12:59 am
CMI
-
SEA
8h 31m
1 stop
American Airlines Logo
5:05 am - 2:16 pm
SEA
-
CMI
7h 11m
1 stop
$453American Airlines
Fri, Jul 10 - Wed, Jul 22
American Airlines Logo
6:28 pm - 12:59 am
CMI
-
SEA
8h 31m
1 stop
American Airlines Logo
5:05 am - 2:16 pm
SEA
-
CMI
7h 11m
1 stop
$479American Airlines
Tue, Aug 11 - Tue, Aug 18
American Airlines Logo
4:54 pm - 11:59 pm
CMI
-
SEA
9h 05m
1 stop
American Airlines Logo
5:00 am - 2:15 pm
SEA
-
CMI
7h 15m
1 stop
$509American Airlines
Tue, Aug 11 - Thu, Aug 20
American Airlines Logo
4:54 pm - 11:59 pm
CMI
-
SEA
9h 05m
1 stop
American Airlines Logo
10:15 am - 10:00 pm
SEA
-
CMI
9h 45m
1 stop
$533American Airlines
Tue, Aug 11 - Sat, Aug 22
American Airlines Logo
4:54 pm - 11:59 pm
CMI
-
SEA
9h 05m
1 stop
American Airlines Logo
5:00 am - 2:15 pm
SEA
-
CMI
7h 15m
1 stop
$534American 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.

What is the most popular layover airport when flying from Champaign to Seattle?

Percentage of 1-stop round-trip flights from Champaign to Seattle chosen by KAYAK users via each layover airport in the last 12 months (only includes trips with the same layover airport on both legs).

Chicago (ORD) is the top choice – 62% of KAYAK users who clicked on 1-stop flights from Champaign to Seattle picked an itinerary connecting there.

What is the cheapest layover airport when flying from Champaign to Seattle?

Average round-trip price for 1-stop flights from Champaign to Seattle clicked by KAYAK users in the last 12 months (only includes trips with the same layover airport on both legs).

Flights via Chicago (ORD) offer the most affordable fares, with an average round-trip price of $466.

Which layover airport offers the shortest total travel time from Champaign to Seattle?

Shortest average total travel time for 1-stop one-way flights from Champaign to Seattle via different layover airports, based on KAYAK user data from the last 12 months.

Consider flying via Chicago (ORD) for the shortest journey. The average one-way travel time for flights connecting there is 7h 38m.

Which layover airport has the quickest connection when flying from Champaign to Seattle?

Average layover duration at different layover airports for 1-stop one-way flights from Champaign to Seattle, based on KAYAK user data from the last 12 months.

If you prefer a quick connection, Chicago (ORD) often has the shortest layovers from Champaign to Seattle, with an average of 1h 41m.

Good to know

Cheapest flight$169
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 5 days, the lowest price for a flight from Champaign to Seattle was $169 for a one-way ticket and $338 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.
7.1
American AirlinesOverall score based on 11768 reviews
7.9Crew
7.5Boarding
6.8Entertainment
6.4Food
7.2Comfort
Airline reviews

Plane was super cold. No entertainment unless you were with mileage program Getting off the plane was super slow

6.0 GoodDeannia, Mar 2026
PHL - SEA
Read more American Airlines reviews

Plane was super cold. No entertainment unless you were with mileage program Getting off the plane was super slow

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.

Flight was delayed because of a bird strike. They had another plane available within 45 minutes.

It was a code share with Alaska - would have been great if I actually made it on the plane, claimed I didn’t have a ticket or a seat even thought I was checked in.

The main problem was delay. The plane was at the gate early and bags were loaded. However, there was no crew for the flight. They were inbound from LGA and had to land and make their way to our gate. It took more than 40 minutes. Then, once the crew arrived and boarded, one of the crew members had to deplane and then a replacement crew member had to be found. It took another 40 minutes or so to get the final crew member. In all, we took off about 2 hours later than our scheduled departure time. Once in the air, the flight was great. Smooth most of the way. The crew was professional and efficient.

i suspect i caught flu on this flight as i could hear someone coughing a few rows back and ended up with flu a few days later. also tiresome to have to watch movies on my device by holding up smartphone screen, would have liked to have in seat display.

I had trouble finding a boarding pass because I had an hour between Flights and American did not see my flight I believe because I was ticketed through KAYAK. I did not have enough time to go to the desk before boarding so I went to the desk and told them while I was boarding and they had a boarding pass for me within three minutes. Nice. I paid extra to have more legroom and it is definitely worth it for a six hour flight. I would’ve paid for a decent dinner, but they didn’t offer anything but a snack box —not good for six hours.

Terrible flight seats where really uncomfortable I had body aches for 2 days and flight was delays almost two hours

Very smooth for one of the busiest travel days of the year and the crew was great.

Boarded late. Missed first landing attempt, landed almost an hour late and missed connecting flight.

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

Information on your arrival and departure airports