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Cheap flights from Champaign to Seattle from $328

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Champaign to Seattle departing on 11/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Champaign to Seattle

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
4:45 pm - 11:18 pmCMI-SEA
8h 33m1 stop
American Airlines Logo
12:59 am - 10:49 amSEA-CMI
7h 50m1 stop
$328American Airlines
Find Deal
Wed, Nov 12 - Sat, Nov 15
American Airlines Logo
6:00 am - 1:54 pmCMI-SEA
9h 54m1 stop
American Airlines Logo
11:42 am - 9:30 pmSEA-CMI
7h 48m1 stop
$557American Airlines
Find Deal
Sun, Nov 23 - Fri, Nov 28
American Airlines Logo
12:19 pm - 10:17 pmCMI-SEA
11h 58m1 stop
American Airlines Logo
7:15 am - 9:34 pmSEA-CMI
12h 19m1 stop
$611American Airlines
Find Deal
Wed, Mar 4 - Sat, Mar 7
American Airlines Logo
8:10 pm - 10:05 amCMI-SEA
15h 55m1 stop
American Airlines Logo
12:55 am - 12:44 pmSEA-CMI
9h 49m1 stop
$635American Airlines
Find Deal
Sat, Nov 22 - Fri, Nov 28
American Airlines Logo
3:15 pm - 9:16 pmCMI-SEA
8h 01m1 stop
American Airlines Logo
11:42 am - 9:30 pmSEA-CMI
7h 48m1 stop
$640American Airlines
Find Deal
Sun, Nov 23 - Fri, Nov 28
American Airlines Logo
8:10 pm - 10:05 amCMI-SEA
15h 55m1 stop
American Airlines Logo
12:55 am - 12:44 pmSEA-CMI
9h 49m1 stop
$652American Airlines
Find Deal
Tue, Nov 25 - Fri, Nov 28
American Airlines Logo
2:54 pm - 11:08 pmCMI-SEA
10h 14m1 stop
American Airlines Logo
7:00 am - 9:34 pmSEA-CMI
12h 34m2 stops
$681American Airlines
Find Deal
Wed, Mar 4 - Sat, Mar 7
American Airlines Logo
12:19 pm - 1:49 pmCMI-SEA
27h 30m2 stops
American Airlines Logo
7:15 am - 9:34 pmSEA-CMI
12h 19m1 stop
$696American Airlines
Find Deal
Wed, Mar 4 - Sat, Mar 7
American Airlines Logo
8:10 pm - 10:05 amCMI-SEA
15h 55m1 stop
American Airlines Logo
12:55 am - 7:40 pmSEA-CMI
16h 45m1 stop
$705American Airlines
Find Deal
Sat, Nov 22 - Fri, Nov 28
American Airlines Logo
12:19 pm - 10:17 pmCMI-SEA
11h 58m1 stop
American Airlines Logo
12:59 am - 9:34 pmSEA-CMI
18h 35m2 stops
$716American Airlines
Find Deal
Wed, Mar 4 - Fri, Mar 6

American Airlines flights from Champaign to Seattle

Our best American Airlines deals on Champaign to Seattle flight tickets
American Airlines
Nov 12
CMI4:45 pmChampaign University-Willard
8h 33m
1 stop
SEA11:18 pmSeattle/Tacoma Intl
Nov 15
SEA12:59 amSeattle/Tacoma Intl
7h 50m
1 stop
CMI10:49 amChampaign University-Willard
$328
Find similar
American Airlines
Nov 23
CMI6:00 amChampaign University-Willard
9h 54m
1 stop
SEA1:54 pmSeattle/Tacoma Intl
Nov 28
SEA11:42 amSeattle/Tacoma Intl
7h 48m
1 stop
CMI9:30 pmChampaign University-Willard
$557
Find similar
American Airlines
Mar 4
CMI12:19 pmChampaign University-Willard
11h 58m
1 stop
SEA10:17 pmSeattle/Tacoma Intl
Mar 7
SEA7:15 amSeattle/Tacoma Intl
12h 19m
1 stop
CMI9:34 pmChampaign University-Willard
$611
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Champaign to Seattle 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, momondo users made 832,500 searches. Data last updated October 29, 2025.
Use the filters below to find and compare flights from Champaign to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChampaignSeattle

CMI - SEA

CMISEA

Champaign University-Willard

Wed 11/12

4:45 pm-11:18 pm

1 stop8h 33m

Seattle/Tacoma Intl

Sat 11/15

12:59 am-10:49 am

1 stop7h 50m

$328

ChampaignSeattle

CMI - SEA

CMISEA

Champaign University-Willard

Sun 11/23

6:00 am-1:54 pm

1 stop9h 54m

Seattle/Tacoma Intl

Fri 11/28

11:42 am-9:30 pm

1 stop7h 48m

$557

ChampaignSeattle

CMI - SEA

CMISEA

Champaign University-Willard

Wed 3/4

12:19 pm-10:17 pm

1 stop11h 58m

Seattle/Tacoma Intl

Sat 3/7

7:15 am-9:34 pm

1 stop12h 19m

$611

ChampaignSeattle

CMI - SEA

CMISEA

Champaign University-Willard

Sat 11/22

8:10 pm-10:05 am

1 stop15h 55m

Seattle/Tacoma Intl

Fri 11/28

12:55 am-12:44 pm

1 stop9h 49m

$635

ChampaignSeattle

CMI - SEA

CMISEA

Champaign University-Willard

Sun 11/23

3:15 pm-9:16 pm

1 stop8h 01m

Seattle/Tacoma Intl

Fri 11/28

11:42 am-9:30 pm

1 stop7h 48m

$640

ChampaignSeattle

CMI - SEA

CMISEA

Champaign University-Willard

Tue 11/25

8:10 pm-10:05 am

1 stop15h 55m

Seattle/Tacoma Intl

Fri 11/28

12:55 am-12:44 pm

1 stop9h 49m

$652

ChampaignSeattle

CMI - SEA

CMISEA

Champaign University-Willard

Wed 3/4

2:54 pm-11:08 pm

1 stop10h 14m

Seattle/Tacoma Intl

Sat 3/7

7:00 am-9:34 pm

2 stops12h 34m

$681

ChampaignSeattle

CMI - SEA

CMISEA

Champaign University-Willard

Wed 3/4

12:19 pm-1:49 pm

2 stops27h 30m

Seattle/Tacoma Intl

Sat 3/7

7:15 am-9:34 pm

1 stop12h 19m

$696

ChampaignSeattle

CMI - SEA

CMISEA

Champaign University-Willard

Sat 11/22

8:10 pm-10:05 am

1 stop15h 55m

Seattle/Tacoma Intl

Fri 11/28

12:55 am-7:40 pm

1 stop16h 45m

$705

ChampaignSeattle

CMI - SEA

CMISEA

Champaign University-Willard

Wed 3/4

12:19 pm-10:17 pm

1 stop11h 58m

Seattle/Tacoma Intl

Fri 3/6

12:59 am-9:34 pm

2 stops18h 35m

$716

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Champaign to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Seattle?

On average, the least expensive day to fly to Seattle from Champaign is on a Saturday. momondo users have found tickets for Saturday departures for as low as $371. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Friday is the most expensive day to depart from Champaign because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $658.

What is the cheapest time of day to depart on your flight to Seattle?

Flying to Seattle from Champaign at noon is the least expensive time of day to depart. momondo users have found prices as low as $397 when looking at flights departing at noon. Flights to Seattle are more costly in the morning, with an average ticket price of $529. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

When to book flights from Champaign to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Champaign to Seattle according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Champaign to Seattle (CMI to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Champaign to Seattle

Direct flights

None
There are no direct flights from Champaign to Seattle. There are no popular flight routes from Champaign to Seattle.
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  • How far is Champaign University-Willard to Seattle/Tacoma Intl by plane?

    A flight from Champaign University-Willard to Seattle/Tacoma Intl will travel around 1755.7 mi. Flights usually cover this in 8h 01m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Champaign University-Willard Airport to Seattle/Tacoma Intl Airport?

    Prices for flights from Champaign University-Willard Airport to Seattle/Tacoma Intl Airport were last updated today.

  • How many operators does momondo search for flights from Champaign University-Willard Airport to Seattle/Tacoma Intl Airport?

  • How old do you have to be to fly from Champaign University-Willard Airport to Seattle/Tacoma Intl Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Champaign University-Willard Airport to Seattle/Tacoma Intl Airport.

  • What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

    The required travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Champaign to Seattle?

Best airlines flying from Champaign to Seattle

Compare and see reviews for airlines that fly from Champaign to Seattle with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $320Free CancellationRating
7.2
11,030 reviews
Search American Airlines flights

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
Leavenworth
SeaTac
Ocean Shores
Renton
Olympia
Lynnwood
Kent
Puyallup
Marysville
Redmond
Tukwila
Federal Way
Lakewood
Cle Elum
Fife
Centralia
Kirkland
Shoreline
Westport

Why use momondo?

Why should I use momondo to find a flight deal from Champaign to Seattle?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Champaign to Seattle. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Champaign to Seattle with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Champaign to Seattle flights to just show those with flexible booking policies.

How can momondo help me find flights from Champaign to Seattle?

momondo helps you find the best flight between Champaign and Seattle by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Champaign to Seattle right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Champaign to Seattle now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Seattle and let you know when they change.

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