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Cheap flights from Seattle to Champaign from $348

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Champaign departing on 9/16. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Seattle to Champaign

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
10:59 am - 8:56 pmSEA  Seattle/Tacoma Intl-CMI Champaign University-Willard
7h 57m1 stop Chicago O'Hare Intl
American Airlines Logo
6:41 pm - 12:11 amCMI  Champaign University-Willard-SEA Seattle/Tacoma Intl
7h 30m1 stop Chicago O'Hare Intl
$348American Airlines
Wed, Sep 16 - Tue, Sep 22
American Airlines Logo
5:50 am - 4:22 pmSEA  Seattle/Tacoma Intl-CMI Champaign University-Willard
8h 32m1 stop Chicago O'Hare Intl
American Airlines Logo
5:00 am - 10:09 amCMI  Champaign University-Willard-SEA Seattle/Tacoma Intl
7h 09m1 stop Chicago O'Hare Intl
$382American Airlines
Sun, Sep 6 - Sat, Sep 12
American Airlines Logo
5:00 am - 2:15 pmSEA  Seattle/Tacoma Intl-CMI Champaign University-Willard
7h 15m1 stop Dallas/Fort Worth
American Airlines Logo
1:23 pm - 9:36 pmCMI  Champaign University-Willard-SEA Seattle/Tacoma Intl
10h 13m1 stop Chicago O'Hare Intl
$383American Airlines
Sun, Aug 30 - Wed, Sep 9
American Airlines Logo
5:00 am - 2:15 pmSEA  Seattle/Tacoma Intl-CMI Champaign University-Willard
7h 15m1 stop Dallas/Fort Worth
American Airlines Logo
4:54 pm - 11:59 pmCMI  Champaign University-Willard-SEA Seattle/Tacoma Intl
9h 05m1 stop Chicago O'Hare Intl
$383American Airlines
Sun, Aug 30 - Tue, Sep 8
American Airlines Logo
11:56 pm - 11:11 amSEA  Seattle/Tacoma Intl-CMI Champaign University-Willard
9h 15m1 stop Chicago O'Hare Intl
American Airlines Logo
6:00 am - 12:34 pmCMI  Champaign University-Willard-SEA Seattle/Tacoma Intl
8h 34m1 stop Chicago O'Hare Intl
$418American Airlines
Fri, Aug 28 - Tue, Sep 1
American Airlines Logo
10:15 am - 10:00 pmSEA  Seattle/Tacoma Intl-CMI Champaign University-Willard
9h 45m1 stop Dallas/Fort Worth
American Airlines Logo
1:23 pm - 9:36 pmCMI  Champaign University-Willard-SEA Seattle/Tacoma Intl
10h 13m1 stop Chicago O'Hare Intl
$448American Airlines
Thu, Sep 3 - Wed, Sep 9
American Airlines Logo
5:00 am - 2:15 pmSEA  Seattle/Tacoma Intl-CMI Champaign University-Willard
7h 15m1 stop Dallas/Fort Worth
American Airlines Logo
6:36 pm - 12:13 amCMI  Champaign University-Willard-SEA Seattle/Tacoma Intl
7h 37m1 stop Chicago O'Hare Intl
$463American Airlines
Mon, Aug 31 - Sat, Sep 5
American Airlines Logo
10:19 am - 8:28 pmSEA  Seattle/Tacoma Intl-CMI Champaign University-Willard
8h 09m1 stop Chicago O'Hare Intl
American Airlines Logo
4:54 pm - 11:59 pmCMI  Champaign University-Willard-SEA Seattle/Tacoma Intl
9h 05m1 stop Chicago O'Hare Intl
$483American Airlines
Wed, Sep 2 - Tue, Sep 8
American Airlines Logo
5:00 am - 2:15 pmSEA  Seattle/Tacoma Intl-CMI Champaign University-Willard
7h 15m1 stop Dallas/Fort Worth
American Airlines Logo
2:47 pm - 8:04 pmCMI  Champaign University-Willard-SEA Seattle/Tacoma Intl
7h 17m1 stop Dallas/Fort Worth
$483American Airlines
Thu, Sep 3 - Sun, Sep 6
American Airlines Logo
5:50 am - 4:22 pmSEA  Seattle/Tacoma Intl-CMI Champaign University-Willard
8h 32m1 stop Chicago O'Hare Intl
American Airlines Logo
6:36 pm - 12:13 amCMI  Champaign University-Willard-SEA Seattle/Tacoma Intl
7h 37m1 stop Chicago O'Hare Intl
$483American Airlines
Sun, Aug 30 - Sat, Sep 5

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American Airlines flights from Seattle to Champaign

Our best American Airlines deals on Seattle to Champaign flight tickets
American Airlines
Sep 16
SEA10:59 amSeattle/Tacoma Intl
7h 57m
1 stop
CMI8:56 pmChampaign University-Willard
Sep 22
CMI6:41 pmChampaign University-Willard
7h 30m
1 stop
SEA12:11 amSeattle/Tacoma Intl
$348
American Airlines
Sep 6
SEA5:50 amSeattle/Tacoma Intl
8h 32m
1 stop
CMI4:22 pmChampaign University-Willard
Sep 12
CMI5:00 amChampaign University-Willard
7h 09m
1 stop
SEA10:09 amSeattle/Tacoma Intl
$382
American Airlines
Aug 30
SEA5:00 amSeattle/Tacoma Intl
7h 15m
1 stop
CMI2:15 pmChampaign University-Willard
Sep 9
CMI1:23 pmChampaign University-Willard
10h 13m
1 stop
SEA9:36 pmSeattle/Tacoma Intl
$383

momondo Fare Finder

 
Customize your flight search to find flights from Seattle 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, momondo users made 832,500 searches. Data last updated August 17, 2026.
Use the filters below to find and compare flights from Seattle to Champaign that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleChampaign

SEA Seattle/Tacoma Intl - CMI Champaign University-Willard

SEACMI

Seattle/Tacoma Intl

Wed 9/16

10:59 am-8:56 pm

1 stop7h 57m

Champaign University-Willard

Tue 9/22

6:41 pm-12:11 am

1 stop7h 30m

$348

SeattleChampaign

SEA Seattle/Tacoma Intl - CMI Champaign University-Willard

SEACMI

Seattle/Tacoma Intl

Sun 9/6

5:50 am-4:22 pm

1 stop8h 32m

Champaign University-Willard

Sat 9/12

5:00 am-10:09 am

1 stop7h 09m

$382

SeattleChampaign

SEA Seattle/Tacoma Intl - CMI Champaign University-Willard

SEACMI

Seattle/Tacoma Intl

Sun 8/30

5:00 am-2:15 pm

1 stop7h 15m

Champaign University-Willard

Wed 9/9

1:23 pm-9:36 pm

1 stop10h 13m

$383

SeattleChampaign

SEA Seattle/Tacoma Intl - CMI Champaign University-Willard

SEACMI

Seattle/Tacoma Intl

Sun 8/30

5:00 am-2:15 pm

1 stop7h 15m

Champaign University-Willard

Tue 9/8

4:54 pm-11:59 pm

1 stop9h 05m

$383

SeattleChampaign

SEA Seattle/Tacoma Intl - CMI Champaign University-Willard

SEACMI

Seattle/Tacoma Intl

Fri 8/28

11:56 pm-11:11 am

1 stop9h 15m

Champaign University-Willard

Tue 9/1

6:00 am-12:34 pm

1 stop8h 34m

$418

SeattleChampaign

SEA Seattle/Tacoma Intl - CMI Champaign University-Willard

SEACMI

Seattle/Tacoma Intl

Thu 9/3

10:15 am-10:00 pm

1 stop9h 45m

Champaign University-Willard

Wed 9/9

1:23 pm-9:36 pm

1 stop10h 13m

$448

SeattleChampaign

SEA Seattle/Tacoma Intl - CMI Champaign University-Willard

SEACMI

Seattle/Tacoma Intl

Mon 8/31

5:00 am-2:15 pm

1 stop7h 15m

Champaign University-Willard

Sat 9/5

6:36 pm-12:13 am

1 stop7h 37m

$463

SeattleChampaign

SEA Seattle/Tacoma Intl - CMI Champaign University-Willard

SEACMI

Seattle/Tacoma Intl

Wed 9/2

10:19 am-8:28 pm

1 stop8h 09m

Champaign University-Willard

Tue 9/8

4:54 pm-11:59 pm

1 stop9h 05m

$483
Quickest round-trip

SeattleChampaign

SEA Seattle/Tacoma Intl - CMI Champaign University-Willard

SEACMI

Seattle/Tacoma Intl

Thu 9/3

5:00 am-2:15 pm

1 stop7h 15m

Champaign University-Willard

Sun 9/6

2:47 pm-8:04 pm

1 stop7h 17m

$483

SeattleChampaign

SEA Seattle/Tacoma Intl - CMI Champaign University-Willard

SEACMI

Seattle/Tacoma Intl

Sun 8/30

5:50 am-4:22 pm

1 stop8h 32m

Champaign University-Willard

Sat 9/5

6:36 pm-12:13 am

1 stop7h 37m

$483

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 resultsSorted by cheapest first
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See travel insights to Champaign from

How to get the cheapest flight ticket from Seattle to Champaign

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 month to fly to Champaign?

In general, April is the cheapest month to fly from Seattle to Champaign. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $0. If you are unable to visit Champaign during the month of April, then departing from Seattle during the month March is also very affordable. Most momondo users find prices during this month for around $387.

Can stopping save me money on Seattle to Champaign flights?

You could potentially save up to 29% on your flight if you consider stops on a Seattle to Champaign flight.

When to book flights from Seattle to Champaign

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

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

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

Best Price Found

$457

Fastest flight time

17h 36m

Direct flights

None
The best one-way flight to Champaign from Seattle in the past 72 hours is $457. The best round-trip flight deal from Seattle to Champaign found on momondo in the last 72 hours is $348.
The fastest flight from Seattle to Champaign takes 17h 36m
There are no direct flights from Seattle to Champaign. There are no popular flight routes from Seattle to Champaign.
Search flight deals

Frequently asked questions about flying from Seattle to Champaign

  • How far is Seattle/Tacoma Intl to Champaign University-Willard by plane?

    The straight-line distance from Seattle/Tacoma Intl to Champaign University-Willard is 1755.7 mi. A reasonable flight in good conditions will take 17h 36m.

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

    Prices for flights from Seattle/Tacoma Intl Airport to Champaign University-Willard Airport refresh daily.

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Champaign University-Willard Airport.

  • What documentation or ID do you need to fly to Champaign University-Willard Airport?

    The necessary travel and health documents for your Champaign University-Willard Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

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

Best airlines flying from Seattle to Champaign

Compare and see reviews for airlines that fly from Seattle to Champaign with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $356Free CancellationRating
7.1
11,945 reviews
Search American Airlines flights

Traveling to a place near Champaign?

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

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Seattle to Champaign for you.

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

Yes. momondo enables you to select and highlight flights to Champaign from Seattle with this policy.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Champaign from Seattle.

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

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

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