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Cheap flights from Seattle to Champaign from $164

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Champaign departing on 5/1. 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

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Find the cheapest flights from Seattle to Champaign

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
1:19 pm - 9:35 pm
SEA
-
CMI
6h 16m
1 stop
American Airlines Logo
6:58 pm - 12:36 am
CMI
-
SEA
7h 38m
1 stop
$328American Airlines
Fri, May 1 - Sun, May 3
United Airlines Logo
10:53 pm - 9:06 am
SEA
-
CMI
8h 13m
1 stop
United Airlines Logo
9:49 am - 3:48 pm
CMI
-
SEA
7h 59m
1 stop
$363United Airlines
Thu, May 7 - Tue, May 12
American Airlines Logo
1:19 pm - 9:35 pm
SEA
-
CMI
6h 16m
1 stop
American Airlines Logo
6:58 pm - 12:36 am
CMI
-
SEA
7h 38m
1 stop
$368American Airlines
Thu, Apr 30 - Sun, May 3
United Airlines Logo
11:53 pm - 9:06 am
SEA
-
CMI
7h 13m
1 stop
United Airlines Logo
9:49 am - 9:06 pm
CMI
-
SEA
13h 17m
2 stops
$393United Airlines
Thu, May 7 - Tue, May 12
United Airlines Logo
7:36 pm - 9:06 am
SEA
-
CMI
11h 30m
2 stops
United Airlines Logo
6:00 am - 11:39 am
CMI
-
SEA
7h 39m
1 stop
$426United Airlines
Fri, May 1 - Sun, May 3
United Airlines Logo
7:36 pm - 9:06 am
SEA
-
CMI
11h 30m
2 stops
United Airlines Logo
1:36 pm - 7:00 pm
CMI
-
SEA
7h 24m
1 stop
$427United Airlines
Fri, May 1 - Sun, May 3
United Airlines Logo
7:00 am - 5:49 pm
SEA
-
CMI
8h 49m
1 stop
United Airlines Logo
1:36 pm - 7:00 pm
CMI
-
SEA
7h 24m
1 stop
$428United Airlines
Tue, May 5 - Thu, May 14
United Airlines Logo
11:53 pm - 9:06 am
SEA
-
CMI
7h 13m
1 stop
United Airlines Logo
5:45 am - 6:32 pm
CMI
-
SEA
14h 47m
2 stops
$434United Airlines
Mon, May 4 - Sat, May 9
American Airlines Logo
1:19 pm - 9:35 pm
SEA
-
CMI
6h 16m
1 stop
American Airlines Logo
6:55 pm - 12:36 am
CMI
-
SEA
7h 41m
1 stop
$438American Airlines
Thu, May 7 - Mon, May 11
United Airlines Logo
7:36 pm - 9:06 am
SEA
-
CMI
11h 30m
2 stops
United Airlines Logo
5:45 am - 6:32 pm
CMI
-
SEA
14h 47m
2 stops
$439United Airlines
Mon, May 4 - Sat, May 9

American Airlines flights from Seattle to Champaign

Our best American Airlines deals on Seattle to Champaign flight tickets
American Airlines
May 1
SEA1:19 pmSeattle/Tacoma Intl
6h 16m
1 stop
CMI9:35 pmChampaign University-Willard
May 3
CMI6:58 pmChampaign University-Willard
7h 38m
1 stop
SEA12:36 amSeattle/Tacoma Intl
$328
American Airlines
Apr 30
SEA1:19 pmSeattle/Tacoma Intl
6h 16m
1 stop
CMI9:35 pmChampaign University-Willard
May 3
CMI6:58 pmChampaign University-Willard
7h 38m
1 stop
SEA12:36 amSeattle/Tacoma Intl
$368
American Airlines
May 7
SEA1:19 pmSeattle/Tacoma Intl
6h 16m
1 stop
CMI9:35 pmChampaign University-Willard
May 11
CMI6:55 pmChampaign University-Willard
7h 41m
1 stop
SEA12:36 amSeattle/Tacoma Intl
$438

United Airlines flights from Seattle to Champaign

Our best United Airlines deals on Seattle to Champaign flight tickets
United Airlines
May 7
SEA10:53 pmSeattle/Tacoma Intl
8h 13m
1 stop
CMI9:06 amChampaign University-Willard
May 12
CMI9:49 amChampaign University-Willard
7h 59m
1 stop
SEA3:48 pmSeattle/Tacoma Intl
$363
United Airlines
May 7
SEA11:53 pmSeattle/Tacoma Intl
7h 13m
1 stop
CMI9:06 amChampaign University-Willard
May 12
CMI9:49 amChampaign University-Willard
13h 17m
2 stops
SEA9:06 pmSeattle/Tacoma Intl
$393
United Airlines
May 1
SEA7:36 pmSeattle/Tacoma Intl
11h 30m
2 stops
CMI9:06 amChampaign University-Willard
May 3
CMI6:00 amChampaign University-Willard
7h 39m
1 stop
SEA11:39 amSeattle/Tacoma Intl
$426

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 April 2, 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
Quickest round-trip

SeattleChampaign

SEA - CMI

SEACMI

Seattle/Tacoma Intl

Fri 5/1

1:19 pm-9:35 pm

1 stop6h 16m

Champaign University-Willard

Sun 5/3

6:58 pm-12:36 am

1 stop7h 38m

$328

SeattleChampaign

SEA - CMI

SEACMI

Seattle/Tacoma Intl

Thu 5/7

10:53 pm-9:06 am

1 stop8h 13m

Champaign University-Willard

Tue 5/12

9:49 am-3:48 pm

1 stop7h 59m

$363

SeattleChampaign

SEA - CMI

SEACMI

Seattle/Tacoma Intl

Thu 4/30

1:19 pm-9:35 pm

1 stop6h 16m

Champaign University-Willard

Sun 5/3

6:58 pm-12:36 am

1 stop7h 38m

$368

SeattleChampaign

SEA - CMI

SEACMI

Seattle/Tacoma Intl

Thu 5/7

11:53 pm-9:06 am

1 stop7h 13m

Champaign University-Willard

Tue 5/12

9:49 am-9:06 pm

2 stops13h 17m

$393

SeattleChampaign

SEA - CMI

SEACMI

Seattle/Tacoma Intl

Fri 5/1

7:36 pm-9:06 am

2 stops11h 30m

Champaign University-Willard

Sun 5/3

6:00 am-11:39 am

1 stop7h 39m

$426

SeattleChampaign

SEA - CMI

SEACMI

Seattle/Tacoma Intl

Fri 5/1

7:36 pm-9:06 am

2 stops11h 30m

Champaign University-Willard

Sun 5/3

1:36 pm-7:00 pm

1 stop7h 24m

$427

SeattleChampaign

SEA - CMI

SEACMI

Seattle/Tacoma Intl

Tue 5/5

7:00 am-5:49 pm

1 stop8h 49m

Champaign University-Willard

Thu 5/14

1:36 pm-7:00 pm

1 stop7h 24m

$428

SeattleChampaign

SEA - CMI

SEACMI

Seattle/Tacoma Intl

Mon 5/4

11:53 pm-9:06 am

1 stop7h 13m

Champaign University-Willard

Sat 5/9

5:45 am-6:32 pm

2 stops14h 47m

$434

SeattleChampaign

SEA - CMI

SEACMI

Seattle/Tacoma Intl

Thu 5/7

1:19 pm-9:35 pm

1 stop6h 16m

Champaign University-Willard

Mon 5/11

6:55 pm-12:36 am

1 stop7h 41m

$438

SeattleChampaign

SEA - CMI

SEACMI

Seattle/Tacoma Intl

Mon 5/4

7:36 pm-9:06 am

2 stops11h 30m

Champaign University-Willard

Sat 5/9

5:45 am-6:32 pm

2 stops14h 47m

$439

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 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

Can stopping save me money on Seattle to Champaign flights?

You could potentially save up to 40% 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

Fastest flight time

6h 16m

Direct flights

None
The fastest flight from Seattle to Champaign takes 6h 16m
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 6h 16m.

  • 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 $284Free CancellationRating
7.1
11,550 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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