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Cheap flights from Seattle to Champaign from $304

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 10/24. 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 Seattle to Champaign

Cheap round-trip flights

American Airlines Logo
12:34 am - 10:43 amSEA-CMI
8h 09m1 stop
American Airlines Logo
3:49 pm - 9:48 pmCMI-SEA
7h 59m1 stop
$304American Airlines
Find Deal
Fri, Oct 24 - Tue, Oct 28
American Airlines Logo
12:34 am - 10:43 amSEA-CMI
8h 09m1 stop
American Airlines Logo
7:01 pm - 12:27 amCMI-SEA
7h 26m1 stop
$326American Airlines
Find Deal
Fri, Oct 17 - Mon, Oct 20
American Airlines Logo
10:09 am - 8:51 pmSEA-CMI
8h 42m1 stop
American Airlines Logo
3:47 pm - 10:59 pmCMI-SEA
9h 12m1 stop
$330American Airlines
Find Deal
Thu, Oct 2 - Mon, Oct 6
American Airlines Logo
1:02 pm - 9:51 pmSEA-CMI
6h 49m1 stop
American Airlines Logo
3:47 pm - 9:46 pmCMI-SEA
7h 59m1 stop
$356American Airlines
Find Deal
Thu, Oct 2 - Mon, Oct 6
American Airlines Logo
11:40 am - 9:30 pmSEA-CMI
7h 50m1 stop
American Airlines Logo
6:49 am - 2:49 pmCMI-SEA
10h 00m1 stop
$439American Airlines
Find Deal
Thu, Jan 1 - Wed, Jan 7
American Airlines Logo
12:34 am - 10:43 amSEA-CMI
8h 09m1 stop
American Airlines Logo
7:01 pm - 12:27 amCMI-SEA
7h 26m1 stop
$491American Airlines
Find Deal
Thu, Oct 9 - Sun, Oct 12
American Airlines Logo
10:39 am - 9:42 pmSEA-CMI
9h 03m1 stop
American Airlines Logo
7:01 pm - 12:27 amCMI-SEA
7h 26m1 stop
$620American Airlines
Find Deal
Fri, Oct 10 - Sun, Oct 12
American Airlines Logo
6:30 am - 6:31 pmSEA-CMI
10h 01m2 stops
American Airlines Logo
4:26 pm - 9:23 pmCMI-SEA
6h 57m1 stop
$740American Airlines
Find Deal
Sat, Oct 25 - Tue, Oct 28
American Airlines Logo
12:14 am - 6:40 pmSEA-CMI
16h 26m1 stop
American Airlines Logo
6:19 am - 2:49 pmCMI-SEA
10h 30m2 stops
$747American Airlines
Find Deal
Wed, Dec 31 - Wed, Jan 7
American Airlines Logo
12:34 am - 6:31 pmSEA-CMI
15h 57m1 stop
American Airlines Logo
3:49 pm - 12:27 amCMI-SEA
10h 38m2 stops
$762American Airlines
Find Deal
Fri, Oct 24 - Tue, Oct 28

American Airlines flights from Seattle to Champaign

Our best American Airlines deals on Seattle to Champaign flight tickets
American Airlines
Oct 24
SEA12:34 amSeattle/Tacoma Intl
8h 09m
1 stop
CMI10:43 amChampaign University-Willard
Oct 28
CMI3:49 pmChampaign University-Willard
7h 59m
1 stop
SEA9:48 pmSeattle/Tacoma Intl
$304
Find similar
American Airlines
Oct 17
SEA12:34 amSeattle/Tacoma Intl
8h 09m
1 stop
CMI10:43 amChampaign University-Willard
Oct 20
CMI7:01 pmChampaign University-Willard
7h 26m
1 stop
SEA12:27 amSeattle/Tacoma Intl
$326
Find similar
American Airlines
Oct 2
SEA10:09 amSeattle/Tacoma Intl
8h 42m
1 stop
CMI8:51 pmChampaign University-Willard
Oct 6
CMI3:47 pmChampaign University-Willard
9h 12m
1 stop
SEA10:59 pmSeattle/Tacoma Intl
$330
Find similar

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 September 16, 2025.
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

SeattleChampaign

SEA - CMI

SEACMI

Seattle/Tacoma Intl

Fri 10/24

12:34 am-10:43 am

1 stop8h 09m

Champaign University-Willard

Tue 10/28

3:49 pm-9:48 pm

1 stop7h 59m

$304

SeattleChampaign

SEA - CMI

SEACMI

Seattle/Tacoma Intl

Fri 10/17

12:34 am-10:43 am

1 stop8h 09m

Champaign University-Willard

Mon 10/20

7:01 pm-12:27 am

1 stop7h 26m

$326

SeattleChampaign

SEA - CMI

SEACMI

Seattle/Tacoma Intl

Thu 10/2

10:09 am-8:51 pm

1 stop8h 42m

Champaign University-Willard

Mon 10/6

3:47 pm-10:59 pm

1 stop9h 12m

$330

SeattleChampaign

SEA - CMI

SEACMI

Seattle/Tacoma Intl

Thu 10/2

1:02 pm-9:51 pm

1 stop6h 49m

Champaign University-Willard

Mon 10/6

3:47 pm-9:46 pm

1 stop7h 59m

$356

SeattleChampaign

SEA - CMI

SEACMI

Seattle/Tacoma Intl

Thu 1/1

11:40 am-9:30 pm

1 stop7h 50m

Champaign University-Willard

Wed 1/7

6:49 am-2:49 pm

1 stop10h 00m

$439

SeattleChampaign

SEA - CMI

SEACMI

Seattle/Tacoma Intl

Thu 10/9

12:34 am-10:43 am

1 stop8h 09m

Champaign University-Willard

Sun 10/12

7:01 pm-12:27 am

1 stop7h 26m

$491

SeattleChampaign

SEA - CMI

SEACMI

Seattle/Tacoma Intl

Fri 10/10

10:39 am-9:42 pm

1 stop9h 03m

Champaign University-Willard

Sun 10/12

7:01 pm-12:27 am

1 stop7h 26m

$620

SeattleChampaign

SEA - CMI

SEACMI

Seattle/Tacoma Intl

Sat 10/25

6:30 am-6:31 pm

2 stops10h 01m

Champaign University-Willard

Tue 10/28

4:26 pm-9:23 pm

1 stop6h 57m

$740

SeattleChampaign

SEA - CMI

SEACMI

Seattle/Tacoma Intl

Wed 12/31

12:14 am-6:40 pm

1 stop16h 26m

Champaign University-Willard

Wed 1/7

6:19 am-2:49 pm

2 stops10h 30m

$747

SeattleChampaign

SEA - CMI

SEACMI

Seattle/Tacoma Intl

Fri 10/24

12:34 am-6:31 pm

1 stop15h 57m

Champaign University-Willard

Tue 10/28

3:49 pm-12:27 am

2 stops10h 38m

$762

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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 day to depart on your flight to Champaign?

Our data shows that Thursday is the least expensive day to fly to Champaign. Tickets to fly out on this day can be as low as $445. If your travel schedule is flexible, try to avoid departing on a Tuesday because tickets tend to average around $674. These prices are subject to change though, so be sure to set up a Price Alert for flights to Champaign.

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

Our most recent data shows that the best time of day to fly to Champaign is in the evening. Flights from Seattle to Champaign during this time can be as low as $499. In contrast, the most expensive time of day to depart to Champaign is at noon when prices are around $636.

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

Direct flights

None
There are no direct flights from Seattle to Champaign. There are no popular flight routes from Seattle to Champaign.
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  • 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 37m.

  • 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 $220Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights

Traveling to a place near Champaign?

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

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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