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Cheap flights from Seattle to Champaign from $384

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 12/29. 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

Enter your travel dates to find the best prices.
American Airlines Logo
11:55 am - 9:06 pm
SEA
-
CMI
7h 11m1 stop
American Airlines Logo
7:03 am - 3:34 pm
CMI
-
SEA
10h 31m1 stop
$407American Airlines
Tue, Jan 6 - Sat, Jan 10
American Airlines Logo
6:00 am - 3:01 pm
SEA
-
CMI
7h 01m1 stop
American Airlines Logo
7:03 am - 3:34 pm
CMI
-
SEA
10h 31m1 stop
$428American Airlines
Tue, Jan 6 - Sat, Jan 10
American Airlines Logo
8:04 am - 6:23 pm
SEA
-
CMI
8h 19m1 stop
American Airlines Logo
7:03 am - 3:34 pm
CMI
-
SEA
10h 31m1 stop
$468American Airlines
Tue, Jan 6 - Sat, Jan 10
American Airlines Logo
11:55 am - 9:06 pm
SEA
-
CMI
7h 11m1 stop
American Airlines Logo
3:45 pm - 11:51 pm
CMI
-
SEA
10h 06m1 stop
$487American Airlines
Tue, Jan 6 - Sun, Jan 11
American Airlines Logo
12:14 am - 11:00 am
SEA
-
CMI
8h 46m1 stop
American Airlines Logo
6:52 am - 2:54 pm
CMI
-
SEA
10h 02m1 stop
$530American Airlines
Sat, Dec 27 - Thu, Jan 1
American Airlines Logo
12:14 am - 11:00 am
SEA
-
CMI
8h 46m1 stop
American Airlines Logo
6:52 am - 2:54 pm
CMI
-
SEA
10h 02m1 stop
$591American Airlines
Sat, Dec 27 - Thu, Jan 1
American Airlines Logo
12:14 am - 11:00 am
SEA
-
CMI
8h 46m1 stop
American Airlines Logo
2:57 pm - 9:11 pm
CMI
-
SEA
8h 14m1 stop
$644American Airlines
Sat, Dec 27 - Fri, Jan 2
American Airlines Logo
12:14 am - 11:00 am
SEA
-
CMI
8h 46m1 stop
American Airlines Logo
2:57 pm - 11:08 pm
CMI
-
SEA
10h 11m1 stop
$691American Airlines
Sun, Dec 28 - Sun, Jan 4
American Airlines Logo
12:14 am - 11:00 am
SEA
-
CMI
8h 46m1 stop
American Airlines Logo
2:57 pm - 9:11 pm
CMI
-
SEA
8h 14m1 stop
$711American Airlines
Mon, Dec 29 - Sun, Jan 4
American Airlines Logo
12:14 am - 11:00 am
SEA
-
CMI
8h 46m1 stop
American Airlines Logo
6:00 am - 2:54 pm
CMI
-
SEA
10h 54m2 stops
$741American Airlines
Sat, Dec 27 - Thu, Jan 1

American Airlines flights from Seattle to Champaign

Our best American Airlines deals on Seattle to Champaign flight tickets
American Airlines
Jan 6
SEA6:00 amSeattle/Tacoma Intl
7h 01m
1 stop
CMI3:01 pmChampaign University-Willard
Jan 10
CMI7:03 amChampaign University-Willard
10h 31m
1 stop
SEA3:34 pmSeattle/Tacoma Intl
$428
Find similar
American Airlines
Jan 6
SEA8:04 amSeattle/Tacoma Intl
8h 19m
1 stop
CMI6:23 pmChampaign University-Willard
Jan 10
CMI7:03 amChampaign University-Willard
10h 31m
1 stop
SEA3:34 pmSeattle/Tacoma Intl
$468
Find similar
American Airlines
Dec 27
SEA12:14 amSeattle/Tacoma Intl
8h 46m
1 stop
CMI11:00 amChampaign University-Willard
Jan 1
CMI6:52 amChampaign University-Willard
10h 02m
1 stop
SEA2:54 pmSeattle/Tacoma Intl
$530
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 December 18, 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

Tue 1/6

11:55 am-9:06 pm

1 stop7h 11m

Champaign University-Willard

Sat 1/10

7:03 am-3:34 pm

1 stop10h 31m

$407

SeattleChampaign

SEA - CMI

SEACMI

Seattle/Tacoma Intl

Tue 1/6

6:00 am-3:01 pm

1 stop7h 01m

Champaign University-Willard

Sat 1/10

7:03 am-3:34 pm

1 stop10h 31m

$428

SeattleChampaign

SEA - CMI

SEACMI

Seattle/Tacoma Intl

Tue 1/6

8:04 am-6:23 pm

1 stop8h 19m

Champaign University-Willard

Sat 1/10

7:03 am-3:34 pm

1 stop10h 31m

$468

SeattleChampaign

SEA - CMI

SEACMI

Seattle/Tacoma Intl

Tue 1/6

11:55 am-9:06 pm

1 stop7h 11m

Champaign University-Willard

Sun 1/11

3:45 pm-11:51 pm

1 stop10h 06m

$487

SeattleChampaign

SEA - CMI

SEACMI

Seattle/Tacoma Intl

Sat 12/27

12:14 am-11:00 am

1 stop8h 46m

Champaign University-Willard

Thu 1/1

6:52 am-2:54 pm

1 stop10h 02m

$530

SeattleChampaign

SEA - CMI

SEACMI

Seattle/Tacoma Intl

Sat 12/27

12:14 am-11:00 am

1 stop8h 46m

Champaign University-Willard

Thu 1/1

6:52 am-2:54 pm

1 stop10h 02m

$591

SeattleChampaign

SEA - CMI

SEACMI

Seattle/Tacoma Intl

Sat 12/27

12:14 am-11:00 am

1 stop8h 46m

Champaign University-Willard

Fri 1/2

2:57 pm-9:11 pm

1 stop8h 14m

$644

SeattleChampaign

SEA - CMI

SEACMI

Seattle/Tacoma Intl

Sun 12/28

12:14 am-11:00 am

1 stop8h 46m

Champaign University-Willard

Sun 1/4

2:57 pm-11:08 pm

1 stop10h 11m

$691

SeattleChampaign

SEA - CMI

SEACMI

Seattle/Tacoma Intl

Mon 12/29

12:14 am-11:00 am

1 stop8h 46m

Champaign University-Willard

Sun 1/4

2:57 pm-9:11 pm

1 stop8h 14m

$711

SeattleChampaign

SEA - CMI

SEACMI

Seattle/Tacoma Intl

Sat 12/27

12:14 am-11:00 am

1 stop8h 46m

Champaign University-Willard

Thu 1/1

6:00 am-2:54 pm

2 stops10h 54m

$741

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 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 typical price of a round-trip flight between Seattle and Champaign?

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

Fastest flight time

6h 03m

Direct flights

None
The fastest flight from Seattle to Champaign takes 6h 03m
There are no direct flights from Seattle to Champaign. There are no popular flight routes from Seattle to Champaign.
Search flight deals

  • 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 03m.

  • 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
11,054 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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