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$174+ Cheap flights from Seattle to Champaign (SEA - CMI)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/8. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CMI
Aug 26 — Sep 21
Wed 8/26
Wed 9/2
1 adult, Economy
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Cheap flight deals from Seattle to Champaign

Cheapest flights from Seattle to Champaign
Explore the most affordable flight options available from Seattle to Champaign. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 27, 2026.

This American Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/2310:59 am
SEA
-
CMI
1 stop7h 57m
American Airlines
Mon 9/286:41 pm
CMI
-
SEA
1 stop7h 30m
American Airlines
Deal found 7/27$348
This American Airlines deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/1511:56 pm
SEA
-
CMI
1 stop9h 15m
American Airlines
Wed 8/194:54 pm
CMI
-
SEA
1 stop9h 05m
American Airlines
Deal found 7/23$466
This American Airlines deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/135:50 am
SEA
-
CMI
1 stop8h 34m
American Airlines
Sat 8/156:36 pm
CMI
-
SEA
1 stop7h 37m
American Airlines
Deal found 7/25$483
This American Airlines deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1011:56 pm
SEA
-
CMI
1 stop9h 15m
American Airlines
Mon 8/174:54 pm
CMI
-
SEA
1 stop9h 05m
American Airlines
Deal found 7/23$484
This American Airlines deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/145:50 am
SEA
-
CMI
1 stop8h 34m
American Airlines
Tue 8/184:54 pm
CMI
-
SEA
1 stop9h 05m
American Airlines
Deal found 7/25$489
This American Airlines deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/135:00 am
SEA
-
CMI
1 stop7h 15m
American Airlines
Wed 8/194:54 pm
CMI
-
SEA
1 stop9h 05m
American Airlines
Deal found 7/25$518
This American Airlines deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/711:48 am
SEA
-
CMI
1 stop8h 12m
American Airlines
Wed 8/124:54 pm
CMI
-
SEA
1 stop9h 05m
American Airlines
Deal found 7/25$534
This American Airlines deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/115:00 am
SEA
-
CMI
1 stop7h 15m
American Airlines
Sat 8/156:36 pm
CMI
-
SEA
1 stop7h 37m
American Airlines
Deal found 7/26$535
This American Airlines deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/55:50 am
SEA
-
CMI
1 stop8h 34m
American Airlines
Sat 8/156:36 pm
CMI
-
SEA
1 stop7h 37m
American Airlines
Deal found 7/25$554
This American Airlines deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/611:56 pm
SEA
-
CMI
1 stop9h 15m
American Airlines
Fri 8/144:54 pm
CMI
-
SEA
1 stop9h 05m
American Airlines
Deal found 7/25$563

Find flight deals from Seattle to Champaign

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Champaign (CMI). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$348
(American Airlines)

One-way from

$174
(American Airlines)

Popular in

May

Cheapest in

March

Average price

$737
Provider with most accurate pricing for Seattle/Tacoma Intl-Champaign University-Willard flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Champaign University-Willard flights.
Search Deals
From Seattle/Tacoma Intl to Champaign University-Willard
Search Deals
One-way flight from Seattle/Tacoma Intl to Champaign University-Willard
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($138 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($29 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated July 27, 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 - CMI

SEACMI

Seattle/Tacoma Intl

Wed 9/23

10:59 am-8:56 pm

1 stop7h 57m

Champaign University-Willard

Mon 9/28

6:41 pm-12:11 am

1 stop7h 30m

$348

SeattleChampaign

SEA - CMI

SEACMI

Seattle/Tacoma Intl

Sat 8/15

11:56 pm-11:11 am

1 stop9h 15m

Champaign University-Willard

Wed 8/19

4:54 pm-11:59 pm

1 stop9h 05m

$466
Quickest round-trip

SeattleChampaign

SEA - CMI

SEACMI

Seattle/Tacoma Intl

Tue 8/11

5:00 am-2:15 pm

1 stop7h 15m

Champaign University-Willard

Sat 8/15

6:36 pm-12:13 am

1 stop7h 37m

$535

SeattleChampaign

SEA - CMI

SEACMI

Seattle/Tacoma Intl

Tue 12/29

10:31 am-8:25 pm

1 stop7h 54m

Champaign University-Willard

Sat 1/2

6:48 pm-12:35 am

1 stop7h 47m

$656

SeattleChampaign

SEA - CMI

SEACMI

Seattle/Tacoma Intl

Sun 8/16

11:56 pm-11:11 am

1 stop9h 15m

Champaign University-Willard

Wed 8/19

4:54 pm-11:59 pm

1 stop9h 05m

$687

SeattleChampaign

SEA - CMI

SEACMI

Seattle/Tacoma Intl

Wed 8/12

2:53 pm-2:15 pm

2 stops21h 22m

Champaign University-Willard

Fri 8/21

4:54 pm-11:59 pm

1 stop9h 05m

$708

SeattleChampaign

SEA - CMI

SEACMI

Seattle/Tacoma Intl

Sun 8/30

5:00 am-2:15 pm

1 stop7h 15m

Champaign University-Willard

Wed 9/9

7:05 am-3:57 pm

2 stops10h 52m

$808
Cheapest one-way
Quickest one-way

SeattleChampaign

SEA - CMI

SEACMI

Seattle/Tacoma Intl

Tue 12/8

10:31 am-8:25 pm

1 stop7h 54m

$174

SeattleChampaign

SEA - CMI

SEACMI

Seattle/Tacoma Intl

Fri 8/21

5:50 am-4:24 pm

1 stop8h 34m

$279

SeattleChampaign

SEA - CMI

SEACMI

Seattle/Tacoma Intl

Thu 8/6

10:19 am-8:28 pm

1 stop8h 09m

$371

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/24

Showing 1-10 of 15 resultsSorted by cheapest first
1
2

Compare providers for flights from Seattle to Champaign

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Champaign in July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Seattle-Champaign flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Champaign flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Champaign flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Champaign flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Champaign flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Seattle to Champaign

Have a flexible travel schedule? Discover the best time to fly to Champaign from Seattle with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Reviews of airlines servicing Champaign

Get insights into the airlines that provide service to Champaign. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Champaign. Reviews last updated July 27, 2026.
Get a feel of what it's like to fly with American Airlines from Seattle to Champaign by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.1
Good
11,837 reviews

Boarding

7.5

Comfort

7.2

Overall

7.1

Crew

7.9

Entertainment

6.8

Food

6.4

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

BNA - ORD

My flight was 8 hours delayed, so I missed my connecting flight to Dublin. I understand it’s not the staff’s fault but the lack of sympathy and apology was appalling. I had been sat in the airport since 4am until 3pm and they did not seem understanding. Not good. Need better customer service.
American Airlines
7.1
Good
11,837 reviews
American Airlines
7.1
Good
11,837 reviews

Boarding

7.5

Comfort

7.2

Overall

7.1

Crew

7.9

Entertainment

6.8

Food

6.4

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

BNA - ORD

My flight was 8 hours delayed, so I missed my connecting flight to Dublin. I understand it’s not the staff’s fault but the lack of sympathy and apology was appalling. I had been sat in the airport since 4am until 3pm and they did not seem understanding. Not good. Need better customer service.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Champaign. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Seattle to Champaign?

    A quick flight from Seattle to Champaign can take about 7h 57m. American Airlines provides one of the quickest options available for as low as $348. There are 1757 mi between Seattle and Champaign.

  • What is the cheapest airline to fly from Seattle to Champaign round-trip?

    According to our current data, American Airlines ($356), offers the cheapest pricing from Seattle to Champaign. You may be able to fly from Seattle to Champaign for 38% less than the average price by searching for this airline.

  • Can I find deals for flights from Seattle to Champaign that include hotel bookings?

    Yes. In addition to deals on Seattle to Champaign flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Champaign?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Champaign.

  • Can I find deals for business class flights from Seattle to Champaign?

    Yes. Cheapflights offers flight deals from Seattle to Champaign by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Champaign?

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

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Top airline flying from Seattle to Champaign

Discover the top airline that operate flights from Seattle to Champaign. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$356Average$559FlexibilityNo cancel feeOn-time71%

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