Seattle

$289+ Cheap flights from Champaign to Seattle (CMI - SEA)

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 9/3. Fares are subject to change and may not be available on all flights or dates of travel.
CMI — SEA
May 10 — May 171
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Cheap flight deals from Champaign to Seattle

Cheapest flights from Champaign to Seattle
Explore the most affordable flight options available from Champaign to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 10, 2026.

This American Airlines deal was found by Cheapflights users on 4/7. 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 5/76:55 pm
CMI
-
SEA
1 stop7h 41m
American Airlines
Sat 5/3011:58 pm
SEA
-
CMI
1 stop9h 09m
American Airlines
Deal found 4/7$306
This American Airlines deal was found by Cheapflights users on 4/6. 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 5/296:39 pm
CMI
-
SEA
1 stop7h 37m
American Airlines
Sat 6/611:58 pm
SEA
-
CMI
1 stop9h 12m
American Airlines
Deal found 4/6$317
This American Airlines deal was found by Cheapflights users on 4/8. 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 5/286:39 pm
CMI
-
SEA
1 stop7h 37m
American Airlines
Mon 6/15:10 am
SEA
-
CMI
1 stop7h 05m
American Airlines
Deal found 4/8$318
This American Airlines deal was found by Cheapflights users on 4/6. 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 6/36:39 pm
CMI
-
SEA
1 stop7h 37m
American Airlines
Tue 6/911:58 pm
SEA
-
CMI
1 stop9h 12m
American Airlines
Deal found 4/6$353
This American Airlines deal was found by Cheapflights users on 4/5. 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.
Sun 5/36:58 pm
CMI
-
SEA
1 stop7h 38m
American Airlines
Sun 5/107:10 am
SEA
-
CMI
1 stop9h 14m
American Airlines
Deal found 4/5$357
This American Airlines deal was found by Cheapflights users on 4/10. 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 7/256:36 pm
CMI
-
SEA
1 stop6h 59m
American Airlines
Wed 7/295:05 am
SEA
-
CMI
1 stop7h 11m
American Airlines
Deal found 4/10$364
This American Airlines deal was found by Cheapflights users on 4/9. 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 5/46:58 pm
CMI
-
SEA
1 stop7h 38m
American Airlines
Thu 5/71:19 pm
SEA
-
CMI
1 stop6h 16m
American Airlines
Deal found 4/9$377
This United Airlines deal was found by Cheapflights users on 4/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/141:32 pm
CMI
-
SEA
1 stop7h 27m
United Airlines
Sat 8/226:51 pm
SEA
-
CMI
2 stops12h 03m
United Airlines
Deal found 4/6$403
This American Airlines deal was found by Cheapflights users on 4/7. 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 4/226:58 pm
CMI
-
SEA
1 stop7h 38m
American Airlines
Sun 4/2611:16 am
SEA
-
CMI
1 stop8h 19m
American Airlines
Deal found 4/7$408
This United Airlines deal was found by Cheapflights users on 4/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/49:49 am
CMI
-
SEA
2 stops14h 10m
United Airlines
Mon 6/811:52 pm
SEA
-
CMI
1 stop7h 02m
United Airlines
Deal found 4/9$412

Find flight deals from Champaign to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Champaign (CMI) to Seattle (SEA). 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 April 10, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$306
(American Airlines)

One-way from

$289
(United Airlines)

Popular in

November

Cheapest in

September

Average price

$387
Provider with most accurate pricing for Champaign University-Willard-Seattle/Tacoma Intl flight deals.
Provider most trusted by Cheapflights users for Champaign University-Willard-Seattle/Tacoma Intl flights.
From Champaign University-Willard to Seattle/Tacoma Intl
One-way flight from Champaign University-Willard to Seattle/Tacoma Intl
Highest demand for flights based on searches. 36% potential increase in price ($349 potential increase over avg. RT price).
Cheapest flight prices on average. 15% potential price decrease ($82 potential savings vs. average RT price).
Average for round-trip flights in April 2026

Cheapflights Fare Finder

 
Customize your flight search to find flights from Champaign to Seattle 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 April 10, 2026.
Use the filters below to find and compare flights from Champaign to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChampaignSeattle

CMI - SEA

CMISEA

Champaign University-Willard

Fri 5/29

6:39 pm-12:16 am

1 stop7h 37m

Seattle/Tacoma Intl

Thu 6/4

10:23 am-10:01 pm

1 stop9h 38m

$317

ChampaignSeattle

CMI - SEA

CMISEA

Champaign University-Willard

Fri 4/24

6:58 pm-12:36 am

1 stop7h 38m

Seattle/Tacoma Intl

Tue 4/28

10:25 am-9:07 pm

1 stop8h 42m

$408

ChampaignSeattle

CMI - SEA

CMISEA

Champaign University-Willard

Thu 6/4

1:32 pm-9:59 pm

2 stops10h 27m

Seattle/Tacoma Intl

Mon 6/8

11:52 pm-8:54 am

1 stop7h 02m

$412
Quickest round-trip

ChampaignSeattle

CMI - SEA

CMISEA

Champaign University-Willard

Sun 7/19

7:34 pm-12:14 am

1 stop6h 40m

Seattle/Tacoma Intl

Thu 7/30

10:40 pm-8:54 am

1 stop8h 14m

$427

ChampaignSeattle

CMI - SEA

CMISEA

Champaign University-Willard

Fri 8/14

9:49 am-9:56 pm

2 stops14h 07m

Seattle/Tacoma Intl

Sat 8/22

6:51 pm-8:54 am

2 stops12h 03m

$437

ChampaignSeattle

CMI - SEA

CMISEA

Champaign University-Willard

Fri 6/26

7:34 pm-12:14 am

1 stop6h 40m

Seattle/Tacoma Intl

Fri 7/3

10:40 pm-8:54 am

1 stop8h 14m

$483

ChampaignSeattle

CMI - SEA

CMISEA

Champaign University-Willard

Sat 7/25

6:30 am-7:38 pm

2 stops15h 08m

Seattle/Tacoma Intl

Thu 7/30

10:40 pm-8:54 am

1 stop8h 14m

$488

ChampaignSeattle

CMI - SEA

CMISEA

Champaign University-Willard

Sat 7/25

6:30 am-7:38 pm

2 stops15h 08m

Seattle/Tacoma Intl

Wed 7/29

10:40 pm-8:54 am

1 stop8h 14m

$488

ChampaignSeattle

CMI - SEA

CMISEA

Champaign University-Willard

Wed 6/3

6:30 am-7:18 pm

2 stops14h 48m

Seattle/Tacoma Intl

Tue 6/9

5:04 pm-8:54 am

2 stops13h 50m

$493
Cheapest one-way
Quickest one-way

ChampaignSeattle

CMI - SEA

CMISEA

Champaign University-Willard

Thu 9/3

1:32 pm-11:24 pm

2 stops11h 52m

$289

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/6

Sorted by cheapest first

Compare providers for flights from Champaign to Seattle

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 Champaign to Seattle in April.
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 Champaign-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Champaign-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Champaign-Seattle flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Champaign-Seattle 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 Champaign-Seattle 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 Champaign to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Champaign 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.

Cheapflights Insights

Everything you need to know about your flight from Champaign to Seattle

What is the cheapest month to book a flight from Champaign to Seattle?

Currently, October is the cheapest month in which you can book a flight from Champaign to Seattle (average of $234). Flying from Champaign to Seattle in January is currently the most expensive (average of $383). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. 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 Seattle. Reviews last updated April 10, 2026.
Get a feel of what it's like to fly with American Airlines from Champaign to Seattle by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Boarding

7.5

Entertainment

6.8

Overall

7.1

Crew

7.9

Comfort

7.2

Food

6.4

Reviews

1 / 20
4.0
Okay

Elizabeth,Mar 2026

ORD - MIA

Staff was rude and flight attendants 2 out of 3 looked like they had just been thru a hurricane.

Boarding

7.5

Entertainment

6.8

Overall

7.1

Crew

7.9

Comfort

7.2

Food

6.4

Reviews

1 / 20
4.0
Okay

Elizabeth,Mar 2026

ORD - MIA

Staff was rude and flight attendants 2 out of 3 looked like they had just been thru a hurricane.

Related info for your journey

Find useful and relevant information for your journey from Champaign to Seattle. 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 Champaign to Seattle?

    A quick flight from Champaign to Seattle can take about 7h 37m. American Airlines provides one of the quickest options available for as low as $317. There are 1757 mi between Champaign and Seattle. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    Cheapflights users have booked flights from Champaign to Seattle round-trip from $280. Users have found that American Airlines is 54% cheaper than the other options available to this destination.

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

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

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

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

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

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

  • What is the cheapest month to book a flight from Champaign to Seattle?

    Currently, October is the cheapest month in which you can book a flight from Champaign to Seattle (average of $234). Flying from Champaign to Seattle in January is currently the most expensive (average of $383). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
SeaTac
Tacoma
Ocean Shores
Olympia
Kent
Lynnwood
Lacey
Edmonds
Leavenworth
Snoqualmie
Tumwater
Tukwila
Renton
Puyallup
Kirkland
Ellensburg
Fife
Lakewood
Issaquah
Shoreline

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Champaign to Seattle

Discover the top airline that operate flights from Champaign to Seattle. 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 April 10, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$280Average$493FlexibilityNo cancel feeOn-time71%

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