$153+ 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 5/12. Fares are subject to change and may not be available on all flights or dates of travel.
CMI — SEA
May 24 — May 311
Round-trip
1 adult, Economy
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Find cheap flights from Champaign to Seattle with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Champaign to Seattle
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Best
Last-minute
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Cheapest flights from Champaign to SeattleExplore 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 24, 2026.
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 24, 2026.
This American Airlines deal was found by Cheapflights users on 4/22. 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 9/66:36 pm
CMI
- SEA
1 stop7h 14m
American Airlines
Wed 9/95:05 am
SEA
- CMI
1 stop7h 14m
American Airlines
Deal found 4/22![American Airlines logo]()
$279
This American Airlines deal was found by Cheapflights users on 4/19. 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 5/266:39 pm
CMI
- SEA
1 stop7h 37m
American Airlines
Tue 6/211:58 pm
SEA
- CMI
1 stop9h 09m
American Airlines
Deal found 4/19![American Airlines logo]()
$306
This United Airlines deal was found by Cheapflights users on 4/21. 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 6/41:32 pm
CMI
- SEA
2 stops10h 27m
United Airlines
Sun 6/711:52 pm
SEA
- CMI
1 stop7h 02m
United Airlines
Deal found 4/21![United Airlines logo]()
$312
This American Airlines deal was found by Cheapflights users on 4/21. 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 11m
American Airlines
Deal found 4/21![American Airlines logo]()
$317
This American Airlines deal was found by Cheapflights users on 4/23. 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.
Fri 5/83:01 pm
CMI
- SEA
1 stop9h 57m
American Airlines
Tue 5/127:10 am
SEA
- CMI
1 stop9h 14m
American Airlines
Deal found 4/23![American Airlines logo]()
$354
This American Airlines deal was found by Cheapflights users on 4/19. 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 6/166:44 pm
CMI
- SEA
1 stop7h 32m
American Airlines
Tue 6/235:10 am
SEA
- CMI
1 stop7h 05m
American Airlines
Deal found 4/19![American Airlines logo]()
$357
This United Airlines deal was found by Cheapflights users on 4/19. 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.
Mon 6/151:32 pm
CMI
- SEA
1 stop7h 34m
United Airlines
Wed 6/2411:00 pm
SEA
- CMI
2 stops11h 50m
United Airlines
Deal found 4/19![United Airlines logo]()
$358
This American Airlines deal was found by Cheapflights users on 4/19. 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 7/2911:56 pm
SEA
- CMI
1 stop9h 11m
American Airlines
Deal found 4/19![American Airlines logo]()
$364
This American Airlines deal was found by Cheapflights users on 4/19. 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 6/136:44 pm
CMI
- SEA
1 stop7h 32m
American Airlines
Tue 6/235:10 am
SEA
- CMI
1 stop7h 05m
American Airlines
Deal found 4/19![American Airlines logo]()
$368
This American Airlines deal was found by Cheapflights users on 4/22. 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 5/73:01 pm
CMI
- SEA
1 stop9h 57m
American Airlines
Mon 5/117:10 am
SEA
- CMI
1 stop9h 14m
American Airlines
Deal found 4/22![American Airlines logo]()
$374
This United Airlines deal was found by Cheapflights users on 4/19. 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.
Wed 6/171:32 pm
CMI
- SEA
1 stop7h 34m
United Airlines
Wed 6/2411:00 pm
SEA
- CMI
2 stops11h 50m
United Airlines
Deal found 4/19![United Airlines logo]()
$384
Best flights from Champaign to SeattleDiscover carefully curated flight deals from Champaign to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 24, 2026.
Discover carefully curated flight deals from Champaign to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 24, 2026.
This United Airlines deal was found by Cheapflights users on 4/21. 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 6/41:32 pm
CMI
- SEA
2 stops10h 27m
United Airlines
Sun 6/711:52 pm
SEA
- CMI
1 stop7h 02m
United Airlines
Deal found 4/21![United Airlines logo]()
$312
This American Airlines deal was found by Cheapflights users on 4/20. 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 6/96:44 pm
CMI
- SEA
1 stop7h 32m
American Airlines
Sat 6/205:10 am
SEA
- CMI
1 stop7h 05m
American Airlines
Deal found 4/20![American Airlines logo]()
$474
This United Airlines deal was found by Cheapflights users on 4/19. 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.
Wed 6/171:32 pm
CMI
- SEA
1 stop7h 34m
United Airlines
Wed 6/2411:00 pm
SEA
- CMI
2 stops11h 50m
United Airlines
Deal found 4/19![United Airlines logo]()
$384
This United Airlines deal was found by Cheapflights users on 4/19. 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.
Sat 7/257:34 pm
CMI
- SEA
1 stop6h 40m
United Airlines
Thu 7/3011:52 pm
SEA
- CMI
1 stop7h 02m
United Airlines
Deal found 4/19![United Airlines logo]()
$414
This United Airlines deal was found by Cheapflights users on 4/19. 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.
Tue 6/169:49 am
CMI
- SEA
2 stops10h 10m
United Airlines
Wed 6/2411:00 pm
SEA
- CMI
2 stops11h 50m
United Airlines
Deal found 4/19![United Airlines logo]()
$418
This American Airlines deal was found by Cheapflights users on 4/23. 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 7/256:36 pm
CMI
- SEA
1 stop6h 59m
American Airlines
Thu 7/305:05 am
SEA
- CMI
1 stop7h 11m
American Airlines
Deal found 4/23![American Airlines logo]()
$539
This United Airlines deal was found by Cheapflights users on 4/19. 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.
Sat 7/251:32 pm
CMI
- SEA
2 stops13h 41m
United Airlines
Wed 7/2911:52 pm
SEA
- CMI
1 stop7h 02m
United Airlines
Deal found 4/19![United Airlines logo]()
$430
This United Airlines deal was found by Cheapflights users on 4/22. 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 7/29:49 am
CMI
- SEA
2 stops14h 10m
United Airlines
Wed 7/85:20 pm
SEA
- CMI
2 stops13h 34m
United Airlines
Deal found 4/22![United Airlines logo]()
$439
This United Airlines deal was found by Cheapflights users on 4/19. 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.
Tue 6/161:32 pm
CMI
- SEA
2 stops11h 38m
United Airlines
Tue 6/2310:40 pm
SEA
- CMI
1 stop8h 14m
United Airlines
Deal found 4/19![United Airlines logo]()
$460
Last-minute flights from Champaign to SeattleDiscover last-minute flight deals from Champaign to Seattle. Data last updated April 24, 2026 and is based on user searches.
Discover last-minute flight deals from Champaign to Seattle. Data last updated April 24, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 4/22. 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 5/16:58 pm
CMI
- SEA
1 stop7h 38m
American Airlines
Thu 5/711:16 am
SEA
- CMI
1 stop8h 19m
American Airlines
Deal found 4/22![American Airlines logo]()
$437
This American Airlines deal was found by Cheapflights users on 4/20. 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
Fri 5/81:19 pm
SEA
- CMI
1 stop6h 16m
American Airlines
Deal found 4/20![American Airlines logo]()
$408
This American Airlines deal was found by Cheapflights users on 4/22. 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 5/73:01 pm
CMI
- SEA
1 stop9h 57m
American Airlines
Mon 5/117:10 am
SEA
- CMI
1 stop9h 14m
American Airlines
Deal found 4/22![American Airlines logo]()
$374
This American Airlines deal was found by Cheapflights users on 4/23. 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.
Fri 5/83:01 pm
CMI
- SEA
1 stop9h 57m
American Airlines
Tue 5/127:10 am
SEA
- CMI
1 stop9h 14m
American Airlines
Deal found 4/23![American Airlines logo]()
$354
This American Airlines deal was found by Cheapflights users on 4/19. 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 5/196:55 pm
CMI
- SEA
1 stop7h 41m
American Airlines
Tue 5/2611:58 pm
SEA
- CMI
1 stop9h 09m
American Airlines
Deal found 4/19![American Airlines logo]()
$403
This American Airlines deal was found by Cheapflights users on 4/19. 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 5/266:39 pm
CMI
- SEA
1 stop7h 37m
American Airlines
Tue 6/211:58 pm
SEA
- CMI
1 stop9h 09m
American Airlines
Deal found 4/19![American Airlines logo]()
$306
This American Airlines deal was found by Cheapflights users on 4/21. 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 11m
American Airlines
Deal found 4/21![American Airlines logo]()
$317
One-way flights from Champaign to SeattleSearch for one-way flight options from Champaign to Seattle. Find affordable one-way fares based on user searches. Data last updated April 24, 2026.
Search for one-way flight options from Champaign to Seattle. Find affordable one-way fares based on user searches. Data last updated April 24, 2026.
This American Airlines deal was found by Cheapflights users on 4/19. 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 5/126:55 pm
CMI
- SEA
1 stop7h 41m
American Airlines
Deal found 4/19![American Airlines logo]()
$153
This American Airlines deal was found by Cheapflights users on 4/19. 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 5/116:55 pm
CMI
- SEA
1 stop7h 41m
American Airlines
Deal found 4/19![American Airlines logo]()
$204
This American Airlines deal was found by Cheapflights users on 4/19. 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 5/186:55 pm
CMI
- SEA
1 stop17h 19m
American Airlines
Deal found 4/19![American Airlines logo]()
$417
This American Airlines deal was found by Cheapflights users on 4/20. 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 5/142:17 pm
CMI
- SEA
2 stops10h 41m
American Airlines
Deal found 4/20![American Airlines logo]()
$832
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 24, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $279 (American Airlines) |
One-way from | $153 (American Airlines) |
Popular in | November |
Cheapest in | September |
Average price | $387 |
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 24, 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
Cheapest round-trip
ChampaignSeattle
CMI - SEA
CMISEA
Champaign University-Willard
Thu 6/4
1:32 pm-9:59 pm
2 stops10h 27m
Seattle/Tacoma Intl
Sun 6/7
11:52 pm-8:54 am
1 stop7h 02m
$312
ChampaignSeattle
CMI - SEA
CMISEA
Champaign University-Willard
Wed 6/17
1:32 pm-7:06 pm
1 stop7h 34m
Seattle/Tacoma Intl
Wed 6/24
11:00 pm-12:50 pm
2 stops11h 50m
$384
Quickest round-trip
ChampaignSeattle
CMI - SEA
CMISEA
Champaign University-Willard
Sat 7/25
7:34 pm-12:14 am
1 stop6h 40m
Seattle/Tacoma Intl
Thu 7/30
11:52 pm-8:54 am
1 stop7h 02m
$414
ChampaignSeattle
CMI - SEA
CMISEA
Champaign University-Willard
Tue 6/16
9:49 am-5:59 pm
2 stops10h 10m
Seattle/Tacoma Intl
Wed 6/24
11:00 pm-12:50 pm
2 stops11h 50m
$418
ChampaignSeattle
CMI - SEA
CMISEA
Champaign University-Willard
Sat 7/25
1:32 pm-1:13 am
2 stops13h 41m
Seattle/Tacoma Intl
Wed 7/29
11:52 pm-8:54 am
1 stop7h 02m
$430
ChampaignSeattle
CMI - SEA
CMISEA
Champaign University-Willard
Thu 7/2
9:49 am-9:59 pm
2 stops14h 10m
Seattle/Tacoma Intl
Wed 7/8
5:20 pm-8:54 am
2 stops13h 34m
$439
ChampaignSeattle
CMI - SEA
CMISEA
Champaign University-Willard
Tue 6/16
1:32 pm-11:10 pm
2 stops11h 38m
Seattle/Tacoma Intl
Tue 6/23
10:40 pm-8:54 am
1 stop8h 14m
$460
ChampaignSeattle
CMI - SEA
CMISEA
Champaign University-Willard
Tue 6/9
6:44 pm-12:16 am
1 stop7h 32m
Seattle/Tacoma Intl
Sat 6/20
5:10 am-2:15 pm
1 stop7h 05m
$474
ChampaignSeattle
CMI - SEA
CMISEA
Champaign University-Willard
Sat 7/25
6:36 pm-11:35 pm
1 stop6h 59m
Seattle/Tacoma Intl
Thu 7/30
5:05 am-2:16 pm
1 stop7h 11m
$539
Cheapest one-way
Quickest one-way
ChampaignSeattle
CMI - SEA
CMISEA
Champaign University-Willard
Thu 5/14
6:55 pm-12:36 am
1 stop7h 41m
$153
Showing 1-10 of 13 resultsSorted 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.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- 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.
CMI-SEA
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
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 24, 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.
Overall
7.1
Comfort
7.2
Food
6.4
Crew
7.9
Boarding
7.5
Entertainment
6.9
Reviews
1 / 20
4.0
OkayElizabeth,Mar 2026
ORD - MIA
Overall
7.1
Comfort
7.2
Food
6.4
Crew
7.9
Boarding
7.5
Entertainment
6.9
Reviews
1 / 20
4.0
OkayElizabeth,Mar 2026
ORD - MIA
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.
Traveling to a place near Seattle?
Book flights to Seattle if you plan to visit one of these locationsSeaTac
Tacoma
Ocean Shores
Olympia
Lynnwood
Lacey
Edmonds
Leavenworth
Snoqualmie
Kent
Tumwater
Tukwila
Puyallup
Renton
Kirkland
Ellensburg
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Shoreline
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Champaign and Seattle flights
Browse other Champaign and Seattle flight options. Last updated on April 24, 2026.
Other flights from Champaign
Browse through other flights departing from Champaign. Flights are based on user searches made on Cheapflights and were last updated on April 24, 2026.
Popular flight searches
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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 24, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$280 | Average$493 | FlexibilityNo cancel fee | On-time71% |