$169+ 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 8/23. Fares are subject to change and may not be available on all flights or dates of travel.
CMI — SEA
Aug 7 — Aug 141
Round-trip
1 adult, Economy
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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
Cheapest
Best
Last-minute
One-way
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 July 8, 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 July 8, 2026.
This American Airlines deal was found by Cheapflights users on 7/8. 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.
Fri 8/214:54 pm
CMI
- SEA
1 stop9h 05m
American Airlines
Fri 8/285:00 am
SEA
- CMI
1 stop7h 15m
American Airlines
Deal found 7/8![American Airlines logo]()
$338
This American Airlines deal was found by Cheapflights users on 7/5. 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.
Sat 8/156:36 pm
CMI
- SEA
1 stop7h 37m
American Airlines
Thu 8/2011:56 pm
SEA
- CMI
1 stop9h 15m
American Airlines
Deal found 7/5![American Airlines logo]()
$373
This American Airlines deal was found by Cheapflights users on 7/5. 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.
Sat 9/122:40 pm
CMI
- SEA
1 stop9h 12m
American Airlines
Fri 9/1810:59 am
SEA
- CMI
1 stop7h 57m
American Airlines
Deal found 7/5![American Airlines logo]()
$433
This deal was found by Cheapflights users on 7/5. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/116:41 pm
CMI
- SEA
1 stop7h 30m
American Airlines
Thu 9/1710:59 am
SEA
- CMI
1 stop7h 57m
American Airlines
Deal found 7/5![American Airlines logo]()
$473
This American Airlines deal was found by Cheapflights users on 7/4. 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 8/26:36 pm
CMI
- SEA
1 stop8h 16m
American Airlines
Sat 8/811:56 pm
SEA
- CMI
1 stop9h 15m
American Airlines
Deal found 7/4![American Airlines logo]()
$490
This American Airlines deal was found by Cheapflights users on 7/8. 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.
Fri 7/106:28 pm
CMI
- SEA
1 stop8h 31m
American Airlines
Wed 7/225:05 am
SEA
- CMI
1 stop7h 11m
American Airlines
Deal found 7/8![American Airlines logo]()
$493
This American Airlines deal was found by Cheapflights users on 7/5. 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.
Fri 9/116:41 pm
CMI
- SEA
1 stop7h 30m
American Airlines
Sat 9/1910:17 am
SEA
- CMI
1 stop9h 29m
American Airlines
Deal found 7/5![American Airlines logo]()
$509
This deal was found by Cheapflights users on 7/7. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/136:41 pm
CMI
- SEA
1 stop7h 30m
American Airlines
Thu 9/1710:59 am
SEA
- CMI
1 stop7h 57m
American Airlines
Deal found 7/7![American Airlines logo]()
$543
This American Airlines deal was found by Cheapflights users on 7/5. 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 7/196:36 pm
CMI
- SEA
1 stop8h 16m
American Airlines
Mon 7/2011:56 pm
SEA
- CMI
1 stop9h 11m
American Airlines
Deal found 7/5![American Airlines logo]()
$570
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 July 8, 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 July 8, 2026.
This American Airlines deal was found by Cheapflights users on 7/7. 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.
Mon 8/244:54 pm
CMI
- SEA
1 stop9h 05m
American Airlines
Tue 8/255:00 am
SEA
- CMI
1 stop7h 15m
American Airlines
Deal found 7/7![American Airlines logo]()
$338
This American Airlines deal was found by Cheapflights users on 7/8. 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.
Fri 8/214:54 pm
CMI
- SEA
1 stop9h 05m
American Airlines
Fri 8/285:00 am
SEA
- CMI
1 stop7h 15m
American Airlines
Deal found 7/8![American Airlines logo]()
$338
This American Airlines deal was found by Cheapflights users on 7/6. 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.
Sat 10/37:16 am
CMI
- SEA
1 stop9h 35m
American Airlines
Tue 10/610:31 am
SEA
- CMI
1 stop7h 54m
American Airlines
Deal found 7/6![American Airlines logo]()
$338
This American Airlines deal was found by Cheapflights users on 7/5. 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.
Sat 9/121:23 pm
CMI
- SEA
1 stop10h 13m
American Airlines
Sat 9/1910:17 am
SEA
- CMI
1 stop9h 29m
American Airlines
Deal found 7/5![American Airlines logo]()
$509
This deal was found by Cheapflights users on 7/7. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/136:41 pm
CMI
- SEA
1 stop7h 30m
American Airlines
Thu 9/1710:59 am
SEA
- CMI
1 stop7h 57m
American Airlines
Deal found 7/7![American Airlines logo]()
$543
This deal was found by Cheapflights users on 7/7. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/116:41 pm
CMI
- SEA
1 stop7h 30m
American Airlines
Fri 9/1810:59 am
SEA
- CMI
1 stop7h 57m
American Airlines
Deal found 7/7![American Airlines logo]()
$579
This deal was found by Cheapflights users on 7/7. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/136:41 pm
CMI
- SEA
1 stop7h 30m
American Airlines
Sat 9/1910:59 am
SEA
- CMI
1 stop7h 57m
American Airlines
Deal found 7/7![American Airlines logo]()
$590
This American Airlines deal was found by Cheapflights users on 7/5. 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.
Fri 9/117:16 am
CMI
- SEA
2 stops15h 13m
American Airlines
Thu 9/1710:59 am
SEA
- CMI
1 stop7h 57m
American Airlines
Deal found 7/5![American Airlines logo]()
$678
Last-minute flights from Champaign to SeattleDiscover last-minute flight deals from Champaign to Seattle. Data last updated July 8, 2026 and is based on user searches.
Discover last-minute flight deals from Champaign to Seattle. Data last updated July 8, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 7/8. 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.
Fri 7/106:28 pm
CMI
- SEA
1 stop8h 31m
American Airlines
Wed 7/225:05 am
SEA
- CMI
1 stop7h 11m
American Airlines
Deal found 7/8![American Airlines logo]()
$493
This American Airlines deal was found by Cheapflights users on 7/5. 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 7/196:36 pm
CMI
- SEA
1 stop8h 16m
American Airlines
Mon 7/2011:56 pm
SEA
- CMI
1 stop9h 11m
American Airlines
Deal found 7/5![American Airlines logo]()
$570
This American Airlines deal was found by Cheapflights users on 7/4. 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 8/26:36 pm
CMI
- SEA
1 stop8h 16m
American Airlines
Sat 8/811:56 pm
SEA
- CMI
1 stop9h 15m
American Airlines
Deal found 7/4![American Airlines logo]()
$490
This American Airlines deal was found by Cheapflights users on 7/5. 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.
Sat 8/156:36 pm
CMI
- SEA
1 stop7h 37m
American Airlines
Thu 8/2011:56 pm
SEA
- CMI
1 stop9h 15m
American Airlines
Deal found 7/5![American Airlines logo]()
$373
This American Airlines deal was found by Cheapflights users on 7/8. 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.
Fri 8/214:54 pm
CMI
- SEA
1 stop9h 05m
American Airlines
Fri 8/285:00 am
SEA
- CMI
1 stop7h 15m
American Airlines
Deal found 7/8![American Airlines logo]()
$338
This American Airlines deal was found by Cheapflights users on 7/7. 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.
Mon 8/242:47 pm
CMI
- SEA
2 stops10h 34m
American Airlines
Tue 8/255:00 am
SEA
- CMI
1 stop7h 15m
American Airlines
Deal found 7/7![American Airlines logo]()
$936
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 July 8, 2026.
Search for one-way flight options from Champaign to Seattle. Find affordable one-way fares based on user searches. Data last updated July 8, 2026.
This American Airlines deal was found by Cheapflights users on 7/3. 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 8/234:52 pm
CMI
- SEA
1 stop9h 21m
American Airlines
Deal found 7/3![American Airlines logo]()
$169
This American Airlines deal was found by Cheapflights users on 7/8. 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 9/32:47 pm
CMI
- SEA
1 stop9h 34m
American Airlines
Deal found 7/8![American Airlines logo]()
$274
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 July 8, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $338 (American Airlines) |
One-way from | $169 (American Airlines) |
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 July 8, 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
Mon 8/24
4:54 pm-11:59 pm
1 stop9h 05m
Seattle/Tacoma Intl
Tue 8/25
5:00 am-2:15 pm
1 stop7h 15m
$338
ChampaignSeattle
CMI - SEA
CMISEA
Champaign University-Willard
Fri 8/21
4:54 pm-11:59 pm
1 stop9h 05m
Seattle/Tacoma Intl
Fri 8/28
5:00 am-2:15 pm
1 stop7h 15m
$338
ChampaignSeattle
CMI - SEA
CMISEA
Champaign University-Willard
Sat 10/3
7:16 am-2:51 pm
1 stop9h 35m
Seattle/Tacoma Intl
Tue 10/6
10:31 am-8:25 pm
1 stop7h 54m
$338
ChampaignSeattle
CMI - SEA
CMISEA
Champaign University-Willard
Sat 9/12
1:23 pm-9:36 pm
1 stop10h 13m
Seattle/Tacoma Intl
Sat 9/19
10:17 am-9:46 pm
1 stop9h 29m
$509
Quickest round-trip
ChampaignSeattle
CMI - SEA
CMISEA
Champaign University-Willard
Sun 9/13
6:41 pm-12:11 am
1 stop7h 30m
Seattle/Tacoma Intl
Thu 9/17
10:59 am-8:56 pm
1 stop7h 57m
$543
ChampaignSeattle
CMI - SEA
CMISEA
Champaign University-Willard
Fri 9/11
6:41 pm-12:11 am
1 stop7h 30m
Seattle/Tacoma Intl
Fri 9/18
10:59 am-8:56 pm
1 stop7h 57m
$579
ChampaignSeattle
CMI - SEA
CMISEA
Champaign University-Willard
Sun 9/13
6:41 pm-12:11 am
1 stop7h 30m
Seattle/Tacoma Intl
Sat 9/19
10:59 am-8:56 pm
1 stop7h 57m
$590
ChampaignSeattle
CMI - SEA
CMISEA
Champaign University-Willard
Fri 9/11
7:16 am-8:29 pm
2 stops15h 13m
Seattle/Tacoma Intl
Thu 9/17
10:59 am-8:56 pm
1 stop7h 57m
$678
Cheapest one-way
Quickest one-way
ChampaignSeattle
CMI - SEA
CMISEA
Champaign University-Willard
Sun 8/23
4:52 pm-12:13 am
1 stop9h 21m
$169
ChampaignSeattle
CMI - SEA
CMISEA
Champaign University-Willard
Thu 9/3
2:47 pm-10:21 pm
1 stop9h 34m
$274
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 July.
| 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.
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 July 8, 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.
Food
6.4
Comfort
7.2
Crew
7.9
Overall
7.1
Boarding
7.5
Entertainment
6.8
Reviews
1 / 20
4.0
OkayElizabeth,Mar 2026
ORD - MIA
Food
6.4
Comfort
7.2
Crew
7.9
Overall
7.1
Boarding
7.5
Entertainment
6.8
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
Lacey
Leavenworth
Olympia
Ocean Shores
Edmonds
Snoqualmie
Tumwater
Tukwila
Renton
Kent
Lynnwood
Ellensburg
Fife
Marysville
Lakewood
Issaquah
Shoreline
Centralia
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Champaign and Seattle flights
Browse other Champaign and Seattle flight options. Last updated on July 8, 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 July 8, 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 July 8, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$254 | Average$538 | FlexibilityNo cancel fee | On-time71% |