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$166+ 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 3/10. Fares are subject to change and may not be available on all flights or dates of travel.
CMI — SEA
feb. 25 — mar. 41
mar. 2/25
mar. 3/4
1 adult, Economy
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1. Tell us where you want to go
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Cheap 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 febrero 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$305
(American Airlines)

One-way from

$166
(American Airlines)

Popular in

April

Cheapest in

November

Average price

$508
Provider with most accurate pricing for Champaign University-Willard-Seattle/Tacoma Intl flight deals.
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Provider most trusted by Cheapflights users for Champaign University-Willard-Seattle/Tacoma Intl flights.
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From Champaign University-Willard to Seattle/Tacoma Intl
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One-way flight from Champaign University-Willard to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($36 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($22 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Find 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 febrero 20, 2025.

This American Airlines deal was found by Cheapflights users on 2/20. 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.
vie. 3/73:15 pmCMI - SEA
1 stop8h 03mAmerican Airlines
mar. 3/115:22 amSEA - CMI
1 stop7h 23mAmerican Airlines
Deal found 2/20$305

Find flights from Champaign to Seattle within your budget

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 febrero 20, 2025.

Fly from

Champaign

Fly to

Seattle

Route

Depart

Return

Price

ChampaignSeattle

CMI - SEA

CMISEA

Champaign University-Willard

vie. 3/7

3:15 pm-9:18 pm

1 stop8h 03m

Seattle/Tacoma Intl

mar. 3/11

5:22 am-2:45 pm

1 stop7h 23m

$305

ChampaignSeattle

CMI - SEA

CMISEA

Champaign University-Willard

lun. 3/10

3:15 pm-9:10 pm

1 stop7h 55m

$166

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

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 February.
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.

Travel insights for flights from Champaign to Seattle

Get recent, data-driven insights about flights from Champaign to Seattle including ideal travel times, pricing trends, and more.

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

Currently, January is the cheapest month in which you can book a flight from Champaign to Seattle (average of $238). Flying from Champaign to Seattle in July is currently the most expensive (average of $411). 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.

Rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Seattle ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.

Temperature in Seattle by month

Plan your trip to Seattle by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

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 febrero 20, 2025.
American Airlines
7.2
Good
10,000 reviews

Entertainment

7.0

Boarding

7.5

Food

6.5

Comfort

7.3

Overall

7.2

Crew

8.0

Reviews

1 / 20

10.0
Excellent

Anonymous,Jan 2025

PIT - DFW

Due to gate changes,we nearly missed our flight. The gate agent reassigned our seats and would NOT give us our assigned seats,but she did honor that same request to the man who arrived after us. Her rudeness and difficulty was not appropriate.

American Airlines
7.2
Good
10,000 reviews
American Airlines
7.2
Good
10,000 reviews

Entertainment

7.0

Boarding

7.5

Food

6.5

Comfort

7.3

Overall

7.2

Crew

8.0

Reviews

1 / 20

10.0
Excellent

Anonymous,Jan 2025

PIT - DFW

Due to gate changes,we nearly missed our flight. The gate agent reassigned our seats and would NOT give us our assigned seats,but she did honor that same request to the man who arrived after us. Her rudeness and difficulty was not appropriate.

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.

  • 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 $305. Users have found that American Airlines is 33% 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, January is the cheapest month in which you can book a flight from Champaign to Seattle (average of $238). Flying from Champaign to Seattle in July is currently the most expensive (average of $411). 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 Champaign?

Book flights to Champaign if you plan to visit one of these locations
SeaTac
Tukwila
Renton
Tacoma
Lacey
Ocean Shores
Leavenworth
Olympia
Federal Way
Centralia
Marysville
Cle Elum
Mukilteo
Aberdeen
Lakewood
Issaquah
Shoreline
Lynnwood
Shelton
Silverdale

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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 febrero 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$220Average$402FlexibilityNo cancel feeOn-time71%
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