CMI - SEA

$728 Find Cheap Flights from Champaign to Seattle

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Champaign to Seattle departing on 3/20. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Champaign to Seattle, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Champaign to Seattle, as well as popular online travel agencies
In the last 7 days travelers have searched 41,299,237 times on KAYAK, and here is why:

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

Cheap Flight Deals from Champaign to Seattle (CMI-SEA)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Champaign to Seattle that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from Champaign to Seattle

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Champaign to Seattle.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
3:15 pm - 10:59 pmCMI-SEA
9h 44m1 stop
1:25 pm - 9:37 pmSEA-CMI
6h 12m1 stop
$728American Airlines
Find Deal
Thu, Mar 20 - Sun, Mar 23
3:15 pm - 10:59 pmCMI-SEA
9h 44m1 stop
11:59 pm - 12:37 pmSEA-CMI
10h 38m2 stops
$883American Airlines
Find Deal
Thu, Mar 20 - Sun, Mar 23
3:15 pm - 9:11 pmCMI-SEA
7h 56m1 stop
12:59 am - 2:45 pmSEA-CMI
11h 46m1 stop
$1,080American Airlines
Find Deal
Thu, Mar 20 - Sat, Mar 22
6:45 am - 1:00 pmCMI-SEA
8h 15m1 stop
12:59 am - 12:37 pmSEA-CMI
9h 38m2 stops
$1,085American Airlines
Find Deal
Thu, Mar 20 - Sat, Mar 22
1:09 pm - 9:11 pmCMI-SEA
10h 02m2 stops
11:59 pm - 12:37 pmSEA-CMI
10h 38m2 stops
$1,312American Airlines
Find Deal
Thu, Mar 20 - Sun, Mar 23
1:09 pm - 9:11 pmCMI-SEA
10h 02m2 stops
12:59 am - 12:37 pmSEA-CMI
9h 38m2 stops
$1,433American Airlines
Find Deal
Thu, Mar 20 - Sat, Mar 22

Flights from Champaign to Seattle - Travel Insights & Trends

Get data-powered insights and trends into flights from Champaign to Seattle to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Champaign to Seattle?

The average price of all round-trip flights from Champaign to Seattle clicked on KAYAK for each day over the last 12 months.
Your flight ticket price will generally be cheaper if you fly to Seattle on a Sunday and more expensive on a Friday. On your return trip to Champaign, you should consider flying back on a Thursday, and avoid Tuesdays for better deals.

What is the cheapest month to fly from Champaign to Seattle?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Champaign to Seattle, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Champaign to Seattle is November, where tickets cost $321 (return) on average. On the other hand, the most expensive months are March and April, where the average cost of round-trip tickets is $834 and $698 respectively.

Good to know

Low season

January

High season

August

Cheapest flight

$728
Best time to beat the crowds but there is an average 21% increase in price.
Most popular time to fly and prices are also 15% lower on average.
Flight from Champaign to Seattle

When to book flights from Champaign to Seattle

Are your dates flexible? Find out the best times to travel from Champaign to Seattle based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Champaign to Seattle

  • What is the cheapest flight from Champaign to Seattle?

    In the last 3 days, the lowest price for a flight from Champaign to Seattle was $728 for a round-trip ticket.

  • Do I need a passport to fly between Champaign and Seattle?

    A passport is not required to fly from Champaign to Seattle.

  • Which airports will I be using when flying from Champaign to Seattle?

    When flying out of Champaign you will be using Champaign University-Willard. You will be landing at Seattle, also known as Seattle/Tacoma Intl.

  • Which aircraft models fly most regularly from Champaign to Seattle?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Champaign to Seattle?

    oneworld is the only airline alliance operating flights between Champaign and Seattle.

  • How does KAYAK find such low prices on flights from Champaign to Seattle?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Champaign to Seattle.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Champaign to Seattle?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle from Champaign is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Champaign to Seattle?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Seattle with an airline and back to Champaign with another airline. Booking your flights between Champaign and SEA can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Champaign to Seattle?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Seattle from Champaign up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top airline flying from Champaign to Seattle

 
See real verified KAYAK customer reviews for airlines flying from Champaign to Seattle. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Champaign to Seattle? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.2
American AirlinesOverall score based on 10000 reviews
8.0Crew
7.0Entertainment
7.6Boarding
7.2Comfort
6.5Food
Airline reviews

The meals were mediocre and the alcohol selection was poor. I enjoyed the selection of movies and other entertainment.

8.0 ExcellentAnonymous, Dec 2024ORD - DFW
Read more American Airlines reviews

The meals were mediocre and the alcohol selection was poor. I enjoyed the selection of movies and other entertainment.

I chatted with the captain before the flight, and similarly during the welcome announcement, he warned of a turbulent flight that may impact the in-flight service. However, once at altitude, he announced that the weather changed and he immediately turned off the seatbelt sign. But it appeared the cabin crew had already decided to take off this flight. They remained seated and then just chatted in the galley. The flight was fully catered, but only first class received service.

My flight attendant was attentive! The elderly person next to me was flatulent and the flight attendant could see that I was in distress and brought me some face masks

My boarding pass wouldn't pull up in the app very easily and had to really dig through my email. That caused a delay in TSA..

I had a TERRIBLE experience with the AA crew. I believe it was disability-related. It’s unlikely I will fly AA again.

Baby cried a lot. Nothing anyone could do about it. Just part of flying.

The flight crew was fantastic! Which the seats had a small TV.

The flight was delayed till next day ! They kept delaying every 30 minutes then after 3 hours they delayed it till next day. We kept waiting in line standing more than an hour to get the hotel and meal vouchers. There was no communication at all. Everything was bad

Smoothe flight. Pilot and crew did a great job. Uncomfortable seat in this jet, felt worn out

seats were way too small. Too short of a flight to offer amenities.

Book cheap flights from Champaign to Seattle

One-way flight deals

multi-stopMultiple Airlines
1757 miCMI-SEA

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

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