Cheap flights from Chicago to Seattle

Round-trip
Economy
Chicago (CHI)
Seattle (SEA)
Wed 6/16
Wed 6/23
Any month
Compare vs. momondo |

Flight information for Chicago to Seattle
(CHI to SEA)

Find info about flight duration, direct flights, and airports for your flight from Chicago to Seattle
Best Price Found$159The best flight deal from Chicago to Seattle found on momondo in the last 72 hours is $159
Fastest flight time4h 30mThe fastest flight from Chicago to Seattle takes 4h 30m
Direct flightsTu, We, Th and FrDirect flights go from Chicago to Seattle on Tuesday, Wednesday, Thursday and Friday. The only airline offering direct flights is Alaska Airlines.
Airports in Seattle3 airportsThere are 3 airports near Seattle: Seattle King County/Boeing (BFI), Seattle Lake Union Spb (LKE), Seattle/Tacoma Intl (SEA)

How to get the cheapest flight ticket from Chicago to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

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

August
The cheapest time of year to fly to Seattle from Chicago is August. Most expensive is December

What is the cheapest day to depart Chicago for Seattle?

Tuesday
The cheapest day of the week is typically Tuesday. The most expensive is typically Sunday

When is the cheapest time to fly from Chicago to Seattle?

in the afternoon
Chicago to Seattle flights are approximately 9% more expensive in the morning than in the afternoon

What is the cheapest airline that flies to Seattle from Chicago?

Frontier
Frontier, Sun Country Air, and Spirit Airlines are the most popular carriers operating from Chicago to Seattle

What is the cheapest Chicago to Seattle flight route?

Chicago O'Hare Intl - Seattle/Tacoma Intl
Fly from Chicago O'Hare Intl to Seattle/Tacoma Intl for the best Chicago - Seattle flight prices

How far in advance should you book Chicago to Seattle flights?

60 days before
The cheapest time to buy a flight from Chicago to Seattle is approximately 60 days to departure
60
Days before departure
0

Easily compare round-trip flights from Chicago to Seattle

Below you can see the best fares for your round-trip flight route over the next three months. All fares were found on momondo this week. Browse the quickest and cheapest flights from Chicago to Seattle by changing tabs
United Airlines
Jun 7
ORD3:40 pmChicago O'Hare Intl
4h 29m
SEA8:09 pmSeattle/Tacoma Intl
Jun 11
SEA7:55 pmSeattle/Tacoma Intl
4h 03m
ORD11:58 pmChicago O'Hare Intl
Multiple Airlines
Jun 4
ORD3:25 pmChicago O'Hare Intl
4h 34m
SEA7:59 pmSeattle/Tacoma Intl
Jun 20
SEA2:00 pmSeattle/Tacoma Intl
3h 59m
ORD5:59 pmChicago O'Hare Intl
Multiple Airlines
Jun 18
ORD1:50 pmChicago O'Hare Intl
4h 35m
SEA6:25 pmSeattle/Tacoma Intl
Jun 21
SEA1:00 amSeattle/Tacoma Intl
4h 04m
ORD5:04 amChicago O'Hare Intl

Find the cheapest one-way flights from Chicago to Seattle

If you're looking for one-way flights from Chicago to Seattle, view some of our deals below provided by Spirit Airlines
Delta
May 30
ORD2:05 amChicago O'Hare Intl
4h 20m
SEA6:25 amSeattle/Tacoma Intl
Delta
Jun 18
ORD2:40 pmChicago O'Hare Intl
4h 37m
SEA7:17 pmSeattle/Tacoma Intl
American Airlines
Jun 5
ORD11:30 amChicago O'Hare Intl
4h 41m
SEA4:11 pmSeattle/Tacoma Intl

Best airlines flying from Chicago to Seattle

Compare and see reviews for airlines that fly from Chicago to Seattle with momondo
AirlineRatingFree CancellationPrice
Alaska Airlines
PriceFrom $86
Free Cancellation
Rating
8.2
8.7

Boarding

8.5

Comfort

8.8

Crew

8.0

Entertainment

7.4

Food

Reviews

Pros: Accommodated to an earlier flight without questions asked.

Cons: Always been a delight!

1 / 10
Delta
PriceFrom $86
Free Cancellation
Rating
8.1
8.2

Boarding

8.4

Comfort

8.2

Crew

7.8

Entertainment

8.0

Food

Reviews

Cons: Wouldn't let us on the flight when there was plenty of time to get there. Manager was arrogant and slow - didn't care. Poor policies at that airport.

1 / 10
United Airlines
PriceFrom $90
Free Cancellation
Rating
6.8
7.2

Boarding

6.6

Comfort

7.5

Crew

6.6

Entertainment

6.0

Food

Reviews

Pros: everything

Cons: nono

1 / 10
Frontier
PriceFrom $92
Free Cancellation
Rating
7.5
8.0

Boarding

7.1

Comfort

8.1

Crew

6.6

Entertainment

6.9

Food

Reviews

Cons: Everything is ok

1 / 10
Spirit Airlines
PriceFrom $94
Free Cancellation
Rating
7.0
7.4

Boarding

6.7

Comfort

7.7

Crew

6.2

Entertainment

6.4

Food

Reviews

Cons: Too many of the passengers were out of control

1 / 10
American Airlines
PriceFrom $105
Free Cancellation
Rating
7.2
7.4

Boarding

7.1

Comfort

7.9

Crew

7.0

Entertainment

6.8

Food

Reviews

Pros: Yes made sure mask was in place

Cons: No

1 / 10

Which airlines flying from Chicago to Seattle/Tacoma Intl have COVID-19 safety policies in place?

Many airlines have put safety measures in place to reduce the spread of COVID-19. One is Alaska Airlines. Usage of HEPA filters, scheduled sanitation, enhanced cleaning of aircrafts, pre-flight testing, and mask policies are some of the implemented practices made by airlines to help keep you safe as you depart from Chicago to Seattle/Tacoma Intl. Keep in mind that policies will vary by airline.

Are airlines flying from Chicago to Seattle/Tacoma Intl offering flexible cancellation due to COVID-19?

To ease the stress of booking flights, some of our airline partners flying from Chicago to Seattle/Tacoma Intl are responding to the global pandemic. The following airlines may have a flexible cancellation policy to help accommodate travelers: Delta, Alaska Airlines, and United Airlines.


Alternative routes for Chicago to Seattle

Compare alternative flights to and from nearby airports and cities to discover the best prices and most convenient flight times
Bloomington, Illinois to Seattle Flights
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Peoria, Illinois to Seattle Flights
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Moline to Seattle Flights
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Chicago to Bellingham Flights
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