Cheap flights from Chicago to Seattle

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Flight information for Chicago to Seattle
(CHI to 03A)

Find info about flight duration, direct flights, and airports for your flight from Chicago to Seattle
Best Price Found $50 The best flight deal from Chicago to Seattle found on momondo in the last 72 hours is $50
Fastest flight time 4h 30m The fastest flight from Chicago to Seattle takes 4h 30m.
Direct flights Every day Direct flights go from Chicago to Seattle every day.
Airports in Seattle 3 airports There 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 to Seattle?
February
The cheapest time of year to fly to Seattle from Chicago is February. Most expensive is December
What is the cheapest day to fly to Seattle?
Tuesday
The cheapest day of the week is typically Tuesday. The most expensive is typically Sunday
When is the cheapest time to fly to Seattle?
in the afternoon
Chicago to Seattle flights are approximately 16% more expensive in the morning than in the afternoon
What is the cheapest airline that flies to Seattle?
Frontier
Frontier, Spirit Airlines, and Sun Country Air are the most popular carriers operating from Chicago to Seattle
What is the cheapest 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
When is the cheapest time to book a flight to Seattle?
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
Quickest
Cheapest
Spirit Airlines
Jun 4
ORD
Chicago O'Hare Intl
17h 59m
1 stop
SEA
Seattle/Tacoma Intl
Jun 7
SEA
Seattle/Tacoma Intl
13h 20m
1 stop
ORD
Chicago O'Hare Intl
Spirit Airlines
Apr 8
ORD
Chicago O'Hare Intl
10h 48m
1 stop
SEA
Seattle/Tacoma Intl
Apr 14
SEA
Seattle/Tacoma Intl
7h 47m
1 stop
ORD
Chicago O'Hare Intl
Spirit Airlines
Apr 12
ORD
Chicago O'Hare Intl
17h 59m
1 stop
SEA
Seattle/Tacoma Intl
Apr 16
SEA
Seattle/Tacoma Intl
7h 47m
1 stop
ORD
Chicago 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
Quickest
Cheapest
Spirit Airlines
Apr 7
ORD
Chicago O'Hare Intl
9h 31m
1 stop
SEA
Seattle/Tacoma Intl
Multiple Airlines
May 15
ORD
Chicago O'Hare Intl
22h 50m
1 stop
SEA
Seattle/Tacoma Intl
Spirit Airlines
Apr 27
ORD
Chicago O'Hare Intl
10h 48m
1 stop
SEA
Seattle/Tacoma Intl

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
Indianapolis to Portland Flights
Fastest flight time
6h 38m
Cheapest price
$48
Chicago to Portland Flights
Fastest flight time
5h 32m
Cheapest price
$49
Chicago to Bellingham Flights
Fastest flight time
6h 12m
Cheapest price
$266

Flights from Chicago to: