You know where to go
Select an airport in the search form
You don't know where to go
See where you can go on your budget
Cheap flights from Chicago to Seattle
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
Delta
18 Jan
11:10 am
ORD
Chicago O'Hare Intl airport
4h 41m
SEA
1:51 pm
Seattle/Tacoma Intl airport
25 Jan
11:00 pm
SEA
Seattle/Tacoma Intl airport
4h 04m
ORD
5:04 am
+1
Chicago O'Hare Intl airport
157 USD
Spirit Airlines
15 Jan
3:35 am
ORD
Chicago O'Hare Intl airport
16h 24m
1 Stop
SEA
5:59 pm
Seattle/Tacoma Intl airport
21 Jan
4:25 pm
SEA
Seattle/Tacoma Intl airport
4h 05m
ORD
10:30 pm
Chicago O'Hare Intl airport
163 USD
American Airlines
10 Jan
2:25 pm
ORD
Chicago O'Hare Intl airport
4h 46m
SEA
5:11 pm
Seattle/Tacoma Intl airport
15 Jan
5:29 am
SEA
Seattle/Tacoma Intl airport
4h 12m
ORD
11:41 am
Chicago O'Hare Intl airport
165 USD
Delta
18 Jan
11:10 am
ORD
Chicago O'Hare Intl airport
4h 41m
SEA
1:51 pm
Seattle/Tacoma Intl airport
25 Jan
11:00 pm
SEA
Seattle/Tacoma Intl airport
4h 04m
ORD
5:04 am
+1
Chicago O'Hare Intl airport
157 USD
Major Airline
18 Dec
5:53 am
ORD
Chicago O'Hare Intl airport
4h 45m
SEA
8:38 am
Seattle/Tacoma Intl airport
30 Dec
10:00 pm
SEA
Seattle/Tacoma Intl airport
4h 06m
ORD
4:06 am
+1
Chicago O'Hare Intl airport
251 USD
Delta
12 Jan
1:45 am
ORD
Chicago O'Hare Intl airport
4h 56m
SEA
4:41 am
Seattle/Tacoma Intl airport
13 Jan
9:51 am
SEA
Seattle/Tacoma Intl airport
4h 01m
ORD
3:52 pm
Chicago O'Hare Intl airport
173 USD
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 July
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 18% more expensive in the morning than in the afternoon
What is the cheapest airline that flies to Seattle?
Sun Country Air
Sun Country Air, Frontier, and Spirit Airlines 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
Flight information for Chicago to Seattle (03A - CHI)
Find info about flight duration, direct flights, and airports for your flight from Chicago to Seattle
| Fastest flight time | 4h 35m | The fastest flight from Chicago to Seattle takes 4h 35m. | |
| 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) |
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
Flights from Chicago to:
Flights to other cities in United States
Lost the lust for Seattle? Check out some flights to other cities in United States
Round-trip flights to other destinations
Lost the lust for Seattle? Check out some flights to other destinations
*Flight prices to Seattle are based on prices for economy tickets found by momondo users during searches within the last 72 hours. These prices may no longer be available.