Cheap flights from Chicago, IL to Seattle, WA

Flights starting at $60. Choose between Alaska Airlines, United Airlines, or Spirit Airlines to find the best price.

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Travelers usually depart from O Hare International, Chicago Midway International, or Chicago Rockford International when they travel from Chicago to Seattle. Book your trip to arrive at Seattle–Tacoma International, Kenmore Air Harbor Seaplane Base, Seattle, WA - University of Washington, or Seattle WA - South Lane St. Bus Stop. The distance between Chicago and Seattle is 2764 km. The most popular airlines for this route are Alaska Airlines, United Airlines, Spirit Airlines, Frontier Airlines, and Harbour Air (Priv). Chicago and Seattle have 109 direct flights per week.

Weekly direct flights

Discover the top airlines offering direct flights from Chicago to Seattle in the next month. You’ll find the number of daily direct flights per airline in the table.

Weekly direct flights for Sun 10.03 - Sat 16.03

AirlineSun 10.03Mon 11.03Tue 12.03Wed 13.03Thu 14.03Fri 15.03Sat 16.03
3332354
3333332

Weekly direct flights for Sun 17.03 - Sat 23.03

AirlineSun 17.03Mon 18.03Tue 19.03Wed 20.03Thu 21.03Fri 22.03Sat 23.03
232121---
3332311

Weekly direct flights for Sun 24.03 - Sat 30.03

AirlineSun 24.03Mon 25.03Tue 26.03Wed 27.03Thu 28.03Fri 29.03Sat 30.03
5655554
2133333

Weekly direct flights for Sun 31.03 - Sat 06.04

AirlineSun 31.03Mon 01.04Tue 02.04Wed 03.04Thu 04.04Fri 05.04Sat 06.04
5555555
3444444

Check-in for a flight from Chicago to Seattle

NameCarrier codeIATA CodePassport needed during bookingOnline check-in available
Alaska AirlinesASAASNoOpens 24 days before flight
Closes 1 hours before flight
United AirlinesUALUAYesNo
Spirit AirlinesNKSNKNoOpens 24 days before flight
Closes 1 hours before flight
Frontier AirlinesFFTF9NoOpens 24 days before flight
Closes 1 hours before flight
Harbour Air (Priv)HESYBNoNo

Weather in Seattle

Average Weather

MonthAverage monthly max temperatureAverage monthly min temperature
January7°C2°C
February8°C1°C
March10°C3°C
April13°C4°C
May18°C8°C
June21°C10°C
July25°C13°C
August26°C14°C
September22°C11°C
October15°C7°C
November10°C4°C
December6°C1°C
Hottest Month
26°C
August
Coldest month
1°C
February
Sunny days
250
days per year
Snow days
5
days per year

14 day forecast

Sunday
10 Mar
99%
8°C6°C
17 Mar
18°C7°C
Monday
11 Mar
92%
7°C4°C
18 Mar
16°C7°C
Tuesday
12 Mar
85%
9°C5°C
19 Mar
89%
6°C4°C
Wednesday
13 Mar
89%
10°C4°C
20 Mar
89%
11°C3°C
Thursday
14 Mar
11°C1°C
21 Mar
11°C3°C
Friday
15 Mar
14°C3°C
22 Mar
83%
8°C1°C
Saturday
16 Mar
19°C5°C
23 Mar
77%
11°C3°C

Frequently asked questions

How long does it take to travel from Chicago to Seattle?
What is the flight distance between Chicago and Seattle?
What airlines offer nonstop (direct) flights between Chicago and Seattle?
What are the most popular routes to and from Chicago?
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Which airports are there in Chicago?
What airports are near Chicago?
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Is it possible to combine flights, buses, and trains in one itinerary when traveling between Chicago and Seattle?
What is Virtual Interlining and how do I use it?
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When's the best time to travel between Chicago and Seattle?
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How many airports are there near Chicago?
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What time do nonstop (direct) flights between Chicago and Seattle depart?
What time do nonstop (direct) flights between Chicago and Seattle arrive?
What time do flights between Chicago and Seattle depart?
What time do flights between Chicago and Seattle arrive?

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