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Cheap flights from Chicago to Seattle

35 nonstop flights a week, 5 of them today. Operated by 5 airlines, about 4h 47m in the air, 1,733 mi (2,789 km). Tickets from $115.

Flights from Chicago to Seattle

Pick a departure date to see flights and seller prices

We search agencies and airlines for your day: nonstop and connecting flights, baggage, departure and arrival times.

Prices by day: Chicago to Seattle

Lowest one-way price in dollars from recent searches, cheap days in green. Press a day to see flights and exact prices.

Filters

Best fares from Chicago to Seattle

Lowest one-way prices found by recent searches for the next 120 days; press a card to search that date

Cheapest one-way $115 13 December 2026, nonstop Cheapest nonstop $115 13 December 2026, American Airlines Cheapest in the next 7 days $223 15 November, Sun Cheapest weekend departure $212 Sat, 21 November 2026
Cheapest day of the week Sunday $181 on average over the next 120 days
Cheapest month December 2026 tickets from $115

Chicago to Seattle at a glance

flight time, from 4h 30m to 5h 6m
4h 47m
straight-line distance
1,733 mi (2,789 km)
flights a week
35
flights today
5
first and last departure
06:00 - 09:30
lowest price, nonstop, 13 December
$115
average across months
$156
airlines
5

Chicago to Seattle ticket prices by month

Lowest one-way fare found by recent searches

Cheapest month: December 2026, tickets from $115. Prices come from searches over the last few days; check the search for your exact date.

The most expensive month is November 2026: from $198. The average across months is $156.

Chicago to Seattle flight schedule

35 flights a week, 5 today, 33 seasonal or one-off. Departure and arrival times are local.

FlightDepartsArrivesDurationDaysAircraft
AS 587
Alaska Airlines
06:00 , terminal 2
08:41 Seattle-Tacoma International
4h 41m
Mon, Fri, Sat, Sun
Boeing 737
DL 2041
Delta
06:40 , terminal 5
09:30 Seattle-Tacoma International
4h 50m
Daily
Airbus A220-300
AA 2112
American Airlines
06:49 , terminal 3
09:39 Seattle-Tacoma International
4h 50m
Daily
Airbus A321
AS 587
Alaska Airlines
07:00 , terminal 2
09:50 Seattle-Tacoma International
4h 50m
Daily
Boeing 737
AS 583
Alaska Airlines
09:00 , terminal 2
11:57 Seattle-Tacoma International
4h 57m
Mon, Fri, Sat, Sun
Boeing 737-800
UA 2099
United Airlines
09:25 , terminal 1
12:19 Seattle-Tacoma International
4h 54m
Daily
Boeing 737-900
AS 583
Alaska Airlines
09:30 , terminal 2
12:14 Seattle-Tacoma International
4h 44m
Daily
Boeing 737-800

Seasonal and one-off flights

Not operating in the next two weeks. The first of them is on 24 November.

FlightDepartsArrivesDurationDaysAircraft
WN 296
Southwest Airlines
09:55 Chicago Midway International
12:35 Seattle-Tacoma International
4h 40m
Seasonal
Boeing 737
AA 2112
American Airlines
07:07 , terminal 3
09:59 Seattle-Tacoma International
4h 52m
Seasonal
Boeing 737-800
WN 204
Southwest Airlines
10:00 Chicago Midway International
12:45 Seattle-Tacoma International
4h 45m
Seasonal
Boeing 737
UA 2099
United Airlines
08:55 , terminal 1
11:44 Seattle-Tacoma International
4h 49m
Seasonal
Boeing 737
AA 2112
American Airlines
06:45 , terminal 3
09:43 Seattle-Tacoma International
4h 58m
Seasonal
Airbus A321
AA 2112
American Airlines
06:54 , terminal 3
09:52 Seattle-Tacoma International
4h 58m
Seasonal
Airbus A321
AS 583
Alaska Airlines
09:01 , terminal 2
12:00 Seattle-Tacoma International
4h 59m
Seasonal
Boeing 737-900
UA 2099
United Airlines
09:29 , terminal 1
12:26 Seattle-Tacoma International
4h 57m
Seasonal
Boeing 737-800
AA 2398
American Airlines
10:05 , terminal 3
13:11 Seattle-Tacoma International
5h 6m
Seasonal
Airbus A321
DL 2041
Delta
06:00 , terminal 5
08:54 Seattle-Tacoma International
4h 54m
Seasonal
Airbus A220-300
DL 2041
Delta
07:00 , terminal 5
09:45 Seattle-Tacoma International
4h 45m
Seasonal
Boeing 737-800
AS 583
Alaska Airlines
08:00 , terminal 2
10:47 Seattle-Tacoma International
4h 47m
Seasonal
Boeing 737-900
UA 2099
United Airlines
09:00 , terminal 1
11:58 Seattle-Tacoma International
4h 58m
Seasonal
Airbus A320
AA 2202
American Airlines
06:33 , terminal 3
09:27 Seattle-Tacoma International
4h 54m
Seasonal
Boeing 737-800
AS 343
Alaska Airlines
06:00 , terminal 2
08:39 Seattle-Tacoma International
4h 39m
Seasonal
Boeing 737-900
AA 1930
American Airlines
06:45 , terminal 3
09:38 Seattle-Tacoma International
4h 53m
Seasonal
Boeing 737-800
AS 587
Alaska Airlines
08:00 , terminal 2
10:41 Seattle-Tacoma International
4h 41m
Seasonal
Boeing 737-900
UA 2099
United Airlines
08:50 , terminal 1
11:40 Seattle-Tacoma International
4h 50m
Seasonal
Boeing 737
WN 3496
Southwest Airlines
09:55 Chicago Midway International
12:35 Seattle-Tacoma International
4h 40m
Seasonal
Boeing 737
AA 2398
American Airlines
06:45 , terminal 3
09:38 Seattle-Tacoma International
4h 53m
Seasonal
Boeing 737-800
AA 2775
American Airlines
07:30 , terminal 3
10:14 Seattle-Tacoma International
4h 44m
Seasonal
Airbus A321
AA 2741
American Airlines
09:47 , terminal 3
12:29 Seattle-Tacoma International
4h 42m
Seasonal
Boeing 737-800
WN 1188
Southwest Airlines
10:00 Chicago Midway International
12:30 Seattle-Tacoma International
4h 30m
Seasonal
Boeing 737
DL 2041
Delta
07:20 , terminal 5
10:05 Seattle-Tacoma International
4h 45m
Seasonal
Airbus A220-300
AA 2775
American Airlines
06:55 , terminal 3
09:27 Seattle-Tacoma International
4h 32m
Seasonal
Boeing 737-800
AS 587
Alaska Airlines
07:40 , terminal 2
10:21 Seattle-Tacoma International
4h 41m
Seasonal
Boeing 737-900
AS 479
Alaska Airlines
10:00 , terminal 2
12:41 Seattle-Tacoma International
4h 41m
Seasonal
Boeing 737-900
WN 4903
Southwest Airlines
09:55 Chicago Midway International
12:30 Seattle-Tacoma International
4h 35m
Seasonal
WN 4903
Southwest Airlines
10:00 Chicago Midway International
12:35 Seattle-Tacoma International
4h 35m
Seasonal
WN 4903
Southwest Airlines
10:05 Chicago Midway International
12:40 Seattle-Tacoma International
4h 35m
Seasonal
AA 2775
American Airlines
06:40 , terminal 3
09:27 Seattle-Tacoma International
4h 47m
Seasonal
Boeing 737-800
AA 2775
American Airlines
06:45 , terminal 3
09:29 Seattle-Tacoma International
4h 44m
Seasonal
Boeing 737-800
AA 2741
American Airlines
09:45 , terminal 3
12:34 Seattle-Tacoma International
4h 49m
Seasonal
Airbus A321

Days of the week are taken from the schedule for the next 14 days; schedules change by season. Seattle is 2 hours behind Chicago. The search shows seat availability and the price for your date.

Airlines flying Chicago to Seattle

Flights a week by schedule and the cheapest nonstop fare of each airline found by recent searches

Alaska Airlines14 a week American Airlines7 a week Delta7 a week United Airlines7 a week Southwest Airlinesfrom 24 November

Airports

Where flights from Chicago to Seattle depart and land

Departure from Chicago

Chicago Midway International MDW

9 mi (14 km) from the city centre

About the airport

Arrival in Seattle

Seattle-Tacoma International SEA

35 flights a week, 11 mi (18 km) from the city centre

About the airport

When to visit Seattle

Weather by month

Best time to visit: May, June, July, August and September, +17° to +25° by day. In November it is +10° by day and +5° at night, with 17 rainy days.

Jan
+8° +2° 16 days
Feb
+8° +2° 14 days
Mar
+11° +4° 15 days
Apr
+13° +6° 14 days
May
+17° +9° 11 days
Jun
+21° +12° 7 days
Jul
+25° +15° 1 days
Aug
+25° +15° 6 days
Sep
+21° +13° 7 days
Oct
+15° +9° 14 days
Nov
+10° +5° 17 days
Dec
+8° +4° 20 days

Daytime and night temperatures in °C, rainy days. Months with the most comfortable weather are in green. Long-term averages.

Frequently asked questions

How long is the flight from Chicago to Seattle?
A nonstop flight takes 4 hours 47 minutes on average, from 4h 30m to 5h 6m depending on the flight.
How far is Seattle from Chicago?
1,733 mi (2,789 km) in a straight line between the cities.
Which airlines fly nonstop from Chicago to Seattle?
Alaska Airlines (14 a week), American Airlines (7 a week), Delta (7 a week), United Airlines (7 a week) and Southwest Airlines.
How many flights a day are there from Chicago to Seattle?
5 flights today and 35 a week, about 5 a day on average.
When are the first and last flights from Chicago to Seattle?
The first departure is at 06:00 (AS587), the last at 09:30 (AS583). Local time.
What is the cheapest month to fly from Chicago to Seattle?
December 2026: tickets from $115. The most expensive is November 2026, from $198.
What is the cheapest upcoming date to fly from Chicago to Seattle?
13 December 2026 (Sunday): from $115 one way, nonstop, by recent searches. The search shows the price for your dates.
Which airline is the cheapest from Chicago to Seattle?
American Airlines: nonstop tickets from $115 on 13 December by recent searches. Prices change daily, so compare the sellers in the search.
What is the time difference between Chicago and Seattle?
Seattle is 2 hours behind Chicago. Schedule times on this page are local to each airport.
Which Chicago airport do flights to Seattle leave from?
Chicago Midway International.