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Direct flights from Logan International (BOS) to Seattle-Tacoma International (SEA)

49 nonstop flights a week from Logan International (BOS) to Seattle-Tacoma International (SEA) with 5 airlines, 6h 17m to 16h 12m in the air, 2,488 mi (4,004 km). Departures from 07:00 to 19:25.

Flights from Boston to Seattle

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Logan International (BOS) to Seattle-Tacoma International (SEA) at a glance

flights a week
49
airlines
5
flight time
6h 17m - 16h 12m
distance
2,488 mi (4,004 km)
first and last departure
07:00 - 19:25
departure terminals
A, B, C

Logan International (BOS) to Seattle-Tacoma International (SEA) flight schedule

49 flights a week. Departure and arrival times are local.

FlightDepartsArrivesDurationDaysAircraft
AS 459
Alaska Airlines
07:00 Logan International, terminal B
10:28 Seattle-Tacoma International
6h 28m
Mon, Fri, Sat, Sun
Boeing 737
AS 459
Alaska Airlines
07:13 Logan International, terminal B
10:39 Seattle-Tacoma International
6h 26m
Daily
Boeing 737
DL 384
Delta
07:50 Logan International, terminal A
11:17 Seattle-Tacoma International
6h 27m
Daily
Airbus A320
AS 215
Alaska Airlines
09:00 Logan International, terminal B
12:26 Seattle-Tacoma International
6h 26m
Mon, Fri, Sat, Sun
Boeing 737-900
AS 215
Alaska Airlines
09:03 Logan International, terminal B
12:27 Seattle-Tacoma International
6h 24m
Daily
Boeing 737-900
DL 332
Delta
10:40 Logan International, terminal A
14:03 Seattle-Tacoma International
6h 23m
Daily
Airbus A320
WN 296
Southwest Airlines
10:40 Logan International, terminal B
16:05 Seattle-Tacoma International
8h 25m
Sat
DL 2889
Delta
15:45 Logan International, terminal A
19:06 Seattle-Tacoma International
6h 21m
Mon, Tue, Wed, Thu, Fri, Sun
Airbus A320
AS 257
Alaska Airlines
16:33 Logan International, terminal B
19:59 Seattle-Tacoma International
6h 26m
Sat
Boeing 737-900
AS 257
Alaska Airlines
17:44 Logan International, terminal B
21:08 Seattle-Tacoma International
6h 24m
Tue, Wed
Boeing 737
AS 257
Alaska Airlines
17:50 Logan International, terminal B
21:15 Seattle-Tacoma International
6h 25m
Sat
Boeing 737
AS 257
Alaska Airlines
18:04 Logan International, terminal B
21:29 Seattle-Tacoma International
6h 25m
Mon, Fri, Sun
Boeing 737-900
AS 257
Alaska Airlines
18:20 Logan International, terminal B
21:44 Seattle-Tacoma International
6h 24m
Mon, Thu, Fri, Sun
Boeing 737-900
DL 2889
Delta
18:35 Logan International, terminal A
22:03 Seattle-Tacoma International
6h 28m
Mon, Sun
Airbus A320
DL 2889
Delta
18:37 Logan International, terminal A
22:05 Seattle-Tacoma International
6h 28m
Sat
Airbus A320
DL 797
Delta
19:25 Logan International, terminal A
22:55 Seattle-Tacoma International
6h 30m
Mon, Tue, Wed, Thu, Fri, Sun
Airbus A320

Seasonal and one-off flights

Not operating in the next two weeks. The first of them is on 1 December.

FlightDepartsArrivesDurationDaysAircraft
UA 360
United Airlines
08:27 Logan International, terminal B
21:21 Seattle-Tacoma International
15h 54m
Seasonal
Boeing 757-200
AS 257
Alaska Airlines
18:22 Logan International, terminal B
22:00 Seattle-Tacoma International
6h 38m
Seasonal
Boeing 737
DL 797
Delta
19:26 Logan International, terminal A
22:55 Seattle-Tacoma International
6h 29m
Seasonal
Airbus A320
DL 2889
Delta
18:39 Logan International, terminal A
22:04 Seattle-Tacoma International
6h 25m
Seasonal
Airbus A320
UA 360
United Airlines
08:20 Logan International, terminal B
21:29 Seattle-Tacoma International
16h 9m
Seasonal
Boeing 757-200
AS 257
Alaska Airlines
18:09 Logan International, terminal B
21:50 Seattle-Tacoma International
6h 41m
Seasonal
Boeing 737-900
DL 384
Delta
07:30 Logan International, terminal A
11:05 Seattle-Tacoma International
6h 35m
Seasonal
Airbus A320
DL 953
Delta
10:50 Logan International, terminal A
14:20 Seattle-Tacoma International
6h 30m
Seasonal
Airbus A320
DL 797
Delta
18:15 Logan International, terminal A
21:42 Seattle-Tacoma International
6h 27m
Seasonal
Airbus A320
DL 384
Delta
07:05 Logan International, terminal A
10:43 Seattle-Tacoma International
6h 38m
Seasonal
Airbus A320
DL 797
Delta
18:30 Logan International, terminal A
22:04 Seattle-Tacoma International
6h 34m
Seasonal
Airbus A320
UA 360
United Airlines
08:30 Logan International, terminal B
21:17 Seattle-Tacoma International
15h 47m
Seasonal
Boeing 757-200
AS 257
Alaska Airlines
18:28 Logan International, terminal B
21:56 Seattle-Tacoma International
6h 28m
Seasonal
Boeing 737-900
AS 459
Alaska Airlines
07:08 Logan International, terminal B
10:30 Seattle-Tacoma International
6h 22m
Seasonal
Boeing 737-900
UA 360
United Airlines
08:15 Logan International, terminal B
21:12 Seattle-Tacoma International
15h 57m
Seasonal
Boeing 757-200
AS 1552
Alaska Airlines
09:00 Logan International, terminal B
12:22 Seattle-Tacoma International
6h 22m
Seasonal
Boeing 737-900
AS 306
Alaska Airlines
18:32 Logan International, terminal B
21:58 Seattle-Tacoma International
6h 26m
Seasonal
Boeing 737-900
UA 360
United Airlines
08:00 Logan International, terminal B
21:12 Seattle-Tacoma International
16h 12m
Seasonal
Boeing 757-200
DL 332
Delta
10:50 Logan International, terminal A
14:20 Seattle-Tacoma International
6h 30m
Seasonal
Airbus A320
DL 332
Delta
11:00 Logan International, terminal A
14:31 Seattle-Tacoma International
6h 31m
Seasonal
Airbus A320

Days of the week are taken from the schedule for the next 14 days; schedules change by season. Seattle is 3 hours behind Boston.

Airlines flying Logan International (BOS) to Seattle-Tacoma International (SEA)

Nonstop flights a week by the current schedule

Delta27 a week Alaska Airlines21 a week Southwest Airlines1 a week jetBlue United Airlines

Frequently asked questions

How many nonstop flights are there from Logan International (BOS) to Seattle-Tacoma International (SEA)?
49 nonstop flights a week by the current schedule, 17 flight numbers.
How long is the flight from Logan International (BOS) to Seattle-Tacoma International (SEA)?
From 6 hours 17 minutes to 16 hours 12 minutes nonstop, depending on the flight.
Which airlines fly nonstop from Logan International (BOS) to Seattle-Tacoma International (SEA)?
Delta (27 a week), Alaska Airlines (21 a week), Southwest Airlines (1 a week), jetBlue and United Airlines.
Which terminals are used between Logan International (BOS) and Seattle-Tacoma International (SEA)?
Flights depart from Logan International, terminals A, B, C and arrive at Seattle-Tacoma International.
How far is Seattle-Tacoma International (SEA) from Logan International (BOS)?
2,488 mi (4,004 km) in a straight line.
What are the earliest and latest flights from Logan International (BOS) to Seattle-Tacoma International (SEA)?
The first departure is at 07:00 (Alaska Airlines), the last at 19:25 (Delta), local time.