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Direct flights from Boston to Seattle

Airlines Schedules

BOS - SEA route map All flights from BOS to SEA non-stop. There are direct flights from Boston Logan International Airport (BOS), Massachusetts, USA to Seattle Tacoma International (SEA), Washington, USA with Alaska Airlines, Delta Air Lines and JetBlue Airways. 66 weekly departures are currently scheduled on this route. Departure times range from 07:00 to 19:59 depending on the schedule period. The flight distance is 2502 miles (4026 km). Flight time ranges from 6 hours and 11 minutes to 6 hours and 39 minutes.

BOS
Boston Logan Airport
USABoston , USA
SEA
Seattle Tacoma
USASeattle , USA
BOS
Boston Logan Airport
USABoston , USA
Seattle Tacoma
USASeattle , USA
SEA
Flight time 6h 11min to 6h 39min
Updated Jun 29, 2026
CHANGE DIRECTION

Airlines with non-stop routes:

Alaska Airlines oneworld

Departure times vary between 07:00 and 19:59 • From Terminal B
S
M
T
W
T
F
S
Sun
Mon
Tue
Wed
Thu
Fri
Sat
28 flights/week
28 flights/week

Delta Air Lines SkyTeam

Departure times vary between 07:05 and 19:45 • From Terminal A
S
M
T
W
T
F
S
Sun
Mon
Tue
Wed
Thu
Fri
Sat
24 flights/week
24 flights/week

JetBlue Airways Low-cost carrier

Departure times vary between 07:00 and 19:30 • From Terminal C
S
M
T
W
T
F
S
Sun
Mon
Tue
Wed
Thu
Fri
Sat
14 flights/week
14 flights/week
Weekday-labels: HAS FLIGHTS UPCOMING NO FLIGHTS
View all flight dates
Flight schedule from Boston to Seattle with Alaska Airlines

This is a weekly direct flight schedule for Alaska Airlines. Use the arrows or click on the date to change week. Click on any flight departure time to show more information and check availability.

 
Flight
Mon
Jul 27
Tue
Jul 28
Wed
Jul 29
Thu
Jul 30
Fri
Jul 31
Sat
Aug 1
Sun
Aug 2
AS459
07:03
07:03
07:03
07:03
07:03
07:03
07:03
AS338
09:00
09:00
09:00
09:00
09:00
09:00
09:00
AS1506
15:26
----
----
15:26
15:26
15:26
15:26
AS304
17:56
17:56
17:56
17:56
17:56
17:56
17:56
AS1337
19:44
19:44
19:44
19:44
19:44
----
19:44

The timetable & schedule information was updated at 2026-06-29

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Flight schedule from Boston to Seattle with Delta Air Lines

This is a weekly direct flight schedule for Delta Air Lines. Use the arrows or click on the date to change week. Click on any flight departure time to show more information and check availability.

 
Flight
Mon
Jul 27
Tue
Jul 28
Wed
Jul 29
Thu
Jul 30
Fri
Jul 31
Sat
Aug 1
Sun
Aug 2
DL384
07:53
07:53
07:53
07:53
07:53
07:53
07:53
DL332
11:29
11:29
11:29
11:29
11:29
11:29
11:29
DL2889
15:40
15:40
15:40
15:40
15:40
----
15:40
DL324
19:29
19:29
19:29
19:29
19:29
18:50
19:29

The timetable & schedule information was updated at 2026-06-29

RETURN SCHEDULE
CHECK PRICES
Flight schedule from Boston to Seattle with JetBlue Airways

This is a weekly direct flight schedule for JetBlue Airways. Use the arrows or click on the date to change week. Click on any flight departure time to show more information and check availability.

 
Flight
Mon
Jul 27
Tue
Jul 28
Wed
Jul 29
Thu
Jul 30
Fri
Jul 31
Sat
Aug 1
Sun
Aug 2
B6397
07:10
07:10
07:10
07:10
07:10
09:02
07:10
B6197
19:29
19:29
19:29
19:29
19:29
19:00
19:29

The timetable & schedule information was updated at 2026-06-29

RETURN SCHEDULE
CHECK PRICES
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Boston to Seattle scheduled departures

Select a date to see every published non-stop departure between BOS and SEA.

Wednesday
Wed
Jul 29
10 flights(10)
Thursday
Thu
Jul 30
11 flights(11)
Friday
Fri
Jul 31
11 flights(11)
Saturday
Sat
Aug 01
9 flights(9)
Sunday
Sun
Aug 02
11 flights(11)
Monday
Mon
Aug 03
11 flights(11)
Tuesday
Tue
Aug 04
10 flights(10)
Time
Airline
Flight
07:03
Alaska Airlines Alaska Airlines
AS459
07:10
JetBlue Airways JetBlue Airways
B6397
07:53
Delta Air Lines Delta Air Lines
DL384
09:00
Alaska Airlines Alaska Airlines
AS338
11:29
Delta Air Lines Delta Air Lines
DL332
15:40
Delta Air Lines Delta Air Lines
DL2889
17:56
Alaska Airlines Alaska Airlines
AS304
19:29
JetBlue Airways JetBlue Airways
B6197
19:29
Delta Air Lines Delta Air Lines
DL324
19:44
Alaska Airlines Alaska Airlines
AS1337
07:03
Alaska Airlines Alaska Airlines
AS459
07:10
JetBlue Airways JetBlue Airways
B6397
07:53
Delta Air Lines Delta Air Lines
DL384
09:00
Alaska Airlines Alaska Airlines
AS338
11:29
Delta Air Lines Delta Air Lines
DL332
15:26
Alaska Airlines Alaska Airlines
AS1506
15:40
Delta Air Lines Delta Air Lines
DL2889
17:56
Alaska Airlines Alaska Airlines
AS304
19:29
JetBlue Airways JetBlue Airways
B6197
19:29
Delta Air Lines Delta Air Lines
DL324
19:44
Alaska Airlines Alaska Airlines
AS1337
07:03
Alaska Airlines Alaska Airlines
AS459
07:10
JetBlue Airways JetBlue Airways
B6397
07:53
Delta Air Lines Delta Air Lines
DL384
09:00
Alaska Airlines Alaska Airlines
AS338
11:29
Delta Air Lines Delta Air Lines
DL332
15:26
Alaska Airlines Alaska Airlines
AS1506
15:40
Delta Air Lines Delta Air Lines
DL2889
17:56
Alaska Airlines Alaska Airlines
AS304
19:29
JetBlue Airways JetBlue Airways
B6197
19:29
Delta Air Lines Delta Air Lines
DL324
19:44
Alaska Airlines Alaska Airlines
AS1337
07:03
Alaska Airlines Alaska Airlines
AS459
07:53
Delta Air Lines Delta Air Lines
DL384
09:00
Alaska Airlines Alaska Airlines
AS338
09:02
JetBlue Airways JetBlue Airways
B6397
11:29
Delta Air Lines Delta Air Lines
DL332
15:26
Alaska Airlines Alaska Airlines
AS1506
17:56
Alaska Airlines Alaska Airlines
AS304
18:50
Delta Air Lines Delta Air Lines
DL324
19:00
JetBlue Airways JetBlue Airways
B6197
07:03
Alaska Airlines Alaska Airlines
AS459
07:10
JetBlue Airways JetBlue Airways
B6397
07:53
Delta Air Lines Delta Air Lines
DL384
09:00
Alaska Airlines Alaska Airlines
AS338
11:29
Delta Air Lines Delta Air Lines
DL332
15:26
Alaska Airlines Alaska Airlines
AS1506
15:40
Delta Air Lines Delta Air Lines
DL2889
17:56
Alaska Airlines Alaska Airlines
AS304
19:29
JetBlue Airways JetBlue Airways
B6197
19:29
Delta Air Lines Delta Air Lines
DL324
19:44
Alaska Airlines Alaska Airlines
AS1337
07:03
Alaska Airlines Alaska Airlines
AS459
07:10
JetBlue Airways JetBlue Airways
B6397
07:45
Delta Air Lines Delta Air Lines
DL384
09:00
Alaska Airlines Alaska Airlines
AS338
11:20
Delta Air Lines Delta Air Lines
DL332
15:26
Alaska Airlines Alaska Airlines
AS1506
16:05
Delta Air Lines Delta Air Lines
DL2889
17:56
Alaska Airlines Alaska Airlines
AS304
19:29
JetBlue Airways JetBlue Airways
B6197
19:35
Delta Air Lines Delta Air Lines
DL324
19:44
Alaska Airlines Alaska Airlines
AS1337
07:03
Alaska Airlines Alaska Airlines
AS459
07:10
JetBlue Airways JetBlue Airways
B6397
07:45
Delta Air Lines Delta Air Lines
DL384
09:00
Alaska Airlines Alaska Airlines
AS338
11:29
Delta Air Lines Delta Air Lines
DL332
16:05
Delta Air Lines Delta Air Lines
DL2889
17:56
Alaska Airlines Alaska Airlines
AS304
19:29
JetBlue Airways JetBlue Airways
B6197
19:35
Delta Air Lines Delta Air Lines
DL324
19:44
Alaska Airlines Alaska Airlines
AS1337
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BOS-SEA flight route
Route map from Boston, BOS to Seattle, SEA. The distance is 2502 miles or 4026 km.
Boston - Seattle direct flight map
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BOS - SEA route facts

  • Distance
    2502 miles (4026 km)
  • Flight time
    6 hours and 11 minutes to 6 hours and 39 minutes
  • Airlines
    Alaska Airlines Alaska Airlines
    Delta Delta
    JetBlue JetBlue
  • Airline alliances
    oneworld SkyTeam Low-cost carrier
  • Cabins
    Economy Business First
  • Hub airports
    Alaska Airlines: SEA (Primary hub.)
    Delta Air Lines: BOS and SEA
  • Departure terminals
    Alaska Airlines: Terminal B
    Delta Air Lines: Terminal A
    JetBlue Airways: Terminal C
  • Aircraft
    Alaska Airlines: Boeing 737-900 (winglets) Passenger/BBJ3, Boeing 737MAX 9 Passenger, Boeing 737-800 (winglets) Passenger/BBJ2 and Boeing 737MAX 8 Passenger
    Delta Air Lines: Airbus A321neo
    JetBlue Airways: Airbus A321 and Airbus A320

Route FAQ

Alaska Airlines, Delta Air Lines and JetBlue Airways operate non-stop flights from BOS to SEA with 66 weekly departures.

Scheduled flight time from BOS to SEA ranges from 6 hours and 11 minutes to 6 hours and 39 minutes. The route covers 2502 miles (4026 km).

66 weekly departures are currently scheduled on this route, with published departure times ranging from 07:00 to 19:59 depending on the schedule period.

Departure terminals: Alaska Airlines: Terminal B, Delta Air Lines: Terminal A and JetBlue Airways: Terminal C.

Economy, Business and First are currently scheduled on non-stop flights for this route.
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