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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. 64 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 41 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 41min
Updated Sep 28, 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
29 flights/week
29 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
27 flights/week
27 flights/week

JetBlue Airways Low-cost carrier

Departure times vary between 07:00 and 19:29 • From Terminal C
S
M
T
W
T
F
S
Sun
Mon
Tue
Wed
Thu
Fri
Sat
8 flights/week
8 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
Oct 26
Tue
Oct 27
Wed
Oct 28
Thu
Oct 29
Fri
Oct 30
Sat
Oct 31
Sun
Nov 1
AS459
07:03
07:03
07:03
07:03
07:03
07:03
07:13
AS215
09:03
09:03
09:03
09:03
09:03
09:03
09:03
AS288
16:58
16:58
16:58
16:58
16:58
16:58
----
AS257
----
----
----
----
----
----
18:20
AS306
18:40
18:40
18:40
18:40
18:40
18:37
----

The timetable & schedule information was updated at 2026-09-28

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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
Oct 26
Tue
Oct 27
Wed
Oct 28
Thu
Oct 29
Fri
Oct 30
Sat
Oct 31
Sun
Nov 1
DL384
07:55
07:55
07:55
07:55
07:55
07:55
07:55
DL332
10:50
10:50
10:50
10:50
10:50
11:15
10:50
DL2889
15:47
15:47
15:47
15:47
15:47
----
----
DL797
19:25
19:25
19:25
19:25
19:25
17:55
18:42

The timetable & schedule information was updated at 2026-09-28

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
Oct 26
Tue
Oct 27
Wed
Oct 28
Thu
Oct 29
Fri
Oct 30
Sat
Oct 31
Sun
Nov 1

The timetable & schedule information was updated at

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.

Monday
Mon
Oct 26
8 flights(8)
Tuesday
Tue
Oct 27
8 flights(8)
Wednesday
Wed
Oct 28
8 flights(8)
Thursday
Thu
Oct 29
8 flights(8)
Friday
Fri
Oct 30
8 flights(8)
Saturday
Sat
Oct 31
7 flights(7)
Sunday
Sun
Nov 01
6 flights(6)
Time
Airline
Flight
07:03
Alaska Airlines Alaska Airlines
AS459
07:55
Delta Air Lines Delta Air Lines
DL384
09:03
Alaska Airlines Alaska Airlines
AS215
10:50
Delta Air Lines Delta Air Lines
DL332
15:47
Delta Air Lines Delta Air Lines
DL2889
16:58
Alaska Airlines Alaska Airlines
AS288
18:40
Alaska Airlines Alaska Airlines
AS306
19:25
Delta Air Lines Delta Air Lines
DL797
07:03
Alaska Airlines Alaska Airlines
AS459
07:55
Delta Air Lines Delta Air Lines
DL384
09:03
Alaska Airlines Alaska Airlines
AS215
10:50
Delta Air Lines Delta Air Lines
DL332
15:47
Delta Air Lines Delta Air Lines
DL2889
16:58
Alaska Airlines Alaska Airlines
AS288
18:40
Alaska Airlines Alaska Airlines
AS306
19:25
Delta Air Lines Delta Air Lines
DL797
07:03
Alaska Airlines Alaska Airlines
AS459
07:55
Delta Air Lines Delta Air Lines
DL384
09:03
Alaska Airlines Alaska Airlines
AS215
10:50
Delta Air Lines Delta Air Lines
DL332
15:47
Delta Air Lines Delta Air Lines
DL2889
16:58
Alaska Airlines Alaska Airlines
AS288
18:40
Alaska Airlines Alaska Airlines
AS306
19:25
Delta Air Lines Delta Air Lines
DL797
07:03
Alaska Airlines Alaska Airlines
AS459
07:55
Delta Air Lines Delta Air Lines
DL384
09:03
Alaska Airlines Alaska Airlines
AS215
10:50
Delta Air Lines Delta Air Lines
DL332
15:47
Delta Air Lines Delta Air Lines
DL2889
16:58
Alaska Airlines Alaska Airlines
AS288
18:40
Alaska Airlines Alaska Airlines
AS306
19:25
Delta Air Lines Delta Air Lines
DL797
07:03
Alaska Airlines Alaska Airlines
AS459
07:55
Delta Air Lines Delta Air Lines
DL384
09:03
Alaska Airlines Alaska Airlines
AS215
10:50
Delta Air Lines Delta Air Lines
DL332
15:47
Delta Air Lines Delta Air Lines
DL2889
16:58
Alaska Airlines Alaska Airlines
AS288
18:40
Alaska Airlines Alaska Airlines
AS306
19:25
Delta Air Lines Delta Air Lines
DL797
07:03
Alaska Airlines Alaska Airlines
AS459
07:55
Delta Air Lines Delta Air Lines
DL384
09:03
Alaska Airlines Alaska Airlines
AS215
11:15
Delta Air Lines Delta Air Lines
DL332
16:58
Alaska Airlines Alaska Airlines
AS288
17:55
Delta Air Lines Delta Air Lines
DL797
18:37
Alaska Airlines Alaska Airlines
AS306
07:13
Alaska Airlines Alaska Airlines
AS459
07:55
Delta Air Lines Delta Air Lines
DL384
09:03
Alaska Airlines Alaska Airlines
AS215
10:50
Delta Air Lines Delta Air Lines
DL332
18:20
Alaska Airlines Alaska Airlines
AS257
18:42
Delta Air Lines Delta Air Lines
DL797
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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 41 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 64 weekly departures.

Scheduled flight time from BOS to SEA ranges from 6 hours and 11 minutes to 6 hours and 41 minutes. The route covers 2502 miles (4026 km).

64 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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