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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. 74 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 Aug 17, 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
33 flights/week
33 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 19:30 • 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
Sep 14
Tue
Sep 15
Wed
Sep 16
Thu
Sep 17
Fri
Sep 18
Sat
Sep 19
Sun
Sep 20
AS459
07:12
07:12
07:12
07:12
07:12
07:12
07:12
AS215
10:03
10:03
10:03
10:03
10:03
10:03
10:03
AS289
16:48
16:48
16:48
16:48
16:48
16:48
16:48
AS306
19:59
19:59
19:59
19:59
19:59
19:59
19:59

The timetable & schedule information was updated at 2026-08-17

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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
Sep 14
Tue
Sep 15
Wed
Sep 16
Thu
Sep 17
Fri
Sep 18
Sat
Sep 19
Sun
Sep 20
DL384
07:55
07:55
07:55
07:55
07:55
07:55
07:55
DL332
11:44
11:44
11:44
11:44
11:44
11:44
11:44
DL2889
16:00
16:00
16:00
16:00
16:00
----
16:00
DL324
19:45
19:45
19:45
19:45
19:45
18:45
19:45

The timetable & schedule information was updated at 2026-08-17

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
Sep 14
Tue
Sep 15
Wed
Sep 16
Thu
Sep 17
Fri
Sep 18
Sat
Sep 19
Sun
Sep 20
B6397
19:20
19:20
19:20
19:20
19:20
19:20
19:20

The timetable & schedule information was updated at 2026-08-17

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
Sep 14
9 flights(9)
Tuesday
Tue
Sep 15
9 flights(9)
Wednesday
Wed
Sep 16
9 flights(9)
Thursday
Thu
Sep 17
9 flights(9)
Friday
Fri
Sep 18
9 flights(9)
Saturday
Sat
Sep 19
8 flights(8)
Sunday
Sun
Sep 20
9 flights(9)
Time
Airline
Flight
07:12
Alaska Airlines Alaska Airlines
AS459
07:55
Delta Air Lines Delta Air Lines
DL384
10:03
Alaska Airlines Alaska Airlines
AS215
11:44
Delta Air Lines Delta Air Lines
DL332
16:00
Delta Air Lines Delta Air Lines
DL2889
16:48
Alaska Airlines Alaska Airlines
AS289
19:20
JetBlue Airways JetBlue Airways
B6397
19:45
Delta Air Lines Delta Air Lines
DL324
19:59
Alaska Airlines Alaska Airlines
AS306
07:12
Alaska Airlines Alaska Airlines
AS459
07:55
Delta Air Lines Delta Air Lines
DL384
10:03
Alaska Airlines Alaska Airlines
AS215
11:44
Delta Air Lines Delta Air Lines
DL332
16:00
Delta Air Lines Delta Air Lines
DL2889
16:48
Alaska Airlines Alaska Airlines
AS289
19:20
JetBlue Airways JetBlue Airways
B6397
19:45
Delta Air Lines Delta Air Lines
DL324
19:59
Alaska Airlines Alaska Airlines
AS306
07:12
Alaska Airlines Alaska Airlines
AS459
07:55
Delta Air Lines Delta Air Lines
DL384
10:03
Alaska Airlines Alaska Airlines
AS215
11:44
Delta Air Lines Delta Air Lines
DL332
16:00
Delta Air Lines Delta Air Lines
DL2889
16:48
Alaska Airlines Alaska Airlines
AS289
19:20
JetBlue Airways JetBlue Airways
B6397
19:45
Delta Air Lines Delta Air Lines
DL324
19:59
Alaska Airlines Alaska Airlines
AS306
07:12
Alaska Airlines Alaska Airlines
AS459
07:55
Delta Air Lines Delta Air Lines
DL384
10:03
Alaska Airlines Alaska Airlines
AS215
11:44
Delta Air Lines Delta Air Lines
DL332
16:00
Delta Air Lines Delta Air Lines
DL2889
16:48
Alaska Airlines Alaska Airlines
AS289
19:20
JetBlue Airways JetBlue Airways
B6397
19:45
Delta Air Lines Delta Air Lines
DL324
19:59
Alaska Airlines Alaska Airlines
AS306
07:12
Alaska Airlines Alaska Airlines
AS459
07:55
Delta Air Lines Delta Air Lines
DL384
10:03
Alaska Airlines Alaska Airlines
AS215
11:44
Delta Air Lines Delta Air Lines
DL332
16:00
Delta Air Lines Delta Air Lines
DL2889
16:48
Alaska Airlines Alaska Airlines
AS289
19:20
JetBlue Airways JetBlue Airways
B6397
19:45
Delta Air Lines Delta Air Lines
DL324
19:59
Alaska Airlines Alaska Airlines
AS306
07:12
Alaska Airlines Alaska Airlines
AS459
07:55
Delta Air Lines Delta Air Lines
DL384
10:03
Alaska Airlines Alaska Airlines
AS215
11:44
Delta Air Lines Delta Air Lines
DL332
16:48
Alaska Airlines Alaska Airlines
AS289
18:45
Delta Air Lines Delta Air Lines
DL324
19:20
JetBlue Airways JetBlue Airways
B6397
19:59
Alaska Airlines Alaska Airlines
AS306
07:12
Alaska Airlines Alaska Airlines
AS459
07:55
Delta Air Lines Delta Air Lines
DL384
10:03
Alaska Airlines Alaska Airlines
AS215
11:44
Delta Air Lines Delta Air Lines
DL332
16:00
Delta Air Lines Delta Air Lines
DL2889
16:48
Alaska Airlines Alaska Airlines
AS289
19:20
JetBlue Airways JetBlue Airways
B6397
19:45
Delta Air Lines Delta Air Lines
DL324
19:59
Alaska Airlines Alaska Airlines
AS306
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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 and Boeing 737-800 (winglets) Passenger/BBJ2
    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 74 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).

74 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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