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Direct flights from Seattle to Boston

Airlines Schedules

SEA - BOS route map All flights from SEA to BOS non-stop. There are direct flights from Seattle Tacoma International (SEA), Washington, USA to Boston Logan International Airport (BOS), Massachusetts, USA with Alaska Airlines, Delta Air Lines and JetBlue Airways. 65 weekly departures are currently scheduled on this route. Departure times range from 06:00 to 23:59 depending on the schedule period. The flight distance is 2502 miles (4026 km). Flight time ranges from 5 hours and 9 minutes to 5 hours and 44 minutes.

SEA
Seattle Tacoma
USASeattle , USA
BOS
Boston Logan Airport
USABoston , USA
SEA
Seattle Tacoma
USASeattle , USA
Boston Logan Airport
USABoston , USA
BOS
Flight time 5h 9min to 5h 44min
Updated Sep 28, 2026
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Airlines with non-stop routes:

Alaska Airlines oneworld

Departure times vary between 06:00 and 23:59
S
M
T
W
T
F
S
Sun
Mon
Tue
Wed
Thu
Fri
Sat
31 flights/week
31 flights/week

Delta Air Lines SkyTeam

Departure times vary between 07:15 and 23:59
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 11:35 and 23:56
S
M
T
W
T
F
S
Sun
Mon
Tue
Wed
Thu
Fri
Sat
7 flights/week
7 flights/week
Weekday-labels: HAS FLIGHTS UPCOMING NO FLIGHTS
View all flight dates
Flight schedule from Seattle to Boston 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
AS288
07:18
07:18
07:18
07:18
07:18
07:18
----
AS279
----
----
----
----
----
----
08:47
AS306
09:03
09:03
09:03
09:03
09:03
----
----
AS460
15:32
15:32
15:32
15:32
15:32
15:32
15:36
AS214
23:00
23:00
23:00
23:00
23:00
23:59
21:20

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

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Flight schedule from Seattle to Boston 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
DL459
07:24
07:24
07:24
07:24
07:24
07:24
07:24
DL438
11:08
11:08
11:08
11:08
11:08
13:40
13:40
DL474
15:30
15:30
15:30
15:30
15:30
----
----
DL473
23:10
23:10
23:10
23:10
23:10
23:59
23:10

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

RETURN SCHEDULE
CHECK PRICES
Flight schedule from Seattle to Boston 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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Seattle to Boston scheduled departures

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

Saturday
Sat
Oct 24
8 flights(8)
Sunday
Sun
Oct 25
8 flights(8)
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)
Time
Airline
Flight
07:18
Alaska Airlines Alaska Airlines
AS288
07:24
Delta Air Lines Delta Air Lines
DL459
09:03
Alaska Airlines Alaska Airlines
AS306
13:40
Delta Air Lines Delta Air Lines
DL438
15:32
Alaska Airlines Alaska Airlines
AS460
23:00
Alaska Airlines Alaska Airlines
AS214
23:10
Delta Air Lines Delta Air Lines
DL473
23:53
JetBlue Airways JetBlue Airways
B6398
07:18
Alaska Airlines Alaska Airlines
AS288
07:24
Delta Air Lines Delta Air Lines
DL459
09:03
Alaska Airlines Alaska Airlines
AS306
11:08
Delta Air Lines Delta Air Lines
DL438
15:30
Delta Air Lines Delta Air Lines
DL474
15:32
Alaska Airlines Alaska Airlines
AS460
23:00
Alaska Airlines Alaska Airlines
AS214
23:10
Delta Air Lines Delta Air Lines
DL473
07:18
Alaska Airlines Alaska Airlines
AS288
07:24
Delta Air Lines Delta Air Lines
DL459
09:03
Alaska Airlines Alaska Airlines
AS306
11:08
Delta Air Lines Delta Air Lines
DL438
15:30
Delta Air Lines Delta Air Lines
DL474
15:32
Alaska Airlines Alaska Airlines
AS460
23:00
Alaska Airlines Alaska Airlines
AS214
23:10
Delta Air Lines Delta Air Lines
DL473
07:18
Alaska Airlines Alaska Airlines
AS288
07:24
Delta Air Lines Delta Air Lines
DL459
09:03
Alaska Airlines Alaska Airlines
AS306
11:08
Delta Air Lines Delta Air Lines
DL438
15:30
Delta Air Lines Delta Air Lines
DL474
15:32
Alaska Airlines Alaska Airlines
AS460
23:00
Alaska Airlines Alaska Airlines
AS214
23:10
Delta Air Lines Delta Air Lines
DL473
07:18
Alaska Airlines Alaska Airlines
AS288
07:24
Delta Air Lines Delta Air Lines
DL459
09:03
Alaska Airlines Alaska Airlines
AS306
11:08
Delta Air Lines Delta Air Lines
DL438
15:30
Delta Air Lines Delta Air Lines
DL474
15:32
Alaska Airlines Alaska Airlines
AS460
23:00
Alaska Airlines Alaska Airlines
AS214
23:10
Delta Air Lines Delta Air Lines
DL473
07:18
Alaska Airlines Alaska Airlines
AS288
07:24
Delta Air Lines Delta Air Lines
DL459
09:03
Alaska Airlines Alaska Airlines
AS306
11:08
Delta Air Lines Delta Air Lines
DL438
15:30
Delta Air Lines Delta Air Lines
DL474
15:32
Alaska Airlines Alaska Airlines
AS460
23:00
Alaska Airlines Alaska Airlines
AS214
23:10
Delta Air Lines Delta Air Lines
DL473
07:18
Alaska Airlines Alaska Airlines
AS288
07:24
Delta Air Lines Delta Air Lines
DL459
09:03
Alaska Airlines Alaska Airlines
AS306
11:08
Delta Air Lines Delta Air Lines
DL438
15:30
Delta Air Lines Delta Air Lines
DL474
15:32
Alaska Airlines Alaska Airlines
AS460
23:00
Alaska Airlines Alaska Airlines
AS214
23:10
Delta Air Lines Delta Air Lines
DL473
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SEA-BOS flight route
Route map from Seattle, SEA to Boston, BOS. The distance is 2502 miles or 4026 km.
Seattle - Boston direct flight map
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SEA - BOS route facts

  • Distance
    2502 miles (4026 km)
  • Flight time
    5 hours and 9 minutes to 5 hours and 44 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
  • Arrival terminals
    Alaska Airlines: Terminal B
    Delta Air Lines: Terminal A
    JetBlue Airways: Terminal C
  • Aircraft
    Alaska Airlines: Boeing 737-900 (winglets) Passenger/BBJ3, Boeing 737-800 (winglets) Passenger/BBJ2, Boeing 737MAX 9 Passenger 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 SEA to BOS with 65 weekly departures.

Scheduled flight time from SEA to BOS ranges from 5 hours and 9 minutes to 5 hours and 44 minutes. The route covers 2502 miles (4026 km).

65 weekly departures are currently scheduled on this route, with published departure times ranging from 06:00 to 23:59 depending on the schedule period.

Arrival 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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