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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. 69 weekly departures are currently scheduled on this route. Departure times range from 06:00 to 23:55 depending on the schedule period. The flight distance is 2502 miles (4026 km). Flight time ranges from 5 hours and 14 minutes to 6 hours and 5 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 14min to 6h 5min
Updated Jun 29, 2026
CHANGE DIRECTION

Airlines with non-stop routes:

Alaska Airlines oneworld

Departure times vary between 06:00 and 23:40
S
M
T
W
T
F
S
Sun
Mon
Tue
Wed
Thu
Fri
Sat
32 flights/week
32 flights/week

Delta Air Lines SkyTeam

Departure times vary between 07:20 and 23:15
S
M
T
W
T
F
S
Sun
Mon
Tue
Wed
Thu
Fri
Sat
23 flights/week
23 flights/week

JetBlue Airways Low-cost carrier

Departure times vary between 11:35 and 23:55
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 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
Jul 27
Tue
Jul 28
Wed
Jul 29
Thu
Jul 30
Fri
Jul 31
Sat
Aug 1
Sun
Aug 2
AS1505
06:03
----
----
06:03
06:03
06:03
06:03
AS306
08:23
08:23
08:23
08:23
08:23
08:23
08:23
AS219
10:13
10:13
10:13
10:13
10:13
09:29
10:13
AS460
15:36
15:36
15:36
15:36
15:36
15:36
15:36
AS536
23:18
23:18
23:18
23:18
23:18
----
23:18

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

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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
Jul 27
Tue
Jul 28
Wed
Jul 29
Thu
Jul 30
Fri
Jul 31
Sat
Aug 1
Sun
Aug 2
DL459
07:29
07:29
07:29
07:29
07:29
07:29
07:29
DL438
11:15
11:15
11:15
11:15
11:15
13:30
11:15
DL474
16:00
16:00
16:00
16:00
16:00
----
16:00
DL473
23:15
23:15
23:15
23:15
23:15
23:15
23:15

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

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
Jul 27
Tue
Jul 28
Wed
Jul 29
Thu
Jul 30
Fri
Jul 31
Sat
Aug 1
Sun
Aug 2
B6398
11:45
11:45
11:45
11:45
11:45
13:42
11:45
B6198
23:46
23:46
23:46
23:46
23:44
23:20
23:46

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

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.

Sunday
Sun
Jul 26
11 flights(11)
Monday
Mon
Jul 27
11 flights(11)
Tuesday
Tue
Jul 28
10 flights(10)
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)
Time
Airline
Flight
06:03
Alaska Airlines Alaska Airlines
AS1505
07:29
Delta Air Lines Delta Air Lines
DL459
08:23
Alaska Airlines Alaska Airlines
AS306
10:13
Alaska Airlines Alaska Airlines
AS219
11:15
Delta Air Lines Delta Air Lines
DL438
11:45
JetBlue Airways JetBlue Airways
B6398
15:36
Alaska Airlines Alaska Airlines
AS460
16:00
Delta Air Lines Delta Air Lines
DL474
23:15
Delta Air Lines Delta Air Lines
DL473
23:18
Alaska Airlines Alaska Airlines
AS536
23:46
JetBlue Airways JetBlue Airways
B6198
06:03
Alaska Airlines Alaska Airlines
AS1505
07:29
Delta Air Lines Delta Air Lines
DL459
08:23
Alaska Airlines Alaska Airlines
AS306
10:13
Alaska Airlines Alaska Airlines
AS219
11:15
Delta Air Lines Delta Air Lines
DL438
11:45
JetBlue Airways JetBlue Airways
B6398
15:36
Alaska Airlines Alaska Airlines
AS460
16:00
Delta Air Lines Delta Air Lines
DL474
23:15
Delta Air Lines Delta Air Lines
DL473
23:18
Alaska Airlines Alaska Airlines
AS536
23:46
JetBlue Airways JetBlue Airways
B6198
07:29
Delta Air Lines Delta Air Lines
DL459
08:23
Alaska Airlines Alaska Airlines
AS306
10:13
Alaska Airlines Alaska Airlines
AS219
11:15
Delta Air Lines Delta Air Lines
DL438
11:45
JetBlue Airways JetBlue Airways
B6398
15:36
Alaska Airlines Alaska Airlines
AS460
16:00
Delta Air Lines Delta Air Lines
DL474
23:15
Delta Air Lines Delta Air Lines
DL473
23:18
Alaska Airlines Alaska Airlines
AS536
23:46
JetBlue Airways JetBlue Airways
B6198
07:29
Delta Air Lines Delta Air Lines
DL459
08:23
Alaska Airlines Alaska Airlines
AS306
10:13
Alaska Airlines Alaska Airlines
AS219
11:15
Delta Air Lines Delta Air Lines
DL438
11:45
JetBlue Airways JetBlue Airways
B6398
15:36
Alaska Airlines Alaska Airlines
AS460
16:00
Delta Air Lines Delta Air Lines
DL474
23:15
Delta Air Lines Delta Air Lines
DL473
23:18
Alaska Airlines Alaska Airlines
AS536
23:46
JetBlue Airways JetBlue Airways
B6198
06:03
Alaska Airlines Alaska Airlines
AS1505
07:29
Delta Air Lines Delta Air Lines
DL459
08:23
Alaska Airlines Alaska Airlines
AS306
10:13
Alaska Airlines Alaska Airlines
AS219
11:15
Delta Air Lines Delta Air Lines
DL438
11:45
JetBlue Airways JetBlue Airways
B6398
15:36
Alaska Airlines Alaska Airlines
AS460
16:00
Delta Air Lines Delta Air Lines
DL474
23:15
Delta Air Lines Delta Air Lines
DL473
23:18
Alaska Airlines Alaska Airlines
AS536
23:46
JetBlue Airways JetBlue Airways
B6198
06:03
Alaska Airlines Alaska Airlines
AS1505
07:29
Delta Air Lines Delta Air Lines
DL459
08:23
Alaska Airlines Alaska Airlines
AS306
10:13
Alaska Airlines Alaska Airlines
AS219
11:15
Delta Air Lines Delta Air Lines
DL438
11:45
JetBlue Airways JetBlue Airways
B6398
15:36
Alaska Airlines Alaska Airlines
AS460
16:00
Delta Air Lines Delta Air Lines
DL474
23:15
Delta Air Lines Delta Air Lines
DL473
23:18
Alaska Airlines Alaska Airlines
AS536
23:44
JetBlue Airways JetBlue Airways
B6198
06:03
Alaska Airlines Alaska Airlines
AS1505
07:29
Delta Air Lines Delta Air Lines
DL459
08:23
Alaska Airlines Alaska Airlines
AS306
09:29
Alaska Airlines Alaska Airlines
AS219
13:30
Delta Air Lines Delta Air Lines
DL438
13:42
JetBlue Airways JetBlue Airways
B6398
15:36
Alaska Airlines Alaska Airlines
AS460
23:15
Delta Air Lines Delta Air Lines
DL473
23:20
JetBlue Airways JetBlue Airways
B6198
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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 14 minutes to 6 hours and 5 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 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 SEA to BOS with 69 weekly departures.

Scheduled flight time from SEA to BOS ranges from 5 hours and 14 minutes to 6 hours and 5 minutes. The route covers 2502 miles (4026 km).

69 weekly departures are currently scheduled on this route, with published departure times ranging from 06:00 to 23:55 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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