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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. 74 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 11 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 11min to 6h 5min
Updated Aug 17, 2026
CHANGE DIRECTION

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
33 flights/week
33 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 23:55
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
Sep 14
Tue
Sep 15
Wed
Sep 16
Thu
Sep 17
Fri
Sep 18
Sat
Sep 19
Sun
Sep 20
AS357
07:40
07:40
07:40
07:40
07:40
07:40
07:40
AS306
10:19
10:19
10:19
10:19
10:19
10:19
10:19
AS460
15:29
15:29
15:29
15:29
15:29
15:29
15:29
AS214
23:06
23:06
23:06
23:06
23:06
23:06
23:06

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

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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
Sep 14
Tue
Sep 15
Wed
Sep 16
Thu
Sep 17
Fri
Sep 18
Sat
Sep 19
Sun
Sep 20
DL459
07:16
07:16
07:16
07:16
07:16
07:16
07:16
DL438
11:11
11:11
11:11
11:11
11:11
13:40
11:11
DL474
16:05
16:05
16:05
16:05
16:05
----
16:05
DL473
23:08
23:08
23:08
23:08
23:08
23:08
23:08

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

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
Sep 14
Tue
Sep 15
Wed
Sep 16
Thu
Sep 17
Fri
Sep 18
Sat
Sep 19
Sun
Sep 20
B6398
23:42
23:42
23:42
23:42
23:42
23:42
23:42

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

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.

Friday
Fri
Sep 11
8 flights(8)
Saturday
Sat
Sep 12
8 flights(8)
Sunday
Sun
Sep 13
9 flights(9)
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)
Time
Airline
Flight
07:16
Delta Air Lines Delta Air Lines
DL459
07:40
Alaska Airlines Alaska Airlines
AS357
10:19
Alaska Airlines Alaska Airlines
AS306
13:35
Delta Air Lines Delta Air Lines
DL438
15:29
Alaska Airlines Alaska Airlines
AS460
23:06
Alaska Airlines Alaska Airlines
AS214
23:08
Delta Air Lines Delta Air Lines
DL473
23:42
JetBlue Airways JetBlue Airways
B6398
07:16
Delta Air Lines Delta Air Lines
DL459
07:40
Alaska Airlines Alaska Airlines
AS357
10:19
Alaska Airlines Alaska Airlines
AS306
13:40
Delta Air Lines Delta Air Lines
DL438
15:29
Alaska Airlines Alaska Airlines
AS460
23:06
Alaska Airlines Alaska Airlines
AS214
23:08
Delta Air Lines Delta Air Lines
DL473
23:42
JetBlue Airways JetBlue Airways
B6398
07:16
Delta Air Lines Delta Air Lines
DL459
07:40
Alaska Airlines Alaska Airlines
AS357
10:19
Alaska Airlines Alaska Airlines
AS306
11:11
Delta Air Lines Delta Air Lines
DL438
15:29
Alaska Airlines Alaska Airlines
AS460
16:05
Delta Air Lines Delta Air Lines
DL474
23:06
Alaska Airlines Alaska Airlines
AS214
23:08
Delta Air Lines Delta Air Lines
DL473
23:42
JetBlue Airways JetBlue Airways
B6398
07:16
Delta Air Lines Delta Air Lines
DL459
07:40
Alaska Airlines Alaska Airlines
AS357
10:19
Alaska Airlines Alaska Airlines
AS306
11:11
Delta Air Lines Delta Air Lines
DL438
15:29
Alaska Airlines Alaska Airlines
AS460
16:05
Delta Air Lines Delta Air Lines
DL474
23:06
Alaska Airlines Alaska Airlines
AS214
23:08
Delta Air Lines Delta Air Lines
DL473
23:42
JetBlue Airways JetBlue Airways
B6398
07:16
Delta Air Lines Delta Air Lines
DL459
07:40
Alaska Airlines Alaska Airlines
AS357
10:19
Alaska Airlines Alaska Airlines
AS306
11:11
Delta Air Lines Delta Air Lines
DL438
15:29
Alaska Airlines Alaska Airlines
AS460
16:05
Delta Air Lines Delta Air Lines
DL474
23:06
Alaska Airlines Alaska Airlines
AS214
23:08
Delta Air Lines Delta Air Lines
DL473
23:42
JetBlue Airways JetBlue Airways
B6398
07:16
Delta Air Lines Delta Air Lines
DL459
07:40
Alaska Airlines Alaska Airlines
AS357
10:19
Alaska Airlines Alaska Airlines
AS306
11:11
Delta Air Lines Delta Air Lines
DL438
15:29
Alaska Airlines Alaska Airlines
AS460
16:05
Delta Air Lines Delta Air Lines
DL474
23:06
Alaska Airlines Alaska Airlines
AS214
23:08
Delta Air Lines Delta Air Lines
DL473
23:42
JetBlue Airways JetBlue Airways
B6398
07:16
Delta Air Lines Delta Air Lines
DL459
07:40
Alaska Airlines Alaska Airlines
AS357
10:19
Alaska Airlines Alaska Airlines
AS306
11:11
Delta Air Lines Delta Air Lines
DL438
15:29
Alaska Airlines Alaska Airlines
AS460
16:05
Delta Air Lines Delta Air Lines
DL474
23:06
Alaska Airlines Alaska Airlines
AS214
23:08
Delta Air Lines Delta Air Lines
DL473
23:42
JetBlue Airways JetBlue Airways
B6398
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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 11 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 74 weekly departures.

Scheduled flight time from SEA to BOS ranges from 5 hours and 11 minutes to 6 hours and 5 minutes. The route covers 2502 miles (4026 km).

74 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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