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Direct flights from Boise to Seattle

Airlines Schedules

BOI - SEA route map All flights from BOI to SEA non-stop. There are direct flights from Boise Air Terminal (BOI), Idaho, USA to Seattle Tacoma International (SEA), Washington, USA with Alaska Airlines and Delta Air Lines. 99 weekly departures are currently scheduled on this route. Departure times range from 05:30 to 21:59 depending on the schedule period. The flight distance is 400 miles (644 km). Flight time ranges from 1 hour and 33 minutes to 2 hours and 20 minutes.

BOI
Boise Air Terminal
USABoise , USA
SEA
Seattle Tacoma
USASeattle , USA
BOI
Boise Air Terminal
USABoise , USA
Seattle Tacoma
USASeattle , USA
SEA
Flight time 1h 33min to 2h 20min
Updated Nov 9, 2026
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Airlines with non-stop routes:

Alaska Airlines oneworld

Departure times vary between 05:30 and 21:59
S
M
T
W
T
F
S
Sun
Mon
Tue
Wed
Thu
Fri
Sat
54 flights/week
54 flights/week

Delta Air Lines SkyTeam

Departure times vary between 06:00 and 19:57
S
M
T
W
T
F
S
Sun
Mon
Tue
Wed
Thu
Fri
Sat
45 flights/week
45 flights/week
Weekday-labels: HAS FLIGHTS UPCOMING NO FLIGHTS
View all flight dates
Flight schedule from Boise 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
Nov 16
Tue
Nov 17
Wed
Nov 18
Thu
Nov 19
Fri
Nov 20
Sat
Nov 21
Sun
Nov 22
AS521
----
----
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----
06:33
06:33
AS410
06:37
06:37
06:37
06:37
----
----
----
AS1590
----
----
----
----
07:07
----
----
AS3029
08:20
08:20
08:20
08:20
08:09
08:07
08:07
AS2347
10:49
10:49
10:49
10:49
10:52
10:52
10:52
AS2120
12:49
12:49
12:49
12:49
----
----
----
AS3174
----
----
----
----
13:02
13:02
13:02
AS359
13:53
13:53
13:53
13:53
14:00
14:00
14:00
AS337
16:16
----
----
16:16
16:20
16:18
16:20
AS2123
18:21
18:21
18:21
18:21
----
----
----
AS2211
----
----
----
----
19:21
19:21
19:21
AS2124
20:59
20:59
20:59
20:59
----
----
----
AS2016
----
----
----
----
21:47
21:47
21:47

The timetable & schedule information was updated at 2026-11-09

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Flight schedule from Boise 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
Nov 16
Tue
Nov 17
Wed
Nov 18
Thu
Nov 19
Fri
Nov 20
Sat
Nov 21
Sun
Nov 22
DL3775
06:40
06:40
06:40
06:40
06:40
06:40
06:40
DL3740
08:55
08:55
08:55
08:55
08:55
08:55
08:55
DL3750
10:37
10:37
10:37
10:37
10:37
10:37
10:37
DL3817
12:13
12:13
12:13
12:13
12:13
12:13
12:13
DL3677
15:38
15:38
15:38
15:38
15:38
15:38
15:38
DL4127
17:59
17:59
17:59
17:59
17:59
17:59
17:59
DL3688
19:18
----
----
19:18
19:18
----
----

The timetable & schedule information was updated at 2026-11-09

RETURN SCHEDULE
CHECK PRICES
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Boise to Seattle scheduled departures

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

Saturday
Sat
Dec 05
13 flights(13)
Sunday
Sun
Dec 06
15 flights(15)
Monday
Mon
Dec 07
15 flights(15)
Tuesday
Tue
Dec 08
13 flights(13)
Wednesday
Wed
Dec 09
13 flights(13)
Thursday
Thu
Dec 10
15 flights(15)
Friday
Fri
Dec 11
15 flights(15)
Time
Airline
Flight
06:35
Delta Air Lines Delta Air Lines
DL3775
06:37
Alaska Airlines Alaska Airlines
AS230
08:02
Alaska Airlines Alaska Airlines
AS3029
08:59
Delta Air Lines Delta Air Lines
DL3740
10:37
Delta Air Lines Delta Air Lines
DL3750
11:42
Alaska Airlines Alaska Airlines
AS2347
12:20
Delta Air Lines Delta Air Lines
DL3817
12:56
Alaska Airlines Alaska Airlines
AS2120
14:11
Alaska Airlines Alaska Airlines
AS359
15:44
Delta Air Lines Delta Air Lines
DL3677
16:10
Alaska Airlines Alaska Airlines
AS337
17:56
Delta Air Lines Delta Air Lines
DL4127
18:00
Alaska Airlines Alaska Airlines
AS3016
06:35
Delta Air Lines Delta Air Lines
DL3775
06:37
Alaska Airlines Alaska Airlines
AS230
08:02
Alaska Airlines Alaska Airlines
AS3029
08:59
Delta Air Lines Delta Air Lines
DL3740
10:36
Delta Air Lines Delta Air Lines
DL3750
11:42
Alaska Airlines Alaska Airlines
AS2347
12:20
Delta Air Lines Delta Air Lines
DL3817
12:56
Alaska Airlines Alaska Airlines
AS2120
14:07
Alaska Airlines Alaska Airlines
AS359
15:44
Delta Air Lines Delta Air Lines
DL3677
16:10
Alaska Airlines Alaska Airlines
AS337
17:56
Delta Air Lines Delta Air Lines
DL4127
18:00
Alaska Airlines Alaska Airlines
AS3016
19:18
Delta Air Lines Delta Air Lines
DL3688
19:45
Alaska Airlines Alaska Airlines
AS2124
06:35
Delta Air Lines Delta Air Lines
DL3775
06:37
Alaska Airlines Alaska Airlines
AS230
08:02
Alaska Airlines Alaska Airlines
AS3029
08:59
Delta Air Lines Delta Air Lines
DL3740
10:37
Delta Air Lines Delta Air Lines
DL3750
11:42
Alaska Airlines Alaska Airlines
AS2347
12:20
Delta Air Lines Delta Air Lines
DL3817
12:56
Alaska Airlines Alaska Airlines
AS2120
14:05
Alaska Airlines Alaska Airlines
AS359
15:44
Delta Air Lines Delta Air Lines
DL3677
16:10
Alaska Airlines Alaska Airlines
AS337
17:56
Delta Air Lines Delta Air Lines
DL4127
18:00
Alaska Airlines Alaska Airlines
AS3016
19:18
Delta Air Lines Delta Air Lines
DL3688
19:45
Alaska Airlines Alaska Airlines
AS2124
06:35
Delta Air Lines Delta Air Lines
DL3775
06:37
Alaska Airlines Alaska Airlines
AS230
08:02
Alaska Airlines Alaska Airlines
AS3029
08:59
Delta Air Lines Delta Air Lines
DL3740
10:37
Delta Air Lines Delta Air Lines
DL3750
11:42
Alaska Airlines Alaska Airlines
AS2347
12:20
Delta Air Lines Delta Air Lines
DL3817
12:56
Alaska Airlines Alaska Airlines
AS2120
14:05
Alaska Airlines Alaska Airlines
AS359
15:44
Delta Air Lines Delta Air Lines
DL3677
16:10
Alaska Airlines Alaska Airlines
AS337
17:56
Delta Air Lines Delta Air Lines
DL4127
18:00
Alaska Airlines Alaska Airlines
AS3016
06:35
Delta Air Lines Delta Air Lines
DL3775
06:37
Alaska Airlines Alaska Airlines
AS230
08:02
Alaska Airlines Alaska Airlines
AS3029
08:59
Delta Air Lines Delta Air Lines
DL3740
10:37
Delta Air Lines Delta Air Lines
DL3750
11:42
Alaska Airlines Alaska Airlines
AS2347
12:20
Delta Air Lines Delta Air Lines
DL3817
12:56
Alaska Airlines Alaska Airlines
AS2120
14:05
Alaska Airlines Alaska Airlines
AS359
15:44
Delta Air Lines Delta Air Lines
DL3677
16:10
Alaska Airlines Alaska Airlines
AS337
17:56
Delta Air Lines Delta Air Lines
DL4127
18:00
Alaska Airlines Alaska Airlines
AS3016
06:35
Delta Air Lines Delta Air Lines
DL3775
06:37
Alaska Airlines Alaska Airlines
AS230
08:02
Alaska Airlines Alaska Airlines
AS3029
08:59
Delta Air Lines Delta Air Lines
DL3740
10:37
Delta Air Lines Delta Air Lines
DL3750
11:42
Alaska Airlines Alaska Airlines
AS2347
12:20
Delta Air Lines Delta Air Lines
DL3817
12:56
Alaska Airlines Alaska Airlines
AS2120
14:05
Alaska Airlines Alaska Airlines
AS359
15:44
Delta Air Lines Delta Air Lines
DL3677
16:10
Alaska Airlines Alaska Airlines
AS337
17:56
Delta Air Lines Delta Air Lines
DL4127
18:00
Alaska Airlines Alaska Airlines
AS3016
19:18
Delta Air Lines Delta Air Lines
DL3688
19:45
Alaska Airlines Alaska Airlines
AS2124
06:35
Delta Air Lines Delta Air Lines
DL3775
06:37
Alaska Airlines Alaska Airlines
AS230
08:02
Alaska Airlines Alaska Airlines
AS3029
08:59
Delta Air Lines Delta Air Lines
DL3740
10:37
Delta Air Lines Delta Air Lines
DL3750
11:42
Alaska Airlines Alaska Airlines
AS2347
12:20
Delta Air Lines Delta Air Lines
DL3817
12:56
Alaska Airlines Alaska Airlines
AS2120
14:05
Alaska Airlines Alaska Airlines
AS359
15:44
Delta Air Lines Delta Air Lines
DL3677
16:10
Alaska Airlines Alaska Airlines
AS337
17:56
Delta Air Lines Delta Air Lines
DL4127
18:00
Alaska Airlines Alaska Airlines
AS3016
19:18
Delta Air Lines Delta Air Lines
DL3688
19:45
Alaska Airlines Alaska Airlines
AS2124
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BOI-SEA flight route
Route map from Boise, BOI to Seattle, SEA. The distance is 400 miles or 644 km.
Boise - Seattle direct flight map
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BOI - SEA route facts

  • Distance
    400 miles (644 km)
  • Flight time
    1 hour and 33 minutes to 2 hours and 20 minutes
  • Airlines
    Alaska Airlines Alaska Airlines
    Delta Delta
  • Airline alliances
    oneworld SkyTeam
  • Cabins
    Economy Business First
  • Hub airports
    Alaska Airlines: SEA (Primary hub.)
    Delta Air Lines: SEA
  • Aircraft
    Alaska Airlines: Boeing 737MAX 8 Passenger, Boeing 737-900 (winglets) Passenger/BBJ3, Embraer 175, Boeing 737-800 (winglets) Passenger/BBJ2, Boeing 737-700 Passenger and Boeing 737MAX 9 Passenger
    Delta Air Lines: Embraer 175 (Enhanced Winglets)

Route FAQ

Alaska Airlines and Delta Air Lines operate non-stop flights from BOI to SEA with 99 weekly departures (Nov 16 – Nov 22, 2026).

Scheduled flight time from BOI to SEA ranges from 1 hour and 33 minutes to 2 hours and 20 minutes. The route covers 400 miles (644 km).

99 weekly departures (Nov 16 – Nov 22, 2026) are currently scheduled on this route, with published departure times ranging from 05:30 to 21:59 depending on the schedule period.

Economy, Business and First are currently scheduled on non-stop flights for this route.
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