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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. 102 weekly departures are currently scheduled on this route. Departure times range from 06:00 to 20:52 depending on the schedule period. The flight distance is 400 miles (644 km). Flight time ranges from 1 hour and 33 minutes to 1 hour and 58 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 1h 58min
Updated Jul 13, 2026
CHANGE DIRECTION

Airlines with non-stop routes:

Alaska Airlines oneworld

Departure times vary between 06:00 and 20:52
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 19:30
S
M
T
W
T
F
S
Sun
Mon
Tue
Wed
Thu
Fri
Sat
48 flights/week
48 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
Aug 10
Tue
Aug 11
Wed
Aug 12
Thu
Aug 13
Fri
Aug 14
Sat
Aug 15
Sun
Aug 16
AS423
06:23
06:23
06:23
06:23
06:23
06:23
06:23
AS2070
08:15
08:15
08:15
08:15
08:15
08:15
08:15
AS2166
10:00
10:00
10:00
10:00
10:00
10:00
10:00
AS2159
11:42
11:42
11:42
11:42
11:42
11:42
11:42
AS2231
13:06
13:06
----
13:06
13:06
----
13:06
AS740
16:35
16:35
16:35
16:35
16:35
16:35
16:35
AS296
18:13
18:13
18:13
18:13
18:13
18:10
18:13
AS2352
20:47
20:47
20:47
20:47
20:47
20:47
20:47

The timetable & schedule information was updated at 2026-07-13

RETURN SCHEDULE
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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
Aug 10
Tue
Aug 11
Wed
Aug 12
Thu
Aug 13
Fri
Aug 14
Sat
Aug 15
Sun
Aug 16
DL3775
06:49
06:49
06:49
06:49
06:49
06:49
06:49
DL3740
08:59
08:59
08:59
08:59
08:59
08:59
08:59
DL3750
10:35
10:35
10:35
10:35
10:35
10:35
10:35
DL3678
12:23
12:23
12:23
12:23
12:23
12:23
12:23
DL3958
15:29
15:29
15:29
15:29
15:29
15:29
15:29
DL4127
17:59
17:59
17:59
17:59
17:59
17:59
17:59
DL3688
19:28
----
----
19:28
19:28
----
19:28

The timetable & schedule information was updated at 2026-07-13

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.

Monday
Mon
Aug 10
15 flights(15)
Tuesday
Tue
Aug 11
14 flights(14)
Wednesday
Wed
Aug 12
13 flights(13)
Thursday
Thu
Aug 13
15 flights(15)
Friday
Fri
Aug 14
15 flights(15)
Saturday
Sat
Aug 15
13 flights(13)
Sunday
Sun
Aug 16
15 flights(15)
Time
Airline
Flight
06:23
Alaska Airlines Alaska Airlines
AS423
06:49
Delta Air Lines Delta Air Lines
DL3775
08:15
Alaska Airlines Alaska Airlines
AS2070
08:59
Delta Air Lines Delta Air Lines
DL3740
10:00
Alaska Airlines Alaska Airlines
AS2166
10:35
Delta Air Lines Delta Air Lines
DL3750
11:42
Alaska Airlines Alaska Airlines
AS2159
12:23
Delta Air Lines Delta Air Lines
DL3678
13:06
Alaska Airlines Alaska Airlines
AS2231
15:29
Delta Air Lines Delta Air Lines
DL3958
16:35
Alaska Airlines Alaska Airlines
AS740
17:59
Delta Air Lines Delta Air Lines
DL4127
18:13
Alaska Airlines Alaska Airlines
AS296
19:28
Delta Air Lines Delta Air Lines
DL3688
20:47
Alaska Airlines Alaska Airlines
AS2352
06:23
Alaska Airlines Alaska Airlines
AS423
06:49
Delta Air Lines Delta Air Lines
DL3775
08:15
Alaska Airlines Alaska Airlines
AS2070
08:59
Delta Air Lines Delta Air Lines
DL3740
10:00
Alaska Airlines Alaska Airlines
AS2166
10:35
Delta Air Lines Delta Air Lines
DL3750
11:42
Alaska Airlines Alaska Airlines
AS2159
12:23
Delta Air Lines Delta Air Lines
DL3678
13:06
Alaska Airlines Alaska Airlines
AS2231
15:29
Delta Air Lines Delta Air Lines
DL3958
16:35
Alaska Airlines Alaska Airlines
AS740
17:59
Delta Air Lines Delta Air Lines
DL4127
18:13
Alaska Airlines Alaska Airlines
AS296
20:47
Alaska Airlines Alaska Airlines
AS2352
06:23
Alaska Airlines Alaska Airlines
AS423
06:49
Delta Air Lines Delta Air Lines
DL3775
08:15
Alaska Airlines Alaska Airlines
AS2070
08:59
Delta Air Lines Delta Air Lines
DL3740
10:00
Alaska Airlines Alaska Airlines
AS2166
10:35
Delta Air Lines Delta Air Lines
DL3750
11:42
Alaska Airlines Alaska Airlines
AS2159
12:23
Delta Air Lines Delta Air Lines
DL3678
15:29
Delta Air Lines Delta Air Lines
DL3958
16:35
Alaska Airlines Alaska Airlines
AS740
17:59
Delta Air Lines Delta Air Lines
DL4127
18:13
Alaska Airlines Alaska Airlines
AS296
20:47
Alaska Airlines Alaska Airlines
AS2352
06:23
Alaska Airlines Alaska Airlines
AS423
06:49
Delta Air Lines Delta Air Lines
DL3775
08:15
Alaska Airlines Alaska Airlines
AS2070
08:59
Delta Air Lines Delta Air Lines
DL3740
10:00
Alaska Airlines Alaska Airlines
AS2166
10:35
Delta Air Lines Delta Air Lines
DL3750
11:42
Alaska Airlines Alaska Airlines
AS2159
12:23
Delta Air Lines Delta Air Lines
DL3678
13:06
Alaska Airlines Alaska Airlines
AS2231
15:29
Delta Air Lines Delta Air Lines
DL3958
16:35
Alaska Airlines Alaska Airlines
AS740
17:59
Delta Air Lines Delta Air Lines
DL4127
18:13
Alaska Airlines Alaska Airlines
AS296
19:28
Delta Air Lines Delta Air Lines
DL3688
20:47
Alaska Airlines Alaska Airlines
AS2352
06:23
Alaska Airlines Alaska Airlines
AS423
06:49
Delta Air Lines Delta Air Lines
DL3775
08:15
Alaska Airlines Alaska Airlines
AS2070
08:59
Delta Air Lines Delta Air Lines
DL3740
10:00
Alaska Airlines Alaska Airlines
AS2166
10:35
Delta Air Lines Delta Air Lines
DL3750
11:42
Alaska Airlines Alaska Airlines
AS2159
12:23
Delta Air Lines Delta Air Lines
DL3678
13:06
Alaska Airlines Alaska Airlines
AS2231
15:29
Delta Air Lines Delta Air Lines
DL3958
16:35
Alaska Airlines Alaska Airlines
AS740
17:59
Delta Air Lines Delta Air Lines
DL4127
18:13
Alaska Airlines Alaska Airlines
AS296
19:28
Delta Air Lines Delta Air Lines
DL3688
20:47
Alaska Airlines Alaska Airlines
AS2352
06:23
Alaska Airlines Alaska Airlines
AS423
06:49
Delta Air Lines Delta Air Lines
DL3775
08:15
Alaska Airlines Alaska Airlines
AS2070
08:59
Delta Air Lines Delta Air Lines
DL3740
10:00
Alaska Airlines Alaska Airlines
AS2166
10:35
Delta Air Lines Delta Air Lines
DL3750
11:42
Alaska Airlines Alaska Airlines
AS2159
12:23
Delta Air Lines Delta Air Lines
DL3678
15:29
Delta Air Lines Delta Air Lines
DL3958
16:35
Alaska Airlines Alaska Airlines
AS740
17:59
Delta Air Lines Delta Air Lines
DL4127
18:10
Alaska Airlines Alaska Airlines
AS296
20:47
Alaska Airlines Alaska Airlines
AS2352
06:23
Alaska Airlines Alaska Airlines
AS423
06:49
Delta Air Lines Delta Air Lines
DL3775
08:15
Alaska Airlines Alaska Airlines
AS2070
08:59
Delta Air Lines Delta Air Lines
DL3740
10:00
Alaska Airlines Alaska Airlines
AS2166
10:35
Delta Air Lines Delta Air Lines
DL3750
11:42
Alaska Airlines Alaska Airlines
AS2159
12:23
Delta Air Lines Delta Air Lines
DL3678
13:06
Alaska Airlines Alaska Airlines
AS2231
15:29
Delta Air Lines Delta Air Lines
DL3958
16:35
Alaska Airlines Alaska Airlines
AS740
17:59
Delta Air Lines Delta Air Lines
DL4127
18:13
Alaska Airlines Alaska Airlines
AS296
19:28
Delta Air Lines Delta Air Lines
DL3688
20:47
Alaska Airlines Alaska Airlines
AS2352
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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 1 hour and 58 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 737-900 (winglets) Passenger/BBJ3, Boeing 737-800 (winglets) Passenger/BBJ2, Boeing 737MAX 9 Passenger, Boeing 737MAX 8 Passenger, Boeing 737-700 Passenger and Embraer 175
    Delta Air Lines: Embraer 175 (Enhanced Winglets)

Route FAQ

Alaska Airlines and Delta Air Lines operate non-stop flights from BOI to SEA with 102 weekly departures.

Scheduled flight time from BOI to SEA ranges from 1 hour and 33 minutes to 1 hour and 58 minutes. The route covers 400 miles (644 km).

102 weekly departures are currently scheduled on this route, with published departure times ranging from 06:00 to 20:52 depending on the schedule period.

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