All airlines flying from Helena (HLN) to Seattle-Tacoma (SEA).

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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Wed 16:10 Helena (HLN) 16:59 Seattle-Tacoma (SEA)
Alaska Airlines AS 2040 Non-stop Embraer EMB 175 (E75) 1:49 Operates only on 2026-03-18
Daily 16:10 Helena (HLN) 16:51 Seattle-Tacoma (SEA)
Alaska Airlines AS 2040 Non-stop Embraer EMB 175 (E75) 1:41 Effective 2026-03-19 through 2026-05-12
Daily 16:36 Helena (HLN) 17:26 Seattle-Tacoma (SEA)
Alaska Airlines AS 2040 Non-stop Embraer EMB 175 (E75) 1:50 Effective 2026-02-12 through 2026-03-17
Daily 16:08 Helena (HLN) 16:55 Seattle-Tacoma (SEA)
Alaska Airlines AS 2222 Non-stop Embraer EMB 175 (E75) 1:47 Effective from 2026-06-10
Daily 16:11 Helena (HLN) 16:56 Seattle-Tacoma (SEA)
Alaska Airlines AS 2222 Non-stop Embraer EMB 175 (E75) 1:45 Effective 2026-05-13 through 2026-06-09
Daily 18:32 Helena (HLN) 19:27 Seattle-Tacoma (SEA)
Alaska Airlines AS 2222 Non-stop Embraer EMB 175 (E75) 1:55 Valid until 2026-01-06
Daily 18:48 Helena (HLN) 19:47 Seattle-Tacoma (SEA)
Alaska Airlines AS 2438 Non-stop Embraer EMB 175 (E75) 1:59 Effective 2026-01-07 through 2026-02-11
Direct Codeshare Flights:
Wed 16:10 Helena (HLN) 16:59 Seattle-Tacoma (SEA)
Hawaiian Airlines HA 4962 Non-stop Embraer EMB 175 (E75) 1:49 Operates only on 2026-03-18
Codeshare flight, operated by Alaska Airlines.(AS 2040)
Daily 16:10 Helena (HLN) 16:51 Seattle-Tacoma (SEA)
Hawaiian Airlines HA 4962 Non-stop Embraer EMB 175 (E75) 1:41 Effective 2026-03-19 through 2026-04-21
Codeshare flight, operated by Alaska Airlines.(AS 2040)
Daily 16:36 Helena (HLN) 17:26 Seattle-Tacoma (SEA)
Hawaiian Airlines HA 4962 Non-stop Embraer EMB 175 (E75) 1:50 Effective 2026-02-12 through 2026-03-17
Codeshare flight, operated by Alaska Airlines.(AS 2040)
Daily 18:48 Helena (HLN) 19:47 Seattle-Tacoma (SEA)
Hawaiian Airlines HA 4962 Non-stop Embraer EMB 175 (E75) 1:59 Effective 2026-01-07 through 2026-02-11
Codeshare flight, operated by Alaska Airlines.(AS 2438)
Daily 18:32 Helena (HLN) 19:27 Seattle-Tacoma (SEA)
Hawaiian Airlines HA 6170 Non-stop Embraer EMB 175 (E75) 1:55 Valid until 2026-01-06
Codeshare flight, operated by Alaska Airlines.(AS 2222)
Daily 16:08 Helena (HLN) 16:55 Seattle-Tacoma (SEA)
Korean Air KE 6240 Non-stop Embraer EMB 175 (E75) 1:47 Effective from 2026-06-10
Codeshare flight, operated by Alaska Airlines.(AS 2222)
Wed 16:10 Helena (HLN) 16:59 Seattle-Tacoma (SEA)
Korean Air KE 6240 Non-stop Embraer EMB 175 (E75) 1:49 Operates only on 2026-03-18
Codeshare flight, operated by Alaska Airlines.(AS 2040)
Daily 16:10 Helena (HLN) 16:51 Seattle-Tacoma (SEA)
Korean Air KE 6240 Non-stop Embraer EMB 175 (E75) 1:41 Effective 2026-03-19 through 2026-05-12
Codeshare flight, operated by Alaska Airlines.(AS 2040)
Daily 16:11 Helena (HLN) 16:56 Seattle-Tacoma (SEA)
Korean Air KE 6240 Non-stop Embraer EMB 175 (E75) 1:45 Effective 2026-05-13 through 2026-06-09
Codeshare flight, operated by Alaska Airlines.(AS 2222)
Daily 16:36 Helena (HLN) 17:26 Seattle-Tacoma (SEA)
Korean Air KE 6240 Non-stop Embraer EMB 175 (E75) 1:50 Effective 2026-02-12 through 2026-03-17
Codeshare flight, operated by Alaska Airlines.(AS 2040)
Daily 18:32 Helena (HLN) 19:27 Seattle-Tacoma (SEA)
Korean Air KE 6240 Non-stop Embraer EMB 175 (E75) 1:55 Valid until 2026-01-06
Codeshare flight, operated by Alaska Airlines.(AS 2222)
Daily 18:48 Helena (HLN) 19:47 Seattle-Tacoma (SEA)
Korean Air KE 6240 Non-stop Embraer EMB 175 (E75) 1:59 Effective 2026-01-07 through 2026-02-11
Codeshare flight, operated by Alaska Airlines.(AS 2438)
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All airlines flying from Helena (HLN) to Seattle-Tacoma (SEA).
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Alaska Airlines AS2040
16:10
Helena (HLN)

16:59
Seattle-Tacoma (SEA)
Operates only on 2026-03-18
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:49, non-stop
Embraer EMB 175 (E75)
Direct Flights:
Alaska Airlines AS2040
16:10
Helena (HLN)

16:51
Seattle-Tacoma (SEA)
Effective 2026-03-19 through 2026-05-12
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:41, non-stop
Embraer EMB 175 (E75)
Direct Flights:
Alaska Airlines AS2040
16:36
Helena (HLN)

17:26
Seattle-Tacoma (SEA)
Effective 2026-02-12 through 2026-03-17
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:50, non-stop
Embraer EMB 175 (E75)
Direct Flights:
Alaska Airlines AS2222
16:08
Helena (HLN)

16:55
Seattle-Tacoma (SEA)
Effective from 2026-06-10
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:47, non-stop
Embraer EMB 175 (E75)
Direct Flights:
Alaska Airlines AS2222
16:11
Helena (HLN)

16:56
Seattle-Tacoma (SEA)
Effective 2026-05-13 through 2026-06-09
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:45, non-stop
Embraer EMB 175 (E75)
Direct Flights:
Alaska Airlines AS2222
18:32
Helena (HLN)

19:27
Seattle-Tacoma (SEA)
Valid until 2026-01-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:55, non-stop
Embraer EMB 175 (E75)
Direct Flights:
Alaska Airlines AS2438
18:48
Helena (HLN)

19:47
Seattle-Tacoma (SEA)
Effective 2026-01-07 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:59, non-stop
Embraer EMB 175 (E75)
Direct Codeshare Flights:
Hawaiian Airlines HA4962
16:10
Helena (HLN)

16:59
Seattle-Tacoma (SEA)
Operates only on 2026-03-18
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Alaska Airlines. (AS 2040)
Duration: 1:49, non-stop
Embraer EMB 175 (E75)
Direct Codeshare Flights:
Hawaiian Airlines HA4962
16:10
Helena (HLN)

16:51
Seattle-Tacoma (SEA)
Effective 2026-03-19 through 2026-04-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Alaska Airlines. (AS 2040)
Duration: 1:41, non-stop
Embraer EMB 175 (E75)
Direct Codeshare Flights:
Hawaiian Airlines HA4962
16:36
Helena (HLN)

17:26
Seattle-Tacoma (SEA)
Effective 2026-02-12 through 2026-03-17
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Alaska Airlines. (AS 2040)
Duration: 1:50, non-stop
Embraer EMB 175 (E75)
Direct Codeshare Flights:
Hawaiian Airlines HA4962
18:48
Helena (HLN)

19:47
Seattle-Tacoma (SEA)
Effective 2026-01-07 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Alaska Airlines. (AS 2438)
Duration: 1:59, non-stop
Embraer EMB 175 (E75)
Direct Codeshare Flights:
Hawaiian Airlines HA6170
18:32
Helena (HLN)

19:27
Seattle-Tacoma (SEA)
Valid until 2026-01-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Alaska Airlines. (AS 2222)
Duration: 1:55, non-stop
Embraer EMB 175 (E75)
Direct Codeshare Flights:
Korean Air KE6240
16:08
Helena (HLN)

16:55
Seattle-Tacoma (SEA)
Effective from 2026-06-10
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Alaska Airlines. (AS 2222)
Duration: 1:47, non-stop
Embraer EMB 175 (E75)
Direct Codeshare Flights:
Korean Air KE6240
16:10
Helena (HLN)

16:59
Seattle-Tacoma (SEA)
Operates only on 2026-03-18
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Alaska Airlines. (AS 2040)
Duration: 1:49, non-stop
Embraer EMB 175 (E75)
Direct Codeshare Flights:
Korean Air KE6240
16:10
Helena (HLN)

16:51
Seattle-Tacoma (SEA)
Effective 2026-03-19 through 2026-05-12
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Alaska Airlines. (AS 2040)
Duration: 1:41, non-stop
Embraer EMB 175 (E75)
Direct Codeshare Flights:
Korean Air KE6240
16:11
Helena (HLN)

16:56
Seattle-Tacoma (SEA)
Effective 2026-05-13 through 2026-06-09
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Alaska Airlines. (AS 2222)
Duration: 1:45, non-stop
Embraer EMB 175 (E75)
Direct Codeshare Flights:
Korean Air KE6240
16:36
Helena (HLN)

17:26
Seattle-Tacoma (SEA)
Effective 2026-02-12 through 2026-03-17
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Alaska Airlines. (AS 2040)
Duration: 1:50, non-stop
Embraer EMB 175 (E75)
Direct Codeshare Flights:
Korean Air KE6240
18:32
Helena (HLN)

19:27
Seattle-Tacoma (SEA)
Valid until 2026-01-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Alaska Airlines. (AS 2222)
Duration: 1:55, non-stop
Embraer EMB 175 (E75)
Direct Codeshare Flights:
Korean Air KE6240
18:48
Helena (HLN)

19:47
Seattle-Tacoma (SEA)
Effective 2026-01-07 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Alaska Airlines. (AS 2438)
Duration: 1:59, non-stop
Embraer EMB 175 (E75)
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Parallax here HLN-SEA
  • A domestic route departing from the Helena airport (HLN) and arriving at Seattle-Tacoma airport (SEA).
  • The flight distance is 489 miles, or 787 km.
  • The timezone of the departure airport is UTC-7 , and the timezone of the arrival airport is UTC-8 . Current time at the point of departure is (loading...), and (loading...) at the point of arrival. There is a (loading...) hour time difference between the airports.
  • For direct flights, the flight time varies between 1:41 and 1:59.
Return (SEA-HLN) flights
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