Seattle to Helena (SEA–HLN) — Airlines, Schedules & Connections

SEA Airport Page →
490 mi airlines charter/private 14/wk
On-time Some delays Frequent delays
Flight Schedule 4 flights Verified 48m ago
Nonstop Charter / private 1-Stop 2-Stop Hide separate tickets Hide overnight Hide codeshares
  Flight Airline AC Dep Arr Dur OTP Sched  
✈ Nonstop
✓
→
AS2222+5
AS Alaska
E75L
2:05 PM
PDT
4:41 PM
MDT
1h 36m
32%
M T W T F S S
Prices
✓
→
AS2206
Starts Oct 3 Seat map
AS Alaska
E75 Seat map
2:14 PM
PDT
4:49 PM
MDT
1h 35m
32%
M T W T F S S
Prices
✓
←
AS2222+5
AS Alaska
E75L
5:18 PM
MDT
6:14 PM
PDT
1h 56m
—
M T W T F S S
Prices
✓
←
AS2206
Starts Oct 3 Seat map
AS Alaska
E75 Seat map
5:26 PM
MDT
6:18 PM
PDT
1h 52m
—
M T W T F S S
Prices

No flights match your filters.

No scheduled airline flights on this route — it's flown by charter / private operators (). No nonstop flights on this route. connecting options below.

✦ 1-Stop connections via 2 hubs
SLC Salt Lake City 4h 48m AMASAY → DL Salt Lake City (SLC) to Helena flights
DEN Denver 5h 47m 8CAFAS → UA Denver (DEN) to Helena flights
✦ 1-STOP More options, longer trips
✧ 2-STOP Loading... Reach the hardest destinations
Seattle to Helena
1 carrier, 14 flights/week nonstop.
1 Airlines 490 mi 1h 36m nonstop +1h ahead

SEA–HLN is served by 1 airline with nonstop service. Alaska Airlines leads the route. The flight covers 490 miles in approximately 1h 36m. Beyond nonstop, 1-stop connecting options are also available.

Also explore Choose a flight to see its seat map SEA Routes HLN Routes SEA Live Flights HLN Live Flights SEA Delays
All flights from Helena (HLN) Helena to Seattle flights
Carriers on this route

Airline Landscape

All carriers operating nonstop SEA–HLN service, compared side by side.
Airline Freq/wk Aircraft Duration Dep OTP Alliance Codeshares
AS Alaska Airlines Also: KE, QR 14 E75, E75L 1h35-1h36 49% Oneworld KE, QR
Aircraft on this route
E75 Embraer E175 – AS
E75L Embraer E175 Long Wing – AS
Alliance coverage
Oneworld: AS (14 flights/wk, 100%)
OTP based on airport-level delay snapshots. Duration ranges reflect seasonal/directional variation.
Schedule

Weekly Schedule Pattern

Nonstop flight frequency by day of week, SEA to HLN direction.
Mon
2
flights
Tue
2
flights
Wed
2
flights
Thu
2
flights
Fri
2
flights
Sat
2
flights
Sun
2
flights
Departure time distribution
12 AM6 AM12 PM6 PM12 AM
Morning departures
Afternoon/evening departures
2
Nonstop flights
14
Outbound / wk
14
Return / wk
Connections

Connection Landscape

Beyond nonstop. 1-stop and 2-stop options for SEA to HLN.
1-STOP
One-Stop Connections
2
Hubs
~4h
Fastest
~5h
Longest
SLC ~4h 48m DEN ~5h 47m
Verified with published schedule alignment and minimum connection time.
2-STOP
Two-Stop Connections
190
Candidates
Two-stop connections loaded in the connections tab above.
Connections computed from published schedules with minimum connection time verification. Use the interactive explorer above the fold to filter by airline, tier, and layover time.
Reliability

On-Time Performance

What to expect at each end of your journey.
Outbound
SEA → HLN
49%
Frequent delays expected. Consider flexible booking.
Departing
49%
Return
HLN → SEA
58%
Frequent delays expected. Consider flexible booking.
Arriving
58%
OTP = percentage of flights arriving within 15 min of schedule. Based on airport-level delay snapshots. SEA delays →
Know before you go

Travel Essentials

Practical planning for this route.
Time Difference
+1h
Helena is 1 hour ahead of Seattle.
SEA: PDT · HLN: MDT

When it's 6:00 PM in Seattle, it's 7:00 PM in Helena.
Distance & Flight Time
490 mi / 788 km
Nonstop flight time is approximately 1h 36m gate to gate.
Getting to SEA

Link Light Rail runs from downtown Seattle (Westlake station) to the airport in 38 minutes ($3.50 peak). Trains run every 6–12 minutes during peak hours from 5am to 1am. Ride-shares run $30–50 from downtown; SR-99 and I-5 can be heavily congested southbound during afternoon rush (3–7pm).

Sound Transit 574 express bus serves Tacoma ($2.50–4). Sounder commuter rail connects Tacoma to the airport area via a shuttle.

Facts

SEA–HLN Quick Facts

Key statistics for the Seattle to Helena route.
Route details
Distance490 mi / 788 km
Flight time1h 36m
Time difference+1 hour
Airlines (nonstop)1
Weekly flights14 out / 14 return
1-stop connectionsAvailable
Origin: SEA
Full nameSeattle–Tacoma International Airport
IATA / ICAOSEA / KSEA
TimezoneAmerica/Los_Angeles
Passengers/yr50.8M
Elevation433 ft / 132 m
Destination: HLN
Full nameHelena Regional Airport
IATA / ICAOHLN / KHLN
TimezoneAmerica/Denver
Passengers/yr0.2M
Elevation3,877 ft / 1,182 m
FAQ

Frequently Asked Questions

Common questions about SEA to HLN flights.
Nonstop flights from Seattle–Tacoma International Airport to Helena Regional Airport take about 1h 36m gate to gate. The route covers 490 miles.
1 airline operates flights from SEA to HLN: Alaska Airlines.
This route has daily service. Check the schedule above for departure days and times in each direction.
Yes, 1-stop connections are available, ranked by layover time. Common connecting points include Salt Lake City and Denver.
On a single ticket, yes. Your bags are checked through to HLN and move between planes without you. On two separate tickets you collect your bags at the connecting airport and recheck them, so build in extra layover time.
Helena is 1 hour ahead of Seattle.
Yes, return flights from HLN to SEA are available. Use the direction toggle at the top to view the return schedule.
Click the 'Search Flights' button to check availability and prices on Google Flights. You can also compare airlines and schedules on this page to find the best option.
See the On-Time Performance section for the latest delay data at both airports. This shows departure and arrival reliability to help you plan.
Route data is updated regularly from official airline schedules. On-time performance data comes from recent airport delay snapshots.

Flights from SEA to HLN

Seattle–Tacoma International Airport (SEA) and Helena Regional Airport (HLN) are connected by nonstop service from Alaska Airlines. With 14 weekly departures, this is a well served route.

SEA to HLN Flight Duration and Schedule

Nonstop flight time from SEA to HLN is about 1 hours 36 minutes gate to gate. The route covers a distance of 490 miles (788 km). There are approximately 14 weekly flights outbound and 14 return, totaling 28 flights per week in both directions.

Connecting Options and Alternatives

1-stop connecting options are also available, commonly via Salt Lake City and Denver. Two-stop connections are also available via intermediate hubs.