Cheap flights from Seattle to Helena

Seattle-Tacoma
SEA
Helena
HLN

Flight deals from Seattle to Helena

Below you can see the best deals on flights Seattle — Helena for upcoming dates. Direct and connecting flights from various airlines — compare prices and choose the right ticket.

The lowest price for the next 2 months is on 12 September, from $137.

Top 10 cheap flights from Seattle to Helena

About the Seattle — Helena flight

Looking for cheap flights from Seattle to Helena? Compare fares from different airlines, check the flight schedule and travel time — and book your Seattle — Helena ticket online at the best price.

The route has direct flights — around 10 flights per week, flights are operated by Alaska Airlines, Hawaiian Airlines, a nonstop flight takes about 1 h 35 min, the distance between the cities is around 789 km.

Planning your trip? You may find our Helena travel guide, how to get from the airport into town and Helena weather forecast useful. To catch a low fare, use the low-price calendar and the monthly price chart on this page.

Facts about this route

from $137Min. price
SeptemberCheapest
MarchPeak season
YesDirect flights
789 kmDistance
1 h 35 minTravel time
2Airlines
10 / wkFlights

Flight schedule from Seattle to Helena

The table shows direct flights from Seattle to Helena on the selected date. The flight takes approximately 1 h 35 min. Regular flights are operated by Alaska Airlines and Hawaiian Airlines. Departures from Seattle-Tacoma International Airport and Paine Field airports, arrivals at Helena Regional Airport.

For each flight, the following details are shown: departure time (local), arrival city and airport, flight number and airline, terminal or gate, and status. Click on a flight to open its details and go to ticket search. To view flights on a different day, change the date above the table.

Today
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Last update: 01 Sep 2026

Flight ticket prices by day: Seattle — Helena

Below is a calendar of the lowest flight ticket prices for Seattle — Helena by day. Pick a convenient date and instantly see the fare. The cheapest flights on this route start from $137 in September, and the most expensive are around $174 in March. If your travel dates are flexible, the calendar will help you find the best price for your preferred period. To view round-trip fares, switch to the "Round trip" tab above the calendar, select your departure date — and the right-hand calendar will highlight the lowest prices for return flights on each day.

 
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Prices by month

Average one-way fares from Seattle to Helena by month. Tickets are usually cheapest in February (around $118) and priciest in December (about $244) — use the table and chart below to pick the best time to fly.

MonthAverage priceLevelMonthAverage priceLevelMonthAverage priceLevel
Jan$127lowMay$149mediumSep$145medium
Feb$118lowJun$172highOct$136low
Mar$140mediumJul$190highNov$199high
Apr$136mediumAug$177highDec$244high

Some values are estimated based on seasonality.

When to fly

Weather in Helena: it is warmest in July (up to 28 °C on average) and coolest in February (around -3 °C). The driest month is September.

Tickets are usually cheapest in September and most expensive in March. Compare prices and weather by month in the charts below to pick the best time to fly.

Temperature · Helena

Dry and wet days · Helena

Wind speed and direction · Helena

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How to get the best deal on a Seattle — Helena ticket

  • Book ahead: fares for Seattle — Helena are usually lower 3–8 weeks before departure than at the last minute.
  • Play with your dates — Tuesday, Wednesday and Saturday departures are often cheaper than Friday and Sunday.
  • Seattle is served by more than one airport — compare fares and travel time to each before you book.
  • Flights Seattle — Helena operate on Sundays, Tuesdays, Wednesdays, Thursdays and Saturdays — keep that in mind when picking your travel dates.
  • The cheapest month to fly to Helena is usually September — plan your trip around it if your dates are flexible.
  • Compare direct and connecting flights: nonstop is faster, while a connection is sometimes noticeably cheaper.
  • Watch the low-price calendar and the monthly price trend on this page — they make it easier to catch a good date.
  • Travelling light? Pick a cabin-baggage-only fare — tickets without checked luggage are noticeably cheaper.
  • Get to the airport in good time — about 2–3 hours before an international departure and roughly an hour before a domestic one.

Airlines

Flights on the Seattle — Helena route are operated by 2 airlines; Alaska Airlines runs the most flights (around 50% of all flights). Compare carriers, flight shares and schedules below.

  • Alaska AirlinesAS
    2x/week
    WebsiteFleet: 31545M pax/year
    • Direct flight SEA → HLN2x/week
      Duration
      1h 33m
      Days
      MTWTFSS
  • Hawaiian AirlinesHA
    2x/week
    WebsiteFleet: 7511M pax/year
    • Direct flight SEA → HLN2x/week
    50.0%

Cities and airports on the Seattle — Helena route

Flights Seattle — Helena depart from Seattle-Tacoma International Airport and Paine Field and arrive at Helena Regional Airport. Below are pages for the cities, countries, and airports on the route: airlines, schedules, and travel guides.

Departure airports
Arrival airports

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Frequently asked questions about the Seattle — Helena flight

How long is the flight from Seattle to Helena?

A nonstop Seattle — Helena flight takes about 1 h 35 min — the distance between the cities is around 789 km.

How far is it from Seattle to Helena?

The distance from Seattle to Helena is about 789 km, which a nonstop flight covers in around 1 h 35 min.

Are there direct flights from Seattle to Helena?

Yes, there are nonstop flights Seattle — Helena — around 10 flights per week.

Which airlines fly from Seattle to Helena?

Airlines operating Seattle — Helena include Alaska Airlines, Hawaiian Airlines. See the full list with schedules in the "Airlines" section on this page.

Which airports do Seattle — Helena flights use?

Flights from Seattle depart from Seattle-Tacoma International Airport, Paine Field, and arrive at Helena Regional Airport. If a city has more than one airport, check which one your ticket uses before you travel.

How much is a ticket from Seattle to Helena?

The price of a Seattle — Helena ticket depends on your travel date, season and demand: it is usually cheapest to fly in September, and most expensive in March. Tickets typically cost between $137 and $174. Check the current lowest fare and low-price calendar on this page.

When is the best time to book flights Seattle — Helena?

Flights Seattle — Helena are usually cheaper when booked in advance — a few weeks before departure and away from peak dates; the most budget-friendly month to fly is September. Compare prices by month in the price trend chart on this page.

How can I find the cheapest flights from Seattle to Helena?

To catch a low fare Seattle — Helena, book a few weeks in advance, keep your dates flexible, and compare airlines and connecting options. The low-price calendar and monthly price chart on this page show the cheapest days and months at a glance: the most budget-friendly month to fly is usually September.

How early should I arrive at the airport?

For international flights, plan to be at the airport about 2–3 hours before departure, and around an hour before a domestic flight. Allow extra time during busy travel seasons and at large hubs, where check-in and security lines can be longer.

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