SEA - HLN

$177 Find Cheap Flights from Seattle to Helena - Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$177
Typical prices: $187-$392
Delta
Sun 12/2Wed 12/12
SEA - HLN • 1 stop
Cheapest non-stop
$207
Typical prices: $187-$392
Alaska Airlines
Sat 12/1Sat 12/8
SEA - HLN • Non-stop
Nonstop flights
You can fly direct with Alaska Airlines. Average duration is 1h 37m
Direct flights
+1
Direct flights
+1
When to travel
Cheapest • 51% price drop
Most popular
Good to know
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Good to know
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Flight Deals

Cheap Flights from Seattle to Helena (SEA-HLN)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Seattle to Helena

Sat, Dec 5 - Wed, Dec 9
Delta Logo
5:30 am - 12:30 pmSEA  Seattle/Tacoma Intl-HLN Helena
6h 00m1 stop Salt Lake City
Delta Logo
1:10 pm - 4:55 pmHLN  Helena-SEA Seattle/Tacoma Intl
4h 45m1 stop Salt Lake City
$177Delta
Wed, Dec 2 - Wed, Dec 9
Delta Logo
5:30 am - 12:30 pmSEA  Seattle/Tacoma Intl-HLN Helena
6h 00m1 stop Salt Lake City
Delta Logo
1:10 pm - 4:55 pmHLN  Helena-SEA Seattle/Tacoma Intl
4h 45m1 stop Salt Lake City
$177Delta
Wed, Dec 2 - Tue, Dec 8
Delta Logo
5:30 am - 12:30 pmSEA  Seattle/Tacoma Intl-HLN Helena
6h 00m1 stop Salt Lake City
Delta Logo
1:10 pm - 6:47 pmHLN  Helena-SEA Seattle/Tacoma Intl
6h 37m1 stop Salt Lake City
$177Delta
Wed, Dec 2 - Sun, Dec 13
Delta Logo
5:30 am - 12:30 pmSEA  Seattle/Tacoma Intl-HLN Helena
6h 00m1 stop Salt Lake City
Delta Logo
1:10 pm - 6:47 pmHLN  Helena-SEA Seattle/Tacoma Intl
6h 37m1 stop Salt Lake City
$177Delta
Wed, Dec 2 - Sat, Dec 12
Delta Logo
5:30 am - 12:30 pmSEA  Seattle/Tacoma Intl-HLN Helena
6h 00m1 stop Salt Lake City
Delta Logo
1:10 pm - 6:47 pmHLN  Helena-SEA Seattle/Tacoma Intl
6h 37m1 stop Salt Lake City
$177Delta
Wed, Dec 2 - Fri, Dec 11
Delta Logo
5:30 am - 12:30 pmSEA  Seattle/Tacoma Intl-HLN Helena
6h 00m1 stop Salt Lake City
Delta Logo
1:10 pm - 6:47 pmHLN  Helena-SEA Seattle/Tacoma Intl
6h 37m1 stop Salt Lake City
$177Delta
Wed, Dec 2 - Mon, Dec 14
Delta Logo
5:30 am - 12:30 pmSEA  Seattle/Tacoma Intl-HLN Helena
6h 00m1 stop Salt Lake City
Delta Logo
1:10 pm - 4:55 pmHLN  Helena-SEA Seattle/Tacoma Intl
4h 45m1 stop Salt Lake City
$177Delta
Wed, Dec 2 - Sat, Dec 12
Alaska Airlines Logo
1:35 pm - 4:12 pmSEA  Seattle/Tacoma Intl-HLN Helena
1h 37mnonstop
Alaska Airlines Logo
4:49 pm - 5:45 pmHLN  Helena-SEA Seattle/Tacoma Intl
1h 56mnonstop
$207Alaska Airlines
Tue, Dec 1 - Wed, Dec 9
Alaska Airlines Logo
1:35 pm - 4:12 pmSEA  Seattle/Tacoma Intl-HLN Helena
1h 37mnonstop
Alaska Airlines Logo
4:49 pm - 5:45 pmHLN  Helena-SEA Seattle/Tacoma Intl
1h 56mnonstop
$207Alaska Airlines
Tue, Dec 1 - Sat, Dec 12
Alaska Airlines Logo
1:35 pm - 4:12 pmSEA  Seattle/Tacoma Intl-HLN Helena
1h 37mnonstop
Alaska Airlines Logo
4:49 pm - 5:45 pmHLN  Helena-SEA Seattle/Tacoma Intl
1h 56mnonstop
$207Alaska Airlines
Booking Insights

Price, demand and travel trends for Seattle to Helena flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

How much is a round-trip flight from Seattle to Helena?

Round-trip flights from Seattle to Helena typically range from $187 to $392. The lowest price found in the past 5 days was $177, on Delta.

What's the cheapest day of the week to fly from Seattle to Helena?

Based on deals KAYAK users found in the last 12 months, Tuesday is the cheapest day of the week to fly from Seattle to Helena. It’s 30% cheaper than the average day, while Sunday is the most expensive, with prices 78% higher.

Key details for Seattle to Helena flights

Low season

February

Cheapest flight

$177
Beat the crowds with an average 55% drop in travelers.
The most popular month to fly with an average 51% increase in travelers.
Round-trip flight from Seattle to Helena

When to book flights from Seattle to Helena

Are your dates flexible? Find out the best times to travel from Seattle to Helena based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Seattle to Helena flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What are the earliest and latest flights from Seattle to Helena?

    These are the earliest and latest flight times available from Seattle to Helena:

    • Earliest: departs at 1:02 pm and lands at 2:39 pm
    • Latest: departs at 1:48 pm and lands at 3:25 pm.

    The flight takes about 1h 37m.

  • What cabin classes can I book on flights from Seattle to Helena?

    Two cabin classes are available on flights from Seattle to Helena:

    • Economy Class
    • Business Class

  • How long is a flight from Seattle to Helena?

    A nonstop flight from Seattle to Helena takes 1h 37m, covering 489 miles.

  • Do I need a passport to fly from Seattle to Helena?

    No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

  • How much should I expect to pay for a Seattle to Helena flight?

    Round-trip flights from Seattle to Helena range from $187 to $392, with an average of $267 over the past 12 months. Anything below $187 counts as a good deal.

  • Which aircraft model is used most often on flights from Seattle to Helena?

    The Embraer 175 family is used most often on this route, operated mainly by Alaska Airlines and Hawaiian Airlines. Other aircraft seen on the route include Boeing 737 MAX 8 variants.

  • How are flight departures from Seattle to Helena spread across the day?

    Afternoon is the busiest departure period on Seattle to Helena flights, with 100% of flights leaving in that window. Morning departures account for 0%, evening flights for 0%, and night flights for 0%.

  • Which airlines offer Wi-Fi on Seattle to Helena flights?

    Alaska Airlines is the only airline on the Seattle to Helena route offering in-flight Wi-Fi. Pricing depends on fare class.

  • How are flight prices from Seattle to Helena looking right now?

    One-way fares from Seattle to Helena are currently higher than usual. Average one-way flight prices are about $554, which is 68% above the typical average for this route.

  • What car rental options are available at Helena Airport (HLN)?

    Helena Airport (HLN) hosts 5 major car rental companies, with daily rates averaging $84 for economy cars. Top options include:

    • Budget
    • Hertz
    • Enterprise Rent-A-Car
    • Avis
    • National

  • Which airports can I use when flying from Seattle to Helena?

    Flights from Seattle to Helena usually depart from Seattle/Tacoma Intl (SEA) and arrive at Helena (HLN).

  • Can I save money by using flexible dates for flights from Seattle to Helena?

    Yes. Flexible dates can save you up to 61% on flights from Seattle to Helena. Tuesday is the cheapest departure day at $187 round-trip on average, while Sunday is the most expensive at $477, a difference of $290.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What airlines fly from Seattle to Helena?

    Only Alaska Airlines operates flights between Seattle and Helena.

  • What is the time difference between Seattle and Helena?

    Helena is 1 hour ahead of Seattle (Mountain Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

  • Which airlines offer extra legroom and free seat selection on Seattle to Helena flights?

    Among airlines operating Seattle to Helena flights:

    • Alaska Airlines: offers extra legroom; offers free seat selection

    Extra legroom and free seat selection availability depends on fare class and route.

  • Which airlines include bags at no extra cost on Seattle to Helena flights?

    Here are some options for this route, based on selected ticket types and cabin classes:

    • Alaska Airlines: a cabin bag and a checked bag in Economy Class

    Bag allowance can vary by ticket type, cabin class, route and airline, so always check the fare details before booking.

Your guide to booking Seattle to Helena flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Tuesday departure and avoid flying on Sunday. On this route, Tuesday flights average $187, about $290 less than Sunday fares (61% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Seattle to Helena trip for January. Fares historically average $131 round-trip in that month - typically $341 less than the most expensive month, which is October (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Helena Airport.

    • La Quinta Inn & Suites by Wyndham Helena
    • Home2 Suites By Hilton Helena
    • Baymont by Wyndham Helena

Prefer to fly direct from Seattle to Helena?

 
Find which airlines fly direct from Seattle/Tacoma Intl Airport to Helena Airport, which days they fly and book direct flights.

Direct departures

Seattle/Tacoma Intl to Helena

Monday

Alaska Airlines

Alaska Airlines

Tuesday

Alaska Airlines

Alaska Airlines

Wednesday

Alaska Airlines

Alaska Airlines

Thursday

Alaska Airlines

Alaska Airlines

Friday

Alaska Airlines

Alaska Airlines

Saturday

Alaska Airlines

Alaska Airlines

Sunday

Alaska Airlines

Alaska Airlines

See more direct flights

Direct returns

Helena to Seattle/Tacoma Intl

Monday

Alaska Airlines

Alaska Airlines

Tuesday

Alaska Airlines

Alaska Airlines

Wednesday

Alaska Airlines

Alaska Airlines

Thursday

Alaska Airlines

Alaska Airlines

Friday

Alaska Airlines

Alaska Airlines

Saturday

Alaska Airlines

Alaska Airlines

Sunday

Alaska Airlines

Alaska Airlines

See more direct flights

More options for your flight from Seattle to Helena

Complete your trip to Helena with a hotel stay or car rental