Cheap flight tickets from Seattle to Helena

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Flight deals from Seattle to Helena

Looking for a cheap last-minute deal or the best return flight from Seattle to Helena? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Seattle to Helena

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Seattle to Helena flights are currently cheapest in May.

Direct flights from Seattle to Helena

Seattle to Helena: Alternative routes

Compare routes from Seattle to Helena below. You may find an airport to fly into that's cheaper, faster, or easier than Helena.

Seattle to Helena: Flight information

The things to know before you go.
Cheapest flight foundRM1,114
Cheapest month to flyMay
Average flight time1 hr, 37 mins
Most popular airlineQatar Airways
Average flights per week32

Finding cheap flights from Seattle to Helena: Frequently asked questions

The best price we found for a return flight from Seattle to Helena is RM1,113. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
1 hour and 37 minutes is the average flight time from Seattle to Helena.
Qatar Airways, Alaska Airlines and Horizon Air fly direct from Seattle to Helena.
As of February 2026, there are 32 flights per week flying from Seattle to Helena.
The cheapest month to fly from Seattle to Helena is usually May.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Seattle to Helena Airport on Sunday, 24 May 2026.
Yes – the average flight time is 1 hour and 37 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Helena but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Helena is around 40 days in advance, so don’t leave your flight to the last minute.
The cheapest airline that flies to Helena is Delta .

Travelling from Seattle to Helena Regional Airport (HLN): What you need to know

  • Your next big escape starts at Seattle's main airport, Seattle-Tacoma International Airport (SEA). Check out the options for catching a flight from Seattle to Helena Regional Airport (HLN) departing from this base.

  • 1 hour 35 minutes is the average journey time for a direct Seattle to Helena Regional Airport flight.

  • Helena Regional Airport is located in Helena. The city runs on the UTC-6 timezone and is one hour ahead of Seattle.

  • Take your pick of 7 direct services a week between Seattle-Tacoma International Airport (SEA) and Helena Regional Airport (HLN). This is the most popular route, with Alaska Airlines offering a 12:55pm departure from SEA to HLN.

  • Your flight from Seattle to HLN won't wait if you're running late, so get to the airport on time. Arrive up to one hour in advance for domestic flights and two hours ahead when you're flying internationally.

  • Delays at check-in and security are likely if you're flying during high season, so allow a bit more breathing room. The recommendation for peak times? Arrive up to four hours early for international flights and at least two hours for domestic departures.

Airports in Seattle

Seattle-Tacoma International Airport (SEA)

  • You can hop on a direct flight from Seattle to Helena Regional Airport (HLN) departing from Seattle-Tacoma International Airport (SEA).

  • When jetting out of SEA, you can catch a direct flight from Seattle to Helena Regional Airport with Alaska Airlines.

  • Alaska Airlines ranks first in bookings for flights from SEA to HLN.

  • Alaska Airlines leads the way in punctuality. An impressive 86.44% of its departures on this route land as scheduled.

  • SEA is around 23 kilometres from central Seattle. If you're catching a cab, driving or ride-sharing from the centre, it'll take 20 minutes or so to get there, depending on traffic conditions. If you're taking public transport, expect the travel time to be around 55 minutes.

  • Planning to catch an early flight from Seattle to Helena Regional Airport? Avoid rushing to the terminal (and sneak in some extra snooze time) by staying at one of these hotels near Seattle-Tacoma International Airport:

  • 81.27% of flights departing from Seattle-Tacoma International Airport reach their destination on schedule. With its dependable on-time performance, disruptions are unlikely when setting off from SEA.

Lake Union Sea Plane Base Airport (LKE)

  • Using public transport, you can travel from central Seattle to LKE in about 25 minutes. The airport is roughly 3 kilometres away, and making the trip by car takes approximately 10 minutes.

  • Kick off your holiday early with an additional night away from home. Before your Seattle to HLN flight, stay in one of these hotels close to Lake Union Sea Plane Base Airport:

About Helena Regional Airport (HLN)

Getting from Helena Regional Airport (HLN) to central Helena

  • Central Helena is around 6 kilometres from Helena Regional Airport and takes about 15 minutes to reach by car. Look into how to get from the airport to the city, whether that's with a car hire, cab or ride-share.

  • If you're travelling by public transport, expect a journey of around 1 hour 50 minutes.

How to find the cheapest flights from Seattle to Helena Regional Airport (HLN)

  • RM674 is currently the best price for a one-way ticket from Seattle to Helena Regional Airport. A return flight starts from RM1,114. These fares may change based on demand.

  • Book four months before you want to travel. Pricing trends suggest that this is the ideal window for finding cheap flights from Seattle to HLN.

  • Schedule your trip for September. That's the best month for landing cheap Seattle to Helena Regional Airport tickets. If your travel dates are flexible, use the 'Whole month' tool to find the lowest price across every month.

  • Be the first to know about deals for plane tickets from Seattle to HLN by creating a Price Alert. We'll send you an email or push notification on the app when a new discounted fare appears.

  • Save on your flight from Seattle to Helena Regional Airport by using filters. Select your ideal times, number of stops and airlines, then sort the results by 'Cheapest' for the best deals.

The best time to fly from Seattle to Helena Regional Airport (HLN)

  • It's time to figure out when to book your flight from Seattle to Helena Regional Airport (HLN). July is the most popular month to visit Helena. If you prefer a quieter vibe, think about going in February.

  • The warmest month in Helena is July, with temperatures ranging between 9ºC (48ºF) and 31ºC (88ºF). Book your Seattle to HLN plane ticket then if you enjoy this type of weather.

  • December has temperatures of between -15ºC (5ºF) and 2ºC (36ºF). Search for cheap tickets from Seattle to Helena Regional Airport around that time if you like travelling in cooler conditions.

More about Helena

  • When it comes to looking for somewhere to rest your head, you'll find the most popular stays in Helena right here. Explore these options once you've locked in your flight from Seattle to Helena Regional Airport:

  • Spring Meadow Lake State Park and Mount Helena are a couple of top-rated attractions to add to your Helena must-do list. Keep the adventure rolling by checking out Lewis & Clark Brewing Company.

Explore more of the United States

  • Billings is just one of the many cities in the United States waiting to be discovered once you've seen Helena. Around 290 kilometres away to the east, top sights here include Museum of Women's History, St. Patrick's Co-Cathedral and Yellowstone Art Museum.

  • If you're eager to discover another side of the United States, consider Missoula, roughly 153 kilometres west of Helena. Mt Jumbo Trailhead, Mt Jumbo and Street Art are the start of reasons to visit.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.