£71 Cheap Flights from Seattle (SEA) to Helena (HLN)

Popular airlines among travellers

Alaska Airlines
Delta
United
    Plan, book, fly with confidence
  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 25% on select hotels after you book a flight*
  • payments icon
    Earn twice
    Earn your airline miles on top of our rewards

Cheap Flights from Seattle (SEA) to Helena (HLN)

Prices were available within the past 7 days and start at £71 for one-way flights and £154 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Delta
Delta
Delta
Alaska Airlines
Delta
Alaska Airlines
Alaska Airlines
Alaska Airlines
Alaska Airlines
Flight from Seattle to Helena route information
Origin airport
Seattle - Tacoma Intl.
Destination airport
Helena Regional
Airlines serving
Alaska Airlines, Delta, United
Return price
£154
Distance
781 km
Average flight time
1 hour 34 mins

Compare flights from Seattle to Helena easily and book in confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Seattle to Helena. Operating between them 2 flights per day, 20 airlines cover the route. And Alaska Airlines, Korean Air fly direct, getting you to Helena Regional in just 3hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Seattle - Tacoma Intl. to Helena Regional.  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Seattle - Tacoma Intl. (SEA) to Helena Regional (HLN) 

The easiest way to view the best deals on flights from Seattle to Helena today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Seattle - Tacoma Intl. to Helena Regional start at just £154 and range up to £197.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Seattle and Helena
  • booking your flight during May, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Seattle to Helena flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Seattle - Tacoma Intl. to Helena Regional for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Frequently asked questions

How much is a flight from Sea-Tac Airport to Helena Regional Airport (HLN)?
The lowest price advertised for a round-trip flight from SEA to Helena Regional Airport is £154. But you better act soon. This price is based on fares offered within the last 7 days on Expedia for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Seattle - Tacoma Intl. Airport (SEA) to HLN?
This varies between air carriers, as each one has its own terms and conditions. Visit the Customer Service Portal, where you’ll find instructions on how to cancel online.
How do I find cheap flights from Seattle - Tacoma Intl. Airport (SEA) to Helena Regional Airport (HLN) that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you’re searching for Sea-Tac Airport to Helena Regional Airport (HLN) flights, you’ll see a “no change fees” filter for you to select.
How far is the flight from SEA to Helena Regional Airport?
With a flight distance of 790 kilometres, it’s only a short hop from Sea-Tac Airport to Helena Regional Airport. It might be a quick one, but it’s still worth bringing something to keep you entertained on board.
Which airlines fly direct from Seattle - Tacoma Intl. Airport (SEA) to Helena Regional Airport (HLN)?
Alaska Airlines (AS) will fly you from SEA to Helena Regional Airport safely and reliably. Choose from 30 flights every month on this route.
Are SEA to Helena Regional Airport (HLN) flight tickets cheaper when they're purchased at the last minute?
Flight prices from SEA to Helena Regional Airport are available up to a year prior to departure on Expedia. And although you may occasionally nab great last-minute deal, it’s never something you can count on. Also, booking your flights well in advance means you’ll have more options — and you can avoid landing the dreaded middle seat! We frequently update our fares to bring you the biggest bargains, so keep checking in for all the latest specials.
*Available to Expedia members.