Cheap Flights From Seattle - Tacoma Intl. (SEA) To Helena Regional (HLN)

Wander Wisely with exceptional service, 24/7 supportOpens in a new window

Feel at ease with free flight cancellations within 24 hours of booking

Change your flight without a fee on select flights

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

The cheapest flights to Helena Regional found within the past 7 days were CA $191 round trip and CA $123 one way. Prices and availability subject to change. Additional terms may apply.

Sat, Apr 18 - Wed, Apr 22
SEA
Seattle
HLN
Helena
CA $191 Roundtrip, found 1 day ago
CA $191
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Sat, Apr 18 from Seattle to Helena, returning Wed, Apr 22, priced at CA $191 found 1 day ago
Sat, Apr 18 - Wed, Apr 22
SEA
Seattle
HLN
Helena
CA $278 Roundtrip, found 1 day ago
CA $278
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Sat, Apr 18 from Seattle to Helena, returning Wed, Apr 22, priced at CA $278 found 1 day ago
Sat, Apr 18 - Wed, Apr 22
SEA
Seattle
HLN
Helena
CA $287 Roundtrip, found 1 day ago
CA $287
Roundtrip
found 1 day ago
Select Delta flight, departing Sat, Apr 18 from Seattle to Helena, returning Wed, Apr 22, priced at CA $287 found 1 day ago
Sat, Apr 18 - Wed, Apr 22
SEA
Seattle
HLN
Helena
CA $288 Roundtrip, found 1 day ago
CA $288
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Sat, Apr 18 from Seattle to Helena, returning Wed, Apr 22, priced at CA $288 found 1 day ago
Sat, Apr 18 - Wed, Apr 22
SEA
Seattle
HLN
Helena
CA $320 Roundtrip, found 1 day ago
CA $320
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Sat, Apr 18 from Seattle to Helena, returning Wed, Apr 22, priced at CA $320 found 1 day ago
Sat, Apr 18 - Wed, Apr 22
SEA
Seattle
HLN
Helena
CA $326 Roundtrip, found 1 day ago
CA $326
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Sat, Apr 18 from Seattle to Helena, returning Wed, Apr 22, priced at CA $326 found 1 day ago
Mon, May 18 - Tue, May 19
SEA
Seattle
HLN
Helena
CA $336 Roundtrip, found 17 hours ago
CA $336
Roundtrip
found 17 hours ago
Select Alaska Airlines flight, departing Mon, May 18 from Seattle to Helena, returning Tue, May 19, priced at CA $336 found 17 hours ago
Wed, Jun 17 - Sun, Jun 21
SEA
Seattle
HLN
Helena
CA $351 Roundtrip, found 2 days ago
CA $351
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Wed, Jun 17 from Seattle to Helena, returning Sun, Jun 21, priced at CA $351 found 2 days ago
Sun, May 24 - Sat, May 30
SEA
Seattle
HLN
Helena
CA $354 Roundtrip, found 1 day ago
CA $354
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Sun, May 24 from Seattle to Helena, returning Sat, May 30, priced at CA $354 found 1 day ago
Sat, Apr 18 - Wed, Apr 22
SEA
Seattle
HLN
Helena
CA $361 Roundtrip, found 1 day ago
CA $361
Roundtrip
found 1 day ago
Select Delta flight, departing Sat, Apr 18 from Seattle to Helena, returning Wed, Apr 22, priced at CA $361 found 1 day ago

Frequently asked questions

Are there direct flights from Sea-Tac Airport to Helena Regional Airport (HLN)?
The only thing separating you and your next incredible adventure is a single flight. Alaska Airlines is the only carrier that operates direct services between SEA and Helena Regional Airport (HLN), so it's a good idea to book ahead.
What airlines fly from Sea-Tac Airport to Helena Regional Airport?
Chosen the dates for your big adventure? Want to fly straight from Seattle to Helena? With Alaska Airlines offering up to 30 flights per month, you'll be in the air in next to no time.
What is the best day to buy a plane ticket?
Airfares offered on Friday tend to be the cheapest, according to flight demand on Travelocity.ca in 2021. Purchasing your airfares on a Thursday or Saturday can also provide better value, however our advice if you're looking to save money is to avoid booking on a Wednesday or Sunday. Our data shows that those two days have the highest ticket values on average, so keep this in mind if you're browsing flight deals.
What are the cheapest days to fly?
Frequent travellers may already know this, but earlier in the week is often the cheapest time to fly. Flights departing on a Monday are the cheapest of the week. Since flights towards the middle of the week tend to be more popular, this causes the prices to rise. This is why, on average, airfares booked on Travelocity.ca in 2021 were most expensive for Wednesday departures.
How far in advance can you book a flight?
Here's the deal: It is typically possible to start comparing international airfares on Travelocity.ca up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 2-4 weeks prior to their travel dates.*According to flight demand on Travelocity.ca from January to December 2021. Savings are subject to change and may vary depending on selections made.

Explore More Ways to Travel with Travelocity

*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.