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

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

The cheapest flights to Helena Regional found within the past 7 days were CA $419 round trip and CA $207 one way. Prices and availability subject to change. Additional terms may apply.

Sat, Oct 10 - Tue, Oct 13
SEA
Seattle
HLN
Helena
CA $419 Roundtrip, found 8 hours ago
CA $419
Roundtrip
found 8 hours ago
Select Delta flight, departing Sat, Oct 10 from Seattle to Helena, returning Tue, Oct 13, priced at CA $419 found 8 hours ago
Wed, Oct 28 - Wed, Nov 11
SEA
Seattle
HLN
Helena
CA $420 Roundtrip, found 2 days ago
CA $420
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Wed, Oct 28 from Seattle to Helena, returning Wed, Nov 11, priced at CA $420 found 2 days ago
Sat, Oct 10 - Tue, Oct 13
SEA
Seattle
HLN
Helena
CA $475 Roundtrip, found 8 hours ago
CA $475
Roundtrip
found 8 hours ago
Select Delta flight, departing Sat, Oct 10 from Seattle to Helena, returning Tue, Oct 13, priced at CA $475 found 8 hours ago
Sat, Oct 10 - Tue, Oct 13
SEA
Seattle
HLN
Helena
CA $482 Roundtrip, found 8 hours ago
CA $482
Roundtrip
found 8 hours ago
Select Delta flight, departing Sat, Oct 10 from Seattle to Helena, returning Tue, Oct 13, priced at CA $482 found 8 hours ago
Sat, Oct 10 - Tue, Oct 13
SEA
Seattle
HLN
Helena
CA $503 Roundtrip, found 8 hours ago
CA $503
Roundtrip
found 8 hours ago
Select Delta flight, departing Sat, Oct 10 from Seattle to Helena, returning Tue, Oct 13, priced at CA $503 found 8 hours ago
Sat, Oct 10 - Tue, Oct 13
SEA
Seattle
HLN
Helena
CA $517 Roundtrip, found 8 hours ago
CA $517
Roundtrip
found 8 hours ago
Select Delta flight, departing Sat, Oct 10 from Seattle to Helena, returning Tue, Oct 13, priced at CA $517 found 8 hours ago
Sat, Oct 10 - Tue, Oct 13
SEA
Seattle
HLN
Helena
CA $553 Roundtrip, found 8 hours ago
CA $553
Roundtrip
found 8 hours ago
Select Alaska Airlines flight, departing Sat, Oct 10 from Seattle to Helena, returning Tue, Oct 13, priced at CA $553 found 8 hours ago
Fri, Oct 9 - Mon, Oct 12
SEA
Seattle
HLN
Helena
CA $555 Roundtrip, found 6 days ago
CA $555
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Fri, Oct 9 from Seattle to Helena, returning Mon, Oct 12, priced at CA $555 found 6 days ago
Sat, Oct 10 - Tue, Oct 13
SEA
Seattle
HLN
Helena
CA $574 Roundtrip, found 8 hours ago
CA $574
Roundtrip
found 8 hours ago
Select Delta flight, departing Sat, Oct 10 from Seattle to Helena, returning Tue, Oct 13, priced at CA $574 found 8 hours ago
Sun, Nov 22 - Sat, Nov 28
SEA
Seattle
HLN
Helena
CA $577 Roundtrip, found 3 days ago
CA $577
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Sun, Nov 22 from Seattle to Helena, returning Sat, Nov 28, priced at CA $577 found 3 days 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.

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*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.