Helena

$94+ Cheap flights from Seattle to Helena (SEA - HLN)

SEA — HLN
Dec 11 — Dec 181
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1. Tell us where you want to go

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Cheap flight deals from Seattle to Helena

Cheapest flights from Seattle to Helena

Thu 12/31:35 pm -
Nonstop1h 37m
Sun 12/64:49 pm -
Nonstop1h 56m
Deal found 11/8$387
Thu 12/35:30 am -
1 stop6h 00m
Sun 12/61:10 pm -
1 stop4h 45m
Deal found 11/8$407
Fri 11/201:38 pm -
Nonstop1h 38m
Mon 11/234:53 pm -
Nonstop1h 52m
Deal found 11/6$437
Mon 11/235:35 am -
1 stop5h 52m
Fri 11/271:07 pm -
1 stop4h 46m
Deal found 11/7$457
Fri 11/205:05 am -
1 stop7h 35m
Mon 11/232:23 pm -
1 stop7h 56m
Deal found 11/6$547
Sat 11/215:35 am -
1 stop5h 52m
Wed 11/251:07 pm -
1 stop4h 46m
Deal found 11/6$548
Tue 11/241:38 pm -
Nonstop1h 38m
Sat 11/284:53 pm -
Nonstop1h 52m
Deal found 11/10$602
Wed 11/181:28 pm -
Nonstop1h 36m
Sun 11/224:53 pm -
Nonstop1h 52m
Deal found 11/10$627
Thu 12/35:05 am -
1 stop7h 47m
Sun 12/62:35 pm -
2 stops10h 09m
Deal found 11/8$633
Wed 11/185:35 am -
1 stop5h 52m
Sun 11/221:07 pm -
1 stop4h 46m
Deal found 11/10$647
Wed 11/115:35 am -
1 stop5h 52m
Sat 11/141:07 pm -
1 stop4h 46m
Deal found 11/7$757

Find flight deals from Seattle to Helena

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$217
(Alaska Airlines)

One-way from

$94
(Delta)

Popular in

June

Cheapest in

January

Average price

$338

Good round-trip deal

$282 or less
Provider with most accurate pricing for Seattle/Tacoma Intl-Helena flight deals.
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Helena flights.
From Seattle/Tacoma Intl to Helena
One-way flight from Seattle/Tacoma Intl to Helena
Highest demand for flights based on searches. 17% potential increase in price ($63 potential increase over avg. RT price).
Cheapest flight prices on average. 6% potential price decrease ($18 potential savings vs. average RT price).
Average for round-trip flights in November 2026
Price to beat on a round-trip flight from Seattle/Tacoma Intl to Helena.

Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Seattle to Helena that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleHelena

SEA Seattle/Tacoma Intl - HLN Helena

SEAHLN

Seattle/Tacoma Intl

Sat 12/12

5:30 am-12:30 pm

1 stop6h 00m

Helena

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$94

SeattleHelena

SEA Seattle/Tacoma Intl - HLN Helena

SEAHLN

Seattle/Tacoma Intl

Sun 1/3

1:02 pm-3:41 pm

Nonstop1h 39m

Helena

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$154

SeattleHelena

SEA Seattle/Tacoma Intl - HLN Helena

SEAHLN

Seattle/Tacoma Intl

Sat 1/23

1:56 pm-4:31 pm

Nonstop1h 35m

Helena

Wed 1/27

5:08 pm-5:58 pm

Nonstop1h 50m

$217

SeattleHelena

SEA Seattle/Tacoma Intl - HLN Helena

SEAHLN

Seattle/Tacoma Intl

Sun 1/10

1:56 pm-4:31 pm

Nonstop1h 35m

Helena

Sat 1/16

5:08 pm-5:58 pm

Nonstop1h 50m

$225

SeattleHelena

SEA Seattle/Tacoma Intl - HLN Helena

SEAHLN

Seattle/Tacoma Intl

Tue 12/1

5:30 am-12:30 pm

1 stop6h 00m

Helena

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$234
Quickest round-trip

SeattleHelena

SEA Seattle/Tacoma Intl - HLN Helena

SEAHLN

Seattle/Tacoma Intl

Tue 12/15

1:35 pm-4:12 pm

Nonstop1h 37m

Helena

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$244

SeattleHelena

SEA Seattle/Tacoma Intl - HLN Helena

SEAHLN

Seattle/Tacoma Intl

Sat 1/23

5:00 am-1:40 pm

1 stop7h 40m

Helena

Wed 1/27

6:15 am-1:50 pm

1 stop8h 35m

$327

SeattleHelena

SEA Seattle/Tacoma Intl - HLN Helena

SEAHLN

Seattle/Tacoma Intl

Tue 12/1

1:35 pm-4:12 pm

Nonstop1h 37m

Helena

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$329

SeattleHelena

SEA Seattle/Tacoma Intl - HLN Helena

SEAHLN

Seattle/Tacoma Intl

Thu 12/24

1:02 pm-3:41 pm

Nonstop1h 39m

Helena

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$344

SeattleHelena

SEA Seattle/Tacoma Intl - HLN Helena

SEAHLN

Seattle/Tacoma Intl

Fri 11/20

12:45 pm-9:31 pm

1 stop7h 46m

Helena

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$354

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/9

Showing 1-10 of 18 resultsSorted by cheapest first
1
2

Compare providers for flights from Seattle to Helena

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Helena in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Seattle-Helena flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Helena flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Helena flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Helena flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Helena flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Seattle to Helena

Have a flexible travel schedule? Discover the best time to fly to Helena from Seattle with our price prediction graph.
Estimated round-trip price

Cheapflights Insights

Everything you need to know about your flight from Seattle to Helena

What is the cheapest time of day to fly from SEA to HLN?

When flying from Seattle to Helena, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing Helena

See what other customers who have flown with Alaska Airlines from Seattle to Helena have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Crew

8.5

Overall

7.9

Entertainment

7.0

Food

7.0

Comfort

7.8

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2026

SEA - RNO

There was a delay and my husband needs a wheelchair and we were moved from 1 gate to another.

Crew

8.5

Overall

7.9

Entertainment

7.0

Food

7.0

Comfort

7.8

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2026

SEA - RNO

There was a delay and my husband needs a wheelchair and we were moved from 1 gate to another.

Related info for your journey

  • How popular is this Seattle to Helena flight route?

  • How long is the flight from Seattle to Helena?

    Alaska Airlines and United Airlines can get you from Seattle to Helena in just under 1h 35m. Your travel time can differ by up to 6h 05m. There are 489 mi between Seattle and Helena. This flight may include one or multiple stops.

  • What is the cheapest airline to fly from Seattle to Helena round-trip?

    Alaska Airlines, at $137, was found to be the cheapest airline from Seattle to Helena.. Alaska Airlines is priced at 55% lower than the current average price of a flight leaving 3 months from now.

  • What are the most reliable airlines from Seattle to Helena?

    Before booking your flight to Helena from Seattle, check out the most reliable airlines to get you to your destination on time: Qatar Airways (100%), Alaska Airlines (85%), Horizon Air( 85%).

  • What are the cheapest flights from Seattle to Helena?

    While on average a flight from Seattle to Helena is generally $397, our data shows the cheapest flight currently is $282. When looking at the most popular route, (Seattle/Tacoma Intl - Helena), you can expect to pay $302 for that flight.

  • Can I find deals for flights from Seattle to Helena that include hotel bookings?

    Yes. In addition to deals on Seattle to Helena flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Helena?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Helena.

  • Can I find deals for business class flights from Seattle to Helena?

    Yes. Cheapflights offers flight deals from Seattle to Helena by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Top airline flying from Seattle to Helena

AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$137Average$267FlexibilityNo cancel feeOn-time75%

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