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Helena

$137+ Cheap flights from Seattle to Helena (SEA - HLN)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/18. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — HLN
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap flight deals from Seattle to Helena

Cheapest flights from Seattle to Helena
Explore the most affordable flight options available from Seattle to Helena. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

This Expedia deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/181:21 pm
SEA
-
HLN
Nonstop1h 38m
Alaska Airlines
Sat 2/214:36 pm
HLN
-
SEA
Nonstop1h 50m
Alaska Airlines
Deal found 1/28$137
This Travelocity deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/171:21 pm
SEA
-
HLN
Nonstop1h 38m
Alaska Airlines
Thu 2/194:36 pm
HLN
-
SEA
Nonstop1h 50m
Alaska Airlines
Deal found 1/27$187
This Alaska Airlines deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/251:47 pm
SEA
-
HLN
Nonstop1h 35m
Alaska Airlines
Sat 8/14:59 pm
HLN
-
SEA
Nonstop1h 52m
Alaska Airlines
Deal found 1/28$237
This Delta deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/275:30 am
SEA
-
HLN
1 stop5h 55m
Delta
Sun 3/15:30 am
HLN
-
SEA
1 stop5h 15m
Delta
Deal found 1/26$252
This Alaska Airlines deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/103:31 pm
SEA
-
HLN
Nonstop1h 40m
Alaska Airlines
Sat 2/144:36 pm
HLN
-
SEA
Nonstop1h 50m
Alaska Airlines
Deal found 1/26$297
This Alaska Airlines deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/271:21 pm
SEA
-
HLN
Nonstop1h 38m
Alaska Airlines
Sun 3/14:36 pm
HLN
-
SEA
Nonstop1h 50m
Alaska Airlines
Deal found 1/28$347
This Delta deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/205:30 am
SEA
-
HLN
1 stop5h 51m
Delta
Tue 3/241:02 pm
HLN
-
SEA
1 stop6h 28m
Delta
Deal found 1/29$358
This Travelocity deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/203:09 pm
SEA
-
HLN
Nonstop1h 36m
Alaska Airlines
Tue 3/246:22 pm
HLN
-
SEA
Nonstop1h 49m
Alaska Airlines
Deal found 1/29$367
This United Airlines deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/105:00 am
SEA
-
HLN
1 stop7h 41m
United Airlines
Sat 2/142:25 pm
HLN
-
SEA
1 stop7h 47m
United Airlines
Deal found 1/26$377
This Delta deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/25:00 am
SEA
-
HLN
1 stop6h 27m
Delta
Mon 2/91:10 pm
HLN
-
SEA
1 stop4h 44m
Delta
Deal found 1/26$402
This Delta deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/35:30 am
SEA
-
HLN
1 stop5h 57m
Delta
Tue 2/101:10 pm
HLN
-
SEA
1 stop6h 19m
Delta
Deal found 1/27$409

Find flight deals from Seattle to Helena

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Helena (HLN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$137
(Expedia)

Popular in

September

Cheapest in

January

Average price

$144

Good round-trip deal

$131 or less

Good one-way deal

$374 or less
Provider with most accurate pricing for Seattle/Tacoma Intl-Helena flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Helena flights.
Search Deals
From Seattle/Tacoma Intl to Helena
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($22 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals
Price to beat on a round-trip flight from Seattle/Tacoma Intl to Helena.
Search Deals
Price to beat on a one-way flight from Seattle/Tacoma Intl to Helena.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Helena that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 29, 2026.
Use the filters below to find and compare flights from Seattle to Helena that are best for you.

Fly from

Seattle

Fly to

Helena

Route

Depart

Return

Price

SeattleHelena

SEA - HLN

SEAHLN

Seattle/Tacoma Intl

Wed 2/18

1:21 pm-3:59 pm

Nonstop1h 38m

Helena

Sat 2/21

4:36 pm-5:26 pm

Nonstop1h 50m

$137

SeattleHelena

SEA - HLN

SEAHLN

Seattle/Tacoma Intl

Tue 2/17

1:21 pm-3:59 pm

Nonstop1h 38m

Helena

Thu 2/19

4:36 pm-5:26 pm

Nonstop1h 50m

$187

SeattleHelena

SEA - HLN

SEAHLN

Seattle/Tacoma Intl

Sat 7/25

1:47 pm-4:22 pm

Nonstop1h 35m

Helena

Sat 8/1

4:59 pm-5:51 pm

Nonstop1h 52m

$237

SeattleHelena

SEA - HLN

SEAHLN

Seattle/Tacoma Intl

Fri 2/27

5:30 am-12:25 pm

1 stop5h 55m

Helena

Sun 3/1

5:30 am-9:45 am

1 stop5h 15m

$252

SeattleHelena

SEA - HLN

SEAHLN

Seattle/Tacoma Intl

Tue 2/17

5:30 am-12:25 pm

1 stop5h 55m

Helena

Thu 2/19

1:10 pm-4:48 pm

1 stop4h 38m

$297

SeattleHelena

SEA - HLN

SEAHLN

Seattle/Tacoma Intl

Tue 2/10

3:31 pm-6:11 pm

Nonstop1h 40m

Helena

Sat 2/14

4:36 pm-5:26 pm

Nonstop1h 50m

$297

SeattleHelena

SEA - HLN

SEAHLN

Seattle/Tacoma Intl

Fri 2/13

1:21 pm-3:59 pm

Nonstop1h 38m

Helena

Tue 2/17

4:36 pm-5:26 pm

Nonstop1h 50m

$297

SeattleHelena

SEA - HLN

SEAHLN

Seattle/Tacoma Intl

Fri 2/27

1:21 pm-3:59 pm

Nonstop1h 38m

Helena

Sun 3/1

4:36 pm-5:26 pm

Nonstop1h 50m

$347

SeattleHelena

SEA - HLN

SEAHLN

Seattle/Tacoma Intl

Wed 7/8

1:47 pm-4:22 pm

Nonstop1h 35m

$139

SeattleHelena

SEA - HLN

SEAHLN

Seattle/Tacoma Intl

Thu 3/19

5:30 am-12:21 pm

1 stop5h 51m

$149

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

Showing 1-10 of 12 results
1
2

Compare providers for flights from Seattle to Helena

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Helena in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 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
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

What is the cheapest month to book a flight from Seattle to Helena?

Currently, November is the cheapest month in which you can book a flight from Seattle to Helena (average of $97). Flying from Seattle to Helena in March is currently the most expensive (average of $167). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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

Find hourly flight availability from Seattle to Helena. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 29, 2026.

It’s optimal to fly from Seattle to Helena in the evening. By choosing this option you can save up to 39% on the cost of your flight, compared to a flight at noon.

Reviews of airlines servicing Helena

Get insights into the airlines that provide service to Helena. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Helena. Reviews last updated January 29, 2026.
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.
Alaska Airlines
8.0
Very good
11,806 reviews

Overall

8.0

Entertainment

7.0

Food

7.1

Crew

8.5

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
Alaska Airlines
8.0
Very good
11,806 reviews
Alaska Airlines
8.0
Very good
11,806 reviews

Overall

8.0

Entertainment

7.0

Food

7.1

Crew

8.5

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Helena. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from Seattle to Helena?

    Booking a flight from Seattle/Tacoma Intl (SEA) to Helena (HLN) is your only option if you wish to fly from Seattle to Helena. On a typical day, there are 4 flights from Seattle/Tacoma Intl to Helena, all of which are around 1h 38m for a nonstop flight. You can also purchase a plane ticket from 1 airline when you book a flight from Seattle/Tacoma Intl to Helena.

  • How popular is this Seattle to Helena flight route?

    This flight path from Seattle/Tacoma Intl to Helena was viewed by 3 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Seattle to Helena?

    Alaska Airlines and Delta can get you from Seattle to Helena in just under 1h 38m. Your travel time can differ by up to 4h 17m. 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 $131, was found to be the cheapest airline from Seattle to Helena.. Alaska Airlines is priced at 51% 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: Horizon Air (90%), Qatar Airways (85%), Hawaiian Airlines( 84%).

  • What are the cheapest flights from Seattle to Helena?

    While on average a flight from Seattle to Helena is generally $316, our data shows the cheapest flight currently is $131. When looking at the most popular route, (Seattle/Tacoma Intl - Helena), you can expect to pay $227 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.

  • What is the cheapest month to book a flight from Seattle to Helena?

    Currently, November is the cheapest month in which you can book a flight from Seattle to Helena (average of $97). Flying from Seattle to Helena in March is currently the most expensive (average of $167). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Top airline flying from Seattle to Helena

Discover the top airline that operate flights from Seattle to Helena. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$131Average$247FlexibilityNo cancel feeOn-time75%

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