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Helena

$119+ Cheap flights from Seattle to Helena (SEA - HLN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/29. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — HLN
may. 4 — may. 111
dom. 5/4
dom. 5/11
1 adult, Economy
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Cheap 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 abril 29, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$268
(Alaska Airlines)

One-way from

$119
(Alaska Airlines)

Popular in

December

Cheapest in

February

Average price

$338

Good round-trip deal

$227 or less

Good one-way deal

$119 or less
Provider with most accurate pricing for Seattle/Tacoma Intl-Helena flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Helena flights.
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From Seattle/Tacoma Intl to Helena
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One-way flight from Seattle/Tacoma Intl to Helena
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Highest demand for flights based on searches. 18% potential increase in price ($67 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($17 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Price to beat on a round-trip flight from Seattle/Tacoma Intl to Helena.
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Price to beat on a one-way flight from Seattle/Tacoma Intl to Helena.
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Find 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 abril 29, 2025.

This Hawaiian Airlines deal was found by Cheapflights users on 4/28. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 5/241:00 pmSEA - HLN
Nonstop1h 31mHawaiian Airlines
mié. 5/284:11 pmHLN - SEA
Nonstop1h 45mHawaiian Airlines
Deal found 4/28$197
This Alaska Airlines deal was found by Cheapflights users on 4/28. 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.
mié. 6/2512:59 pmSEA - HLN
Nonstop1h 32mAlaska Airlines
dom. 6/294:09 pmHLN - SEA
Nonstop1h 47mAlaska Airlines
Deal found 4/28$238
This Delta deal was found by Cheapflights users on 4/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 5/245:30 amSEA - HLN
1 stop5h 51mDelta
mié. 5/281:01 pmHLN - SEA
1 stop4h 43mDelta
Deal found 4/28$248
This United Airlines deal was found by Cheapflights users on 4/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 6/22:50 pmSEA - HLN
2 stops25h 05mUnited Airlines
vie. 6/65:39 pmHLN - SEA
1 stop15h 22mUnited Airlines
Deal found 4/28$500
This United deal was found by Cheapflights users on 4/28. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 5/2412:44 pmSEA - HLN
1 stop7h 31mMultiple Airlines
mié. 5/284:11 pmHLN - SEA
Nonstop1h 45mMultiple Airlines
Deal found 4/28$533

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 abril 29, 2025.
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

sáb. 5/24

1:00 pm-3:31 pm

Nonstop1h 31m

Helena

mié. 5/28

4:11 pm-4:56 pm

Nonstop1h 45m

$197

SeattleHelena

SEA - HLN

SEAHLN

Seattle/Tacoma Intl

mié. 6/25

12:59 pm-3:31 pm

Nonstop1h 32m

Helena

dom. 6/29

4:09 pm-4:56 pm

Nonstop1h 47m

$238

SeattleHelena

SEA - HLN

SEAHLN

Seattle/Tacoma Intl

sáb. 5/24

5:30 am-12:21 pm

1 stop5h 51m

Helena

mié. 5/28

1:01 pm-4:44 pm

1 stop4h 43m

$248

SeattleHelena

SEA - HLN

SEAHLN

Seattle/Tacoma Intl

lun. 6/2

2:50 pm-4:55 pm

2 stops25h 05m

Helena

vie. 6/6

5:39 pm-8:01 am

1 stop15h 22m

$500

SeattleHelena

SEA - HLN

SEAHLN

Seattle/Tacoma Intl

sáb. 5/24

12:44 pm-9:15 pm

1 stop7h 31m

Helena

mié. 5/28

4:11 pm-4:56 pm

Nonstop1h 45m

$533

SeattleHelena

SEA - HLN

SEAHLN

Seattle/Tacoma Intl

dom. 6/29

12:59 pm-3:31 pm

Nonstop1h 32m

$119

SeattleHelena

SEA - HLN

SEAHLN

Seattle/Tacoma Intl

dom. 6/29

7:10 am-12:27 pm

1 stop4h 17m

$129

SeattleHelena

SEA - HLN

SEAHLN

Seattle/Tacoma Intl

dom. 5/25

6:25 am-2:02 pm

2 stops30h 37m

$287

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

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 April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapOairPrice 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 CheapOair to be most consistent on Cheapflights vs. CheapOair Users can find the same prices on Seattle-Helena flight deals on Cheapflights vs. CheapOair >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 CheapOair the most. CheapOair 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, February is the cheapest month in which you can book a flight from Seattle to Helena (average of $353). Flying from Seattle to Helena in July is currently the most expensive (average of $597). 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 abril 29, 2025.

It’s optimal to fly from Seattle to Helena in the afternoon. By choosing this option you can save up to 65% on the cost of your flight, compared to a flight in the morning.

Weekly flight availability from Seattle to Helena

Explore weekly flight availability from Seattle to Helena. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated abril 29, 2025.

The most flights from SEA to HLN are scheduled on a Monday (3 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (3 on average).

Rainfall in Helena by month

Plan your trip to Helena by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Helena ranges from 0.3 - 2.1 inches per month. June is typically the wettest month, when rainfall can reach 2.1 in. February is typically the driest time to visit Helena when rainfall is around 0.3 in.

Temperature in Helena by month

Plan your trip to Helena by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Helena, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 69.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 21.2 F).

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 abril 29, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Delta and United Airlines from Seattle to Helena to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,968 reviews

Comfort

7.9

Food

7.1

Entertainment

7.1

Crew

8.5

Boarding

8.2

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Alaska Airlines
8.0
Very good
9,968 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Comfort

7.9

Food

7.1

Entertainment

7.1

Crew

8.5

Boarding

8.2

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Delta
8.0
Very good
7,936 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Comfort

7.9

Food

7.1

Entertainment

7.1

Crew

8.5

Boarding

8.2

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
United Airlines
7.4
Good
8,696 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Comfort

7.9

Food

7.1

Entertainment

7.1

Crew

8.5

Boarding

8.2

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥

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 3 flights from Seattle/Tacoma Intl to Helena, all of which are around 1h 31m 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.

  • What are the cheapest airlines flying from Seattle to Helena round-trip?

    Alaska Airlines, at $268, was found to be the cheapest airline from Seattle to Helena.Alternate airlines to your destination round-trip include Delta and United Airlines. Alaska Airlines is priced at 7% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Seattle to Helena one-way?

    For one-way options, check prices for Alaska Airlines. According to our data, you can fly for as low as $119. Users have also found prices from $129 and $287 on Delta and United Airlines, respectively.

  • 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: Korean Air (87%), Hawaiian Airlines (87%), Alaska Airlines( 75%).

  • What are the cheapest flights from Seattle to Helena?

    While on average a flight from Seattle to Helena is generally $223, our data shows the cheapest flight currently is $119. When looking at the most popular route, (Seattle/Tacoma Intl - Helena), you can expect to pay $197 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, February is the cheapest month in which you can book a flight from Seattle to Helena (average of $353). Flying from Seattle to Helena in July is currently the most expensive (average of $597). 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 abril 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$157Average$264FlexibilityNo cancel feeOn-time75%

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