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Helena

$89+ 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 10/18. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — HLN
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
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 July 3, 2025.

Round-trip from

$217
(Hawaiian Airlines)

One-way from

$89
(Hawaiian Airlines)

Popular in

December

Cheapest in

February

Average price

$316

Good round-trip deal

$197 or less

Good one-way deal

$219 or less
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. 14% potential increase in price ($52 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($15 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 3, 2025.

This Alaska Airlines deal was found by Cheapflights users on 7/2. 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.
Wed 10/153:07 pmSEA - HLN
Nonstop1h 34mAlaska Airlines
Tue 10/216:18 pmHLN - SEA
Nonstop1h 52mAlaska Airlines
Deal found 7/2$177
This Delta deal was found by Cheapflights users on 7/1. 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.
Sat 10/185:45 amSEA - HLN
1 stop5h 39mDelta
Tue 10/2112:50 pmHLN - SEA
1 stop5h 08mDelta
Deal found 7/1$258
This United Airlines deal was found by Cheapflights users on 7/2. 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.
Sat 10/185:00 amSEA - HLN
1 stop7h 14mUnited Airlines
Tue 10/212:44 pmHLN - SEA
1 stop7h 50mUnited Airlines
Deal found 7/2$277

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 July 3, 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

Fri 8/22

12:46 pm-3:21 pm

Nonstop1h 35m

Helena

Thu 8/28

4:02 pm-4:50 pm

Nonstop1h 48m

$217

SeattleHelena

SEA - HLN

SEAHLN

Seattle/Tacoma Intl

Wed 7/30

12:59 pm-3:31 pm

Nonstop1h 32m

Helena

Wed 8/6

4:08 pm-4:55 pm

Nonstop1h 47m

$238

SeattleHelena

SEA - HLN

SEAHLN

Seattle/Tacoma Intl

Wed 7/30

7:10 am-12:20 pm

1 stop4h 10m

Helena

Wed 8/6

1:00 pm-4:41 pm

1 stop4h 41m

$357

SeattleHelena

SEA - HLN

SEAHLN

Seattle/Tacoma Intl

Thu 8/21

7:00 pm-4:04 pm

1 stop20h 04m

Helena

Mon 8/25

5:20 pm-10:59 pm

1 stop6h 39m

$411

SeattleHelena

SEA - HLN

SEAHLN

Seattle/Tacoma Intl

Thu 8/21

12:43 pm-9:11 pm

1 stop7h 28m

Helena

Mon 8/25

4:02 pm-4:50 pm

Nonstop1h 48m

$553

SeattleHelena

SEA - HLN

SEAHLN

Seattle/Tacoma Intl

Wed 8/13

5:30 am-12:20 pm

1 stop5h 50m

$149

SeattleHelena

SEA - HLN

SEAHLN

Seattle/Tacoma Intl

Wed 8/13

12:59 pm-3:31 pm

Nonstop1h 32m

$244

SeattleHelena

SEA - HLN

SEAHLN

Seattle/Tacoma Intl

Wed 8/13

6:45 am-9:15 pm

2 stops13h 30m

$319

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

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 $545). 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 July 3, 2025.

It’s optimal to fly from Seattle to Helena at noon. By choosing this option you can save up to 21% 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 July 3, 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).

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 July 3, 2025.
See what other customers who have flown with Alaska Airlines, Delta, and Hawaiian 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
10,000 reviews

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

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
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

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
7,982 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Hawaiian Airlines
7.8
Good
2,545 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

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
8,861 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

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 32m 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?

    Hawaiian Airlines, at $217, was found to be the cheapest airline from Seattle to Helena.Alternate airlines to your destination round-trip include Alaska Airlines and Delta. Hawaiian Airlines is priced at 29% 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 Hawaiian Airlines. According to our data, you can fly for as low as $89. Users have also found prices from $139 and $149 on United Airlines and Delta, 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: SkyWest Airlines (85%), Qatar Airways (85%), Alaska Airlines( 80%).

  • What are the cheapest flights from Seattle to Helena?

    While on average a flight from Seattle to Helena is generally $261, our data shows the cheapest flight currently is $197. When looking at the most popular route, (Seattle/Tacoma Intl - Helena), you can expect to pay $177 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 $545). 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 July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$157Average$268FlexibilityNo cancel feeOn-time75%

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