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Helena

$142+ Cheap flights from Washington to Helena (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 5/20. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — HLN
Jan 27 — Feb 31
Tue 1/27
Tue 2/3
1 adult, Economy
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Cheap flight deals from Washington to Helena

Cheapest flights from Washington to Helena
Explore the most affordable flight options available from Washington to Helena. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 28, 2025.

This Alaska Airlines deal was found by Cheapflights users on 12/26. 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.
Sat 12/273:17 pmSEA - HLN
Nonstop1h 38mAlaska Airlines
Sun 12/286:32 pmHLN - SEA
Nonstop1h 55mAlaska Airlines
Deal found 12/26$708
This United Airlines deal was found by Cheapflights users on 12/26. 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.
Sat 12/279:06 amSEA - HLN
2 stops11h 25mUnited Airlines
Sun 12/286:10 amHLN - SEA
1 stop18h 02mUnited Airlines
Deal found 12/26$1,576

Find flight deals from Washington to Helena

Keep the following information in mind while searching for Washington to Helena flight deals. Data was last updated December 28, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$157
(Alaska Airlines)

One-way from

$142
(Expedia)

Popular in

March

Cheapest in

January

Average price

$295

Good round-trip deal

$327 or less

Good one-way deal

$284 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 Washington to Helena
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One-way flight from Washington to Helena
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($33 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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Price to beat on a round-trip flight from Washington to Helena.
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Price to beat on a one-way flight from Washington to Helena.
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington 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 December 28, 2025.
Use the filters below to find and compare flights from Washington to Helena that are best for you.

Fly from

Washington

Fly to

Helena

Route

Depart

Return

Price

SeattleHelena

SEA - HLN

SEAHLN

Seattle/Tacoma Intl

Wed 1/21

3:31 pm-6:11 pm

Nonstop1h 40m

Helena

Sat 1/24

6:48 pm-7:47 pm

Nonstop1h 59m

$157

SeattleHelena

SEA - HLN

SEAHLN

Seattle/Tacoma Intl

Sat 1/24

5:00 am-12:27 pm

1 stop6h 27m

Helena

Sat 1/31

5:30 am-9:17 am

1 stop4h 47m

$177

SeattleHelena

SEA - HLN

SEAHLN

Seattle/Tacoma Intl

Fri 1/23

3:31 pm-6:11 pm

Nonstop1h 40m

Helena

Sun 1/25

6:48 pm-7:47 pm

Nonstop1h 59m

$177

SeattleHelena

SEA - HLN

SEAHLN

Seattle/Tacoma Intl

Fri 1/23

5:00 am-12:27 pm

1 stop6h 27m

Helena

Sun 1/25

5:30 am-9:17 am

1 stop4h 47m

$197

SeattleHelena

SEA - HLN

SEAHLN

Seattle/Tacoma Intl

Sat 4/4

3:09 pm-5:45 pm

Nonstop1h 36m

Helena

Wed 4/8

6:22 pm-7:11 pm

Nonstop1h 49m

$208

PortlandHelena

PDX - HLN

PDXHLN

Portland

Sat 2/7

9:10 am-6:11 pm

1 stop8h 01m

Helena

Tue 2/10

6:48 pm-9:29 am

1 stop15h 41m

$245

PascoHelena

PSC - HLN

PSCHLN

Pasco Tri Cities

Sat 2/28

8:25 am-3:59 pm

1 stop6h 34m

Helena

Wed 3/4

4:36 pm-8:55 pm

1 stop5h 19m

$245

PortlandHelena

PDX - HLN

PDXHLN

Portland

Thu 1/22

1:38 pm-6:11 pm

1 stop3h 33m

Helena

Thu 1/29

6:48 pm-9:29 am

1 stop15h 41m

$264

PortlandHelena

PDX - HLN

PDXHLN

Portland

Thu 1/22

9:30 pm-6:11 pm

1 stop19h 41m

Helena

Sun 1/25

6:48 pm-9:29 am

1 stop15h 41m

$264

SeattleHelena

SEA - HLN

SEAHLN

Seattle/Tacoma Intl

Wed 1/21

12:25 pm-9:26 pm

1 stop8h 01m

Helena

Sat 1/24

2:27 pm-9:15 pm

1 stop7h 48m

$277

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/26

Showing 1-10 of 31 results
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Best time to book a flight from Washington to Helena

Have a flexible travel schedule? Discover the best time to fly to Helena from Washington 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 Washington to Helena

What is the cheapest month to book a flight from State of Washington to Helena?

Currently, January is the cheapest month in which you can book a flight from State of Washington to Helena (average of $97). Flying from State of Washington 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 WA to HLN?

Find hourly flight availability from Washington 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 December 28, 2025.

It’s optimal to fly from State of Washington to Helena in the afternoon. By choosing this option you can save up to 29% on the cost of your flight, compared to a flight in the morning.

Weekly flight availability from State of Washington to Helena

Explore weekly flight availability from Washington 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 December 28, 2025.

The most flights from USWA to HLN are scheduled on a Monday (4 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (4 on average).

Related info for your journey

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

  • What airport do you fly into for flights to Helena from Washington?

    For a flight from Washington to Helena, you will be flying into Helena. Helena (HLN) is just 2.7 mi from the center of the city.

  • How popular is this State of Washington to Helena flight route?

    This flight path from Washington 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 State of Washington to Helena?

    Alaska Airlines and Delta can get you from State of Washington to Helena in just under 1h 40m. Your travel time can differ by up to 4h 47m. State of Washington and Helena are separated by a distance of 489 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the most popular routes from State of Washington to Helena?

    Most travelers choose Seattle/Tacoma Intl - Helena, Portland - Helena or Pasco Tri Cities - Helena when deciding on the best route from State of Washington to Helena.

  • What are the most reliable airlines from State of Washington to Helena?

    No one likes to see their flight delayed. When booking a flight from State of Washington to Helena consider choosing Horizon Air (90%), Korean Air (90%) or Qatar Airways (86%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from State of Washington to Helena?

    On average you can expect to pay $411 for a flight from State of Washington to Helena. The cheapest flight overall is $258 while the most popular route, (Seattle/Tacoma Intl - Helena) is currently priced at $177.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Washington 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 State of Washington to Helena?

    Currently, January is the cheapest month in which you can book a flight from State of Washington to Helena (average of $97). Flying from State of Washington 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 Washington to Helena

Discover the top airline that operate flights from Washington 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 December 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$157Average$238FlexibilityNo cancel feeOn-time75%

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