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$129+ Cheap flights from Helena (HLN) to Washington

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 8/26. Fares are subject to change and may not be available on all flights or dates of travel.
HLN — SEA
Aug 29 — Sep 51
Sat 8/29
Sat 9/5
1 adult, Economy
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Cheap flight deals from Helena to Washington

Cheapest flights from Helena to Washington
Explore the most affordable flight options available from Helena to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2026.

This Alaska Airlines deal was found by Cheapflights users on 7/29. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/265:18 pm
HLN
-
SEA
Nonstop1h 56m
Alaska Airlines
Wed 9/302:05 pm
SEA
-
HLN
Nonstop1h 36m
Alaska Airlines
Deal found 7/29$197
This Delta deal was found by Cheapflights users on 7/29. 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.
Sat 9/2612:57 pm
HLN
-
SEA
1 stop6h 58m
Delta
Wed 9/305:45 am
SEA
-
HLN
1 stop5h 32m
Delta
Deal found 7/29$207
This Expedia deal was found by Cheapflights users on 7/26. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/65:11 pm
HLN
-
SEA
Nonstop1h 57m
Alaska Airlines
Thu 9/172:05 pm
SEA
-
HLN
Nonstop1h 36m
Alaska Airlines
Deal found 7/26$217
This Delta deal was found by Cheapflights users on 7/27. 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.
Sat 10/101:08 pm
HLN
-
SEA
1 stop6h 54m
Delta
Tue 10/135:25 am
SEA
-
HLN
1 stop6h 03m
Delta
Deal found 7/27$227
This Delta deal was found by Cheapflights users on 7/28. 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.
Sat 9/197:15 am
HLN
-
SEA
1 stop6h 40m
Delta
Mon 9/285:45 am
SEA
-
HLN
1 stop5h 32m
Delta
Deal found 7/28$237
This Delta deal was found by Cheapflights users on 7/26. 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 10/91:08 pm
HLN
-
SEA
1 stop6h 44m
Delta
Sun 10/115:25 am
SEA
-
HLN
1 stop6h 03m
Delta
Deal found 7/26$247
This Priceline deal was found by Cheapflights users on 7/27. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/105:26 pm
HLN
-
SEA
Nonstop1h 52m
Alaska Airlines
Sat 10/172:14 pm
SEA
-
HLN
Nonstop1h 35m
Alaska Airlines
Deal found 7/27$257
This Booking.com deal was found by Cheapflights users on 7/29. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/265:18 pm
HLN
-
SEA
Nonstop1h 56m
Alaska Airlines
Sun 9/272:05 pm
SEA
-
HLN
Nonstop1h 36m
Alaska Airlines
Deal found 7/29$269
This Delta deal was found by Cheapflights users on 7/29. 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.
Sat 9/2612:57 pm
HLN
-
SEA
1 stop6h 58m
Delta
Sun 9/275:45 am
SEA
-
HLN
1 stop5h 32m
Delta
Deal found 7/29$278
This Expedia deal was found by Cheapflights users on 7/27. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/85:26 pm
HLN
-
SEA
Nonstop1h 52m
Alaska Airlines
Sun 10/112:14 pm
SEA
-
HLN
Nonstop1h 35m
Alaska Airlines
Deal found 7/27$282
This Delta deal was found by Cheapflights users on 7/30. 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.
Sun 9/65:40 am
HLN
-
SEA
1 stop4h 17m
Delta
Sat 9/125:45 am
SEA
-
HLN
1 stop5h 32m
Delta
Deal found 7/30$288
This Alaska Airlines deal was found by Cheapflights users on 7/29. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/144:41 pm
HLN
-
PDX
1 stop6h 14m
Alaska Airlines
Tue 11/175:40 pm
PDX
-
HLN
1 stop21h 24m
Alaska Airlines
Deal found 7/29$343

Find flight deals from Helena to Washington

Keep the following information in mind while searching for Helena to Washington flight deals. Data was last updated July 30, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$197
(Alaska Airlines)

One-way from

$129
(Priceline)

Popular in

June

Cheapest in

February

Average price

$392

Good round-trip deal

$252 or less

Good one-way deal

$300 or less
Provider with most accurate pricing for Helena-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Helena-Seattle/Tacoma Intl flights.
Search Deals
From Helena to Washington
Search Deals
One-way flight from Helena to Washington
Search Deals
Highest demand for flights based on searches. 29% potential increase in price ($101 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals
Price to beat on a round-trip flight from Helena to Washington.
Search Deals
Price to beat on a one-way flight from Helena to Washington.
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Helena to Washington 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 30, 2026.
Use the filters below to find and compare flights from Helena to Washington that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

HelenaSeattle

HLN - SEA

HLNSEA

Helena

Wed 12/9

4:08 pm-4:55 pm

Nonstop1h 47m

Seattle/Tacoma Intl

Sat 12/12

12:59 pm-3:31 pm

Nonstop1h 32m

$197

HelenaSeattle

HLN - SEA

HLNSEA

Helena

Sat 9/26

12:57 pm-6:55 pm

1 stop6h 58m

Seattle/Tacoma Intl

Wed 9/30

5:45 am-12:17 pm

1 stop5h 32m

$207

HelenaSeattle

HLN - SEA

HLNSEA

Helena

Fri 9/25

5:18 pm-6:14 pm

Nonstop1h 56m

Seattle/Tacoma Intl

Sat 9/26

2:05 pm-4:41 pm

Nonstop1h 36m

$207

HelenaSeattle

HLN - SEA

HLNSEA

Helena

Sat 9/26

5:18 pm-6:14 pm

Nonstop1h 56m

Seattle/Tacoma Intl

Mon 9/28

2:05 pm-4:41 pm

Nonstop1h 36m

$207

HelenaSeattle

HLN - SEA

HLNSEA

Helena

Sat 9/19

7:15 am-12:55 pm

1 stop6h 40m

Seattle/Tacoma Intl

Mon 9/28

5:45 am-12:17 pm

1 stop5h 32m

$237

HelenaSeattle

HLN - SEA

HLNSEA

Helena

Fri 10/9

1:08 pm-6:52 pm

1 stop6h 44m

Seattle/Tacoma Intl

Mon 10/12

5:25 am-12:28 pm

1 stop6h 03m

$247

HelenaSeattle

HLN - SEA

HLNSEA

Helena

Fri 10/9

1:08 pm-6:52 pm

1 stop6h 44m

Seattle/Tacoma Intl

Sun 10/11

5:25 am-12:28 pm

1 stop6h 03m

$247

HelenaSeattle

HLN - SEA

HLNSEA

Helena

Sat 10/24

5:26 pm-6:18 pm

Nonstop1h 52m

Seattle/Tacoma Intl

Sat 10/31

2:14 pm-4:49 pm

Nonstop1h 35m

$257

HelenaSeattle

HLN - SEA

HLNSEA

Helena

Fri 10/9

5:26 pm-6:18 pm

Nonstop1h 52m

Seattle/Tacoma Intl

Mon 10/12

2:14 pm-4:49 pm

Nonstop1h 35m

$282

HelenaSeattle

HLN - SEA

HLNSEA

Helena

Sun 11/1

4:41 pm-5:33 pm

Nonstop1h 52m

Seattle/Tacoma Intl

Tue 11/3

1:28 pm-4:04 pm

Nonstop1h 36m

$327

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Showing 1-10 of 48 resultsSorted by cheapest first
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Best time to book a flight from Helena to Washington

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

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

Currently, February is the cheapest month in which you can book a flight from Helena to State of Washington (average of $147). Flying from Helena to State of Washington in June is currently the most expensive (average of $438). 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 HLN to WA?

Find hourly flight availability from Helena to Washington. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 30, 2026.

When flying from Helena to State of Washington, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 58% versus a flight at noon.

How much does it cost to fly round-trip from Helena to State of Washington?

Airfare is below average for this route at the moment.
Helena to State of Washington flights typically cost between $252 and $338 in September.
The cheapest round-trip price found within the last 5 days was $197 on Alaska Airlines (Sep 26-Sep 30).

Reviews of airlines servicing Washington

Get insights into the airlines that provide service to Washington. 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 Washington. Reviews last updated July 30, 2026.
Peruse reviews from past customers who have flown with Alaska Airlines from Helena to Washington to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
7.9
Good
12,734 reviews

Boarding

8.1

Food

7.0

Overall

7.9

Crew

8.5

Entertainment

7.0

Comfort

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2026

RDU - SEA

There was almost a 2 hour delay after arriving before our next flight. Also my husband needed a wheelchair and it seemed hard to get help.
Alaska Airlines
7.9
Good
12,734 reviews
Alaska Airlines
7.9
Good
12,734 reviews

Boarding

8.1

Food

7.0

Overall

7.9

Crew

8.5

Entertainment

7.0

Comfort

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2026

RDU - SEA

There was almost a 2 hour delay after arriving before our next flight. Also my husband needed a wheelchair and it seemed hard to get help.

Related info for your journey

Find useful and relevant information for your journey from Helena to Washington. 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 from for flights from Helena to Washington?

    Helena (HLN) is the airport you will fly out of if you book a flight from Helena to Washington. It is only a 2.7 mi journey to Helena (HLN) from Helena’s city center.

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

    Within the past month, 2 users have taken a look at flights from Helena to Washington.

  • How long is the flight from Helena to State of Washington?

    Alaska Airlines and Delta can get you from Helena to State of Washington in just under 1h 47m. Your travel time can differ by up to 5h 11m. Helena and State of Washington are separated by a distance of 489 mi. This flight may include one or multiple stops.

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

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

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

    Consider Alaska Airlines (68%), Horizon Air (68%) or Qatar Airways (61%) when booking your flight. These represent the most reliable airlines when flying from Helena to State of Washington.

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

    Looking at all options, your cheapest flight can be booked for $165. While the most popular route (Helena - Seattle/Tacoma Intl) can be booked for $207 on average, our data indicates $344 when flying from Helena to State of Washington.

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

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

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

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

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

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

    Currently, February is the cheapest month in which you can book a flight from Helena to State of Washington (average of $147). Flying from Helena to State of Washington in June is currently the most expensive (average of $438). 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Helena to Washington

Discover the top airline that operate flights from Helena to Washington. 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 30, 2026.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$137Average$209FlexibilityNo cancel feeOn-time75%

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