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Helena

$250+ Cheap flights from Washington, D.C. (WAS) 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 10/31. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — HLN
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheap flight deals from Washington, D.C. to Helena

Discover tips and strategies to find the most affordable flight options for your journey from Washington, D.C. (WAS) 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 August 14, 2025.

Round-trip from

$430
(Alaska Airlines)

One-way from

$250
(Delta)

Popular in

November

Cheapest in

April

Average price

$778
From Washington, D.C. (WAS) to Helena
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One-way flight from Washington, D.C. (WAS) to Helena
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Highest demand for flights based on searches. 1% potential increase in price ($9 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($41 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Washington, D.C. to Helena

Cheapest flights from Washington, D.C. to Helena
Explore the most affordable flight options available from Washington, D.C. to Helena. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

This Alaska Airlines deal was found by Cheapflights users on 8/14. 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 10/176:12 pmBWI - HLN
1 stop25h 29mAlaska Airlines
Tue 10/216:18 pmHLN - BWI
1 stop9h 54mAlaska Airlines
Deal found 8/14$450
This Delta deal was found by Cheapflights users on 8/13. 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 9/67:30 amIAD - HLN
1 stop6h 50mDelta
Sat 9/131:00 pmHLN - IAD
2 stops15h 01mDelta
Deal found 8/13$462
This Alaska Airlines deal was found by Cheapflights users on 8/11. 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 9/67:00 amIAD - HLN
1 stop10h 21mAlaska Airlines
Sat 9/134:02 pmHLN - IAD
1 stop13h 31mAlaska Airlines
Deal found 8/11$475
This Alaska Airlines deal was found by Cheapflights users on 8/12. 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 10/176:25 amIAD - HLN
1 stop13h 16mAlaska Airlines
Tue 10/216:18 pmHLN - IAD
1 stop28h 05mAlaska Airlines
Deal found 8/12$482
This United Airlines deal was found by Cheapflights users on 8/13. 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 10/1810:10 amBWI - HLN
1 stop8h 30mUnited Airlines
Sat 10/252:00 pmHLN - BWI
1 stop7h 18mUnited Airlines
Deal found 8/13$525
This Delta deal was found by Cheapflights users on 8/13. 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 10/187:15 amBWI - HLN
1 stop7h 05mDelta
Sat 10/255:45 amHLN - BWI
2 stops9h 32mDelta
Deal found 8/13$540
This United Airlines deal was found by Cheapflights users on 8/12. 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 9/208:30 amBWI - HLN
1 stop7h 00mUnited Airlines
Wed 9/242:30 pmHLN - BWI
1 stop6h 47mUnited Airlines
Deal found 8/12$549
This United Airlines deal was found by Cheapflights users on 8/13. 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 9/64:21 pmBWI - HLN
1 stop7h 53mUnited Airlines
Sat 9/132:30 pmHLN - BWI
1 stop6h 47mUnited Airlines
Deal found 8/13$551
This Alaska Airlines deal was found by Cheapflights users on 8/12. 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 9/26:09 pmIAD - HLN
1 stop23h 12mAlaska Airlines
Thu 9/184:02 pmHLN - IAD
1 stop13h 31mAlaska Airlines
Deal found 8/12$564
This Delta deal was found by Cheapflights users on 8/12. 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 10/177:15 amBWI - HLN
1 stop7h 05mDelta
Tue 10/211:00 pmHLN - BWI
2 stops9h 41mDelta
Deal found 8/12$573
This United Airlines deal was found by Cheapflights users on 8/12. 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 8/305:10 pmIAD - HLN
2 stops22h 20mUnited Airlines
Sat 9/65:20 pmHLN - IAD
1 stop10h 02mUnited Airlines
Deal found 8/12$591
This Alaska Airlines deal was found by Cheapflights users on 8/12. 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 10/178:00 amDCA - HLN
1 stop11h 41mAlaska Airlines
Tue 10/216:18 pmHLN - DCA
2 stops19h 45mAlaska Airlines
Deal found 8/12$692

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington, D.C. 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 August 14, 2025.
Use the filters below to find and compare flights from Washington, D.C. to Helena that are best for you.

Fly from

Washington, D.C.

Fly to

Helena

Route

Depart

Return

Price

Washington, D.C.Helena

IAD - HLN

IADHLN

Washington, D.C. Dulles Intl

Sat 9/13

6:09 pm-3:21 pm

1 stop23h 12m

Helena

Sat 9/20

4:02 pm-7:33 am

1 stop13h 31m

$430

Washington, D.C.Helena

IAD - HLN

IADHLN

Washington, D.C. Dulles Intl

Sat 9/13

12:35 pm-10:14 pm

2 stops11h 39m

Helena

Sat 9/20

1:00 pm-11:33 pm

1 stop8h 33m

$436

BaltimoreHelena

BWI - HLN

BWIHLN

Baltimore/Washington

Fri 10/17

6:12 pm-5:41 pm

1 stop25h 29m

Helena

Tue 10/21

6:18 pm-6:12 am

1 stop9h 54m

$450

Washington, D.C.Helena

IAD - HLN

IADHLN

Washington, D.C. Dulles Intl

Sat 9/6

7:30 am-12:20 pm

1 stop6h 50m

Helena

Sat 9/13

1:00 pm-6:01 am

2 stops15h 01m

$462

Washington, D.C.Helena

IAD - HLN

IADHLN

Washington, D.C. Dulles Intl

Fri 10/17

6:25 am-5:41 pm

1 stop13h 16m

Helena

Tue 10/21

6:18 pm-12:23 am

1 stop28h 05m

$462

Washington, D.C.Helena

IAD - HLN

IADHLN

Washington, D.C. Dulles Intl

Sat 9/6

7:00 am-3:21 pm

1 stop10h 21m

Helena

Sat 9/13

4:02 pm-7:33 am

1 stop13h 31m

$475

BaltimoreHelena

BWI - HLN

BWIHLN

Baltimore/Washington

Sat 10/18

10:10 am-4:40 pm

1 stop8h 30m

Helena

Sat 10/25

2:00 pm-11:18 pm

1 stop7h 18m

$525

Washington, D.C.Helena

IAD - HLN

IADHLN

Washington, D.C. Dulles Intl

Mon 1/19

7:15 am-12:27 pm

1 stop7h 12m

Helena

Mon 1/26

12:50 pm-11:50 pm

1 stop9h 00m

$539

BaltimoreHelena

BWI - HLN

BWIHLN

Baltimore/Washington

Sat 10/18

7:15 am-12:20 pm

1 stop7h 05m

Helena

Sat 10/25

5:45 am-5:17 pm

2 stops9h 32m

$540

BaltimoreHelena

BWI - HLN

BWIHLN

Baltimore/Washington

Sat 9/20

8:30 am-1:30 pm

1 stop7h 00m

Helena

Wed 9/24

2:30 pm-11:17 pm

1 stop6h 47m

$549

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/13

Showing 1-10 of 20 results
1
2

Best time to book a flight from Washington, D.C. to Helena

Have a flexible travel schedule? Discover the best time to fly to Helena from Washington, D.C. 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, D.C. to Helena

What is the cheapest month to book a flight from Washington, D.C. to Helena?

Currently, February is the cheapest month in which you can book a flight from Washington, D.C. to Helena (average of $353). Flying from Washington, D.C. to Helena in May is currently the most expensive (average of $517). 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.

How much does it cost to fly round-trip from Washington, D.C. to Helena?

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 August 14, 2025.
Read through reviews of airlines operating flights from Washington, D.C. to Helena, such as Delta and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,980 reviews

Food

7.3

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,980 reviews
Delta
8.0
Very good
7,980 reviews

Food

7.3

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,916 reviews
Delta
8.0
Very good
7,980 reviews

Food

7.3

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. 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, D.C.?

    For a flight from Washington, D.C. to Helena, you will be flying into Helena. Helena (HLN) is just 2.7 mi from the center of the city. Helena is the only Helena airport and it handles 0 inbound flights from Washington, D.C. per day. 1 airline has flights to Helena from Washington, D.C. on a regular basis.

  • What are the cheapest airlines to fly from Washington, D.C. to Helena one-way?

    One-way options have recently been found by users for as low as $250 on Delta. Other airlines that offer cheap prices include Alaska Airlines from $252 and United Airlines from $302 one-way.

  • What are the most popular routes from Washington, D.C. to Helena?

    The most popular flight routes from Washington, D.C. to Helena are Washington, D.C. Dulles Intl - Helena, Baltimore/Washington - Helena and Washington, D.C. Reagan-National - Helena.

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

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

  • How can I find direct flights from Washington, D.C. to Helena?

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

  • Can I find deals for business class flights from Washington, D.C. to Helena?

    Yes. Cheapflights offers flight deals from Washington, D.C. 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 Washington, D.C. to Helena?

    Currently, February is the cheapest month in which you can book a flight from Washington, D.C. to Helena (average of $353). Flying from Washington, D.C. to Helena in May is currently the most expensive (average of $517). 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

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Top airline flying from Washington, D.C. to Helena

Discover the top airline that operate flights from Washington, D.C. 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 August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$412Average$698FlexibilityNo cancel feeOn-time69%

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