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Helena

$243+ Cheap flights from Reagan-National (DCA) 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 4/20. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — HLN
feb. 20 — feb. 271
vie. 2/20
vie. 2/27
1 adult, Economy
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Cheap flight deals from Reagan-National to Helena

Cheapest flights from Reagan-National to Helena
Explore the most affordable flight options available from Reagan-National to Helena. Find the lowest fares from popular airlines and budget airlines, with prices last updated on enero 21, 2026.

This Travelocity deal was found by Cheapflights users on 1/20. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 2/198:00 am
DCA
-
HLN
1 stop9h 59m
Alaska Airlines
jue. 2/264:36 pm
HLN
-
DCA
1 stop27h 23m
Alaska Airlines
Deal found 1/20$345
This United Airlines deal was found by Cheapflights users on 1/19. 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.
sáb. 1/246:30 am
DCA
-
HLN
3 stops16h 56m
United Airlines
mié. 1/286:15 am
HLN
-
DCA
1 stop6h 44m
United Airlines
Deal found 1/19$621
This United Airlines deal was found by Cheapflights users on 1/20. 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.
mié. 2/44:11 pm
DCA
-
HLN
1 stop7h 15m
United Airlines
dom. 2/86:15 am
HLN
-
DCA
1 stop6h 44m
United Airlines
Deal found 1/20$728
This Expedia deal was found by Cheapflights users on 1/20. 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.
mié. 2/48:00 am
DCA
-
HLN
1 stop12h 11m
Alaska Airlines
dom. 2/86:48 pm
HLN
-
DCA
2 stops24h 12m
Alaska Airlines
Deal found 1/20$770

Find flight deals from Reagan-National to Helena

Discover tips and strategies to find the most affordable flight options for your journey from Reagan-National (DCA) 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 enero 21, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$345
(Travelocity)

One-way from

$243
(United Airlines)

Popular in

November

Cheapest in

April

Average price

$528
Provider with most accurate pricing for Washington, D.C. Reagan-National-Helena flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. Reagan-National-Helena flights.
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From Washington, D.C. Reagan-National to Helena
Search Deals
One-way flight from Washington, D.C. Reagan-National to Helena
Search Deals
Highest demand for flights based on searches. 34% potential increase in price ($385 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 9% potential price decrease ($62 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Reagan-National 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 enero 21, 2026.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Helena that are best for you.

Fly from

Reagan-National

Fly to

Helena

Route

Depart

Return

Price

Washington, D.C.Helena

DCA - HLN

DCAHLN

Washington, D.C. Reagan-National

jue. 2/19

8:00 am-3:59 pm

1 stop9h 59m

Helena

jue. 2/26

4:36 pm-9:59 pm

1 stop27h 23m

$345

Washington, D.C.Helena

DCA - HLN

DCAHLN

Washington, D.C. Reagan-National

mié. 2/4

4:11 pm-9:26 pm

1 stop7h 15m

Helena

dom. 2/8

6:15 am-2:59 pm

1 stop6h 44m

$728

Washington, D.C.Helena

DCA - HLN

DCAHLN

Washington, D.C. Reagan-National

mié. 2/4

3:24 pm-6:11 pm

2 stops28h 47m

Helena

dom. 2/8

6:48 pm-7:00 am

2 stops34h 12m

$728

Washington, D.C.Helena

DCA - HLN

DCAHLN

Washington, D.C. Reagan-National

vie. 6/26

5:00 pm-10:34 pm

1 stop7h 34m

Helena

dom. 6/28

5:45 am-4:21 pm

1 stop8h 36m

$1,086

Washington, D.C.Helena

DCA - HLN

DCAHLN

Washington, D.C. Reagan-National

vie. 6/26

11:30 am-8:59 pm

2 stops11h 29m

Helena

dom. 6/28

7:00 am-4:52 pm

2 stops7h 52m

$1,416

Washington, D.C.Helena

DCA - HLN

DCAHLN

Washington, D.C. Reagan-National

lun. 4/20

4:11 pm-9:33 pm

1 stop7h 22m

$243

Washington, D.C.Helena

DCA - HLN

DCAHLN

Washington, D.C. Reagan-National

lun. 4/20

8:59 am-5:45 pm

2 stops34h 46m

$268

Washington, D.C.Helena

DCA - HLN

DCAHLN

Washington, D.C. Reagan-National

jue. 2/26

12:59 pm-10:27 pm

2 stops11h 28m

$295

Washington, D.C.Helena

DCA - HLN

DCAHLN

Washington, D.C. Reagan-National

jue. 2/26

8:00 am-3:59 pm

1 stop9h 59m

$382

Washington, D.C.Helena

DCA - HLN

DCAHLN

Washington, D.C. Reagan-National

lun. 4/20

8:59 am-5:45 pm

3 stops34h 46m

$591

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

Compare providers for flights from Reagan-National 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 Reagan-National to Helena in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*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 Washington, D.C. Reagan-National Airport-Helena flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Reagan-National Airport-Helena flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Reagan-National Airport-Helena flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C. Reagan-National Airport-Helena flights, Cheapflights users trust Expedia the most. Expedia 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 Washington, D.C. Reagan-National Airport-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 Reagan-National to Helena

Have a flexible travel schedule? Discover the best time to fly to Helena from Reagan-National 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. Reagan-National Airport to Helena

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

Currently, June is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Helena (average of $176). Flying from Washington, D.C. Reagan-National Airport to Helena in March is currently the most expensive (average of $361). 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.

Related info for your journey

Find useful and relevant information for your journey from Reagan-National 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. Reagan-National?

    If you book a flight to Helena from Washington, D.C. Reagan-National, you will be flying to Helena, which is the city’s only airport. Helena (HLN) is located 2.7 mi from the center of Helena. There are 0 flights from Washington, D.C. Reagan-National to Helena per day from 0 different airlines.

  • How long is the flight from Washington, D.C. Reagan-National Airport to Helena?

    There are many flights that can get you from Washington, D.C. Reagan-National Airport to Helena in 7h 15m. Fly via Alaska Airlines or United Airlines to get the fastest option. Airlines will cover a distance of 1835 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • Can I find deals for flights from Reagan-National to Helena that include hotel bookings?

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

  • How can I find direct flights from Reagan-National to Helena?

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

  • Can I find deals for business class flights from Reagan-National to Helena?

    Yes. Cheapflights offers flight deals from Reagan-National 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. Reagan-National Airport to Helena?

    Currently, June is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Helena (average of $176). Flying from Washington, D.C. Reagan-National Airport to Helena in March is currently the most expensive (average of $361). 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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