$185 Cheap Flights from Washington (DCA) to Helena (HLN)

View $185 flight on Tue, Sep 15, 2026Opens in a new window

Popular airlines from Ronald Reagan Washington National Airport (DCA) to Helena, MT (HLN-Helena Regional)

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Cheap Flights from Washington to Helena (DCA-HLN)

Prices were available within the past 7 days and start at $185 for one-way flights and $472 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Tue, Sep 15 - Wed, Sep 30
DCA
Washington
HLN
Helena
$472 Roundtrip, found 5 days ago
$472
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Tue, Sep 15 from Washington to Helena, returning Wed, Sep 30, priced at $472 found 5 days ago
Alaska Airlines
Wed, Jun 3 - Tue, Jun 9
DCA
Washington
HLN
Helena
$483 Roundtrip, found 2 days ago
$483
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Wed, Jun 3 from Washington to Helena, returning Tue, Jun 9, priced at $483 found 2 days ago
Alaska Airlines
Wed, Sep 16 - Tue, Sep 29
DCA
Washington
HLN
Helena
$492 Roundtrip, found 5 days ago
$492
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Wed, Sep 16 from Washington to Helena, returning Tue, Sep 29, priced at $492 found 5 days ago
Alaska Airlines
Tue, May 5 - Tue, May 12
DCA
Washington
HLN
Helena
$516 Roundtrip, found 2 days ago
$516
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Tue, May 5 from Washington to Helena, returning Tue, May 12, priced at $516 found 2 days ago
Alaska Airlines
Wed, Sep 16 - Wed, Sep 30
DCA
Washington
HLN
Helena
$526 Roundtrip, found 5 days ago
$526
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Wed, Sep 16 from Washington to Helena, returning Wed, Sep 30, priced at $526 found 5 days ago
Alaska Airlines
Tue, Sep 15 - Wed, Sep 30
DCA
Washington
HLN
Helena
$528 Roundtrip, found 5 days ago
$528
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Tue, Sep 15 from Washington to Helena, returning Wed, Sep 30, priced at $528 found 5 days ago
Alaska Airlines
Tue, Sep 15 - Wed, Sep 30
DCA
Washington
HLN
Helena
$533 Roundtrip, found 5 days ago
$533
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Tue, Sep 15 from Washington to Helena, returning Wed, Sep 30, priced at $533 found 5 days ago
Alaska Airlines
Mon, Jun 1 - Tue, Jun 9
DCA
Washington
HLN
Helena
$539 Roundtrip, found 1 day ago
$539
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Mon, Jun 1 from Washington to Helena, returning Tue, Jun 9, priced at $539 found 1 day ago
Alaska Airlines
Wed, Sep 16 - Tue, Sep 29
DCA
Washington
HLN
Helena
$545 Roundtrip, found 5 days ago
$545
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Wed, Sep 16 from Washington to Helena, returning Tue, Sep 29, priced at $545 found 5 days ago
Alaska Airlines
Wed, Sep 16 - Tue, Sep 29
DCA
Washington
HLN
Helena
$546 Roundtrip, found 5 days ago
$546
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Wed, Sep 16 from Washington to Helena, returning Tue, Sep 29, priced at $546 found 5 days ago

Frequently asked questions

How much does a flight from Washington, DC (DCA-Ronald Reagan Washington National) to Helena, MT (HLN-Helena Regional) cost?
You can find cheap one-way flights from $185 and cheap return flights from $472 Washington, DC (DCA-Ronald Reagan Washington National) to Helena, MT (HLN-Helena Regional) with Expedia. One-way flights typically cost between $215 and $614, and return flights often range between $651 and $1941. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Washington, DC (DCA-Ronald Reagan Washington National) to Helena, MT (HLN-Helena Regional) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Washington, DC (DCA-Ronald Reagan Washington National) to Helena, MT (HLN-Helena Regional)?
The cheapest month to fly from DCA to HLN is September when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Washington, DC (DCA-Ronald Reagan Washington National) to Helena, MT (HLN-Helena Regional)?
Enter DCA to HLN and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Washington, DC (DCA-Ronald Reagan Washington National) to Helena, MT (HLN-Helena Regional)?
United is one of the cheapest airlines offering connecting flights from DCA to HLN with a layover in O'Hare Intl. (ORD), with round-trip tickets starting from around $545. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Washington, DC (DCA-Ronald Reagan Washington National) to Helena, MT (HLN-Helena Regional)?
To find a cheap flight from Washington, DC (DCA-Ronald Reagan Washington National) to Helena, MT (HLN-Helena Regional), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Washington, DC (DCA-Ronald Reagan Washington National) to Helena, MT (HLN-Helena Regional)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
What is the earliest flight from Washington, DC (DCA-Ronald Reagan Washington National) to Helena, MT (HLN-Helena Regional)?
The earliest flight from Ronald Reagan Washington National Airport (DCA) to Helena Regional Airport (HLN) typically departs at 6:00 AM, operated by Delta. An early departure like this allows you to make the most of your day in Helena. This service operates seasonally in September. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Washington, DC (DCA-Ronald Reagan Washington National) to Helena, MT (HLN-Helena Regional)?
The most popular departure times for flights from Washington, DC (DCA) to Helena, MT (HLN) are in the late afternoon, from 3pm to 6pm. About 51% of passengers prefer this time window. Many major carriers, including United Airlines and Delta Air Lines, offer flights during this window. This timing is favored because it allows you to travel after a full day of work, making it convenient for both business and leisure travelers.
How long does it take to fly from Washington, DC (DCA-Ronald Reagan Washington National) to Helena, MT (HLN-Helena Regional)?
Flights from DCA to HLN with one stop typically take around 7 hours 20 minutes, covering approximately 1,836 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Washington, DC (DCA-Ronald Reagan Washington National) to Helena, MT (HLN-Helena Regional)?
First class seats are offered on the DCA to HLN route with Delta Air Lines and United Airlines.
How do I earn miles on a Washington, DC (DCA-Ronald Reagan Washington National) to Helena, MT (HLN-Helena Regional) flight with Expedia?
It's easy to earn miles on a Washington, DC (DCA-Ronald Reagan Washington National) to Helena, MT (HLN-Helena Regional) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Helena from Ronald Reagan Washington National (DCA)?
From Ronald Reagan Washington National (DCA), you can fly into Helena Regional (HLN) to reach Helena. Some flights may connect through major hubs like O'Hare Intl. (ORD), Liberty Intl. (EWR), George Bush Intercontinental (IAH) before reaching Helena. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Washington, DC (DCA-Ronald Reagan Washington National) to Helena, MT (HLN-Helena Regional) at the last minute?
Typically, booking a last minute flight from Washington, DC (DCA-Ronald Reagan Washington National) to Helena, MT (HLN-Helena Regional) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Washington, DC (DCA-Ronald Reagan Washington National) to Helena, MT (HLN-Helena Regional) flight and hotel package?
Securing a Washington, DC (DCA-Ronald Reagan Washington National) to Helena, MT (HLN-Helena Regional) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Washington, DC (DCA-Ronald Reagan Washington National) to Helena, MT (HLN-Helena Regional)?
If you booked your Washington, DC (DCA-Ronald Reagan Washington National) to Helena, MT (HLN-Helena Regional) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Ronald Reagan Washington National
Destination airport
Helena Regional
Airlines serving
Alaska Airlines, Delta, United
Roundtrip price
$472
Distance
1835 mi

*Flight schedules are subject to change.

*Available to One Key members.

 

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