A cityscape at dusk with illuminated buildings and a prominent cathedral with two spires. Snow-covered mountains are visible in the background.

$180 Cheap Flights from Washington (DCA) to Helena (HLN)

View $180 flight on Tue, Sep 1, 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 $180 for one-way flights and $379 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sat, Aug 22 - Sat, Aug 29
DCA
Washington
HLN
Helena
$379 Roundtrip, found 12 hours ago
$379
Roundtrip
found 12 hours ago
Select United flight, departing Sat, Aug 22 from Washington to Helena, returning Sat, Aug 29, priced at $379 found 12 hours ago
Delta
Sat, Aug 22 - Sat, Aug 29
DCA
Washington
HLN
Helena
$449 Roundtrip, found 12 hours ago
$449
Roundtrip
found 12 hours ago
Select Delta flight, departing Sat, Aug 22 from Washington to Helena, returning Sat, Aug 29, priced at $449 found 12 hours ago
Alaska Airlines
Sat, Aug 29 - Sat, Sep 5
DCA
Washington
HLN
Helena
$454 Roundtrip, found 3 days ago
$454
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Sat, Aug 29 from Washington to Helena, returning Sat, Sep 5, priced at $454 found 3 days ago
Delta
Sat, Aug 22 - Sat, Aug 29
DCA
Washington
HLN
Helena
$484 Roundtrip, found 12 hours ago
$484
Roundtrip
found 12 hours ago
Select Delta flight, departing Sat, Aug 22 from Washington to Helena, returning Sat, Aug 29, priced at $484 found 12 hours ago
Alaska Airlines
Sat, Aug 29 - Sat, Sep 5
DCA
Washington
HLN
Helena
$504 Roundtrip, found 3 days ago
$504
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Sat, Aug 29 from Washington to Helena, returning Sat, Sep 5, priced at $504 found 3 days ago
Delta
Tue, Aug 11 - Tue, Aug 18
DCA
Washington
HLN
Helena
$547 Roundtrip, found 4 days ago
$547
Roundtrip
found 4 days ago
Select Delta flight, departing Tue, Aug 11 from Washington to Helena, returning Tue, Aug 18, priced at $547 found 4 days ago
Delta
Sat, Aug 22 - Sat, Aug 29
DCA
Washington
HLN
Helena
$549 Roundtrip, found 12 hours ago
$549
Roundtrip
found 12 hours ago
Select Delta flight, departing Sat, Aug 22 from Washington to Helena, returning Sat, Aug 29, priced at $549 found 12 hours ago
Delta
Sat, Aug 22 - Sat, Aug 29
DCA
Washington
HLN
Helena
$584 Roundtrip, found 12 hours ago
$584
Roundtrip
found 12 hours ago
Select Delta flight, departing Sat, Aug 22 from Washington to Helena, returning Sat, Aug 29, priced at $584 found 12 hours ago
Delta
Sat, Aug 22 - Sat, Aug 29
DCA
Washington
HLN
Helena
$594 Roundtrip, found 12 hours ago
$594
Roundtrip
found 12 hours ago
Select Delta flight, departing Sat, Aug 22 from Washington to Helena, returning Sat, Aug 29, priced at $594 found 12 hours ago
Alaska Airlines
Sat, Aug 29 - Sat, Sep 5
DCA
Washington
HLN
Helena
$599 Roundtrip, found 3 days ago
$599
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Sat, Aug 29 from Washington to Helena, returning Sat, Sep 5, priced at $599 found 3 days ago

What you need to know for your flight from Ronald Reagan Washington National to Helena Regional

Washington (DCA) to Helena (HLN) at a glance

Explore a range of airlines servicing the route from Washington (DCA) to Helena (HLN) on this domestic long-haul journey. Compare various full-service carriers to discover the itinerary that best aligns with your budget, schedule, and travel plans as you set out to experience the iconic sights and neighborhoods of Helena. Here, you'll find essential information for flights departing from Ronald Reagan Washington National Airport (DCA) to Helena Regional Airport (HLN).

  • Fastest flight duration: around 6h 30m in-flight, plus roughly 1 hour layover with one stop
  • Route distance: roughly 1,800 miles (2,900 km)
  • Flights per week: around 8 departures on average
  • Typical fares (one-way): economy tickets often range from $195–$580, depending on seasonality and how far ahead you book

Flights from Ronald Reagan Washington National Airport (DCA) to Helena Regional Airport (HLN)

According to recent traveler bookings, the most popular airlines for flights from Washington to Helena often feature one-stop services, with common layover locations including Seattle-Tacoma International Airport (SEA) for approximately 2 hours and 15 minutes, Denver International Airport (DEN) for about a 50-minute layover, and Salt Lake City International Airport (SLC) with a 45-minute stop. This allows you to tailor your travel experience by balancing cost, overall travel time, and cabin class to find the ideal itinerary.

  • Alaska Airlines: This full-service airline provides one-stop options, with one-way fares generally falling between $245 and $570. It represents about 40% of departures for this route, offering an in-flight duration of 6 hours and 30 minutes, leading to a total travel time of approximately 7 hours and 15 minutes (including layover).
  • United: Another full-service provider, United offers one-stop flights with one-way prices typically ranging from $220 to $495. Similar to Alaska Airlines, it accounts for around 40% of departures, featuring an in-flight time of 6 hours and 30 minutes, resulting in a total journey duration of about 7 hours and 15 minutes (including layover).
  • Delta: As a full-service carrier, Delta offers one-stop service with one-way fares usually between $195 and $550. It handles roughly 20% of departures on this route, with an in-air time of 6 hours and 30 minutes and an overall travel time of around 7 hours and 15 minutes (including layover).

Alternative routes from Washington (DCA) to Helena (HLN)

  • Washington to Helena (IAD-HLN): Located approximately 23 miles from Ronald Reagan Washington National Airport (DCA), Washington Dulles International Airport (IAD) offers one-way economy tickets that generally fall between $175 and $560, influenced by the season and how far in advance you book. Typically, this route features one-stop flights, with common layover points at Denver International Airport (DEN) and Salt Lake City International Airport (SLC). The leading airlines for this journey include United and Delta.
  • Washington to Bozeman (DCA-BZN): Bozeman Yellowstone International Airport (BZN) is situated roughly 70 miles from Helena Regional Airport (HLN). One-way economy fares on this route usually range from $130 to $380, varying with the season and booking date. Travelers can choose between non-stop and one-stop flights, with popular layover airports including O'Hare International Airport (ORD) and Minneapolis - St. Paul International Airport (MSP). Major carriers on this route are American Airlines and United, and first-class service is also available.

How to find the best prices for flights from Washington (DCA) to Helena (HLN)

Getting some of the best deals on flights from Washington to Helena is all about timing and flexibility. Here are some key tips to help you save:

  1. Best times to book and fly: cheaper fares are usually found when booking 2-8 weeks in advance, which aligns with when most travelers make their reservations. Departures in the afternoon (12pm-6pm) not only tend to be more affordable but are also the most popular flight times. Additionally, flying on Saturday offers both lower prices and is the most favored travel day.
  2. Set up price alerts: stay updated on price changes by using Expedia's Price Tracker. Receive alerts when fares drop for your selected route.
  3. Bundle and save: bundle your flight and hotel to save on Expedia, or unlock a hotel deal after booking your flight.* Find Helena hotel and flight deals.
  4. Compare flight options: use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
  5. Stay flexible with dates: being open to different travel days can sometimes help you find better prices on flights and hotels.
  6. Think about luggage: nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your allowance before confirming your booking to avoid excess baggage fees at the airport.

*Members only. Savings vary and are not available on all bundles. Select hotels.

Arriving at Helena Regional Airport from Ronald Reagan Washington National Airport

Helena welcomes travelers from Washington with a range of transport options based on price, convenience, and proximity. For departures, Ronald Reagan Washington National Airport is roughly a 10-minute drive (covering about 5 miles) from central Washington. Here's how to reach Helena efficiently:

  • Hotel transfer: Transfers offer a convenient way to reach your hotel in Helena, with options including free hotel shuttles and private rides, which can be arranged in advance with your hotel.
  • Car rental: Renting a car from Helena Regional Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at Helena Regional Airport on Expedia.
  • Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.

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 $180 and cheap return flights from $379 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 August 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
Delta, United
Roundtrip price
$378
Distance
1835 mi

Book with confidence

Washington to Helena Flights

The cheapest times to fly from Washington to Helena

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Washington to Helena are during the month of August. You can find some of the cheapest flights from Washington to Helena with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Washington to Helena

Sunday is one of the best days to book for cheap flights from Washington to Helena: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Washington to Helena

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Washington to Helena in 2026. You can also book with separate airlines for your outbound and return journeys, from $180 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Washington to Helena flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Washington to Helena airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Washington to Helena Flights

*Flight schedules are subject to change.

*Available to One Key members.

 

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