Title: Cheap Flights from Helena (HLN) to Washington (DCA) - Expedia.ca ![Washington DC in Spring](https://images.trvl-media.com/place/3763/58eb1a51-e7f1-4f17-88af-21174d495e42.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://a.travel-assets.com/travel-assets-manager/fallback-images-brand/bex_flights_v2.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # Cheap Flights from Helena (HLN) to Washington (DCA) - [Roundtrip](?flightType=roundtrip) - [One-way](?flightType=oneway) - [Multi-city](?flightType=multicity) ### Travellers Adults ChildrenAges 2 to 17 InfantsYounger than 2 EconomyPremium economyBusiness classFirst class Leaving from Going to Departing Returning Add a place to stay Add a car Direct flights only ## Popular airlines from Helena, MT (HLN-Helena Regional) to Ronald Reagan National Airport (DCA) - ![Alaska Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AS.svg) Alaska Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:hln,to:dca,departure:22/10/2025TANYT&leg2=from:dca,to:hln,departure:29/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AS"}}]) - ![Delta](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_DL.svg) Delta [](https://www.expedia.ca/Flights-Search?leg1=from:hln,to:dca,departure:22/10/2025TANYT&leg2=from:dca,to:hln,departure:29/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"DL"}}]) - ![United](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_UA.svg) United [](https://www.expedia.ca/Flights-Search?leg1=from:hln,to:dca,departure:22/10/2025TANYT&leg2=from:dca,to:hln,departure:29/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"UA"}}]) - ![Hawaiian Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_HA.svg) Hawaiian Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:hln,to:dca,departure:22/10/2025TANYT&leg2=from:dca,to:hln,departure:29/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"HA"}}]) ![notification illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__notification.svg) ### Be in the know Get alerts if flight prices drop or rise\* ![deals illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__deals.svg) ### Book smarter Save up to 30% on select hotels after you book a flight\* ![trophy illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__trophy.svg) ### Earn twice Earn your airline miles on top of our rewards [Sign in](https://www.expedia.ca/login) ## Frequently asked questions ### How much is a flight from Helena Regional Airport to National Airport? > Within the past 7 days on Expedia, for flights departing within the next year, the lowest price advertised for a round-trip flight between Helena Regional Airport and DCA was . Fares this good don't wait forever, so make sure you book yours today. Prices and availability are subject to change. Additional terms apply. ### Do I need to pay a cancellation fee if I cancel my flight from HLN to National Airport? > We understand that your situation can change unexpectedly, so we've made it as hassle-free as possible for you to cancel your flight online. Just visit the [Customer Service Portal](https://www.expedia.ca/helpcenter) and follow the instructions. ### How do I find cheap flights from Helena Regional Airport (HLN) to Ronald Reagan Washington National Airport (DCA) that have flexible change policies? > Use our "No change fees" filter to find flexible travel options for your flight from HLN to Ronald Reagan Washington National Airport (DCA). This allows you to lock in a good price in advance and still have the freedom to make changes without any additional fees. You'll just need to pay the fare difference, if applicable. ### How many hours is the flight from Helena Regional Airport to Ronald Reagan Washington National Airport (DCA)? > Consider bringing your own on-board entertainment (like some downloaded podcasts), as it takes approximately 6 hours and 1 minute to arrive at DCA from HLN. A good set of noise-cancelling headphones will be handy too. ### How far is the flight from HLN to Ronald Reagan Washington National Airport (DCA)? > The flight distance between HLN and National Airport is 3,000 kilometres. Sneak in a nap or make a start on the latest bestseller and the trip will zip on by. ### Which airlines fly direct from Helena Regional Airport (HLN) to Ronald Reagan Washington National Airport (DCA)? > Flying nonstop between HLN and Ronald Reagan Washington National Airport (DCA) isn't possible right now. However, you'll still be able to find a flight to Arlington with at least one stop. ### Are Helena Regional Airport to National Airport flight tickets cheaper when they're purchased at the last minute? > Booking your trip from HLN to Ronald Reagan Washington National Airport (DCA) last minute could save you some cash. However, it could end up costing a good deal more! If you'd rather play it safe, book well ahead of your departure date. In fact, Expedia has some of the biggest bargains as far ahead as 12 months in advance. If your preferred carrier hasn't released tickets yet, check back frequently as deals are updated on Expedia all the time. ## Travel information | Origin airport | Helena Regional | | --- | --- | | Destination airport | Ronald Reagan Washington National | | Distance | 2937 km | ## Book with confidence ### Helena to Washington Flights **The easy way to book your flights from Helena to Washington**  With Expedia, it’s simple to find and book flights to Washington from Helena whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from airlines that cover this route. There are nonstop flights to Ronald Reagan Washington National, too.   Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Helena to Washington today, tomorrow, or this week.   **Save dollars with cheap flights from Helena Regional, HLN to Ronald Reagan Washington National, DCA**  Sort your search results by price to find great deals on your flight from Helena to Washington—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Washington from Helena currently is just rising to .   Here are more money-saving tips:  - Fly in when flight prices are normally at their lowest  - Book about a month to 6 weeks before you travel for the best prices to Washington   - Avoid peak season and weekends when flights can cost more - Early morning and late-night flights are sometimes cheaper, so try varying your travel times  - One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free!  **Reasons to choose Expedia for your flight to Washington from Helena**  Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. 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