WAS - HLN

$214 Find Cheap Flights from Washington, D.C. to Helena

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Washington, D.C. to Helena departing on 8/12. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Helena

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Helena, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Helena, as well as popular online travel agencies
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Flights Deals

Cheap Flights from Washington, D.C. to Helena (WAS-HLN)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Washington, D.C. to Helena that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Washington, D.C. to Helena

Sat, Oct 4 - Tue, Oct 7
Alaska Airlines Logo
7:51 am - 5:41 pmBWI-HLN
11h 50m1 stop
Alaska Airlines Logo
6:18 pm - 6:12 amHLN-BWI
9h 54m1 stop
$318Alaska Airlines
Find Deal
Thu, Sep 18 - Wed, Sep 24
Alaska Airlines Logo
7:37 pm - 3:21 pmBWI-HLN
21h 44m1 stop
Alaska Airlines Logo
4:02 pm - 5:39 amHLN-BWI
11h 37m1 stop
$338Alaska Airlines
Find Deal
Thu, Oct 16 - Mon, Oct 20
Alaska Airlines Logo
7:51 am - 5:41 pmBWI-HLN
11h 50m1 stop
Alaska Airlines Logo
6:18 pm - 6:12 amHLN-BWI
9h 54m1 stop
$358Alaska Airlines
Find Deal
Sat, Aug 30 - Sat, Sep 6
Alaska Airlines Logo
7:00 am - 3:21 pmBWI-HLN
10h 21m1 stop
Alaska Airlines Logo
4:02 pm - 5:39 amHLN-BWI
11h 37m1 stop
$389Alaska Airlines
Find Deal
Sat, Oct 4 - Tue, Oct 7
United Airlines Logo
4:21 pm - 9:00 pmBWI-HLN
6h 39m1 stop
United Airlines Logo
2:44 pm - 11:18 pmHLN-BWI
6h 34m1 stop
$417United Airlines
Find Deal
Sat, Aug 23 - Tue, Aug 26
Alaska Airlines Logo
7:00 am - 3:21 pmIAD-HLN
10h 21m1 stop
Alaska Airlines Logo
4:02 pm - 7:32 amHLN-IAD
13h 30m1 stop
$426Alaska Airlines
Find Deal
Sat, Aug 23 - Tue, Aug 26
Delta Logo
5:20 pm - 10:13 pmDCA-HLN
6h 53m1 stop
Delta Logo
5:50 am - 4:10 pmHLN-DCA
8h 20m1 stop
$427Delta
Find Deal
Sat, Aug 23 - Tue, Aug 26
Delta Logo
12:20 pm - 10:13 pmDCA-HLN
11h 53m2 stops
Delta Logo
5:50 am - 4:10 pmHLN-DCA
8h 20m1 stop
$432Delta
Find Deal
Sat, Oct 4 - Tue, Oct 7
Hawaiian Airlines Logo
7:51 am - 5:41 pmBWI-HLN
11h 50m1 stop
Hawaiian Airlines Logo
6:18 pm - 6:12 amHLN-BWI
9h 54m1 stop
$443Hawaiian Airlines
Find Deal
Sat, Oct 4 - Tue, Oct 7
United Airlines Logo
6:29 am - 4:40 pmBWI-HLN
12h 11m2 stops
United Airlines Logo
2:44 pm - 11:18 pmHLN-BWI
6h 34m1 stop
$482United Airlines
Find Deal
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KAYAK's insights & trends for Washington, D.C. to Helena flights

Get data-powered insights and trends into flights from Washington, D.C. to Helena to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Washington, D.C. to Helena?

What’s the cheapest day of the week to fly from Washington, D.C. to Helena?

The average price of all round-trip flights from Washington, D.C. to Helena clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Helena on a Saturday and more expensive on a Wednesday. On your return trip to Washington, D.C., you should consider flying back on a Wednesday, and avoid Tuesdays for better deals.

Good to know

Low seasonApril
High seasonNovember
Cheapest flight$214
Best time to beat the crowds with an average 41% drop in price.
Most popular time to fly with an average 60% increase in price.
Flight from Washington Dulles Airport to Helena

When to book flights from Washington, D.C. to Helena

Are your dates flexible? Find out the best times to travel from Washington, D.C. to Helena based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Washington, D.C. to Helena

  • What is the cheapest flight from Washington, D.C. to Helena?

    In the last 3 days, the lowest price for a flight from Washington, D.C. to Helena was $214 for a one-way ticket and $318 for a round-trip.

  • Do I need a passport to fly between Washington, D.C. and Helena?

    A passport is not required to fly from Washington, D.C. to Helena.

  • Which airports will I be using when flying from Washington, D.C. to Helena?

    When flying out of Washington, D.C. you will be using one of these airports: Washington, D.C. Reagan-National or Washington, D.C. Dulles Intl. You will be landing at Helena.

  • Which aircraft models fly most regularly from Washington, D.C. to Helena?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Washington, D.C. to Helena?

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between Washington, D.C. and Helena, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from Washington, D.C. to Helena, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Helena are Delta and United Airlines. With an average price for the route of $606 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $723 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Washington, D.C. to Helena?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington, D.C. to Helena.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington, D.C. to Helena?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Helena from Washington, D.C. is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington, D.C. to Helena?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Helena with an airline and back to Washington, D.C. with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington, D.C. to Helena?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Helena from Washington, D.C. up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Washington, D.C. to Helena

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Helena. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Washington, D.C. to Helena? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
DeltaOverall score based on 7952 reviews
7.3Food
7.9Comfort
8.2Boarding
7.9Entertainment
8.5Crew
Airline reviews

Everything was fine except the entertainment was not working for half of the flight.

8.0 ExcellentEileen, Jul 2025BOS - PBI
Read more Delta reviews

Everything was fine except the entertainment was not working for half of the flight.

Easy boarding with an extremely kind attendant. Seats were spacious and we had 3 seats for 2 people so we could stretch out. Comfortable air flow and very attentive and hospital attendants. Bathrooms and food were the only negative. Bathrooms were so small you could hardly get in and close the door. I don’t think an obese person would fit or a person with a movement disability. Food was the trending food for flights, nonexistent. We spent $40 getting sandwich and snack at airport for our 6 hour flught.

At first, we were on the runway for about an hour, literally. The Captain did explain that the Control Tower just had a change shift (sounds like an unrealistic excuse) and then that we had to change a runway. A regular economy seat is made for 12 yo twiggy. I understand Delta wants to push for an upgrade, but after sitting in a Comfort seat and in First class. I would say First class is not worthy of my money. The landing was delayed because of the weather in NYC, I don't hold that against Delta, of course. The Captain did alert us to that upon takeoff in Vegas and again as we reached NY.

No one fussed at me about my pap machine as a 3rd pice on the plane. Boarding was pleasant and smooth. The boarding agent in Anchorage was a fun character- he could be in a movie. :~) The on-board crew were downright pleasant. No militant attitudes on Delta. Like all planes these days the seats are too narrow for standard Americans and at 5’2” there is barely enough leg room. I don’t know how tall people fold themselves into the seats. But that’s nothing specific to Delta

My husband upgraded our seats and I don't know if it was due to the type of planet was or if they didn't upgrade our seats. We were supposed to be in I believe comfort seats and they were just as tight as any other seat- no leg room and we are very tall people but at least it wasn't extremely cold. My husband did put in a complaint about our seating because he paid extra and if we would have known that the space and the tightness would have been the same, we just would have gotten the emergency row emergency row seats that we normally get. We love Delta but both our flights coming home we're not good. Oh I forgot to mention that on our flight to Hawaii our luggage wheels got broke and we had to purse new luggage on vacation then we never had this problem so we didn't know protocol and reported it after we got home only for them to tell is we only had 24hrs to report the damage. Not sure what was going on with Delta this vacation trip.

My flight was extremely cold. I had a jacket and a cover was left in each seat. The cover was extremely thin and I have a disability, fibromyalgia and arthrithis and AC air is the worst. I closed my vent and my husbands vent and it still was frigid. I asked the attendant if I could get another cover and she quickly almost dismissively and totally unconcerned stating, (I quote) (one per chair) and walked off so quickly that I didn't get a chance to explain to her that I literally have adisability. I didnt want to make a seen so I set on that flight for over 5 hours in pain, joints locking up and extremely uncomfortable. When my fibromyalgia flares up my joints not only ache but they will lock up also and it takes me days to get back to my regular self even though I take medication for it. I felt like it would not have hurt anyone at all for her to just give me an extra cover because I'm sure they have all types of medical issues in people that fly every day.

After all the weather issues at least they got me to my destination the next day

My flight was canceled after being rescheduled for four days canceling my trip. Kayak and everyone affiliated with it I.e the airlines, and just fly have been excruciating to deal with. My trip to visit family had to be canceled as there was no way to make it. I am furious at all of you.

They delayed our flight because of bad weather in NY which was completely understandable. Then they cancelled our flight and a later flight that evening. The earliest we could fly was the next morning. We ended up buying last minute tickets on another airline and made it home slightly delayed but safely that evening. Delta kept saying it was weather related but if that was the case how did we make it back on another airline? The weather in NY was cloudy but not bad.

From Atlanta to Savannah - flight connection was way to short (we weren't even late landing ) and flight was already boarding when we landed - we were told we were the last on board and so we had to gate check our bags. Once we got on the plane, there were at least seven open bag spots so that was unnecessary delay. There should be better communication between the gate agent and the crew.

I liked the choice of lemon ginger tea. I think stewardesses can be more considerate of older people needs.

It was great, I’m very grateful for the pilots and crew flight attendants for everything.

Everything was great. Only thing that could’ve made it better was buy on board options for hot food, but the snacks were decent. The flight attendants were great. I had no complaints. I was able to make it to my destination safely

Overall it was good. I missed my connection but I was put on another flight.

We were given vouchers we couldn’t use with a 5.5 hour delay

I fly UAL 7-8 times per year. This flight was not up to snuff because it boarded very late "due to unexpected delays in restocking the plane" and yet Flight Aware showed the plane had landed some 10 hours earlier--so I think they could have planned accordingly. The FA's were nice but harried. The video system had to be rebooted 3-4 times. The food service was rather abrupt; they forgot my row and when I asked for my meal, they brought it with some impatience. Overall, the flight was fine, but the little details made it feel somewhat mundane and hurried.

I didn’t get on plane. Passport being processed by consulate with visa application. Tried to cancel through underpricer after purchasing cacelling for any reason. No dice, they are thieves.

When I booked it on Kayak it aaid that I wasn't allowed hamd luggage. I called United Airlines and it took them 6 minutes to figure out if I was allowed free hand luggage. Surely something that simple they should be able to tell me instantly.

We were delayed in Toronto on the tarmac for THREE hours with no clear indication as to why except that it was not a safety hazard. Pilot did apologize more than once but even he was unable to explain why exactly we were delayed. I overheard the stewards saying that the captain was very frustrated with the situation as well because he was not able to explain why except it had something to do with water supply or system on the aircraft and now we needed to wait for an engineer to approve the aircraft for flight. It was very frustrating and distressing as a passenger and we should have been given complimentary meals at the very least.

Flight was cramped with every seat taken. The food was fine, nothing crazy to write home about. The plane felt dated and needing some TLC, the button for the window shade didn't work and there were no AC outlets to use. When communicating with staff all except one nice lady never seemed happy to help me almost like I was bothering them when asked for things like a glass of water or a snack. The flight was overall fine. It did what was needed which is get me from point A to point B. But it certainly was not special. I don't expect much in economy but I believe economy on a host of other airlines is more memorable and better experience.

Everything you need to know for your flight from Washington, D.C. to Helena

Information on your arrival and departure airports

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