HLN - IAD

$372 Find Cheap Flights from Helena to Washington Dulles Airport

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Helena to Dulles Intl departing on 4/8. 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.
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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Helena to Washington, D.C., 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 Helena to Washington, D.C., as well as popular online travel agencies
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Cheap Flight Deals from Helena to Dulles Intl (HLN-IAD)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Helena to Dulles Intl 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.

Recent round-trip flight deals from Helena to Dulles Intl

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Helena to Dulles Intl.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
1:20 pm - 11:32 pmHLN-IAD
8h 12m1 stop
1:26 pm - 10:35 pmIAD-HLN
11h 09m2 stops
$372Delta
Find Deal
Tue, Apr 8 - Tue, Apr 15
1:20 pm - 6:00 amHLN-IAD
14h 40m2 stops
1:26 pm - 10:35 pmIAD-HLN
11h 09m2 stops
$405Delta
Find Deal
Tue, Apr 8 - Tue, Apr 15
1:20 pm - 11:32 pmHLN-IAD
8h 12m1 stop
7:30 am - 12:37 pmIAD-HLN
7h 07m1 stop
$413Delta
Find Deal
Tue, Apr 8 - Tue, Apr 15
1:20 pm - 11:32 pmHLN-IAD
8h 12m1 stop
7:30 am - 12:37 pmIAD-HLN
7h 07m1 stop
$418Delta
Find Deal
Tue, Apr 8 - Tue, Apr 15
2:25 pm - 11:23 amHLN-IAD
18h 58m1 stop
5:55 pm - 1:41 pmIAD-HLN
21h 46m2 stops
$606United Airlines
Find Deal
Thu, Jan 30 - Mon, Feb 3
2:25 pm - 11:23 amHLN-IAD
18h 58m1 stop
5:20 pm - 1:41 pmIAD-HLN
22h 21m1 stop
$615United Airlines
Find Deal
Thu, Jan 30 - Mon, Feb 3
2:25 pm - 9:20 pmHLN-IAD
28h 55m2 stops
5:55 pm - 1:41 pmIAD-HLN
21h 46m2 stops
$623United Airlines
Find Deal
Thu, Jan 30 - Mon, Feb 3
4:10 pm - 5:55 amHLN-IAD
11h 45m1 stop
4:15 pm - 3:43 pmIAD-HLN
25h 28m2 stops
$692Alaska Airlines
Find Deal
Sun, Jun 1 - Wed, Jun 4
5:39 pm - 11:26 amHLN-IAD
15h 47m1 stop
3:44 pm - 8:59 pmIAD-HLN
7h 15m1 stop
$710United Airlines
Find Deal
Sun, Jun 1 - Wed, Jun 4
5:39 pm - 9:20 pmHLN-IAD
25h 41m2 stops
8:17 am - 8:59 pmIAD-HLN
14h 42m2 stops
$851United Airlines
Find Deal
Sun, Jun 1 - Wed, Jun 4

Flights from Helena to Dulles Intl - Travel Insights & Trends

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

What’s the cheapest day of the week to fly from Helena to Washington Dulles Airport?

The average price of all round-trip flights from Helena to Washington, D.C. Dulles Intl Airport clicked on KAYAK for each day over the last 12 months.
For Helena to Washington Dulles Airport, Monday is the cheapest day to fly on average and Tuesday is the most expensive. Flying from Washington Dulles Airport back to Helena, the best deals are generally found on Monday, with Wednesday being the most expensive.

Good to know

Cheapest flight

$372
Flight from Helena to Washington Dulles Airport

When to book flights from Helena to Dulles Intl

Are your dates flexible? Find out the best times to travel from Helena to Dulles Intl 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 Helena to Washington Dulles Airport flights

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

    In the last 3 days, the lowest price for a flight from Helena to Washington, D.C. Dulles Intl Airport was $372 for a round-trip ticket.

  • Do I need a passport to fly between Helena and Washington Dulles Airport?

    A passport is not required to fly from Helena to Washington Dulles Airport.

  • Which airports will I be using when flying from Helena to Washington Dulles Airport?

    When flying out of Helena you will be using Helena. You will be landing at Washington Dulles Airport, also known as Washington, D.C. Dulles Intl.

  • Which aircraft models fly most regularly from Helena to Washington Dulles Airport?

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

  • Which airline alliances offer flights from Helena to Washington Dulles Airport?

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

  • How does KAYAK find such low prices on flights from Helena to Washington Dulles Airport?

    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 Helena to Washington Dulles Airport.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington Dulles Airport from Helena 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 Helena to Washington Dulles Airport?

    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 Washington Dulles Airport with an airline and back to Helena with another airline. Booking your flights between Helena and IAD can sometimes prove cheaper using this method.

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

    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 Washington Dulles Airport from Helena up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top airline flying from Helena to Dulles Intl

 
See real verified KAYAK customer reviews for airlines flying from Helena to Washington, D.C.. 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 Helena to Dulles Intl? 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.
7.4
United AirlinesOverall score based on 8965 reviews
7.7Boarding
6.7Food
8.1Crew
7.1Entertainment
7.3Comfort
Airline reviews

Change cabin crew assisting business class. Not taking care, ignoring requests and calls. Never had such an experience in business class.

4.0 OkayAnonymous, Jan 2025MUC - IAD
Read more United Airlines reviews

Change cabin crew assisting business class. Not taking care, ignoring requests and calls. Never had such an experience in business class.

United left one of our bags back in SFO but that’s not my real complaint. The complaint is how it all went down. So we checked in the day before online and were told we could use the quick drop for luggage. So the next day I used baggage quick drop curbside at SFO. The agent mistakenly didn't tag my bag as he put my bag on the conveyor belt untagged. We immediately alerted him he had not tagged the bag. I walked with him to the baggage service office to find my bag and tag it. We waited outside the office for 10 mins. He came out and said everything was ok and the bag was going to be tagged and on my flight. We received a text that one of our bags was on the flight but the other was not. I alerted my first class flight attendant immediately upon boarding the flight. She was helpful and said she’d get it sorted out right away. She called over the gate agent. The gate agent used my bag number and looked over information on her device. She said my bag was on the flight. The flight attendant was standing with her, looking at the device, and also said “yep it’s on the flight”. During the flight the flight attendant made reference to how reassuring it must feel knowing the bag was on the flight. Upon arriving to IAD we received a text that my bag was not on my flight. The text said my bag would arrive to my final destination LIS 24 hrs late. I understand that mistakes happen. I was totally ok with my bag mistakenly not getting tagged at the quick drop. I was fine with walking down to baggage services to tag my bag. But, what I am not ok with is that the United staff said they fixed the mistake two different times, assuring me twice that my bag would be/was on the plane…and it wasn’t. I expected better attention by the employees, for them to do what they said they were going to do. We also spent extra money to upgrade our seats to first class, including the entire return leg from Lisbon to San Francisco because we wanted a smoother and more relaxing travel experience. Our money was not well spent. We will not be using United for travel going forward.

The flight was delayed, it took longer than anticipated because of weather, and they broke my luggage.

Horrifying! And I am almost 2 million miles with United. Late by 3 1/2 hours. Worst: after two hours on the plane waiting, they decided that one of the tires had been damaged and then decided to change it. Another hour and a half to change the tire!!!!! NO EXCUSE FOR THIS. The crew didn't even offer a glass of water until we had been on the plane for FIVE hours. This is the worst airline in the world. I'm simply stuck because they fly on the only routes I need.

Gate got changed about 4 times. Very confusing and very crowded. If you don’t have wifi to help get updates, you can be in deep trouble.

Attendants zipped through cabin so fast hardly anyone got the water they told us we could have in the short flight. Nothing else was offered.

Sucks ! All three flights I was on this trip were delayed.

The flight attendants were unhelpful. It was a packed flight, and usually a flight attendant would help find a spot in the bin for your carry on or shift things around. Neither made any effort to do so. Also, I had to then check my bag. I was told it would be on the carousel in YYZ, but it came up on the jetway. So lucky I saw others standing around for their bags. I would have walked straight past this and on to the carousel. They could have at least told me that they had given me wrong information. Very unsatisfactory.

The crew was outstanding. And the food was surprisingly good. The chicken and the pasta dish were both delicious and I was supposed with a pizza twist near Landing. We hit a lot of turbulence and the crew was calm and kind. Loved the TV in screen. Tons of new releases.

ANA was great. United was horrible. They bumped us from economy plus to economy and were supposed to contact us for a refund but no luck. We booked the seats 9 months in advance.

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