$240 Find Cheap Flights from Helena to District of Columbia

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Helena to District of Columbia departing on 4/30. 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, 0 bags

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

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Helena to District of Columbia, 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 District of Columbia, as well as popular online travel agencies
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Flight Deals

Book Cheap Helena to District of Columbia Plane Tickets

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

Thu, May 7 - Tue, May 12
Alaska Airlines Logo
6:22 pm - 5:50 am
HLN
-
IAD
9h 28m
1 stop
Alaska Airlines Logo
7:10 am - 5:45 pm
IAD
-
HLN
12h 35m
1 stop
$343Alaska Airlines
Tue, Apr 21 - Thu, Apr 23
Alaska Airlines Logo
6:22 pm - 5:40 am
HLN
-
IAD
9h 18m
1 stop
Alaska Airlines Logo
7:10 am - 5:45 pm
IAD
-
HLN
12h 35m
1 stop
$369Alaska Airlines
Sat, Apr 25 - Wed, Apr 29
Alaska Airlines Logo
6:22 pm - 12:09 am
HLN
-
IAD
27h 47m
1 stop
Alaska Airlines Logo
7:10 am - 5:45 pm
IAD
-
HLN
12h 35m
1 stop
$370Alaska Airlines
Sat, Apr 25 - Wed, Apr 29
Alaska Airlines Logo
6:22 pm - 12:09 am
HLN
-
IAD
27h 47m
1 stop
Alaska Airlines Logo
7:10 am - 5:45 pm
IAD
-
HLN
12h 35m
1 stop
$410Alaska Airlines
Thu, May 7 - Tue, May 12
Alaska Airlines Logo
6:22 pm - 5:50 am
HLN
-
IAD
9h 28m
1 stop
Alaska Airlines Logo
6:47 pm - 4:06 pm
IAD
-
HLN
23h 19m
2 stops
$422Alaska Airlines
Tue, Apr 21 - Fri, Apr 24
Alaska Airlines Logo
6:22 pm - 5:40 am
HLN
-
IAD
9h 18m
1 stop
Alaska Airlines Logo
7:10 am - 5:45 pm
IAD
-
HLN
12h 35m
1 stop
$424Alaska Airlines
Tue, Apr 14 - Thu, Apr 16
Delta Logo
5:40 am - 6:00 pm
HLN
-
DCA
10h 20m
2 stops
Delta Logo
11:00 am - 10:30 pm
DCA
-
HLN
13h 30m
2 stops
$449Delta
Sat, May 2 - Tue, May 5
United Airlines Logo
2:30 pm - 11:34 pm
HLN
-
IAD
7h 04m
1 stop
United Airlines Logo
2:37 pm - 9:46 pm
IAD
-
HLN
9h 09m
1 stop
$469United Airlines
Tue, Apr 14 - Thu, Apr 16
Delta Logo
5:40 am - 6:00 pm
HLN
-
DCA
10h 20m
2 stops
Delta Logo
5:10 pm - 10:30 pm
DCA
-
HLN
7h 20m
1 stop
$549Delta
Tue, Apr 21 - Thu, Apr 23
Delta Logo
5:40 am - 6:59 pm
HLN
-
DCA
11h 19m
2 stops
Delta Logo
10:10 am - 10:30 pm
DCA
-
HLN
14h 20m
2 stops
$593Delta
Booking Insights

KAYAK's insights & trends for Helena to District of Columbia flights

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

Which airlines provide the cheapest flights from Helena to District of Columbia?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Helena to District of Columbia were found on Alaska Airlines ($370) and Delta ($549).

Good to know

Cheapest flight$240
Flight from Helena to Washington Dulles Airport

FAQs - booking District of Columbia flights

  • How does KAYAK find such low prices on flights from Helena to District of Columbia?

    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 District of Columbia.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Helena to District of Columbia?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Helena to District of Columbia 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 District of Columbia?

    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 from Helena to District of Columbia with an airline and back with another airline.

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

    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 from Helena to District of Columbia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Helena to District of Columbia

 
See real verified KAYAK customer reviews for airlines flying from Helena to District of Columbia. 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 District of Columbia? 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 9452 reviews
7.3Comfort
7.7Boarding
7.1Entertainment
6.6Food
8.1Crew
Airline reviews

Offered to check carry on to final destination. This is the most absurd thing in the world. I'm carrying on because I need what is in the carry-on. I'm okay with picking up at next stop but then I will be on much larger plane that can accommodate it. Also, if there is ever a change to your flight. Go to the airport and have the people there fix your ticket. Don't do it over the phone or online with United they screwed us up and ended up with flights for our last leg that took off before our first leg.

8.0 ExcellentMatthew, Mar 2026
CDG - IAD
Read more United Airlines reviews

Offered to check carry on to final destination. This is the most absurd thing in the world. I'm carrying on because I need what is in the carry-on. I'm okay with picking up at next stop but then I will be on much larger plane that can accommodate it. Also, if there is ever a change to your flight. Go to the airport and have the people there fix your ticket. Don't do it over the phone or online with United they screwed us up and ended up with flights for our last leg that took off before our first leg.

United is one airline which regardless of how many separate United tickets in existence, if one flight breaks down, the airline will take care of all the flights.

It was okay, the food was good, but after the landing there was not enough time for luggage and security to catch a connection. It was crowded on board.

When I went to check in at the United counter in Barcelona, Spain I had 2 different menat 2 different times in United uniforms (standing around with a couple other employees) ask me if I was traveling alone. The one man asked me 3 different ways if I was traveling alone. I am, 68 yeaers old and have all my faculties. I thought it was weird and it made me feel very uncomfortable. What difference does it make if I was traveling alone or with someone? What if I was a recent widow? That would have been horrible. They never gave me a reason why they needed to know who I was traveling with. I was hesitant to question them because I needed to be on that flight.

We were delayed for about an hour from taking off due to traffic control procedures at the destination airport. But once in the air, the flight went well. The crew members were great and provided cabin service despite moderate turbulence during much of the flight.

Crew was great. 2 1/2 hour delay was due to staff needing "rest" was avoidable and self inflicted as United not willing to hire enough crew to keep flight on time.. Ridiculous. The crew and the passengers both suffered due to this.

Fine not above and beyond as I had a connection that was delayed due to maintenance

Bad food, bad service, cold cabin with no additional blankets when asked for (they told me they don’t provide additional blankets). I’m a frequent traveler and this is one of the worst companies I traveled with (by the way I thought that I booked my ticket with Lufthansa but I didn’t see that the flights were handled by United).

Great other than a couple very drunk guys that for a while kept bumping my seat from behind. The staff did their best to control them. Even refused serving them alcohol and allowed the gal sitting next to them to move.

Good crew. Boarding delays. Almost two hours wait for the bags in DC.

Everything you need to know for your flight from Helena to District of Columbia

Information on your arrival and departure airports