HLN - WAS

$195 Find Cheap Flights from Helena to Washington, D.C.

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 Washington, D.C. departing on 1/7. 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 Washington, D.C.

 
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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Everything you should know

Cheapest round-trip
$354
Alaska Airlines
Wed 1/21Sat 1/24
HLN - IAD • 1 stop
Cheapest one-way
$195
Delta
Wed 1/7
HLN - IAD • 1 stop
Top airlines
Alaska Airlines
Cheapest • from $354 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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We hope you love your trip to Washington, D.C.!
Flight Deals
Booking Insights
Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Helena to Washington, D.C. 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 Washington, D.C.

Wed, Jan 21 - Sat, Jan 24
Alaska Airlines Logo
6:48 pm - 4:26 pm
HLN
-
IAD
19h 38m1 stop
Alaska Airlines Logo
6:04 pm - 6:11 pm
IAD
-
HLN
26h 07m1 stop
$354Alaska Airlines
Fri, Jan 30 - Tue, Feb 3
Alaska Airlines Logo
6:48 pm - 4:09 pm
HLN
-
DCA
19h 21m1 stop
Alaska Airlines Logo
5:01 pm - 6:11 pm
DCA
-
HLN
27h 10m1 stop
$364Alaska Airlines
Fri, Jan 30 - Tue, Feb 3
Alaska Airlines Logo
6:48 pm - 9:59 pm
HLN
-
DCA
25h 11m1 stop
Alaska Airlines Logo
8:00 am - 6:11 pm
DCA
-
HLN
12h 11m1 stop
$374Alaska Airlines
Wed, Jan 21 - Sat, Jan 24
Alaska Airlines Logo
6:48 pm - 4:26 pm
HLN
-
IAD
19h 38m1 stop
Alaska Airlines Logo
6:04 pm - 6:11 pm
IAD
-
HLN
26h 07m1 stop
$375Alaska Airlines
Tue, Mar 3 - Sat, Mar 7
United Airlines Logo
2:25 pm - 11:19 pm
HLN
-
IAD
6h 54m1 stop
United Airlines Logo
4:03 pm - 9:25 pm
IAD
-
HLN
7h 22m1 stop
$405United Airlines
Tue, Feb 24 - Fri, Feb 27
United Airlines Logo
2:25 pm - 11:19 pm
HLN
-
IAD
6h 54m1 stop
United Airlines Logo
2:12 pm - 9:16 pm
IAD
-
HLN
9h 04m1 stop
$438United Airlines
Tue, Mar 31 - Tue, Apr 7
Delta Logo
5:30 am - 6:51 pm
HLN
-
DCA
11h 21m2 stops
Delta Logo
12:29 pm - 10:35 pm
DCA
-
HLN
12h 06m2 stops
$533Delta
Tue, Mar 31 - Tue, Apr 7
United Airlines Logo
2:30 pm - 11:31 pm
HLN
-
BWI
7h 01m1 stop
United Airlines Logo
4:12 pm - 8:59 pm
BWI
-
HLN
6h 47m1 stop
$557United Airlines
Mon, Jan 26 - Thu, Jan 29
United Airlines Logo
6:15 am - 3:04 pm
HLN
-
BWI
6h 49m1 stop
United Airlines Logo
8:23 am - 1:41 pm
BWI
-
HLN
7h 18m1 stop
$570United Airlines
Wed, Mar 4 - Fri, Mar 6
Delta Logo
1:05 pm - 11:44 pm
HLN
-
BWI
8h 39m1 stop
Delta Logo
7:05 am - 12:25 pm
BWI
-
HLN
7h 20m1 stop
$618Delta
Booking Insights

KAYAK's insights & trends for Helena to Washington, D.C. flights

Get data-powered insights and trends into flights from Helena to Washington, D.C. 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, D.C.?

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

When flying from Helena to Washington, D.C., you should consider leaving on a Wednesday and avoid Tuesdays if you are looking for the best rates. For your return to Helena, you’ll find the best rates on Saturdays and the most expensive ones on Wednesdays.

Find deals

Good to know

Cheapest flight$195
Flight from Helena to Washington Dulles Airport

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

Are your dates flexible? Find out the best times to travel from Helena to Washington, D.C. 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 Helena to Washington, D.C.

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

    In the last 3 days, the lowest price for a flight from Helena to Washington, D.C. was $195 for a one-way ticket and $354 for a round-trip.

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

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

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

    Helena is served by only 1 airport and there are 2 airports in Washington, D.C.. You will leave Helena from Helena and you will be arriving in Washington, D.C. at one of these airports: Washington, D.C. Reagan-National or Washington, D.C. Dulles Intl.

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

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

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

    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, D.C..

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington, D.C. 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, D.C.?

    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, D.C. with an airline and back to Helena with another airline.

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

    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, D.C. from Helena 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 Washington, D.C.

 
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 Washington, D.C.? 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 9092 reviews
7.3Comfort
8.1Crew
7.1Entertainment
6.6Food
7.7Boarding
Airline reviews

The food is terrible. The same pasta or chicken with bad taste and presentation

6.0 GoodClaudia, Dec 2025
GUA - IAD
Read more United Airlines reviews

The food is terrible. The same pasta or chicken with bad taste and presentation

It was probably one of the worst flights I’ve been on. The restrooms were never cleaned or stocked. The food was very subpar, and i usually enjoy airline food, so I was disappointed. It was just all around a bad experience. The only saving grace was the flight attendants.

The only downside was my cell phone charger wouldn’t work in the charging port but everyone else’s would work in them all. My cell phone cable works fine in my hotel room in Frankfurt.

Very thoughtful flight attendant offered me water immediately since I had run to make my connection.

Great crew, excellent landing, good food. Over all great experience. Thank you!

One bag is incorrect and not acceptable for an international flight. The food was not just good. I won't fly with them again.

Not pleasant trip cross country when the entertainment and WiFi system not working. No entertainment for entirety of route. Staff was rather nonchalant in that they dismissed the problem due to age of plane. It would have been nice to know this up front so I could have come prepared to read or download movies before boarding Coincidentally or not, there was a similar issue with the entertainment system on my previous flight I took on my fist leg of the trip. There are no seat TVs, so you must rely on the app when it works. United can do better. Also, what use it it to pay for boarding group 2 when half of the passengers are in the same line as you?

Crew was dismissive. Snacks and refills not offered. Poor business class experience. Bed not comfortable compared to Emirates or BA.

Flight was delayed for 5 hours because crew didn’t have enough time to rest - this seems like it could have been avoided with better scheduling. Food was not good.

IAD with the archaic people movers is just a place to be avoided.

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

Information on your arrival and departure airports

Helena (HLN)