HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Helena

$257+ Cheap flights from Washington, D.C. (WAS) to Helena (HLN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/9. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — HLN
Feb 14 — Feb 211
Sat 2/14
Sat 2/21
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Washington, D.C. to Helena with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Washington, D.C. to Helena

Discover tips and strategies to find the most affordable flight options for your journey from Washington, D.C. (WAS) to Helena (HLN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 15, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$334
(United Airlines)

One-way from

$257
(Delta)

Popular in

November

Cheapest in

April

Average price

$483
Provider with most accurate pricing for Washington, D.C. (WAS)-Helena flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Helena flights.
Search Deals
From Washington, D.C. (WAS) to Helena
Search Deals
One-way flight from Washington, D.C. (WAS) to Helena
Search Deals
Highest demand for flights based on searches. 35% potential increase in price ($390 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 9% potential price decrease ($62 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Find flight deals from Washington, D.C. to Helena

Cheapest flights from Washington, D.C. to Helena
Explore the most affordable flight options available from Washington, D.C. to Helena. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 15, 2026.

This United Airlines deal was found by Cheapflights users on 1/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/44:10 pm
BWI
-
HLN
1 stop7h 16m
United Airlines
Sun 2/82:27 pm
HLN
-
BWI
1 stop6h 48m
United Airlines
Deal found 1/14$334
This United Airlines deal was found by Cheapflights users on 1/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/294:10 pm
BWI
-
HLN
1 stop7h 16m
United Airlines
Mon 2/22:27 pm
HLN
-
BWI
1 stop6h 48m
United Airlines
Deal found 1/14$359
This United Airlines deal was found by Cheapflights users on 1/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/314:10 pm
BWI
-
HLN
1 stop7h 16m
United Airlines
Wed 2/46:45 am
HLN
-
BWI
2 stops12h 36m
United Airlines
Deal found 1/15$364
This United Airlines deal was found by Cheapflights users on 1/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/294:10 pm
BWI
-
HLN
1 stop7h 16m
United Airlines
Sun 2/12:27 pm
HLN
-
BWI
1 stop6h 48m
United Airlines
Deal found 1/15$372
This United Airlines deal was found by Cheapflights users on 1/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/62:12 pm
IAD
-
HLN
1 stop9h 13m
United Airlines
Tue 3/102:30 pm
HLN
-
IAD
1 stop6h 50m
United Airlines
Deal found 1/15$379
This Alaska Airlines deal was found by Cheapflights users on 1/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/257:10 am
IAD
-
HLN
1 stop12h 35m
Alaska Airlines
Fri 5/16:22 pm
HLN
-
IAD
1 stop27h 47m
Alaska Airlines
Deal found 1/13$393
This United Airlines deal was found by Cheapflights users on 1/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/244:10 pm
BWI
-
HLN
1 stop7h 16m
United Airlines
Wed 1/282:27 pm
HLN
-
BWI
1 stop6h 48m
United Airlines
Deal found 1/13$404
This United Airlines deal was found by Cheapflights users on 1/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/244:11 pm
DCA
-
HLN
1 stop7h 15m
United Airlines
Wed 1/286:15 am
HLN
-
DCA
1 stop6h 44m
United Airlines
Deal found 1/13$404
This United Airlines deal was found by Cheapflights users on 1/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/244:11 pm
IAD
-
HLN
1 stop7h 15m
United Airlines
Wed 1/282:27 pm
HLN
-
IAD
1 stop6h 55m
United Airlines
Deal found 1/13$404
This Alaska Airlines deal was found by Cheapflights users on 1/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/66:20 pm
IAD
-
HLN
2 stops23h 39m
Alaska Airlines
Tue 3/104:36 pm
HLN
-
IAD
2 stops22h 51m
Alaska Airlines
Deal found 1/15$413
This Delta deal was found by Cheapflights users on 1/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/67:05 am
IAD
-
HLN
1 stop7h 20m
Delta
Tue 3/1012:59 pm
HLN
-
IAD
1 stop8h 41m
Delta
Deal found 1/14$414
This Alaska Airlines deal was found by Cheapflights users on 1/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/37:11 pm
IAD
-
HLN
1 stop24h 34m
Alaska Airlines
Mon 4/136:22 pm
HLN
-
IAD
1 stop9h 18m
Alaska Airlines
Deal found 1/14$431

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington, D.C. to Helena that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 15, 2026.
Use the filters below to find and compare flights from Washington, D.C. to Helena that are best for you.

Fly from

Washington, D.C.

Fly to

Helena

Route

Depart

Return

Price

BaltimoreHelena

BWI - HLN

BWIHLN

Baltimore/Washington

Wed 2/4

4:10 pm-9:26 pm

1 stop7h 16m

Helena

Sun 2/8

2:27 pm-11:15 pm

1 stop6h 48m

$334

BaltimoreHelena

BWI - HLN

BWIHLN

Baltimore/Washington

Sat 1/31

4:10 pm-9:26 pm

1 stop7h 16m

Helena

Wed 2/4

2:27 pm-11:15 pm

1 stop6h 48m

$359

BaltimoreHelena

BWI - HLN

BWIHLN

Baltimore/Washington

Fri 1/30

4:10 pm-9:26 pm

1 stop7h 16m

Helena

Tue 2/3

2:27 pm-11:16 pm

1 stop6h 49m

$359

BaltimoreHelena

BWI - HLN

BWIHLN

Baltimore/Washington

Thu 1/29

4:10 pm-9:26 pm

1 stop7h 16m

Helena

Sun 2/1

2:27 pm-11:15 pm

1 stop6h 48m

$372

Washington, D.C.Helena

IAD - HLN

IADHLN

Washington, D.C. Dulles Intl

Fri 3/6

2:12 pm-9:25 pm

1 stop9h 13m

Helena

Tue 3/10

2:30 pm-11:20 pm

1 stop6h 50m

$379

Washington, D.C.Helena

IAD - HLN

IADHLN

Washington, D.C. Dulles Intl

Sat 4/25

7:10 am-5:45 pm

1 stop12h 35m

Helena

Fri 5/1

6:22 pm-12:09 am

1 stop27h 47m

$393

Washington, D.C.Helena

IAD - HLN

IADHLN

Washington, D.C. Dulles Intl

Sat 4/25

7:10 am-5:45 pm

1 stop12h 35m

Helena

Thu 4/30

6:22 pm-12:09 am

1 stop27h 47m

$393

Washington, D.C.Helena

IAD - HLN

IADHLN

Washington, D.C. Dulles Intl

Fri 3/6

7:05 am-12:25 pm

1 stop7h 20m

Helena

Tue 3/10

12:59 pm-11:40 pm

1 stop8h 41m

$414

Washington, D.C.Helena

IAD - HLN

IADHLN

Washington, D.C. Dulles Intl

Fri 4/3

8:25 am-1:39 pm

1 stop7h 14m

Helena

Mon 4/13

2:25 pm-11:34 pm

1 stop7h 09m

$414

Washington, D.C.Helena

IAD - HLN

IADHLN

Washington, D.C. Dulles Intl

Fri 4/3

7:11 pm-5:45 pm

1 stop24h 34m

Helena

Mon 4/13

6:22 pm-5:40 am

1 stop9h 18m

$431

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/14

Showing 1-10 of 49 results
1
2
3
...
5

Compare providers for flights from Washington, D.C. to Helena

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Washington, D.C. to Helena in January.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Washington, D.C.-Helena flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Washington, D.C.-Helena flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Washington, D.C.-Helena flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C.-Helena flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C.-Helena flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Washington, D.C. to Helena

Have a flexible travel schedule? Discover the best time to fly to Helena from Washington, D.C. with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

What is the cheapest month to book a flight from Washington, D.C. to Helena?

Currently, June is the cheapest month in which you can book a flight from Washington, D.C. to Helena (average of $176). Flying from Washington, D.C. to Helena in March is currently the most expensive (average of $321). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from Washington, D.C. to Helena?

Reviews of airlines servicing Helena

Get insights into the airlines that provide service to Helena. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Helena. Reviews last updated January 15, 2026.
Read through reviews of airlines operating flights from Washington, D.C. to Helena, such as United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,164 reviews

Food

6.6

Boarding

7.7

Overall

7.4

Crew

8.1

Comfort

7.3

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,164 reviews
United Airlines
7.4
Good
9,164 reviews

Food

6.6

Boarding

7.7

Overall

7.4

Crew

8.1

Comfort

7.3

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. to Helena. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Helena from Washington, D.C.?

    For a flight from Washington, D.C. to Helena, you will be flying into Helena. Helena (HLN) is just 2.7 mi from the center of the city. Helena is the only Helena airport and it handles 0 inbound flights from Washington, D.C. per day. 1 airline has flights to Helena from Washington, D.C. on a regular basis.

  • How long is the flight from Washington, D.C. to Helena?

    For as low as $334, United Airlines can have you in Helena from Washington, D.C. in 7h 16m. Airlines will cover a distance of 1842 mi. This flight may include one or multiple stops.

  • What are the most popular routes from Washington, D.C. to Helena?

    The most popular flight routes from Washington, D.C. to Helena are Washington, D.C. Dulles Intl - Helena, Baltimore/Washington - Helena and Washington, D.C. Reagan-National - Helena.

  • Can I find deals for flights from Washington, D.C. to Helena that include hotel bookings?

    Yes. In addition to deals on Washington, D.C. to Helena flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Washington, D.C. to Helena?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to Helena.

  • Can I find deals for business class flights from Washington, D.C. to Helena?

    Yes. Cheapflights offers flight deals from Washington, D.C. to Helena by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, June is the cheapest month in which you can book a flight from Washington, D.C. to Helena (average of $176). Flying from Washington, D.C. to Helena in March is currently the most expensive (average of $321). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top airline flying from Washington, D.C. to Helena

Discover the top airline that operate flights from Washington, D.C. to Helena. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 15, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$412Average$674FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.