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Washington, D.C.

$207+ Cheap flights from Helena (HLN) to Washington, D.C. (WAS)

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 11/1. Fares are subject to change and may not be available on all flights or dates of travel.
HLN — WAS
Nov 6 — Nov 131
Thu 11/6
Thu 11/13
1 adult, Economy
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Find flight deals from Helena to Washington, D.C.

Cheapest flights from Helena to Washington, D.C.
Explore the most affordable flight options available from Helena to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 7, 2025.

This Alaska Airlines deal was found by Cheapflights users on 10/6. 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.
Wed 12/106:28 pmHLN - DCA
1 stop25h 31mAlaska Airlines
Sat 12/135:00 pmDCA - HLN
1 stop26h 51mAlaska Airlines
Deal found 10/6$364
This Alaska Airlines deal was found by Cheapflights users on 10/6. 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.
Wed 12/106:28 pmHLN - IAD
1 stop20h 08mAlaska Airlines
Sat 12/137:34 amIAD - HLN
1 stop12h 17mAlaska Airlines
Deal found 10/6$414
This Alaska Airlines deal was found by Cheapflights users on 10/6. 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.
Mon 11/176:13 pmHLN - IAD
2 stops21h 00mAlaska Airlines
Fri 11/217:38 amIAD - HLN
1 stop13h 14mAlaska Airlines
Deal found 10/6$486
This Delta deal was found by Cheapflights users on 10/6. 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.
Wed 12/101:06 pmHLN - IAD
2 stops9h 07mDelta
Sat 12/137:05 amIAD - HLN
1 stop7h 20mDelta
Deal found 10/6$511
This Delta deal was found by Cheapflights users on 10/4. 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.
Wed 12/105:30 amHLN - DCA
2 stops11h 29mDelta
Sat 12/138:00 amDCA - HLN
2 stops16h 30mDelta
Deal found 10/4$530
This Alaska Airlines deal was found by Cheapflights users on 10/6. 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.
Thu 11/66:13 pmHLN - IAD
1 stop10h 10mAlaska Airlines
Sun 11/97:43 amIAD - HLN
1 stop11h 53mAlaska Airlines
Deal found 10/6$536
This Alaska Airlines deal was found by Cheapflights users on 10/6. 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.
Thu 11/66:13 pmHLN - BWI
1 stop10h 05mAlaska Airlines
Sun 11/97:38 amBWI - HLN
1 stop11h 58mAlaska Airlines
Deal found 10/6$537
This Delta deal was found by Cheapflights users on 10/6. 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.
Mon 11/171:06 pmHLN - BWI
2 stops9h 20mDelta
Fri 11/217:15 amBWI - HLN
1 stop7h 11mDelta
Deal found 10/6$538
This United Airlines deal was found by Cheapflights users on 10/6. 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.
Mon 11/172:22 pmHLN - BWI
1 stop6h 35mUnited Airlines
Fri 11/218:15 amBWI - HLN
1 stop7h 12mUnited Airlines
Deal found 10/6$541
This Delta deal was found by Cheapflights users on 10/5. 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.
Thu 11/61:00 pmHLN - IAD
1 stop8h 33mDelta
Sun 11/97:10 amIAD - HLN
1 stop7h 16mDelta
Deal found 10/5$559
This United Airlines deal was found by Cheapflights users on 10/5. 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 11/66:40 amHLN - BWI
1 stop14h 17mUnited Airlines
Sun 11/98:15 amBWI - HLN
1 stop7h 12mUnited Airlines
Deal found 10/5$584
This United Airlines deal was found by Cheapflights users on 10/6. 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 11/262:22 pmHLN - BWI
1 stop6h 35mUnited Airlines
Fri 11/288:15 amBWI - HLN
1 stop7h 12mUnited Airlines
Deal found 10/6$595

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

Discover tips and strategies to find the most affordable flight options for your journey from Helena (HLN) to Washington, D.C. (WAS). 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 October 7, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$364
(Alaska Airlines)

One-way from

$207
(Delta)
Provider with most accurate pricing for Helena-Washington, D.C. (WAS) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Helena-Washington, D.C. (WAS) flights.
Search Deals
From Helena to Washington, D.C. (WAS)
Search Deals
One-way flight from Helena to Washington, D.C. (WAS)
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Helena to Washington, D.C. 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 October 7, 2025.
Use the filters below to find and compare flights from Helena to Washington, D.C. that are best for you.

Fly from

Helena

Fly to

Washington, D.C.

Route

Depart

Return

Price

HelenaWashington, D.C.

HLN - DCA

HLNDCA

Helena

Wed 12/10

6:28 pm-9:59 pm

1 stop25h 31m

Washington, D.C. Reagan-National

Sat 12/13

5:00 pm-5:51 pm

1 stop26h 51m

$364

HelenaWashington, D.C.

HLN - IAD

HLNIAD

Helena

Wed 12/10

6:28 pm-4:36 pm

1 stop20h 08m

Washington, D.C. Dulles Intl

Sat 12/13

7:34 am-5:51 pm

1 stop12h 17m

$414

HelenaBaltimore

HLN - BWI

HLNBWI

Helena

Fri 3/6

12:50 pm-11:42 pm

1 stop8h 52m

Baltimore/Washington

Tue 3/10

7:10 am-12:27 pm

1 stop7h 17m

$475

HelenaWashington, D.C.

HLN - IAD

HLNIAD

Helena

Wed 12/10

1:06 pm-12:13 am

2 stops9h 07m

Washington, D.C. Dulles Intl

Sat 12/13

7:05 am-12:25 pm

1 stop7h 20m

$511

HelenaWashington, D.C.

HLN - DCA

HLNDCA

Helena

Wed 12/10

5:30 am-6:59 pm

2 stops11h 29m

Washington, D.C. Reagan-National

Sat 12/13

8:00 am-10:30 pm

2 stops16h 30m

$530

HelenaWashington, D.C.

HLN - IAD

HLNIAD

Helena

Thu 11/6

6:13 pm-6:23 am

1 stop10h 10m

Washington, D.C. Dulles Intl

Sun 11/9

7:43 am-5:36 pm

1 stop11h 53m

$536

HelenaBaltimore

HLN - BWI

HLNBWI

Helena

Mon 11/17

1:06 pm-12:26 am

2 stops9h 20m

Baltimore/Washington

Fri 11/21

7:15 am-12:26 pm

1 stop7h 11m

$538

HelenaWashington, D.C.

HLN - IAD

HLNIAD

Helena

Thu 11/6

1:00 pm-11:33 pm

1 stop8h 33m

Washington, D.C. Dulles Intl

Sun 11/9

7:10 am-12:26 pm

1 stop7h 16m

$559

HelenaBaltimore

HLN - BWI

HLNBWI

Helena

Thu 11/6

6:40 am-10:57 pm

1 stop14h 17m

Baltimore/Washington

Sun 11/9

8:15 am-1:27 pm

1 stop7h 12m

$584

HelenaBaltimore

HLN - BWI

HLNBWI

Helena

Wed 11/26

2:22 pm-10:57 pm

1 stop6h 35m

Baltimore/Washington

Fri 11/28

8:15 am-1:27 pm

1 stop7h 12m

$595

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/6

Showing 1-10 of 27 results
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Compare providers for flights from Helena to Washington, D.C.

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 Helena to Washington, D.C. in October.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*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 Helena-Washington, D.C. flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Helena-Washington, D.C. flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Helena-Washington, D.C. flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Helena-Washington, D.C. flights, Cheapflights users trust FlightHub the most. FlightHub 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 Helena-Washington, D.C. 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 Helena to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Helena 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 Helena to Washington, D.C.

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

Currently, April is the cheapest month in which you can book a flight from Helena to Washington, D.C. (average of $169). Flying from Helena to Washington, D.C. in December is currently the most expensive (average of $351). 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.

What is the cheapest time of day to fly from HLN to WAS?

Find hourly flight availability from Helena to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 7, 2025.

A simple way to save on the total cost of your ticket is to fly from Helena to Washington, D.C. in the evening. If you’re flexible enough to do this you can expect to save up to 47% on your trip compared to booking a flight in the morning.

Reviews of airlines servicing Washington, D.C.

Get insights into the airlines that provide service to Washington, D.C.. 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 Washington, D.C.. Reviews last updated October 7, 2025.
See what other customers who have flown with United Airlines from Helena to Washington, D.C. have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,957 reviews

Food

6.6

Boarding

7.7

Crew

8.1

Entertainment

7.1

Comfort

7.3

Overall

7.4

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
United Airlines
7.4
Good
8,957 reviews
United Airlines
7.4
Good
8,957 reviews

Food

6.6

Boarding

7.7

Crew

8.1

Entertainment

7.1

Comfort

7.3

Overall

7.4

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.

Related info for your journey

Find useful and relevant information for your journey from Helena to Washington, D.C.. 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 from for flights from Helena to Washington, D.C.?

    Most people fly from Helena (HLN) if they book a flight from Helena to Washington, D.C.. On average, Helena has 0 outbound flights to Washington, D.C. per day from 0 airlines. Helena is conveniently located just 2.7 mi from Helena’s city center.

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

    Departing from Helena to Washington, D.C. will take you 8h 52m. Airlines will cover a distance of 1842 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Helena to Washington, D.C. one-way?

    The cheapest airline one-way is Delta, with whom users have recently found tickets for as low as $207. However, be on the lookout for offers from Alaska Airlines and United Airlines, as they are both options that can get you from Helena to Washington, D.C. for a low price.

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

    Most travelers choose Helena - Baltimore/Washington, Helena - Washington, D.C. Dulles Intl or Helena - Washington, D.C. Reagan-National when deciding on the best route from Helena to Washington, D.C..

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Helena to Washington, D.C. 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 Helena to Washington, D.C.?

    Currently, April is the cheapest month in which you can book a flight from Helena to Washington, D.C. (average of $169). Flying from Helena to Washington, D.C. in December is currently the most expensive (average of $351). 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

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
Woodbridge
Arlington
Tysons
Silver Spring
Springfield
Hanover
Gaithersburg
Fredericksburg
Fairfax
Linthicum Heights
Falls Church
Owings Mills
Manassas
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Towson
National Harbor
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Rockville

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