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District of Columbia

$268+ Cheap flights from Helena (HLN) to District of Columbia

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 1/4. Fares are subject to change and may not be available on all flights or dates of travel.
HLN — IAD
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
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Cheap flight deals from Helena to District of Columbia

Keep the following information in mind while searching for Helena to District of Columbia flight deals. Data was last updated September 16, 2025.

Round-trip from

$432
(Alaska Airlines)

One-way from

$268
(Alaska Airlines)

Popular in

November

Cheapest in

July

Average price

$898
From Helena to District of Columbia
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One-way flight from Helena to District of Columbia
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Highest demand for flights based on searches. 26% potential increase in price ($246 potential increase over avg. RT price).
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Cheapest flight prices on average. 14% potential price decrease ($87 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Helena to District of Columbia

Cheapest flights from Helena to District of Columbia
Explore the most affordable flight options available from Helena to District of Columbia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.

This Alaska Airlines deal was found by Cheapflights users on 9/13. 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.
Wed 12/106:28 pmHLN - DCA
1 stop19h 40mAlaska Airlines
Sat 12/135:00 pmDCA - HLN
1 stop26h 51mAlaska Airlines
Deal found 9/13$432
This Alaska Airlines deal was found by Cheapflights users on 9/16. 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 10/176:18 pmHLN - DCA
1 stop25h 41mAlaska Airlines
Wed 10/228:00 amDCA - HLN
1 stop11h 41mAlaska Airlines
Deal found 9/16$477
This Alaska Airlines deal was found by Cheapflights users on 9/14. 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.
Mon 12/86:28 pmHLN - DCA
2 stops24h 34mAlaska Airlines
Fri 12/128:59 amDCA - HLN
2 stops34h 52mAlaska Airlines
Deal found 9/14$483
This Delta deal was found by Cheapflights users on 9/15. 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 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 9/15$491
This Delta deal was found by Cheapflights users on 9/14. 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.
Wed 12/105:30 amHLN - DCA
2 stops10h 33mDelta
Sat 12/133:06 pmDCA - HLN
2 stops23h 20mDelta
Deal found 9/14$494
This United Airlines deal was found by Cheapflights users on 9/14. 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 12/106:30 amHLN - IAD
1 stop8h 00mUnited Airlines
Sat 12/132:30 pmIAD - HLN
1 stop8h 52mUnited Airlines
Deal found 9/14$503
This Alaska Airlines deal was found by Cheapflights users on 9/16. 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 11/196:13 pmHLN - IAD
1 stop10h 10mAlaska Airlines
Fri 11/287:38 amIAD - HLN
1 stop13h 14mAlaska Airlines
Deal found 9/16$540
This Alaska Airlines deal was found by Cheapflights users on 9/16. 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 10/206:18 pmHLN - DCA
2 stops24h 56mAlaska Airlines
Wed 10/228:00 amDCA - HLN
1 stop11h 41mAlaska Airlines
Deal found 9/16$545
This Delta deal was found by Cheapflights users on 9/14. 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.
Wed 12/105:30 amHLN - IAD
2 stops10h 42mDelta
Sat 12/137:05 amIAD - HLN
1 stop7h 21mDelta
Deal found 9/14$551
This Alaska Airlines deal was found by Cheapflights users on 9/15. 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.
Thu 10/306:13 pmHLN - IAD
2 stops21h 00mAlaska Airlines
Thu 11/65:40 pmIAD - HLN
2 stops25h 56mAlaska Airlines
Deal found 9/15$553
This Delta deal was found by Cheapflights users on 9/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/301:00 pmHLN - IAD
1 stop8h 33mDelta
Thu 11/66:15 amIAD - HLN
1 stop8h 05mDelta
Deal found 9/15$559
This Alaska Airlines deal was found by Cheapflights users on 9/13. 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 11/227:32 pmHLN - IAD
1 stop8h 46mAlaska Airlines
Fri 11/287:38 amIAD - HLN
1 stop13h 14mAlaska Airlines
Deal found 9/13$573

Cheapflights Fare Finder

 
Customize your flight search to find flights from Helena to District of Columbia 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 September 16, 2025.
Use the filters below to find and compare flights from Helena to District of Columbia that are best for you.

Fly from

Helena

Fly to

District of Columbia

Route

Depart

Return

Price

HelenaWashington, D.C.

HLN - DCA

HLNDCA

Helena

Wed 12/10

6:28 pm-4:08 pm

1 stop19h 40m

Washington, D.C. Reagan-National

Sat 12/13

5:00 pm-5:51 pm

1 stop26h 51m

$432

HelenaWashington, D.C.

HLN - DCA

HLNDCA

Helena

Fri 10/17

6:18 pm-9:59 pm

1 stop25h 41m

Washington, D.C. Reagan-National

Wed 10/22

8:00 am-5:41 pm

1 stop11h 41m

$477

HelenaWashington, D.C.

HLN - DCA

HLNDCA

Helena

Mon 12/8

6:28 pm-9:02 pm

2 stops24h 34m

Washington, D.C. Reagan-National

Fri 12/12

8:59 am-5:51 pm

2 stops34h 52m

$483

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

$491

HelenaWashington, D.C.

HLN - DCA

HLNDCA

Helena

Wed 12/10

5:30 am-6:03 pm

2 stops10h 33m

Washington, D.C. Reagan-National

Sat 12/13

3:06 pm-12:26 pm

2 stops23h 20m

$494

HelenaWashington, D.C.

HLN - IAD

HLNIAD

Helena

Wed 12/10

2:30 pm-11:15 pm

1 stop6h 45m

Washington, D.C. Dulles Intl

Sat 12/13

4:00 pm-9:22 pm

1 stop7h 22m

$503

HelenaWashington, D.C.

HLN - IAD

HLNIAD

Helena

Wed 11/19

6:13 pm-6:23 am

1 stop10h 10m

Washington, D.C. Dulles Intl

Fri 11/28

7:38 am-6:52 pm

1 stop13h 14m

$540

HelenaWashington, D.C.

HLN - IAD

HLNIAD

Helena

Wed 12/10

5:30 am-6:12 pm

2 stops10h 42m

Washington, D.C. Dulles Intl

Sat 12/13

7:05 am-12:26 pm

1 stop7h 21m

$551

HelenaWashington, D.C.

HLN - IAD

HLNIAD

Helena

Thu 10/30

6:13 pm-5:13 pm

2 stops21h 00m

Washington, D.C. Dulles Intl

Thu 11/6

5:40 pm-5:36 pm

2 stops25h 56m

$553

HelenaWashington, D.C.

HLN - DCA

HLNDCA

Helena

Mon 10/20

6:18 pm-9:14 pm

2 stops24h 56m

Washington, D.C. Reagan-National

Wed 10/22

6:59 pm-5:41 pm

2 stops24h 42m

$553

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 27 results
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Best time to book a flight from Helena to District of Columbia

Have a flexible travel schedule? Discover the best time to fly to District of Columbia 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 District of Columbia

What is the cheapest month to book a flight from Helena to District of Columbia?

Currently, August is the cheapest month in which you can book a flight from Helena to District of Columbia (average of $292). Flying from Helena to District of Columbia in April is currently the most expensive (average of $337). 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 DC?

Find hourly flight availability from Helena to District of Columbia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 16, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Helena to District of Columbia as you normally would.

Reviews of airlines servicing District of Columbia

Get insights into the airlines that provide service to District of Columbia. 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 District of Columbia. Reviews last updated September 16, 2025.
See what other customers who have flown with United Airlines from Helena to District of Columbia have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,924 reviews

Boarding

7.7

Food

6.6

Comfort

7.3

Entertainment

7.1

Overall

7.4

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
United Airlines
7.4
Good
8,924 reviews
United Airlines
7.4
Good
8,924 reviews

Boarding

7.7

Food

6.6

Comfort

7.3

Entertainment

7.1

Overall

7.4

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

Related info for your journey

Find useful and relevant information for your journey from Helena to District of Columbia. 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 District of Columbia?

    If you book a flight to District of Columbia from Helena, you will be flying from Helena, which is the city’s only airport. Helena (HLN) is located 2.7 mi from the center of Helena.

  • How long is the flight from Helena to District of Columbia?

    Departing from Helena to District of Columbia will take you 6h 45m. The distance between Helena and District of Columbia is about 1812 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 District of Columbia one-way?

    The cheapest airlines for a one-way flight from Helena to District of Columbia are Alaska Airlines ($268), Delta ($349), and United Airlines ($369).

  • Can I find deals for flights from Helena to District of Columbia that include hotel bookings?

    Yes. In addition to deals on Helena to District of Columbia flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Helena to District of Columbia?

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

  • Can I find deals for business class flights from Helena to District of Columbia?

    Yes. Cheapflights offers flight deals from Helena to District of Columbia 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 District of Columbia?

    Currently, August is the cheapest month in which you can book a flight from Helena to District of Columbia (average of $292). Flying from Helena to District of Columbia in April is currently the most expensive (average of $337). 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

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Top airline flying from Helena to District of Columbia

Discover the top airline that operate flights from Helena to District of Columbia. 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 September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$344Average$434FlexibilityNo cancel feeOn-time69%

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