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District of Columbia

$197+ 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 5/12. Fares are subject to change and may not be available on all flights or dates of travel.
HLN — IAD
Mar 30 — Apr 61
Sun 3/30
Sun 4/6
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 March 25, 2025.

Round-trip from

$465
(United Airlines)

One-way from

$197
(Hawaiian Airlines)

Popular in

November

Cheapest in

May

Average price

$697
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. 25% potential increase in price ($254 potential increase over avg. RT price).
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Cheapest flight prices on average. 9% potential price decrease ($64 potential savings vs. average RT price).
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Average for round-trip flights in March 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 March 25, 2025.

This United Airlines deal was found by Cheapflights users on 3/22. 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.
Tue 9/162:04 pmHLN - IAD
1 stop6h 39mUnited Airlines
Sun 9/218:15 amIAD - HLN
1 stop6h 58mUnited Airlines
Deal found 3/22$465
This Alaska Airlines deal was found by Cheapflights users on 3/23. 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 4/247:29 pmHLN - IAD
1 stop26h 54mAlaska Airlines
Mon 4/287:13 pmIAD - HLN
1 stop25h 36mAlaska Airlines
Deal found 3/23$472
This Alaska Airlines deal was found by Cheapflights users on 3/23. 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 4/247:29 pmHLN - DCA
2 stops23h 29mAlaska Airlines
Mon 4/286:35 pmDCA - HLN
2 stops26h 14mAlaska Airlines
Deal found 3/23$522
This Delta deal was found by Cheapflights users on 3/24. 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.
Tue 4/85:45 amHLN - DCA
1 stop8h 15mDelta
Tue 4/156:00 amDCA - HLN
2 stops8h 38mDelta
Deal found 3/24$527
This Delta deal was found by Cheapflights users on 3/24. 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.
Tue 4/81:15 pmHLN - IAD
1 stop8h 35mDelta
Tue 4/157:35 amIAD - HLN
1 stop7h 03mDelta
Deal found 3/24$551
This United deal was found by Cheapflights users on 3/24. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/82:12 pmHLN - DCA
1 stop22h 49mUnited Airlines
Tue 4/154:15 pmDCA - HLN
1 stop7h 10mUnited Airlines
Deal found 3/24$563
This United deal was found by Cheapflights users on 3/23. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/316:25 amHLN - DCA
1 stop6h 40mMultiple Airlines
Sun 6/18:00 amDCA - HLN
1 stop9h 31mMultiple Airlines
Deal found 3/23$798

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 March 25, 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 - IAD

HLNIAD

Helena

Tue 9/16

2:04 pm-10:43 pm

1 stop6h 39m

Washington, D.C. Dulles Intl

Sun 9/21

8:15 am-1:13 pm

1 stop6h 58m

$465

HelenaWashington, D.C.

HLN - IAD

HLNIAD

Helena

Thu 4/24

7:29 pm-12:23 am

1 stop26h 54m

Washington, D.C. Dulles Intl

Mon 4/28

7:13 pm-6:49 pm

1 stop25h 36m

$472

HelenaWashington, D.C.

HLN - DCA

HLNDCA

Helena

Thu 4/24

7:29 pm-8:58 pm

2 stops23h 29m

Washington, D.C. Reagan-National

Mon 4/28

6:35 pm-6:49 pm

2 stops26h 14m

$522

HelenaWashington, D.C.

HLN - DCA

HLNDCA

Helena

Tue 4/8

5:45 am-4:00 pm

1 stop8h 15m

Washington, D.C. Reagan-National

Tue 4/15

6:00 am-12:38 pm

2 stops8h 38m

$527

HelenaWashington, D.C.

HLN - IAD

HLNIAD

Helena

Tue 4/8

1:15 pm-11:50 pm

1 stop8h 35m

Washington, D.C. Dulles Intl

Tue 4/15

7:35 am-12:38 pm

1 stop7h 03m

$551

HelenaWashington, D.C.

HLN - DCA

HLNDCA

Helena

Tue 4/8

2:12 pm-3:01 pm

1 stop22h 49m

Washington, D.C. Reagan-National

Tue 4/15

4:15 pm-9:25 pm

1 stop7h 10m

$563

HelenaWashington, D.C.

HLN - DCA

HLNDCA

Helena

Sat 5/31

6:25 am-3:05 pm

1 stop6h 40m

Washington, D.C. Reagan-National

Sun 6/1

8:00 am-3:31 pm

1 stop9h 31m

$798

HelenaWashington, D.C.

HLN - IAD

HLNIAD

Helena

Mon 5/12

7:29 pm-7:43 am

1 stop10h 14m

$197

HelenaWashington, D.C.

HLN - IAD

HLNIAD

Helena

Sat 6/14

1:18 pm-11:44 pm

1 stop8h 26m

$259

HelenaWashington, D.C.

HLN - IAD

HLNIAD

Helena

Mon 5/12

7:29 pm-4:00 pm

2 stops18h 31m

$286

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/24

Showing 1-10 of 13 results
1
2

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 $309). Flying from Helena to District of Columbia in June is currently the most expensive (average of $387). 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 March 25, 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.

Rainfall in District of Columbia by month

Plan your trip to District of Columbia by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in District of Columbia ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit District of Columbia when rainfall is around 2.6 in.

Temperature in District of Columbia by month

Plan your trip to District of Columbia by taking into account the average temperature totals by month.

If weather is an important factor for your trip to District of Columbia, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

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 March 25, 2025.
Read through reviews of airlines operating flights from Helena to District of Columbia, such as Alaska Airlines, Delta and Hawaiian Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,782 reviews

Boarding

8.2

Overall

8.0

Crew

8.5

Food

7.1

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Alaska Airlines
8.0
Very good
9,782 reviews
Alaska Airlines
8.0
Very good
9,782 reviews

Boarding

8.2

Overall

8.0

Crew

8.5

Food

7.1

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Delta
8.0
Very good
7,890 reviews
Alaska Airlines
8.0
Very good
9,782 reviews

Boarding

8.2

Overall

8.0

Crew

8.5

Food

7.1

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Hawaiian Airlines
7.9
Good
2,330 reviews
Alaska Airlines
8.0
Very good
9,782 reviews

Boarding

8.2

Overall

8.0

Crew

8.5

Food

7.1

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
United Airlines
7.4
Good
8,605 reviews
Alaska Airlines
8.0
Very good
9,782 reviews

Boarding

8.2

Overall

8.0

Crew

8.5

Food

7.1

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

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.

  • 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 Hawaiian Airlines ($197), Delta ($259), and Alaska Airlines ($286).

  • 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 $309). Flying from Helena to District of Columbia in June is currently the most expensive (average of $387). 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 2 airlines flying from Helena to District of Columbia

Discover the top 2 airlines 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 March 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$344Average$585FlexibilityNo cancel feeOn-time69%
DeltaCheapest$468Average$873FlexibilityNo cancel feeOn-timeN/A
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