HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
District of Columbia

$195+ 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 1/7. Fares are subject to change and may not be available on all flights or dates of travel.
HLN — IAD
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Helena to District of Columbia 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 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 December 18, 2025.

This United Airlines deal was found by Cheapflights users on 12/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:10 amHLN - IAD
1 stop8h 29mUnited Airlines
Tue 1/66:20 amIAD - HLN
1 stop9h 21mUnited Airlines
Deal found 12/16$569
This United Airlines deal was found by Cheapflights users on 12/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:10 amHLN - DCA
1 stop6h 49mUnited Airlines
Tue 1/64:11 pmDCA - HLN
1 stop7h 15mUnited Airlines
Deal found 12/16$594
This Delta deal was found by Cheapflights users on 12/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/265:30 amHLN - DCA
1 stop8h 31mDelta
Tue 1/65:10 pmDCA - HLN
1 stop7h 19mDelta
Deal found 12/16$599
This United Airlines deal was found by Cheapflights users on 12/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:10 amHLN - DCA
1 stop6h 49mUnited Airlines
Sun 1/410:30 amDCA - HLN
2 stops13h 01mUnited Airlines
Deal found 12/16$600
This Delta deal was found by Cheapflights users on 12/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/261:11 pmHLN - IAD
1 stop8h 07mDelta
Tue 1/67:05 amIAD - HLN
1 stop17h 24mDelta
Deal found 12/16$612
This United Airlines deal was found by Cheapflights users on 12/17. 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 12/296:10 amHLN - IAD
1 stop8h 29mUnited Airlines
Sat 1/34:00 pmIAD - HLN
1 stop7h 31mUnited Airlines
Deal found 12/17$618
This United Airlines deal was found by Cheapflights users on 12/17. 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 12/296:10 amHLN - DCA
1 stop6h 49mUnited Airlines
Sat 1/310:30 amDCA - HLN
2 stops13h 01mUnited Airlines
Deal found 12/17$623
This United Airlines deal was found by Cheapflights users on 12/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/276:10 amHLN - DCA
1 stop6h 49mUnited Airlines
Tue 1/64:11 pmDCA - HLN
1 stop7h 15mUnited Airlines
Deal found 12/16$643
This Delta deal was found by Cheapflights users on 12/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/315:30 amHLN - DCA
2 stops25h 42mDelta
Tue 1/65:10 pmDCA - HLN
1 stop7h 19mDelta
Deal found 12/16$648
This Delta deal was found by Cheapflights users on 12/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/271:11 pmHLN - IAD
1 stop8h 07mDelta
Tue 1/67:05 amIAD - HLN
1 stop17h 24mDelta
Deal found 12/16$658
This United Airlines deal was found by Cheapflights users on 12/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:10 amHLN - IAD
1 stop8h 29mUnited Airlines
Sat 1/38:20 amIAD - HLN
1 stop7h 25mUnited Airlines
Deal found 12/16$659
This United Airlines deal was found by Cheapflights users on 12/17. 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 12/316:10 amHLN - DCA
1 stop6h 49mUnited Airlines
Thu 1/14:17 pmDCA - HLN
1 stop7h 14mUnited Airlines
Deal found 12/17$659

Find 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 December 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$354
(Alaska Airlines)

One-way from

$195
(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 District of Columbia
Search Deals
One-way flight from Helena to District of Columbia
Search Deals

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 December 18, 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

Wed 1/21

6:48 pm-4:26 pm

1 stop19h 38m

Washington, D.C. Dulles Intl

Sat 1/24

6:04 pm-6:11 pm

1 stop26h 07m

$354

HelenaWashington, D.C.

HLN - DCA

HLNDCA

Helena

Fri 1/30

6:48 pm-4:09 pm

1 stop19h 21m

Washington, D.C. Reagan-National

Tue 2/3

5:01 pm-6:11 pm

1 stop27h 10m

$364

HelenaWashington, D.C.

HLN - IAD

HLNIAD

Helena

Tue 2/24

4:36 pm-5:20 pm

1 stop22h 44m

Washington, D.C. Dulles Intl

Fri 2/27

6:20 pm-3:59 pm

2 stops23h 39m

$423

HelenaWashington, D.C.

HLN - IAD

HLNIAD

Helena

Sat 1/10

2:27 pm-11:22 pm

1 stop6h 55m

Washington, D.C. Dulles Intl

Sat 1/17

8:15 am-1:41 pm

1 stop7h 26m

$479

HelenaWashington, D.C.

HLN - IAD

HLNIAD

Helena

Sun 2/15

4:36 pm-5:40 am

1 stop11h 04m

Washington, D.C. Dulles Intl

Fri 2/20

7:05 am-3:59 pm

1 stop10h 54m

$486

HelenaWashington, D.C.

HLN - DCA

HLNDCA

Helena

Sun 2/15

6:15 am-2:59 pm

1 stop6h 44m

Washington, D.C. Reagan-National

Fri 2/20

4:11 pm-9:16 pm

1 stop7h 05m

$487

HelenaWashington, D.C.

HLN - DCA

HLNDCA

Helena

Sun 2/15

5:30 am-4:00 pm

1 stop8h 30m

Washington, D.C. Reagan-National

Fri 2/20

12:59 pm-10:27 pm

2 stops11h 28m

$502

HelenaWashington, D.C.

HLN - IAD

HLNIAD

Helena

Mon 2/16

4:36 pm-5:20 pm

1 stop22h 44m

Washington, D.C. Dulles Intl

Fri 2/20

7:05 am-3:59 pm

1 stop10h 54m

$504

HelenaWashington, D.C.

HLN - DCA

HLNDCA

Helena

Mon 2/16

4:36 pm-9:02 pm

2 stops26h 26m

Washington, D.C. Reagan-National

Fri 2/20

5:00 pm-3:59 pm

1 stop24h 59m

$515

HelenaWashington, D.C.

HLN - DCA

HLNDCA

Helena

Tue 3/31

5:30 am-6:51 pm

2 stops11h 21m

Washington, D.C. Reagan-National

Tue 4/7

12:29 pm-10:35 pm

2 stops12h 06m

$523

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/15

Showing 1-10 of 29 results
1
2
3

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, April is the cheapest month in which you can book a flight from Helena to District of Columbia (average of $158). Flying from Helena to District of Columbia in July is currently the most expensive (average of $302). 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 December 18, 2025.

It’s optimal to fly from Helena to District of Columbia in the evening. By choosing this option you can save up to 47% on the cost of your flight, compared to a flight in the morning.

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 December 18, 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
9,091 reviews

Entertainment

7.1

Crew

8.1

Overall

7.4

Boarding

7.7

Food

6.6

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Kevin,Dec 2025

BOS - EWR

Seems like every United flight has a delay and it’s always someone else’s fault. Step up and take some accountability
United Airlines
7.4
Good
9,091 reviews
United Airlines
7.4
Good
9,091 reviews

Entertainment

7.1

Crew

8.1

Overall

7.4

Boarding

7.7

Food

6.6

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Kevin,Dec 2025

BOS - EWR

Seems like every United flight has a delay and it’s always someone else’s fault. Step up and take some accountability

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 44m. The distance between Helena and District of Columbia is about 1835 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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, April is the cheapest month in which you can book a flight from Helena to District of Columbia (average of $158). Flying from Helena to District of Columbia in July is currently the most expensive (average of $302). 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.

Alternative routes for Helena to District of Columbia

See prices for flight routes from nearby airports that may be better suited for you.
Bozeman to Nashville flights
Missoula to Nashville flights
Bozeman to Dallas/Fort Worth flights
Billings to Nashville flights
Bozeman to Denver flights
Bozeman to Las Vegas flights
Helena to Nashville flights
Missoula to Seattle flights
Billings to Dallas/Fort Worth flights
Missoula to Sky Harbor Intl flights
Great Falls to Nashville flights
Bozeman to Minneapolis flights
Bozeman to Newark flights
Missoula to Los Angeles flights
Bozeman to Seattle flights
Bozeman to John F Kennedy Intl flights
Missoula to Dallas/Fort Worth flights
Kalispell to Dallas/Fort Worth flights
Bozeman to Sky Harbor Intl flights
Bozeman to Miami flights
Bozeman to LaGuardia flights
Bozeman to San Francisco flights
Helena to Seattle flights
Bozeman to Los Angeles flights
Bozeman to Orlando flights
Billings to Seattle flights
Butte to Nashville flights
Bozeman to Kahului flights
Bozeman to Atlanta flights
Missoula to Tucson flights
Great Falls to Newark flights
Kalispell to Tampa flights
Bozeman to San Diego flights
Billings to Los Angeles flights
Missoula to Las Vegas flights
Missoula to Portland flights
Great Falls to John F Kennedy Intl flights
Bozeman to Salt Lake City flights
Kalispell to Seattle flights
Missoula to San Antonio flights
Helena to Honolulu flights
Billings to Austin flights
Missoula to Honolulu flights
Kalispell to Nashville flights
Billings to Sky Harbor Intl flights
Helena to Dallas/Fort Worth flights
Kalispell to New Orleans flights
Bozeman to Boston flights
Great Falls to Denver flights
Missoula to Denver flights

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.