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Helena

$195+ Cheap flights from Dulles Intl (IAD) 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 1/24. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — HLN
Jan 7 — Jan 141
Wed 1/7
Wed 1/14
1 adult, Economy
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Cheap flight deals from Dulles Intl to Helena

Cheapest flights from Dulles Intl to Helena
Explore the most affordable flight options available from Dulles Intl to Helena. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 8, 2025.

This Delta deal was found by Cheapflights users on 12/5. 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.
Fri 12/127:05 amIAD - HLN
1 stop7h 20mDelta
Fri 12/191:06 pmHLN - IAD
1 stop8h 23mDelta
Deal found 12/5$618
This Delta deal was found by Cheapflights users on 12/5. 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.
Sat 12/1312:30 pmIAD - HLN
2 stops12h 00mDelta
Fri 12/191:06 pmHLN - IAD
1 stop8h 23mDelta
Deal found 12/5$623
This KAYAK deal was found by Cheapflights users on 12/7. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/157:05 amIAD - HLN
1 stop7h 20mDelta
Fri 12/191:06 pmHLN - IAD
1 stop8h 23mDelta
Deal found 12/7$644
This United Airlines deal was found by Cheapflights users on 12/7. 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 12/178:17 amIAD - HLN
1 stop7h 30mUnited Airlines
Thu 1/16:10 amHLN - IAD
1 stop7h 24mUnited Airlines
Deal found 12/7$645
This Delta deal was found by Cheapflights users on 12/5. 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.
Fri 12/127:05 amIAD - HLN
1 stop7h 20mDelta
Thu 12/181:06 pmHLN - IAD
1 stop8h 23mDelta
Deal found 12/5$667
This Delta deal was found by Cheapflights users on 12/5. 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.
Fri 12/127:05 amIAD - HLN
1 stop7h 20mDelta
Tue 12/165:30 amHLN - IAD
2 stops10h 42mDelta
Deal found 12/5$672
This Delta deal was found by Cheapflights users on 12/5. 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.
Sat 12/1312:30 pmIAD - HLN
2 stops12h 00mDelta
Mon 12/151:06 pmHLN - IAD
2 stops9h 06mDelta
Deal found 12/5$677
This United Airlines deal was found by Cheapflights users on 12/7. 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 12/258:20 amIAD - HLN
1 stop7h 25mUnited Airlines
Wed 12/312:26 pmHLN - IAD
1 stop6h 57mUnited Airlines
Deal found 12/7$693
This Delta deal was found by Cheapflights users on 12/5. 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.
Sun 12/147:59 pmIAD - HLN
2 stops18h 26mDelta
Fri 12/191:06 pmHLN - IAD
1 stop8h 23mDelta
Deal found 12/5$705
This United Airlines deal was found by Cheapflights users on 12/5. 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.
Fri 12/196:20 amIAD - HLN
1 stop9h 25mUnited Airlines
Tue 12/232:26 pmHLN - IAD
1 stop6h 57mUnited Airlines
Deal found 12/5$708

Find flight deals from Dulles Intl to Helena

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) 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 December 8, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$375
(Alaska Airlines)

One-way from

$195
(United Airlines)
Provider with most accurate pricing for Washington, D.C. Dulles Intl-Helena flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Helena flights.
Search Deals
From Washington, D.C. Dulles Intl to Helena
Search Deals
One-way flight from Washington, D.C. Dulles Intl to Helena
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl 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 December 8, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Helena that are best for you.

Fly from

Dulles Intl

Fly to

Helena

Route

Depart

Return

Price

Washington, D.C.Helena

IAD - HLN

IADHLN

Washington, D.C. Dulles Intl

Sat 1/31

6:04 pm-6:11 pm

1 stop26h 07m

Helena

Wed 2/4

6:48 pm-4:26 pm

1 stop19h 38m

$375

Washington, D.C.Helena

IAD - HLN

IADHLN

Washington, D.C. Dulles Intl

Fri 2/6

6:04 pm-6:11 pm

1 stop26h 07m

Helena

Mon 2/9

6:48 pm-4:26 pm

1 stop19h 38m

$412

Washington, D.C.Helena

IAD - HLN

IADHLN

Washington, D.C. Dulles Intl

Wed 1/14

2:24 pm-9:26 pm

1 stop9h 02m

Helena

Fri 1/16

6:15 am-3:12 pm

1 stop6h 57m

$438

Washington, D.C.Helena

IAD - HLN

IADHLN

Washington, D.C. Dulles Intl

Mon 1/5

6:43 pm-5:55 pm

1 stop25h 12m

Helena

Mon 1/12

6:48 pm-4:26 pm

1 stop19h 38m

$477

Washington, D.C.Helena

IAD - HLN

IADHLN

Washington, D.C. Dulles Intl

Fri 3/6

7:05 am-3:59 pm

1 stop10h 54m

Helena

Tue 3/10

4:36 pm-5:20 pm

1 stop22h 44m

$497

Washington, D.C.Helena

IAD - HLN

IADHLN

Washington, D.C. Dulles Intl

Sat 1/24

2:24 pm-9:26 pm

1 stop9h 02m

$195

Washington, D.C.Helena

IAD - HLN

IADHLN

Washington, D.C. Dulles Intl

Sat 1/24

6:00 am-6:11 pm

2 stops14h 11m

$250

Washington, D.C.Helena

IAD - HLN

IADHLN

Washington, D.C. Dulles Intl

Thu 1/15

6:04 pm-6:11 pm

1 stop26h 07m

$277

Washington, D.C.Helena

IAD - HLN

IADHLN

Washington, D.C. Dulles Intl

Thu 1/15

6:00 am-9:26 pm

3 stops17h 26m

$1,279

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/8

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

Have a flexible travel schedule? Discover the best time to fly to Helena from Dulles Intl 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. Dulles Intl Airport to Helena

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

Currently, September is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Helena (average of $198). Flying from Washington, D.C. Dulles Intl Airport to Helena in March is currently the most expensive (average of $374). 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.

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 December 8, 2025.
Read reviews from past customers who have flown United Airlines from Washington, D.C. Dulles Intl Airport to Helena. 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
9,076 reviews

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Overall

7.4

Food

6.6

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.
United Airlines
7.4
Good
9,076 reviews
United Airlines
7.4
Good
9,076 reviews

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Overall

7.4

Food

6.6

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl 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. Dulles Intl?

    Most people fly into Helena (HLN) if they book a flight to Helena from Washington, D.C. Dulles Intl. On average, Helena has 0 inbound flights from Washington, D.C. Dulles Intl per day from 1 airline. Helena is conveniently located just 2.7 mi from Helena’s city center.

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

    For as low as $438, Alaska Airlines can have you in Helena from Washington, D.C. Dulles Intl Airport in 9h 02m. There are 1812 mi between Washington, D.C. Dulles Intl Airport and Helena. Both multi-stop and nonstop flights can be found to your destination and back.

  • What is the cheapest airline to fly from Washington, D.C. Dulles Intl Airport to Helena round-trip?

    Cheapflights users have booked flights from Washington, D.C. Dulles Intl Airport to Helena round-trip from $412.

  • Can I find deals for flights from Dulles Intl to Helena that include hotel bookings?

    Yes. In addition to deals on Dulles Intl to Helena flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Dulles Intl to Helena?

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

  • Can I find deals for business class flights from Dulles Intl to Helena?

    Yes. Cheapflights offers flight deals from Dulles Intl 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. Dulles Intl Airport to Helena?

    Currently, September is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Helena (average of $198). Flying from Washington, D.C. Dulles Intl Airport to Helena in March is currently the most expensive (average of $374). 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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Alternative routes for Dulles Intl to Helena

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Top airline flying from Dulles Intl to Helena

Discover the top airline that operate flights from Dulles Intl 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 December 8, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$412Average$549FlexibilityNo cancel feeOn-time69%

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