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$627+ Cheap flights from Helena (HLN) to Dublin (DUB)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/23. Fares are subject to change and may not be available on all flights or dates of travel.
HLN — DUB
Apr 13 — Apr 201
Mon 4/13
Mon 4/20
1 adult, Economy
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Cheap flight deals from Helena to Dublin

Cheapest flights from Helena to Dublin
Explore the most affordable flight options available from Helena to Dublin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 14, 2026.

This United Airlines deal was found by Cheapflights users on 3/12. 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.
Sun 8/236:15 am
HLN
-
DUB
2 stops21h 25m
United Airlines
Thu 8/279:20 am
DUB
-
HLN
2 stops42h 56m
United Airlines
Deal found 3/12$627
This United Airlines deal was found by Cheapflights users on 3/12. 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 8/266:15 am
HLN
-
DUB
2 stops18h 30m
United Airlines
Mon 8/319:50 am
DUB
-
HLN
2 stops42h 26m
United Airlines
Deal found 3/12$671
This United Airlines deal was found by Cheapflights users on 3/10. 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 8/266:15 am
HLN
-
DUB
2 stops18h 30m
United Airlines
Tue 9/111:35 am
DUB
-
HLN
2 stops16h 41m
United Airlines
Deal found 3/10$687
This Air France deal was found by Cheapflights users on 3/10. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1112:50 pm
HLN
-
DUB
2 stops26h 50m
Multiple Airlines
Thu 8/275:55 am
DUB
-
HLN
2 stops23h 39m
Multiple Airlines
Deal found 3/10$788
This United Airlines deal was found by Cheapflights users on 3/11. 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 5/196:15 am
HLN
-
DUB
2 stops18h 05m
United Airlines
Tue 5/268:50 am
DUB
-
HLN
2 stops19h 30m
United Airlines
Deal found 3/11$808
This United Airlines deal was found by Cheapflights users on 3/11. 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 5/162:30 pm
HLN
-
DUB
2 stops34h 15m
United Airlines
Tue 5/269:30 am
DUB
-
HLN
2 stops18h 50m
United Airlines
Deal found 3/11$817

Find flight deals from Helena to Dublin

Discover tips and strategies to find the most affordable flight options for your journey from Helena (HLN) to Dublin (DUB). 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 March 14, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$627
(United Airlines)
Provider with most accurate pricing for Helena-Dublin flight deals.
Search Deals
Provider most trusted by Cheapflights users for Helena-Dublin flights.
Search Deals
From Helena to Dublin
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Helena to Dublin 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 14, 2026.
Use the filters below to find and compare flights from Helena to Dublin that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

HelenaDublin

HLN - DUB

HLNDUB

Helena

Sun 8/23

6:15 am-7:20 am

2 stops18h 05m

Dublin

Thu 8/27

9:20 am-1:32 pm

2 stops35h 12m

$627

HelenaDublin

HLN - DUB

HLNDUB

Helena

Wed 8/26

6:15 am-7:45 am

2 stops18h 30m

Dublin

Mon 8/31

9:50 am-9:16 pm

2 stops42h 26m

$671
Quickest round-trip

HelenaDublin

HLN - DUB

HLNDUB

Helena

Wed 8/26

6:15 am-7:45 am

2 stops18h 30m

Dublin

Tue 9/1

11:35 am-9:16 pm

2 stops16h 41m

$707

HelenaDublin

HLN - DUB

HLNDUB

Helena

Tue 8/11

12:50 pm-10:40 pm

2 stops26h 50m

Dublin

Thu 8/27

5:55 am-10:34 pm

2 stops23h 39m

$788

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/10

Sorted by cheapest first

Compare providers for flights from Helena to Dublin

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 Dublin in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 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-Dublin flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Helena-Dublin flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Helena-Dublin flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Helena-Dublin 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-Dublin 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 Dublin

Have a flexible travel schedule? Discover the best time to fly to Dublin 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 Dublin

What is the cheapest month to book a flight from Helena to Dublin?

Currently, August is the cheapest month in which you can book a flight from Helena to Dublin (average of $413). Flying from Helena to Dublin in June is currently the most expensive (average of $882). 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 Dublin

Get insights into the airlines that provide service to Dublin. 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 Dublin. Reviews last updated March 14, 2026.
Read reviews from past customers who have flown United Airlines from Helena to Dublin. 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
9,423 reviews

Entertainment

7.1

Boarding

7.7

Food

6.6

Comfort

7.3

Crew

8.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,423 reviews
United Airlines
7.4
Good
9,423 reviews

Entertainment

7.1

Boarding

7.7

Food

6.6

Comfort

7.3

Crew

8.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Related info for your journey

Find useful and relevant information for your journey from Helena to Dublin. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Helena to Dublin?

    Airlines like United Airlines fly from Helena to Dublin in about 21h 25m. The time it takes to get you to your destination can typically vary by up to . There are 4267 mi between Helena and Dublin.

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

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

  • How can I find direct flights from Helena to Dublin?

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

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

    Yes. Cheapflights offers flight deals from Helena to Dublin 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 Dublin?

    Currently, August is the cheapest month in which you can book a flight from Helena to Dublin (average of $413). Flying from Helena to Dublin in June is currently the most expensive (average of $882). 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 Dublin?

Book flights to Dublin if you plan to visit one of these locations
Maynooth
Castleknock
Leixlip

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Alternative routes for Helena to Dublin

See prices for flight routes from nearby airports that may be better suited for you.
Bozeman to Dublin flights
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Top airline flying from Helena to Dublin

Discover the top airline that operate flights from Helena to Dublin. 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 14, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$487Average$616FlexibilityNo cancel feeOn-time69%

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