How long is the flight from Helena to Dublin?

Airlines like Air France, United Airlines, and Delta fly from Helena to Dublin in about 18h 45m. The time it takes to get you to your destination can typically vary by up to 3h 28m. There are 4267 mi between Helena and Dublin. Both multi-stop and nonstop flights can be found to your destination and back.

In terms of precipitation, rainfall in Dublin ranges from 1.9 - 3.1 inches per month. October is typically the wettest month, when rainfall can reach 3.1 in. February is typically the driest time to visit Dublin when rainfall is around 1.9 in.

If weather is an important factor for your trip to Dublin, 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 60.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 41.0 F).

What is the cheapest time of day to fly from HLN to DUB?

When flying from Helena to Dublin, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Most accurate provider : When it comes to deals on Helena-Dublin flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Helena-Dublin flight deals on Cheapflights vs. AranGrant >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 AranGrant the most. AranGrant 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.

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.

$725+ Cheap Flights from Helena to Dublin

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Cheap flight deals from Helena to Dublin

Cheapest

Best

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 October 26, 2026.

Tue 12/86:20 am -

2 stops21h 00m

Tue 12/159:00 am -

2 stops35h 52m

Deal found 10/24

$767

Tue 12/87:03 am -

3 stops21h 42m

Tue 12/157:05 pm -

3 stops48h 25m

Deal found 10/24

$4,272

Best flights from Helena to Dublin
Discover carefully curated flight deals from Helena to Dublin that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 26, 2026.

Tue 2/91:12 pm -

2 stops22h 13m

Wed 2/177:25 pm -

2 stops34h 16m

Deal found 10/25

$725

Tue 12/86:20 am -

2 stops21h 00m

Tue 12/159:00 am -

2 stops35h 52m

Deal found 10/24

$767

Wed 1/137:00 am -

2 stops18h 45m

Mon 1/181:25 pm -

2 stops40h 16m

Deal found 10/23

$785

Sat 1/97:00 am -

2 stops42h 45m

Mon 1/181:25 pm -

2 stops40h 16m

Deal found 10/23

$797

Thu 1/76:15 am -

2 stops18h 55m

Fri 1/2210:40 am -

2 stops17h 52m

Deal found 10/23

$849

Mon 1/1112:50 pm -

2 stops16h 50m

Sat 1/235:45 am -

2 stops23h 56m

Deal found 10/23

$838

Sat 1/97:00 am -

2 stops42h 45m

Sun 1/1710:45 am -

2 stops18h 56m

Deal found 10/23

$851

Sun 1/176:15 am -

2 stops18h 15m

Thu 1/219:00 am -

2 stops35h 40m

Deal found 10/25

$1,172

Find flight deals from Helena to Dublin

Most accurate provider	AranGrant 3 stars
Most trusted provider	AranGrant 3 stars
Round-trip from	$725 (Air France)

Provider with most accurate pricing for Helena-Dublin flight deals.

Search Deals

Provider most trusted by Cheapflights users for Helena-Dublin flights.

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From Helena to Dublin

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Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

HelenaDublin

HLN Helena - DUB Dublin

HLNDUB

Helena

Tue 2/9

1:12 pm-6:25 pm

2 stops22h 13m

Dublin

Wed 2/17

7:25 pm-10:41 pm

2 stops34h 16m

$725

HelenaDublin

HLN Helena - DUB Dublin

HLNDUB

Helena

Tue 12/8

6:20 am-10:20 am

2 stops21h 00m

Dublin

Tue 12/15

9:00 am-1:52 pm

2 stops35h 52m

$767

HelenaDublin

HLN Helena - DUB Dublin

HLNDUB

Helena

Wed 1/13

7:00 am-8:45 am

2 stops18h 45m

Dublin

Mon 1/18

1:25 pm-10:41 pm

2 stops40h 16m

$785

HelenaDublin

HLN Helena - DUB Dublin

HLNDUB

Helena

Sat 1/9

7:00 am-8:45 am

2 stops42h 45m

Dublin

Mon 1/18

1:25 pm-10:41 pm

2 stops40h 16m

$797

HelenaDublin

HLN Helena - DUB Dublin

HLNDUB

Helena

Mon 1/11

12:50 pm-12:40 pm

2 stops16h 50m

Dublin

Sat 1/23

5:45 am-10:41 pm

2 stops23h 56m

$838

Quickest round-trip

HelenaDublin

HLN Helena - DUB Dublin

HLNDUB

Helena

Thu 1/7

6:15 am-8:10 am

2 stops18h 55m

Dublin

Fri 1/22

10:40 am-9:32 pm

2 stops17h 52m

$849

HelenaDublin

HLN Helena - DUB Dublin

HLNDUB

Helena

Sat 1/9

7:00 am-8:45 am

2 stops42h 45m

Dublin

Sun 1/17

10:45 am-10:41 pm

2 stops18h 56m

$851

HelenaDublin

HLN Helena - DUB Dublin

HLNDUB

Helena

Sun 1/17

6:15 am-7:30 am

2 stops18h 15m

Dublin

Thu 1/21

9:00 am-1:40 pm

2 stops35h 40m

$1,172

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/25

Sorted by cheapest first

Compare providers for flights from Helena to Dublin

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Helena to Dublin in October.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
AranGrant	Price Accuracy3 stars	Trust Score*3 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 AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Helena-Dublin flight deals on Cheapflights vs. AranGrant >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 AranGrant the most. AranGrant 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.

HLN-DUB

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.

Related info for your journey

How long is the flight from Helena to Dublin?
Airlines like Air France, United Airlines, and Delta fly from Helena to Dublin in about 18h 45m. The time it takes to get you to your destination can typically vary by up to 3h 28m. There are 4267 mi between Helena and Dublin. Both multi-stop and nonstop flights can be found to your destination and back.
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.

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$725+ 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 2/9. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Helena to Dublin with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Helena to Dublin

Cheapest flights from Helena to DublinExplore 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 October 26, 2026.

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 October 26, 2026.

Best flights from Helena to DublinDiscover carefully curated flight deals from Helena to Dublin that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 26, 2026.

Discover carefully curated flight deals from Helena to Dublin that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 26, 2026.

Find flight deals from Helena to Dublin

Most accurate provider

Most trusted provider

Round-trip from

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Use the filters below to find and compare flights from Helena to Dublin that are best for you.

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 October.

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.

Related info for your journey

How long is the flight from Helena to Dublin?

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

How can I find direct flights from Helena to Dublin?

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

Traveling to a place near Dublin?

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Alternative routes for Helena to Dublin

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Complete your trip

Complete your trip to Dublin by adding a car rental and/or hotel reservation to your travel itinerary.

Other flights to Dublin

Explore flights to Dublin departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 26, 2026.

Search flights from Helena to Dublin by cabin class

Find flights from Helena to Dublin, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Helena and Dublin flights

Browse other Helena and Dublin flight options. Last updated on October 26, 2026.

Other flights from Helena

Browse through other flights departing from Helena. Flights are based on user searches made on Cheapflights and were last updated on October 26, 2026.

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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 October 26, 2026.

Best flights from Helena to Dublin
Discover carefully curated flight deals from Helena to Dublin that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 26, 2026.