How long is the flight from Helena to Dublin?

Airlines like United Airlines fly from Helena to Dublin in about 17h 30m. The time it takes to get you to your destination can typically vary by up to . There are 4267 mi between Helena and Dublin.

What is the cheapest airline to fly from Helena to Dublin round-trip?

Flying on United Airlines is currently your cheapest option to Dublin, with prices starting at $542.

What is the cheapest day to fly from Helena to Dublin?

Travelers seeking maximum savings on their Helena to Dublin flight should consider departing on Thursday mornings when fares are most often at their lowest. Wednesday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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 day to fly round-trip from Helena to Dublin?

Tuesday flights are found to be more expensive to fly from Helena to Dublin. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Dublin.

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.

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.

$529+ Flights from Helena to Dublin

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Cheap flight deals from Helena to Dublin

Round-trip from	$529 (United Airlines)

From Helena to Dublin

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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 September 11, 2025.

Wed 3/47:00 amHLN - DUB

2 stops17h 30mUnited Airlines

Sun 3/88:00 amDUB - HLN

2 stops42h 59mUnited Airlines

Deal found 9/10

$529

Fly from

Fly to

Route

Depart

Return

Price

HelenaDublin

HLN - DUB

HLNDUB

Helena

Wed 3/4

7:00 am-7:30 am

2 stops17h 30m

Dublin

Sun 3/8

8:00 am-7:59 pm

2 stops42h 59m

$529

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

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, November is the cheapest month in which you can book a flight from Helena to Dublin (average of $509). Flying from Helena to Dublin in June is currently the most expensive (average of $924). 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

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

8,937 reviews

Reviews

1 / 20

4.0

Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

United Airlines

7.4

Good

8,937 reviews

United Airlines

7.4

Good

8,937 reviews

Reviews

1 / 20

4.0

Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Related info for your journey

How long is the flight from Helena to Dublin?
Airlines like United Airlines fly from Helena to Dublin in about 17h 30m. The time it takes to get you to your destination can typically vary by up to . There are 4267 mi between Helena and Dublin.
What is the cheapest airline to fly from Helena to Dublin round-trip?
Flying on United Airlines is currently your cheapest option to Dublin, with prices starting at $542.
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, November is the cheapest month in which you can book a flight from Helena to Dublin (average of $509). Flying from Helena to Dublin in June is currently the most expensive (average of $924). 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.

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Other flights to Dublin

Top airline flying from Helena to Dublin

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$542	Average$628	FlexibilityNo cancel fee	On-time69%

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$529+ 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 3/4. 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

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2. Select your favorite providers

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Cheap flight deals from Helena to Dublin

Round-trip from

Find flight deals from Helena to Dublin

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 September 11, 2025.

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 September 11, 2025.

Cheapflights Fare Finder

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

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.

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?

Reviews of airlines servicing Dublin

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.

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?

What is the cheapest airline to fly from Helena to Dublin round-trip?

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?

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

Traveling to a place near Dublin?

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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.

Top airline flying from Helena to Dublin

100% Free

Book with Flexibility

Travel Smart

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 September 11, 2025.