HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Dublin

$413+ Cheap flights from Helena (HLN) to Dublin (DUB)

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 8/31. Fares are subject to change and may not be available on all flights or dates of travel.
HLN — DUB
ago. 3 — ago. 101
dom. 8/3
dom. 8/10
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Helena to Dublin 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 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 julio 29, 2025.

Round-trip from

$646
(United Airlines)

One-way from

$413
(United Airlines)
From Helena to Dublin
Search Deals
One-way flight from Helena to Dublin
Search Deals

Find 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 julio 29, 2025.

This United Airlines deal was found by Cheapflights users on 7/28. 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.
lun. 9/16:30 amHLN - DUB
2 stops20h 15mUnited Airlines
vie. 9/199:20 amDUB - HLN
2 stops18h 51mUnited Airlines
Deal found 7/28$646

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 julio 29, 2025.
Use the filters below to find and compare flights from Helena to Dublin that are best for you.

Fly from

Helena

Fly to

Dublin

Route

Depart

Return

Price

HelenaDublin

HLN - DUB

HLNDUB

Helena

lun. 9/1

6:30 am-9:45 am

2 stops20h 15m

Dublin

vie. 9/19

9:20 am-9:11 pm

2 stops18h 51m

$646

HelenaDublin

HLN - DUB

HLNDUB

Helena

dom. 8/31

6:30 am-7:45 am

2 stops42h 15m

$413

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

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

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 julio 29, 2025.
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
8,899 reviews

Boarding

7.7

Overall

7.4

Entertainment

7.1

Comfort

7.3

Crew

8.1

Food

6.6

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
8,899 reviews
United Airlines
7.4
Good
8,899 reviews

Boarding

7.7

Overall

7.4

Entertainment

7.1

Comfort

7.3

Crew

8.1

Food

6.6

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

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.

  • 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 $646.

  • 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.

See more FAQs

Traveling to a place near Dublin?

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

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 Dublin

See prices for flight routes from nearby airports that may be better suited for you.
Bozeman to Dublin flights
Billings to Dublin flights
Missoula to Dublin flights
Bozeman to Shannon flights
Butte to Dublin flights
Kalispell to Dublin flights
Bozeman to Cork flights

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 julio 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$542Average$628FlexibilityNo cancel feeOn-time69%

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.