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Cheap flights from Helena to Dublin from $398

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Helena to Dublin departing on 12/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Helena to Dublin

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
7:00 am - 7:30 am
HLN
-
DUB
17h 30m
2 stops
United Airlines Logo
9:00 am - 8:59 pm
DUB
-
HLN
42h 59m
2 stops
$722United Airlines
Wed, Jan 6 - Thu, Jan 14
United Airlines Logo
2:30 pm - 7:10 am
HLN
-
DUB
33h 40m
2 stops
United Airlines Logo
9:00 am - 8:59 pm
DUB
-
HLN
42h 59m
2 stops
$726United Airlines
Tue, Jan 5 - Thu, Jan 14
United Airlines Logo
7:00 am - 7:30 am
HLN
-
DUB
17h 30m
2 stops
United Airlines Logo
9:00 am - 8:59 pm
DUB
-
HLN
42h 59m
2 stops
$727United Airlines
Wed, Jan 6 - Thu, Jan 14
United Airlines Logo
2:30 pm - 7:10 am
HLN
-
DUB
33h 40m
2 stops
United Airlines Logo
9:00 am - 8:59 pm
DUB
-
HLN
42h 59m
2 stops
$731United Airlines
Tue, Jan 5 - Thu, Jan 14
Delta Logo
5:45 am - 7:55 am
HLN
-
DUB
19h 10m
2 stops
Delta Logo
5:45 am - 10:41 pm
DUB
-
HLN
23h 56m
2 stops
$745Delta
Mon, Jan 4 - Fri, Jan 15
Delta Logo
5:45 am - 7:55 am
HLN
-
DUB
19h 10m
2 stops
Delta Logo
1:25 pm - 10:41 pm
DUB
-
HLN
40h 16m
2 stops
$746Delta
Mon, Jan 4 - Thu, Jan 14
United Airlines Logo
6:28 am - 10:20 am
HLN
-
DUB
20h 52m
2 stops
United Airlines Logo
9:30 am - 9:31 pm
DUB
-
HLN
19h 01m
2 stops
$749United Airlines
Sun, Nov 15 - Wed, Nov 18
United Airlines Logo
6:25 am - 9:45 am
HLN
-
DUB
20h 20m
2 stops
United Airlines Logo
9:20 am - 9:18 pm
DUB
-
HLN
42h 58m
2 stops
$763United Airlines
Sun, Sep 27 - Wed, Oct 21
United Airlines Logo
2:30 pm - 7:20 am
HLN
-
DUB
33h 50m
2 stops
United Airlines Logo
9:20 am - 9:18 pm
DUB
-
HLN
42h 58m
2 stops
$774United Airlines
Sat, Oct 3 - Wed, Oct 21
United Airlines Logo
6:25 am - 8:15 am
HLN
-
DUB
42h 50m
2 stops
United Airlines Logo
9:20 am - 1:48 pm
DUB
-
HLN
35h 28m
2 stops
$781United Airlines
Mon, Sep 28 - Fri, Oct 16

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United Airlines flights from Helena to Dublin

Our best United Airlines deals on Helena to Dublin flight tickets
United Airlines
Jan 6
HLN7:00 amHelena
17h 30m
2 stops
DUB7:30 amDublin
Jan 14
DUB9:00 amDublin
42h 59m
2 stops
HLN8:59 pmHelena
$722
United Airlines
Jan 6
HLN7:00 amHelena
17h 30m
2 stops
DUB7:30 amDublin
Jan 14
DUB9:00 amDublin
42h 59m
2 stops
HLN8:59 pmHelena
$727
United Airlines
Jan 5
HLN2:30 pmHelena
33h 40m
2 stops
DUB7:10 amDublin
Jan 14
DUB9:00 amDublin
42h 59m
2 stops
HLN8:59 pmHelena
$731

Delta flights from Helena to Dublin

Our best Delta deals on Helena to Dublin flight tickets
Delta
Jan 4
HLN5:45 amHelena
19h 10m
2 stops
DUB7:55 amDublin
Jan 15
DUB5:45 amDublin
23h 56m
2 stops
HLN10:41 pmHelena
$745
Delta
Sep 29
HLN7:15 amHelena
17h 40m
2 stops
DUB7:55 amDublin
Oct 22
DUB10:00 amDublin
19h 24m
2 stops
HLN10:24 pmHelena
$784

momondo 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, momondo users made 832,500 searches. Data last updated August 1, 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

Wed 1/6

7:00 am-7:30 am

2 stops17h 30m

Dublin

Thu 1/14

9:00 am-8:59 pm

2 stops42h 59m

$722

HelenaDublin

HLN - DUB

HLNDUB

Helena

Tue 1/5

2:30 pm-7:10 am

2 stops33h 40m

Dublin

Thu 1/14

9:00 am-8:59 pm

2 stops42h 59m

$726

HelenaDublin

HLN - DUB

HLNDUB

Helena

Wed 1/6

7:00 am-7:30 am

2 stops17h 30m

Dublin

Thu 1/14

9:00 am-8:59 pm

2 stops42h 59m

$727

HelenaDublin

HLN - DUB

HLNDUB

Helena

Tue 1/5

2:30 pm-7:10 am

2 stops33h 40m

Dublin

Thu 1/14

9:00 am-8:59 pm

2 stops42h 59m

$731

HelenaDublin

HLN - DUB

HLNDUB

Helena

Mon 1/4

5:45 am-7:55 am

2 stops19h 10m

Dublin

Fri 1/15

5:45 am-10:41 pm

2 stops23h 56m

$745

HelenaDublin

HLN - DUB

HLNDUB

Helena

Mon 1/4

5:45 am-7:55 am

2 stops19h 10m

Dublin

Thu 1/14

1:25 pm-10:41 pm

2 stops40h 16m

$746
Quickest round-trip

HelenaDublin

HLN - DUB

HLNDUB

Helena

Sun 11/15

6:28 am-10:20 am

2 stops20h 52m

Dublin

Wed 11/18

9:30 am-9:31 pm

2 stops19h 01m

$749

HelenaDublin

HLN - DUB

HLNDUB

Helena

Sun 9/27

6:25 am-9:45 am

2 stops20h 20m

Dublin

Wed 10/21

9:20 am-9:18 pm

2 stops42h 58m

$763

HelenaDublin

HLN - DUB

HLNDUB

Helena

Sat 10/3

2:30 pm-7:20 am

2 stops33h 50m

Dublin

Wed 10/21

9:20 am-9:18 pm

2 stops42h 58m

$774

HelenaDublin

HLN - DUB

HLNDUB

Helena

Mon 9/28

6:25 am-8:15 am

2 stops42h 50m

Dublin

Fri 10/16

9:20 am-1:48 pm

2 stops35h 28m

$781

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Dublin from

How to get the cheapest flight ticket from Helena to Dublin

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Helena to Dublin?

United Airlines and Delta are the most popular carriers operating from Helena to Dublin

What airlines fly to Dublin?

United Airlines, Delta and American Airlines are the top three most popular airlines that fly to Dublin from Helena according to our data. United Airlines is the first choice among our users, with 57% of people opting to fly with this airline when traveling to Dublin. Keep in mind that there are 3 different airlines that fly to Dublin on a routine basis, so you have a few additional options to choose from.

When to book flights from Helena to Dublin

Are you open to changing your travel dates? Check out the ideal times to fly from Helena to Dublin according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Helena to Dublin (HLN to DUB) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Helena to Dublin

Fastest flight time

18h 05m

Direct flights

None
The fastest flight from Helena to Dublin takes 18h 05m
There are no direct flights from Helena to Dublin. There are no popular flight routes from Helena to Dublin.
Search flight deals

Frequently asked questions about flying from Helena to Dublin

  • How far is Helena to Dublin by plane?

    There are 4272.7 mi between Helena and Dublin. In terms of flight time, this usually takes a little over 18h 05m.

  • When did momondo last update prices for flights from Helena Airport to Dublin Airport?

    Prices for flights from Helena Airport to Dublin Airport were last updated today.

  • How old do you have to be to fly from Helena Airport to Dublin Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Helena Airport to Dublin Airport.

  • What documentation or ID do you need to fly to Dublin Airport?

    The necessary travel and health documents for your Dublin Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Traveling to a place near Dublin?

Book flights to Dublin if you plan to visit one of these locations
Kilkenny
Swords
Athlone
Malahide
Kildare
Mullingar
Wicklow
Bray
Portmarnock
Leixlip
Dundalk
Carlingford
Arklow
Drogheda
Castleknock
Naas
Cavan
Maynooth
Slane
Thurles

Why use momondo?

Why should I use momondo to find a flight deal from Helena to Dublin?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Helena to Dublin. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Helena to Dublin with flexible booking policies on momondo?

All flight searches from Helena to Dublin on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Helena to Dublin?

momondo helps you find the best flight between Helena and Dublin by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Helena to Dublin right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Dublin, momondo offers a useful price alert feature which will track prices for flights to Dublin from Helena and alert you when they change.

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