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Ireland

$398+ Cheap flights from Montana to Ireland

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 9/4. Fares are subject to change and may not be available on all flights or dates of travel.
BZN — DUB
Jun 19 — Jun 261
Fri 6/19
Fri 6/26
1 adult, Economy
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Cheap flight deals from Montana to Ireland

Cheapest flights from Montana to Ireland
Explore the most affordable flight options available from Montana to Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 20, 2026.

This Air Canada deal was found by Cheapflights users on 5/15. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/317:00 am
BIL
-
DUB
2 stops42h 15m
Air Canada
Tue 9/89:20 am
DUB
-
BIL
2 stops42h 40m
Air Canada
Deal found 5/15$726
This Air Canada deal was found by Cheapflights users on 5/15. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/317:00 am
BIL
-
DUB
2 stops42h 15m
Air Canada
Thu 9/39:20 am
DUB
-
BIL
2 stops42h 40m
Air Canada
Deal found 5/15$731
This Air Canada deal was found by Cheapflights users on 5/15. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/305:57 pm
BIL
-
DUB
2 stops55h 18m
Air Canada
Tue 9/89:20 am
DUB
-
BIL
2 stops42h 40m
Air Canada
Deal found 5/15$732
This Air Canada deal was found by Cheapflights users on 5/15. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/305:57 pm
BIL
-
DUB
2 stops55h 18m
Air Canada
Fri 9/49:20 am
DUB
-
BIL
2 stops44h 31m
Air Canada
Deal found 5/15$737
This Air France deal was found by Cheapflights users on 5/16. 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.
Wed 11/46:00 am
BZN
-
DUB
1 stop18h 55m
Multiple Airlines
Mon 11/95:15 pm
DUB
-
BZN
2 stops31h 40m
Multiple Airlines
Deal found 5/16$742
This Delta deal was found by Cheapflights users on 5/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/46:00 am
BZN
-
DUB
1 stop18h 55m
Delta
Tue 11/109:55 am
DUB
-
BZN
1 stop21h 03m
Delta
Deal found 5/16$745
This Air France deal was found by Cheapflights users on 5/16. 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 11/38:30 am
BZN
-
DUB
2 stops17h 15m
Multiple Airlines
Mon 11/95:15 pm
DUB
-
BZN
2 stops31h 40m
Multiple Airlines
Deal found 5/16$747
This Delta deal was found by Cheapflights users on 5/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/26:15 am
BIL
-
DUB
1 stop18h 40m
Delta
Mon 9/71:25 pm
DUB
-
BIL
2 stops37h 12m
Delta
Deal found 5/15$747
This KLM deal was found by Cheapflights users on 5/16. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/33:15 pm
BZN
-
DUB
1 stop33h 40m
KLM
Mon 11/91:25 pm
DUB
-
BZN
2 stops35h 30m
KLM
Deal found 5/16$748
This Delta deal was found by Cheapflights users on 5/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/26:15 am
BIL
-
DUB
1 stop18h 40m
Delta
Tue 9/812:00 pm
DUB
-
BIL
1 stop14h 37m
Delta
Deal found 5/15$750
This KLM deal was found by Cheapflights users on 5/16. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/41:05 pm
BZN
-
DUB
2 stops16h 35m
KLM
Mon 11/95:15 pm
DUB
-
BZN
2 stops31h 40m
KLM
Deal found 5/16$751
This United Airlines deal was found by Cheapflights users on 5/15. 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 9/17:00 am
BIL
-
DUB
2 stops21h 10m
United Airlines
Thu 9/39:50 am
DUB
-
BIL
2 stops30h 51m
United Airlines
Deal found 5/15$751

Find flight deals from Montana to Ireland

Keep the following information in mind while searching for Montana to Ireland flight deals. Data was last updated May 20, 2026.

Most accurate provider

BusinessClass
3 stars

Most trusted provider

BusinessClass
3 stars

Round-trip from

$726
(Air Canada)

One-way from

$398
(United Airlines)

Popular in

July

Cheapest in

February

Average price

$810
Provider with most accurate pricing for Bozeman Gallatin Field-Dublin flight deals.
Search Deals
Provider most trusted by Cheapflights users for Bozeman Gallatin Field-Dublin flights.
Search Deals
From Montana to Ireland
Search Deals
One-way flight from Montana to Ireland
Search Deals
Highest demand for flights based on searches. 25% potential increase in price ($264 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($41 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Montana to Ireland 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 May 20, 2026.
Use the filters below to find and compare flights from Montana to Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BillingsDublin

BIL - DUB

BILDUB

Billings Logan Intl

Tue 9/1

7:00 am-11:10 am

2 stops21h 10m

Dublin

Thu 9/3

9:50 am-9:41 am

2 stops30h 51m

$751

BillingsDublin

BIL - DUB

BILDUB

Billings Logan Intl

Sun 8/30

6:26 am-7:55 am

1 stop18h 29m

Dublin

Thu 9/3

11:10 am-10:37 pm

2 stops18h 27m

$794

HelenaDublin

HLN - DUB

HLNDUB

Helena

Wed 8/26

6:15 am-7:45 am

2 stops18h 30m

Dublin

Tue 9/1

9:20 am-9:30 pm

2 stops19h 10m

$797

BillingsDublin

BIL - DUB

BILDUB

Billings Logan Intl

Wed 9/2

6:15 am-7:55 am

1 stop18h 40m

Dublin

Sun 9/6

5:55 am-10:37 pm

2 stops23h 42m

$797

HelenaDublin

HLN - DUB

HLNDUB

Helena

Wed 8/26

6:15 am-7:45 am

2 stops18h 30m

Dublin

Mon 8/31

9:50 am-9:30 pm

2 stops42h 40m

$818

BozemanDublin

BZN - DUB

BZNDUB

Bozeman Gallatin Field

Sat 8/22

4:30 pm-9:45 am

1 stop34h 15m

Dublin

Sat 9/5

9:50 am-3:23 pm

3 stops36h 33m

$821
Quickest round-trip

KalispellDublin

FCA - DUB

FCADUB

Kalispell Glacier Park

Sun 8/23

4:40 pm-11:50 am

1 stop12h 10m

Dublin

Wed 9/2

9:30 am-3:58 pm

1 stop13h 28m

$827

KalispellDublin

FCA - DUB

FCADUB

Kalispell Glacier Park

Sun 8/23

4:40 pm-11:50 am

1 stop12h 10m

Dublin

Wed 9/2

11:45 am-10:56 pm

2 stops18h 11m

$834

BozemanDublin

BZN - DUB

BZNDUB

Bozeman Gallatin Field

Sat 9/12

4:32 pm-7:20 am

2 stops31h 48m

Dublin

Sun 9/20

9:20 am-3:27 pm

2 stops37h 07m

$834

HelenaDublin

HLN - DUB

HLNDUB

Helena

Fri 9/18

6:15 am-7:20 am

2 stops18h 05m

Dublin

Tue 9/29

11:35 am-9:03 pm

2 stops16h 28m

$851

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/17

Showing 1-10 of 40 resultsSorted by cheapest first
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Best time to book a flight from Montana to Ireland

Have a flexible travel schedule? Discover the best time to fly to Ireland from Montana 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 Montana to Ireland

What is the cheapest month to book a flight from Montana to Ireland?

Currently, August is the cheapest month in which you can book a flight from Montana to Ireland (average of $299). Flying from Montana to Ireland in June is currently the most expensive (average of $864). 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.

Related info for your journey

Find useful and relevant information for your journey from Montana to Ireland. 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 Montana to Ireland?

    United Airlines, Delta, and American Airlines can get you from Montana to Ireland in just under 12h 10m. Your travel time can differ by up to 9h. There are 4246 mi between Montana and Ireland. This flight may include one or multiple stops.

  • Can I find deals for flights from Montana to Ireland that include hotel bookings?

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

  • How can I find direct flights from Montana to Ireland?

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

  • Can I find deals for business class flights from Montana to Ireland?

    Yes. Cheapflights offers flight deals from Montana to Ireland 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 Montana to Ireland?

    Currently, August is the cheapest month in which you can book a flight from Montana to Ireland (average of $299). Flying from Montana to Ireland in June is currently the most expensive (average of $864). 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

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Alternative routes for Montana to Ireland

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Montana to Ireland

Discover the top 3 airlines that operate flights from Montana to Ireland. 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 May 20, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$430Average$723FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$484Average$737FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$489Average$817FlexibilityNo cancel feeOn-time71%

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