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Ireland

$352+ 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 11/4. Fares are subject to change and may not be available on all flights or dates of travel.
BZN — DUB
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheap flight deals from Montana to Ireland

Keep the following information in mind while searching for Montana to Ireland flight deals. Data was last updated September 17, 2025.

Round-trip from

$479
(United Airlines)

One-way from

$352
(Kiwi.com)

Popular in

July

Cheapest in

November

Average price

$823
From Montana to Ireland
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One-way flight from Montana to Ireland
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Highest demand for flights based on searches. 19% potential increase in price ($210 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($35 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find 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 September 17, 2025.

This United Airlines deal was found by Cheapflights users on 9/15. 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.
Wed 11/196:40 amHLN - DUB
2 stops20h 15mUnited Airlines
Wed 11/269:00 amDUB - HLN
2 stops35h 27mUnited Airlines
Deal found 9/15$479
This United Airlines deal was found by Cheapflights users on 9/17. 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 10/286:35 amBZN - DUB
2 stops21h 45mUnited Airlines
Fri 11/79:00 amDUB - BZN
2 stops33h 43mUnited Airlines
Deal found 9/17$479
This Air Canada deal was found by Cheapflights users on 9/16. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/46:35 amBZN - DUB
2 stops17h 35mMultiple Airlines
Wed 12/39:00 amDUB - BZN
3 stops33h 48mMultiple Airlines
Deal found 9/16$504
This American Airlines deal was found by Cheapflights users on 9/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/281:00 pmBZN - DUB
2 stops15h 15mAmerican Airlines
Fri 11/712:55 pmDUB - BZN
1 stop30h 46mAmerican Airlines
Deal found 9/15$511
This United Airlines deal was found by Cheapflights users on 9/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/46:35 amBZN - DUB
2 stops17h 55mUnited Airlines
Wed 12/310:40 amDUB - BZN
1 stop32h 08mUnited Airlines
Deal found 9/16$512
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Mon 10/2712:45 pmBZN - DUB
1 stop13h 25mUnited Airlines
Mon 11/39:00 amDUB - BZN
2 stops37h 30mUnited Airlines
Deal found 9/15$524
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Wed 11/126:10 amFCA - DUB
2 stops20h 45mUnited Airlines
Sun 11/169:00 amDUB - FCA
2 stops35h 36mUnited Airlines
Deal found 9/14$529
This United Airlines deal was found by Cheapflights users on 9/17. 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.
Wed 10/1512:50 pmBZN - DUB
1 stop13h 55mUnited Airlines
Wed 10/229:50 amDUB - BZN
2 stops36h 30mUnited Airlines
Deal found 9/17$549
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Thu 11/276:40 amHLN - DUB
2 stops17h 50mMultiple Airlines
Thu 12/45:00 amDUB - HLN
2 stops23h 22mMultiple Airlines
Deal found 9/15$553
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Thu 10/306:10 amFCA - DUB
2 stops20h 00mUnited Airlines
Thu 11/69:30 amDUB - FCA
2 stops19h 14mUnited Airlines
Deal found 9/15$557
This United deal was found by Cheapflights users on 9/15. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/246:10 amHLN - DUB
2 stops42h 00mMultiple Airlines
Thu 1/155:00 amDUB - HLN
2 stops23h 26mMultiple Airlines
Deal found 9/15$560
This American Airlines deal was found by Cheapflights users on 9/17. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/274:54 pmBZN - DUB
2 stops14h 41mAmerican Airlines
Mon 11/312:55 pmDUB - BZN
1 stop31h 07mAmerican Airlines
Deal found 9/17$561

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 September 17, 2025.
Use the filters below to find and compare flights from Montana to Ireland that are best for you.

Fly from

Montana

Fly to

Ireland

Route

Depart

Return

Price

HelenaDublin

HLN - DUB

HLNDUB

Helena

Wed 11/19

6:40 am-9:55 am

2 stops20h 15m

Dublin

Wed 11/26

9:00 am-1:27 pm

2 stops35h 27m

$479

BozemanDublin

BZN - DUB

BZNDUB

Bozeman Gallatin Field

Tue 11/4

6:35 am-7:30 am

2 stops17h 55m

Dublin

Wed 12/3

9:00 am-9:39 pm

2 stops43h 39m

$479

BozemanDublin

BZN - DUB

BZNDUB

Bozeman Gallatin Field

Tue 10/28

10:47 am-10:20 am

2 stops17h 33m

Dublin

Fri 11/7

9:00 am-11:43 am

2 stops33h 43m

$479

ButteDublin

BTM - DUB

BTMDUB

Butte Silver Bow Co

Wed 2/11

9:14 am-7:30 am

2 stops15h 16m

Dublin

Fri 2/27

9:00 am-10:22 pm

2 stops20h 22m

$497

HelenaDublin

HLN - DUB

HLNDUB

Helena

Wed 2/11

6:15 am-7:30 am

2 stops18h 15m

Dublin

Fri 2/27

9:00 am-8:59 pm

2 stops18h 59m

$502

BozemanDublin

BZN - DUB

BZNDUB

Bozeman Gallatin Field

Wed 2/11

11:30 am-7:30 am

1 stop13h 00m

Dublin

Fri 2/27

9:00 am-9:47 am

2 stops31h 47m

$502

BozemanDublin

BZN - DUB

BZNDUB

Bozeman Gallatin Field

Tue 10/28

1:00 pm-10:15 am

2 stops15h 15m

Dublin

Fri 11/7

12:55 pm-12:41 pm

1 stop30h 46m

$511

BozemanDublin

BZN - DUB

BZNDUB

Bozeman Gallatin Field

Wed 2/11

12:52 pm-1:35 pm

2 stops17h 43m

Dublin

Fri 2/27

7:35 am-7:15 pm

2 stops18h 40m

$520

BozemanDublin

BZN - DUB

BZNDUB

Bozeman Gallatin Field

Mon 10/27

12:45 pm-8:10 am

1 stop13h 25m

Dublin

Mon 11/3

9:00 am-3:30 pm

2 stops37h 30m

$524

BozemanDublin

BZN - DUB

BZNDUB

Bozeman Gallatin Field

Fri 10/31

10:47 am-10:20 am

2 stops17h 33m

Dublin

Fri 11/7

9:00 am-11:43 am

2 stops33h 43m

$529

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 33 results
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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, November is the cheapest month in which you can book a flight from Montana to Ireland (average of $509). Flying from Montana to Ireland in June is currently the most expensive (average of $923). 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 19h 53m. Your travel time can differ by up to 22m. There are 4231 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, November is the cheapest month in which you can book a flight from Montana to Ireland (average of $509). Flying from Montana to Ireland in June is currently the most expensive (average of $923). 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

Browse thousands of different options on Cheapflights for your next trip

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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 4 airlines flying from Montana to Ireland

Discover the top 4 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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$385Average$771FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$489Average$1,103FlexibilityNo cancel feeOn-time71%
DeltaCheapest$515Average$880FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$570Average$856FlexibilityNo cancel feeOn-time75%

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