How long is the flight from Montana to Ireland?

United Airlines, American Airlines, and Delta can get you from Montana to Ireland in just under 20h 03m. Your travel time can differ by up to 6h 42m. There are 4231 mi between Montana and Ireland. This flight may include one or multiple stops.

In terms of precipitation, rainfall in Ireland 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 Ireland when rainfall is around 1.9 in.

If weather is an important factor for your trip to Ireland, 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 time of day to fly from MT to IE?

When flying from Montana to Ireland, 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 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.

$382+ Flights from Montana to Ireland

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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 December 15, 2025.

Sun 12/142:42 pmBZN - DUB

2 stops34h 28mLufthansa

Thu 12/1810:40 amDUB - BZN

2 stops17h 28mLufthansa

Deal found 12/13

$1,470

Sun 12/142:36 pmBZN - DUB

1 stop34h 09mKLM

Thu 12/185:55 amDUB - BZN

2 stops23h 31mKLM

Deal found 12/13

$1,492

Sun 12/1412:50 pmBZN - DUB

1 stop12h 20mUnited Airlines

Thu 12/1810:40 amDUB - BZN

1 stop31h 59mUnited Airlines

Deal found 12/13

$2,819

Best flights from Montana to Ireland
Discover carefully curated flight deals from Montana to Ireland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 15, 2025.

Mon 3/26:20 amBZN - DUB

2 stops21h 00mUnited Airlines

Mon 3/98:00 amDUB - BZN

2 stops35h 34mUnited Airlines

Deal found 12/13

$460

Mon 1/121:42 pmBZN - SNN

2 stops20h 03mAmerican Airlines

Mon 1/197:50 amSNN - BZN

2 stops21h 12mAmerican Airlines

Deal found 12/14

$484

Mon 3/21:05 pmBZN - DUB

2 stops35h 05mMultiple Airlines

Mon 3/98:00 amDUB - BZN

3 stops20h 11mMultiple Airlines

Deal found 12/13

$485

Mon 3/26:00 amBZN - DUB

2 stops26h 45mDelta

Mon 3/99:45 amDUB - BZN

1 stop16h 29mDelta

Deal found 12/13

$488

Fri 1/237:20 amBZN - SNN

2 stops25h 25mBritish Airways

Tue 1/277:50 amSNN - BZN

2 stops23h 06mBritish Airways

Deal found 12/12

$686

Wed 1/285:15 pmMSO - DUB

2 stops31h 55mUnited Airlines

Wed 2/49:00 amDUB - MSO

2 stops43h 51mUnited Airlines

Deal found 12/14

$460

Thu 1/2210:52 amBIL - DUB

2 stops14h 18mUnited Airlines

Mon 1/269:00 amDUB - BIL

2 stops43h 23mUnited Airlines

Deal found 12/12

$460

Wed 1/219:14 amBTM - DUB

2 stops15h 56mUnited Airlines

Sun 1/259:30 amDUB - BTM

2 stops20h 15mUnited Airlines

Deal found 12/12

$488

Fri 1/236:15 amHLN - DUB

2 stops18h 15mUnited Airlines

Tue 1/279:30 amDUB - HLN

2 stops18h 56mUnited Airlines

Deal found 12/12

$488

Sat 3/72:36 pmBIL - DUB

2 stops32h 34mMultiple Airlines

Sat 3/218:00 amDUB - BIL

2 stops18h 51mMultiple Airlines

Deal found 12/14

$660

Thu 2/53:03 pmBZN - ORK

2 stops25h 22mBritish Airways

Mon 2/911:55 amORK - BZN

2 stops19h 01mBritish Airways

Deal found 12/12

$687

Wed 1/2112:05 pmBZN - DUB

1 stop12h 25mUnited Airlines

Sun 1/2510:40 amDUB - BZN

2 stops30h 05mUnited Airlines

Deal found 12/14

$488

Tue 5/57:50 amBIL - DUB

2 stops18h 10mAmerican Airlines

Fri 5/1511:45 amDUB - BIL

1 stop16h 01mAmerican Airlines

Deal found 12/14

$773

Fri 1/236:00 amMSO - DUB

2 stops18h 30mUnited Airlines

Tue 1/2710:40 amDUB - MSO

2 stops18h 11mUnited Airlines

Deal found 12/14

$488

Tue 5/57:50 amBIL - DUB

2 stops18h 10mAmerican Airlines

Tue 6/161:45 pmDUB - BIL

1 stop15h 56mAmerican Airlines

Deal found 12/14

$773

Wed 1/216:00 amFCA - DUB

2 stops18h 30mUnited Airlines

Sun 1/2510:40 amDUB - FCA

2 stops18h 19mUnited Airlines

Deal found 12/12

$488

Tue 5/57:00 amBIL - DUB

2 stops18h 15mMultiple Airlines

Tue 6/169:20 amDUB - BIL

3 stops18h 31mMultiple Airlines

Deal found 12/14

$786

Thu 2/126:15 amMSO - DUB

2 stops17h 55mUnited Airlines

Sat 2/219:00 amDUB - MSO

3 stops19h 57mUnited Airlines

Deal found 12/15

$490

Fri 2/131:39 pmFCA - DUB

2 stops34h 31mUnited Airlines

Wed 2/251:35 pmDUB - FCA

2 stops29h 17mUnited Airlines

Deal found 12/14

$495

Thu 5/144:19 pmFCA - DUB

2 stops18h 41mMultiple Airlines

Thu 5/2811:45 amDUB - FCA

1 stop30h 07mMultiple Airlines

Deal found 12/14

$1,031

Thu 2/1210:00 amBTM - DUB

2 stops14h 10mUnited Airlines

Wed 2/189:00 amDUB - BTM

2 stops44h 26mUnited Airlines

Deal found 12/13

$533

Mon 4/275:16 pmMSO - DUB

2 stops31h 04mUnited Airlines

Wed 5/138:50 amDUB - MSO

2 stops19h 52mUnited Airlines

Deal found 12/15

$541

Mon 4/275:16 pmMSO - DUB

2 stops33h 29mUnited Airlines

Tue 5/128:50 amDUB - MSO

2 stops19h 52mUnited Airlines

Deal found 12/15

$541

Sat 4/256:15 amMSO - DUB

2 stops43h 00mUnited Airlines

Tue 5/128:50 amDUB - MSO

2 stops19h 52mUnited Airlines

Deal found 12/15

$548

Tue 4/286:15 amMSO - DUB

3 stops21h 25mUnited Airlines

Fri 5/812:30 pmDUB - MSO

2 stops56h 02mUnited Airlines

Deal found 12/15

$552

Mon 4/276:15 amMSO - DUB

2 stops21h 25mUnited Airlines

Mon 5/119:50 amDUB - MSO

2 stops42h 52mUnited Airlines

Deal found 12/15

$563

Tue 4/286:15 amMSO - DUB

3 stops21h 55mUnited Airlines

Mon 5/119:50 amDUB - MSO

2 stops42h 52mUnited Airlines

Deal found 12/15

$563

Tue 6/94:11 pmHLN - DUB

2 stops17h 54mMultiple Airlines

Tue 6/303:20 pmDUB - HLN

1 stop31h 11mMultiple Airlines

Deal found 12/13

$1,783

Wed 1/216:00 amMSO - DUB

2 stops18h 30mUnited Airlines

Sun 1/259:30 amDUB - MSO

2 stops19h 21mUnited Airlines

Deal found 12/12

$588

Tue 4/286:15 amMSO - DUB

3 stops20h 30mUnited Airlines

Sun 5/108:50 amDUB - MSO

2 stops19h 52mUnited Airlines

Deal found 12/15

$591

Last-minute flights from Montana to Ireland
Discover last-minute flight deals from Montana to Ireland. Data last updated December 15, 2025 and is based on user searches.

Sun 12/142:42 pmBZN - DUB

2 stops34h 28mLufthansa

Thu 12/1810:40 amDUB - BZN

2 stops17h 28mLufthansa

Deal found 12/13

$1,470

Mon 1/121:42 pmBZN - SNN

2 stops20h 03mAmerican Airlines

Mon 1/197:50 amSNN - BZN

2 stops21h 12mAmerican Airlines

Deal found 12/14

$484

Wed 1/219:14 amBTM - DUB

2 stops15h 56mUnited Airlines

Sun 1/2510:40 amDUB - BTM

2 stops19h 05mUnited Airlines

Deal found 12/14

$488

Wed 1/2112:05 pmBZN - DUB

1 stop12h 25mUnited Airlines

Sun 1/2510:40 amDUB - BZN

2 stops30h 05mUnited Airlines

Deal found 12/14

$488

Wed 1/216:00 amFCA - DUB

2 stops19h 10mUnited Airlines

Sun 1/259:30 amDUB - FCA

2 stops19h 29mUnited Airlines

Deal found 12/14

$488

Wed 1/216:00 amMSO - DUB

2 stops18h 30mUnited Airlines

Sun 1/259:30 amDUB - MSO

2 stops19h 21mUnited Airlines

Deal found 12/12

$588

Thu 1/226:30 amBIL - DUB

2 stops18h 40mUnited Airlines

Mon 1/269:00 amDUB - BIL

2 stops37h 20mUnited Airlines

Deal found 12/14

$460

Fri 1/236:15 amHLN - DUB

2 stops18h 15mUnited Airlines

Tue 1/2710:40 amDUB - HLN

2 stops17h 46mUnited Airlines

Deal found 12/14

$488

Fri 1/236:00 amMSO - DUB

2 stops18h 30mUnited Airlines

Tue 1/2710:40 amDUB - MSO

2 stops18h 11mUnited Airlines

Deal found 12/14

$488

Fri 1/233:03 pmBZN - SNN

2 stops17h 42mBritish Airways

Tue 1/278:05 pmSNN - BZN

2 stops34h 51mBritish Airways

Deal found 12/14

$686

Wed 1/285:15 pmMSO - DUB

2 stops31h 55mUnited Airlines

Wed 2/49:00 amDUB - MSO

2 stops43h 51mUnited Airlines

Deal found 12/14

$460

Wed 1/281:21 pmMSO - DUB

2 stops17h 44mAmerican Airlines

Wed 2/44:40 pmDUB - MSO

1 stop27h 10mAmerican Airlines

Deal found 12/14

$681

One-way flights from Montana to Ireland
Search for one-way flight options from Montana to Ireland. Find affordable one-way fares based on user searches. Data last updated December 15, 2025.

Tue 1/1312:46 pmBZN - DUB

1 stop12h 24mLufthansa

Deal found 12/14

$382

Tue 1/137:20 amBZN - DUB

3 stops46h 40mMultiple Airlines

Deal found 12/14

$392

Tue 1/136:15 amBZN - DUB

2 stops18h 15mUnited Airlines

Deal found 12/14

$399

Find flight deals from Montana to Ireland

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$460 (United Airlines)
One-way from	$382 (Kiwi.com)
Popular in	July
Cheapest in	November
Average price	$574

Provider with most accurate pricing for Bozeman Gallatin Field-Dublin flight deals.

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Provider most trusted by Cheapflights users for Bozeman Gallatin Field-Dublin flights.

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From Montana to Ireland

Search Deals

One-way flight from Montana to Ireland

Search Deals

Highest demand for flights based on searches. 20% potential increase in price ($221 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 5% potential price decrease ($43 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

BozemanDublin

BZN - DUB

BZNDUB

Bozeman Gallatin Field

Mon 3/2

6:20 am-10:20 am

2 stops21h 00m

Dublin

Mon 3/9

8:00 am-1:34 pm

2 stops35h 34m

$460

MissoulaDublin

MSO - DUB

MSODUB

Missoula Johnson-Bell Field

Wed 1/28

5:15 pm-8:10 am

2 stops31h 55m

Dublin

Wed 2/4

9:00 am-9:51 pm

2 stops43h 51m

$460

BillingsDublin

BIL - DUB

BILDUB

Billings Logan Intl

Thu 1/22

10:52 am-8:10 am

2 stops14h 18m

Dublin

Mon 1/26

9:00 am-9:23 pm

2 stops43h 23m

$460

BozemanShannon

BZN - SNN

BZNSNN

Bozeman Gallatin Field

Mon 1/12

1:42 pm-4:45 pm

2 stops20h 03m

Shannon

Mon 1/19

7:50 am-10:02 pm

2 stops21h 12m

$484

BozemanDublin

BZN - DUB

BZNDUB

Bozeman Gallatin Field

Mon 3/2

1:05 pm-7:10 am

2 stops35h 05m

Dublin

Mon 3/9

8:00 am-10:11 pm

3 stops20h 11m

$485

BozemanDublin

BZN - DUB

BZNDUB

Bozeman Gallatin Field

Mon 3/2

6:00 am-3:45 pm

2 stops26h 45m

Dublin

Mon 3/9

9:45 am-8:14 pm

1 stop16h 29m

$488

ButteDublin

BTM - DUB

BTMDUB

Butte Silver Bow Co

Wed 1/21

9:14 am-8:10 am

2 stops15h 56m

Dublin

Sun 1/25

9:30 am-10:45 pm

2 stops20h 15m

$488

HelenaDublin

HLN - DUB

HLNDUB

Helena

Fri 1/23

6:15 am-7:30 am

2 stops18h 15m

Dublin

Tue 1/27

9:30 am-9:26 pm

2 stops18h 56m

$488

BozemanDublin

BZN - DUB

BZNDUB

Bozeman Gallatin Field

Wed 1/21

12:05 pm-7:30 am

1 stop12h 25m

Dublin

Sun 1/25

10:40 am-9:45 am

2 stops30h 05m

$488

MissoulaDublin

MSO - DUB

MSODUB

Missoula Johnson-Bell Field

Fri 1/23

6:00 am-7:30 am

2 stops18h 30m

Dublin

Tue 1/27

10:40 am-9:51 pm

2 stops18h 11m

$488

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/14

Showing 1-10 of 33 results

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, October is the cheapest month in which you can book a flight from Montana to Ireland (average of $385). Flying from Montana to Ireland in June is currently the most expensive (average of $881). 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

How long is the flight from Montana to Ireland?
United Airlines, American Airlines, and Delta can get you from Montana to Ireland in just under 20h 03m. Your travel time can differ by up to 6h 42m. 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, October is the cheapest month in which you can book a flight from Montana to Ireland (average of $385). Flying from Montana to Ireland in June is currently the most expensive (average of $881). 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

Alternative routes for Montana to Ireland

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O'Hare Intl to Leonardo da Vinci/Fiumicino flights

Newark to Lisbon flights

Newark to Dublin flights

Boston to Leonardo da Vinci/Fiumicino flights

San Francisco to Charles de Gaulle flights

Baltimore to Heathrow flights

John F Kennedy Intl to Amsterdam flights

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Seattle to Heathrow flights

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Dulles Intl to Leonardo da Vinci/Fiumicino flights

Boston to Lisbon flights

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Newark to Frankfurt flights

Top 4 airlines flying from Montana to Ireland

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$385	Average$781	FlexibilityNo cancel fee	On-time69%
Delta	Cheapest$456	Average$634	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$489	Average$1,098	FlexibilityNo cancel fee	On-time71%
KLM	Cheapest$570	Average$856	FlexibilityNo cancel fee	On-time75%

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$382+ 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 1/13. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheap flight deals from Montana to Ireland

Cheapest flights from Montana to IrelandExplore 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 December 15, 2025.

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 December 15, 2025.

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 December 15, 2025.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

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

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.

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?

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?

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

How can I find direct flights from Montana to Ireland?

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

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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Montana to Ireland

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Top 4 airlines flying from Montana to Ireland

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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 December 15, 2025.