How long is the flight from Montana to Ireland?

United Airlines, KLM, and Delta can get you from Montana to Ireland in just under 18h 55m. Your travel time can differ by up to 15h 11m. There are 4267 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.

$258+ 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 31, 2025.

Wed 12/311:34 pmBZN - ORK

2 stops14h 36mAmerican Airlines

Wed 1/711:55 amORK - BZN

2 stops32h 24mAmerican Airlines

Deal found 12/30

$1,175

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 31, 2025.

Wed 2/116:15 amHLN - DUB

2 stops18h 55mUnited Airlines

Sun 2/159:00 amDUB - HLN

2 stops43h 16mUnited Airlines

Deal found 12/28

$460

Mon 3/22:39 pmBZN - DUB

1 stop34h 06mKLM

Mon 3/95:15 pmDUB - BZN

2 stops32h 59mKLM

Deal found 12/29

$487

Wed 1/212:39 pmBZN - DUB

2 stops18h 06mMultiple Airlines

Sun 1/255:55 amDUB - BZN

2 stops21h 11mMultiple Airlines

Deal found 12/31

$487

Fri 1/305:15 amBIL - DUB

2 stops20h 30mDelta

Tue 2/105:55 amDUB - BIL

2 stops20h 29mDelta

Deal found 12/30

$487

Mon 3/162:36 pmBIL - DUB

2 stops20h 34mLufthansa

Tue 3/245:55 pmDUB - BIL

2 stops33h 12mLufthansa

Deal found 12/28

$500

Thu 3/53:02 pmBZN - SNN

2 stops37h 28mBritish Airways

Mon 3/98:05 pmSNN - BZN

2 stops33h 51mBritish Airways

Deal found 12/28

$808

Fri 2/131:20 pmMSO - DUB

1 stop14h 00mAmerican Airlines

Fri 2/204:40 pmDUB - MSO

1 stop27h 10mAmerican Airlines

Deal found 12/30

$841

Mon 3/24:29 pmBZN - DUB

2 stops32h 41mUnited Airlines

Mon 3/98:00 amDUB - BZN

2 stops44h 11mUnited Airlines

Deal found 12/29

$460

Fri 2/67:55 amMSO - DUB

2 stops17h 50mMultiple Airlines

Mon 2/91:25 pmDUB - MSO

2 stops37h 49mMultiple Airlines

Deal found 12/29

$487

Tue 1/2711:47 amBIL - DUB

2 stops20h 58mDelta

Tue 2/35:55 amDUB - BIL

2 stops20h 29mDelta

Deal found 12/30

$487

Thu 2/126:15 amMSO - DUB

2 stops17h 55mUnited Airlines

Sat 2/219:00 amDUB - MSO

2 stops43h 57mUnited Airlines

Deal found 12/28

$462

Fri 1/305:15 amBIL - DUB

2 stops20h 30mDelta

Tue 2/35:55 amDUB - BIL

2 stops20h 29mDelta

Deal found 12/30

$487

Thu 1/221:40 pmFCA - DUB

2 stops34h 30mUnited Airlines

Fri 2/69:00 amDUB - FCA

2 stops45h 20mUnited Airlines

Deal found 12/29

$462

Thu 4/96:25 amBIL - DUB

1 stop18h 30mMultiple Airlines

Thu 4/165:55 amDUB - BIL

2 stops21h 16mMultiple Airlines

Deal found 12/30

$535

Tue 3/35:30 amBZN - ORK

2 stops26h 30mDelta

Tue 3/106:00 amORK - BZN

2 stops20h 14mDelta

Deal found 12/30

$491

Tue 4/2110:35 amBZN - DUB

2 stops17h 05mUnited Airlines

Tue 4/289:50 amDUB - BZN

2 stops32h 41mUnited Airlines

Deal found 12/29

$464

Mon 3/165:15 amBIL - DUB

2 stops45h 30mDelta

Mon 3/239:45 amDUB - BIL

2 stops42h 44mDelta

Deal found 12/28

$494

Wed 1/142:42 pmFCA - DUB

2 stops34h 28mUnited Airlines

Sun 1/189:00 amDUB - FCA

2 stops35h 36mUnited Airlines

Deal found 12/29

$471

Wed 4/292:49 pmFCA - DUB

1 stop34h 06mMultiple Airlines

Sat 5/93:00 pmDUB - FCA

2 stops33h 42mMultiple Airlines

Deal found 12/29

$605

Thu 1/226:00 amFCA - DUB

2 stops19h 10mLufthansa

Fri 2/610:40 amDUB - FCA

1 stop32h 23mLufthansa

Deal found 12/29

$741

Wed 4/296:34 amBZN - DUB

2 stops17h 46mUnited Airlines

Wed 5/139:20 amDUB - BZN

2 stops31h 27mUnited Airlines

Deal found 12/29

$487

Wed 1/216:00 amMSO - DUB

2 stops18h 30mUnited Airlines

Sun 1/259:30 amDUB - MSO

2 stops19h 21mUnited Airlines

Deal found 12/28

$488

Wed 1/213:03 pmBZN - ORK

2 stops17h 22mBritish Airways

Sun 1/254:05 pmORK - BZN

2 stops38h 51mBritish Airways

Deal found 12/28

$896

Fri 1/236:30 amBIL - DUB

2 stops18h 00mUnited Airlines

Tue 1/279:30 amDUB - BIL

2 stops18h 53mUnited Airlines

Deal found 12/28

$488

Wed 5/135:40 amMSO - DUB

2 stops29h 30mDelta

Mon 5/2512:00 pmDUB - MSO

1 stop15h 07mDelta

Deal found 12/29

$699

Wed 1/2112:46 pmBZN - DUB

1 stop12h 24mUnited Airlines

Sun 1/2510:40 amDUB - BZN

1 stop32h 04mUnited Airlines

Deal found 12/28

$489

Fri 3/131:53 pmFCA - DUB

2 stops19h 12mMultiple Airlines

Sat 3/218:55 amDUB - FCA

2 stops20h 52mMultiple Airlines

Deal found 12/29

$830

Tue 1/276:30 amBIL - DUB

3 stops17h 40mUnited Airlines

Tue 2/39:30 amDUB - BIL

2 stops18h 53mUnited Airlines

Deal found 12/30

$495

Thu 4/96:05 amFCA - DUB

2 stops20h 40mMultiple Airlines

Tue 4/143:20 pmDUB - FCA

1 stop15h 27mMultiple Airlines

Deal found 12/29

$887

Fri 2/66:00 amMSO - DUB

2 stops18h 30mUnited Airlines

Mon 2/99:30 amDUB - MSO

3 stops35h 05mUnited Airlines

Deal found 12/29

$504

Last-minute flights from Montana to Ireland
Discover last-minute flight deals from Montana to Ireland. Data last updated December 31, 2025 and is based on user searches.

Tue 1/131:21 pmMSO - DUB

2 stops17h 59mAmerican Airlines

Fri 1/167:35 amDUB - MSO

2 stops20h 10mAmerican Airlines

Deal found 12/30

$980

Wed 1/142:42 pmFCA - DUB

2 stops34h 28mUnited Airlines

Sun 1/189:00 amDUB - FCA

2 stops35h 36mUnited Airlines

Deal found 12/30

$471

Thu 1/159:14 amBTM - DUB

2 stops39h 56mUnited Airlines

Mon 1/199:30 amDUB - BTM

2 stops20h 15mUnited Airlines

Deal found 12/29

$624

Wed 1/212:39 pmBZN - DUB

2 stops18h 06mMultiple Airlines

Sun 1/255:55 amDUB - BZN

2 stops21h 11mMultiple Airlines

Deal found 12/31

$487

Wed 1/216:00 amMSO - DUB

2 stops19h 10mUnited Airlines

Sun 1/259:30 amDUB - MSO

2 stops19h 21mUnited Airlines

Deal found 12/30

$488

Wed 1/2112:46 pmBZN - DUB

1 stop12h 24mUnited Airlines

Sun 1/2510:40 amDUB - BZN

1 stop32h 04mUnited Airlines

Deal found 12/28

$489

Wed 1/213:03 pmBZN - ORK

2 stops17h 22mBritish Airways

Sun 1/255:35 pmORK - BZN

2 stops37h 21mBritish Airways

Deal found 12/30

$896

Thu 1/221:40 pmFCA - DUB

2 stops34h 30mUnited Airlines

Fri 2/69:00 amDUB - FCA

2 stops45h 20mUnited Airlines

Deal found 12/29

$462

Thu 1/226:00 amFCA - DUB

2 stops19h 10mLufthansa

Fri 2/610:40 amDUB - FCA

1 stop32h 23mLufthansa

Deal found 12/29

$741

Fri 1/236:30 amBIL - DUB

2 stops18h 00mUnited Airlines

Tue 1/2710:40 amDUB - BIL

2 stops17h 43mUnited Airlines

Deal found 12/30

$488

Tue 1/276:30 amBIL - DUB

3 stops17h 40mUnited Airlines

Tue 2/39:30 amDUB - BIL

2 stops18h 53mUnited Airlines

Deal found 12/30

$495

Fri 1/305:15 amBIL - DUB

2 stops20h 30mDelta

Tue 2/35:55 amDUB - BIL

2 stops20h 29mDelta

Deal found 12/30

$487

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 31, 2025.

Wed 5/131:41 pmBZN - DUB

2 stops15h 09mAmerican Airlines

Deal found 12/30

$258

Wed 5/136:00 amBZN - DUB

1 stop18h 55mDelta

Deal found 12/30

$293

Wed 5/136:15 amBIL - DUB

1 stop18h 40mDelta

Deal found 12/30

$293

Wed 5/136:07 amBIL - DUB

2 stops19h 38mAmerican Airlines

Deal found 12/30

$358

Wed 5/137:59 pmBZN - DUB

3 stops52h 56mMultiple Airlines

Deal found 12/30

$366

Wed 5/137:00 amBIL - DUB

3 stops18h 15mAir Canada

Deal found 12/30

$426

Thu 6/116:33 amFCA - DUB

2 stops19h 47mMultiple Airlines

Deal found 12/28

$472

Sun 6/286:15 amBIL - DUB

1 stop18h 40mDelta

Deal found 12/29

$531

Sat 6/276:25 pmBIL - DUB

2 stops30h 30mDelta

Deal found 12/29

$537

Sat 6/277:11 pmBIL - DUB

1 stop33h 34mMultiple Airlines

Deal found 12/29

$557

Thu 6/1112:42 pmFCA - DUB

1 stop14h 03mAmerican Airlines

Deal found 12/28

$601

Sun 6/281:36 pmBIL - DUB

3 stops44h 29mMultiple Airlines

Deal found 12/29

$613

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	$258 (American Airlines)
Popular in	July
Cheapest in	November
Average price	$574

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.

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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

HelenaDublin

HLN - DUB

HLNDUB

Helena

Wed 2/11

6:15 am-8:10 am

2 stops18h 55m

Dublin

Sun 2/15

9:00 am-9:16 pm

2 stops43h 16m

$460

BozemanDublin

BZN - DUB

BZNDUB

Bozeman Gallatin Field

Mon 3/2

4:29 pm-8:10 am

2 stops32h 41m

Dublin

Mon 3/9

8:00 am-10:11 pm

2 stops44h 11m

$460

MissoulaDublin

MSO - DUB

MSODUB

Missoula Johnson-Bell Field

Thu 2/12

6:15 am-7:10 am

2 stops17h 55m

Dublin

Sat 2/21

9:00 am-9:57 pm

2 stops43h 57m

$462

KalispellDublin

FCA - DUB

FCADUB

Kalispell Glacier Park

Thu 1/22

1:40 pm-7:10 am

2 stops34h 30m

Dublin

Fri 2/6

9:00 am-11:20 pm

2 stops45h 20m

$462

BozemanDublin

BZN - DUB

BZNDUB

Bozeman Gallatin Field

Tue 4/21

10:35 am-10:40 am

2 stops17h 05m

Dublin

Tue 4/28

9:50 am-11:31 am

2 stops32h 41m

$464

KalispellDublin

FCA - DUB

FCADUB

Kalispell Glacier Park

Wed 1/14

2:42 pm-8:10 am

2 stops34h 28m

Dublin

Sun 1/18

9:00 am-1:36 pm

2 stops35h 36m

$471

BozemanDublin

BZN - DUB

BZNDUB

Bozeman Gallatin Field

Mon 3/2

2:39 pm-7:45 am

1 stop34h 06m

Dublin

Mon 3/9

5:15 pm-8:14 pm

2 stops32h 59m

$487

BozemanDublin

BZN - DUB

BZNDUB

Bozeman Gallatin Field

Wed 1/21

2:39 pm-3:45 pm

2 stops18h 06m

Dublin

Sun 1/25

5:55 am-8:06 pm

2 stops21h 11m

$487

BillingsDublin

BIL - DUB

BILDUB

Billings Logan Intl

Fri 1/30

5:15 am-8:45 am

2 stops20h 30m

Dublin

Tue 2/10

5:55 am-7:24 pm

2 stops20h 29m

$487

MissoulaDublin

MSO - DUB

MSODUB

Missoula Johnson-Bell Field

Fri 2/6

7:55 am-8:45 am

2 stops17h 50m

Dublin

Mon 2/9

1:25 pm-8:14 pm

2 stops37h 49m

$487

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/30

Showing 1-10 of 46 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, KLM, and Delta can get you from Montana to Ireland in just under 18h 55m. Your travel time can differ by up to 15h 11m. There are 4267 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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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$764	FlexibilityNo cancel fee	On-time75%

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$258+ 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 5/13. 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 31, 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 31, 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 31, 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 31, 2025.