Ireland

$453+ Cheap flights from Portland, ME (PWM) to Ireland

PWM — DUB
Nov 29 — Dec 61
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Cheap flight deals from Portland to Ireland

Cheapest flights from Portland to Ireland

Tue 12/89:12 am -
1 stop17h 18m
Tue 12/159:00 am -
2 stops39h 25m
Deal found 10/29$713
Tue 12/89:12 am -
2 stops40h 58m
Tue 12/159:00 am -
2 stops39h 25m
Deal found 10/29$721
Wed 12/94:53 pm -
2 stops16h 37m
Wed 12/161:25 pm -
2 stops15h 56m
Deal found 10/25$730
Wed 12/94:53 pm -
2 stops16h 37m
Wed 12/1610:45 am -
1 stop18h 36m
Deal found 10/25$734
Wed 12/96:00 am -
1 stop20h 45m
Wed 12/168:50 am -
2 stops20h 31m
Deal found 10/28$736
Wed 12/93:20 pm -
1 stop13h 35m
Wed 12/169:30 am -
1 stop18h 54m
Deal found 10/28$739
Mon 11/236:00 am -
1 stop20h 45m
Mon 11/301:25 pm -
2 stops30h 55m
Deal found 10/25$763
Mon 11/232:05 pm -
1 stop15h 15m
Mon 11/3012:05 pm -
1 stop16h 47m
Deal found 10/25$767
Tue 11/106:00 am -
1 stop20h 45m
Fri 11/205:45 am -
2 stops23h 34m
Deal found 10/29$785
Mon 11/2311:07 am -
2 stops24h 38m
Mon 11/308:05 pm -
2 stops26h 55m
Deal found 10/25$1,007
Fri 12/1110:55 am -
2 stops19h 35m
Fri 12/182:00 pm -
2 stops25h 23m
Deal found 10/27$1,017
Fri 12/113:20 pm -
3 stops19h 25m
Fri 12/187:50 am -
3 stops30h 17m
Deal found 10/27$2,054

Find flight deals from Portland to Ireland

Round-trip from

$713
(United Airlines)

One-way from

$453
(Justfly.com)

Popular in

January

Cheapest in

February

Average price

$778
From Portland to Ireland
One-way flight from Portland to Ireland
High demand for flights, 7% potential price rise
Cheapest flight prices on average. 4% potential price decrease ($34 potential savings vs. average RT price).
Average for round-trip flights in October 2026

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandDublin

PWM Portland - DUB Dublin

PWMDUB

Portland

Wed 11/18

6:30 am-4:30 am

1 stop17h 00m

Dublin

Wed 12/31

12:00 am-6:00 pm

Nonstop0h 00m

$453

PortlandDublin

PWM Portland - DUB Dublin

PWMDUB

Portland

Mon 1/11

7:50 pm-5:15 am

1 stop28h 25m

Dublin

Wed 12/31

12:00 am-6:00 pm

Nonstop0h 00m

$507
Quickest round-trip

PortlandDublin

PWM Portland - DUB Dublin

PWMDUB

Portland

Sun 11/29

10:57 am-5:15 am

1 stop13h 18m

Dublin

Wed 12/31

12:00 am-6:00 pm

Nonstop0h 00m

$537

PortlandDublin

PWM Portland - DUB Dublin

PWMDUB

Portland

Sun 11/29

5:50 am-10:20 am

2 stops23h 30m

Dublin

Wed 12/31

12:00 am-6:00 pm

Nonstop0h 00m

$538

PortlandDublin

PWM Portland - DUB Dublin

PWMDUB

Portland

Mon 1/11

12:47 pm-8:45 am

2 stops14h 58m

Dublin

Wed 12/31

12:00 am-6:00 pm

Nonstop0h 00m

$538

PortlandDublin

PWM Portland - DUB Dublin

PWMDUB

Portland

Tue 12/8

9:12 am-7:30 am

1 stop17h 18m

Dublin

Tue 12/15

9:00 am-7:25 pm

2 stops39h 25m

$713

PortlandDublin

PWM Portland - DUB Dublin

PWMDUB

Portland

Wed 12/9

4:53 pm-2:30 pm

2 stops16h 37m

Dublin

Wed 12/16

1:25 pm-12:21 am

2 stops15h 56m

$730

PortlandDublin

PWM Portland - DUB Dublin

PWMDUB

Portland

Wed 12/9

4:53 pm-2:30 pm

2 stops16h 37m

Dublin

Wed 12/16

10:45 am-12:21 am

1 stop18h 36m

$734

PortlandDublin

PWM Portland - DUB Dublin

PWMDUB

Portland

Wed 12/9

6:00 am-7:45 am

1 stop20h 45m

Dublin

Wed 12/16

8:50 am-12:21 am

2 stops20h 31m

$736

PortlandDublin

PWM Portland - DUB Dublin

PWMDUB

Portland

Wed 12/9

3:20 pm-9:55 am

1 stop13h 35m

Dublin

Wed 12/16

9:30 am-11:24 pm

1 stop18h 54m

$739

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/30

Showing 1-10 of 17 resultsSorted by cheapest first
1
2

Best time to book a flight from Portland to Ireland

Have a flexible travel schedule? Discover the best time to fly to Ireland from Portland with our price prediction graph.
Estimated round-trip price

Cheapflights Insights

Everything you need to know about your flight from Portland to Ireland

No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Ireland

Read through reviews of airlines operating flights from Portland to Ireland, such as United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Boarding

7.7

Entertainment

7.1

Overall

7.3

Food

6.7

Comfort

7.3

Crew

8.1

Reviews

1 / 20
8.0
Excellent

Asha,Sep 2026

LGA - IAH

The flight was on time and boardi g was very organized and timely. Snacks are awful and having one little glass of juice was terrible. Fortunately, I had my water to keep me hydrated.

Boarding

7.7

Entertainment

7.1

Overall

7.3

Food

6.7

Comfort

7.3

Crew

8.1

Reviews

1 / 20
8.0
Excellent

Asha,Sep 2026

LGA - IAH

The flight was on time and boardi g was very organized and timely. Snacks are awful and having one little glass of juice was terrible. Fortunately, I had my water to keep me hydrated.

Related info for your journey

  • What airport do you fly from for flights from Portland to Ireland?

    Most people fly from Portland (PWM) if they book a flight from Portland to Ireland. Portland is conveniently located just 2.9 mi from Portland’s city center.

  • How long is the flight from Portland, Maine to Ireland?

    Airlines like United Airlines, Air France, and Delta fly from Portland, Maine to Ireland in about 16h 37m. The time it takes to get you to your destination can typically vary by up to 4h 08m. The distance between Portland, Maine and Ireland is about 2901 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Portland 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Top airline flying from Portland to Ireland

AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$534Average$979FlexibilityNo cancel feeOn-time69%

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