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Cheap flights from Portland, Maine to Ireland from €326

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland, Maine to Ireland departing on 10/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
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Cheap return flights

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KLM Logo
14:35 - 08:45
PWM
-
DUB
13h 10m1 stop
KLM Logo
08:50 - 00:18
DUB
-
PWM
20h 28m2 stops
€411KLM
Thu, 26 Feb - Sun, 1 Mar
KLM Logo
05:31 - 07:45
PWM
-
DUB
21h 14m1 stop
KLM Logo
10:45 - 00:18
DUB
-
PWM
18h 33m1 stop
€413KLM
Thu, 26 Feb - Sun, 1 Mar
Multiple Airlines Logo
14:35 - 09:20
PWM
-
DUB
13h 45m2 stops
Multiple Airlines Logo
13:25 - 00:18
DUB
-
PWM
15h 53m2 stops
€415Multiple Airlines
Thu, 26 Feb - Sun, 1 Mar
Delta Logo
14:35 - 09:15
PWM
-
DUB
13h 40m1 stop
Delta Logo
10:00 - 11:55
DUB
-
PWM
30h 55m2 stops
€505Delta
Fri, 24 Apr - Sat, 2 May
Delta Logo
14:35 - 09:15
PWM
-
DUB
13h 40m1 stop
Delta Logo
10:00 - 11:55
DUB
-
PWM
30h 55m2 stops
€505Delta
Fri, 24 Apr - Sat, 2 May
United Airlines Logo
09:40 - 08:10
PWM
-
DUB
17h 30m2 stops
United Airlines Logo
09:30 - 18:52
DUB
-
PWM
14h 22m2 stops
€517United Airlines
Wed, 21 Jan - Sun, 25 Jan
United Airlines Logo
11:12 - 08:10
PWM
-
DUB
15h 58m2 stops
United Airlines Logo
10:40 - 14:39
DUB
-
PWM
32h 59m1 stop
€523United Airlines
Wed, 21 Jan - Sun, 25 Jan
American Airlines Logo
12:40 - 11:30
PWM
-
SNN
17h 50m2 stops
American Airlines Logo
07:50 - 22:07
SNN
-
PWM
19h 17m2 stops
€525American Airlines
Wed, 14 Jan - Wed, 21 Jan
United Airlines Logo
15:44 - 10:40
PWM
-
DUB
13h 56m2 stops
United Airlines Logo
09:50 - 13:38
DUB
-
PWM
32h 48m2 stops
€540United Airlines
Fri, 24 Apr - Sat, 2 May
American Airlines Logo
16:12 - 11:20
PWM
-
SNN
14h 08m2 stops
American Airlines Logo
07:40 - 22:27
SNN
-
PWM
19h 47m2 stops
€731American Airlines
Wed, 15 Apr - Sat, 25 Apr

Delta flights from Portland, Maine to Ireland

Our best Delta deals on Portland, Maine to Ireland flight tickets
Delta
24 Apr
PWM14:35Portland
13h 40m
1 stop
DUB09:15Dublin
2 May
DUB10:00Dublin
30h 55m
2 stops
PWM11:55Portland
€505
Find similar
Delta
24 Apr
PWM14:35Portland
13h 40m
1 stop
DUB09:15Dublin
2 May
DUB10:00Dublin
30h 55m
2 stops
PWM11:55Portland
€505
Find similar
Delta
24 Apr
PWM12:50Portland
14h 05m
2 stops
DUB07:55Dublin
2 May
DUB10:00Dublin
30h 55m
2 stops
PWM11:55Portland
€581
Find similar

United Airlines flights from Portland, Maine to Ireland

Our best United Airlines deals on Portland, Maine to Ireland flight tickets
United Airlines
21 Jan
PWM09:40Portland
17h 30m
2 stops
DUB08:10Dublin
25 Jan
DUB09:30Dublin
14h 22m
2 stops
PWM18:52Portland
€517
Find similar
United Airlines
21 Jan
PWM11:12Portland
15h 58m
2 stops
DUB08:10Dublin
25 Jan
DUB10:40Dublin
32h 59m
1 stop
PWM14:39Portland
€523
Find similar
United Airlines
24 Apr
PWM15:44Portland
13h 56m
2 stops
DUB10:40Dublin
2 May
DUB09:50Dublin
32h 48m
2 stops
PWM13:38Portland
€540
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Portland, Maine 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, momondo users made 13,528 searches. Data last updated 19 December 2025.
Use the filters below to find and compare flights from Portland, Maine to Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortlandDublin

PWM - DUB

PWMDUB

Portland

Thu 26/2

14:35-08:45

1 stop13h 10m

Dublin

Sun 1/3

08:50-00:18

2 stops20h 28m

€411

PortlandDublin

PWM - DUB

PWMDUB

Portland

Thu 26/2

05:31-07:45

1 stop21h 14m

Dublin

Sun 1/3

10:45-00:18

1 stop18h 33m

€413

PortlandDublin

PWM - DUB

PWMDUB

Portland

Thu 26/2

14:35-09:20

2 stops13h 45m

Dublin

Sun 1/3

13:25-00:18

2 stops15h 53m

€415

PortlandDublin

PWM - DUB

PWMDUB

Portland

Fri 24/4

14:35-09:15

1 stop13h 40m

Dublin

Sat 2/5

10:00-11:55

2 stops30h 55m

€505

PortlandDublin

PWM - DUB

PWMDUB

Portland

Fri 24/4

14:35-09:15

1 stop13h 40m

Dublin

Sat 2/5

10:00-11:55

2 stops30h 55m

€505

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 21/1

09:40-08:10

2 stops17h 30m

Dublin

Sun 25/1

09:30-18:52

2 stops14h 22m

€517

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 21/1

11:12-08:10

2 stops15h 58m

Dublin

Sun 25/1

10:40-14:39

1 stop32h 59m

€523

PortlandShannon

PWM - SNN

PWMSNN

Portland

Wed 14/1

12:40-11:30

2 stops17h 50m

Shannon

Wed 21/1

07:50-22:07

2 stops19h 17m

€525

PortlandDublin

PWM - DUB

PWMDUB

Portland

Fri 24/4

15:44-10:40

2 stops13h 56m

Dublin

Sat 2/5

09:50-13:38

2 stops32h 48m

€540

PortlandShannon

PWM - SNN

PWMSNN

Portland

Wed 15/4

16:12-11:20

2 stops14h 08m

Shannon

Sat 25/4

07:40-22:27

2 stops19h 47m

€731

Flights are sorted by cheapest return flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
1
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See travel insights to Ireland from

How to get the cheapest flight ticket from Portland, Maine to Ireland

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Portland to Ireland?

JetBlue, Air France, and Air Canada are the most popular carriers operating from Portland to Ireland

Cheap Portland, Maine to Ireland flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland, Maine to Ireland

Fastest flight time

13h 10m

Direct flights

None
The fastest flight from Portland, Maine to Ireland takes 13h 10m
There are no direct flights from Portland, Maine to Ireland. There are no popular flight routes from Portland, Maine to Ireland.
Search flight deals

  • When did momondo last update prices for flights from Portland Airport to Ireland?

    Prices for flights from Portland Airport to Ireland are refreshed on a daily basis.

  • How old do you have to be to fly from Portland Airport to Ireland?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Portland Airport to Ireland.

  • What documentation or ID do you need to fly to Ireland?

    The travel and health documents required for your trip to Ireland can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Ireland. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Why use momondo?

Why should I use momondo to find a flight deal from Portland to Ireland?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Portland to Ireland. momondo saves you time and could save you money on your trip.

Can I find flights from Portland to Ireland with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Ireland from Portland with this policy.

How can momondo help me find flights from Portland to Ireland?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Ireland from Portland.

I’m not ready to book a flight from Portland to Ireland right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Portland to Ireland flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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