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Cheap flights from Portland, Maine to Ireland from €278

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.
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0 bags
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Find the cheapest flights from Portland, Maine to Ireland

Cheap return flights

Enter your travel dates to find the best prices.
American Airlines Logo
12:40 - 09:10PWM-DUB
15h 30m2 stops
American Airlines Logo
11:30 - 22:54DUB-PWM
16h 24m1 stop
€408American Airlines
Find Deal
Mon, 12 Jan - Thu, 22 Jan
American Airlines Logo
12:40 - 09:10PWM-DUB
15h 30m2 stops
American Airlines Logo
11:30 - 22:07DUB-PWM
15h 37m2 stops
€411American Airlines
Find Deal
Mon, 12 Jan - Thu, 22 Jan
Delta Logo
06:30 - 07:50PWM-DUB
20h 20m2 stops
Delta Logo
13:25 - 00:20DUB-PWM
15h 55m2 stops
€418Delta
Find Deal
Tue, 17 Feb - Thu, 26 Feb
United Airlines Logo
05:45 - 08:10PWM-DUB
21h 25m1 stop
United Airlines Logo
09:30 - 21:14DUB-PWM
16h 44m2 stops
€420United Airlines
Find Deal
Tue, 17 Feb - Thu, 26 Feb
United Airlines Logo
06:00 - 08:10PWM-DUB
21h 10m2 stops
United Airlines Logo
12:05 - 09:44DUB-PWM
26h 39m1 stop
€459United Airlines
Find Deal
Thu, 11 Dec - Fri, 19 Dec
Air Canada Logo
06:00 - 06:10PWM-DUB
44h 10m2 stops
Air Canada Logo
08:00 - 18:25DUB-PWM
38h 25m2 stops
€490Air Canada
Find Deal
Mon, 9 Mar - Sun, 15 Mar
KLM Logo
14:35 - 08:45PWM-DUB
14h 10m1 stop
KLM Logo
08:50 - 23:49DUB-PWM
18h 59m2 stops
€499KLM
Find Deal
Mon, 9 Mar - Sun, 15 Mar
KLM Logo
14:35 - 08:45PWM-DUB
14h 10m1 stop
KLM Logo
10:45 - 23:49DUB-PWM
17h 04m1 stop
€501KLM
Find Deal
Mon, 9 Mar - Sun, 15 Mar
Delta Logo
06:30 - 08:45PWM-DUB
22h 15m1 stop
Delta Logo
06:00 - 23:49DUB-PWM
22h 49m2 stops
€508Delta
Find Deal
Fri, 27 Mar - Tue, 31 Mar
Air Canada Logo
10:35 - 11:30PWM-SNN
19h 55m3 stops
Air Canada Logo
07:50 - 09:10SNN-PWM
30h 20m3 stops
€631Air Canada
Find Deal
Thu, 4 Dec - Tue, 9 Dec

American Airlines flights from Portland, Maine to Ireland

Our best American Airlines deals on Portland, Maine to Ireland flight tickets
American Airlines
12 Jan
PWM12:40Portland
15h 30m
2 stops
DUB09:10Dublin
22 Jan
DUB11:30Dublin
16h 24m
1 stop
PWM22:54Portland
€408
Find similar
American Airlines
12 Jan
PWM12:40Portland
15h 30m
2 stops
DUB09:10Dublin
22 Jan
DUB11:30Dublin
15h 37m
2 stops
PWM22:07Portland
€411
Find similar
American Airlines
12 Jan
PWM12:40Portland
15h 00m
1 stop
DUB08:40Dublin
22 Jan
DUB11:30Dublin
16h 24m
1 stop
PWM22:54Portland
€416
Find similar

Delta flights from Portland, Maine to Ireland

Our best Delta deals on Portland, Maine to Ireland flight tickets
Delta
17 Feb
PWM06:30Portland
20h 20m
2 stops
DUB07:50Dublin
26 Feb
DUB13:25Dublin
15h 55m
2 stops
PWM00:20Portland
€418
Find similar
Delta
27 Mar
PWM06:30Portland
22h 15m
1 stop
DUB08:45Dublin
31 Mar
DUB06:00Dublin
22h 49m
2 stops
PWM23:49Portland
€508
Find similar
Delta
27 Mar
PWM06:30Portland
22h 15m
1 stop
DUB08:45Dublin
31 Mar
DUB11:00Dublin
15h 59m
1 stop
PWM21:59Portland
€509
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 16 November 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

Mon 12/1

12:40-09:10

2 stops15h 30m

Dublin

Thu 22/1

11:30-22:54

1 stop16h 24m

€408

PortlandDublin

PWM - DUB

PWMDUB

Portland

Mon 12/1

12:40-09:10

2 stops15h 30m

Dublin

Thu 22/1

11:30-22:07

2 stops15h 37m

€411

PortlandDublin

PWM - DUB

PWMDUB

Portland

Tue 17/2

06:30-07:50

2 stops20h 20m

Dublin

Thu 26/2

13:25-00:20

2 stops15h 55m

€418

PortlandDublin

PWM - DUB

PWMDUB

Portland

Tue 17/2

05:45-08:10

1 stop21h 25m

Dublin

Thu 26/2

09:30-21:14

2 stops16h 44m

€420

PortlandDublin

PWM - DUB

PWMDUB

Portland

Thu 11/12

06:00-08:10

2 stops21h 10m

Dublin

Fri 19/12

12:05-09:44

1 stop26h 39m

€459

PortlandDublin

PWM - DUB

PWMDUB

Portland

Mon 9/3

06:00-06:10

2 stops44h 10m

Dublin

Sun 15/3

08:00-18:25

2 stops38h 25m

€490

PortlandDublin

PWM - DUB

PWMDUB

Portland

Mon 9/3

14:35-08:45

1 stop14h 10m

Dublin

Sun 15/3

08:50-23:49

2 stops18h 59m

€499

PortlandDublin

PWM - DUB

PWMDUB

Portland

Mon 9/3

14:35-08:45

1 stop14h 10m

Dublin

Sun 15/3

10:45-23:49

1 stop17h 04m

€501

PortlandDublin

PWM - DUB

PWMDUB

Portland

Fri 27/3

06:30-08:45

1 stop22h 15m

Dublin

Tue 31/3

06:00-23:49

2 stops22h 49m

€508

PortlandShannon

PWM - SNN

PWMSNN

Portland

Thu 4/12

10:35-11:30

3 stops19h 55m

Shannon

Tue 9/12

07:50-09:10

3 stops30h 20m

€631

Flights are sorted by cheapest return flights first.

Showing 1-10 of 16 resultsSorted by cheapest first
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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, Scandinavian Airlines, and United Airlines 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

Direct flights

None
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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