Cheap flights from Portland, Maine to Ireland from €419

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight from Portland, Maine to Ireland departing on 19/10. 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

KLM Logo
06:50 - 09:15PWM-DUB
21h 25m1 stop
KLM Logo
10:45 - 00:05DUB-PWM
18h 20m1 stop
€419KLM
Find Deal
Sun, 19 Oct - Tue, 4 Nov
KLM Logo
14:30 - 08:45PWM-DUB
13h 15m1 stop
KLM Logo
10:45 - 23:54DUB-PWM
18h 09m1 stop
€425KLM
Find Deal
Tue, 11 Nov - Tue, 18 Nov
Multiple Airlines Logo
14:30 - 09:20PWM-DUB
13h 50m2 stops
Multiple Airlines Logo
10:45 - 23:54DUB-PWM
18h 09m1 stop
€428Multiple Airlines
Find Deal
Tue, 11 Nov - Tue, 18 Nov
Delta Logo
06:00 - 07:45PWM-DUB
20h 45m1 stop
Delta Logo
09:45 - 14:07DUB-PWM
33h 22m2 stops
€437Delta
Find Deal
Wed, 19 Nov - Thu, 27 Nov
United Airlines Logo
15:00 - 07:30PWM-DUB
11h 30m1 stop
United Airlines Logo
12:05 - 18:59DUB-PWM
11h 54m1 stop
€449United Airlines
Find Deal
Wed, 19 Nov - Thu, 27 Nov
Delta Logo
14:30 - 15:45PWM-DUB
20h 15m2 stops
Delta Logo
09:45 - 14:07DUB-PWM
33h 22m2 stops
€454Delta
Find Deal
Wed, 19 Nov - Thu, 27 Nov
American Airlines Logo
15:52 - 11:30PWM-SNN
14h 38m2 stops
American Airlines Logo
07:50 - 22:54SNN-PWM
20h 04m2 stops
€480American Airlines
Find Deal
Fri, 14 Nov - Tue, 18 Nov
American Airlines Logo
15:52 - 10:15PWM-DUB
13h 23m2 stops
American Airlines Logo
11:30 - 22:54DUB-PWM
16h 24m1 stop
€490American Airlines
Find Deal
Fri, 14 Nov - Tue, 18 Nov
United Airlines Logo
14:10 - 10:20PWM-DUB
15h 10m1 stop
United Airlines Logo
09:30 - 18:13DUB-PWM
12h 43m1 stop
€491United Airlines
Find Deal
Wed, 4 Mar - Sun, 8 Mar
Multiple Airlines Logo
10:45 - 07:10PWM-DUB
15h 25m2 stops
Multiple Airlines Logo
08:45 - 23:17DUB-PWM
19h 32m3 stops
€990Multiple Airlines
Find Deal
Tue, 11 Nov - Tue, 18 Nov

United Airlines flights from Portland, Maine to Ireland

Our best United Airlines deals on Portland, Maine to Ireland flight tickets
United Airlines
19 Nov
PWM15:00Portland
11h 30m
1 stop
DUB07:30Dublin
27 Nov
DUB12:05Dublin
11h 54m
1 stop
PWM18:59Portland
United Airlines
4 Mar
PWM14:10Portland
15h 10m
1 stop
DUB10:20Dublin
8 Mar
DUB09:30Dublin
12h 43m
1 stop
PWM18:13Portland
United Airlines
14 Nov
PWM09:45Portland
17h 25m
1 stop
DUB08:10Dublin
18 Nov
DUB12:05Dublin
11h 54m
1 stop
PWM18:59Portland

KLM flights from Portland, Maine to Ireland

Our best KLM deals on Portland, Maine to Ireland flight tickets
KLM
19 Oct
PWM06:50Portland
21h 25m
1 stop
DUB09:15Dublin
4 Nov
DUB10:45Dublin
18h 20m
1 stop
PWM00:05Portland
KLM
11 Nov
PWM14:30Portland
13h 15m
1 stop
DUB08:45Dublin
18 Nov
DUB10:45Dublin
18h 09m
1 stop
PWM23:54Portland
KLM
14 Nov
PWM14:30Portland
13h 15m
1 stop
DUB08:45Dublin
18 Nov
DUB10:45Dublin
18h 09m
1 stop
PWM23:54Portland

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 18 September 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

Sun 19/10

06:50-09:15

1 stop21h 25m

Dublin

Tue 4/11

10:45-00:05

1 stop18h 20m

€419

PortlandDublin

PWM - DUB

PWMDUB

Portland

Tue 11/11

14:30-08:45

1 stop13h 15m

Dublin

Tue 18/11

10:45-23:54

1 stop18h 09m

€425

PortlandDublin

PWM - DUB

PWMDUB

Portland

Tue 11/11

14:30-09:20

2 stops13h 50m

Dublin

Tue 18/11

10:45-23:54

1 stop18h 09m

€428

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 19/11

06:00-07:45

1 stop20h 45m

Dublin

Thu 27/11

09:45-14:07

2 stops33h 22m

€437

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 19/11

15:00-07:30

1 stop11h 30m

Dublin

Thu 27/11

12:05-18:59

1 stop11h 54m

€449

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 19/11

14:30-15:45

2 stops20h 15m

Dublin

Thu 27/11

09:45-14:07

2 stops33h 22m

€454

PortlandShannon

PWM - SNN

PWMSNN

Portland

Fri 14/11

15:52-11:30

2 stops14h 38m

Shannon

Tue 18/11

07:50-22:54

2 stops20h 04m

€480

PortlandDublin

PWM - DUB

PWMDUB

Portland

Fri 14/11

15:52-10:15

2 stops13h 23m

Dublin

Tue 18/11

11:30-22:54

1 stop16h 24m

€490

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 4/3

14:10-10:20

1 stop15h 10m

Dublin

Sun 8/3

09:30-18:13

1 stop12h 43m

€491

PortlandDublin

PWM - DUB

PWMDUB

Portland

Tue 11/11

10:45-07:10

2 stops15h 25m

Dublin

Tue 18/11

08:45-23:17

3 stops19h 32m

€990

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

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.
  • 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.

  • How do I get Price Alerts for flights from Portland, Maine to Ireland?

    Confirm your travel details to search for the latest offers for flights from Portland, Maine to Ireland. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

  • How can I save money on flights from Portland, Maine to Ireland with momondo?

    By using tools like our “Price Calendar”, you can see the best days for return flights on your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

  • How does momondo find its flight prices?

    We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

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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1 adult
Sat 18/10
Sat 25/10

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