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Cheap flights from Portland, Maine to Ireland from €281

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 11/1. 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
1 adult, Economy, 0 bags

Find the cheapest flights from Portland, Maine to Ireland

Cheap return flights

Enter your travel dates to find the best prices.
Delta Logo
16:03 - 08:45PWM  Portland-DUB Dublin
11h 42m1 stop New York John F Kennedy Intl
Delta Logo
08:50 - 23:33DUB  Dublin-PWM Portland
19h 43m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson
€607Delta
Tue, 10 Nov - Tue, 24 Nov
United Airlines Logo
14:05 - 10:20PWM  Portland-DUB Dublin
15h 15m1 stop Washington, D.C. Dulles Intl
United Airlines Logo
12:05 - 23:59DUB  Dublin-PWM Portland
16h 54m1 stop Washington, D.C. Dulles Intl
€610United Airlines
Tue, 10 Nov - Tue, 24 Nov
Delta Logo
06:00 - 14:30PWM  Portland-DUB Dublin
27h 30m2 stops New York John F Kennedy Intl Paris Charles de Gaulle
Delta Logo
05:45 - 23:33DUB  Dublin-PWM Portland
22h 48m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson
€611Delta
Tue, 10 Nov - Tue, 24 Nov
United Airlines Logo
08:00 - 07:30PWM  Portland-SNN Shannon
18h 30m1 stop Chicago O'Hare Intl
United Airlines Logo
12:30 - 23:32SNN  Shannon-PWM Portland
16h 02m1 stop Newark
€613United Airlines
Fri, 11 Sep - Tue, 15 Sep
United Airlines Logo
10:50 - 10:15PWM  Portland-SNN Shannon
18h 25m1 stop Newark
United Airlines Logo
09:30 - 23:32SNN  Shannon-PWM Portland
19h 02m2 stops Chicago O'Hare Intl Newark
€616United Airlines
Fri, 11 Sep - Tue, 15 Sep
United Airlines Logo
09:49 - 07:30PWM  Portland-SNN Shannon
16h 41m2 stops Washington, D.C. Dulles Intl Chicago O'Hare Intl
United Airlines Logo
12:30 - 23:32SNN  Shannon-PWM Portland
16h 02m1 stop Newark
€617United Airlines
Fri, 11 Sep - Tue, 15 Sep
United Airlines Logo
14:38 - 07:20PWM  Portland-DUB Dublin
11h 42m1 stop Washington, D.C. Dulles Intl
United Airlines Logo
09:20 - 23:32DUB  Dublin-PWM Portland
19h 12m2 stops Toronto Pearson Intl Newark
€619United Airlines
Sat, 12 Sep - Sat, 19 Sep
United Airlines Logo
09:45 - 08:10PWM  Portland-DUB Dublin
17h 25m1 stop Chicago O'Hare Intl
United Airlines Logo
10:40 - 21:27DUB  Dublin-PWM Portland
15h 47m1 stop Chicago O'Hare Intl
€620United Airlines
Tue, 9 Feb - Fri, 12 Feb
United Airlines Logo
15:47 - 07:30PWM  Portland-DUB Dublin
10h 43m1 stop Newark
United Airlines Logo
09:30 - 23:32DUB  Dublin-PWM Portland
19h 02m1 stop Newark
€621United Airlines
Thu, 10 Sep - Thu, 17 Sep
United Airlines Logo
15:47 - 10:40PWM  Portland-DUB Dublin
13h 53m2 stops Newark Washington, D.C. Dulles Intl
United Airlines Logo
09:20 - 09:08DUB  Dublin-PWM Portland
28h 48m2 stops Toronto Pearson Intl Newark
€622United Airlines
Sat, 12 Sep - Sat, 19 Sep

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Delta flights from Portland, Maine to Ireland

Our best Delta deals on Portland, Maine to Ireland flight tickets
Delta
10 Nov
PWM16:03Portland
11h 42m
1 stop
DUB08:45Dublin
24 Nov
DUB08:50Dublin
19h 43m
2 stops
PWM23:33Portland
€607
Delta
10 Nov
PWM06:00Portland
27h 30m
2 stops
DUB14:30Dublin
24 Nov
DUB05:45Dublin
22h 48m
2 stops
PWM23:33Portland
€611
Delta
17 Aug
PWM11:50Portland
15h 05m
1 stop
DUB07:55Dublin
23 Aug
DUB13:25Dublin
31h 36m
2 stops
PWM16:01Portland
€662

United Airlines flights from Portland, Maine to Ireland

Our best United Airlines deals on Portland, Maine to Ireland flight tickets
United Airlines
10 Nov
PWM14:05Portland
15h 15m
1 stop
DUB10:20Dublin
24 Nov
DUB12:05Dublin
16h 54m
1 stop
PWM23:59Portland
€610
United Airlines
11 Sept
PWM08:00Portland
18h 30m
1 stop
SNN07:30Shannon
15 Sept
SNN12:30Shannon
16h 02m
1 stop
PWM23:32Portland
€613
United Airlines
11 Sept
PWM10:50Portland
18h 25m
1 stop
SNN10:15Shannon
15 Sept
SNN09:30Shannon
19h 02m
2 stops
PWM23:32Portland
€616

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 August 2026.
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

Cheapest return flight

PortlandDublin

PWM Portland - DUB Dublin

PWMDUB

Portland

Tue 10/11

16:03-08:45

1 stop11h 42m

Dublin

Tue 24/11

08:50-23:33

2 stops19h 43m

€607

PortlandDublin

PWM Portland - DUB Dublin

PWMDUB

Portland

Tue 10/11

14:05-10:20

1 stop15h 15m

Dublin

Tue 24/11

12:05-23:59

1 stop16h 54m

€610

PortlandDublin

PWM Portland - DUB Dublin

PWMDUB

Portland

Tue 10/11

06:00-14:30

2 stops27h 30m

Dublin

Tue 24/11

05:45-23:33

2 stops22h 48m

€611

PortlandShannon

PWM Portland - SNN Shannon

PWMSNN

Portland

Fri 11/9

08:00-07:30

1 stop18h 30m

Shannon

Tue 15/9

12:30-23:32

1 stop16h 02m

€613

PortlandShannon

PWM Portland - SNN Shannon

PWMSNN

Portland

Fri 11/9

10:50-10:15

1 stop18h 25m

Shannon

Tue 15/9

09:30-23:32

2 stops19h 02m

€616

PortlandShannon

PWM Portland - SNN Shannon

PWMSNN

Portland

Fri 11/9

09:49-07:30

2 stops16h 41m

Shannon

Tue 15/9

12:30-23:32

1 stop16h 02m

€617

PortlandDublin

PWM Portland - DUB Dublin

PWMDUB

Portland

Sat 12/9

14:38-07:20

1 stop11h 42m

Dublin

Sat 19/9

09:20-23:32

2 stops19h 12m

€619

PortlandDublin

PWM Portland - DUB Dublin

PWMDUB

Portland

Tue 9/2

09:45-08:10

1 stop17h 25m

Dublin

Fri 12/2

10:40-21:27

1 stop15h 47m

€620
Fastest return journey

PortlandDublin

PWM Portland - DUB Dublin

PWMDUB

Portland

Thu 10/9

15:47-07:30

1 stop10h 43m

Dublin

Thu 17/9

09:30-23:32

1 stop19h 02m

€621

PortlandDublin

PWM Portland - DUB Dublin

PWMDUB

Portland

Sat 12/9

15:47-10:40

2 stops13h 53m

Dublin

Sat 19/9

09:20-09:08

2 stops28h 48m

€622

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 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?

American Airlines, Delta, 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

Fastest flight time

10h 05m

Direct flights

None
The fastest flight from Portland, Maine to Ireland takes 10h 05m
There are no direct flights from Portland, Maine to Ireland. There are no popular flight routes from Portland, Maine to Ireland.
Search flight deals

Frequently asked questions about flying 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.

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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