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Cheap flights from Portland, Maine to Ireland from €318

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 19/7. 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
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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.
JetBlue Logo
14:40 - 09:00
PWM
-
DUB
13h 20m
1 stop
JetBlue Logo
11:30 - 00:14
DUB
-
PWM
17h 44m
1 stop
€568JetBlue
Mon, 24 Aug - Wed, 2 Sep
United Airlines Logo
14:45 - 10:20
PWM
-
DUB
14h 35m
1 stop
United Airlines Logo
09:00 - 21:27
DUB
-
PWM
41h 27m
2 stops
€586United Airlines
Wed, 2 Dec - Sun, 6 Dec
Air Canada Logo
15:15 - 07:10
PWM
-
DUB
34h 55m
2 stops
Air Canada Logo
09:00 - 16:09
DUB
-
PWM
36h 09m
2 stops
€593Air Canada
Wed, 2 Dec - Sun, 6 Dec
American Airlines Logo
15:53 - 09:35
PWM
-
DUB
12h 42m
2 stops
American Airlines Logo
11:30 - 22:33
DUB
-
PWM
16h 03m
2 stops
€605American Airlines
Tue, 10 Nov - Tue, 24 Nov
Delta Logo
10:00 - 08:45
PWM
-
DUB
17h 45m
1 stop
Delta Logo
08:50 - 22:23
DUB
-
PWM
18h 33m
2 stops
€606Delta
Tue, 10 Nov - Tue, 24 Nov
Delta Logo
10:00 - 08:45
PWM
-
DUB
17h 45m
1 stop
Delta Logo
08:50 - 22:23
DUB
-
PWM
18h 33m
2 stops
€607Delta
Tue, 10 Nov - Tue, 24 Nov
Delta Logo
06:00 - 07:45
PWM
-
DUB
20h 45m
1 stop
Delta Logo
10:45 - 23:49
DUB
-
PWM
18h 04m
1 stop
€609Delta
Tue, 10 Nov - Tue, 24 Nov
KLM Logo
14:53 - 09:15
PWM
-
DUB
13h 22m
1 stop
KLM Logo
05:55 - 16:01
DUB
-
PWM
15h 06m
2 stops
€610KLM
Mon, 24 Aug - Wed, 2 Sep
United Airlines Logo
07:40 - 07:30
PWM
-
SNN
18h 50m
1 stop
United Airlines Logo
12:30 - 23:32
SNN
-
PWM
16h 02m
1 stop
€611United Airlines
Thu, 13 Aug - Sun, 23 Aug
KLM Logo
16:52 - 10:00
PWM
-
DUB
12h 08m
1 stop
KLM Logo
11:00 - 23:13
DUB
-
PWM
17h 13m
1 stop
€613KLM
Wed, 29 Jul - Thu, 27 Aug

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American Airlines flights from Portland, Maine to Ireland

Our best American Airlines deals on Portland, Maine to Ireland flight tickets
American Airlines
10 Nov
PWM15:53Portland
12h 42m
2 stops
DUB09:35Dublin
24 Nov
DUB11:30Dublin
16h 03m
2 stops
PWM22:33Portland
€605
American Airlines
19 Sept
PWM17:42Portland
13h 18m
2 stops
DUB12:00Dublin
30 Sept
DUB11:45Dublin
15h 28m
1 stop
PWM22:13Portland
€631
American Airlines
9 Aug
PWM07:33Portland
17h 57m
1 stop
DUB06:30Dublin
16 Aug
DUB11:45Dublin
14h 36m
2 stops
PWM21:21Portland
€643

Delta flights from Portland, Maine to Ireland

Our best Delta deals on Portland, Maine to Ireland flight tickets
Delta
10 Nov
PWM10:00Portland
17h 45m
1 stop
DUB08:45Dublin
24 Nov
DUB08:50Dublin
18h 33m
2 stops
PWM22:23Portland
€606
Delta
10 Nov
PWM10:00Portland
17h 45m
1 stop
DUB08:45Dublin
24 Nov
DUB08:50Dublin
18h 33m
2 stops
PWM22:23Portland
€607
Delta
10 Nov
PWM06:00Portland
20h 45m
1 stop
DUB07:45Dublin
24 Nov
DUB10:45Dublin
18h 04m
1 stop
PWM23:49Portland
€609

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 17 June 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 - DUB

PWMDUB

Portland

Mon 24/8

14:40-09:00

1 stop13h 20m

Dublin

Wed 2/9

11:30-00:14

1 stop17h 44m

€568

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 2/12

14:45-10:20

1 stop14h 35m

Dublin

Sun 6/12

09:00-21:27

2 stops41h 27m

€586

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 2/12

15:15-07:10

2 stops34h 55m

Dublin

Sun 6/12

09:00-16:09

2 stops36h 09m

€593

PortlandDublin

PWM - DUB

PWMDUB

Portland

Tue 10/11

15:53-09:35

2 stops12h 42m

Dublin

Tue 24/11

11:30-22:33

2 stops16h 03m

€605

PortlandDublin

PWM - DUB

PWMDUB

Portland

Tue 10/11

10:00-08:45

1 stop17h 45m

Dublin

Tue 24/11

08:50-22:23

2 stops18h 33m

€606

PortlandDublin

PWM - DUB

PWMDUB

Portland

Tue 10/11

10:00-08:45

1 stop17h 45m

Dublin

Tue 24/11

08:50-22:23

2 stops18h 33m

€607

PortlandDublin

PWM - DUB

PWMDUB

Portland

Tue 10/11

06:00-07:45

1 stop20h 45m

Dublin

Tue 24/11

10:45-23:49

1 stop18h 04m

€609
Fastest return journey

PortlandDublin

PWM - DUB

PWMDUB

Portland

Mon 24/8

14:53-09:15

1 stop13h 22m

Dublin

Wed 2/9

05:55-16:01

2 stops15h 06m

€610

PortlandShannon

PWM - SNN

PWMSNN

Portland

Thu 13/8

07:40-07:30

1 stop18h 50m

Shannon

Sun 23/8

12:30-23:32

1 stop16h 02m

€611

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 29/7

16:52-10:00

1 stop12h 08m

Dublin

Thu 27/8

11:00-23:13

1 stop17h 13m

€613

Flights are sorted by cheapest return flights first.

Showing 1-10 of 16 resultsSorted by cheapest first
1
2

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 and Delta 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

11h 48m

Direct flights

None
The fastest flight from Portland, Maine to Ireland takes 11h 48m
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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Find better results for your trip to Ireland

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