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Cheap flights from Portland, Maine to Ireland from €219

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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Find the cheapest flights from Portland, Maine to Ireland

Cheap return flights

Enter your travel dates to find the best prices.
KLM Logo
14:51 - 09:15
PWM
-
DUB
13h 24m
1 stop
KLM Logo
13:15 - 00:46
DUB
-
PWM
16h 31m
1 stop
€468KLM
Fri, 1 May - Mon, 4 May
Delta Logo
14:51 - 09:15
PWM
-
DUB
13h 24m
1 stop
Delta Logo
11:00 - 12:05
DUB
-
PWM
30h 05m
2 stops
€473Delta
Fri, 1 May - Mon, 4 May
Delta Logo
06:30 - 09:15
PWM
-
DUB
21h 45m
1 stop
Delta Logo
10:00 - 23:23
DUB
-
PWM
18h 23m
2 stops
€477Delta
Fri, 1 May - Mon, 4 May
Delta Logo
06:30 - 08:20
PWM
-
DUB
20h 50m
2 stops
Delta Logo
10:00 - 23:23
DUB
-
PWM
18h 23m
2 stops
€490Delta
Fri, 1 May - Mon, 4 May
KLM Logo
14:38 - 09:15
PWM
-
DUB
13h 37m
1 stop
KLM Logo
10:00 - 16:07
DUB
-
PWM
11h 07m
1 stop
€497KLM
Sun, 10 May - Mon, 18 May
Delta Logo
14:38 - 09:15
PWM
-
DUB
13h 37m
1 stop
Delta Logo
10:00 - 23:09
DUB
-
PWM
18h 09m
2 stops
€501Delta
Sun, 10 May - Mon, 18 May
United Airlines Logo
17:05 - 07:30
PWM
-
SNN
33h 25m
1 stop
United Airlines Logo
09:30 - 22:01
SNN
-
PWM
17h 31m
1 stop
€672United Airlines
Sat, 22 Aug - Wed, 26 Aug
United Airlines Logo
17:05 - 07:30
PWM
-
SNN
33h 25m
1 stop
United Airlines Logo
09:30 - 10:02
SNN
-
PWM
29h 32m
2 stops
€676United Airlines
Sat, 22 Aug - Wed, 26 Aug
Lufthansa Logo
16:48 - 11:15
PWM
-
SNN
37h 27m
2 stops
Lufthansa Logo
12:30 - 18:14
SNN
-
PWM
10h 44m
1 stop
€774Lufthansa
Thu, 24 Sep - Wed, 7 Oct
Lufthansa Logo
16:48 - 11:15
PWM
-
SNN
37h 27m
2 stops
Lufthansa Logo
12:30 - 23:27
SNN
-
PWM
15h 57m
1 stop
€776Lufthansa
Thu, 24 Sep - Wed, 7 Oct

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JetBlue flights from Portland, Maine to Ireland

Our best JetBlue deals on Portland, Maine to Ireland flight tickets
JetBlue
1 Sept
PWM13:17Portland
14h 43m
1 stop
DUB09:00Dublin
15 Sept
DUB11:30Dublin
17h 22m
1 stop
PWM23:52Portland
€635
JetBlue
31 May
PWM06:00Portland
22h 00m
1 stop
DUB09:00Dublin
7 Jun
DUB11:30Dublin
17h 28m
1 stop
PWM23:58Portland
€736
JetBlue
31 May
PWM06:00Portland
22h 00m
1 stop
DUB09:00Dublin
5 Jun
DUB11:30Dublin
17h 28m
1 stop
PWM23:58Portland
€738

Delta flights from Portland, Maine to Ireland

Our best Delta deals on Portland, Maine to Ireland flight tickets
Delta
24 Apr
PWM05:21Portland
21h 34m
2 stops
DUB07:55Dublin
2 May
DUB13:15Dublin
16h 31m
1 stop
PWM00:46Portland
€472
Delta
24 Apr
PWM05:21Portland
21h 34m
2 stops
DUB07:55Dublin
2 May
DUB10:00Dublin
18h 23m
2 stops
PWM23:23Portland
€473
Delta
1 May
PWM06:30Portland
21h 45m
1 stop
DUB09:15Dublin
4 May
DUB10:00Dublin
18h 23m
2 stops
PWM23:23Portland
€477

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 April 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

Fri 1/5

14:51-09:15

1 stop13h 24m

Dublin

Mon 4/5

13:15-00:46

1 stop16h 31m

€468

PortlandDublin

PWM - DUB

PWMDUB

Portland

Fri 1/5

14:51-09:15

1 stop13h 24m

Dublin

Mon 4/5

11:00-12:05

2 stops30h 05m

€473

PortlandDublin

PWM - DUB

PWMDUB

Portland

Fri 1/5

06:30-09:15

1 stop21h 45m

Dublin

Mon 4/5

10:00-23:23

2 stops18h 23m

€477

PortlandDublin

PWM - DUB

PWMDUB

Portland

Fri 1/5

06:30-08:20

2 stops20h 50m

Dublin

Mon 4/5

10:00-23:23

2 stops18h 23m

€490
Fastest return journey

PortlandDublin

PWM - DUB

PWMDUB

Portland

Sun 10/5

14:38-09:15

1 stop13h 37m

Dublin

Mon 18/5

10:00-16:07

1 stop11h 07m

€497

PortlandDublin

PWM - DUB

PWMDUB

Portland

Sun 10/5

14:38-09:15

1 stop13h 37m

Dublin

Mon 18/5

10:00-23:09

2 stops18h 09m

€501

PortlandShannon

PWM - SNN

PWMSNN

Portland

Sat 22/8

17:05-07:30

1 stop33h 25m

Shannon

Wed 26/8

09:30-22:01

1 stop17h 31m

€672

PortlandShannon

PWM - SNN

PWMSNN

Portland

Sat 22/8

17:05-07:30

1 stop33h 25m

Shannon

Wed 26/8

09:30-10:02

2 stops29h 32m

€676

PortlandShannon

PWM - SNN

PWMSNN

Portland

Thu 24/9

16:48-11:15

2 stops37h 27m

Shannon

Wed 7/10

12:30-18:14

1 stop10h 44m

€774

PortlandShannon

PWM - SNN

PWMSNN

Portland

Thu 24/9

16:48-11:15

2 stops37h 27m

Shannon

Wed 7/10

12:30-23:27

1 stop15h 57m

€776

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 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?

KLM, 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

9h 00m

Direct flights

None
The fastest flight from Portland, Maine to Ireland takes 9h 00m
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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