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Cheap flights from Portland, Maine to Ireland from €159

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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Cheap return flights

Enter your travel dates to find the best prices.
KLM Logo
14:35 - 08:45
PWM
-
DUB
13h 10m1 stop
KLM Logo
10:45 - 00:18
DUB
-
PWM
18h 33m1 stop
€393KLM
Thu, 5 Feb - Thu, 12 Feb
Delta Logo
12:10 - 08:45
PWM
-
DUB
15h 35m2 stops
Delta Logo
10:45 - 00:18
DUB
-
PWM
18h 33m1 stop
€396Delta
Thu, 5 Feb - Thu, 12 Feb
American Airlines Logo
12:40 - 09:10
PWM
-
DUB
15h 30m2 stops
American Airlines Logo
11:30 - 23:50
DUB
-
PWM
17h 20m2 stops
€410American Airlines
Thu, 5 Feb - Thu, 12 Feb
American Airlines Logo
17:45 - 10:15
PWM
-
DUB
11h 30m1 stop
American Airlines Logo
11:35 - 23:10
DUB
-
PWM
16h 35m1 stop
€418American Airlines
Fri, 1 May - Fri, 8 May
Multiple Airlines Logo
14:35 - 15:45
PWM
-
DUB
20h 10m2 stops
Multiple Airlines Logo
10:45 - 00:18
DUB
-
PWM
18h 33m1 stop
€418Multiple Airlines
Mon, 16 Feb - Mon, 23 Feb
Air Canada Logo
15:12 - 15:45
PWM
-
SNN
19h 33m3 stops
Air Canada Logo
07:50 - 23:20
SNN
-
PWM
20h 30m3 stops
€592Air Canada
Fri, 6 Feb - Mon, 16 Feb
Air Canada Logo
06:00 - 11:30
PWM
-
SNN
24h 30m3 stops
Air Canada Logo
07:50 - 23:20
SNN
-
PWM
20h 30m3 stops
€595Air Canada
Thu, 19 Feb - Thu, 26 Feb
Multiple Airlines Logo
05:30 - 11:30
PWM
-
SNN
25h 00m2 stops
Multiple Airlines Logo
17:30 - 23:06
SNN
-
PWM
34h 36m2 stops
€627Multiple Airlines
Fri, 6 Feb - Mon, 16 Feb
United Airlines Logo
19:12 - 10:15
PWM
-
SNN
10h 03m1 stop
United Airlines Logo
12:30 - 18:40
SNN
-
PWM
11h 10m1 stop
€769United Airlines
Wed, 15 Apr - Sat, 25 Apr
United Airlines Logo
09:30 - 10:15
PWM
-
SNN
19h 45m2 stops
United Airlines Logo
12:30 - 18:40
SNN
-
PWM
11h 10m1 stop
€774United Airlines
Wed, 15 Apr - Sat, 25 Apr

KLM flights from Portland, Maine to Ireland

Our best KLM deals on Portland, Maine to Ireland flight tickets
KLM
5 Feb
PWM14:35Portland
13h 10m
1 stop
DUB08:45Dublin
12 Feb
DUB10:45Dublin
18h 33m
1 stop
PWM00:18Portland
€393
Find similar
KLM
21 Feb
PWM14:35Portland
13h 10m
1 stop
DUB08:45Dublin
28 Feb
DUB09:45Dublin
18h 21m
1 stop
PWM23:06Portland
€414
Find similar
KLM
24 Mar
PWM14:30Portland
14h 15m
1 stop
DUB08:45Dublin
31 Mar
DUB05:55Dublin
15h 11m
2 stops
PWM16:06Portland
€446
Find similar

Delta flights from Portland, Maine to Ireland

Our best Delta deals on Portland, Maine to Ireland flight tickets
Delta
5 Feb
PWM12:10Portland
15h 35m
2 stops
DUB08:45Dublin
12 Feb
DUB10:45Dublin
18h 33m
1 stop
PWM00:18Portland
€396
Find similar
Delta
6 Feb
PWM14:35Portland
13h 10m
1 stop
DUB08:45Dublin
16 Feb
DUB05:55Dublin
22h 11m
2 stops
PWM23:06Portland
€412
Find similar
Delta
6 Feb
PWM12:10Portland
15h 35m
2 stops
DUB08:45Dublin
16 Feb
DUB05:55Dublin
22h 11m
2 stops
PWM23:06Portland
€416
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 7 January 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

PortlandDublin

PWM - DUB

PWMDUB

Portland

Thu 5/2

14:35-08:45

1 stop13h 10m

Dublin

Thu 12/2

10:45-00:18

1 stop18h 33m

€393

PortlandDublin

PWM - DUB

PWMDUB

Portland

Thu 5/2

12:10-08:45

2 stops15h 35m

Dublin

Thu 12/2

10:45-00:18

1 stop18h 33m

€396

PortlandDublin

PWM - DUB

PWMDUB

Portland

Thu 5/2

12:40-09:10

2 stops15h 30m

Dublin

Thu 12/2

11:30-23:50

2 stops17h 20m

€410

PortlandDublin

PWM - DUB

PWMDUB

Portland

Fri 1/5

17:45-10:15

1 stop11h 30m

Dublin

Fri 8/5

11:35-23:10

1 stop16h 35m

€418

PortlandDublin

PWM - DUB

PWMDUB

Portland

Mon 16/2

14:35-15:45

2 stops20h 10m

Dublin

Mon 23/2

10:45-00:18

1 stop18h 33m

€418

PortlandShannon

PWM - SNN

PWMSNN

Portland

Fri 6/2

15:12-15:45

3 stops19h 33m

Shannon

Mon 16/2

07:50-23:20

3 stops20h 30m

€592

PortlandShannon

PWM - SNN

PWMSNN

Portland

Thu 19/2

06:00-11:30

3 stops24h 30m

Shannon

Thu 26/2

07:50-23:20

3 stops20h 30m

€595

PortlandShannon

PWM - SNN

PWMSNN

Portland

Fri 6/2

05:30-11:30

2 stops25h 00m

Shannon

Mon 16/2

17:30-23:06

2 stops34h 36m

€627

PortlandShannon

PWM - SNN

PWMSNN

Portland

Wed 15/4

19:12-10:15

1 stop10h 03m

Shannon

Sat 25/4

12:30-18:40

1 stop11h 10m

€769

PortlandShannon

PWM - SNN

PWMSNN

Portland

Wed 15/4

09:30-10:15

2 stops19h 45m

Shannon

Sat 25/4

12:30-18:40

1 stop11h 10m

€774

Flights are sorted by cheapest return flights first.

Showing 1-10 of 17 resultsSorted by cheapest first
1
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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 and Air France 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 07m

Direct flights

None
The fastest flight from Portland, Maine to Ireland takes 10h 07m
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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Find better results for your trip to Ireland

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