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Cheap flights from Portland, Maine to Ireland from €167

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.
American Airlines Logo
12:49 - 09:10
PWM
-
DUB
15h 21m
2 stops
American Airlines Logo
11:30 - 18:04
DUB
-
PWM
10h 34m
1 stop
€366American Airlines
Tue, 3 Mar - Tue, 10 Mar
American Airlines Logo
12:49 - 09:10
PWM
-
DUB
15h 21m
2 stops
American Airlines Logo
11:30 - 23:55
DUB
-
PWM
16h 25m
2 stops
€371American Airlines
Tue, 3 Mar - Tue, 10 Mar
American Airlines Logo
17:40 - 10:20
PWM
-
DUB
11h 40m
1 stop
American Airlines Logo
11:30 - 18:04
DUB
-
PWM
10h 34m
1 stop
€374American Airlines
Tue, 3 Mar - Tue, 10 Mar
United Airlines Logo
19:31 - 09:55
PWM
-
DUB
9h 24m
1 stop
United Airlines Logo
12:05 - 19:13
DUB
-
PWM
11h 08m
1 stop
€417United Airlines
Tue, 3 Mar - Tue, 10 Mar
Delta Logo
06:16 - 08:00
PWM
-
DUB
20h 44m
2 stops
Delta Logo
13:25 - 00:20
DUB
-
PWM
15h 55m
2 stops
€420Delta
Thu, 29 Jan - Tue, 3 Feb
Delta Logo
06:16 - 08:00
PWM
-
DUB
20h 44m
2 stops
Delta Logo
10:45 - 00:20
DUB
-
PWM
18h 35m
1 stop
€422Delta
Thu, 29 Jan - Wed, 4 Feb
American Airlines Logo
06:00 - 08:40
PWM
-
DUB
21h 40m
1 stop
American Airlines Logo
11:30 - 22:59
DUB
-
PWM
16h 29m
1 stop
€422American Airlines
Mon, 9 Feb - Mon, 23 Feb
Delta Logo
06:17 - 08:05
PWM
-
DUB
20h 48m
2 stops
Delta Logo
08:50 - 13:45
DUB
-
PWM
33h 55m
2 stops
€424Delta
Fri, 30 Jan - Sun, 1 Feb
United Airlines Logo
15:12 - 07:30
PWM
-
DUB
11h 18m
1 stop
United Airlines Logo
09:00 - 14:39
DUB
-
PWM
34h 39m
2 stops
€462United Airlines
Fri, 30 Jan - Wed, 4 Feb
Air Canada Logo
11:09 - 11:20
PWM
-
SNN
19h 11m
3 stops
Air Canada Logo
07:30 - 23:28
SNN
-
PWM
20h 58m
3 stops
€2,829Air Canada
Wed, 15 Apr - Sat, 25 Apr

American Airlines flights from Portland, Maine to Ireland

Our best American Airlines deals on Portland, Maine to Ireland flight tickets
American Airlines
3 Mar
PWM12:49Portland
15h 21m
2 stops
DUB09:10Dublin
10 Mar
DUB11:30Dublin
10h 34m
1 stop
PWM18:04Portland
€366
American Airlines
3 Mar
PWM12:49Portland
15h 21m
2 stops
DUB09:10Dublin
10 Mar
DUB11:30Dublin
16h 25m
2 stops
PWM23:55Portland
€371
American Airlines
3 Mar
PWM17:40Portland
11h 40m
1 stop
DUB10:20Dublin
10 Mar
DUB11:30Dublin
10h 34m
1 stop
PWM18:04Portland
€374

Delta flights from Portland, Maine to Ireland

Our best Delta deals on Portland, Maine to Ireland flight tickets
Delta
26 Jan
PWM06:17Portland
21h 28m
1 stop
DUB08:45Dublin
2 Feb
DUB08:50Dublin
20h 30m
2 stops
PWM00:20Portland
€416
Delta
26 Jan
PWM06:17Portland
21h 28m
1 stop
DUB08:45Dublin
3 Feb
DUB10:45Dublin
32h 00m
1 stop
PWM13:45Portland
€417
Delta
29 Jan
PWM06:16Portland
20h 44m
2 stops
DUB08:00Dublin
3 Feb
DUB13:25Dublin
15h 55m
2 stops
PWM00:20Portland
€420

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 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

Tue 3/3

12:49-09:10

2 stops15h 21m

Dublin

Tue 10/3

11:30-18:04

1 stop10h 34m

€366

PortlandDublin

PWM - DUB

PWMDUB

Portland

Tue 3/3

12:49-09:10

2 stops15h 21m

Dublin

Tue 10/3

11:30-23:55

2 stops16h 25m

€371

PortlandDublin

PWM - DUB

PWMDUB

Portland

Tue 3/3

17:40-10:20

1 stop11h 40m

Dublin

Tue 10/3

11:30-18:04

1 stop10h 34m

€374

PortlandDublin

PWM - DUB

PWMDUB

Portland

Tue 3/3

19:31-09:55

1 stop9h 24m

Dublin

Tue 10/3

12:05-19:13

1 stop11h 08m

€417

PortlandDublin

PWM - DUB

PWMDUB

Portland

Thu 29/1

06:16-08:00

2 stops20h 44m

Dublin

Tue 3/2

13:25-00:20

2 stops15h 55m

€420

PortlandDublin

PWM - DUB

PWMDUB

Portland

Thu 29/1

06:16-08:00

2 stops20h 44m

Dublin

Wed 4/2

10:45-00:20

1 stop18h 35m

€422

PortlandDublin

PWM - DUB

PWMDUB

Portland

Mon 9/2

06:00-08:40

1 stop21h 40m

Dublin

Mon 23/2

11:30-22:59

1 stop16h 29m

€422

PortlandDublin

PWM - DUB

PWMDUB

Portland

Fri 30/1

06:17-08:05

2 stops20h 48m

Dublin

Sun 1/2

08:50-13:45

2 stops33h 55m

€424

PortlandDublin

PWM - DUB

PWMDUB

Portland

Fri 30/1

15:12-07:30

1 stop11h 18m

Dublin

Wed 4/2

09:00-14:39

2 stops34h 39m

€462

PortlandShannon

PWM - SNN

PWMSNN

Portland

Wed 15/4

11:09-11:20

3 stops19h 11m

Shannon

Sat 25/4

07:30-23:28

3 stops20h 58m

€2,829

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, Air Canada, 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

13h 50m

Direct flights

None
The fastest flight from Portland, Maine to Ireland takes 13h 50m
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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