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Cheap flights from Portland, Maine to Ireland from €280

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 15/9. 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.
Austrian Airlines Logo
11:17 - 07:30
PWM
-
DUB
15h 13m
1 stop
Austrian Airlines Logo
09:30 - 18:13
DUB
-
PWM
13h 43m
1 stop
€568Austrian Airlines
Tue, 10 Nov - Tue, 24 Nov
Austrian Airlines Logo
11:17 - 07:30
PWM
-
DUB
15h 13m
1 stop
Austrian Airlines Logo
09:30 - 18:13
DUB
-
PWM
13h 43m
1 stop
€590Austrian Airlines
Tue, 10 Nov - Tue, 24 Nov
Austrian Airlines Logo
10:45 - 07:30
PWM
-
DUB
15h 45m
1 stop
Austrian Airlines Logo
09:30 - 18:29
DUB
-
PWM
13h 59m
1 stop
€594Austrian Airlines
Sat, 5 Sep - Mon, 14 Sep
Multiple Airlines Logo
10:45 - 07:30
PWM
-
DUB
15h 45m
1 stop
Multiple Airlines Logo
09:20 - 23:32
DUB
-
PWM
19h 12m
2 stops
€604Multiple Airlines
Sat, 5 Sep - Mon, 14 Sep
KLM Logo
06:00 - 07:45
PWM
-
DUB
20h 45m
1 stop
KLM Logo
13:25 - 23:49
DUB
-
PWM
15h 24m
2 stops
€606KLM
Tue, 10 Nov - Tue, 17 Nov
KLM Logo
13:35 - 07:45
PWM
-
DUB
13h 10m
1 stop
KLM Logo
09:40 - 22:23
DUB
-
PWM
17h 43m
1 stop
€608KLM
Tue, 10 Nov - Tue, 17 Nov
Lufthansa Logo
06:00 - 07:30
PWM
-
SNN
20h 30m
1 stop
Lufthansa Logo
12:30 - 18:29
SNN
-
PWM
10h 59m
1 stop
€608Lufthansa
Sun, 6 Sep - Mon, 14 Sep
United Airlines Logo
06:00 - 07:30
PWM
-
SNN
20h 30m
1 stop
United Airlines Logo
09:30 - 17:54
SNN
-
PWM
13h 24m
1 stop
€609United Airlines
Sat, 5 Sep - Mon, 14 Sep
Multiple Airlines Logo
14:35 - 09:45
PWM
-
DUB
14h 10m
2 stops
Multiple Airlines Logo
08:50 - 23:49
DUB
-
PWM
19h 59m
2 stops
€610Multiple Airlines
Tue, 10 Nov - Tue, 17 Nov
United Airlines Logo
06:00 - 07:45
PWM
-
DUB
20h 45m
2 stops
United Airlines Logo
09:20 - 23:59
DUB
-
PWM
19h 39m
2 stops
€611United Airlines
Fri, 4 Sep - Sat, 12 Sep

KLM flights from Portland, Maine to Ireland

Our best KLM deals on Portland, Maine to Ireland flight tickets
KLM
10 Nov
PWM13:35Portland
13h 10m
1 stop
DUB07:45Dublin
24 Nov
DUB08:50Dublin
19h 59m
2 stops
PWM23:49Portland
€606
KLM
10 Nov
PWM13:35Portland
13h 10m
1 stop
DUB07:45Dublin
17 Nov
DUB09:40Dublin
17h 43m
1 stop
PWM22:23Portland
€608
KLM
4 Oct
PWM11:50Portland
15h 05m
1 stop
DUB07:55Dublin
13 Oct
DUB13:15Dublin
15h 34m
1 stop
PWM23:49Portland
€665

Delta flights from Portland, Maine to Ireland

Our best Delta deals on Portland, Maine to Ireland flight tickets
Delta
10 Nov
PWM12:50Portland
13h 55m
2 stops
DUB07:45Dublin
24 Nov
DUB05:45Dublin
21h 38m
2 stops
PWM22:23Portland
€609
Delta
12 Sept
PWM06:00Portland
21h 45m
1 stop
DUB08:45Dublin
18 Sept
DUB05:55Dublin
22h 30m
2 stops
PWM23:25Portland
€639
Delta
12 Sept
PWM06:30Portland
20h 45m
2 stops
DUB08:15Dublin
18 Sept
DUB05:55Dublin
23h 04m
2 stops
PWM23:59Portland
€644

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 28 May 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
Fastest return journey

PortlandDublin

PWM - DUB

PWMDUB

Portland

Tue 10/11

11:17-07:30

1 stop15h 13m

Dublin

Tue 24/11

09:30-18:13

1 stop13h 43m

€568

PortlandDublin

PWM - DUB

PWMDUB

Portland

Tue 10/11

11:17-07:30

1 stop15h 13m

Dublin

Tue 24/11

09:30-18:13

1 stop13h 43m

€590

PortlandDublin

PWM - DUB

PWMDUB

Portland

Sat 5/9

10:45-07:30

1 stop15h 45m

Dublin

Mon 14/9

09:30-18:29

1 stop13h 59m

€594

PortlandDublin

PWM - DUB

PWMDUB

Portland

Sat 5/9

10:45-07:30

1 stop15h 45m

Dublin

Mon 14/9

09:20-23:32

2 stops19h 12m

€604

PortlandDublin

PWM - DUB

PWMDUB

Portland

Tue 10/11

06:00-07:45

1 stop20h 45m

Dublin

Tue 17/11

13:25-23:49

2 stops15h 24m

€606

PortlandDublin

PWM - DUB

PWMDUB

Portland

Tue 10/11

13:35-07:45

1 stop13h 10m

Dublin

Tue 17/11

09:40-22:23

1 stop17h 43m

€608

PortlandShannon

PWM - SNN

PWMSNN

Portland

Sun 6/9

06:00-07:30

1 stop20h 30m

Shannon

Mon 14/9

12:30-18:29

1 stop10h 59m

€608

PortlandShannon

PWM - SNN

PWMSNN

Portland

Sat 5/9

06:00-07:30

1 stop20h 30m

Shannon

Mon 14/9

09:30-17:54

1 stop13h 24m

€609

PortlandDublin

PWM - DUB

PWMDUB

Portland

Tue 10/11

14:35-09:45

2 stops14h 10m

Dublin

Tue 17/11

08:50-23:49

2 stops19h 59m

€610

PortlandDublin

PWM - DUB

PWMDUB

Portland

Fri 4/9

06:00-07:45

2 stops20h 45m

Dublin

Sat 12/9

09:20-23:59

2 stops19h 39m

€611

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 month to fly to Ireland?

The month of February is another great option to travel to Ireland, with average flight prices from Portland, Maine averaging around €394.

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 22m

Direct flights

None
The fastest flight from Portland, Maine to Ireland takes 10h 22m
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.

An easier way to manage your Ireland trip

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Find better results for your trip to Ireland

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