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Cheap flights from Portland, Maine to Ireland from €233

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
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.
KLM Logo
14:51 - 09:15
PWM
-
DUB
13h 24m
1 stop
KLM Logo
13:15 - 00:46
DUB
-
PWM
16h 31m
1 stop
€478KLM
Mon, 27 Apr - Mon, 4 May
KLM Logo
14:51 - 09:15
PWM
-
DUB
13h 24m
1 stop
KLM Logo
10:00 - 16:07
DUB
-
PWM
11h 07m
1 stop
€479KLM
Sat, 2 May - Sat, 9 May
Delta Logo
12:46 - 09:15
PWM
-
DUB
15h 29m
2 stops
Delta Logo
10:00 - 23:23
DUB
-
PWM
18h 23m
2 stops
€482Delta
Mon, 27 Apr - Mon, 4 May
KLM Logo
18:57 - 08:45
PWM
-
DUB
32h 48m
1 stop
KLM Logo
13:15 - 23:59
DUB
-
PWM
15h 44m
1 stop
€484KLM
Sun, 9 Aug - Tue, 25 Aug
Delta Logo
06:30 - 08:20
PWM
-
DUB
20h 50m
2 stops
Delta Logo
13:15 - 00:46
DUB
-
PWM
16h 31m
1 stop
€495Delta
Fri, 24 Apr - Sat, 2 May
Multiple Airlines Logo
14:35 - 10:45
PWM
-
DUB
15h 10m
2 stops
Multiple Airlines Logo
13:25 - 23:59
DUB
-
PWM
15h 34m
2 stops
€499Multiple Airlines
Sat, 5 Sep - Sat, 19 Sep
United Airlines Logo
12:00 - 07:30
PWM
-
SNN
14h 30m
1 stop
United Airlines Logo
09:30 - 22:01
SNN
-
PWM
17h 31m
1 stop
€615United Airlines
Mon, 24 Aug - Wed, 26 Aug
United Airlines Logo
14:35 - 10:15
PWM
-
SNN
14h 40m
2 stops
United Airlines Logo
09:30 - 23:59
SNN
-
PWM
19h 29m
2 stops
€619United Airlines
Mon, 24 Aug - Wed, 26 Aug
Lufthansa Logo
17:06 - 10:15
PWM
-
SNN
12h 09m
1 stop
Lufthansa Logo
12:30 - 13:42
SNN
-
PWM
30h 12m
1 stop
€847Lufthansa
Thu, 24 Sep - Wed, 7 Oct
Multiple Airlines Logo
15:03 - 11:20
PWM
-
SNN
15h 17m
2 stops
Multiple Airlines Logo
07:30 - 23:24
SNN
-
PWM
20h 54m
2 stops
€889Multiple Airlines
Thu, 24 Sep - Wed, 7 Oct

Scandinavian Airlines flights from Portland, Maine to Ireland

Our best Scandinavian Airlines deals on Portland, Maine to Ireland flight tickets
Scandinavian Airlines
24 Apr
PWM06:30Portland
45h 55m
2 stops
DUB09:25Dublin
2 May
DUB19:05Dublin
34h 41m
2 stops
PWM00:46Portland
€719
Scandinavian Airlines
24 Apr
PWM06:30Portland
30h 50m
2 stops
DUB18:20Dublin
2 May
DUB19:05Dublin
34h 41m
2 stops
PWM00:46Portland
€745

United Airlines flights from Portland, Maine to Ireland

Our best United Airlines deals on Portland, Maine to Ireland flight tickets
United Airlines
24 Aug
PWM12:00Portland
14h 30m
1 stop
SNN07:30Shannon
26 Aug
SNN09:30Shannon
17h 31m
1 stop
PWM22:01Portland
€615
United Airlines
24 Aug
PWM14:35Portland
14h 40m
2 stops
SNN10:15Shannon
26 Aug
SNN09:30Shannon
19h 29m
2 stops
PWM23:59Portland
€619
United Airlines
5 Sept
PWM19:35Portland
30h 45m
1 stop
DUB07:20Dublin
19 Sept
DUB09:20Dublin
38h 59m
2 stops
PWM19:19Portland
€647

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 30 March 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 27/4

14:51-09:15

1 stop13h 24m

Dublin

Mon 4/5

13:15-00:46

1 stop16h 31m

€478
Fastest return journey

PortlandDublin

PWM - DUB

PWMDUB

Portland

Sat 2/5

14:51-09:15

1 stop13h 24m

Dublin

Sat 9/5

10:00-16:07

1 stop11h 07m

€479

PortlandDublin

PWM - DUB

PWMDUB

Portland

Mon 27/4

12:46-09:15

2 stops15h 29m

Dublin

Mon 4/5

10:00-23:23

2 stops18h 23m

€482

PortlandDublin

PWM - DUB

PWMDUB

Portland

Sun 9/8

18:57-08:45

1 stop32h 48m

Dublin

Tue 25/8

13:15-23:59

1 stop15h 44m

€484

PortlandDublin

PWM - DUB

PWMDUB

Portland

Fri 24/4

06:30-08:20

2 stops20h 50m

Dublin

Sat 2/5

13:15-00:46

1 stop16h 31m

€495

PortlandDublin

PWM - DUB

PWMDUB

Portland

Sat 5/9

14:35-10:45

2 stops15h 10m

Dublin

Sat 19/9

13:25-23:59

2 stops15h 34m

€499

PortlandShannon

PWM - SNN

PWMSNN

Portland

Mon 24/8

12:00-07:30

1 stop14h 30m

Shannon

Wed 26/8

09:30-22:01

1 stop17h 31m

€615

PortlandShannon

PWM - SNN

PWMSNN

Portland

Mon 24/8

14:35-10:15

2 stops14h 40m

Shannon

Wed 26/8

09:30-23:59

2 stops19h 29m

€619

PortlandShannon

PWM - SNN

PWMSNN

Portland

Thu 24/9

17:06-10:15

1 stop12h 09m

Shannon

Wed 7/10

12:30-13:42

1 stop30h 12m

€847

PortlandShannon

PWM - SNN

PWMSNN

Portland

Thu 24/9

15:03-11:20

2 stops15h 17m

Shannon

Wed 7/10

07:30-23:24

2 stops20h 54m

€889

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?

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

  • 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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