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Cheap flights from Portland, Maine to Ireland from €220

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
11:00 - 23:23
DUB
-
PWM
17h 23m
1 stop
€471KLM
Mon, 20 Apr - Mon, 27 Apr
Delta Logo
12:46 - 09:15
PWM
-
DUB
15h 29m
2 stops
Delta Logo
10:00 - 23:23
DUB
-
PWM
18h 23m
2 stops
€475Delta
Mon, 20 Apr - Mon, 27 Apr
Delta Logo
13:35 - 08:45
PWM
-
DUB
14h 10m
1 stop
Delta Logo
05:55 - 23:59
DUB
-
PWM
23h 04m
2 stops
€487Delta
Tue, 11 Aug - Wed, 19 Aug
Delta Logo
14:51 - 15:25
PWM
-
DUB
19h 34m
2 stops
Delta Logo
13:15 - 00:46
DUB
-
PWM
16h 31m
1 stop
€488Delta
Fri, 24 Apr - Sat, 2 May
Multiple Airlines Logo
14:51 - 10:45
PWM
-
DUB
14h 54m
2 stops
Multiple Airlines Logo
11:10 - 00:46
DUB
-
PWM
18h 36m
2 stops
€491Multiple Airlines
Mon, 20 Apr - Mon, 27 Apr
Delta Logo
06:30 - 09:15
PWM
-
DUB
21h 45m
1 stop
Delta Logo
05:55 - 23:59
DUB
-
PWM
23h 04m
2 stops
€492Delta
Sun, 9 Aug - Wed, 19 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
€493Delta
Fri, 24 Apr - Sat, 2 May
Multiple Airlines Logo
14:51 - 10:45
PWM
-
DUB
14h 54m
2 stops
Multiple Airlines Logo
05:55 - 16:07
DUB
-
PWM
15h 12m
2 stops
€497Multiple Airlines
Thu, 30 Apr - Mon, 11 May
United Airlines Logo
06:00 - 07:30
PWM
-
SNN
20h 30m
1 stop
United Airlines Logo
09:30 - 17:44
SNN
-
PWM
13h 14m
1 stop
€626United Airlines
Mon, 24 Aug - Wed, 26 Aug
United Airlines Logo
20:15 - 10:15
PWM
-
SNN
9h 00m
1 stop
United Airlines Logo
09:30 - 23:31
SNN
-
PWM
19h 01m
2 stops
€629United Airlines
Mon, 24 Aug - Wed, 26 Aug

KLM flights from Portland, Maine to Ireland

Our best KLM deals on Portland, Maine to Ireland flight tickets
KLM
20 Apr
PWM14:51Portland
13h 24m
1 stop
DUB09:15Dublin
27 Apr
DUB11:00Dublin
17h 23m
1 stop
PWM23:23Portland
€471
KLM
10 Aug
PWM06:00Portland
21h 45m
1 stop
DUB08:45Dublin
19 Aug
DUB11:00Dublin
16h 33m
1 stop
PWM22:33Portland
€498
KLM
10 Aug
PWM06:00Portland
21h 45m
1 stop
DUB08:45Dublin
17 Aug
DUB11:00Dublin
16h 33m
1 stop
PWM22:33Portland
€499

Delta flights from Portland, Maine to Ireland

Our best Delta deals on Portland, Maine to Ireland flight tickets
Delta
20 Apr
PWM12:46Portland
15h 29m
2 stops
DUB09:15Dublin
27 Apr
DUB10:00Dublin
18h 23m
2 stops
PWM23:23Portland
€475
Delta
11 Aug
PWM13:35Portland
14h 10m
1 stop
DUB08:45Dublin
19 Aug
DUB05:55Dublin
23h 04m
2 stops
PWM23:59Portland
€487
Delta
24 Apr
PWM14:51Portland
19h 34m
2 stops
DUB15:25Dublin
2 May
DUB13:15Dublin
16h 31m
1 stop
PWM00:46Portland
€488

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 9 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

Mon 20/4

14:51-09:15

1 stop13h 24m

Dublin

Mon 27/4

11:00-23:23

1 stop17h 23m

€471

PortlandDublin

PWM - DUB

PWMDUB

Portland

Mon 20/4

12:46-09:15

2 stops15h 29m

Dublin

Mon 27/4

10:00-23:23

2 stops18h 23m

€475

PortlandDublin

PWM - DUB

PWMDUB

Portland

Tue 11/8

13:35-08:45

1 stop14h 10m

Dublin

Wed 19/8

05:55-23:59

2 stops23h 04m

€487

PortlandDublin

PWM - DUB

PWMDUB

Portland

Fri 24/4

14:51-15:25

2 stops19h 34m

Dublin

Sat 2/5

13:15-00:46

1 stop16h 31m

€488

PortlandDublin

PWM - DUB

PWMDUB

Portland

Mon 20/4

14:51-10:45

2 stops14h 54m

Dublin

Mon 27/4

11:10-00:46

2 stops18h 36m

€491

PortlandDublin

PWM - DUB

PWMDUB

Portland

Sun 9/8

06:30-09:15

1 stop21h 45m

Dublin

Wed 19/8

05:55-23:59

2 stops23h 04m

€492

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

€493

PortlandDublin

PWM - DUB

PWMDUB

Portland

Thu 30/4

14:51-10:45

2 stops14h 54m

Dublin

Mon 11/5

05:55-16:07

2 stops15h 12m

€497

PortlandShannon

PWM - SNN

PWMSNN

Portland

Mon 24/8

06:00-07:30

1 stop20h 30m

Shannon

Wed 26/8

09:30-17:44

1 stop13h 14m

€626
Fastest return journey

PortlandShannon

PWM - SNN

PWMSNN

Portland

Mon 24/8

20:15-10:15

1 stop9h 00m

Shannon

Wed 26/8

09:30-23:31

2 stops19h 01m

€629

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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