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Cheap flights from Portland, Maine to Ireland from €190

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
05:31 - 07:45
PWM
-
DUB
21h 14m
1 stop
KLM Logo
13:25 - 00:18
DUB
-
PWM
15h 53m
2 stops
€410KLM
Thu, 26 Feb - Thu, 5 Mar
KLM Logo
05:31 - 07:45
PWM
-
DUB
21h 14m
1 stop
KLM Logo
09:45 - 23:06
DUB
-
PWM
18h 21m
1 stop
€410KLM
Thu, 26 Feb - Thu, 5 Mar
Delta Logo
05:31 - 07:45
PWM
-
DUB
21h 14m
2 stops
Delta Logo
08:50 - 00:18
DUB
-
PWM
20h 28m
2 stops
€413Delta
Thu, 26 Feb - Thu, 5 Mar
Delta Logo
05:23 - 07:45
PWM
-
DUB
22h 22m
1 stop
Delta Logo
13:25 - 13:50
DUB
-
PWM
28h 25m
2 stops
€414Delta
Wed, 18 Mar - Wed, 25 Mar
KLM Logo
14:35 - 12:40
PWM
-
DUB
17h 05m
2 stops
KLM Logo
08:50 - 23:03
DUB
-
PWM
18h 13m
2 stops
€417KLM
Wed, 4 Mar - Wed, 11 Mar
United Airlines Logo
11:34 - 10:15
PWM
-
SNN
17h 41m
2 stops
United Airlines Logo
12:30 - 18:23
SNN
-
PWM
10h 53m
1 stop
€418United Airlines
Sat, 2 May - Sat, 9 May
Delta Logo
14:30 - 15:45
PWM
-
DUB
21h 15m
2 stops
Delta Logo
13:25 - 13:50
DUB
-
PWM
28h 25m
2 stops
€418Delta
Wed, 18 Mar - Wed, 25 Mar
United Airlines Logo
06:00 - 07:30
PWM
-
SNN
20h 30m
2 stops
United Airlines Logo
12:30 - 18:27
SNN
-
PWM
10h 57m
1 stop
€443United Airlines
Thu, 30 Jul - Mon, 10 Aug
Multiple Airlines Logo
05:31 - 07:45
PWM
-
DUB
21h 14m
1 stop
Multiple Airlines Logo
09:45 - 23:22
DUB
-
PWM
17h 37m
1 stop
€448Multiple Airlines
Wed, 4 Mar - Wed, 11 Mar
Air Canada Logo
06:00 - 08:15
PWM
-
DUB
21h 15m
2 stops
Air Canada Logo
09:20 - 09:11
DUB
-
PWM
52h 51m
2 stops
€470Air Canada
Wed, 6 May - Fri, 22 May

KLM flights from Portland, Maine to Ireland

Our best KLM deals on Portland, Maine to Ireland flight tickets
KLM
26 Feb
PWM05:31Portland
21h 14m
1 stop
DUB07:45Dublin
5 Mar
DUB13:25Dublin
15h 53m
2 stops
PWM00:18Portland
€410
KLM
26 Feb
PWM05:31Portland
21h 14m
1 stop
DUB07:45Dublin
5 Mar
DUB09:45Dublin
18h 21m
1 stop
PWM23:06Portland
€410
KLM
4 Mar
PWM14:35Portland
17h 05m
2 stops
DUB12:40Dublin
11 Mar
DUB08:50Dublin
18h 13m
2 stops
PWM23:03Portland
€417

Delta flights from Portland, Maine to Ireland

Our best Delta deals on Portland, Maine to Ireland flight tickets
Delta
26 Feb
PWM05:31Portland
21h 14m
2 stops
DUB07:45Dublin
5 Mar
DUB08:50Dublin
20h 28m
2 stops
PWM00:18Portland
€413
Delta
18 Mar
PWM05:23Portland
22h 22m
1 stop
DUB07:45Dublin
25 Mar
DUB13:25Dublin
28h 25m
2 stops
PWM13:50Portland
€414
Delta
18 Mar
PWM14:30Portland
21h 15m
2 stops
DUB15:45Dublin
25 Mar
DUB13:25Dublin
28h 25m
2 stops
PWM13:50Portland
€418

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 5 February 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 26/2

05:31-07:45

1 stop21h 14m

Dublin

Thu 5/3

13:25-00:18

2 stops15h 53m

€410

PortlandDublin

PWM - DUB

PWMDUB

Portland

Thu 26/2

05:31-07:45

1 stop21h 14m

Dublin

Thu 5/3

09:45-23:06

1 stop18h 21m

€410

PortlandDublin

PWM - DUB

PWMDUB

Portland

Thu 26/2

05:31-07:45

2 stops21h 14m

Dublin

Thu 5/3

08:50-00:18

2 stops20h 28m

€413

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 18/3

05:23-07:45

1 stop22h 22m

Dublin

Wed 25/3

13:25-13:50

2 stops28h 25m

€414

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 4/3

14:35-12:40

2 stops17h 05m

Dublin

Wed 11/3

08:50-23:03

2 stops18h 13m

€417

PortlandShannon

PWM - SNN

PWMSNN

Portland

Sat 2/5

11:34-10:15

2 stops17h 41m

Shannon

Sat 9/5

12:30-18:23

1 stop10h 53m

€418

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 18/3

14:30-15:45

2 stops21h 15m

Dublin

Wed 25/3

13:25-13:50

2 stops28h 25m

€418

PortlandShannon

PWM - SNN

PWMSNN

Portland

Thu 30/7

06:00-07:30

2 stops20h 30m

Shannon

Mon 10/8

12:30-18:27

1 stop10h 57m

€443

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 4/3

05:31-07:45

1 stop21h 14m

Dublin

Wed 11/3

09:45-23:22

1 stop17h 37m

€448

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 6/5

06:00-08:15

2 stops21h 15m

Dublin

Fri 22/5

09:20-09:11

2 stops52h 51m

€470

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?

American Airlines, United Airlines, and KLM 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 25m

Direct flights

None
The fastest flight from Portland, Maine to Ireland takes 9h 25m
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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