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Cheap flights from Portland, Maine to Ireland from €354

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 19/7. 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.
JetBlue Logo
06:41 - 09:00
PWM
-
DUB
21h 19m
1 stop
JetBlue Logo
11:30 - 00:25
DUB
-
PWM
17h 55m
1 stop
€582JetBlue
Sat, 25 Jul - Thu, 13 Aug
United Airlines Logo
18:53 - 11:10
PWM
-
DUB
11h 17m
1 stop
United Airlines Logo
09:50 - 21:23
DUB
-
PWM
40h 33m
2 stops
€596United Airlines
Sun, 16 Aug - Tue, 25 Aug
United Airlines Logo
08:47 - 08:10
PWM
-
DUB
18h 23m
1 stop
United Airlines Logo
09:00 - 14:20
DUB
-
PWM
34h 20m
2 stops
€597United Airlines
Fri, 13 Nov - Mon, 16 Nov
United Airlines Logo
06:00 - 08:10
PWM
-
DUB
21h 10m
2 stops
United Airlines Logo
09:00 - 14:20
DUB
-
PWM
34h 20m
2 stops
€601United Airlines
Fri, 13 Nov - Mon, 16 Nov
American Airlines Logo
15:53 - 09:35
PWM
-
DUB
12h 42m
2 stops
American Airlines Logo
11:30 - 22:33
DUB
-
PWM
16h 03m
2 stops
€615American Airlines
Tue, 10 Nov - Tue, 24 Nov
Delta Logo
06:00 - 07:45
PWM
-
DUB
20h 45m
1 stop
Delta Logo
05:45 - 23:49
DUB
-
PWM
23h 04m
2 stops
€617Delta
Tue, 10 Nov - Tue, 24 Nov
United Airlines Logo
14:23 - 10:20
PWM
-
DUB
14h 57m
1 stop
United Airlines Logo
12:05 - 23:59
DUB
-
PWM
16h 54m
1 stop
€619United Airlines
Tue, 10 Nov - Tue, 24 Nov
United Airlines Logo
09:10 - 07:30
PWM
-
DUB
17h 20m
1 stop
United Airlines Logo
12:05 - 19:18
DUB
-
PWM
12h 13m
1 stop
€620United Airlines
Fri, 13 Nov - Mon, 16 Nov
United Airlines Logo
15:43 - 07:30
PWM
-
DUB
10h 47m
1 stop
United Airlines Logo
13:35 - 23:23
DUB
-
PWM
14h 48m
1 stop
€621United Airlines
Fri, 13 Nov - Mon, 16 Nov
Multiple Airlines Logo
05:15 - 07:20
PWM
-
DUB
21h 05m
1 stop
Multiple Airlines Logo
09:20 - 13:51
DUB
-
PWM
33h 31m
2 stops
€624Multiple Airlines
Mon, 14 Sep - Mon, 28 Sep

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United Airlines flights from Portland, Maine to Ireland

Our best United Airlines deals on Portland, Maine to Ireland flight tickets
United Airlines
16 Aug
PWM18:53Portland
11h 17m
1 stop
DUB11:10Dublin
25 Aug
DUB09:50Dublin
40h 33m
2 stops
PWM21:23Portland
€596
United Airlines
13 Nov
PWM08:47Portland
18h 23m
1 stop
DUB08:10Dublin
16 Nov
DUB09:00Dublin
34h 20m
2 stops
PWM14:20Portland
€597
United Airlines
13 Nov
PWM06:00Portland
21h 10m
2 stops
DUB08:10Dublin
16 Nov
DUB09:00Dublin
34h 20m
2 stops
PWM14:20Portland
€601

Delta flights from Portland, Maine to Ireland

Our best Delta deals on Portland, Maine to Ireland flight tickets
Delta
10 Nov
PWM06:00Portland
20h 45m
1 stop
DUB07:45Dublin
24 Nov
DUB05:45Dublin
23h 04m
2 stops
PWM23:49Portland
€617
Delta
5 Aug
PWM11:50Portland
15h 05m
1 stop
DUB07:55Dublin
9 Aug
DUB05:55Dublin
24h 04m
2 stops
PWM00:59Portland
€647
Delta
8 Aug
PWM13:02Portland
15h 58m
1 stop
DUB10:00Dublin
15 Aug
DUB05:55Dublin
24h 04m
2 stops
PWM00:59Portland
€648

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 29 June 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

Sat 25/7

06:41-09:00

1 stop21h 19m

Dublin

Thu 13/8

11:30-00:25

1 stop17h 55m

€582

PortlandDublin

PWM - DUB

PWMDUB

Portland

Sun 16/8

18:53-11:10

1 stop11h 17m

Dublin

Tue 25/8

09:50-21:23

2 stops40h 33m

€596

PortlandDublin

PWM - DUB

PWMDUB

Portland

Fri 13/11

08:47-08:10

1 stop18h 23m

Dublin

Mon 16/11

09:00-14:20

2 stops34h 20m

€597

PortlandDublin

PWM - DUB

PWMDUB

Portland

Fri 13/11

06:00-08:10

2 stops21h 10m

Dublin

Mon 16/11

09:00-14:20

2 stops34h 20m

€601

PortlandDublin

PWM - DUB

PWMDUB

Portland

Tue 10/11

15:53-09:35

2 stops12h 42m

Dublin

Tue 24/11

11:30-22:33

2 stops16h 03m

€615

PortlandDublin

PWM - DUB

PWMDUB

Portland

Tue 10/11

06:00-07:45

1 stop20h 45m

Dublin

Tue 24/11

05:45-23:49

2 stops23h 04m

€617

PortlandDublin

PWM - DUB

PWMDUB

Portland

Tue 10/11

14:23-10:20

1 stop14h 57m

Dublin

Tue 24/11

12:05-23:59

1 stop16h 54m

€619

PortlandDublin

PWM - DUB

PWMDUB

Portland

Fri 13/11

09:10-07:30

1 stop17h 20m

Dublin

Mon 16/11

12:05-19:18

1 stop12h 13m

€620
Fastest return journey

PortlandDublin

PWM - DUB

PWMDUB

Portland

Fri 13/11

15:43-07:30

1 stop10h 47m

Dublin

Mon 16/11

13:35-23:23

1 stop14h 48m

€621

PortlandDublin

PWM - DUB

PWMDUB

Portland

Mon 14/9

05:15-07:20

1 stop21h 05m

Dublin

Mon 28/9

09:20-13:51

2 stops33h 31m

€624

Flights are sorted by cheapest return flights first.

Showing 1-10 of 17 resultsSorted by cheapest first
1
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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?

JetBlue, United Airlines, and Scandinavian 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

8h 59m

Direct flights

None
The fastest flight from Portland, Maine to Ireland takes 8h 59m
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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