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Cheap flights from Portland, Maine to Ireland from €309

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 28/9. 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
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
14:40 - 09:00
PWM
-
DUB
13h 20m
1 stop
JetBlue Logo
11:30 - 00:14
DUB
-
PWM
17h 44m
1 stop
€570JetBlue
Mon, 31 Aug - Sun, 6 Sep
JetBlue Logo
13:25 - 09:00
PWM
-
DUB
14h 35m
1 stop
JetBlue Logo
11:30 - 13:45
DUB
-
PWM
31h 15m
1 stop
€579JetBlue
Tue, 18 Aug - Tue, 25 Aug
United Airlines Logo
09:49 - 10:40
PWM
-
DUB
19h 51m
1 stop
United Airlines Logo
09:50 - 17:42
DUB
-
PWM
36h 52m
2 stops
€594United Airlines
Tue, 18 Aug - Tue, 25 Aug
United Airlines Logo
15:45 - 10:40
PWM
-
DUB
13h 55m
2 stops
United Airlines Logo
09:50 - 17:42
DUB
-
PWM
36h 52m
2 stops
€598United Airlines
Tue, 18 Aug - Tue, 25 Aug
American Airlines Logo
15:53 - 09:35
PWM
-
DUB
12h 42m
2 stops
American Airlines Logo
11:30 - 23:38
DUB
-
PWM
17h 08m
2 stops
€612American 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
€614Delta
Tue, 10 Nov - Tue, 24 Nov
Delta Logo
06:00 - 07:45
PWM
-
DUB
20h 45m
1 stop
Delta Logo
10:45 - 23:49
DUB
-
PWM
18h 04m
1 stop
€616Delta
Tue, 10 Nov - Tue, 24 Nov
United Airlines Logo
18:53 - 11:10
PWM
-
DUB
11h 17m
1 stop
United Airlines Logo
09:30 - 23:32
DUB
-
PWM
19h 02m
1 stop
€622United Airlines
Sun, 16 Aug - Sun, 23 Aug
United Airlines Logo
06:00 - 10:15
PWM
-
SNN
23h 15m
1 stop
United Airlines Logo
09:30 - 21:23
SNN
-
PWM
16h 53m
1 stop
€624United Airlines
Fri, 14 Aug - Fri, 21 Aug
American Airlines Logo
17:42 - 12:00
PWM
-
DUB
13h 18m
2 stops
American Airlines Logo
09:30 - 23:41
DUB
-
PWM
19h 11m
1 stop
€640American Airlines
Sat, 3 Oct - Thu, 15 Oct

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American Airlines flights from Portland, Maine to Ireland

Our best American Airlines deals on Portland, Maine to Ireland flight tickets
American Airlines
10 Nov
PWM15:53Portland
12h 42m
2 stops
DUB09:35Dublin
24 Nov
DUB11:30Dublin
17h 08m
2 stops
PWM23:38Portland
€612
American Airlines
3 Oct
PWM17:42Portland
13h 18m
2 stops
DUB12:00Dublin
15 Oct
DUB09:30Dublin
19h 11m
1 stop
PWM23:41Portland
€640
American Airlines
3 Oct
PWM17:42Portland
13h 18m
2 stops
DUB12:00Dublin
15 Oct
DUB09:30Dublin
14h 14m
2 stops
PWM18:44Portland
€643

Air Canada flights from Portland, Maine to Ireland

Our best Air Canada deals on Portland, Maine to Ireland flight tickets
Air Canada
3 Oct
PWM10:43Portland
16h 32m
3 stops
DUB08:15Dublin
15 Oct
DUB09:50Dublin
18h 38m
3 stops
PWM23:28Portland
€700
Air Canada
18 Aug
PWM09:10Portland
18h 05m
3 stops
DUB08:15Dublin
25 Aug
DUB09:50Dublin
18h 42m
3 stops
PWM23:32Portland
€701
Air Canada
22 Jul
PWM06:00Portland
20h 45m
2 stops
DUB07:45Dublin
29 Jul
DUB09:20Dublin
19h 10m
2 stops
PWM23:30Portland
€908

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 July 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 31/8

14:40-09:00

1 stop13h 20m

Dublin

Sun 6/9

11:30-00:14

1 stop17h 44m

€570

PortlandDublin

PWM - DUB

PWMDUB

Portland

Tue 18/8

13:25-09:00

1 stop14h 35m

Dublin

Tue 25/8

11:30-13:45

1 stop31h 15m

€579

PortlandDublin

PWM - DUB

PWMDUB

Portland

Tue 18/8

09:49-10:40

1 stop19h 51m

Dublin

Tue 25/8

09:50-17:42

2 stops36h 52m

€594

PortlandDublin

PWM - DUB

PWMDUB

Portland

Tue 18/8

15:45-10:40

2 stops13h 55m

Dublin

Tue 25/8

09:50-17:42

2 stops36h 52m

€598
Fastest return journey

PortlandDublin

PWM - DUB

PWMDUB

Portland

Tue 10/11

15:53-09:35

2 stops12h 42m

Dublin

Tue 24/11

11:30-23:38

2 stops17h 08m

€612

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

€614

PortlandDublin

PWM - DUB

PWMDUB

Portland

Tue 10/11

06:00-07:45

1 stop20h 45m

Dublin

Tue 24/11

10:45-23:49

1 stop18h 04m

€616

PortlandDublin

PWM - DUB

PWMDUB

Portland

Sun 16/8

18:53-11:10

1 stop11h 17m

Dublin

Sun 23/8

09:30-23:32

1 stop19h 02m

€622

PortlandShannon

PWM - SNN

PWMSNN

Portland

Fri 14/8

06:00-10:15

1 stop23h 15m

Shannon

Fri 21/8

09:30-21:23

1 stop16h 53m

€624

PortlandDublin

PWM - DUB

PWMDUB

Portland

Sat 3/10

17:42-12:00

2 stops13h 18m

Dublin

Thu 15/10

09:30-23:41

1 stop19h 11m

€640

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?

JetBlue 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

11h 15m

Direct flights

None
The fastest flight from Portland, Maine to Ireland takes 11h 15m
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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Find better results for your trip to Ireland

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