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Cheap flights from Portland, Maine to Ireland from €259

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 15/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags
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Find the cheapest flights from Portland, Maine to Ireland

Cheap return flights

United Airlines Logo
15:00 - 07:30PWM-DUB
11h 30m1 stop
United Airlines Logo
10:40 - 14:12DUB-PWM
32h 32m1 stop
€459United Airlines
Find Deal
Wed, 19 Nov - Thu, 27 Nov
JetBlue Logo
14:17 - 08:20PWM-DUB
13h 03m1 stop
JetBlue Logo
11:30 - 22:07DUB-PWM
15h 37m1 stop
€464JetBlue
Find Deal
Wed, 17 Sep - Sun, 21 Sep
Delta Logo
14:30 - 08:45PWM-DUB
13h 15m1 stop
Delta Logo
09:45 - 14:07DUB-PWM
33h 22m2 stops
€467Delta
Find Deal
Wed, 19 Nov - Thu, 27 Nov
Delta Logo
14:30 - 16:20PWM-DUB
20h 50m2 stops
Delta Logo
09:45 - 14:07DUB-PWM
33h 22m2 stops
€505Delta
Find Deal
Wed, 19 Nov - Thu, 27 Nov
American Airlines Logo
15:56 - 11:20PWM-SNN
14h 24m2 stops
American Airlines Logo
21:15 - 17:39SNN-PWM
25h 24m2 stops
€605American Airlines
Find Deal
Mon, 15 Sep - Tue, 23 Sep
KLM Logo
14:38 - 09:15PWM-DUB
13h 37m1 stop
KLM Logo
10:45 - 00:05DUB-PWM
17h 20m1 stop
€638KLM
Find Deal
Fri, 24 Oct - Sun, 26 Oct
American Airlines Logo
06:00 - 16:45PWM-SNN
29h 45m2 stops
American Airlines Logo
14:45 - 11:50SNN-PWM
26h 05m2 stops
€647American Airlines
Find Deal
Wed, 12 Nov - Sun, 16 Nov
KLM Logo
14:41 - 09:15PWM-DUB
13h 34m1 stop
KLM Logo
11:00 - 00:11DUB-PWM
18h 11m1 stop
€689KLM
Find Deal
Sun, 28 Sep - Sun, 5 Oct
Air Canada Logo
06:00 - 07:45PWM-DUB
20h 45m2 stops
Air Canada Logo
09:50 - 18:23DUB-PWM
37h 33m2 stops
€719Air Canada
Find Deal
Sun, 28 Sep - Sun, 5 Oct
Air Canada Logo
10:39 - 08:15PWM-DUB
16h 36m3 stops
Air Canada Logo
06:30 - 18:26DUB-PWM
16h 56m3 stops
€873Air Canada
Find Deal
Wed, 17 Sep - Sun, 21 Sep

United Airlines flights from Portland, Maine to Ireland

Our best United Airlines deals on Portland, Maine to Ireland flight tickets
United Airlines
19 Nov
PWM15:00Portland
11h 30m
1 stop
DUB07:30Dublin
27 Nov
DUB10:40Dublin
32h 32m
1 stop
PWM14:12Portland
€459
Find similar
United Airlines
15 Oct
PWM17:41Portland
11h 34m
1 stop
SNN10:15Shannon
22 Oct
SNN12:30Shannon
10h 53m
1 stop
PWM18:23Portland
€547
Find similar
United Airlines
15 Oct
PWM17:41Portland
11h 34m
1 stop
SNN10:15Shannon
22 Oct
SNN12:30Shannon
38h 14m
2 stops
PWM21:44Portland
€563
Find similar

JetBlue flights from Portland, Maine to Ireland

Our best JetBlue deals on Portland, Maine to Ireland flight tickets
JetBlue
17 Sept
PWM14:17Portland
13h 03m
1 stop
DUB08:20Dublin
21 Sept
DUB11:30Dublin
15h 37m
1 stop
PWM22:07Portland
€464
Find similar
JetBlue
8 Sept
PWM07:09Portland
20h 11m
1 stop
DUB08:20Dublin
11 Sept
DUB11:30Dublin
15h 37m
1 stop
PWM22:07Portland
€573
Find similar
JetBlue
15 Sept
PWM07:09Portland
17h 46m
1 stop
SNN05:55Shannon
23 Sept
SNN14:35Shannon
27h 47m
1 stop
PWM13:22Portland
€1,239
Find similar

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 2 September 2025.
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

Wed 19/11

15:00-07:30

1 stop11h 30m

Dublin

Thu 27/11

10:40-14:12

1 stop32h 32m

€459

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 17/9

14:17-08:20

1 stop13h 03m

Dublin

Sun 21/9

11:30-22:07

1 stop15h 37m

€464

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 19/11

14:30-08:45

1 stop13h 15m

Dublin

Thu 27/11

09:45-14:07

2 stops33h 22m

€467

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 19/11

14:30-16:20

2 stops20h 50m

Dublin

Thu 27/11

09:45-14:07

2 stops33h 22m

€505

PortlandShannon

PWM - SNN

PWMSNN

Portland

Mon 15/9

15:56-11:20

2 stops14h 24m

Shannon

Tue 23/9

21:15-17:39

2 stops25h 24m

€605

PortlandDublin

PWM - DUB

PWMDUB

Portland

Fri 24/10

14:38-09:15

1 stop13h 37m

Dublin

Sun 26/10

10:45-00:05

1 stop17h 20m

€638

PortlandShannon

PWM - SNN

PWMSNN

Portland

Wed 12/11

06:00-16:45

2 stops29h 45m

Shannon

Sun 16/11

14:45-11:50

2 stops26h 05m

€647

PortlandDublin

PWM - DUB

PWMDUB

Portland

Sun 28/9

14:41-09:15

1 stop13h 34m

Dublin

Sun 5/10

11:00-00:11

1 stop18h 11m

€689

PortlandDublin

PWM - DUB

PWMDUB

Portland

Sun 28/9

06:00-07:45

2 stops20h 45m

Dublin

Sun 5/10

09:50-18:23

2 stops37h 33m

€719

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 17/9

10:39-08:15

3 stops16h 36m

Dublin

Sun 21/9

06:30-18:26

3 stops16h 56m

€873

Flights are sorted by cheapest return flights first.

Showing 1-10 of 14 resultsSorted by cheapest first
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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, American 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

Direct flights

None
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.

An easier way to manage your Ireland trip

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