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Cheap flights from Portland, Maine to Ireland from €326

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.
Delta Logo
14:35 - 09:15PWM-DUB
13h 40m1 stop
Delta Logo
11:00 - 22:03DUB-PWM
16h 03m1 stop
€377Delta
Find Deal
Mon, 20 Apr - Fri, 1 May
Delta Logo
14:35 - 09:15PWM-DUB
13h 40m1 stop
Delta Logo
11:00 - 11:55DUB-PWM
29h 55m2 stops
€381Delta
Find Deal
Mon, 20 Apr - Fri, 1 May
Delta Logo
14:35 - 08:45PWM-DUB
13h 10m1 stop
Delta Logo
10:45 - 13:45DUB-PWM
32h 00m1 stop
€394Delta
Find Deal
Fri, 6 Feb - Tue, 10 Feb
Delta Logo
14:35 - 08:45PWM-DUB
13h 10m1 stop
Delta Logo
10:45 - 12:03DUB-PWM
30h 18m2 stops
€403Delta
Find Deal
Fri, 6 Feb - Tue, 10 Feb
KLM Logo
14:35 - 09:15PWM-DUB
13h 40m1 stop
KLM Logo
13:15 - 23:59DUB-PWM
15h 44m1 stop
€463KLM
Find Deal
Fri, 24 Apr - Sat, 2 May
Austrian Airlines Logo
08:40 - 07:30PWM-DUB
17h 50m1 stop
Austrian Airlines Logo
09:30 - 23:30DUB-PWM
19h 00m1 stop
€492Austrian Airlines
Find Deal
Fri, 6 Feb - Tue, 10 Feb
United Airlines Logo
14:27 - 10:40PWM-DUB
15h 13m1 stop
United Airlines Logo
08:50 - 19:24DUB-PWM
15h 34m1 stop
€540United Airlines
Find Deal
Fri, 24 Apr - Sat, 2 May
American Airlines Logo
06:00 - 15:45PWM-SNN
28h 45m2 stops
American Airlines Logo
14:45 - 22:54SNN-PWM
13h 09m2 stops
€664American Airlines
Find Deal
Fri, 23 Jan - Tue, 27 Jan
American Airlines Logo
16:12 - 11:20PWM-SNN
14h 08m2 stops
American Airlines Logo
07:40 - 22:25SNN-PWM
19h 45m2 stops
€724American Airlines
Find Deal
Wed, 15 Apr - Sat, 25 Apr
United Airlines Logo
08:58 - 10:15PWM-SNN
20h 17m2 stops
United Airlines Logo
12:30 - 18:47SNN-PWM
11h 17m1 stop
€810United Airlines
Find Deal
Wed, 15 Apr - Sat, 25 Apr

Delta flights from Portland, Maine to Ireland

Our best Delta deals on Portland, Maine to Ireland flight tickets
Delta
20 Apr
PWM14:35Portland
13h 40m
1 stop
DUB09:15Dublin
1 May
DUB11:00Dublin
16h 03m
1 stop
PWM22:03Portland
€377
Find similar
Delta
20 Apr
PWM14:35Portland
13h 40m
1 stop
DUB09:15Dublin
1 May
DUB11:00Dublin
29h 55m
2 stops
PWM11:55Portland
€381
Find similar
Delta
6 Feb
PWM14:35Portland
13h 10m
1 stop
DUB08:45Dublin
10 Feb
DUB10:45Dublin
32h 00m
1 stop
PWM13:45Portland
€394
Find similar

Air Canada flights from Portland, Maine to Ireland

Our best Air Canada deals on Portland, Maine to Ireland flight tickets
Air Canada
24 Apr
PWM06:00Portland
21h 15m
2 stops
DUB08:15Dublin
2 May
DUB09:50Dublin
16h 37m
2 stops
PWM21:27Portland
€573
Find similar
Air Canada
20 Apr
PWM15:44Portland
18h 06m
3 stops
DUB14:50Dublin
1 May
DUB06:30Dublin
19h 57m
3 stops
PWM21:27Portland
€776
Find similar
Air Canada
10 May
PWM11:17Portland
17h 58m
3 stops
DUB10:15Dublin
17 May
DUB06:30Dublin
19h 57m
3 stops
PWM21:27Portland
€843
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 1 December 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

Mon 20/4

14:35-09:15

1 stop13h 40m

Dublin

Fri 1/5

11:00-22:03

1 stop16h 03m

€377

PortlandDublin

PWM - DUB

PWMDUB

Portland

Mon 20/4

14:35-09:15

1 stop13h 40m

Dublin

Fri 1/5

11:00-11:55

2 stops29h 55m

€381

PortlandDublin

PWM - DUB

PWMDUB

Portland

Fri 6/2

14:35-08:45

1 stop13h 10m

Dublin

Tue 10/2

10:45-13:45

1 stop32h 00m

€394

PortlandDublin

PWM - DUB

PWMDUB

Portland

Fri 6/2

14:35-08:45

1 stop13h 10m

Dublin

Tue 10/2

10:45-12:03

2 stops30h 18m

€403

PortlandDublin

PWM - DUB

PWMDUB

Portland

Fri 24/4

14:35-09:15

1 stop13h 40m

Dublin

Sat 2/5

13:15-23:59

1 stop15h 44m

€463

PortlandDublin

PWM - DUB

PWMDUB

Portland

Fri 6/2

08:40-07:30

1 stop17h 50m

Dublin

Tue 10/2

09:30-23:30

1 stop19h 00m

€492

PortlandDublin

PWM - DUB

PWMDUB

Portland

Fri 24/4

14:27-10:40

1 stop15h 13m

Dublin

Sat 2/5

08:50-19:24

1 stop15h 34m

€540

PortlandShannon

PWM - SNN

PWMSNN

Portland

Fri 23/1

06:00-15:45

2 stops28h 45m

Shannon

Tue 27/1

14:45-22:54

2 stops13h 09m

€664

PortlandShannon

PWM - SNN

PWMSNN

Portland

Wed 15/4

16:12-11:20

2 stops14h 08m

Shannon

Sat 25/4

07:40-22:25

2 stops19h 45m

€724

PortlandShannon

PWM - SNN

PWMSNN

Portland

Wed 15/4

08:58-10:15

2 stops20h 17m

Shannon

Sat 25/4

12:30-18:47

1 stop11h 17m

€810

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 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?

KLM, Delta, and Air France 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 38m

Direct flights

None
The fastest flight from Portland, Maine to Ireland takes 9h 38m
There are no direct flights from Portland, Maine to Ireland. There are no popular flight routes from Portland, Maine to Ireland.
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  • 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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