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Cheap flights from Portland, Maine to Ireland from €189

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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Find the cheapest flights from Portland, Maine to Ireland

Cheap return flights

Enter your travel dates to find the best prices.
Delta Logo
06:25 - 08:05
PWM
-
DUB
21h 40m
2 stops
Delta Logo
05:55 - 23:22
DUB
-
PWM
21h 27m
2 stops
€417Delta
Wed, 11 Mar - Wed, 18 Mar
Delta Logo
05:23 - 07:45
PWM
-
DUB
22h 22m
1 stop
Delta Logo
09:45 - 23:22
DUB
-
PWM
17h 37m
1 stop
€478Delta
Wed, 18 Mar - Wed, 25 Mar
Multiple Airlines Logo
14:30 - 09:20
PWM
-
DUB
14h 50m
2 stops
Multiple Airlines Logo
09:45 - 23:22
DUB
-
PWM
17h 37m
1 stop
€482Multiple Airlines
Wed, 18 Mar - Wed, 25 Mar
United Airlines Logo
15:10 - 07:30
PWM
-
DUB
11h 20m
1 stop
United Airlines Logo
09:00 - 18:56
DUB
-
PWM
38h 56m
2 stops
€488United Airlines
Fri, 20 Feb - Fri, 27 Feb
United Airlines Logo
05:45 - 09:55
PWM
-
DUB
23h 10m
2 stops
United Airlines Logo
09:00 - 18:56
DUB
-
PWM
38h 56m
2 stops
€491United Airlines
Fri, 20 Feb - Fri, 27 Feb
Air Canada Logo
19:12 - 08:15
PWM
-
DUB
32h 03m
2 stops
Air Canada Logo
09:50 - 23:29
DUB
-
PWM
42h 39m
2 stops
€496Air Canada
Fri, 24 Apr - Sat, 2 May
United Airlines Logo
19:12 - 11:10
PWM
-
DUB
10h 58m
1 stop
United Airlines Logo
09:50 - 23:59
DUB
-
PWM
19h 09m
2 stops
€504United Airlines
Fri, 24 Apr - Sat, 2 May
Multiple Airlines Logo
06:00 - 07:10
PWM
-
DUB
20h 10m
3 stops
Multiple Airlines Logo
09:00 - 23:20
DUB
-
PWM
19h 20m
2 stops
€517Multiple Airlines
Fri, 20 Feb - Fri, 27 Feb
Lufthansa Logo
15:22 - 10:15
PWM
-
SNN
13h 53m
1 stop
Lufthansa Logo
12:30 - 23:28
SNN
-
PWM
15h 58m
1 stop
€654Lufthansa
Fri, 17 Apr - Fri, 24 Apr
Air Canada Logo
11:09 - 11:20
PWM
-
SNN
19h 11m
3 stops
Air Canada Logo
17:25 - 18:40
SNN
-
PWM
30h 15m
3 stops
€2,218Air Canada
Wed, 15 Apr - Sat, 25 Apr

Air Canada flights from Portland, Maine to Ireland

Our best Air Canada deals on Portland, Maine to Ireland flight tickets
Air Canada
24 Apr
PWM19:12Portland
32h 03m
2 stops
DUB08:15Dublin
2 May
DUB09:50Dublin
42h 39m
2 stops
PWM23:29Portland
€496
Air Canada
24 Apr
PWM06:00Portland
21h 15m
2 stops
DUB08:15Dublin
2 May
DUB09:50Dublin
42h 39m
2 stops
PWM23:29Portland
€663
Air Canada
20 Feb
PWM06:00Portland
20h 10m
3 stops
DUB07:10Dublin
27 Feb
DUB10:00Dublin
18h 20m
3 stops
PWM23:20Portland
€702

Delta flights from Portland, Maine to Ireland

Our best Delta deals on Portland, Maine to Ireland flight tickets
Delta
11 Mar
PWM06:25Portland
21h 40m
2 stops
DUB08:05Dublin
18 Mar
DUB05:55Dublin
21h 27m
2 stops
PWM23:22Portland
€417
Delta
18 Mar
PWM05:23Portland
22h 22m
1 stop
DUB07:45Dublin
25 Mar
DUB09:45Dublin
17h 37m
1 stop
PWM23:22Portland
€478
Delta
18 Mar
PWM14:30Portland
21h 15m
2 stops
DUB15:45Dublin
25 Mar
DUB09:45Dublin
30h 24m
2 stops
PWM12:09Portland
€536

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 26 January 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

Wed 11/3

06:25-08:05

2 stops21h 40m

Dublin

Wed 18/3

05:55-23:22

2 stops21h 27m

€417

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 18/3

05:23-07:45

1 stop22h 22m

Dublin

Wed 25/3

09:45-23:22

1 stop17h 37m

€478

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 18/3

14:30-09:20

2 stops14h 50m

Dublin

Wed 25/3

09:45-23:22

1 stop17h 37m

€482

PortlandDublin

PWM - DUB

PWMDUB

Portland

Fri 20/2

15:10-07:30

1 stop11h 20m

Dublin

Fri 27/2

09:00-18:56

2 stops38h 56m

€488

PortlandDublin

PWM - DUB

PWMDUB

Portland

Fri 20/2

05:45-09:55

2 stops23h 10m

Dublin

Fri 27/2

09:00-18:56

2 stops38h 56m

€491

PortlandDublin

PWM - DUB

PWMDUB

Portland

Fri 24/4

19:12-08:15

2 stops32h 03m

Dublin

Sat 2/5

09:50-23:29

2 stops42h 39m

€496

PortlandDublin

PWM - DUB

PWMDUB

Portland

Fri 24/4

19:12-11:10

1 stop10h 58m

Dublin

Sat 2/5

09:50-23:59

2 stops19h 09m

€504

PortlandDublin

PWM - DUB

PWMDUB

Portland

Fri 20/2

06:00-07:10

3 stops20h 10m

Dublin

Fri 27/2

09:00-23:20

2 stops19h 20m

€517

PortlandShannon

PWM - SNN

PWMSNN

Portland

Fri 17/4

15:22-10:15

1 stop13h 53m

Shannon

Fri 24/4

12:30-23:28

1 stop15h 58m

€654

PortlandShannon

PWM - SNN

PWMSNN

Portland

Wed 15/4

11:09-11:20

3 stops19h 11m

Shannon

Sat 25/4

17:25-18:40

3 stops30h 15m

€2,218

Flights are sorted by cheapest return flights first.

Showing 1-10 of 14 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?

American Airlines and Air Canada 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

10h 58m

Direct flights

None
The fastest flight from Portland, Maine to Ireland takes 10h 58m
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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