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Cheap flights from Portland, Maine to Ireland from €278

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 30/9. 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
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.
KLM Logo
06:00 - 07:45
PWM
-
DUB
21h 45m
1 stop
KLM Logo
05:55 - 23:49
DUB
-
PWM
22h 54m
2 stops
€651KLM
Thu, 29 Oct - Mon, 2 Nov
KLM Logo
14:35 - 08:45
PWM
-
DUB
14h 10m
1 stop
KLM Logo
09:45 - 22:23
DUB
-
PWM
17h 38m
1 stop
€653KLM
Thu, 29 Oct - Mon, 2 Nov
Multiple Airlines Logo
14:35 - 09:45
PWM
-
DUB
15h 10m
2 stops
Multiple Airlines Logo
05:55 - 23:49
DUB
-
PWM
22h 54m
2 stops
€655Multiple Airlines
Thu, 29 Oct - Mon, 2 Nov
Multiple Airlines Logo
13:02 - 09:40
PWM
-
DUB
15h 38m
2 stops
Multiple Airlines Logo
10:30 - 20:23
DUB
-
PWM
14h 53m
2 stops
€658Multiple Airlines
Sat, 12 Sep - Tue, 15 Sep
Delta Logo
06:30 - 09:15
PWM
-
DUB
21h 45m
1 stop
Delta Logo
13:25 - 23:59
DUB
-
PWM
15h 34m
2 stops
€660Delta
Sat, 12 Sep - Tue, 15 Sep
United Airlines Logo
15:25 - 10:15
PWM
-
SNN
13h 50m
1 stop
United Airlines Logo
12:30 - 18:14
SNN
-
PWM
10h 44m
1 stop
€684United Airlines
Thu, 24 Sep - Wed, 7 Oct
JetBlue Logo
14:30 - 09:00
PWM
-
DUB
13h 30m
1 stop
JetBlue Logo
11:30 - 00:14
DUB
-
PWM
17h 44m
1 stop
€686JetBlue
Thu, 2 Jul - Thu, 9 Jul
United Airlines Logo
10:45 - 10:15
PWM
-
SNN
18h 30m
1 stop
United Airlines Logo
12:30 - 23:59
SNN
-
PWM
16h 29m
2 stops
€688United Airlines
Thu, 24 Sep - Wed, 7 Oct
JetBlue Logo
06:00 - 09:00
PWM
-
DUB
22h 00m
1 stop
JetBlue Logo
11:30 - 23:52
DUB
-
PWM
17h 22m
1 stop
€699JetBlue
Fri, 2 Oct - Fri, 23 Oct
Delta Logo
06:30 - 08:20
PWM
-
DUB
20h 50m
2 stops
Delta Logo
05:55 - 23:59
DUB
-
PWM
23h 04m
2 stops
€701Delta
Sun, 16 Aug - Sat, 22 Aug

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KLM flights from Portland, Maine to Ireland

Our best KLM deals on Portland, Maine to Ireland flight tickets
KLM
29 Oct
PWM06:00Portland
21h 45m
1 stop
DUB07:45Dublin
2 Nov
DUB05:55Dublin
22h 54m
2 stops
PWM23:49Portland
€651
KLM
29 Oct
PWM14:35Portland
14h 10m
1 stop
DUB08:45Dublin
2 Nov
DUB09:45Dublin
17h 38m
1 stop
PWM22:23Portland
€653
KLM
2 Sept
PWM14:35Portland
14h 50m
2 stops
DUB10:25Dublin
10 Sept
DUB08:55Dublin
20h 04m
2 stops
PWM23:59Portland
€669

Delta flights from Portland, Maine to Ireland

Our best Delta deals on Portland, Maine to Ireland flight tickets
Delta
12 Sept
PWM06:30Portland
21h 45m
1 stop
DUB09:15Dublin
15 Sept
DUB13:25Dublin
15h 34m
2 stops
PWM23:59Portland
€660
Delta
16 Aug
PWM06:30Portland
20h 50m
2 stops
DUB08:20Dublin
22 Aug
DUB05:55Dublin
23h 04m
2 stops
PWM23:59Portland
€701
Delta
21 Jul
PWM06:00Portland
22h 15m
1 stop
DUB09:15Dublin
29 Jul
DUB05:55Dublin
22h 19m
2 stops
PWM23:14Portland
€706

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 3 May 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

Thu 29/10

06:00-07:45

1 stop21h 45m

Dublin

Mon 2/11

05:55-23:49

2 stops22h 54m

€651

PortlandDublin

PWM - DUB

PWMDUB

Portland

Thu 29/10

14:35-08:45

1 stop14h 10m

Dublin

Mon 2/11

09:45-22:23

1 stop17h 38m

€653

PortlandDublin

PWM - DUB

PWMDUB

Portland

Thu 29/10

14:35-09:45

2 stops15h 10m

Dublin

Mon 2/11

05:55-23:49

2 stops22h 54m

€655

PortlandDublin

PWM - DUB

PWMDUB

Portland

Sat 12/9

13:02-09:40

2 stops15h 38m

Dublin

Tue 15/9

10:30-20:23

2 stops14h 53m

€658

PortlandDublin

PWM - DUB

PWMDUB

Portland

Sat 12/9

06:30-09:15

1 stop21h 45m

Dublin

Tue 15/9

13:25-23:59

2 stops15h 34m

€660
Fastest return journey

PortlandShannon

PWM - SNN

PWMSNN

Portland

Thu 24/9

15:25-10:15

1 stop13h 50m

Shannon

Wed 7/10

12:30-18:14

1 stop10h 44m

€684

PortlandDublin

PWM - DUB

PWMDUB

Portland

Thu 2/7

14:30-09:00

1 stop13h 30m

Dublin

Thu 9/7

11:30-00:14

1 stop17h 44m

€686

PortlandShannon

PWM - SNN

PWMSNN

Portland

Thu 24/9

10:45-10:15

1 stop18h 30m

Shannon

Wed 7/10

12:30-23:59

2 stops16h 29m

€688

PortlandDublin

PWM - DUB

PWMDUB

Portland

Fri 2/10

06:00-09:00

1 stop22h 00m

Dublin

Fri 23/10

11:30-23:52

1 stop17h 22m

€699

PortlandDublin

PWM - DUB

PWMDUB

Portland

Sun 16/8

06:30-08:20

2 stops20h 50m

Dublin

Sat 22/8

05:55-23:59

2 stops23h 04m

€701

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 Delta 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

13h 10m

Direct flights

None
The fastest flight from Portland, Maine to Ireland takes 13h 10m
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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