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Cheap flights from Portland, Maine to Ireland from €285

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 11/1. 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

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 - 00:25
DUB
-
PWM
17h 55m
1 stop
€546JetBlue
Mon, 24 Aug - Thu, 27 Aug
JetBlue Logo
06:00 - 09:00
PWM
-
DUB
22h 00m
1 stop
JetBlue Logo
11:30 - 00:25
DUB
-
PWM
17h 55m
1 stop
€582JetBlue
Mon, 31 Aug - Fri, 4 Sep
United Airlines Logo
17:03 - 09:45
PWM
-
DUB
11h 42m
1 stop
United Airlines Logo
09:50 - 13:55
DUB
-
PWM
33h 05m
2 stops
€603United Airlines
Tue, 18 Aug - Tue, 25 Aug
JetBlue Logo
13:20 - 09:00
PWM
-
DUB
14h 40m
1 stop
JetBlue Logo
11:30 - 00:10
DUB
-
PWM
17h 40m
1 stop
€605JetBlue
Tue, 1 Sep - Tue, 8 Sep
Air Canada Logo
06:00 - 07:45
PWM
-
DUB
20h 45m
2 stops
Air Canada Logo
09:50 - 18:29
DUB
-
PWM
37h 39m
2 stops
€605Air Canada
Wed, 19 Aug - Mon, 24 Aug
Multiple Airlines Logo
09:49 - 07:30
PWM
-
DUB
16h 41m
2 stops
Multiple Airlines Logo
09:50 - 18:29
DUB
-
PWM
37h 39m
2 stops
€606Multiple Airlines
Tue, 18 Aug - Tue, 25 Aug
Air Canada Logo
06:00 - 07:45
PWM
-
DUB
20h 45m
2 stops
Air Canada Logo
09:20 - 23:32
DUB
-
PWM
43h 12m
2 stops
€610Air Canada
Wed, 19 Aug - Wed, 26 Aug
United Airlines Logo
06:00 - 07:20
PWM
-
DUB
20h 20m
2 stops
United Airlines Logo
09:20 - 21:23
DUB
-
PWM
41h 03m
2 stops
€611United Airlines
Wed, 2 Sep - Wed, 9 Sep
Delta Logo
13:12 - 10:45
PWM
-
DUB
16h 33m
2 stops
Delta Logo
05:55 - 23:30
DUB
-
PWM
22h 35m
2 stops
€612Delta
Mon, 3 Aug - Wed, 19 Aug
Delta Logo
14:53 - 11:10
PWM
-
SNN
15h 17m
1 stop
Delta Logo
13:05 - 00:59
SNN
-
PWM
16h 54m
1 stop
€704Delta
Thu, 20 Aug - Mon, 24 Aug

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Delta flights from Portland, Maine to Ireland

Our best Delta deals on Portland, Maine to Ireland flight tickets
Delta
3 Aug
PWM13:12Portland
16h 33m
2 stops
DUB10:45Dublin
19 Aug
DUB05:55Dublin
22h 35m
2 stops
PWM23:30Portland
€612
Delta
10 Nov
PWM06:00Portland
20h 45m
1 stop
DUB07:45Dublin
24 Nov
DUB05:45Dublin
23h 04m
2 stops
PWM23:49Portland
€615
Delta
10 Nov
PWM10:00Portland
18h 00m
2 stops
DUB09:00Dublin
24 Nov
DUB05:45Dublin
23h 04m
2 stops
PWM23:49Portland
€619

KLM flights from Portland, Maine to Ireland

Our best KLM deals on Portland, Maine to Ireland flight tickets
KLM
3 Aug
PWM11:50Portland
15h 05m
1 stop
DUB07:55Dublin
19 Aug
DUB13:15Dublin
16h 44m
1 stop
PWM00:59Portland
€616
KLM
10 Aug
PWM14:53Portland
14h 32m
2 stops
DUB10:25Dublin
20 Aug
DUB13:25Dublin
16h 34m
2 stops
PWM00:59Portland
€628
KLM
9 Aug
PWM11:50Portland
15h 05m
1 stop
DUB07:55Dublin
16 Aug
DUB05:55Dublin
24h 04m
2 stops
PWM00:59Portland
€702

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 22 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
Fastest return journey

PortlandDublin

PWM - DUB

PWMDUB

Portland

Mon 24/8

14:40-09:00

1 stop13h 20m

Dublin

Thu 27/8

11:30-00:25

1 stop17h 55m

€546

PortlandDublin

PWM - DUB

PWMDUB

Portland

Mon 31/8

06:00-09:00

1 stop22h 00m

Dublin

Fri 4/9

11:30-00:25

1 stop17h 55m

€582

PortlandDublin

PWM - DUB

PWMDUB

Portland

Tue 18/8

17:03-09:45

1 stop11h 42m

Dublin

Tue 25/8

09:50-13:55

2 stops33h 05m

€603

PortlandDublin

PWM - DUB

PWMDUB

Portland

Tue 1/9

13:20-09:00

1 stop14h 40m

Dublin

Tue 8/9

11:30-00:10

1 stop17h 40m

€605

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 19/8

06:00-07:45

2 stops20h 45m

Dublin

Mon 24/8

09:50-18:29

2 stops37h 39m

€605

PortlandDublin

PWM - DUB

PWMDUB

Portland

Tue 18/8

09:49-07:30

2 stops16h 41m

Dublin

Tue 25/8

09:50-18:29

2 stops37h 39m

€606

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 19/8

06:00-07:45

2 stops20h 45m

Dublin

Wed 26/8

09:20-23:32

2 stops43h 12m

€610

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 2/9

06:00-07:20

2 stops20h 20m

Dublin

Wed 9/9

09:20-21:23

2 stops41h 03m

€611

PortlandDublin

PWM - DUB

PWMDUB

Portland

Mon 3/8

13:12-10:45

2 stops16h 33m

Dublin

Wed 19/8

05:55-23:30

2 stops22h 35m

€612

PortlandShannon

PWM - SNN

PWMSNN

Portland

Thu 20/8

14:53-11:10

1 stop15h 17m

Shannon

Mon 24/8

13:05-00:59

1 stop16h 54m

€704

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 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 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

10h 05m

Direct flights

None
The fastest flight from Portland, Maine to Ireland takes 10h 05m
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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