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Cheap flights from Portland, Maine to Ireland from €323

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 19/7. 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
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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.
JetBlue Logo
14:49 - 09:00
PWM
-
DUB
13h 11m
1 stop
JetBlue Logo
11:30 - 00:25
DUB
-
PWM
17h 55m
1 stop
€544JetBlue
Wed, 5 Aug - Wed, 2 Sep
JetBlue Logo
06:10 - 09:00
PWM
-
DUB
21h 50m
1 stop
JetBlue Logo
11:30 - 00:25
DUB
-
PWM
17h 55m
1 stop
€554JetBlue
Fri, 21 Aug - Wed, 26 Aug
JetBlue Logo
14:40 - 09:00
PWM
-
DUB
13h 20m
1 stop
JetBlue Logo
11:30 - 00:25
DUB
-
PWM
17h 55m
1 stop
€570JetBlue
Thu, 27 Aug - Wed, 2 Sep
JetBlue Logo
06:00 - 09:00
PWM
-
DUB
22h 00m
1 stop
JetBlue Logo
11:30 - 00:14
DUB
-
PWM
17h 44m
1 stop
€581JetBlue
Sun, 30 Aug - Sun, 6 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
€597Air Canada
Wed, 19 Aug - Tue, 25 Aug
Air Canada Logo
06:00 - 07:45
PWM
-
DUB
20h 45m
2 stops
Air Canada Logo
09:20 - 18:29
DUB
-
PWM
38h 09m
2 stops
€601Air Canada
Wed, 19 Aug - Sat, 29 Aug
United Airlines Logo
11:17 - 09:55
PWM
-
DUB
17h 38m
1 stop
United Airlines Logo
09:00 - 22:57
DUB
-
PWM
42h 57m
2 stops
€604United Airlines
Sun, 6 Dec - Thu, 10 Dec
United Airlines Logo
06:00 - 10:20
PWM
-
DUB
23h 20m
2 stops
United Airlines Logo
09:00 - 22:57
DUB
-
PWM
42h 57m
2 stops
€607United Airlines
Sun, 6 Dec - Thu, 10 Dec
Delta Logo
14:59 - 11:10
PWM
-
SNN
15h 11m
1 stop
Delta Logo
13:05 - 00:59
SNN
-
PWM
16h 54m
1 stop
€741Delta
Thu, 30 Jul - Mon, 10 Aug
Delta Logo
14:59 - 11:10
PWM
-
SNN
15h 11m
1 stop
Delta Logo
13:05 - 00:59
SNN
-
PWM
16h 54m
1 stop
€742Delta
Thu, 30 Jul - Mon, 10 Aug

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United Airlines flights from Portland, Maine to Ireland

Our best United Airlines deals on Portland, Maine to Ireland flight tickets
United Airlines
6 Dec
PWM11:17Portland
17h 38m
1 stop
DUB09:55Dublin
10 Dec
DUB09:00Dublin
42h 57m
2 stops
PWM22:57Portland
€604
United Airlines
6 Dec
PWM06:00Portland
23h 20m
2 stops
DUB10:20Dublin
10 Dec
DUB09:00Dublin
42h 57m
2 stops
PWM22:57Portland
€607
United Airlines
8 Aug
PWM10:04Portland
16h 16m
1 stop
DUB07:20Dublin
19 Aug
DUB09:20Dublin
19h 12m
2 stops
PWM23:32Portland
€619

Air Canada flights from Portland, Maine to Ireland

Our best Air Canada deals on Portland, Maine to Ireland flight tickets
Air Canada
19 Aug
PWM06:00Portland
20h 45m
2 stops
DUB07:45Dublin
25 Aug
DUB09:50Dublin
37h 39m
2 stops
PWM18:29Portland
€597
Air Canada
19 Aug
PWM06:00Portland
20h 45m
2 stops
DUB07:45Dublin
29 Aug
DUB09:20Dublin
38h 09m
2 stops
PWM18:29Portland
€601
Air Canada
7 Aug
PWM06:00Portland
21h 15m
2 stops
DUB08:15Dublin
20 Aug
DUB09:20Dublin
43h 12m
2 stops
PWM23:32Portland
€605

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 11 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

Wed 5/8

14:49-09:00

1 stop13h 11m

Dublin

Wed 2/9

11:30-00:25

1 stop17h 55m

€544

PortlandDublin

PWM - DUB

PWMDUB

Portland

Fri 21/8

06:10-09:00

1 stop21h 50m

Dublin

Wed 26/8

11:30-00:25

1 stop17h 55m

€554

PortlandDublin

PWM - DUB

PWMDUB

Portland

Thu 27/8

14:40-09:00

1 stop13h 20m

Dublin

Wed 2/9

11:30-00:25

1 stop17h 55m

€570

PortlandDublin

PWM - DUB

PWMDUB

Portland

Sun 30/8

06:00-09:00

1 stop22h 00m

Dublin

Sun 6/9

11:30-00:14

1 stop17h 44m

€581

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 19/8

06:00-07:45

2 stops20h 45m

Dublin

Tue 25/8

09:50-18:29

2 stops37h 39m

€597

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 19/8

06:00-07:45

2 stops20h 45m

Dublin

Sat 29/8

09:20-18:29

2 stops38h 09m

€601

PortlandDublin

PWM - DUB

PWMDUB

Portland

Sun 6/12

11:17-09:55

1 stop17h 38m

Dublin

Thu 10/12

09:00-22:57

2 stops42h 57m

€604

PortlandDublin

PWM - DUB

PWMDUB

Portland

Sun 6/12

06:00-10:20

2 stops23h 20m

Dublin

Thu 10/12

09:00-22:57

2 stops42h 57m

€607

PortlandShannon

PWM - SNN

PWMSNN

Portland

Thu 30/7

14:59-11:10

1 stop15h 11m

Shannon

Mon 10/8

13:05-00:59

1 stop16h 54m

€741

PortlandShannon

PWM - SNN

PWMSNN

Portland

Thu 30/7

14:59-11:10

1 stop15h 11m

Shannon

Mon 10/8

13:05-00:59

1 stop16h 54m

€742

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, United Airlines, and TAP AIR PORTUGAL 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 24m

Direct flights

None
The fastest flight from Portland, Maine to Ireland takes 10h 24m
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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