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Cheap flights from Portland, Maine to Ireland from €282

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 20/7. 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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Cheap return flights

Enter your travel dates to find the best prices.
United Airlines Logo
09:15 - 07:30
PWM
-
SNN
17h 15m
1 stop
United Airlines Logo
12:30 - 18:54
SNN
-
PWM
11h 24m
1 stop
€569United Airlines
Sat, 22 Aug - Wed, 26 Aug
United Airlines Logo
06:00 - 07:30
PWM
-
SNN
20h 30m
2 stops
United Airlines Logo
09:30 - 23:59
SNN
-
PWM
19h 29m
2 stops
€572United Airlines
Sat, 22 Aug - Wed, 26 Aug
United Airlines Logo
20:15 - 11:10
PWM
-
DUB
9h 55m
1 stop
United Airlines Logo
09:20 - 23:59
DUB
-
PWM
19h 39m
2 stops
€577United Airlines
Tue, 1 Sep - Fri, 11 Sep
United Airlines Logo
20:15 - 11:10
PWM
-
DUB
9h 55m
1 stop
United Airlines Logo
13:35 - 18:54
DUB
-
PWM
10h 19m
1 stop
€580United Airlines
Tue, 1 Sep - Fri, 11 Sep
Delta Logo
14:35 - 15:25
PWM
-
DUB
19h 50m
2 stops
Delta Logo
13:25 - 23:59
DUB
-
PWM
15h 34m
2 stops
€582Delta
Tue, 1 Sep - Fri, 11 Sep
United Airlines Logo
20:15 - 11:10
PWM
-
DUB
9h 55m
1 stop
United Airlines Logo
11:35 - 23:59
DUB
-
PWM
17h 24m
2 stops
€584United Airlines
Tue, 1 Sep - Fri, 11 Sep
United Airlines Logo
09:15 - 07:30
PWM
-
SNN
17h 15m
1 stop
United Airlines Logo
09:30 - 22:01
SNN
-
PWM
17h 31m
1 stop
€589United Airlines
Tue, 25 Aug - Wed, 26 Aug
Multiple Airlines Logo
13:14 - 09:40
PWM
-
DUB
15h 26m
2 stops
Multiple Airlines Logo
08:50 - 22:55
DUB
-
PWM
19h 05m
2 stops
€602Multiple Airlines
Tue, 1 Sep - Fri, 18 Dec
Air Canada Logo
06:00 - 07:45
PWM
-
DUB
20h 45m
2 stops
Air Canada Logo
09:20 - 18:54
DUB
-
PWM
38h 34m
2 stops
€604Air Canada
Wed, 16 Sep - Tue, 22 Sep
Scandinavian Airlines Logo
06:30 - 09:25
PWM
-
DUB
45h 55m
2 stops
Scandinavian Airlines Logo
19:05 - 00:46
DUB
-
PWM
34h 41m
2 stops
€611Scandinavian Airlines
Fri, 24 Apr - Sat, 2 May

JetBlue flights from Portland, Maine to Ireland

Our best JetBlue deals on Portland, Maine to Ireland flight tickets
JetBlue
24 May
PWM06:00Portland
22h 00m
1 stop
DUB09:00Dublin
31 May
DUB11:40Dublin
17h 16m
1 stop
PWM23:56Portland
€615
JetBlue
24 May
PWM06:00Portland
22h 00m
1 stop
DUB09:00Dublin
6 Jun
DUB11:40Dublin
17h 16m
1 stop
PWM23:56Portland
€648
JetBlue
3 May
PWM06:00Portland
22h 00m
1 stop
DUB09:00Dublin
10 May
DUB11:40Dublin
16h 56m
1 stop
PWM23:36Portland
€653

United Airlines flights from Portland, Maine to Ireland

Our best United Airlines deals on Portland, Maine to Ireland flight tickets
United Airlines
22 Aug
PWM09:15Portland
17h 15m
1 stop
SNN07:30Shannon
26 Aug
SNN12:30Shannon
11h 24m
1 stop
PWM18:54Portland
€569
United Airlines
22 Aug
PWM06:00Portland
20h 30m
2 stops
SNN07:30Shannon
26 Aug
SNN09:30Shannon
19h 29m
2 stops
PWM23:59Portland
€572
United Airlines
1 Sept
PWM20:15Portland
9h 55m
1 stop
DUB11:10Dublin
11 Sept
DUB09:20Dublin
19h 39m
2 stops
PWM23:59Portland
€577

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 23 March 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

PortlandShannon

PWM - SNN

PWMSNN

Portland

Sat 22/8

09:15-07:30

1 stop17h 15m

Shannon

Wed 26/8

12:30-18:54

1 stop11h 24m

€569

PortlandShannon

PWM - SNN

PWMSNN

Portland

Sat 22/8

06:00-07:30

2 stops20h 30m

Shannon

Wed 26/8

09:30-23:59

2 stops19h 29m

€572

PortlandDublin

PWM - DUB

PWMDUB

Portland

Tue 1/9

20:15-11:10

1 stop9h 55m

Dublin

Fri 11/9

09:20-23:59

2 stops19h 39m

€577
Fastest return journey

PortlandDublin

PWM - DUB

PWMDUB

Portland

Tue 1/9

20:15-11:10

1 stop9h 55m

Dublin

Fri 11/9

13:35-18:54

1 stop10h 19m

€580

PortlandDublin

PWM - DUB

PWMDUB

Portland

Tue 1/9

14:35-15:25

2 stops19h 50m

Dublin

Fri 11/9

13:25-23:59

2 stops15h 34m

€582

PortlandDublin

PWM - DUB

PWMDUB

Portland

Tue 1/9

20:15-11:10

1 stop9h 55m

Dublin

Fri 11/9

11:35-23:59

2 stops17h 24m

€584

PortlandShannon

PWM - SNN

PWMSNN

Portland

Tue 25/8

09:15-07:30

1 stop17h 15m

Shannon

Wed 26/8

09:30-22:01

1 stop17h 31m

€589

PortlandDublin

PWM - DUB

PWMDUB

Portland

Tue 1/9

13:14-09:40

2 stops15h 26m

Dublin

Fri 18/12

08:50-22:55

2 stops19h 05m

€602

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 16/9

06:00-07:45

2 stops20h 45m

Dublin

Tue 22/9

09:20-18:54

2 stops38h 34m

€604

PortlandDublin

PWM - DUB

PWMDUB

Portland

Fri 24/4

06:30-09:25

2 stops45h 55m

Dublin

Sat 2/5

19:05-00:46

2 stops34h 41m

€611

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?

United Airlines is the most popular carrier 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 00m

Direct flights

None
The fastest flight from Portland, Maine to Ireland takes 9h 00m
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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