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Cheap flights from Portland, Maine to Ireland from €186

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
0 bags
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Cheap return flights

Enter your travel dates to find the best prices.
United Airlines Logo
06:00 - 07:30
PWM
-
SNN
20h 30m
1 stop
United Airlines Logo
12:30 - 18:27
SNN
-
PWM
10h 57m
1 stop
€440United Airlines
Thu, 30 Jul - Mon, 10 Aug
United Airlines Logo
05:20 - 07:30
PWM
-
SNN
21h 10m
2 stops
United Airlines Logo
12:30 - 18:27
SNN
-
PWM
10h 57m
1 stop
€443United Airlines
Thu, 30 Jul - Mon, 10 Aug
Air Canada Logo
06:00 - 08:15
PWM
-
DUB
21h 15m
2 stops
Air Canada Logo
09:50 - 13:42
DUB
-
PWM
32h 52m
2 stops
€447Air Canada
Tue, 11 Aug - Mon, 24 Aug
Air Canada Logo
06:00 - 07:45
PWM
-
DUB
20h 45m
2 stops
Air Canada Logo
09:20 - 23:30
DUB
-
PWM
43h 10m
2 stops
€452Air Canada
Wed, 12 Aug - Tue, 18 Aug
United Airlines Logo
19:50 - 10:15
PWM
-
SNN
9h 25m
1 stop
United Airlines Logo
09:30 - 21:51
SNN
-
PWM
17h 21m
1 stop
€465United Airlines
Fri, 15 May - Sun, 24 May
United Airlines Logo
19:50 - 10:15
PWM
-
SNN
9h 25m
1 stop
United Airlines Logo
09:30 - 23:51
SNN
-
PWM
19h 21m
2 stops
€469United Airlines
Fri, 15 May - Sun, 24 May
United Airlines Logo
06:00 - 07:45
PWM
-
DUB
20h 45m
2 stops
United Airlines Logo
08:50 - 19:24
DUB
-
PWM
15h 34m
1 stop
€475United Airlines
Wed, 12 Aug - Tue, 18 Aug
JetBlue Logo
06:00 - 09:00
PWM
-
DUB
22h 00m
1 stop
JetBlue Logo
11:40 - 13:23
DUB
-
PWM
30h 43m
1 stop
€509JetBlue
Sun, 24 May - Sun, 31 May
Delta Logo
06:30 - 11:10
PWM
-
SNN
23h 40m
1 stop
Delta Logo
13:05 - 23:59
SNN
-
PWM
15h 54m
1 stop
€549Delta
Thu, 30 Jul - Mon, 10 Aug
American Airlines Logo
07:00 - 05:25
PWM
-
SNN
17h 25m
2 stops
American Airlines Logo
13:45 - 10:07
SNN
-
PWM
25h 22m
2 stops
€586American Airlines
Thu, 2 Apr - Thu, 9 Apr

United Airlines flights from Portland, Maine to Ireland

Our best United Airlines deals on Portland, Maine to Ireland flight tickets
United Airlines
30 Jul
PWM06:00Portland
20h 30m
1 stop
SNN07:30Shannon
10 Aug
SNN12:30Shannon
10h 57m
1 stop
PWM18:27Portland
€440
United Airlines
30 Jul
PWM10:00Portland
16h 30m
2 stops
SNN07:30Shannon
10 Aug
SNN12:30Shannon
10h 57m
1 stop
PWM18:27Portland
€443
United Airlines
15 May
PWM19:50Portland
9h 25m
1 stop
SNN10:15Shannon
24 May
SNN09:30Shannon
17h 21m
1 stop
PWM21:51Portland
€465

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
30h 43m
1 stop
PWM13:23Portland
€509
JetBlue
17 Jun
PWM14:25Portland
13h 35m
1 stop
DUB09:00Dublin
22 Jun
DUB11:40Dublin
17h 17m
1 stop
PWM23:57Portland
€927

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 19 February 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

PortlandShannon

PWM - SNN

PWMSNN

Portland

Thu 30/7

06:00-07:30

1 stop20h 30m

Shannon

Mon 10/8

12:30-18:27

1 stop10h 57m

€440

PortlandShannon

PWM - SNN

PWMSNN

Portland

Thu 30/7

05:20-07:30

2 stops21h 10m

Shannon

Mon 10/8

12:30-18:27

1 stop10h 57m

€443

PortlandDublin

PWM - DUB

PWMDUB

Portland

Tue 11/8

06:00-08:15

2 stops21h 15m

Dublin

Mon 24/8

09:50-13:42

2 stops32h 52m

€447

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 12/8

06:00-07:45

2 stops20h 45m

Dublin

Tue 18/8

09:20-23:30

2 stops43h 10m

€452

PortlandShannon

PWM - SNN

PWMSNN

Portland

Fri 15/5

19:50-10:15

1 stop9h 25m

Shannon

Sun 24/5

09:30-21:51

1 stop17h 21m

€465

PortlandShannon

PWM - SNN

PWMSNN

Portland

Fri 15/5

19:50-10:15

1 stop9h 25m

Shannon

Sun 24/5

09:30-23:51

2 stops19h 21m

€469

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 12/8

06:00-07:45

2 stops20h 45m

Dublin

Tue 18/8

08:50-19:24

1 stop15h 34m

€475

PortlandDublin

PWM - DUB

PWMDUB

Portland

Sun 24/5

06:00-09:00

1 stop22h 00m

Dublin

Sun 31/5

11:40-13:23

1 stop30h 43m

€509

PortlandShannon

PWM - SNN

PWMSNN

Portland

Thu 30/7

06:30-11:10

1 stop23h 40m

Shannon

Mon 10/8

13:05-23:59

1 stop15h 54m

€549

PortlandShannon

PWM - SNN

PWMSNN

Portland

Thu 2/4

07:00-05:25

2 stops17h 25m

Shannon

Thu 9/4

13:45-10:07

2 stops25h 22m

€586

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?

Air Canada, United Airlines, and American Airlines 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

  • 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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