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Cheap flights from Portland, Maine to Ireland from $224

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 5/10. 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 round-trip flights

Enter your travel dates to find the best prices.
KLM Logo
5:31 am - 7:45 am
PWM
-
DUB
21h 14m
1 stop
KLM Logo
1:25 pm - 12:18 am
DUB
-
PWM
15h 53m
2 stops
$483KLM
Thu, Feb 26 - Thu, Mar 5
KLM Logo
5:31 am - 7:45 am
PWM
-
DUB
21h 14m
1 stop
KLM Logo
1:25 pm - 12:18 am
DUB
-
PWM
15h 53m
2 stops
$484KLM
Thu, Feb 26 - Thu, Mar 5
American Airlines Logo
5:40 pm - 4:45 pm
PWM
-
SNN
18h 05m
2 stops
American Airlines Logo
7:50 am - 10:30 pm
SNN
-
PWM
19h 40m
2 stops
$487American Airlines
Tue, Feb 24 - Tue, Mar 3
Delta Logo
5:31 am - 7:45 am
PWM
-
DUB
21h 14m
2 stops
Delta Logo
5:55 am - 12:18 am
DUB
-
PWM
23h 23m
2 stops
$488Delta
Thu, Feb 26 - Thu, Mar 5
United Airlines Logo
7:50 pm - 10:15 am
PWM
-
SNN
9h 25m
1 stop
United Airlines Logo
12:30 pm - 6:23 pm
SNN
-
PWM
10h 53m
1 stop
$489United Airlines
Fri, May 1 - Tue, May 12
United Airlines Logo
4:45 pm - 10:15 am
PWM
-
SNN
36h 30m
2 stops
United Airlines Logo
12:30 pm - 6:23 pm
SNN
-
PWM
10h 53m
1 stop
$504United Airlines
Fri, May 1 - Tue, May 12
Delta Logo
5:23 am - 7:45 am
PWM
-
DUB
22h 22m
1 stop
Delta Logo
10:45 am - 11:03 pm
DUB
-
PWM
16h 18m
1 stop
$566Delta
Wed, Mar 18 - Wed, Mar 25
American Airlines Logo
12:29 pm - 11:30 am
PWM
-
SNN
18h 01m
2 stops
American Airlines Logo
2:00 pm - 11:50 pm
SNN
-
PWM
14h 50m
2 stops
$684American Airlines
Wed, Feb 25 - Wed, Mar 4
Air Canada Logo
6:00 am - 11:30 am
PWM
-
SNN
24h 30m
3 stops
Air Canada Logo
7:50 am - 11:20 pm
SNN
-
PWM
20h 30m
3 stops
$698Air Canada
Mon, Feb 23 - Fri, Feb 27
Air Canada Logo
6:00 am - 11:30 am
PWM
-
SNN
24h 30m
3 stops
Air Canada Logo
7:50 am - 11:20 pm
SNN
-
PWM
20h 30m
3 stops
$703Air Canada
Tue, Feb 24 - Tue, Mar 3

United Airlines flights from Portland, Maine to Ireland

Our best United Airlines deals on Portland, Maine to Ireland flight tickets
United Airlines
May 1
PWM7:50 pmPortland
9h 25m
1 stop
SNN10:15 amShannon
May 12
SNN12:30 pmShannon
10h 53m
1 stop
PWM6:23 pmPortland
$489
United Airlines
May 1
PWM4:45 pmPortland
36h 30m
2 stops
SNN10:15 amShannon
May 12
SNN12:30 pmShannon
10h 53m
1 stop
PWM6:23 pmPortland
$504
United Airlines
Mar 18
PWM7:07 pmPortland
10h 48m
1 stop
DUB9:55 amDublin
Mar 25
DUB12:05 pmDublin
26h 44m
2 stops
PWM10:49 amPortland
$569

Delta flights from Portland, Maine to Ireland

Our best Delta deals on Portland, Maine to Ireland flight tickets
Delta
Feb 26
PWM5:31 amPortland
21h 14m
2 stops
DUB7:45 amDublin
Mar 5
DUB5:55 amDublin
23h 23m
2 stops
PWM12:18 amPortland
$488
Delta
Mar 18
PWM5:23 amPortland
22h 22m
1 stop
DUB7:45 amDublin
Mar 25
DUB10:45 amDublin
16h 18m
1 stop
PWM11:03 pmPortland
$566
Delta
May 31
PWM2:35 pmPortland
13h 40m
1 stop
DUB9:15 amDublin
Jun 16
DUB5:55 amDublin
23h 04m
2 stops
PWM11:59 pmPortland
$619

momondo Fare Finder

 
Customize 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 832,500 searches. Data last updated January 29, 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

PortlandDublin

PWM - DUB

PWMDUB

Portland

Thu 2/26

5:31 am-7:45 am

1 stop21h 14m

Dublin

Thu 3/5

1:25 pm-12:18 am

2 stops15h 53m

$483

PortlandDublin

PWM - DUB

PWMDUB

Portland

Thu 2/26

5:31 am-7:45 am

1 stop21h 14m

Dublin

Thu 3/5

1:25 pm-12:18 am

2 stops15h 53m

$484

PortlandShannon

PWM - SNN

PWMSNN

Portland

Tue 2/24

5:40 pm-4:45 pm

2 stops18h 05m

Shannon

Tue 3/3

7:50 am-10:30 pm

2 stops19h 40m

$487

PortlandDublin

PWM - DUB

PWMDUB

Portland

Thu 2/26

5:31 am-7:45 am

2 stops21h 14m

Dublin

Thu 3/5

5:55 am-12:18 am

2 stops23h 23m

$488

PortlandShannon

PWM - SNN

PWMSNN

Portland

Fri 5/1

7:50 pm-10:15 am

1 stop9h 25m

Shannon

Tue 5/12

12:30 pm-6:23 pm

1 stop10h 53m

$489

PortlandShannon

PWM - SNN

PWMSNN

Portland

Fri 5/1

4:45 pm-10:15 am

2 stops36h 30m

Shannon

Tue 5/12

12:30 pm-6:23 pm

1 stop10h 53m

$504

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 3/18

5:23 am-7:45 am

1 stop22h 22m

Dublin

Wed 3/25

10:45 am-11:03 pm

1 stop16h 18m

$566

PortlandShannon

PWM - SNN

PWMSNN

Portland

Wed 2/25

12:29 pm-11:30 am

2 stops18h 01m

Shannon

Wed 3/4

2:00 pm-11:50 pm

2 stops14h 50m

$684

PortlandShannon

PWM - SNN

PWMSNN

Portland

Mon 2/23

6:00 am-11:30 am

3 stops24h 30m

Shannon

Fri 2/27

7:50 am-11:20 pm

3 stops20h 30m

$698

PortlandShannon

PWM - SNN

PWMSNN

Portland

Tue 2/24

6:00 am-11:30 am

3 stops24h 30m

Shannon

Tue 3/3

7:50 am-11:20 pm

3 stops20h 30m

$703

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 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

Can stopping save me money on Portland, Maine to Ireland flights?

You could potentially save up to 51% on your flight if you consider stops on a Portland, Maine to Ireland flight.

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 25m

Direct flights

None
The fastest flight from Portland, Maine to Ireland takes 9h 25m
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 many operators does momondo search for flights from Portland Airport to Ireland?

  • How old do you have to be to fly from Portland Airport to Ireland?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for 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 license, 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.

Best airlines flying from Portland, Maine to Ireland

Compare and see reviews for airlines that fly from Portland, Maine to Ireland with momondo
Airline
Rating
Free Cancellation
Price
JetBluePriceFrom $556Free CancellationRating
7.2
2,891 reviews
Search JetBlue flights
United AirlinesPriceFrom $575Free CancellationRating
7.4
9,215 reviews
Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Portland to Ireland?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Portland to Ireland. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Portland to Ireland with flexible booking policies on momondo?

momondo does allow users to show only those flights to Ireland from Portland which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Portland to Ireland?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Portland to Ireland.

I’m not ready to book a flight from Portland to Ireland right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Portland to Ireland now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Ireland and let you know when they change.

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Find better results for your trip to Ireland

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