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Cheap flights from Portland, Maine to Ireland from $383

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.
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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.
United Airlines Logo
11:12 am - 8:10 am
PWM
-
DUB
15h 58m2 stops
United Airlines Logo
10:40 am - 2:39 pm
DUB
-
PWM
32h 59m1 stop
$614United Airlines
Wed, Jan 21 - Sun, Jan 25
United Airlines Logo
6:00 am - 8:10 am
PWM
-
DUB
21h 10m2 stops
United Airlines Logo
9:30 am - 2:31 pm
DUB
-
PWM
34h 01m2 stops
$619United Airlines
Wed, Jan 21 - Sun, Jan 25
United Airlines Logo
10:05 am - 7:20 am
PWM
-
DUB
16h 15m1 stop
United Airlines Logo
9:50 am - 1:38 pm
DUB
-
PWM
32h 48m2 stops
$629United Airlines
Fri, Apr 24 - Sat, May 2
United Airlines Logo
8:58 am - 8:15 am
PWM
-
DUB
18h 17m2 stops
United Airlines Logo
9:50 am - 1:38 pm
DUB
-
PWM
32h 48m2 stops
$635United Airlines
Fri, Apr 24 - Sat, May 2
Delta Logo
6:00 am - 8:20 am
PWM
-
DUB
21h 20m2 stops
Delta Logo
6:00 am - 11:59 pm
DUB
-
PWM
22h 59m2 stops
$643Delta
Fri, Apr 24 - Sat, May 2
Delta Logo
6:00 am - 8:20 am
PWM
-
DUB
21h 20m2 stops
Delta Logo
1:15 pm - 11:59 pm
DUB
-
PWM
15h 44m1 stop
$646Delta
Fri, Apr 24 - Sat, May 2
United Airlines Logo
10:05 am - 7:20 am
PWM
-
DUB
16h 15m1 stop
United Airlines Logo
8:50 am - 7:04 pm
DUB
-
PWM
15h 14m1 stop
$657United Airlines
Fri, Apr 24 - Sat, May 2
American Airlines Logo
1:15 pm - 11:20 am
PWM
-
SNN
17h 05m2 stops
American Airlines Logo
7:40 am - 10:27 pm
SNN
-
PWM
19h 47m2 stops
$812American Airlines
Wed, Apr 15 - Sat, Apr 25
American Airlines Logo
4:12 pm - 11:20 am
PWM
-
SNN
14h 08m2 stops
American Airlines Logo
7:40 am - 10:27 pm
SNN
-
PWM
19h 47m2 stops
$888American Airlines
Wed, Apr 15 - Sat, Apr 25
Austrian Airlines Logo
11:19 am - 7:30 am
PWM
-
DUB
15h 11m1 stop
Austrian Airlines Logo
9:30 am - 6:47 pm
DUB
-
PWM
14h 17m1 stop
$1,084Austrian Airlines
Wed, Apr 15 - Fri, Apr 17

United Airlines flights from Portland, Maine to Ireland

Our best United Airlines deals on Portland, Maine to Ireland flight tickets
United Airlines
Jan 21
PWM11:12 amPortland
15h 58m
2 stops
DUB8:10 amDublin
Jan 25
DUB10:40 amDublin
32h 59m
1 stop
PWM2:39 pmPortland
$614
Find similar
United Airlines
Jan 21
PWM6:00 amPortland
21h 10m
2 stops
DUB8:10 amDublin
Jan 25
DUB9:30 amDublin
34h 01m
2 stops
PWM2:31 pmPortland
$619
Find similar
United Airlines
Apr 24
PWM10:05 amPortland
16h 15m
1 stop
DUB7:20 amDublin
May 2
DUB9:50 amDublin
32h 48m
2 stops
PWM1:38 pmPortland
$629
Find similar

Delta flights from Portland, Maine to Ireland

Our best Delta deals on Portland, Maine to Ireland flight tickets
Delta
Apr 24
PWM6:00 amPortland
21h 20m
2 stops
DUB8:20 amDublin
May 2
DUB6:00 amDublin
22h 59m
2 stops
PWM11:59 pmPortland
$643
Find similar
Delta
Apr 24
PWM6:00 amPortland
21h 20m
2 stops
DUB8:20 amDublin
May 2
DUB1:15 pmDublin
15h 44m
1 stop
PWM11:59 pmPortland
$646
Find similar

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 December 14, 2025.
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

Wed 1/21

11:12 am-8:10 am

2 stops15h 58m

Dublin

Sun 1/25

10:40 am-2:39 pm

1 stop32h 59m

$614

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 1/21

6:00 am-8:10 am

2 stops21h 10m

Dublin

Sun 1/25

9:30 am-2:31 pm

2 stops34h 01m

$619

PortlandDublin

PWM - DUB

PWMDUB

Portland

Fri 4/24

10:05 am-7:20 am

1 stop16h 15m

Dublin

Sat 5/2

9:50 am-1:38 pm

2 stops32h 48m

$629

PortlandDublin

PWM - DUB

PWMDUB

Portland

Fri 4/24

8:58 am-8:15 am

2 stops18h 17m

Dublin

Sat 5/2

9:50 am-1:38 pm

2 stops32h 48m

$635

PortlandDublin

PWM - DUB

PWMDUB

Portland

Fri 4/24

6:00 am-8:20 am

2 stops21h 20m

Dublin

Sat 5/2

6:00 am-11:59 pm

2 stops22h 59m

$643

PortlandDublin

PWM - DUB

PWMDUB

Portland

Fri 4/24

6:00 am-8:20 am

2 stops21h 20m

Dublin

Sat 5/2

1:15 pm-11:59 pm

1 stop15h 44m

$646

PortlandDublin

PWM - DUB

PWMDUB

Portland

Fri 4/24

10:05 am-7:20 am

1 stop16h 15m

Dublin

Sat 5/2

8:50 am-7:04 pm

1 stop15h 14m

$657

PortlandShannon

PWM - SNN

PWMSNN

Portland

Wed 4/15

1:15 pm-11:20 am

2 stops17h 05m

Shannon

Sat 4/25

7:40 am-10:27 pm

2 stops19h 47m

$812

PortlandShannon

PWM - SNN

PWMSNN

Portland

Wed 4/15

4:12 pm-11:20 am

2 stops14h 08m

Shannon

Sat 4/25

7:40 am-10:27 pm

2 stops19h 47m

$888

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 4/15

11:19 am-7:30 am

1 stop15h 11m

Dublin

Fri 4/17

9:30 am-6:47 pm

1 stop14h 17m

$1,084

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 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 day to depart on your flight to Ireland?

The cheapest day to depart on your flight to Ireland is on a Tuesday when prices can be found for as low as $621. This is often the case because there is less demand to fly during this day of the week. Flights from Portland, Maine to Ireland on a Friday will generally be more expensive and average around $974. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Ireland?

According to our data, the cheapest time of day to fly to Ireland is at noon. momondo users have found flights departing from Portland, Maine to Ireland at noon for as low as $816. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In contrast, the most expensive time of day to depart to Ireland is in the afternoon when prices are around $821.

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 30m

Direct flights

None
The fastest flight from Portland, Maine to Ireland takes 9h 30m
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
2,895 reviews
Search JetBlue flights
United AirlinesPriceFrom $575Free CancellationRating
7.4
9,092 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.

An easier way to manage your Ireland trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
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Tue 1/13
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Find better results for your trip to Ireland

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