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Cheap flights from Portland, Maine to Ireland from $487

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Portland, Maine to Ireland departing on 11/29. 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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Cheap round-trip flights

Enter your travel dates to find the best prices.
KLM Logo
6:35 am - 8:45 amPWM-DUB
21h 10m1 stop
KLM Logo
1:25 pm - 11:59 pmDUB-PWM
15h 34m2 stops
$487KLM
Find Deal
Sat, Nov 29 - Sat, Dec 6
Multiple Airlines Logo
6:35 am - 8:45 amPWM-DUB
21h 10m1 stop
Multiple Airlines Logo
10:45 am - 11:59 pmDUB-PWM
18h 14m1 stop
$489Multiple Airlines
Find Deal
Sat, Nov 29 - Sat, Dec 6
Air Canada Logo
6:00 am - 7:10 amPWM-DUB
20h 10m2 stops
Air Canada Logo
9:00 am - 11:09 pmDUB-PWM
43h 09m2 stops
$562Air Canada
Find Deal
Sat, Nov 29 - Sat, Dec 6
Air Canada Logo
6:00 am - 6:10 amPWM-DUB
20h 10m2 stops
Air Canada Logo
9:50 am - 1:38 pmDUB-PWM
32h 48m2 stops
$585Air Canada
Find Deal
Fri, Mar 27 - Tue, Mar 31
Delta Logo
6:30 am - 8:45 amPWM-DUB
22h 15m1 stop
Delta Logo
1:20 pm - 11:49 pmDUB-PWM
15h 29m2 stops
$590Delta
Find Deal
Fri, Mar 27 - Tue, Mar 31
American Airlines Logo
4:11 pm - 11:30 amPWM-SNN
15h 19m2 stops
American Airlines Logo
7:40 am - 10:32 pmSNN-PWM
19h 52m2 stops
$603American Airlines
Find Deal
Tue, Mar 24 - Mon, Mar 30
United Airlines Logo
7:45 pm - 10:15 amPWM-SNN
9h 30m1 stop
United Airlines Logo
12:30 pm - 6:20 pmSNN-PWM
10h 50m1 stop
$606United Airlines
Find Deal
Wed, Apr 15 - Sat, Apr 25
United Airlines Logo
11:50 am - 10:15 amPWM-SNN
17h 25m2 stops
United Airlines Logo
12:30 pm - 6:20 pmSNN-PWM
10h 50m1 stop
$611United Airlines
Find Deal
Wed, Apr 15 - Sat, Apr 25
American Airlines Logo
1:15 pm - 11:20 amPWM-SNN
17h 05m2 stops
American Airlines Logo
7:40 am - 10:27 pmSNN-PWM
19h 47m2 stops
$700American Airlines
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Fri, Apr 17 - Fri, Apr 24
JetBlue Logo
2:20 pm - 9:00 amPWM-DUB
13h 40m1 stop
JetBlue Logo
11:45 am - 1:23 pmDUB-PWM
30h 38m1 stop
$723JetBlue
Find Deal
Mon, Apr 20 - Fri, Apr 24

Scandinavian Airlines flights from Portland, Maine to Ireland

Our best Scandinavian Airlines deals on Portland, Maine to Ireland flight tickets
Scandinavian Airlines
Nov 29
PWM6:35 amPortland
30h 45m
2 stops
DUB6:20 pmDublin
Dec 5
DUB7:05 pmDublin
33h 54m
2 stops
PWM11:59 pmPortland
$845
Find similar
Scandinavian Airlines
Nov 16
PWM6:35 amPortland
24h 10m
2 stops
DUB11:45 amDublin
Nov 22
DUB10:10 amDublin
42h 44m
2 stops
PWM11:54 pmPortland
$971
Find similar

United Airlines flights from Portland, Maine to Ireland

Our best United Airlines deals on Portland, Maine to Ireland flight tickets
United Airlines
Apr 15
PWM7:45 pmPortland
9h 30m
1 stop
SNN10:15 amShannon
Apr 25
SNN12:30 pmShannon
10h 50m
1 stop
PWM6:20 pmPortland
$606
Find similar
United Airlines
Apr 15
PWM11:50 amPortland
17h 25m
2 stops
SNN10:15 amShannon
Apr 25
SNN12:30 pmShannon
10h 50m
1 stop
PWM6:20 pmPortland
$611
Find similar
United Airlines
Dec 16
PWM3:00 pmPortland
11h 30m
1 stop
DUB7:30 amDublin
Dec 23
DUB12:05 pmDublin
31h 35m
1 stop
PWM2:40 pmPortland
$613
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 November 3, 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

Sat 11/29

6:35 am-8:45 am

1 stop21h 10m

Dublin

Sat 12/6

1:25 pm-11:59 pm

2 stops15h 34m

$487

PortlandDublin

PWM - DUB

PWMDUB

Portland

Sat 11/29

6:35 am-8:45 am

1 stop21h 10m

Dublin

Sat 12/6

10:45 am-11:59 pm

1 stop18h 14m

$489

PortlandDublin

PWM - DUB

PWMDUB

Portland

Sat 11/29

6:00 am-7:10 am

2 stops20h 10m

Dublin

Sat 12/6

9:00 am-11:09 pm

2 stops43h 09m

$562

PortlandDublin

PWM - DUB

PWMDUB

Portland

Fri 3/27

6:00 am-6:10 am

2 stops20h 10m

Dublin

Tue 3/31

9:50 am-1:38 pm

2 stops32h 48m

$585

PortlandDublin

PWM - DUB

PWMDUB

Portland

Fri 3/27

6:30 am-8:45 am

1 stop22h 15m

Dublin

Tue 3/31

1:20 pm-11:49 pm

2 stops15h 29m

$590

PortlandShannon

PWM - SNN

PWMSNN

Portland

Tue 3/24

4:11 pm-11:30 am

2 stops15h 19m

Shannon

Mon 3/30

7:40 am-10:32 pm

2 stops19h 52m

$603

PortlandShannon

PWM - SNN

PWMSNN

Portland

Wed 4/15

7:45 pm-10:15 am

1 stop9h 30m

Shannon

Sat 4/25

12:30 pm-6:20 pm

1 stop10h 50m

$606

PortlandShannon

PWM - SNN

PWMSNN

Portland

Wed 4/15

11:50 am-10:15 am

2 stops17h 25m

Shannon

Sat 4/25

12:30 pm-6:20 pm

1 stop10h 50m

$611

PortlandShannon

PWM - SNN

PWMSNN

Portland

Fri 4/17

1:15 pm-11:20 am

2 stops17h 05m

Shannon

Fri 4/24

7:40 am-10:27 pm

2 stops19h 47m

$700

PortlandDublin

PWM - DUB

PWMDUB

Portland

Mon 4/20

2:20 pm-9:00 am

1 stop13h 40m

Dublin

Fri 4/24

11:45 am-1:23 pm

1 stop30h 38m

$723

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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

Direct flights

None
There are no direct flights from Portland, Maine to Ireland. There are no popular flight routes from Portland, Maine to Ireland.
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  • 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
2,906 reviews
Search JetBlue flights
United AirlinesPriceFrom $575Free CancellationRating
7.4
8,997 reviews
Search United Airlines flights
American AirlinesPriceFrom $598Free CancellationRating
7.2
11,036 reviews
Search American 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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