What is the cheapest airline that flies from Portland to Ireland?

United Airlines is the most popular carrier operating from Portland to Ireland

What airlines fly to Ireland?

Aer Lingus, JetBlue and Delta are the top three most popular airlines that fly to Ireland from Portland, Maine according to our data. Aer Lingus is the first choice among our users, with 63% of people opting to fly with this airline when traveling to Ireland. Keep in mind that there are 15 different airlines that fly to Ireland on a routine basis, so you have a few additional options to choose from.

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?

As of March 2026, there is 1 operator available to choose from 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.

$326 Cheap Flights from Portland to Ireland in 2026

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Find the cheapest flights from Portland, Maine to Ireland

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

9:15 am - 7:30 am

PWM

SNN

17h 15m

1 stop

12:30 pm - 6:54 pm

SNN

PWM

11h 24m

1 stop

$658United Airlines

Sat, Aug 22 - Wed, Aug 26

6:00 am - 7:30 am

PWM

SNN

20h 30m

2 stops

9:30 am - 11:59 pm

SNN

PWM

19h 29m

2 stops

$662United Airlines

Sat, Aug 22 - Wed, Aug 26

8:15 pm - 11:10 am

PWM

DUB

9h 55m

1 stop

9:20 am - 11:59 pm

DUB

PWM

19h 39m

2 stops

$668United Airlines

Tue, Sep 1 - Fri, Sep 11

8:15 pm - 11:10 am

PWM

DUB

9h 55m

1 stop

1:35 pm - 6:54 pm

DUB

PWM

10h 19m

1 stop

$671United Airlines

Tue, Sep 1 - Fri, Sep 11

2:35 pm - 3:25 pm

PWM

DUB

19h 50m

2 stops

1:25 pm - 11:59 pm

DUB

PWM

15h 34m

2 stops

$673Delta

Tue, Sep 1 - Fri, Sep 11

8:15 pm - 11:10 am

PWM

DUB

9h 55m

1 stop

11:35 am - 11:59 pm

DUB

PWM

17h 24m

2 stops

$676United Airlines

Tue, Sep 1 - Fri, Sep 11

12:00 pm - 7:30 am

PWM

SNN

14h 30m

1 stop

9:30 am - 5:44 pm

SNN

PWM

13h 14m

1 stop

$681United Airlines

Tue, Aug 25 - Wed, Aug 26

1:14 pm - 9:40 am

PWM

DUB

15h 26m

2 stops

8:50 am - 10:55 pm

DUB

PWM

19h 05m

2 stops

$696Multiple Airlines

Tue, Sep 1 - Fri, Dec 18

6:00 am - 7:45 am

PWM

DUB

20h 45m

2 stops

9:20 am - 6:54 pm

DUB

PWM

38h 34m

2 stops

$699Air Canada

Wed, Sep 16 - Tue, Sep 22

6:30 am - 9:25 am

PWM

DUB

45h 55m

2 stops

7:05 pm - 12:46 am

DUB

PWM

34h 41m

2 stops

$707Scandinavian Airlines

Fri, Apr 24 - Sat, May 2

JetBlue flights from Portland, Maine to Ireland

Our best JetBlue deals on Portland, Maine to Ireland flight tickets

JetBlue

May 24

PWM6:00 amPortland

22h 00m

1 stop

DUB9:00 amDublin

May 31

DUB11:40 amDublin

17h 16m

1 stop

PWM11:56 pmPortland

$711

JetBlue

May 24

PWM6:00 amPortland

22h 00m

1 stop

DUB9:00 amDublin

Jun 6

DUB11:40 amDublin

17h 16m

1 stop

PWM11:56 pmPortland

$750

JetBlue

May 3

PWM6:00 amPortland

22h 00m

1 stop

DUB9:00 amDublin

May 10

DUB11:40 amDublin

16h 56m

1 stop

PWM11:36 pmPortland

$755

United Airlines flights from Portland, Maine to Ireland

Our best United Airlines deals on Portland, Maine to Ireland flight tickets

United Airlines

Aug 22

PWM9:15 amPortland

17h 15m

1 stop

SNN7:30 amShannon

Aug 26

SNN12:30 pmShannon

11h 24m

1 stop

PWM6:54 pmPortland

$658

United Airlines

Aug 22

PWM6:00 amPortland

20h 30m

2 stops

SNN7:30 amShannon

Aug 26

SNN9:30 amShannon

19h 29m

2 stops

PWM11:59 pmPortland

$662

United Airlines

Sep 1

PWM8:15 pmPortland

9h 55m

1 stop

DUB11:10 amDublin

Sep 11

DUB9:20 amDublin

19h 39m

2 stops

PWM11:59 pmPortland

$668

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandShannon

PWM - SNN

PWMSNN

Portland

Sat 8/22

9:15 am-7:30 am

1 stop17h 15m

Shannon

Wed 8/26

12:30 pm-6:54 pm

1 stop11h 24m

$658

PortlandShannon

PWM - SNN

PWMSNN

Portland

Sat 8/22

6:00 am-7:30 am

2 stops20h 30m

Shannon

Wed 8/26

9:30 am-11:59 pm

2 stops19h 29m

$662

PortlandDublin

PWM - DUB

PWMDUB

Portland

Tue 9/1

8:15 pm-11:10 am

1 stop9h 55m

Dublin

Fri 9/11

9:20 am-11:59 pm

2 stops19h 39m

$668

Quickest round-trip

PortlandDublin

PWM - DUB

PWMDUB

Portland

Tue 9/1

8:15 pm-11:10 am

1 stop9h 55m

Dublin

Fri 9/11

1:35 pm-6:54 pm

1 stop10h 19m

$671

PortlandDublin

PWM - DUB

PWMDUB

Portland

Tue 9/1

2:35 pm-3:25 pm

2 stops19h 50m

Dublin

Fri 9/11

1:25 pm-11:59 pm

2 stops15h 34m

$673

PortlandDublin

PWM - DUB

PWMDUB

Portland

Tue 9/1

8:15 pm-11:10 am

1 stop9h 55m

Dublin

Fri 9/11

11:35 am-11:59 pm

2 stops17h 24m

$676

PortlandShannon

PWM - SNN

PWMSNN

Portland

Tue 8/25

12:00 pm-7:30 am

1 stop14h 30m

Shannon

Wed 8/26

9:30 am-5:44 pm

1 stop13h 14m

$681

PortlandDublin

PWM - DUB

PWMDUB

Portland

Tue 9/1

1:14 pm-9:40 am

2 stops15h 26m

Dublin

Fri 12/18

8:50 am-10:55 pm

2 stops19h 05m

$696

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 9/16

6:00 am-7:45 am

2 stops20h 45m

Dublin

Tue 9/22

9:20 am-6:54 pm

2 stops38h 34m

$699

PortlandDublin

PWM - DUB

PWMDUB

Portland

Fri 4/24

6:30 am-9:25 am

2 stops45h 55m

Dublin

Sat 5/2

7:05 pm-12:46 am

2 stops34h 41m

$707

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

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

You could potentially save up to 34% 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 55m
Direct flights	None

The fastest flight from Portland, Maine to Ireland takes 9h 55m

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?
As of March 2026, there is 1 operator available to choose from 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
United Airlines	PriceFrom $511	Free Cancellation	Rating 7.4 9,460 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.

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Popular cities

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Complete your trip

Feeling lucky

Popular cities in Ireland

Flights to Dublinfrom $338

Flights to Shannon, Clarefrom $469

Flights to Corkfrom $549

Flights to Milltown (Kerry)from $587

Flights to Knockfrom $778

Flights to Donegalfrom $787

Cheap flights from Portland, Maine to Ireland from $326

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 7/20. 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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Find the cheapest flights from Portland, Maine to Ireland

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JetBlue flights from Portland, Maine to Ireland

Our best JetBlue deals on Portland, Maine to Ireland flight tickets

United Airlines flights from Portland, Maine to Ireland

Our best United Airlines deals on Portland, Maine to Ireland flight tickets

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See travel insights to Ireland from

How to get the cheapest flight ticket from Portland, Maine to Ireland

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

What is the cheapest airline that flies from Portland to Ireland?

What airlines fly 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

Direct flights

Best airlines flying from Portland, Maine to Ireland

Compare and see reviews for airlines that fly from Portland, Maine to Ireland with momondo

Why use momondo?

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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Ireland

Popular cities in Ireland

Popular flights according to clicks in the last 7 days on momondo

Portland, Maine flight routes

According to popular flight searches on momondo this year

Ireland flight routes

According to popular flight searches on momondo this year

Fly your favorite airline to Ireland

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Ireland

List of cabin classes available on flights landing in Ireland. Availability may vary depending on flight origin and airline.

Complete your trip to Ireland

Explore popular destinations other users love

According to popular flight searches on momondo this year