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

Aer Lingus and Delta are the most popular carriers operating from Portland to Ireland

What airlines fly to Ireland?

Aer Lingus, Delta and JetBlue 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 65% of people opting to fly with this airline when traveling to Ireland. Keep in mind that there are 13 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 November 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.

$485 Cheap Flights from Portland, Maine to Ireland in 2026/27

Discover deals from 900+ travel sites with momondo.

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.

8:20 am - 7:30 amPWM Portland-DUB Dublin

18h 10m1 stop Newark

9:00 am - 9:16 pmDUB Dublin-PWM Portland

41h 16m2 stops Toronto Pearson Intl Chicago O'Hare Intl

$695United Airlines

Sun, Feb 21 - Fri, Feb 26

7:10 am - 7:10 amPWM Portland-DUB Dublin

19h 00m2 stops Newark Toronto Pearson Intl

9:00 am - 9:36 pmDUB Dublin-PWM Portland

41h 36m2 stops Toronto Pearson Intl Newark

$703Air Canada

Sun, Feb 21 - Fri, Feb 26

3:05 pm - 8:45 amPWM Portland-DUB Dublin

12h 40m1 stop New York John F Kennedy Intl

5:45 am - 11:35 pmDUB Dublin-PWM Portland

22h 50m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson

$717Delta

Sun, Feb 21 - Thu, Feb 25

11:01 am - 8:30 amPWM Portland-DUB Dublin

16h 29m1 stop Philadelphia

11:30 am - 10:49 pmDUB Dublin-PWM Portland

16h 19m1 stop Philadelphia

$721American Airlines

Sun, Feb 21 - Thu, Feb 25

3:13 pm - 7:30 amPWM Portland-DUB Dublin

11h 17m1 stop Newark

1:35 pm - 6:50 pmDUB Dublin-PWM Portland

10h 15m1 stop Newark

$721United Airlines

Sun, Feb 28 - Wed, Mar 3

3:05 pm - 8:45 amPWM Portland-DUB Dublin

12h 40m1 stop New York John F Kennedy Intl

10:45 am - 11:55 pmDUB Dublin-PWM Portland

18h 10m1 stop New York John F Kennedy Intl

$721Multiple Airlines

Sun, Feb 21 - Thu, Feb 25

9:30 am - 10:20 amPWM Portland-DUB Dublin

19h 50m1 stop Washington, D.C. Dulles Intl

9:30 am - 11:25 pmDUB Dublin-PWM Portland

18h 55m1 stop Newark

$721United Airlines

Sun, Feb 21 - Fri, Feb 26

5:30 am - 9:00 amPWM Portland-DUB Dublin

22h 30m2 stops Atlanta Hartsfield-Jackson Paris Charles de Gaulle

8:50 am - 11:55 pmDUB Dublin-PWM Portland

20h 05m2 stops Amsterdam Schiphol New York John F Kennedy Intl

$722Delta

Sun, Feb 21 - Thu, Feb 25

5:06 pm - 10:15 amPWM Portland-SNN Shannon

12h 09m1 stop Newark

12:30 pm - 6:13 pmSNN Shannon-PWM Portland

10h 43m1 stop Newark

$724United Airlines

Sun, Apr 11 - Thu, Apr 15

8:20 am - 10:20 amPWM Portland-DUB Dublin

21h 00m2 stops Newark Washington, D.C. Dulles Intl

9:30 am - 6:50 pmDUB Dublin-PWM Portland

14h 20m1 stop Newark

$726United Airlines

Sun, Feb 28 - Wed, Mar 3

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United Airlines flights from Portland, Maine to Ireland

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

United Airlines

Feb 21

PWM8:20 amPortland

18h 10m

1 stop

DUB7:30 amDublin

Feb 26

DUB9:00 amDublin

41h 16m

2 stops

PWM9:16 pmPortland

$695

United Airlines

Feb 28

PWM3:13 pmPortland

11h 17m

1 stop

DUB7:30 amDublin

Mar 3

DUB1:35 pmDublin

10h 15m

1 stop

PWM6:50 pmPortland

$721

United Airlines

Apr 11

PWM5:06 pmPortland

12h 09m

1 stop

SNN10:15 amShannon

Apr 15

SNN12:30 pmShannon

10h 43m

1 stop

PWM6:13 pmPortland

$724

Air Canada flights from Portland, Maine to Ireland

Our best Air Canada deals on Portland, Maine to Ireland flight tickets

Air Canada

Feb 21

PWM7:10 amPortland

19h 00m

2 stops

DUB7:10 amDublin

Feb 26

DUB9:00 amDublin

41h 36m

2 stops

PWM9:36 pmPortland

$703

Air Canada

May 5

PWM6:00 amPortland

20h 45m

2 stops

DUB7:45 amDublin

May 10

DUB9:20 amDublin

33h 18m

2 stops

PWM1:38 pmPortland

$748

Air Canada

May 2

PWM6:00 amPortland

21h 15m

2 stops

DUB8:15 amDublin

May 10

DUB9:20 amDublin

35h 49m

2 stops

PWM4:09 pmPortland

$753

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandDublin

PWM Portland - DUB Dublin

PWMDUB

Portland

Sun 2/21

8:20 am-7:30 am

1 stop18h 10m

Dublin

Fri 2/26

9:00 am-9:16 pm

2 stops41h 16m

$695

PortlandDublin

PWM Portland - DUB Dublin

PWMDUB

Portland

Sun 2/21

7:10 am-7:10 am

2 stops19h 00m

Dublin

Fri 2/26

9:00 am-9:36 pm

2 stops41h 36m

$703

PortlandDublin

PWM Portland - DUB Dublin

PWMDUB

Portland

Sun 2/21

3:05 pm-8:45 am

1 stop12h 40m

Dublin

Thu 2/25

5:45 am-11:35 pm

2 stops22h 50m

$717

PortlandDublin

PWM Portland - DUB Dublin

PWMDUB

Portland

Sun 2/21

11:01 am-8:30 am

1 stop16h 29m

Dublin

Thu 2/25

11:30 am-10:49 pm

1 stop16h 19m

$721

Quickest round-trip

PortlandDublin

PWM Portland - DUB Dublin

PWMDUB

Portland

Sun 2/28

3:13 pm-7:30 am

1 stop11h 17m

Dublin

Wed 3/3

1:35 pm-6:50 pm

1 stop10h 15m

$721

PortlandDublin

PWM Portland - DUB Dublin

PWMDUB

Portland

Sun 2/21

3:05 pm-8:45 am

1 stop12h 40m

Dublin

Thu 2/25

10:45 am-11:55 pm

1 stop18h 10m

$721

PortlandDublin

PWM Portland - DUB Dublin

PWMDUB

Portland

Sun 2/21

9:30 am-10:20 am

1 stop19h 50m

Dublin

Fri 2/26

9:30 am-11:25 pm

1 stop18h 55m

$721

PortlandDublin

PWM Portland - DUB Dublin

PWMDUB

Portland

Sun 2/21

5:30 am-9:00 am

2 stops22h 30m

Dublin

Thu 2/25

8:50 am-11:55 pm

2 stops20h 05m

$722

PortlandShannon

PWM Portland - SNN Shannon

PWMSNN

Portland

Sun 4/11

5:06 pm-10:15 am

1 stop12h 09m

Shannon

Thu 4/15

12:30 pm-6:13 pm

1 stop10h 43m

$724

PortlandDublin

PWM Portland - DUB Dublin

PWMDUB

Portland

Sun 2/28

8:20 am-10:20 am

2 stops21h 00m

Dublin

Wed 3/3

9:30 am-6:50 pm

1 stop14h 20m

$726

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 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

What is the cheapest month to fly to Ireland?

In general, September is the cheapest month to fly from Portland, Maine to Ireland. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $0. If you aren’t able to travel to Ireland during the month of September, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $508.

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

Best Price Found	$485
Fastest flight time	12h 09m
Direct flights	None

The best one-way flight to Ireland from Portland, Maine in the past 72 hours is $485. The best round-trip flight deal from Portland, Maine to Ireland found on momondo in the last 72 hours is $695.

The fastest flight from Portland, Maine to Ireland takes 12h 09m

There are no direct flights from Portland, Maine to Ireland. There are no popular flight routes from Portland, Maine to Ireland.

Search flight deals

Frequently asked questions about flying from Portland, Maine to Ireland

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 November 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 $534	Free Cancellation	Rating 7.3 10,475 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

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Popular cities in Ireland

Flights to Dublinfrom $321

Flights to Shannon, Clarefrom $603

Flights to Corkfrom $501

Flights to Knockfrom $692

Flights to Milltown (Kerry)from $770

Flights to Donegalfrom $1,004

Cheap flights from Portland, Maine to Ireland from $485

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 1/11. 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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United Airlines flights from Portland, Maine to Ireland

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Air Canada flights from Portland, Maine to Ireland

Our best Air Canada deals on Portland, Maine to Ireland flight tickets

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

What is the cheapest month to fly to Ireland?

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

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from Portland, Maine to Ireland

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