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

Delta and Air Canada 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 66% 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 September 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.

$322 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

Cheap round-trip flights

Enter your travel dates to find the best prices.

4:15 pm - 8:45 amPWM Portland-DUB Dublin

11h 30m1 stop New York John F Kennedy Intl

10:45 am - 12:19 amDUB Dublin-PWM Portland

18h 34m1 stop New York John F Kennedy Intl

$556KLM

Wed, Nov 4 - Wed, Nov 11

6:01 am - 7:55 amPWM Portland-DUB Dublin

20h 54m2 stops Atlanta Hartsfield-Jackson Minneapolis St Paul

10:45 am - 12:19 amDUB Dublin-PWM Portland

18h 34m1 stop New York John F Kennedy Intl

$560Delta

Wed, Nov 4 - Wed, Nov 11

2:35 pm - 8:45 amPWM Portland-DUB Dublin

13h 10m1 stop New York John F Kennedy Intl

10:45 am - 11:49 pmDUB Dublin-PWM Portland

18h 04m1 stop New York John F Kennedy Intl

$561Delta

Wed, Feb 24 - Wed, Mar 3

2:35 pm - 9:45 amPWM Portland-DUB Dublin

14h 10m2 stops New York John F Kennedy Intl Boston Logan Intl

9:40 am - 10:23 pmDUB Dublin-PWM Portland

17h 43m1 stop Atlanta Hartsfield-Jackson

$565Multiple Airlines

Wed, Feb 24 - Wed, Mar 3

12:42 pm - 7:55 amPWM Portland-DUB Dublin

14h 13m2 stops Detroit Metropolitan Wayne County Minneapolis St Paul

10:45 am - 11:58 amDUB Dublin-PWM Portland

30h 13m2 stops New York John F Kennedy Intl Detroit Metropolitan Wayne County

$571Delta

Wed, Nov 4 - Wed, Nov 11

6:00 am - 7:45 amPWM Portland-DUB Dublin

20h 45m1 stop Atlanta Hartsfield-Jackson

5:45 am - 12:19 amDUB Dublin-PWM Portland

23h 34m2 stops Amsterdam Schiphol New York John F Kennedy Intl

$574Delta

Tue, Nov 10 - Tue, Nov 24

6:00 am - 7:45 amPWM Portland-DUB Dublin

20h 45m1 stop Atlanta Hartsfield-Jackson

5:45 am - 11:31 pmDUB Dublin-PWM Portland

22h 46m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson

$574Delta

Tue, Nov 10 - Tue, Nov 24

6:00 am - 7:45 amPWM Portland-DUB Dublin

20h 45m1 stop Atlanta Hartsfield-Jackson

5:45 am - 12:19 amDUB Dublin-PWM Portland

23h 34m2 stops Amsterdam Schiphol New York John F Kennedy Intl

$574Delta

Tue, Nov 10 - Tue, Nov 24

8:55 am - 7:30 amPWM Portland-DUB Dublin

17h 35m1 stop Newark

9:00 am - 9:48 pmDUB Dublin-PWM Portland

41h 48m2 stops Toronto Pearson Intl Newark

$685United Airlines

Sun, Jan 17 - Thu, Jan 21

7:23 am - 7:30 amPWM Portland-DUB Dublin

19h 07m1 stop Newark

9:00 am - 9:48 pmDUB Dublin-PWM Portland

41h 48m2 stops Toronto Pearson Intl Newark

$685United Airlines

Sun, Jan 17 - Thu, Jan 21

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Delta flights from Portland, Maine to Ireland

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

Delta

Nov 4

PWM6:01 amPortland

20h 54m

2 stops

DUB7:55 amDublin

Nov 11

DUB10:45 amDublin

18h 34m

1 stop

PWM12:19 amPortland

$560

Delta

Feb 24

PWM2:35 pmPortland

13h 10m

1 stop

DUB8:45 amDublin

Mar 3

DUB10:45 amDublin

18h 04m

1 stop

PWM11:49 pmPortland

$561

Delta

Nov 4

PWM12:42 pmPortland

14h 13m

2 stops

DUB7:55 amDublin

Nov 11

DUB10:45 amDublin

30h 13m

2 stops

PWM11:58 amPortland

$571

Air Canada flights from Portland, Maine to Ireland

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

Air Canada

Nov 10

PWM5:50 amPortland

44h 20m

2 stops

DUB7:10 amDublin

Nov 19

DUB9:00 amDublin

43h 21m

2 stops

PWM11:21 pmPortland

$687

Air Canada

Jan 17

PWM6:00 amPortland

20h 10m

2 stops

DUB7:10 amDublin

Jan 21

DUB9:00 amDublin

41h 48m

2 stops

PWM9:48 pmPortland

$703

Air Canada

Oct 24

PWM10:43 amPortland

15h 27m

2 stops

DUB7:10 amDublin

Oct 31

DUB8:00 amDublin

44h 21m

2 stops

PWM12:21 amPortland

$726

momondo Fare Finder

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

Cheapest round-trip

Quickest round-trip

PortlandDublin

PWM Portland - DUB Dublin

PWMDUB

Portland

Wed 11/4

4:15 pm-8:45 am

1 stop11h 30m

Dublin

Wed 11/11

10:45 am-12:19 am

1 stop18h 34m

$556

PortlandDublin

PWM Portland - DUB Dublin

PWMDUB

Portland

Wed 11/4

6:01 am-7:55 am

2 stops20h 54m

Dublin

Wed 11/11

10:45 am-12:19 am

1 stop18h 34m

$560

PortlandDublin

PWM Portland - DUB Dublin

PWMDUB

Portland

Wed 2/24

2:35 pm-8:45 am

1 stop13h 10m

Dublin

Wed 3/3

10:45 am-11:49 pm

1 stop18h 04m

$561

PortlandDublin

PWM Portland - DUB Dublin

PWMDUB

Portland

Wed 2/24

2:35 pm-9:45 am

2 stops14h 10m

Dublin

Wed 3/3

9:40 am-10:23 pm

1 stop17h 43m

$565

PortlandDublin

PWM Portland - DUB Dublin

PWMDUB

Portland

Wed 11/4

12:42 pm-7:55 am

2 stops14h 13m

Dublin

Wed 11/11

10:45 am-11:58 am

2 stops30h 13m

$571

PortlandDublin

PWM Portland - DUB Dublin

PWMDUB

Portland

Tue 11/10

6:00 am-7:45 am

1 stop20h 45m

Dublin

Tue 11/24

5:45 am-12:19 am

2 stops23h 34m

$574

PortlandDublin

PWM Portland - DUB Dublin

PWMDUB

Portland

Tue 11/10

6:00 am-7:45 am

1 stop20h 45m

Dublin

Tue 11/24

5:45 am-11:31 pm

2 stops22h 46m

$574

PortlandDublin

PWM Portland - DUB Dublin

PWMDUB

Portland

Tue 11/10

6:00 am-7:45 am

1 stop20h 45m

Dublin

Tue 11/24

5:45 am-12:19 am

2 stops23h 34m

$574

PortlandDublin

PWM Portland - DUB Dublin

PWMDUB

Portland

Sun 1/17

8:55 am-7:30 am

1 stop17h 35m

Dublin

Thu 1/21

9:00 am-9:48 pm

2 stops41h 48m

$685

PortlandDublin

PWM Portland - DUB Dublin

PWMDUB

Portland

Sun 1/17

7:23 am-7:30 am

1 stop19h 07m

Dublin

Thu 1/21

9:00 am-9:48 pm

2 stops41h 48m

$685

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

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 July is also cheap. Prices for this month can be found on momondo for an average of $0.

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	$322
Fastest flight time	14h 38m
Direct flights	None

The best one-way flight to Ireland from Portland, Maine in the past 72 hours is $322. The best round-trip flight deal from Portland, Maine to Ireland found on momondo in the last 72 hours is $556.

The fastest flight from Portland, Maine to Ireland takes 14h 38m

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 September 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 $606	Free Cancellation	Rating 7.4 10,238 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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Feeling lucky

Popular cities in Ireland

Flights to Dublinfrom $390

Flights to Shannon, Clarefrom $429

Flights to Corkfrom $482

Flights to Knockfrom $706

Flights to Milltown (Kerry)from $519

Flights to Donegalfrom $797

Cheap flights from Portland, Maine to Ireland from $322

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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Delta flights from Portland, Maine to Ireland

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

Air Canada flights from Portland, Maine to Ireland

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

momondo Fare Finder

Use the filters below to find and compare flights from Portland, Maine to Ireland that are best for you.

See travel insights to Ireland from

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