Latest deals
Insights
FAQs
Price Alerts

Cheap flights from Portland, Maine to Ireland from €366

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 6/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
Voted the Winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Portland, Maine to Ireland

Cheap return flights

Enter your travel dates to find the best prices.
Delta Logo
06:00 - 07:45PWM-DUB
20h 45m1 stop
Delta Logo
05:55 - 23:59DUB-PWM
23h 04m2 stops
€417Delta
Find Deal
Sun, 23 Nov - Fri, 28 Nov
Delta Logo
12:48 - 08:45PWM-DUB
14h 57m2 stops
Delta Logo
05:55 - 23:59DUB-PWM
23h 04m2 stops
€421Delta
Find Deal
Sun, 23 Nov - Fri, 28 Nov
KLM Logo
06:35 - 08:45PWM-DUB
21h 10m1 stop
KLM Logo
08:50 - 23:59DUB-PWM
20h 09m2 stops
€422KLM
Find Deal
Sat, 29 Nov - Sat, 6 Dec
Multiple Airlines Logo
06:35 - 08:45PWM-DUB
21h 10m1 stop
Multiple Airlines Logo
10:45 - 23:59DUB-PWM
18h 14m1 stop
€423Multiple Airlines
Find Deal
Sat, 29 Nov - Sat, 6 Dec
KLM Logo
14:30 - 08:45PWM-DUB
13h 15m1 stop
KLM Logo
08:50 - 23:54DUB-PWM
20h 04m2 stops
€460KLM
Find Deal
Thu, 13 Nov - Tue, 18 Nov
Multiple Airlines Logo
14:30 - 09:20PWM-DUB
13h 50m2 stops
Multiple Airlines Logo
13:25 - 23:54DUB-PWM
15h 29m2 stops
€464Multiple Airlines
Find Deal
Thu, 13 Nov - Tue, 18 Nov
Air Canada Logo
06:00 - 07:10PWM-DUB
20h 10m2 stops
Air Canada Logo
09:00 - 23:09DUB-PWM
43h 09m2 stops
€486Air Canada
Find Deal
Sat, 29 Nov - Sat, 6 Dec
Air Canada Logo
06:00 - 06:10PWM-DUB
20h 10m2 stops
Air Canada Logo
09:50 - 13:38DUB-PWM
32h 48m2 stops
€506Air Canada
Find Deal
Fri, 27 Mar - Tue, 31 Mar
United Airlines Logo
19:45 - 10:15PWM-SNN
9h 30m1 stop
United Airlines Logo
12:30 - 18:20SNN-PWM
10h 50m1 stop
€525United Airlines
Find Deal
Wed, 15 Apr - Sat, 25 Apr
United Airlines Logo
11:50 - 10:15PWM-SNN
17h 25m2 stops
United Airlines Logo
12:30 - 18:20SNN-PWM
10h 50m1 stop
€529United Airlines
Find Deal
Wed, 15 Apr - Sat, 25 Apr

Delta flights from Portland, Maine to Ireland

Our best Delta deals on Portland, Maine to Ireland flight tickets
Delta
23 Nov
PWM06:00Portland
20h 45m
1 stop
DUB07:45Dublin
28 Nov
DUB05:55Dublin
23h 04m
2 stops
PWM23:59Portland
€417
Find similar
Delta
23 Nov
PWM12:48Portland
14h 57m
2 stops
DUB08:45Dublin
28 Nov
DUB05:55Dublin
23h 04m
2 stops
PWM23:59Portland
€421
Find similar
Delta
27 Mar
PWM06:30Portland
22h 15m
1 stop
DUB08:45Dublin
31 Mar
DUB13:20Dublin
15h 29m
2 stops
PWM23:49Portland
€511
Find similar

KLM flights from Portland, Maine to Ireland

Our best KLM deals on Portland, Maine to Ireland flight tickets
KLM
29 Nov
PWM06:35Portland
21h 10m
1 stop
DUB08:45Dublin
6 Dec
DUB08:50Dublin
20h 09m
2 stops
PWM23:59Portland
€422
Find similar
KLM
13 Nov
PWM14:30Portland
13h 15m
1 stop
DUB08:45Dublin
18 Nov
DUB08:50Dublin
20h 04m
2 stops
PWM23:54Portland
€460
Find similar
KLM
13 Nov
PWM14:30Portland
13h 15m
1 stop
DUB08:45Dublin
18 Nov
DUB10:45Dublin
18h 09m
1 stop
PWM23:54Portland
€462
Find similar

momondo Fare Finder

 
Customise 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 13,528 searches. Data last updated 1 November 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

Sun 23/11

06:00-07:45

1 stop20h 45m

Dublin

Fri 28/11

05:55-23:59

2 stops23h 04m

€417

PortlandDublin

PWM - DUB

PWMDUB

Portland

Sun 23/11

12:48-08:45

2 stops14h 57m

Dublin

Fri 28/11

05:55-23:59

2 stops23h 04m

€421

PortlandDublin

PWM - DUB

PWMDUB

Portland

Sat 29/11

06:35-08:45

1 stop21h 10m

Dublin

Sat 6/12

08:50-23:59

2 stops20h 09m

€422

PortlandDublin

PWM - DUB

PWMDUB

Portland

Sat 29/11

06:35-08:45

1 stop21h 10m

Dublin

Sat 6/12

10:45-23:59

1 stop18h 14m

€423

PortlandDublin

PWM - DUB

PWMDUB

Portland

Thu 13/11

14:30-08:45

1 stop13h 15m

Dublin

Tue 18/11

08:50-23:54

2 stops20h 04m

€460

PortlandDublin

PWM - DUB

PWMDUB

Portland

Thu 13/11

14:30-09:20

2 stops13h 50m

Dublin

Tue 18/11

13:25-23:54

2 stops15h 29m

€464

PortlandDublin

PWM - DUB

PWMDUB

Portland

Sat 29/11

06:00-07:10

2 stops20h 10m

Dublin

Sat 6/12

09:00-23:09

2 stops43h 09m

€486

PortlandDublin

PWM - DUB

PWMDUB

Portland

Fri 27/3

06:00-06:10

2 stops20h 10m

Dublin

Tue 31/3

09:50-13:38

2 stops32h 48m

€506

PortlandShannon

PWM - SNN

PWMSNN

Portland

Wed 15/4

19:45-10:15

1 stop9h 30m

Shannon

Sat 25/4

12:30-18:20

1 stop10h 50m

€525

PortlandShannon

PWM - SNN

PWMSNN

Portland

Wed 15/4

11:50-10:15

2 stops17h 25m

Shannon

Sat 25/4

12:30-18:20

1 stop10h 50m

€529

Flights are sorted by cheapest return flights first.

Showing 1-10 of 17 resultsSorted by cheapest first
1
2

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 airline that flies from Portland to Ireland?

United Airlines is the most popular carrier operating from Portland 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

Direct flights

None
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 old do you have to be to fly from Portland Airport to Ireland?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to 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 licence, 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.

Why use momondo?

Why should I use momondo to find a flight deal from Portland to Ireland?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Portland to Ireland. momondo saves you time and could save you money on your trip.

Can I find flights from Portland to Ireland with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Ireland from Portland with this policy.

How can momondo help me find flights from Portland to Ireland?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Ireland from Portland.

I’m not ready to book a flight from Portland to Ireland right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Portland to Ireland flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Ireland trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Mon 1/12
Mon 8/12
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Ireland

Popular Cities in Ireland

Popular flights according to clicks in the last 7 days on momondo
Flights to Dublinfrom €40
Flights to Corkfrom €114
Flights to Shannon, Clarefrom €120
Flights to Donegalfrom €219
Flights to Milltown (Kerry)from €40