Cheap flights from Portland, Maine to Dublin from €428

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight from Portland, Maine to Dublin departing on 22/10. 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
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Cheap return flights

KLM Logo
13:27 - 08:45PWM-DUB
14h 18m1 stop
KLM Logo
10:45 - 00:05DUB-PWM
18h 20m1 stop
€428KLM
Find Deal
Wed, 22 Oct - Wed, 5 Nov
Delta Logo
06:00 - 07:55PWM-DUB
20h 55m2 stops
Delta Logo
09:45 - 12:00DUB-PWM
31h 15m2 stops
€432Delta
Find Deal
Wed, 22 Oct - Wed, 5 Nov
United Airlines Logo
15:20 - 07:30PWM-DUB
11h 10m1 stop
United Airlines Logo
10:40 - 21:14DUB-PWM
15h 34m1 stop
€453United Airlines
Find Deal
Wed, 18 Feb - Tue, 24 Feb
 Logo
10:40 - 08:15PWM-DUB
16h 35m3 stops
 Logo
09:00 - 23:17DUB-PWM
19h 17m2 stops
€476
Find Deal
Wed, 22 Oct - Wed, 5 Nov
Air Canada Logo
19:31 - 07:10PWM-DUB
30h 39m2 stops
Air Canada Logo
09:00 - 23:21DUB-PWM
43h 21m2 stops
€478Air Canada
Find Deal
Wed, 18 Feb - Wed, 25 Feb
United Airlines Logo
19:31 - 09:55PWM-DUB
9h 24m1 stop
United Airlines Logo
09:30 - 18:13DUB-PWM
12h 43m1 stop
€496United Airlines
Find Deal
Wed, 4 Mar - Sun, 8 Mar
American Airlines Logo
13:16 - 09:10PWM-DUB
14h 54m2 stops
American Airlines Logo
11:30 - 23:44DUB-PWM
17h 14m2 stops
€498American Airlines
Find Deal
Thu, 19 Feb - Tue, 24 Feb
Air Canada Logo
15:00 - 07:10PWM-DUB
35h 10m2 stops
Air Canada Logo
09:00 - 23:17DUB-PWM
43h 17m2 stops
€510Air Canada
Find Deal
Wed, 5 Nov - Sun, 9 Nov
 Logo
06:00 - 09:55PWM-DUB
22h 55m1 stop
 Logo
09:00 - 17:48DUB-PWM
37h 48m2 stops
€520
Find Deal
Wed, 5 Nov - Sun, 9 Nov
American Airlines Logo
13:22 - 09:10PWM-DUB
14h 48m2 stops
American Airlines Logo
11:30 - 22:29DUB-PWM
15h 59m1 stop
€537American Airlines
Find Deal
Fri, 9 Jan - Sat, 17 Jan

KLM flights from Portland, Maine to Dublin

Our best KLM deals on Portland, Maine to Dublin flight tickets
KLM
22 Oct
PWM13:27Portland
14h 18m
1 stop
DUB08:45Dublin
5 Nov
DUB10:45Dublin
18h 20m
1 stop
PWM00:05Portland
KLM
22 Oct
PWM11:41Portland
15h 14m
1 stop
DUB07:55Dublin
29 Oct
DUB10:45Dublin
17h 20m
1 stop
PWM00:05Portland
KLM
13 Oct
PWM14:38Portland
13h 37m
1 stop
DUB09:15Dublin
22 Oct
DUB13:15Dublin
15h 50m
1 stop
PWM00:05Portland

Delta flights from Portland, Maine to Dublin

Our best Delta deals on Portland, Maine to Dublin flight tickets
Delta
22 Oct
PWM06:00Portland
20h 55m
2 stops
DUB07:55Dublin
5 Nov
DUB09:45Dublin
31h 15m
2 stops
PWM12:00Portland
Delta
19 Nov
PWM13:25Portland
13h 20m
1 stop
DUB07:45Dublin
27 Nov
DUB09:45Dublin
31h 23m
2 stops
PWM12:08Portland
Delta
18 Feb
PWM06:30Portland
20h 20m
2 stops
DUB07:50Dublin
24 Feb
DUB09:45Dublin
17h 14m
1 stop
PWM21:59Portland

momondo Fare Finder

 
Customise your flight search to find flights from Portland, Maine to Dublin 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 15 September 2025.
Use the filters below to find and compare flights from Portland, Maine to Dublin that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 22/10

13:27-08:45

1 stop14h 18m

Dublin

Wed 5/11

10:45-00:05

1 stop18h 20m

€428

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 22/10

06:00-07:55

2 stops20h 55m

Dublin

Wed 5/11

09:45-12:00

2 stops31h 15m

€432

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 18/2

15:20-07:30

1 stop11h 10m

Dublin

Tue 24/2

10:40-21:14

1 stop15h 34m

€453

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 22/10

10:40-08:15

3 stops16h 35m

Dublin

Wed 5/11

09:00-23:17

2 stops19h 17m

€476

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 18/2

19:31-07:10

2 stops30h 39m

Dublin

Wed 25/2

09:00-23:21

2 stops43h 21m

€478

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 4/3

19:31-09:55

1 stop9h 24m

Dublin

Sun 8/3

09:30-18:13

1 stop12h 43m

€496

PortlandDublin

PWM - DUB

PWMDUB

Portland

Thu 19/2

13:16-09:10

2 stops14h 54m

Dublin

Tue 24/2

11:30-23:44

2 stops17h 14m

€498

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 5/11

15:00-07:10

2 stops35h 10m

Dublin

Sun 9/11

09:00-23:17

2 stops43h 17m

€510

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 5/11

06:00-09:55

1 stop22h 55m

Dublin

Sun 9/11

09:00-17:48

2 stops37h 48m

€520

PortlandDublin

PWM - DUB

PWMDUB

Portland

Fri 9/1

13:22-09:10

2 stops14h 48m

Dublin

Sat 17/1

11:30-22:29

1 stop15h 59m

€537

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

When to book flights from Portland, Maine to Dublin

Are you open to changing your travel dates? Check out the ideal times to fly from Portland, Maine to Dublin according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Portland, Maine to Dublin (PWM to DUB) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland, Maine to Dublin

Direct flights

None
There are no direct flights from Portland, Maine to Dublin. There are no popular flight routes from Portland, Maine to Dublin.
  • How far is Portland to Dublin by plane?

    Portland and Dublin are 4666.1 km apart from one another. Typically, this will take 9h 03m by plane in normal conditions.

  • When did momondo last update prices for flights from Portland Airport to Dublin Airport?

    Prices for flights from Portland Airport to Dublin Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Portland Airport to Dublin Airport?

    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 stopovers 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 Dublin Airport.

  • What documentation or ID do you need to fly to Dublin Airport?

    The travel and health documents you'll need for your trip to Dublin Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at Dublin Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • How do I get Price Alerts for flights from Portland, Maine to Dublin?

    You can take advantage of momondo’s Price Alerts by first searching for your flights to Portland, Maine from Dublin. Flight offers will be shown to you in real-time. From there you can create a Price Alert by using our on-site widget.

  • How can I save money on flights from Portland, Maine to Dublin with momondo?

    Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore”. Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.

  • How does momondo find its flight prices?

    We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

Travelling to a place near Dublin?

Book flights to Dublin if you plan to visit one of these locations
Kilkenny
Athlone
Wicklow
Cavan
Swords
Dundalk
Tullamore
Enniscorthy
Kildare
Naas
Mullingar
Bray
Maynooth
Arklow
Drogheda
Malahide
Carlingford
Portmarnock
Castleknock
Leixlip

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Portland to Dublin for you.

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

All flight searches from Portland to Dublin on momondo can be filtered to show those which offer flexible booking policies.

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

Once you have performed a search for Portland to Dublin flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are simply researching potential flights to Dublin, momondo offers a useful price alert feature which will track prices for flights to Dublin from Portland and alert you when they change.

An easier way to manage your Dublin 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.

Get notified when prices go down

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1 adult
Wed 15/10
Wed 22/10