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Cheap flights from Portland, Maine to Dublin from €324

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 Dublin departing on 19/7. 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
1 adult, Economy, 0 bags
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Find the cheapest flights from Portland, Maine to Dublin

Cheap return flights

Enter your travel dates to find the best prices.
JetBlue Logo
06:10 - 09:00
PWM
-
DUB
21h 50m
1 stop
JetBlue Logo
11:30 - 00:25
DUB
-
PWM
17h 55m
1 stop
€555JetBlue
Fri, 21 Aug - Wed, 26 Aug
JetBlue Logo
14:40 - 09:00
PWM
-
DUB
13h 20m
1 stop
JetBlue Logo
11:30 - 00:25
DUB
-
PWM
17h 55m
1 stop
€572JetBlue
Thu, 27 Aug - Wed, 2 Sep
Air Canada Logo
06:00 - 07:45
PWM
-
DUB
20h 45m
2 stops
Air Canada Logo
09:50 - 18:29
DUB
-
PWM
37h 39m
2 stops
€599Air Canada
Wed, 19 Aug - Tue, 25 Aug
Air Canada Logo
06:00 - 07:45
PWM
-
DUB
20h 45m
2 stops
Air Canada Logo
09:20 - 18:29
DUB
-
PWM
38h 09m
2 stops
€602Air Canada
Wed, 19 Aug - Sat, 29 Aug
United Airlines Logo
11:17 - 09:55
PWM
-
DUB
17h 38m
1 stop
United Airlines Logo
09:00 - 22:57
DUB
-
PWM
42h 57m
2 stops
€605United Airlines
Sun, 6 Dec - Thu, 10 Dec
Air Canada Logo
06:00 - 08:15
PWM
-
DUB
21h 15m
2 stops
Air Canada Logo
09:20 - 23:32
DUB
-
PWM
43h 12m
2 stops
€607Air Canada
Fri, 7 Aug - Thu, 20 Aug
Air Canada Logo
06:00 - 07:45
PWM
-
DUB
44h 45m
2 stops
Air Canada Logo
09:20 - 23:32
DUB
-
PWM
43h 12m
2 stops
€608Air Canada
Sat, 8 Aug - Thu, 20 Aug
United Airlines Logo
06:00 - 10:20
PWM
-
DUB
23h 20m
2 stops
United Airlines Logo
09:00 - 22:57
DUB
-
PWM
42h 57m
2 stops
€609United Airlines
Sun, 6 Dec - Thu, 10 Dec
Air Canada Logo
06:00 - 07:10
PWM
-
DUB
20h 10m
2 stops
Air Canada Logo
09:00 - 22:57
DUB
-
PWM
42h 57m
2 stops
€612Air Canada
Sun, 6 Dec - Thu, 10 Dec
JetBlue Logo
14:40 - 09:00
PWM
-
DUB
13h 20m
1 stop
JetBlue Logo
11:30 - 00:25
DUB
-
PWM
17h 55m
1 stop
€614JetBlue
Thu, 6 Aug - Wed, 19 Aug

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United Airlines flights from Portland, Maine to Dublin

Our best United Airlines deals on Portland, Maine to Dublin flight tickets
United Airlines
13 Aug
PWM09:49Portland
16h 31m
1 stop
DUB07:20Dublin
20 Aug
DUB09:20Dublin
34h 14m
2 stops
PWM14:34Portland
€600
United Airlines
6 Dec
PWM11:17Portland
17h 38m
1 stop
DUB09:55Dublin
10 Dec
DUB09:00Dublin
42h 57m
2 stops
PWM22:57Portland
€605
United Airlines
6 Dec
PWM06:00Portland
23h 20m
2 stops
DUB10:20Dublin
10 Dec
DUB09:00Dublin
42h 57m
2 stops
PWM22:57Portland
€609

Delta flights from Portland, Maine to Dublin

Our best Delta deals on Portland, Maine to Dublin flight tickets
Delta
10 Nov
PWM10:00Portland
17h 45m
1 stop
DUB08:45Dublin
24 Nov
DUB08:50Dublin
18h 33m
2 stops
PWM22:23Portland
€616
Delta
10 Nov
PWM06:00Portland
20h 45m
1 stop
DUB07:45Dublin
24 Nov
DUB10:45Dublin
18h 04m
1 stop
PWM23:49Portland
€618
Delta
10 Nov
PWM06:00Portland
20h 45m
1 stop
DUB07:45Dublin
24 Nov
DUB10:45Dublin
18h 04m
1 stop
PWM23:49Portland
€619

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 14 July 2026.
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

Cheapest return flight

PortlandDublin

PWM - DUB

PWMDUB

Portland

Fri 21/8

06:10-09:00

1 stop21h 50m

Dublin

Wed 26/8

11:30-00:25

1 stop17h 55m

€555
Fastest return journey

PortlandDublin

PWM - DUB

PWMDUB

Portland

Thu 27/8

14:40-09:00

1 stop13h 20m

Dublin

Wed 2/9

11:30-00:25

1 stop17h 55m

€572

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 19/8

06:00-07:45

2 stops20h 45m

Dublin

Tue 25/8

09:50-18:29

2 stops37h 39m

€599

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 19/8

06:00-07:45

2 stops20h 45m

Dublin

Sat 29/8

09:20-18:29

2 stops38h 09m

€602

PortlandDublin

PWM - DUB

PWMDUB

Portland

Sun 6/12

11:17-09:55

1 stop17h 38m

Dublin

Thu 10/12

09:00-22:57

2 stops42h 57m

€605

PortlandDublin

PWM - DUB

PWMDUB

Portland

Fri 7/8

06:00-08:15

2 stops21h 15m

Dublin

Thu 20/8

09:20-23:32

2 stops43h 12m

€607

PortlandDublin

PWM - DUB

PWMDUB

Portland

Sat 8/8

06:00-07:45

2 stops44h 45m

Dublin

Thu 20/8

09:20-23:32

2 stops43h 12m

€608

PortlandDublin

PWM - DUB

PWMDUB

Portland

Sun 6/12

06:00-10:20

2 stops23h 20m

Dublin

Thu 10/12

09:00-22:57

2 stops42h 57m

€609

PortlandDublin

PWM - DUB

PWMDUB

Portland

Sun 6/12

06:00-07:10

2 stops20h 10m

Dublin

Thu 10/12

09:00-22:57

2 stops42h 57m

€612

PortlandDublin

PWM - DUB

PWMDUB

Portland

Thu 6/8

14:40-09:00

1 stop13h 20m

Dublin

Wed 19/8

11:30-00:25

1 stop17h 55m

€614

Flights are sorted by cheapest return flights first.

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

See travel insights to Dublin from

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

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 Dublin?

JetBlue, United Airlines, and Aer Lingus are the most popular carriers operating from Portland to Dublin

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

Fastest flight time

16h 30m

Direct flights

None
The fastest flight from Portland, Maine to Dublin takes 16h 30m
There are no direct flights from Portland, Maine to Dublin. There are no popular flight routes from Portland, Maine to Dublin.
Search flight deals

Frequently asked questions about flying 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 16h 30m 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.

Travelling to a place near Dublin?

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

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

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