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Cheap flights from Portland, Maine to Dublin from €190

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 10/5. 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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Find the cheapest flights from Portland, Maine to Dublin

Cheap return flights

Enter your travel dates to find the best prices.
Delta Logo
06:18 - 16:20
PWM
-
DUB
29h 02m
2 stops
Delta Logo
08:50 - 23:06
DUB
-
PWM
19h 16m
2 stops
€417Delta
Thu, 26 Feb - Thu, 5 Mar
Delta Logo
06:18 - 12:40
PWM
-
DUB
25h 22m
2 stops
Delta Logo
09:45 - 23:06
DUB
-
PWM
18h 21m
1 stop
€419Delta
Thu, 26 Feb - Thu, 5 Mar
KLM Logo
14:30 - 12:40
PWM
-
DUB
18h 10m
2 stops
KLM Logo
05:55 - 16:06
DUB
-
PWM
15h 11m
2 stops
€451KLM
Wed, 25 Mar - Wed, 1 Apr
KLM Logo
14:30 - 12:40
PWM
-
DUB
18h 10m
2 stops
KLM Logo
11:00 - 23:22
DUB
-
PWM
17h 22m
1 stop
€453KLM
Wed, 25 Mar - Wed, 1 Apr
United Airlines Logo
16:23 - 08:10
PWM
-
DUB
11h 47m
1 stop
United Airlines Logo
12:30 - 18:58
DUB
-
PWM
11h 28m
1 stop
€474United Airlines
Tue, 24 Mar - Tue, 31 Mar
United Airlines Logo
19:31 - 09:55
PWM
-
DUB
9h 24m
1 stop
United Airlines Logo
09:30 - 18:25
DUB
-
PWM
12h 55m
1 stop
€511United Airlines
Wed, 4 Mar - Sun, 8 Mar
United Airlines Logo
19:31 - 09:55
PWM
-
DUB
9h 24m
1 stop
United Airlines Logo
08:00 - 19:13
DUB
-
PWM
39h 13m
2 stops
€513United Airlines
Wed, 4 Mar - Sun, 8 Mar
United Airlines Logo
15:05 - 07:30
PWM
-
DUB
11h 25m
1 stop
United Airlines Logo
08:00 - 15:14
DUB
-
PWM
35h 14m
2 stops
€514United Airlines
Wed, 4 Mar - Sun, 8 Mar
United Airlines Logo
15:05 - 10:20
PWM
-
DUB
14h 15m
2 stops
United Airlines Logo
08:00 - 15:14
DUB
-
PWM
35h 14m
2 stops
€517United Airlines
Wed, 4 Mar - Sun, 8 Mar
United Airlines Logo
19:07 - 09:55
PWM
-
DUB
10h 48m
1 stop
United Airlines Logo
08:50 - 14:37
DUB
-
PWM
10h 47m
1 stop
€536United Airlines
Wed, 25 Mar - Wed, 1 Apr

Aer Lingus flights from Portland, Maine to Dublin

Our best Aer Lingus deals on Portland, Maine to Dublin flight tickets
Aer Lingus
10 Apr
PWM07:07Portland
17h 03m
1 stop
DUB05:10Dublin
16 Apr
DUB16:10Dublin
12h 12m
1 stop
PWM23:22Portland
€669
Aer Lingus
14 Mar
PWM18:49Portland
30h 16m
1 stop
DUB05:05Dublin
18 Mar
DUB13:00Dublin
13h 59m
1 stop
PWM22:59Portland
€821

United Airlines flights from Portland, Maine to Dublin

Our best United Airlines deals on Portland, Maine to Dublin flight tickets
United Airlines
24 Mar
PWM16:23Portland
11h 47m
1 stop
DUB08:10Dublin
31 Mar
DUB12:30Dublin
11h 28m
1 stop
PWM18:58Portland
€474
United Airlines
4 Mar
PWM19:31Portland
9h 24m
1 stop
DUB09:55Dublin
8 Mar
DUB09:30Dublin
12h 55m
1 stop
PWM18:25Portland
€511
United Airlines
4 Mar
PWM19:31Portland
9h 24m
1 stop
DUB09:55Dublin
8 Mar
DUB08:00Dublin
39h 13m
2 stops
PWM19:13Portland
€513

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 9 February 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

PortlandDublin

PWM - DUB

PWMDUB

Portland

Thu 26/2

06:18-16:20

2 stops29h 02m

Dublin

Thu 5/3

08:50-23:06

2 stops19h 16m

€417

PortlandDublin

PWM - DUB

PWMDUB

Portland

Thu 26/2

06:18-12:40

2 stops25h 22m

Dublin

Thu 5/3

09:45-23:06

1 stop18h 21m

€419

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 25/3

14:30-12:40

2 stops18h 10m

Dublin

Wed 1/4

05:55-16:06

2 stops15h 11m

€451

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 25/3

14:30-12:40

2 stops18h 10m

Dublin

Wed 1/4

11:00-23:22

1 stop17h 22m

€453

PortlandDublin

PWM - DUB

PWMDUB

Portland

Tue 24/3

16:23-08:10

1 stop11h 47m

Dublin

Tue 31/3

12:30-18:58

1 stop11h 28m

€474

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 4/3

19:31-09:55

1 stop9h 24m

Dublin

Sun 8/3

09:30-18:25

1 stop12h 55m

€511

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 4/3

19:31-09:55

1 stop9h 24m

Dublin

Sun 8/3

08:00-19:13

2 stops39h 13m

€513

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 4/3

15:05-07:30

1 stop11h 25m

Dublin

Sun 8/3

08:00-15:14

2 stops35h 14m

€514

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 4/3

15:05-10:20

2 stops14h 15m

Dublin

Sun 8/3

08:00-15:14

2 stops35h 14m

€517

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 25/3

19:07-09:55

1 stop10h 48m

Dublin

Wed 1/4

08:50-14:37

1 stop10h 47m

€536

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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?

KLM and Air Canada 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

9h 55m

Direct flights

None
The fastest flight from Portland, Maine to Dublin takes 9h 55m
There are no direct flights from Portland, Maine to Dublin. There are no popular flight routes from Portland, Maine to Dublin.
Search flight deals

  • How far is Portland to Dublin by plane?

    Portland and Dublin are 4666.1 km apart from one another. Typically, this will take 9h 55m 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
Wicklow
Cavan
Naas
Swords
Tullamore
Dundalk
Kildare
Bray
Mullingar
Enniscorthy
Maynooth
Gorey
Malahide
Carlingford
Leixlip
Arklow
Castleknock
Drogheda

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.

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