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Cheap flights from Portland, Maine to Dublin from €218

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.
KLM Logo
14:51 - 09:15
PWM
-
DUB
13h 24m
1 stop
KLM Logo
13:15 - 00:46
DUB
-
PWM
16h 31m
1 stop
€468KLM
Fri, 1 May - Mon, 4 May
Delta Logo
14:51 - 09:15
PWM
-
DUB
13h 24m
1 stop
Delta Logo
11:00 - 12:05
DUB
-
PWM
30h 05m
2 stops
€473Delta
Fri, 1 May - Mon, 4 May
Delta Logo
06:30 - 09:15
PWM
-
DUB
21h 45m
1 stop
Delta Logo
10:00 - 23:23
DUB
-
PWM
18h 23m
2 stops
€477Delta
Fri, 1 May - Mon, 4 May
Delta Logo
06:30 - 08:20
PWM
-
DUB
20h 50m
2 stops
Delta Logo
10:00 - 23:23
DUB
-
PWM
18h 23m
2 stops
€490Delta
Fri, 1 May - Mon, 4 May
KLM Logo
14:38 - 09:15
PWM
-
DUB
13h 37m
1 stop
KLM Logo
10:00 - 16:07
DUB
-
PWM
11h 07m
1 stop
€496KLM
Sun, 10 May - Mon, 18 May
Delta Logo
14:38 - 09:15
PWM
-
DUB
13h 37m
1 stop
Delta Logo
10:00 - 23:09
DUB
-
PWM
18h 09m
2 stops
€501Delta
Sun, 10 May - Mon, 18 May
Multiple Airlines Logo
14:38 - 09:15
PWM
-
DUB
13h 37m
1 stop
Multiple Airlines Logo
10:00 - 16:07
DUB
-
PWM
11h 07m
1 stop
€524Multiple Airlines
Sat, 30 May - Sat, 6 Jun
Delta Logo
12:50 - 12:40
PWM
-
DUB
18h 50m
2 stops
Delta Logo
10:00 - 23:09
DUB
-
PWM
18h 09m
2 stops
€527Delta
Sun, 10 May - Mon, 18 May
Delta Logo
14:38 - 09:15
PWM
-
DUB
13h 37m
1 stop
Delta Logo
15:00 - 10:22
DUB
-
PWM
24h 22m
2 stops
€528Delta
Sat, 30 May - Sun, 7 Jun
Delta Logo
06:00 - 07:55
PWM
-
DUB
20h 55m
2 stops
Delta Logo
12:00 - 23:09
DUB
-
PWM
16h 09m
2 stops
€529Delta
Sat, 16 May - Sat, 23 May

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KLM flights from Portland, Maine to Dublin

Our best KLM deals on Portland, Maine to Dublin flight tickets
KLM
20 Apr
PWM14:51Portland
13h 24m
1 stop
DUB09:15Dublin
3 May
DUB13:15Dublin
16h 31m
1 stop
PWM00:46Portland
€463
KLM
20 Apr
PWM14:51Portland
13h 24m
1 stop
DUB09:15Dublin
27 Apr
DUB13:15Dublin
16h 31m
1 stop
PWM00:46Portland
€468
KLM
10 May
PWM14:38Portland
13h 37m
1 stop
DUB09:15Dublin
18 May
DUB10:00Dublin
11h 07m
1 stop
PWM16:07Portland
€496

Delta flights from Portland, Maine to Dublin

Our best Delta deals on Portland, Maine to Dublin flight tickets
Delta
20 Apr
PWM14:51Portland
13h 24m
1 stop
DUB09:15Dublin
27 Apr
DUB11:00Dublin
30h 05m
2 stops
PWM12:05Portland
€472
Delta
24 Apr
PWM05:21Portland
21h 34m
2 stops
DUB07:55Dublin
2 May
DUB10:00Dublin
18h 23m
2 stops
PWM23:23Portland
€473
Delta
1 May
PWM06:30Portland
21h 45m
1 stop
DUB09:15Dublin
4 May
DUB10:00Dublin
18h 23m
2 stops
PWM23:23Portland
€477

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 19 April 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 1/5

14:51-09:15

1 stop13h 24m

Dublin

Mon 4/5

13:15-00:46

1 stop16h 31m

€468

PortlandDublin

PWM - DUB

PWMDUB

Portland

Fri 1/5

14:51-09:15

1 stop13h 24m

Dublin

Mon 4/5

11:00-12:05

2 stops30h 05m

€473

PortlandDublin

PWM - DUB

PWMDUB

Portland

Fri 1/5

06:30-09:15

1 stop21h 45m

Dublin

Mon 4/5

10:00-23:23

2 stops18h 23m

€477

PortlandDublin

PWM - DUB

PWMDUB

Portland

Fri 1/5

06:30-08:20

2 stops20h 50m

Dublin

Mon 4/5

10:00-23:23

2 stops18h 23m

€490
Fastest return journey

PortlandDublin

PWM - DUB

PWMDUB

Portland

Sun 10/5

14:38-09:15

1 stop13h 37m

Dublin

Mon 18/5

10:00-16:07

1 stop11h 07m

€496

PortlandDublin

PWM - DUB

PWMDUB

Portland

Sun 10/5

14:38-09:15

1 stop13h 37m

Dublin

Mon 18/5

10:00-23:09

2 stops18h 09m

€501

PortlandDublin

PWM - DUB

PWMDUB

Portland

Sat 30/5

14:38-09:15

1 stop13h 37m

Dublin

Sat 6/6

10:00-16:07

1 stop11h 07m

€524

PortlandDublin

PWM - DUB

PWMDUB

Portland

Sun 10/5

12:50-12:40

2 stops18h 50m

Dublin

Mon 18/5

10:00-23:09

2 stops18h 09m

€527

PortlandDublin

PWM - DUB

PWMDUB

Portland

Sat 30/5

14:38-09:15

1 stop13h 37m

Dublin

Sun 7/6

15:00-10:22

2 stops24h 22m

€528

PortlandDublin

PWM - DUB

PWMDUB

Portland

Sat 16/5

06:00-07:55

2 stops20h 55m

Dublin

Sat 23/5

12:00-23:09

2 stops16h 09m

€529

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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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 typical price of a round-trip flight between Portland, Maine and 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

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 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
Cavan
Wicklow
Dundalk
Naas
Tullamore
Kildare
Bray
Swords
Gorey
Leixlip
Mullingar
Malahide
Maynooth
Carlingford
Castleknock
Enniscorthy
Arklow
Thurles

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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