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Cheap flights from Portland, Maine to Dublin from €326

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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Cheap return flights

Enter your travel dates to find the best prices.
Delta Logo
14:35 - 09:15
PWM
-
DUB
13h 40m1 stop
Delta Logo
10:00 - 11:55
DUB
-
PWM
30h 55m2 stops
€504Delta
Fri, 24 Apr - Sat, 2 May
Delta Logo
06:00 - 08:20
PWM
-
DUB
21h 20m2 stops
Delta Logo
05:55 - 23:59
DUB
-
PWM
23h 04m2 stops
€507Delta
Fri, 24 Apr - Sat, 2 May
Delta Logo
06:00 - 08:20
PWM
-
DUB
21h 20m2 stops
Delta Logo
13:15 - 23:59
DUB
-
PWM
15h 44m1 stop
€509Delta
Fri, 24 Apr - Sat, 2 May
United Airlines Logo
06:00 - 08:10
PWM
-
DUB
21h 10m2 stops
United Airlines Logo
09:30 - 18:52
DUB
-
PWM
14h 22m2 stops
€517United Airlines
Wed, 21 Jan - Sun, 25 Jan
United Airlines Logo
11:12 - 08:10
PWM
-
DUB
15h 58m2 stops
United Airlines Logo
10:40 - 14:39
DUB
-
PWM
32h 59m1 stop
€523United Airlines
Wed, 21 Jan - Sun, 25 Jan
United Airlines Logo
14:27 - 07:20
PWM
-
DUB
11h 53m1 stop
United Airlines Logo
08:50 - 14:36
DUB
-
PWM
10h 46m1 stop
€560United Airlines
Fri, 24 Apr - Sat, 2 May
Delta Logo
12:50 - 07:55
PWM
-
DUB
14h 05m2 stops
Delta Logo
10:00 - 11:55
DUB
-
PWM
30h 55m2 stops
€581Delta
Fri, 24 Apr - Sat, 2 May
United Airlines Logo
15:05 - 07:30
PWM
-
DUB
11h 25m1 stop
United Airlines Logo
09:30 - 18:54
DUB
-
PWM
14h 24m2 stops
€645United Airlines
Sat, 31 Jan - Sat, 7 Feb
American Airlines Logo
06:01 - 06:30
PWM
-
DUB
19h 29m1 stop
American Airlines Logo
09:30 - 22:27
DUB
-
PWM
17h 57m1 stop
€778American Airlines
Fri, 17 Apr - Fri, 24 Apr
Delta Logo
14:35 - 09:15
PWM
-
DUB
13h 40m1 stop
Delta Logo
10:00 - 11:55
DUB
-
PWM
30h 55m2 stops
€824Delta
Fri, 17 Apr - Fri, 24 Apr

Delta flights from Portland, Maine to Dublin

Our best Delta deals on Portland, Maine to Dublin flight tickets
Delta
24 Apr
PWM14:35Portland
13h 40m
1 stop
DUB09:15Dublin
2 May
DUB10:00Dublin
30h 55m
2 stops
PWM11:55Portland
€504
Find similar
Delta
24 Apr
PWM06:00Portland
21h 20m
2 stops
DUB08:20Dublin
2 May
DUB05:55Dublin
23h 04m
2 stops
PWM23:59Portland
€507
Find similar
Delta
24 Apr
PWM06:00Portland
21h 20m
2 stops
DUB08:20Dublin
2 May
DUB13:15Dublin
15h 44m
1 stop
PWM23:59Portland
€509
Find similar

United Airlines flights from Portland, Maine to Dublin

Our best United Airlines deals on Portland, Maine to Dublin flight tickets
United Airlines
21 Jan
PWM06:00Portland
21h 10m
2 stops
DUB08:10Dublin
25 Jan
DUB09:30Dublin
14h 22m
2 stops
PWM18:52Portland
€517
Find similar
United Airlines
21 Jan
PWM11:12Portland
15h 58m
2 stops
DUB08:10Dublin
25 Jan
DUB10:40Dublin
32h 59m
1 stop
PWM14:39Portland
€523
Find similar
United Airlines
24 Apr
PWM10:05Portland
16h 15m
1 stop
DUB07:20Dublin
2 May
DUB08:50Dublin
15h 14m
1 stop
PWM19:04Portland
€560
Find similar

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 18 December 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

Fri 24/4

14:35-09:15

1 stop13h 40m

Dublin

Sat 2/5

10:00-11:55

2 stops30h 55m

€504

PortlandDublin

PWM - DUB

PWMDUB

Portland

Fri 24/4

06:00-08:20

2 stops21h 20m

Dublin

Sat 2/5

05:55-23:59

2 stops23h 04m

€507

PortlandDublin

PWM - DUB

PWMDUB

Portland

Fri 24/4

06:00-08:20

2 stops21h 20m

Dublin

Sat 2/5

13:15-23:59

1 stop15h 44m

€509

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 21/1

06:00-08:10

2 stops21h 10m

Dublin

Sun 25/1

09:30-18:52

2 stops14h 22m

€517

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 21/1

11:12-08:10

2 stops15h 58m

Dublin

Sun 25/1

10:40-14:39

1 stop32h 59m

€523

PortlandDublin

PWM - DUB

PWMDUB

Portland

Fri 24/4

14:27-07:20

1 stop11h 53m

Dublin

Sat 2/5

08:50-14:36

1 stop10h 46m

€560

PortlandDublin

PWM - DUB

PWMDUB

Portland

Fri 24/4

12:50-07:55

2 stops14h 05m

Dublin

Sat 2/5

10:00-11:55

2 stops30h 55m

€581

PortlandDublin

PWM - DUB

PWMDUB

Portland

Sat 31/1

15:05-07:30

1 stop11h 25m

Dublin

Sat 7/2

09:30-18:54

2 stops14h 24m

€645

PortlandDublin

PWM - DUB

PWMDUB

Portland

Fri 17/4

06:01-06:30

1 stop19h 29m

Dublin

Fri 24/4

09:30-22:27

1 stop17h 57m

€778

PortlandDublin

PWM - DUB

PWMDUB

Portland

Fri 17/4

14:35-09:15

1 stop13h 40m

Dublin

Fri 24/4

10:00-11:55

2 stops30h 55m

€824

Flights are sorted by cheapest return flights first.

Showing 1-10 of 16 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 cheapest day to depart on your flight to Dublin?

Our data shows that Saturday is the least expensive day to fly to Dublin. Tickets to fly out on this day can be as low as €432. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around €831. These prices are subject to change though, so be sure to set up a Price Alert for flights to Dublin.

What is the cheapest time of day to depart on your flight to Dublin?

Our data shows that the cheapest Portland, Maine to Dublin flights are usually those with departure times in the afternoon. Our users have found flights to Dublin in the afternoon for as low as €558. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are €632 on average. Flights to Dublin from Portland, Maine in the evening are generally more expensive because this time of day is more convenient for travellers’ schedules.

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

13h 40m

Direct flights

None
The fastest flight from Portland, Maine to Dublin takes 13h 40m
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 13h 40m 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
Swords
Cavan
Dundalk
Tullamore
Kildare
Naas
Enniscorthy
Bray
Mullingar
Carlingford
Arklow
Gorey
Malahide
Maynooth
Leixlip
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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