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Cheap flights from Portland to Dublin from €225

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 to Dublin departing on 28/9. 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 to Dublin

Cheap return flights

Enter your travel dates to find the best prices.
United Airlines Logo
22:40 - 07:45
PDX
-
DUB
25h 05m
2 stops
United Airlines Logo
09:50 - 15:56
DUB
-
PDX
38h 06m
2 stops
€666United Airlines
Sat, 8 Aug - Tue, 25 Aug
Delta Logo
22:55 - 08:45
PDX
-
DUB
25h 50m
1 stop
Delta Logo
13:15 - 21:02
DUB
-
PDX
15h 47m
1 stop
€667Delta
Sat, 19 Sep - Thu, 1 Oct
United Airlines Logo
08:25 - 07:20
PDX
-
DUB
14h 55m
1 stop
United Airlines Logo
09:20 - 20:10
DUB
-
PDX
42h 50m
2 stops
€668United Airlines
Wed, 2 Sep - Wed, 9 Sep
Multiple Airlines Logo
23:40 - 09:45
PDX
-
DUB
26h 05m
1 stop
Multiple Airlines Logo
09:20 - 09:31
DUB
-
PDX
32h 11m
2 stops
€669Multiple Airlines
Sun, 2 Aug - Thu, 20 Aug
United Airlines Logo
10:10 - 07:45
PDX
-
DUB
13h 35m
1 stop
United Airlines Logo
09:20 - 17:49
DUB
-
PDX
40h 29m
2 stops
€670United Airlines
Tue, 8 Sep - Tue, 22 Sep
Air Canada Logo
19:45 - 07:45
PDX
-
DUB
52h 00m
2 stops
Air Canada Logo
09:50 - 09:31
DUB
-
PDX
31h 41m
1 stop
€671Air Canada
Fri, 21 Aug - Fri, 4 Sep
United Airlines Logo
10:56 - 11:10
PDX
-
DUB
16h 14m
1 stop
United Airlines Logo
09:50 - 14:51
DUB
-
PDX
13h 01m
1 stop
€672United Airlines
Wed, 2 Sep - Wed, 9 Sep
United Airlines Logo
22:40 - 09:45
PDX
-
DUB
27h 05m
1 stop
United Airlines Logo
09:50 - 09:31
DUB
-
PDX
31h 41m
1 stop
€673United Airlines
Mon, 27 Jul - Fri, 7 Aug
Air Canada Logo
10:10 - 07:45
PDX
-
DUB
37h 35m
2 stops
Air Canada Logo
09:50 - 19:11
DUB
-
PDX
17h 21m
2 stops
€674Air Canada
Sat, 1 Aug - Thu, 20 Aug
Air Canada Logo
07:00 - 07:45
PDX
-
DUB
16h 45m
2 stops
Air Canada Logo
09:50 - 19:06
DUB
-
PDX
17h 16m
1 stop
€675Air Canada
Wed, 2 Sep - Wed, 16 Sep

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Finnair flights from Portland to Dublin

Our best Finnair deals on Portland to Dublin flight tickets
Finnair
21 Oct
PDX13:28Portland
19h 47m
2 stops
DUB17:15Dublin
28 Oct
DUB13:00Dublin
15h 57m
1 stop
PDX21:57Portland
€670
Finnair
22 Jun
PDX13:45Portland
14h 05m
1 stop
DUB11:50Dublin
20 Jul
DUB09:30Dublin
20h 20m
1 stop
PDX21:50Portland
€929

British Airways flights from Portland to Dublin

Our best British Airways deals on Portland to Dublin flight tickets
British Airways
22 Sept
PDX19:30Portland
15h 20m
1 stop
DUB18:50Dublin
5 Oct
DUB15:15Dublin
34h 25m
1 stop
PDX17:40Portland
€702
British Airways
24 Aug
PDX19:30Portland
15h 10m
1 stop
DUB18:40Dublin
31 Aug
DUB20:30Dublin
29h 10m
1 stop
PDX17:40Portland
€707
British Airways
20 Aug
PDX19:30Portland
15h 50m
1 stop
DUB19:20Dublin
1 Sept
DUB08:35Dublin
17h 05m
1 stop
PDX17:40Portland
€708

momondo Fare Finder

 
Customise your flight search to find flights from Portland 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 16 June 2026.
Use the filters below to find and compare flights from Portland to Dublin that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

PortlandDublin

PDX - DUB

PDXDUB

Portland

Sat 8/8

22:40-07:45

2 stops25h 05m

Dublin

Tue 25/8

09:50-15:56

2 stops38h 06m

€666

PortlandDublin

PDX - DUB

PDXDUB

Portland

Sat 19/9

22:55-08:45

1 stop25h 50m

Dublin

Thu 1/10

13:15-21:02

1 stop15h 47m

€667

PortlandDublin

PDX - DUB

PDXDUB

Portland

Wed 2/9

08:25-07:20

1 stop14h 55m

Dublin

Wed 9/9

09:20-20:10

2 stops42h 50m

€668

PortlandDublin

PDX - DUB

PDXDUB

Portland

Sun 2/8

23:40-09:45

1 stop26h 05m

Dublin

Thu 20/8

09:20-09:31

2 stops32h 11m

€669

PortlandDublin

PDX - DUB

PDXDUB

Portland

Tue 8/9

10:10-07:45

1 stop13h 35m

Dublin

Tue 22/9

09:20-17:49

2 stops40h 29m

€670

PortlandDublin

PDX - DUB

PDXDUB

Portland

Fri 21/8

19:45-07:45

2 stops52h 00m

Dublin

Fri 4/9

09:50-09:31

1 stop31h 41m

€671
Fastest return journey

PortlandDublin

PDX - DUB

PDXDUB

Portland

Wed 2/9

10:56-11:10

1 stop16h 14m

Dublin

Wed 9/9

09:50-14:51

1 stop13h 01m

€672

PortlandDublin

PDX - DUB

PDXDUB

Portland

Mon 27/7

22:40-09:45

1 stop27h 05m

Dublin

Fri 7/8

09:50-09:31

1 stop31h 41m

€673

PortlandDublin

PDX - DUB

PDXDUB

Portland

Sat 1/8

10:10-07:45

2 stops37h 35m

Dublin

Thu 20/8

09:50-19:11

2 stops17h 21m

€674

PortlandDublin

PDX - DUB

PDXDUB

Portland

Wed 2/9

07:00-07:45

2 stops16h 45m

Dublin

Wed 16/9

09:50-19:06

1 stop17h 16m

€675

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 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 and Dublin?

What is the cheapest month to fly to Dublin?

If you aren’t able to travel during the month of November, then book flights to Dublin from Portland during February instead. Flights to Dublin in February, while not as cheap as those in November, still average around €417.

How far in advance should I book a flight from Portland to Dublin?

You are more likely to see cheaper flights to Dublin from Portland when booking weeks ahead of your departure date. In general, you can expect to find flights to Dublin for around €537 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Dublin from Portland for as low as €468 on momondo.

How have Portland to Dublin flight prices changed over time?

When to book flights from Portland to Dublin

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

Cheap Portland to Dublin (PDX to DUB) flight deals and tips

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

Fastest flight time

11h 30m

Direct flights

None
The fastest flight from Portland to Dublin takes 11h 30m
There are no direct flights from Portland to Dublin. There are no popular flight routes from Portland to Dublin.
Search flight deals

Frequently asked questions about flying from Portland to Dublin

  • How far is Portland to Dublin by plane?

    A flight from Portland to Dublin will travel around 7475.1 km. Typically, this will take 11h 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 refresh daily.

  • 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 offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify 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 necessary travel and health documents for your Dublin Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking 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
Carlingford
Enniscorthy
Drogheda
Portmarnock

Why use momondo?

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

It is quick and easy to find Portland to Dublin flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Dublin that suits 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?

momondo helps you find the best flight between Portland and Dublin by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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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