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Cheap flights from Portland to Dublin from €321

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 28/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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.
Lufthansa Logo
15:50 - 08:10PDX-DUB
32h 20m2 stops
Lufthansa Logo
10:40 - 18:56DUB-PDX
16h 16m1 stop
€363Lufthansa
Find Deal
Sun, 11 Jan - Sat, 24 Jan
British Airways Logo
17:45 - 07:55PDX-DUB
30h 10m1 stop
British Airways Logo
10:45 - 15:55DUB-PDX
13h 10m1 stop
€385British Airways
Find Deal
Wed, 18 Feb - Sun, 1 Mar
British Airways Logo
17:45 - 19:40PDX-DUB
17h 55m1 stop
British Airways Logo
15:10 - 15:55DUB-PDX
32h 45m1 stop
€390British Airways
Find Deal
Sun, 11 Jan - Sat, 24 Jan
Multiple Airlines Logo
15:15 - 16:55PDX-DUB
17h 40m2 stops
Multiple Airlines Logo
08:45 - 18:30DUB-PDX
17h 45m2 stops
€391Multiple Airlines
Find Deal
Mon, 13 Apr - Wed, 22 Apr
United Airlines Logo
23:59 - 09:45PDX-DUB
25h 46m1 stop
United Airlines Logo
09:20 - 09:35DUB-PDX
32h 15m1 stop
€394United Airlines
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Fri, 24 Apr - Fri, 8 May
United Airlines Logo
10:10 - 07:45PDX-DUB
13h 35m1 stop
United Airlines Logo
09:50 - 12:25DUB-PDX
34h 35m2 stops
€395United Airlines
Find Deal
Fri, 8 May - Tue, 12 May
Air Canada Logo
19:00 - 07:10PDX-DUB
28h 10m2 stops
Air Canada Logo
09:00 - 18:49DUB-PDX
41h 49m2 stops
€397Air Canada
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Thu, 19 Feb - Sat, 28 Feb
United Airlines Logo
12:49 - 09:45PDX-DUB
36h 56m2 stops
United Airlines Logo
09:20 - 09:35DUB-PDX
32h 15m1 stop
€398United Airlines
Find Deal
Sat, 25 Apr - Wed, 13 May
United Airlines Logo
23:59 - 08:10PDX-DUB
24h 11m1 stop
United Airlines Logo
09:00 - 00:44DUB-PDX
47h 44m2 stops
€399United Airlines
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Sat, 14 Feb - Sun, 22 Feb
Air Canada Logo
19:00 - 06:10PDX-DUB
28h 10m2 stops
Air Canada Logo
09:50 - 18:54DUB-PDX
41h 04m2 stops
€400Air Canada
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Thu, 19 Mar - Mon, 30 Mar

Lufthansa flights from Portland to Dublin

Our best Lufthansa deals on Portland to Dublin flight tickets
Lufthansa
11 Jan
PDX15:50Portland
32h 20m
2 stops
DUB08:10Dublin
24 Jan
DUB10:40Dublin
16h 16m
1 stop
PDX18:56Portland
€363
Find similar
Lufthansa
2 Dec
PDX10:50Portland
13h 20m
1 stop
DUB08:10Dublin
7 Dec
DUB10:40Dublin
16h 05m
1 stop
PDX18:45Portland
€375
Find similar
Lufthansa
2 Dec
PDX10:50Portland
13h 20m
1 stop
DUB08:10Dublin
7 Dec
DUB10:40Dublin
16h 05m
1 stop
PDX18:45Portland
€376
Find similar

British Airways flights from Portland to Dublin

Our best British Airways deals on Portland to Dublin flight tickets
British Airways
18 Feb
PDX17:45Portland
30h 10m
1 stop
DUB07:55Dublin
1 Mar
DUB10:45Dublin
13h 10m
1 stop
PDX15:55Portland
€385
Find similar
British Airways
11 Jan
PDX17:45Portland
17h 55m
1 stop
DUB19:40Dublin
24 Jan
DUB15:10Dublin
32h 45m
1 stop
PDX15:55Portland
€390
Find similar
British Airways
22 Feb
PDX17:45Portland
17h 55m
1 stop
DUB19:40Dublin
28 Feb
DUB17:55Dublin
30h 00m
1 stop
PDX15:55Portland
€401
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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 25 November 2025.
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

PortlandDublin

PDX - DUB

PDXDUB

Portland

Sun 11/1

15:50-08:10

2 stops32h 20m

Dublin

Sat 24/1

10:40-18:56

1 stop16h 16m

€363

PortlandDublin

PDX - DUB

PDXDUB

Portland

Wed 18/2

17:45-07:55

1 stop30h 10m

Dublin

Sun 1/3

10:45-15:55

1 stop13h 10m

€385

PortlandDublin

PDX - DUB

PDXDUB

Portland

Sun 11/1

17:45-19:40

1 stop17h 55m

Dublin

Sat 24/1

15:10-15:55

1 stop32h 45m

€390

PortlandDublin

PDX - DUB

PDXDUB

Portland

Mon 13/4

15:15-16:55

2 stops17h 40m

Dublin

Wed 22/4

08:45-18:30

2 stops17h 45m

€391

PortlandDublin

PDX - DUB

PDXDUB

Portland

Fri 24/4

23:59-09:45

1 stop25h 46m

Dublin

Fri 8/5

09:20-09:35

1 stop32h 15m

€394

PortlandDublin

PDX - DUB

PDXDUB

Portland

Fri 8/5

10:10-07:45

1 stop13h 35m

Dublin

Tue 12/5

09:50-12:25

2 stops34h 35m

€395

PortlandDublin

PDX - DUB

PDXDUB

Portland

Thu 19/2

19:00-07:10

2 stops28h 10m

Dublin

Sat 28/2

09:00-18:49

2 stops41h 49m

€397

PortlandDublin

PDX - DUB

PDXDUB

Portland

Sat 25/4

12:49-09:45

2 stops36h 56m

Dublin

Wed 13/5

09:20-09:35

1 stop32h 15m

€398

PortlandDublin

PDX - DUB

PDXDUB

Portland

Sat 14/2

23:59-08:10

1 stop24h 11m

Dublin

Sun 22/2

09:00-00:44

2 stops47h 44m

€399

PortlandDublin

PDX - DUB

PDXDUB

Portland

Thu 19/3

19:00-06:10

2 stops28h 10m

Dublin

Mon 30/3

09:50-18:54

2 stops41h 04m

€400

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 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 €449.

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

Our data shows that Monday is the least expensive day to fly to Dublin. Tickets to fly out on this day can be as low as €492. If your travel schedule is flexible, try to avoid departing on a Tuesday because tickets tend to average around €1,204. 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 to Dublin flights are usually those with departure times at midday. Our users have found flights to Dublin at midday for as low as €692. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are €740 on average. Flights to Dublin from Portland in the morning are generally more expensive because this time of day is more convenient for travellers’ schedules.

How far in advance should I book a flight 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 €534 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 €501 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

Direct flights

None
There are no direct flights from Portland to Dublin. There are no popular flight routes from Portland to Dublin.
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  • How far is Portland to Dublin by plane?

    A flight from Portland to Dublin will travel around 7475.1 km. Typically, this will take 13h 14m 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
Wicklow
Swords
Cavan
Dundalk
Tullamore
Enniscorthy
Kildare
Bray
Mullingar
Naas
Arklow
Carlingford
Maynooth
Leixlip
Drogheda
Gorey
Malahide
Castleknock

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.

An easier way to manage your Dublin trip

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