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Cheap flights from Portland to Ireland from €284

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 Ireland departing on 21/1. 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.
Lufthansa Logo
07:00 - 08:10
PDX
-
DUB
17h 10m1 stop
Lufthansa Logo
10:40 - 18:56
DUB
-
PDX
16h 16m1 stop
€369Lufthansa
Thu, 8 Jan - Mon, 19 Jan
Lufthansa Logo
07:00 - 08:10
PDX
-
DUB
17h 10m1 stop
Lufthansa Logo
10:40 - 22:32
DUB
-
PDX
19h 52m1 stop
€371Lufthansa
Thu, 8 Jan - Mon, 19 Jan
Lufthansa Logo
07:00 - 08:10
PDX
-
DUB
17h 10m1 stop
Lufthansa Logo
10:40 - 18:56
DUB
-
PDX
16h 16m1 stop
€372Lufthansa
Thu, 8 Jan - Mon, 19 Jan
United Airlines Logo
23:59 - 07:30
PDX
-
DUB
23h 31m2 stops
United Airlines Logo
09:00 - 18:56
DUB
-
PDX
41h 56m2 stops
€374United Airlines
Sun, 11 Jan - Sat, 24 Jan
United Airlines Logo
23:59 - 08:10
PDX
-
DUB
24h 11m1 stop
United Airlines Logo
09:00 - 18:10
DUB
-
PDX
41h 10m2 stops
€375United Airlines
Sun, 11 Jan - Sat, 24 Jan
Multiple Airlines Logo
19:40 - 07:45
PDX
-
DUB
28h 05m1 stop
Multiple Airlines Logo
09:20 - 18:46
DUB
-
PDX
17h 26m1 stop
€376Multiple Airlines
Fri, 1 May - Sat, 9 May
Multiple Airlines Logo
15:25 - 07:45
PDX
-
DUB
32h 20m1 stop
Multiple Airlines Logo
09:20 - 14:45
DUB
-
PDX
13h 25m1 stop
€378Multiple Airlines
Mon, 4 May - Sun, 10 May
British Airways Logo
17:45 - 17:00
PDX
-
DUB
15h 15m1 stop
British Airways Logo
20:40 - 15:55
DUB
-
PDX
27h 15m1 stop
€381British Airways
Wed, 11 Feb - Tue, 17 Feb
Brussels Airlines Logo
07:00 - 08:10
PDX
-
DUB
17h 10m1 stop
Brussels Airlines Logo
10:40 - 19:14
DUB
-
PDX
15h 34m1 stop
€383Brussels Airlines
Mon, 2 Mar - Wed, 11 Mar
British Airways Logo
17:45 - 16:45
PDX
-
SNN
15h 00m1 stop
British Airways Logo
20:05 - 16:55
SNN
-
PDX
27h 50m1 stop
€540British Airways
Wed, 4 Mar - Thu, 12 Mar

British Airways flights from Portland to Ireland

Our best British Airways deals on Portland to Ireland flight tickets
British Airways
11 Feb
PDX17:45Portland
15h 15m
1 stop
DUB17:00Dublin
17 Feb
DUB20:40Dublin
27h 15m
1 stop
PDX15:55Portland
€381
Find similar
British Airways
16 Jan
PDX17:45Portland
13h 20m
1 stop
DUB15:05Dublin
20 Jan
DUB17:25Dublin
30h 30m
1 stop
PDX15:55Portland
€389
Find similar
British Airways
11 Jan
PDX17:45Portland
17h 55m
1 stop
DUB19:40Dublin
24 Jan
DUB20:40Dublin
27h 15m
1 stop
PDX15:55Portland
€390
Find similar

Brussels Airlines flights from Portland to Ireland

Our best Brussels Airlines deals on Portland to Ireland flight tickets
Brussels Airlines
2 Mar
PDX07:00Portland
17h 10m
1 stop
DUB08:10Dublin
11 Mar
DUB10:40Dublin
15h 34m
1 stop
PDX19:14Portland
€383
Find similar
Brussels Airlines
21 Apr
PDX07:00Portland
18h 45m
1 stop
DUB09:45Dublin
30 Apr
DUB11:35Dublin
14h 30m
1 stop
PDX18:05Portland
€386
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Portland to Ireland 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 December 2025.
Use the filters below to find and compare flights from Portland to Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortlandDublin

PDX - DUB

PDXDUB

Portland

Thu 8/1

07:00-08:10

1 stop17h 10m

Dublin

Mon 19/1

10:40-18:56

1 stop16h 16m

€369

PortlandDublin

PDX - DUB

PDXDUB

Portland

Thu 8/1

07:00-08:10

1 stop17h 10m

Dublin

Mon 19/1

10:40-22:32

1 stop19h 52m

€371

PortlandDublin

PDX - DUB

PDXDUB

Portland

Thu 8/1

07:00-08:10

1 stop17h 10m

Dublin

Mon 19/1

10:40-18:56

1 stop16h 16m

€372

PortlandDublin

PDX - DUB

PDXDUB

Portland

Sun 11/1

23:59-07:30

2 stops23h 31m

Dublin

Sat 24/1

09:00-18:56

2 stops41h 56m

€374

PortlandDublin

PDX - DUB

PDXDUB

Portland

Sun 11/1

23:59-08:10

1 stop24h 11m

Dublin

Sat 24/1

09:00-18:10

2 stops41h 10m

€375

PortlandDublin

PDX - DUB

PDXDUB

Portland

Fri 1/5

19:40-07:45

1 stop28h 05m

Dublin

Sat 9/5

09:20-18:46

1 stop17h 26m

€376

PortlandDublin

PDX - DUB

PDXDUB

Portland

Mon 4/5

15:25-07:45

1 stop32h 20m

Dublin

Sun 10/5

09:20-14:45

1 stop13h 25m

€378

PortlandDublin

PDX - DUB

PDXDUB

Portland

Wed 11/2

17:45-17:00

1 stop15h 15m

Dublin

Tue 17/2

20:40-15:55

1 stop27h 15m

€381

PortlandDublin

PDX - DUB

PDXDUB

Portland

Mon 2/3

07:00-08:10

1 stop17h 10m

Dublin

Wed 11/3

10:40-19:14

1 stop15h 34m

€383

PortlandShannon

PDX - SNN

PDXSNN

Portland

Wed 4/3

17:45-16:45

1 stop15h 00m

Shannon

Thu 12/3

20:05-16:55

1 stop27h 50m

€540

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 Ireland from

How to get the cheapest flight ticket from Portland to Ireland

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 month to fly to Ireland?

The month of February is another great option to travel to Ireland, with average flight prices from Portland averaging around €444.

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

The cheapest day to depart on your flight to Ireland is on a Monday when prices can be found for as low as €487. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Tuesday because tickets tend to average around €1,191. These prices are subject to change though, so be sure to set up a Price Alert for flights to Ireland.

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

At midday is the cheapest time of day to fly from Portland to Ireland when you can find flight prices for as low as €685. Flying to Ireland at midday is an ideal time because this is during off-peak travel hours. In contrast, the most expensive time of day to depart to Ireland is in the morning when prices are around €732.

How far in advance should I book a flight to Ireland?

You are more likely to see cheaper flights to Ireland from Portland when booking weeks ahead of your departure date. In general, you can expect to find flights to Ireland for around €545 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ireland from Portland for as low as €500 on momondo.

Cheap Portland to Ireland flight deals and tips

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

Fastest flight time

11h 35m

Direct flights

None
The fastest flight from Portland to Ireland takes 11h 35m
There are no direct flights from Portland to Ireland. There are no popular flight routes from Portland to Ireland.
Search flight deals

  • When did momondo last update prices for flights from Portland Airport to Ireland?

    Prices for flights from Portland Airport to Ireland are refreshed on a daily basis.

  • How old do you have to be to fly from Portland Airport to Ireland?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to Ireland.

  • What documentation or ID do you need to fly to Ireland?

    The necessary travel and health documents for your Ireland 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.

Why use momondo?

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

It is quick and easy to find Portland to Ireland 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 Ireland that suits you.

Can I find flights from Portland to Ireland with flexible booking policies on momondo?

momondo does allow users to show only those flights to Ireland from Portland which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Portland to Ireland?

momondo helps you find the best flight between Portland and Ireland 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 Ireland right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Ireland, momondo offers a useful price alert feature which will track prices for flights to Ireland from Portland and alert you when they change.

An easier way to manage your Ireland trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
Start using Trips
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Find better results for your trip to Ireland

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