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$347+ Cheap flights from Portland (PDX) to Dublin (DUB)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/13. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — DUB
Nov 26 — Dec 31
Wed 11/26
Wed 12/3
1 adult, Economy
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Cheapflights Tip: The best prices from Portland to Dublin are usually found in November or February, booked 27 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday

Find flight deals from Portland to Dublin

Cheapest flights from Portland to Dublin
Explore the most affordable flight options available from Portland to Dublin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 27, 2025.

This Flighttix deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/132:45 pmPDX - DUB
1 stop11h 30mIcelandair
Wed 11/2611:30 amDUB - PDX
1 stop13h 30mIcelandair
Deal found 10/26$347
This FlightHub deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/82:45 pmPDX - DUB
1 stop11h 30mIcelandair
Mon 12/1511:30 amDUB - PDX
1 stop13h 30mIcelandair
Deal found 10/27$358
This FlightHub deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/12:45 pmPDX - DUB
1 stop11h 30mIcelandair
Fri 12/511:30 amDUB - PDX
1 stop13h 30mIcelandair
Deal found 10/26$382
This KAYAK deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/22:45 pmPDX - DUB
1 stop11h 30mIcelandair
Wed 12/1011:30 amDUB - PDX
1 stop13h 30mIcelandair
Deal found 10/25$405
This KLM deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/107:05 amPDX - DUB
1 stop17h 40mKLM
Wed 11/1910:45 amDUB - PDX
1 stop17h 58mKLM
Deal found 10/27$433
This Priceline deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/910:30 amPDX - DUB
2 stops22h 50mFinnair
Tue 12/169:45 amDUB - PDX
2 stops20h 40mFinnair
Deal found 10/25$437
This Finnair deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/167:40 amPDX - DUB
1 stop15h 30mMultiple Airlines
Tue 11/2511:30 amDUB - PDX
2 stops21h 20mMultiple Airlines
Deal found 10/27$438
This AirNGo deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure AirNGo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/137:00 pmPDX - DUB
2 stops28h 10mAir Canada
Wed 11/269:00 amDUB - PDX
2 stops32h 15mAir Canada
Deal found 10/26$439
This KLM deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/127:05 amPDX - DUB
1 stop17h 40mKLM
Mon 11/175:55 amDUB - PDX
1 stop13h 30mKLM
Deal found 10/25$446
This Delta deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1212:35 amPDX - DUB
2 stops24h 10mDelta
Wed 11/269:45 amDUB - PDX
1 stop32h 43mDelta
Deal found 10/25$450

Cheap flight deals from Portland to Dublin

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) to Dublin (DUB). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 27, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$347
(Flighttix)

Popular in

June

Cheapest in

November

Average price

$541
Provider with most accurate pricing for Portland-Dublin flight deals.
Search Deals
Provider most trusted by Cheapflights users for Portland-Dublin flights.
Search Deals
From Portland to Dublin
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($127 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($25 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Cheapflights Fare Finder

 
Customize 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, Cheapflights users made 2,558,603 searches. Data last updated October 27, 2025.
Use the filters below to find and compare flights from Portland to Dublin that are best for you.

Fly from

Portland

Fly to

Dublin

Route

Depart

Return

Price

PortlandDublin

PDX - DUB

PDXDUB

Portland

Mon 11/10

7:05 am-8:45 am

1 stop17h 40m

Dublin

Wed 11/19

9:45 am-7:35 pm

1 stop17h 50m

$433

PortlandDublin

PDX - DUB

PDXDUB

Portland

Sun 11/30

7:40 am-7:10 am

1 stop15h 30m

Dublin

Thu 12/11

11:30 am-9:07 pm

2 stops17h 37m

$438

PortlandDublin

PDX - DUB

PDXDUB

Portland

Tue 11/18

5:30 am-8:40 am

2 stops19h 10m

Dublin

Thu 12/11

11:30 am-9:07 pm

2 stops17h 37m

$438

PortlandDublin

PDX - DUB

PDXDUB

Portland

Wed 11/12

7:05 am-8:45 am

1 stop17h 40m

Dublin

Mon 11/17

5:55 am-11:25 am

1 stop13h 30m

$446

PortlandDublin

PDX - DUB

PDXDUB

Portland

Wed 11/12

12:35 am-7:45 am

1 stop23h 10m

Dublin

Wed 11/26

11:30 am-7:16 pm

2 stops39h 46m

$451

PortlandDublin

PDX - DUB

PDXDUB

Portland

Thu 11/13

5:30 am-7:10 am

1 stop17h 40m

Dublin

Wed 11/26

11:30 am-9:15 pm

2 stops17h 45m

$451

PortlandDublin

PDX - DUB

PDXDUB

Portland

Tue 11/18

6:00 am-7:45 am

1 stop17h 45m

Dublin

Thu 12/11

6:00 am-10:40 pm

2 stops24h 40m

$452

PortlandDublin

PDX - DUB

PDXDUB

Portland

Mon 11/10

7:05 am-8:45 am

1 stop17h 40m

Dublin

Wed 11/19

6:00 am-5:43 pm

2 stops19h 43m

$452

PortlandDublin

PDX - DUB

PDXDUB

Portland

Mon 12/8

6:10 am-7:45 am

1 stop17h 35m

Dublin

Mon 12/15

5:55 am-8:52 pm

2 stops22h 57m

$456

PortlandDublin

PDX - DUB

PDXDUB

Portland

Fri 12/26

9:00 am-7:10 am

2 stops38h 10m

$395

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/26

Showing 1-10 of 16 results
1
2

Compare providers for flights from Portland to Dublin

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Portland to Dublin in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
AranGrantPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Portland-Dublin flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Portland-Dublin flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Portland-Dublin flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Portland-Dublin flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Portland-Dublin flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Portland to Dublin

Have a flexible travel schedule? Discover the best time to fly to Dublin from Portland with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Portland to Dublin

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

Use this chart to determine the optimal time to book a round-trip flight from Portland to Dublin. Price data was last updated on October 24, 2025.

The price you pay for your flight from Portland to Dublin may vary depending on when you book. For the best chance of a lower fare, look to book 27 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Portland to Dublin?

Currently, December is the cheapest month in which you can book a flight from Portland to Dublin (average of $345). Flying from Portland to Dublin in June is currently the most expensive (average of $675). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from PDX to DUB?

Find hourly flight availability from Portland to Dublin. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 27, 2025.

One of the essential ways to save on airfare from Portland to Dublin is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 14% on airfare.

What is the cheapest day to fly from Portland to Dublin?

Use this chart to determine the cheapest time to fly round-trip from Portland to Dublin. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Portland to Dublin flight should consider departing on Tuesday at noon when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost to fly round-trip from Portland to Dublin?

Reviews of airlines servicing Dublin

Get insights into the airlines that provide service to Dublin. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Dublin. Reviews last updated October 27, 2025.
Get a feel of what it's like to fly with Delta, United Airlines, and Air Canada from Portland to Dublin by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
7,996 reviews

Entertainment

7.9

Crew

8.5

Boarding

8.2

Overall

7.9

Food

7.3

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Delta
7.9
Good
7,996 reviews
Delta
7.9
Good
7,996 reviews

Entertainment

7.9

Crew

8.5

Boarding

8.2

Overall

7.9

Food

7.3

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
United Airlines
7.4
Good
8,997 reviews
Delta
7.9
Good
7,996 reviews

Entertainment

7.9

Crew

8.5

Boarding

8.2

Overall

7.9

Food

7.3

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Air Canada
7.1
Good
10,370 reviews
Delta
7.9
Good
7,996 reviews

Entertainment

7.9

Crew

8.5

Boarding

8.2

Overall

7.9

Food

7.3

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Icelandair
7.1
Good
562 reviews
Delta
7.9
Good
7,996 reviews

Entertainment

7.9

Crew

8.5

Boarding

8.2

Overall

7.9

Food

7.3

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
British Airways
6.7
Okay
7,481 reviews
Delta
7.9
Good
7,996 reviews

Entertainment

7.9

Crew

8.5

Boarding

8.2

Overall

7.9

Food

7.3

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.

Related info for your journey

Find useful and relevant information for your journey from Portland to Dublin. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Portland to Dublin?

    A quick flight from Portland to Dublin can take about 17h 40m. KLM provides one of the quickest options available for as low as $433. There are 4635 mi between Portland and Dublin.

  • What are the cheapest airlines flying from Portland to Dublin round-trip?

    Icelandair, at $358, was found to be the cheapest airline from Portland to Dublin.Alternate airlines to your destination round-trip include Iberia and United Airlines. Icelandair is priced at 41% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Portland to Dublin one-way?

    To fly one-way, consider booking your trip with United Airlines, which is currently one of the cheapest options available, starting at $395. Brussels Airlines flights start at $552 while deals on KLM start at $554 one-way.

  • Where are the most common layover locations when flying from Portland to Dublin?

    Flights departing from Portland and landing in Dublin layover in London most frequently. Reykjavik sees the second most layovers for non-direct flights flying from Portland to Dublin. Vancouver sees the third most layovers on flights from Portland to Dublin.

  • What are some popular things to do or see while on a layover in London?

    London travelers tend to visit Hyde Park, Buckingham Palace, and Piccadilly Circus more than anywhere else. Travelers on a layover in London can visit Hyde Park, Buckingham Palace, and Piccadilly Circus, by traveling 12.5 mi, 13.7 mi, and 14.1 mi, respectively after landing at London Heathrow. Those on a layover in London in need of a rental car can book one at London Heathrow for about $30.

  • What are some popular points of interest to see during a layover in Reykjavik?

    Harpa, Hallgrímskirkja, and Laugardalslaug Geothermal Pool are currently the most popular points of interest in Reykjavik at the moment. Harpa, Hallgrímskirkja and Laugardalslaug Geothermal Pool are located about 23.3 mi, 23.2 mi, and 24.6 mi, respectively from Reykjavik Keflavik Intl if you are interested in checking them out. Travelers can book a car rental at Reykjavik Keflavik Intl for about $48 per day to make their sightseeing more efficient.

  • What are points of interest worth seeing during a layover in Vancouver?

    Most Vancouver visitors opt to spend their time at Orpheum Theatre, Pacific Central Station, and Capilano Suspension Bridge. Orpheum Theatre, Pacific Central Station, and Capilano Suspension Bridge can be visited by traveling about 6.5 mi, 6.6 mi, and 10.6 mi respectively from Vancouver Intl. Those on a layover in Vancouver in need of a rental car can book one at Vancouver Intl for about $39.

  • Where are the least popular layover locations for Portland to Dublin flights?

    Portland to Dublin flights have a layover in Chicago least often. Dallas sees the second fewest layovers for non-direct flights flying from Portland to Dublin.

  • Can I find deals for flights from Portland to Dublin that include hotel bookings?

    Yes. In addition to deals on Portland to Dublin flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Portland to Dublin?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to Dublin.

  • Can I find deals for business class flights from Portland to Dublin?

    Yes. Cheapflights offers flight deals from Portland to Dublin by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Portland to Dublin?

    Currently, December is the cheapest month in which you can book a flight from Portland to Dublin (average of $345). Flying from Portland to Dublin in June is currently the most expensive (average of $675). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Dublin?

Book flights to Dublin if you plan to visit one of these locations
Maynooth
Castleknock
Swords
Wicklow
Leixlip

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Top 10 airlines flying from Portland to Dublin

Discover the top 10 airlines that operate flights from Portland to Dublin. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 27, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$358Average$556FlexibilityNo cancel feeOn-time76%
IberiaCheapest$437Average$583FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$468Average$646FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$473Average$636FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$481Average$740FlexibilityNo cancel feeOn-time71%
KLMCheapest$483Average$632FlexibilityNo cancel feeOn-time75%
Air CanadaCheapest$486Average$727FlexibilityNo cancel feeOn-time67%
DeltaCheapest$488Average$680FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$490Average$650FlexibilityNo cancel feeOn-time76%
Air FranceCheapest$493Average$572FlexibilityNo cancel feeOn-time77%

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