How long is the flight from Portland to Northern Ireland?

Departing from Portland to Northern Ireland will take you 16h 10m. The distance from Portland to Northern Ireland is about 4585 mi. Both multi-stop and nonstop flights can be found to your destination and back.

In terms of precipitation, rainfall in Northern Ireland ranges from 2.0 - 3.5 inches per month. October is typically the wettest month, when rainfall can reach 3.5 in. April is typically the driest time to visit Northern Ireland when rainfall is around 2.0 in.

If weather is an important factor for your trip to Northern Ireland, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 60.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 41.0 F).

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

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Portland to Northern Ireland as you normally would.

What airport do you fly from for flights from Portland to Northern Ireland?

Portland (PDX), located 6.0 mi from the city center, is the airport you fly out of when you book flights from Portland to Northern Ireland.

Can I find deals for flights from Portland to Northern Ireland that include hotel bookings?

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

How can I find direct flights from Portland to Northern Ireland?

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

Can I find deals for business class flights from Portland to Northern Ireland?

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

$906+ Cheap Flights from Portland to Northern Ireland

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Cheap flight deals from Portland to Northern Ireland

Best

Best flights from Portland to Northern Ireland
Discover carefully curated flight deals from Portland to Northern Ireland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 10, 2026.

Mon 5/38:25 pm -

1 stop16h 10m

Thu 5/612:45 pm -

1 stop13h 50m

Deal found 11/6

$906

Sat 5/81:55 pm -

2 stops40h 40m

Sat 5/156:30 am -

1 stop20h 05m

Deal found 11/9

$943

Fri 5/711:20 am -

2 stops20h 10m

Sun 5/166:30 am -

1 stop20h 05m

Deal found 11/5

$1,009

Fri 5/71:55 pm -

2 stops17h 35m

Sun 5/161:10 pm -

1 stop13h 25m

Deal found 11/6

$1,001

Fri 5/711:20 am -

2 stops20h 10m

Sun 5/163:50 pm -

1 stop34h 45m

Deal found 11/9

$1,010

Find flight deals from Portland to Northern Ireland

Round-trip from	$905 (British Airways)

From Portland to Northern Ireland

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Portland to Northern Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

PortlandBelfast

PDX Portland - BHD Belfast City

PDXBHD

Portland

Mon 5/3

8:25 pm-8:35 pm

1 stop16h 10m

Belfast City

Thu 5/6

12:45 pm-6:35 pm

1 stop13h 50m

$906

PortlandBelfast

PDX Portland - BHD Belfast City

PDXBHD

Portland

Sat 5/8

1:55 pm-2:35 pm

2 stops40h 40m

Belfast City

Sat 5/15

6:30 am-6:35 pm

1 stop20h 05m

$943

PortlandBelfast

PDX Portland - BHD Belfast City

PDXBHD

Portland

Fri 5/7

1:55 pm-3:30 pm

2 stops17h 35m

Belfast City

Sun 5/16

1:10 pm-6:35 pm

1 stop13h 25m

$1,001

PortlandBelfast

PDX Portland - BHD Belfast City

PDXBHD

Portland

Fri 5/7

11:20 am-3:30 pm

2 stops20h 10m

Belfast City

Sun 5/16

6:30 am-6:35 pm

1 stop20h 05m

$1,009

PortlandBelfast

PDX Portland - BHD Belfast City

PDXBHD

Portland

Fri 5/7

11:20 am-3:30 pm

2 stops20h 10m

Belfast City

Sun 5/16

3:50 pm-6:35 pm

1 stop34h 45m

$1,010

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/6

Sorted by cheapest first

Best time to book a flight from Portland to Northern Ireland

Have a flexible travel schedule? Discover the best time to fly to Northern Ireland from Portland with our price prediction graph.

PDX-BHD

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 Northern Ireland

PDX-GBNIR

PDX-BHD

No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Northern Ireland

Peruse reviews from past customers who have flown with British Airways from Portland to Northern Ireland to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

British Airways

6.7

Okay

8,286 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Jun 2026

IAH - LHR

Airline was good the flight attendant were very helpful and kind. The problem I had is with cheap tickets, my ticket was not allowed one check in baggage this was new to me. I do a lot of traveling overseas and 1 check in baggage is always allowed. Also I bought insurance for my ticket it proved to be useless. I have called several times and spoke to your customer service, not one single person mentioned it to me that baggage was not allowed. All this additional expense was too much for me. I even asked one of your customer service representative I need to buy extra baggage should I buy it now and he told me when you receive check in information you can buy it @ that time never mentioned it to me that my ticket didn’t include baggage. It was very frustrating. I will never use cheap ticket again.

British Airways

6.7

Okay

8,286 reviews

British Airways

6.7

Okay

8,286 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Jun 2026

IAH - LHR

Related info for your journey

What airport do you fly from for flights from Portland to Northern Ireland?
Portland (PDX), located 6.0 mi from the city center, is the airport you fly out of when you book flights from Portland to Northern Ireland.
How long is the flight from Portland to Northern Ireland?
Departing from Portland to Northern Ireland will take you 16h 10m. The distance from Portland to Northern Ireland is about 4585 mi. Both multi-stop and nonstop flights can be found to your destination and back.
Can I find deals for flights from Portland to Northern Ireland that include hotel bookings?
Yes. In addition to deals on Portland to Northern Ireland flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Portland to Northern Ireland?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to Northern Ireland.
Can I find deals for business class flights from Portland to Northern Ireland?
Yes. Cheapflights offers flight deals from Portland to Northern Ireland by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Portland to Manchester flights

Boise to Edinburgh flights

Top airline flying from Portland to Northern Ireland

Airline	Cheapest	Average	Flexibility	On-time
British Airways	Cheapest$776	Average$1,316	FlexibilityNo cancel fee	On-time70%

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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 5/3. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Portland to Northern Ireland with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Portland to Northern Ireland

Best flights from Portland to Northern Ireland
Discover carefully curated flight deals from Portland to Northern Ireland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 10, 2026.

Discover carefully curated flight deals from Portland to Northern Ireland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 10, 2026.

Find flight deals from Portland to Northern Ireland

Round-trip from

Cheapflights Fare Finder

Use the filters below to find and compare flights from Portland to Northern Ireland that are best for you.

Best time to book a flight from Portland to Northern Ireland

Have a flexible travel schedule? Discover the best time to fly to Northern Ireland from Portland with our price prediction graph.

Cheapflights Insights

Reviews of airlines servicing Northern Ireland

Peruse reviews from past customers who have flown with British Airways from Portland to Northern Ireland to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

What airport do you fly from for flights from Portland to Northern Ireland?

How long is the flight from Portland to Northern Ireland?

Can I find deals for flights from Portland to Northern Ireland that include hotel bookings?

How can I find direct flights from Portland to Northern Ireland?

Can I find deals for business class flights from Portland to Northern Ireland?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Portland to Northern Ireland

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Northern Ireland by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Portland to Northern Ireland by cabin class

Find flights from Portland to Northern Ireland, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Portland and Northern Ireland flights

Browse other Portland and Northern Ireland flight options. Last updated on November 10, 2026.

Popular flight searches

Check out other popular destinations found by fellow travelers in 2026

Top airline flying from Portland to Northern Ireland

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Book with Flexibility

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$906+ Cheap flights from Portland (PDX) to Northern Ireland

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 5/3. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Portland to Northern Ireland with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Portland to Northern Ireland

Best flights from Portland to Northern IrelandDiscover carefully curated flight deals from Portland to Northern Ireland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 10, 2026.

Discover carefully curated flight deals from Portland to Northern Ireland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 10, 2026.

Find flight deals from Portland to Northern Ireland

Round-trip from

Cheapflights Fare Finder

Use the filters below to find and compare flights from Portland to Northern Ireland that are best for you.

Best time to book a flight from Portland to Northern Ireland

Have a flexible travel schedule? Discover the best time to fly to Northern Ireland from Portland with our price prediction graph.

Cheapflights Insights

Reviews of airlines servicing Northern Ireland

Peruse reviews from past customers who have flown with British Airways from Portland to Northern Ireland to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

What airport do you fly from for flights from Portland to Northern Ireland?

How long is the flight from Portland to Northern Ireland?

Can I find deals for flights from Portland to Northern Ireland that include hotel bookings?

How can I find direct flights from Portland to Northern Ireland?

Can I find deals for business class flights from Portland to Northern Ireland?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Portland to Northern Ireland

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Northern Ireland by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Portland to Northern Ireland by cabin class

Find flights from Portland to Northern Ireland, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Portland and Northern Ireland flights

Browse other Portland and Northern Ireland flight options. Last updated on November 10, 2026.

Popular flight searches

Check out other popular destinations found by fellow travelers in 2026

Top airline flying from Portland to Northern Ireland

100% Free

Book with Flexibility

Travel Smart

Best flights from Portland to Northern Ireland
Discover carefully curated flight deals from Portland to Northern Ireland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 10, 2026.