How long is the flight from Portland to Northern Ireland?

Airlines like British Airways and Delta fly from Portland to Northern Ireland in about 15h 55m. The time it takes to get you to your destination can typically vary by up to 2h 40m. There are 4585 mi between Portland and Northern Ireland. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

In terms of precipitation, rainfall in Northern Ireland ranges from 50.0 - 90.0 inches per month. October is typically the wettest month, when rainfall can reach 90.0 mm. April is typically the driest time to visit Northern Ireland when rainfall is around 50.0 mm.

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 16.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 5.0 C).

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 holiday 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.

£224+ Cheap Flights from Portland to Northern Ireland

Cheap flight deals from Portland to Northern Ireland

Enter your travel dates to find the best prices.

Cheapest

Best

One-way

Cheapest flights from Portland to Northern Ireland
Explore the most affordable flight options available from Portland to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 August 2026.

Mon 12/1019:30 -

1 stop15h 55m

Thu 22/1012:45 -

1 stop12h 55m

Deal found 19/8£702

Sun 11/1019:30 -

1 stop14h 10m

Thu 22/1006:30 -

1 stop19h 10m

Deal found 19/8£718

Mon 12/1019:30 -

1 stop15h 55m

Thu 22/1009:35 -

2 stops19h 09m

Deal found 19/8£720

Sat 10/1023:00 -

2 stops26h 20m

Mon 19/1017:30 -

1 stop25h 40m

Deal found 19/8£729

Sun 11/1013:12 -

2 stops20h 28m

Fri 23/1006:30 -

1 stop19h 10m

Deal found 19/8£730

Sun 11/1007:00 -

2 stops18h 20m

Fri 23/1009:50 -

2 stops20h 06m

Deal found 19/8£735

Fri 9/1019:30 -

1 stop14h 40m

Mon 19/1018:30 -

1 stop31h 10m

Deal found 19/8£755

Sun 11/1019:30 -

1 stop14h 10m

Sat 24/1019:05 -

1 stop29h 45m

Deal found 19/8£788

Fri 9/1019:30 -

1 stop14h 40m

Sun 25/1020:30 -

1 stop27h 20m

Deal found 19/8£792

Fri 9/1019:30 -

1 stop14h 40m

Sat 24/1019:05 -

1 stop29h 45m

Deal found 19/8£825

Thu 1/1015:30 -

3 stops22h 10m

Thu 8/1006:10 -

3 stops43h 45m

Deal found 16/8£844

Mon 12/1007:18 -

3 stops41h 42m

Thu 22/1016:35 -

3 stops35h 58m

Deal found 19/8£9,568

Find flight deals from Portland to Northern Ireland

Round-trip from	£674
One-way from	£224

British Airways
31/1-2/2
2 total stops
46h 00m total
Portland to Northern Ireland

Search Deals

7/10
3 total stops
36h 00m total
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 return flight

PortlandBelfast

PDX Portland - BHD Belfast City

PDXBHD

Portland

Mon 12/10

19:30-19:25

1 stop15h 55m

Belfast City

Wed 21/10

10:05-17:40

1 stop15h 35m

£718

PortlandBelfast

PDX Portland - BHD Belfast City

PDXBHD

Portland

Wed 14/10

14:20-16:55

2 stops18h 35m

Belfast City

Tue 20/10

09:50-11:10

1 stop33h 20m

£729

PortlandBelfast

PDX Portland - BHD Belfast City

PDXBHD

Portland

Fri 29/1

17:45-14:05

1 stop12h 20m

Belfast City

Sun 7/2

06:30-15:50

1 stop17h 20m

£729

PortlandBelfast

PDX Portland - BHD Belfast City

PDXBHD

Portland

Mon 12/10

07:00-09:20

2 stops18h 20m

Belfast City

Wed 21/10

09:50-21:56

2 stops20h 06m

£735

PortlandBelfast

PDX Portland - BHD Belfast City

PDXBHD

Portland

Mon 12/10

19:30-18:45

1 stop15h 15m

Belfast City

Sun 25/10

20:30-16:50

1 stop27h 20m

£755

Fastest return journey

PortlandBelfast

PDX Portland - BHD Belfast City

PDXBHD

Portland

Sat 10/10

19:30-18:15

1 stop14h 45m

Belfast City

Fri 23/10

12:00-17:40

1 stop13h 40m

£755

PortlandBelfast

PDX Portland - BHD Belfast City

PDXBHD

Portland

Fri 9/10

19:30-18:10

1 stop14h 40m

Belfast City

Mon 19/10

18:30-17:40

1 stop31h 10m

£755

PortlandBelfast

PDX Portland - BHD Belfast City

PDXBHD

Portland

Sun 31/1

10:59-16:50

2 stops21h 51m

Belfast City

Tue 2/2

18:15-15:50

1 stop29h 35m

£838

PortlandBelfast

PDX Portland - BFS Belfast Intl

PDXBFS

Portland

Thu 1/10

15:30-21:40

3 stops22h 10m

Belfast Intl

Thu 8/10

06:10-17:55

3 stops43h 45m

£844

Cheapest one-way

PortlandBelfast

PDX Portland - BHD Belfast City

PDXBHD

Portland

Wed 7/10

15:30-11:30

3 stops36h 00m

£224

Flights are sorted by cheapest return flights first.

Deals found on 16/8

Showing 1-10 of 16 resultsSorted 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

PDX-BFS

Estimated return 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

PDX-BFS

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

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?
Airlines like British Airways and Delta fly from Portland to Northern Ireland in about 15h 55m. The time it takes to get you to your destination can typically vary by up to 2h 40m. There are 4585 mi between Portland and Northern Ireland. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
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 holiday 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.

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How does Cheapflights help users find flights from Portland to Northern Ireland?

Cheapflights helps you search for flights from Portland to Northern Ireland via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Portland to Northern Ireland?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Portland to Northern Ireland for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Portland to Northern Ireland with no change fees?

Certainly. Search results for flights to Northern Ireland from Portland shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Portland to Northern Ireland become cheaper?

Not ready to book yet? You can track prices for flights from Portland to Northern Ireland on Cheapflights with our Price Alert feature and get notified when better prices are available.

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Cheap flights from Portland to Northern Ireland from £224

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Portland to Northern Ireland

Cheapest flights from Portland to Northern IrelandExplore the most affordable flight options available from Portland to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 August 2026.

Explore the most affordable flight options available from Portland to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 August 2026.

Best flights from Portland to Northern IrelandDiscover carefully curated flight deals from Portland to Northern Ireland that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 21 August 2026.

Discover carefully curated flight deals from Portland to Northern Ireland that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 21 August 2026.

One-way flights from Portland to Northern IrelandSearch for one-way flight options from Portland to Northern Ireland. Find affordable one-way fares based on user searches. Data last updated 21 August 2026.

Search for one-way flight options from Portland to Northern Ireland. Find affordable one-way fares based on user searches. Data last updated 21 August 2026.

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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

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Cheapflights Insights

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 hire and/or hotel booking to your travel itinerary.

Direct flights to United Kingdom

Book a non-stop flight to one of these other cities located in United Kingdom.

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 21 August 2026.

Popular flight searches

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Fly with Cheapflights

How does Cheapflights help users find flights from Portland to Northern Ireland?

Why should you use Cheapflights to find cheap flight tickets from Portland to Northern Ireland?

Can Cheapflights find flights from Portland to Northern Ireland with no change fees?

Can Cheapflights notify me if prices for flights from Portland to Northern Ireland become cheaper?

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Travel Smart

Cheapest flights from Portland to Northern Ireland
Explore the most affordable flight options available from Portland to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 August 2026.

Best flights from Portland to Northern Ireland
Discover carefully curated flight deals from Portland to Northern Ireland that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 21 August 2026.

One-way flights from Portland to Northern Ireland
Search for one-way flight options from Portland to Northern Ireland. Find affordable one-way fares based on user searches. Data last updated 21 August 2026.