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

Currently, February is the cheapest month in which you can book a flight from Portland to Northern Ireland (average of $657). Flying from Portland to Northern Ireland in June is currently the most expensive (average of $1,189). 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.

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 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.

$414+ Flights from Portland to Northern Ireland

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Cheap flight deals from Portland to Northern Ireland

Round-trip from	$729 (Ovago)
One-way from	$414 (FlightHub)

From Portland to Northern Ireland

Search Deals

One-way flight from Portland to Northern Ireland

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Find flight deals from Portland to Northern Ireland

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 julio 30, 2025.

sáb. 8/2311:59 pmPDX - BHD

2 stops25h 21mBritish Airways

dom. 8/316:50 amBHD - PDX

2 stops20h 03mBritish Airways

Deal found 7/28

$729

sáb. 8/231:15 pmPDX - BHD

1 stop24h 00mKLM

dom. 8/315:25 pmBHD - PDX

1 stop25h 55mKLM

Deal found 7/28

$866

dom. 8/33:20 pmPDX - BFS

2 stops23h 50mMultiple Airlines

dom. 8/1010:55 pmBFS - PDX

3 stops32h 06mMultiple Airlines

Deal found 7/28

$1,643

dom. 8/310:05 amPDX - BHD

3 stops26h 20mMultiple Airlines

dom. 8/107:30 amBHD - PDX

3 stops23h 31mMultiple Airlines

Deal found 7/28

$1,985

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 julio 30, 2025.

sáb. 8/2311:59 pmPDX - BHD

2 stops25h 21mBritish Airways

dom. 8/316:50 amBHD - PDX

2 stops20h 03mBritish Airways

Deal found 7/28

$729

sáb. 8/231:15 pmPDX - BHD

1 stop24h 00mKLM

dom. 8/315:25 pmBHD - PDX

1 stop25h 55mKLM

Deal found 7/28

$866

Last-minute flights from Portland to Northern Ireland
Discover last-minute flight deals from Portland to Northern Ireland. Data last updated julio 30, 2025 and is based on user searches.

dom. 8/33:20 pmPDX - BFS

2 stops23h 50mMultiple Airlines

dom. 8/1010:55 pmBFS - PDX

3 stops32h 06mMultiple Airlines

Deal found 7/28

$1,643

dom. 8/310:05 amPDX - BHD

3 stops26h 20mMultiple Airlines

dom. 8/107:30 amBHD - PDX

3 stops23h 31mMultiple Airlines

Deal found 7/28

$1,985

sáb. 8/2311:59 pmPDX - BHD

2 stops25h 21mBritish Airways

dom. 8/316:50 amBHD - PDX

2 stops20h 03mBritish Airways

Deal found 7/28

$729

sáb. 8/231:15 pmPDX - BHD

1 stop24h 00mKLM

dom. 8/315:25 pmBHD - PDX

1 stop25h 55mKLM

Deal found 7/28

$866

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 julio 30, 2025.

dom. 9/76:07 amPDX - BHD

2 stops28h 38mBritish Airways

Deal found 7/28

$414

vie. 8/155:50 pmPDX - BFS

3 stops53h 55mMultiple Airlines

Deal found 7/29

$422

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

PortlandBelfast

PDX - BHD

PDXBHD

Portland

sáb. 8/23

11:59 pm-9:20 am

2 stops25h 21m

Belfast City

dom. 8/31

6:50 am-6:53 pm

2 stops20h 03m

$729

PortlandBelfast

PDX - BHD

PDXBHD

Portland

sáb. 8/23

1:15 pm-9:15 pm

1 stop24h 00m

Belfast City

dom. 8/31

5:25 pm-11:20 am

1 stop25h 55m

$866

PortlandBelfast

PDX - BHD

PDXBHD

Portland

dom. 9/7

6:07 am-6:45 pm

2 stops28h 38m

$414

PortlandBelfast

PDX - BFS

PDXBFS

Portland

vie. 8/15

5:50 pm-7:45 am

3 stops53h 55m

$422

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

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.

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

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.

Reviews of airlines servicing Northern Ireland

Peruse reviews from past customers who have flown with KLM and 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.

KLM

7.8

Good

1,383 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

KLM

7.8

Good

1,383 reviews

KLM

7.8

Good

1,383 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

British Airways

6.6

Okay

7,217 reviews

KLM

7.8

Good

1,383 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

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.
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.
What is the cheapest month to book a flight from Portland to Northern Ireland?
Currently, February is the cheapest month in which you can book a flight from Portland to Northern Ireland (average of $657). Flying from Portland to Northern Ireland in June is currently the most expensive (average of $1,189). 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

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Portland to Northern Ireland

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Top 2 airlines flying from Portland to Northern Ireland

Airline	Cheapest	Average	Flexibility	On-time
American Airlines	Cheapest$638	Average$870	FlexibilityNo cancel fee	On-time71%
British Airways	Cheapest$658	Average$847	FlexibilityNo cancel fee	On-time70%

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$414+ Cheap flights from Portland (PDX) to Northern Ireland

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 9/7. 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

Keep the following information in mind while searching for Portland to Northern Ireland flight deals. Data was last updated julio 30, 2025.

Round-trip from

One-way from

Find 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 julio 30, 2025.

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 julio 30, 2025.

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

Everything you need to know about your flight from Portland to Northern Ireland

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

Find hourly flight availability from Portland to Northern Ireland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated julio 30, 2025.

Reviews of airlines servicing Northern Ireland

Peruse reviews from past customers who have flown with KLM and 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

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

What airport do you fly from for flights 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?

What is the cheapest month to book a flight 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.

Top 2 airlines flying from Portland to Northern Ireland

100% Free

Book with Flexibility

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 julio 30, 2025.