Question 1

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

Accepted Answer

Currently, January is the cheapest month in which you can book a flight from Portland to Northern Ireland (average of £67). Flying from Portland to Northern Ireland in July is currently the most expensive (average of £90). 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.

Question 2

E

Accepted Answer

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.

Question 3

E

Accepted Answer

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).

Question 4

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

Accepted Answer

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.

Question 5

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

Accepted Answer

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.

Question 6

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

Accepted Answer

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

Question 7

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

Accepted Answer

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.

Question 8

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

Accepted Answer

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.

Question 9

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

Accepted Answer

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.

Question 10

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

Accepted Answer

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.

Question 11

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

Accepted Answer

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.

Question 12

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

Accepted Answer

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.

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 6/9. Fares are subject to change and may not be available on all flights or dates of travel.

Find flight deals from Portland to Northern Ireland

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 26 August 2025.

Search for one-way flight options from Portland to Northern Ireland. Find affordable one-way fares based on user searches. Data last updated 26 August 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

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.

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 26 August 2025.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2025

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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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Cheap flights from Portland to Northern Ireland from £273

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 6/9. Fares are subject to change and may not be available on all flights or dates of travel.

Find flight deals from Portland to Northern Ireland

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 26 August 2025.

Search for one-way flight options from Portland to Northern Ireland. Find affordable one-way fares based on user searches. Data last updated 26 August 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

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.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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?

100% Free

Book with Flexibility

Travel Smart

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 26 August 2025.