What is the cheapest airline that flies from Portland to Northern Ireland?

British Airways is the most popular carrier operating from Portland to Northern Ireland

When did momondo last update prices for flights from Portland Airport to Northern Ireland?

Prices for flights from Portland Airport to Northern Ireland refresh daily.

How many operators does momondo search for flights from Portland Airport to Northern Ireland?

As of July 2025, there are 2 operators available to choose from for flights from Portland Airport to Northern Ireland.

How old do you have to be to fly from Portland Airport to Northern Ireland?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Portland Airport to Northern Ireland.

What documentation or ID do you need to fly to Northern Ireland?

The required travel and health documents for your Northern Ireland trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Northern Ireland. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$412 Cheap Flights from Portland to Northern Ireland in 2025

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Find the cheapest flights from Portland to Northern Ireland

Round-trip

One-way

Cheap round-trip flights

11:59 pm - 9:20 amPDX-BHD

25h 21m2 stops

6:50 am - 10:04 pmBHD-PDX

23h 14m2 stops

$738British Airways

Find Deal

Sat, Aug 23 - Sun, Aug 31

5:34 am - 9:20 amPDX-BHD

19h 46m2 stops

6:50 am - 6:53 pmBHD-PDX

20h 03m2 stops

$782British Airways

Find Deal

Sat, Aug 23 - Sun, Aug 31

11:59 pm - 1:05 pmPDX-BHD

29h 06m2 stops

7:00 pm - 6:53 pmBHD-PDX

31h 53m2 stops

$797British Airways

Find Deal

Sat, Aug 16 - Sat, Aug 23

11:59 pm - 9:20 amPDX-BHD

25h 21m2 stops

8:05 pm - 5:35 pmBHD-PDX

29h 30m1 stop

$839British Airways

Find Deal

Sat, Aug 23 - Sun, Aug 31

7:25 pm - 7:15 pmPDX-BHD

15h 50m1 stop

6:50 am - 6:53 pmBHD-PDX

20h 03m2 stops

$843British Airways

Find Deal

Sat, Aug 23 - Sun, Aug 31

7:25 pm - 9:20 amPDX-BHD

29h 55m1 stop

7:00 pm - 4:50 pmBHD-PDX

29h 50m2 stops

$914British Airways

Find Deal

Sat, Aug 16 - Sat, Aug 23

7:00 am - 10:10 amPDX-BHD

19h 10m2 stops

6:50 am - 10:04 pmBHD-PDX

23h 14m2 stops

$915British Airways

Find Deal

Sat, Aug 23 - Sun, Aug 31

7:25 pm - 7:15 pmPDX-BHD

15h 50m1 stop

6:50 am - 10:04 pmBHD-PDX

23h 14m2 stops

$984British Airways

Find Deal

Sat, Aug 23 - Sun, Aug 31

7:25 pm - 9:05 amPDX-BHD

29h 40m1 stop

6:50 am - 5:35 pmBHD-PDX

18h 45m1 stop

$986British Airways

Find Deal

Sat, Aug 23 - Sun, Aug 31

1:15 pm - 9:15 pmPDX-BHD

24h 00m1 stop

6:30 am - 11:20 amBHD-PDX

12h 50m1 stop

$1,103KLM

Find Deal

Sat, Aug 16 - Sat, Aug 23

British Airways flights from Portland to Northern Ireland

Our best British Airways deals on Portland to Northern Ireland flight tickets

British Airways

Aug 23

PDX11:59 pmPortland

25h 21m

2 stops

BHD9:20 amBelfast City

Aug 31

BHD6:50 amBelfast City

23h 14m

2 stops

PDX10:04 pmPortland

$738

Find similar

British Airways

Aug 23

PDX5:34 amPortland

19h 46m

2 stops

BHD9:20 amBelfast City

Aug 31

BHD6:50 amBelfast City

20h 03m

2 stops

PDX6:53 pmPortland

$782

Find similar

British Airways

Aug 16

PDX11:59 pmPortland

29h 06m

2 stops

BHD1:05 pmBelfast City

Aug 23

BHD7:00 pmBelfast City

31h 53m

2 stops

PDX6:53 pmPortland

$797

Find similar

Fly from

Fly to

Route

Depart

Return

Price

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Sat 8/23

11:59 pm-9:20 am

2 stops25h 21m

Belfast City

Sun 8/31

6:50 am-10:04 pm

2 stops23h 14m

$738

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Sat 8/23

5:34 am-9:20 am

2 stops19h 46m

Belfast City

Sun 8/31

6:50 am-6:53 pm

2 stops20h 03m

$782

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Sat 8/16

11:59 pm-1:05 pm

2 stops29h 06m

Belfast City

Sat 8/23

7:00 pm-6:53 pm

2 stops31h 53m

$797

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Sat 8/23

11:59 pm-9:20 am

2 stops25h 21m

Belfast City

Sun 8/31

8:05 pm-5:35 pm

1 stop29h 30m

$839

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Sat 8/23

7:25 pm-7:15 pm

1 stop15h 50m

Belfast City

Sun 8/31

6:50 am-6:53 pm

2 stops20h 03m

$843

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Sat 8/16

7:25 pm-9:20 am

1 stop29h 55m

Belfast City

Sat 8/23

7:00 pm-4:50 pm

2 stops29h 50m

$914

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Sat 8/23

7:00 am-10:10 am

2 stops19h 10m

Belfast City

Sun 8/31

6:50 am-10:04 pm

2 stops23h 14m

$915

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Sat 8/23

7:25 pm-7:15 pm

1 stop15h 50m

Belfast City

Sun 8/31

6:50 am-10:04 pm

2 stops23h 14m

$984

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Sat 8/23

7:25 pm-9:05 am

1 stop29h 40m

Belfast City

Sun 8/31

6:50 am-5:35 pm

1 stop18h 45m

$986

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Sat 8/16

1:15 pm-9:15 pm

1 stop24h 00m

Belfast City

Sat 8/23

6:30 am-11:20 am

1 stop12h 50m

$1,103

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Portland to Northern Ireland

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest day to depart on your flight to Northern Ireland?

The cheapest day to depart on your flight to Northern Ireland is on a Sunday when prices can be found for as low as $666. This is often the case because there is less demand to fly during this day of the week. When flying out on a Wednesday, the most expensive travel day of the week, you can expect to see flight prices from Portland to Northern Ireland for around $1,045.

What is the cheapest time of day to depart on your flight to Northern Ireland?

In the afternoon is the cheapest time of day to fly from Portland to Northern Ireland when you can find flight prices for as low as $667. Flying to Northern Ireland in the afternoon is an ideal time because this is during off-peak travel hours. Flights in the evening are often more expensive with an average ticket price of $910.

Cheap Portland to Northern Ireland flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland to Northern Ireland

Best Price Found	$412
Fastest flight time	15h 20m
Direct flights	None
Airports in Northern Ireland	2 airports

The best one-way flight to Northern Ireland from Portland in the past 72 hours is $412. The best round-trip flight deal from Portland to Northern Ireland found on momondo in the last 72 hours is $738.

The fastest flight from Portland to Northern Ireland takes 15h 20m

There are no direct flights from Portland to Northern Ireland. Popular non-direct routes for this connection are Portland Airport - Belfast City Airport and Portland Airport - Belfast Intl Airport.

There are 2 airports near Northern Ireland: Belfast Intl (BFS), Belfast City (BHD)

Search flight deals

When did momondo last update prices for flights from Portland Airport to Northern Ireland?
Prices for flights from Portland Airport to Northern Ireland refresh daily.
How many operators does momondo search for flights from Portland Airport to Northern Ireland?
As of July 2025, there are 2 operators available to choose from for flights from Portland Airport to Northern Ireland.
How old do you have to be to fly from Portland Airport to Northern Ireland?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Portland Airport to Northern Ireland.
What documentation or ID do you need to fly to Northern Ireland?
The required travel and health documents for your Northern Ireland trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Northern Ireland. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Portland to Northern Ireland

Compare and see reviews for airlines that fly from Portland to Northern Ireland with momondo

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $638	Free Cancellation	Rating 7.2 10,000 reviews		Search American Airlines flights
British Airways	PriceFrom $658	Free Cancellation	Rating 6.6 7,222 reviews		Search British Airways flights

Why use momondo?

Why should I use momondo to find a flight deal from Portland to Northern Ireland?

Finding the right flight to Northern Ireland from Portland is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Northern Ireland quick and easy, saving you time and money.

Can I find flights from Portland to Northern Ireland with flexible booking policies on momondo?

All flight searches from Portland to Northern Ireland on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Portland to Northern Ireland?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Portland to Northern Ireland.

I’m not ready to book a flight from Portland to Northern Ireland right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Portland to Northern Ireland now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Northern Ireland and let you know when they change.

An easier way to manage your Northern Ireland trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Find better results for your trip to Northern Ireland

Popular cities in Northern Ireland

Flights to Londonfrom $283

Flights to Manchesterfrom $372

Flights to Edinburghfrom $405

Flights to Glasgowfrom $417

Flights to Birminghamfrom $384

Flights to Belfastfrom $442

Flights to Newcastle upon Tynefrom $462

Flights to Bristolfrom $465

Flights to Invernessfrom $402

Flights to Liverpoolfrom $475

Flights to Aberdeenfrom $506

Flights to Leedsfrom $473

Cheap flights from Portland to Northern Ireland from $412

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to Northern Ireland departing on 9/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Portland to Northern Ireland

Cheap round-trip flights

Cheap one-way flights

British Airways flights from Portland to Northern Ireland

Our best British Airways deals on Portland to Northern Ireland flight tickets

momondo Fare Finder

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

See travel insights to Northern Ireland from

How to get the cheapest flight ticket from Portland to Northern Ireland

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Northern Ireland?

What is the cheapest time of day to depart on your flight to Northern Ireland?

What is the cheapest airline that flies from Portland to Northern Ireland?

British Airways is the most popular carrier operating from Portland to Northern Ireland

Cheap Portland to Northern Ireland flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland to Northern Ireland

Best Price Found

Fastest flight time

Direct flights

Airports in Northern Ireland

When did momondo last update prices for flights from Portland Airport to Northern Ireland?

How many operators does momondo search for flights from Portland Airport to Northern Ireland?

How old do you have to be to fly from Portland Airport to Northern Ireland?

What documentation or ID do you need to fly to Northern Ireland?

Best airlines flying from Portland to Northern Ireland

Compare and see reviews for airlines that fly from Portland to Northern Ireland with momondo

Why use momondo?

Why should I use momondo to find a flight deal from Portland to Northern Ireland?

Can I find flights from Portland to Northern Ireland with flexible booking policies on momondo?

How can momondo help me find flights from Portland to Northern Ireland?

I’m not ready to book a flight from Portland to Northern Ireland right now. Can momondo alert me if prices change?

An easier way to manage your Northern Ireland trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Northern Ireland

Popular cities in Northern Ireland

Popular flights according to clicks in the last 7 days on momondo