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 August 2026, there is 1 operator 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.

$387 Cheap Flights from Portland to Northern Ireland in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Portland to Northern Ireland

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

5:45 pm - 6:40 pmPDX Portland-BHD Belfast City

16h 55m1 stop London Heathrow

9:15 am - 3:50 pmBHD Belfast City-PDX Portland

14h 35m1 stop London Heathrow

$908British Airways

Sun, Nov 15 - Wed, Nov 18

5:45 pm - 6:40 pmPDX Portland-BHD Belfast City

16h 55m1 stop London Heathrow

6:35 am - 3:50 pmBHD Belfast City-PDX Portland

17h 15m1 stop London Heathrow

$909British Airways

Sun, Nov 15 - Wed, Nov 18

5:45 pm - 4:50 pmPDX Portland-BHD Belfast City

15h 05m1 stop London Heathrow

4:55 pm - 3:50 pmBHD Belfast City-PDX Portland

30h 55m1 stop London Heathrow

$917British Airways

Sun, Jan 31 - Tue, Feb 2

1:12 pm - 4:45 pmPDX Portland-BHD Belfast City

19h 33m2 stops Chicago O'Hare Intl London Heathrow

6:00 pm - 3:50 pmBHD Belfast City-PDX Portland

29h 50m1 stop London Heathrow

$991British Airways

Sat, Jan 23 - Sat, Jan 30

5:45 pm - 2:15 pmPDX Portland-BHD Belfast City

12h 30m1 stop London Heathrow

6:30 am - 3:50 pmBHD Belfast City-PDX Portland

17h 20m1 stop London Heathrow

$993British Airways

Fri, Jan 29 - Sun, Feb 7

3:30 pm - 6:00 pmPDX Portland-BHD Belfast City

18h 30m3 stops Reykjavik Keflavik Intl Kastrup Copenhagen Edinburgh Turnhouse

7:00 am - 9:31 amBHD Belfast City-PDX Portland

34h 31m3 stops Edinburgh Turnhouse Toronto Pearson Intl Vancouver Intl

$994Multiple Airlines

Tue, Aug 25 - Fri, Aug 28

1:12 pm - 2:15 pmPDX Portland-BHD Belfast City

17h 03m2 stops Chicago O'Hare Intl London Heathrow

6:30 am - 3:50 pmBHD Belfast City-PDX Portland

17h 20m1 stop London Heathrow

$1,019American Airlines

Fri, Jan 29 - Sun, Feb 7

1:12 pm - 2:15 pmPDX Portland-BHD Belfast City

17h 03m2 stops Chicago O'Hare Intl London Heathrow

6:30 am - 3:50 pmBHD Belfast City-PDX Portland

17h 20m1 stop London Heathrow

$1,020American Airlines

Fri, Jan 29 - Sun, Feb 7

1:12 pm - 5:15 pmPDX Portland-BHD Belfast City

20h 03m2 stops Chicago O'Hare Intl London Heathrow

12:10 pm - 12:10 amBHD Belfast City-PDX Portland

20h 00m2 stops London Heathrow Seattle/Tacoma Intl

$1,029Multiple Airlines

Fri, Jan 29 - Sun, Feb 7

1:12 pm - 5:15 pmPDX Portland-BHD Belfast City

20h 03m2 stops Chicago O'Hare Intl London Heathrow

12:10 pm - 12:10 amBHD Belfast City-PDX Portland

20h 00m2 stops London Heathrow Seattle/Tacoma Intl

$1,030Multiple Airlines

Fri, Jan 29 - Sun, Feb 7

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British Airways flights from Portland to Northern Ireland

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

British Airways

Nov 15

PDX5:45 pmPortland

16h 55m

1 stop

BHD6:40 pmBelfast City

Nov 18

BHD9:15 amBelfast City

14h 35m

1 stop

PDX3:50 pmPortland

$908

British Airways

Nov 15

PDX5:45 pmPortland

16h 55m

1 stop

BHD6:40 pmBelfast City

Nov 18

BHD6:35 amBelfast City

17h 15m

1 stop

PDX3:50 pmPortland

$909

British Airways

Jan 31

PDX5:45 pmPortland

15h 05m

1 stop

BHD4:50 pmBelfast City

Feb 2

BHD4:55 pmBelfast City

30h 55m

1 stop

PDX3:50 pmPortland

$917

American Airlines flights from Portland to Northern Ireland

Our best American Airlines deals on Portland to Northern Ireland flight tickets

American Airlines

Jan 29

PDX1:12 pmPortland

17h 03m

2 stops

BHD2:15 pmBelfast City

Feb 7

BHD6:30 amBelfast City

17h 20m

1 stop

PDX3:50 pmPortland

$1,019

American Airlines

Jan 29

PDX1:12 pmPortland

17h 03m

2 stops

BHD2:15 pmBelfast City

Feb 7

BHD6:30 amBelfast City

17h 20m

1 stop

PDX3:50 pmPortland

$1,020

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandBelfast

PDX Portland - BHD Belfast City

PDXBHD

Portland

Sun 11/15

5:45 pm-6:40 pm

1 stop16h 55m

Belfast City

Wed 11/18

9:15 am-3:50 pm

1 stop14h 35m

$908

PortlandBelfast

PDX Portland - BHD Belfast City

PDXBHD

Portland

Sun 11/15

5:45 pm-6:40 pm

1 stop16h 55m

Belfast City

Wed 11/18

6:35 am-3:50 pm

1 stop17h 15m

$909

PortlandBelfast

PDX Portland - BHD Belfast City

PDXBHD

Portland

Sun 1/31

5:45 pm-4:50 pm

1 stop15h 05m

Belfast City

Tue 2/2

4:55 pm-3:50 pm

1 stop30h 55m

$917

PortlandBelfast

PDX Portland - BHD Belfast City

PDXBHD

Portland

Sat 1/23

1:12 pm-4:45 pm

2 stops19h 33m

Belfast City

Sat 1/30

6:00 pm-3:50 pm

1 stop29h 50m

$991

Quickest round-trip

PortlandBelfast

PDX Portland - BHD Belfast City

PDXBHD

Portland

Fri 1/29

5:45 pm-2:15 pm

1 stop12h 30m

Belfast City

Sun 2/7

6:30 am-3:50 pm

1 stop17h 20m

$993

PortlandBelfast

PDX Portland - BHD Belfast City

PDXBHD

Portland

Tue 8/25

3:30 pm-6:00 pm

3 stops18h 30m

Belfast City

Fri 8/28

7:00 am-9:31 am

3 stops34h 31m

$994

PortlandBelfast

PDX Portland - BHD Belfast City

PDXBHD

Portland

Fri 1/29

1:12 pm-2:15 pm

2 stops17h 03m

Belfast City

Sun 2/7

6:30 am-3:50 pm

1 stop17h 20m

$1,019

PortlandBelfast

PDX Portland - BHD Belfast City

PDXBHD

Portland

Fri 1/29

1:12 pm-2:15 pm

2 stops17h 03m

Belfast City

Sun 2/7

6:30 am-3:50 pm

1 stop17h 20m

$1,020

PortlandBelfast

PDX Portland - BHD Belfast City

PDXBHD

Portland

Fri 1/29

1:12 pm-5:15 pm

2 stops20h 03m

Belfast City

Sun 2/7

12:10 pm-12:10 am

2 stops20h 00m

$1,029

PortlandBelfast

PDX Portland - BHD Belfast City

PDXBHD

Portland

Fri 1/29

1:12 pm-5:15 pm

2 stops20h 03m

Belfast City

Sun 2/7

12:10 pm-12:10 am

2 stops20h 00m

$1,030

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

Can stopping save me money on Portland to Northern Ireland flights?

You could potentially save up to 55% on your flight if you consider stops on a Portland to Northern Ireland flight.

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

Fastest flight time	12h 30m
Direct flights	None

The fastest flight from Portland to Northern Ireland takes 12h 30m

There are no direct flights from Portland to Northern Ireland. There are no popular flight routes from Portland to Northern Ireland.

Search flight deals

Frequently asked questions about flying 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 August 2026, there is 1 operator 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
British Airways	PriceFrom $776	Free Cancellation	Rating 6.7 8,153 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.