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Cheap flights from Portland to Northern Ireland from £311

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 18/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
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Find the cheapest flights from Portland to Northern Ireland

Cheap return flights

British Airways Logo
23:59 - 09:20PDX-BHD
25h 21m2 stops
British Airways Logo
06:50 - 22:04BHD-PDX
23h 14m2 stops
£558British Airways
Find Deal
Sat, 23 Aug - Sun, 31 Aug
British Airways Logo
23:59 - 09:20PDX-BHD
25h 21m2 stops
British Airways Logo
20:05 - 17:35BHD-PDX
29h 30m1 stop
£634British Airways
Find Deal
Sat, 23 Aug - Sun, 31 Aug
British Airways Logo
07:00 - 10:10PDX-BHD
19h 10m2 stops
British Airways Logo
06:50 - 22:04BHD-PDX
23h 14m2 stops
£691British Airways
Find Deal
Sat, 23 Aug - Sun, 31 Aug
British Airways Logo
19:25 - 19:15PDX-BHD
15h 50m1 stop
British Airways Logo
06:50 - 22:04BHD-PDX
23h 14m2 stops
£744British Airways
Find Deal
Sat, 23 Aug - Sun, 31 Aug
British Airways Logo
19:25 - 09:05PDX-BHD
29h 40m1 stop
British Airways Logo
06:50 - 17:35BHD-PDX
18h 45m1 stop
£745British Airways
Find Deal
Sat, 23 Aug - Sun, 31 Aug
British Airways Logo
19:25 - 09:05PDX-BHD
29h 40m1 stop
British Airways Logo
11:00 - 17:35BHD-PDX
14h 35m1 stop
£806British Airways
Find Deal
Sat, 23 Aug - Sun, 31 Aug

British Airways flights from Portland to Northern Ireland

Our best British Airways deals on Portland to Northern Ireland flight tickets
British Airways
23 Aug
PDX23:59Portland
25h 21m
2 stops
BHD09:20Belfast City
31 Aug
BHD06:50Belfast City
23h 14m
2 stops
PDX22:04Portland
£558
Find similar
British Airways
23 Aug
PDX23:59Portland
25h 21m
2 stops
BHD09:20Belfast City
31 Aug
BHD20:05Belfast City
29h 30m
1 stop
PDX17:35Portland
£634
Find similar
British Airways
23 Aug
PDX07:00Portland
19h 10m
2 stops
BHD10:10Belfast City
31 Aug
BHD06:50Belfast City
23h 14m
2 stops
PDX22:04Portland
£691
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Portland to Northern Ireland that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 279,928 searches. Data last updated 1 August 2025.
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

Sat 23/8

23:59-09:20

2 stops25h 21m

Belfast City

Sun 31/8

06:50-22:04

2 stops23h 14m

£558

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Sat 23/8

23:59-09:20

2 stops25h 21m

Belfast City

Sun 31/8

20:05-17:35

1 stop29h 30m

£634

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Sat 23/8

07:00-10:10

2 stops19h 10m

Belfast City

Sun 31/8

06:50-22:04

2 stops23h 14m

£691

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Sat 23/8

19:25-19:15

1 stop15h 50m

Belfast City

Sun 31/8

06:50-22:04

2 stops23h 14m

£744

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Sat 23/8

19:25-09:05

1 stop29h 40m

Belfast City

Sun 31/8

06:50-17:35

1 stop18h 45m

£745

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Sat 23/8

19:25-09:05

1 stop29h 40m

Belfast City

Sun 31/8

11:00-17:35

1 stop14h 35m

£806

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Thu 18/9

13:08-20:25

2 stops47h 17m

£311

PortlandBelfast

PDX - BFS

PDXBFS

Portland

Thu 18/9

16:46-09:25

3 stops56h 39m

£317

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Sat 23/8

23:59-09:20

2 stops25h 21m

£318

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Thu 18/9

16:46-20:25

3 stops43h 39m

£319

Flights are sorted by cheapest return flights first.

Showing 1-10 of 16 resultsSorted by cheapest first
1
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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 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

£311

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 £311. The best return flight deal from Portland to Northern Ireland found on momondo in the last 72 hours is £558.
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)
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  • 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 old do you have to be to fly from Portland Airport to Northern Ireland?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for 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.

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Portland to Northern Ireland. momondo saves you time and could save you money on your trip.

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

Flights from Portland to Northern Ireland with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Northern Ireland from Portland.

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

Of course. momondo tracks the price of Portland to Northern Ireland flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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