Cheap flights from Portland to Northern Ireland from £250

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 14/10. 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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Cheap return flights

Delta Logo
13:30 - 21:15PDX-BHD
23h 45m2 stops
Delta Logo
06:30 - 11:00BHD-PDX
12h 30m1 stop
£503Delta
Find Deal
Wed, 8 Oct - Sun, 12 Oct
Delta Logo
13:15 - 16:55PDX-BHD
19h 40m1 stop
Delta Logo
06:30 - 11:00BHD-PDX
12h 30m1 stop
£703Delta
Find Deal
Wed, 8 Oct - Sun, 12 Oct
British Airways Logo
07:00 - 11:55PDX-BHD
20h 55m2 stops
British Airways Logo
20:05 - 23:08BHD-PDX
35h 03m2 stops
£718British Airways
Find Deal
Wed, 8 Oct - Sun, 12 Oct
Multiple Airlines Logo
09:50 - 16:45PDX-BFS
23h 55m3 stops
Multiple Airlines Logo
06:30 - 17:00BFS-PDX
18h 30m2 stops
£1,524Multiple Airlines
Find Deal
Fri, 31 Oct - Fri, 7 Nov

Delta flights from Portland to Northern Ireland

Our best Delta deals on Portland to Northern Ireland flight tickets
Delta
8 Oct
PDX13:30Portland
23h 45m
2 stops
BHD21:15Belfast City
12 Oct
BHD06:30Belfast City
12h 30m
1 stop
PDX11:00Portland
Delta
8 Oct
PDX13:15Portland
19h 40m
1 stop
BHD16:55Belfast City
12 Oct
BHD06:30Belfast City
12h 30m
1 stop
PDX11:00Portland

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 18 September 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

Wed 8/10

13:30-21:15

2 stops23h 45m

Belfast City

Sun 12/10

06:30-11:00

1 stop12h 30m

£503

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Wed 8/10

13:15-16:55

1 stop19h 40m

Belfast City

Sun 12/10

06:30-11:00

1 stop12h 30m

£703

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Wed 8/10

07:00-11:55

2 stops20h 55m

Belfast City

Sun 12/10

20:05-23:08

2 stops35h 03m

£718

PortlandBelfast

PDX - BFS

PDXBFS

Portland

Fri 31/10

09:50-16:45

3 stops23h 55m

Belfast Intl

Fri 7/11

06:30-17:00

2 stops18h 30m

£1,524

PortlandBelfast

PDX - BFS

PDXBFS

Portland

Tue 14/10

17:45-07:50

2 stops54h 05m

£250

PortlandBelfast

PDX - BFS

PDXBFS

Portland

Tue 14/10

17:45-23:30

3 stops45h 45m

£291

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

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

Direct flights

None
There are no direct flights from Portland to Northern Ireland. There are no popular flight routes 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 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.

  • How do I get Price Alerts for flights from Portland to Northern Ireland?

    Price Alerts will notify you by email when the price for flights to Northern Ireland from Portland decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.

  • How can I save money on flights from Portland to Northern Ireland with momondo?

    By using tools like our “Price Calendar”, you can see the best days for return flights on your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

  • How does momondo find its flight prices?

    We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

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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1 adult
Sat 18/10
Sat 25/10

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