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Cheap flights from Portland to Northern Ireland from £253

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 3/2. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — BFS
7 Dec — 14 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Portland to Northern Ireland

Enter your travel dates to find the best prices.

Cheapest flights from Portland to Northern Ireland
Explore the most affordable flight options available from Portland to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 7 November 2025.

Wed 3/1211:35PDX - BHD
2 stops25h 25mDelta
Wed 10/1206:30BHD - PDX
1 stop12h 55mDelta
Deal found 5/11£486
Thu 4/1210:05PDX - BHD
2 stops22h 45mKLM
Mon 15/1206:30BHD - PDX
1 stop12h 55mKLM
Deal found 4/11£487
Wed 3/1217:45PDX - BHD
1 stop29h 45mBritish Airways
Wed 10/1206:35BHD - PDX
1 stop17h 20mBritish Airways
Deal found 5/11£665
Thu 4/1209:50PDX - BHD
3 stops27h 05mMultiple Airlines
Mon 15/1208:00BHD - PDX
2 stops17h 00mMultiple Airlines
Deal found 4/11£1,165

Cheap flight deals from Portland to Northern Ireland

Keep the following information in mind while searching for Portland to Northern Ireland flight deals. Data was last updated 7 November 2025.

Round-trip from

£482

One-way from

£253
British Airways
  • British Airways
  • 19/1-29/1
  • 3 total stops
  • 37h 17m total
  • Portland to Northern Ireland
Search Deals
3/2
  • 3/2
  • 3 total stops
  • 45h 18m total
  • Portland to Northern Ireland
Search Deals

Cheapflights 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, Cheapflights users made 858,174 searches. Data last updated 7 November 2025.
Use the filters below to find and compare flights from Portland to Northern Ireland that are best for you.

Fly from

Portland

Fly to

Northern Ireland

Route

Depart

Return

Price

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Mon 19/1

12:35-16:05

2 stops19h 30m

Belfast City

Thu 29/1

06:35-20:22

2 stops21h 47m

£484

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Wed 3/12

11:35-21:00

2 stops25h 25m

Belfast City

Wed 10/12

06:30-11:25

1 stop12h 55m

£486

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Thu 4/12

10:05-16:50

2 stops22h 45m

Belfast City

Mon 15/12

06:30-11:25

1 stop12h 55m

£487

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Fri 3/4

19:30-18:15

1 stop14h 45m

Belfast City

Tue 7/4

09:35-17:40

1 stop16h 05m

£565

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Thu 1/1

07:14-10:20

2 stops19h 06m

Belfast City

Wed 18/2

09:15-15:55

1 stop14h 40m

£572

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Fri 3/4

06:04-21:20

2 stops31h 16m

Belfast City

Tue 7/4

06:30-11:20

1 stop12h 50m

£584

PortlandBelfast

PDX - BFS

PDXBFS

Portland

Tue 3/2

17:32-22:50

3 stops45h 18m

£253

PortlandBelfast

PDX - BFS

PDXBFS

Portland

Mon 2/2

13:00-18:50

3 stops45h 50m

£260

PortlandBelfast

PDX - BFS

PDXBFS

Portland

Wed 4/2

10:30-22:50

3 stops28h 20m

£271

PortlandBelfast

PDX - BFS

PDXBFS

Portland

Sun 1/2

10:30-21:55

3 stops27h 25m

£271

Flights are sorted by cheapest return flights first.

Deals found on 6/11

Showing 1-10 of 29 results
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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.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Portland to Northern Ireland
No data available for this route at this time. Please check back soon.

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?

    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.

  • How long is the flight from Portland to Northern Ireland?

    Airlines like American Airlines, Delta, and KLM fly from Portland to Northern Ireland in about 19h 30m. The time it takes to get you to your destination can typically vary by up to 5h 55m. There are 4585 mi between Portland and Northern Ireland. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

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

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

    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.

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

    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.

See more FAQs

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

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.

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

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.

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

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.

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

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.

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