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Cheap flights from Portland to Belfast from £393

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 15/5. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — BHD
11 Jan — 18 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Portland to Belfast

Enter your travel dates to find the best prices.

Best flights from Portland to Belfast
Discover carefully curated flight deals from Portland to Belfast that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 12 December 2025.

Wed 11/217:45PDX - BHD
1 stop12h 30mBritish Airways
Sun 15/220:25BHD - PDX
1 stop27h 30mBritish Airways
Deal found 9/12£466
Tue 17/307:05PDX - BHD
2 stops26h 45mDelta
Tue 31/317:30BHD - PDX
1 stop25h 40mDelta
Deal found 10/12£503
Tue 17/305:40PDX - BHD
2 stops28h 05mBritish Airways
Tue 31/309:35BHD - PDX
2 stops21h 55mBritish Airways
Deal found 10/12£504
Fri 30/110:33PDX - BHD
2 stops22h 42mBritish Airways
Tue 3/206:35BHD - PDX
2 stops19h 24mBritish Airways
Deal found 9/12£626

Find flight deals from Portland to Belfast

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) to Belfast (BF1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 12 December 2025.

Round-trip from

£466

One-way from

£393
British Airways
  • British Airways
  • 11/2-15/2
  • 2 total stops
  • 40h 00m total
  • Portland to Belfast
Search Deals
American Airlines
  • American Airlines
  • 15/5
  • 2 total stops
  • 19h 21m total
  • Portland to Belfast
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Portland to Belfast 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 12 December 2025.
Use the filters below to find and compare flights from Portland to Belfast that are best for you.

Fly from

Portland

Fly to

Belfast

Route

Depart

Return

Price

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Wed 11/2

17:45-14:15

1 stop12h 30m

Belfast City

Sun 15/2

20:25-15:55

1 stop27h 30m

£466

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Tue 17/3

07:05-16:50

2 stops26h 45m

Belfast City

Tue 31/3

17:30-11:10

1 stop25h 40m

£503

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Tue 17/3

05:40-16:45

2 stops28h 05m

Belfast City

Tue 31/3

09:35-23:30

2 stops21h 55m

£504

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Fri 30/1

10:33-17:15

2 stops22h 42m

Belfast City

Tue 3/2

06:35-17:59

2 stops19h 24m

£626

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Fri 15/5

12:09-15:30

2 stops19h 21m

£393

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Fri 15/5

13:05-16:55

1 stop19h 50m

£394

PortlandBelfast

PDX - BFS

PDXBFS

Portland

Fri 15/5

07:23-21:50

3 stops30h 27m

£414

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Fri 15/5

17:30-20:30

3 stops43h 00m

£447

Flights are sorted by cheapest return flights first.

Deals found on 11/12

Best time to book a flight from Portland to Belfast

Have a flexible travel schedule? Discover the best time to fly to Belfast 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 Belfast
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 Belfast. 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 Belfast?

    Portland (PDX), located 6.0 mi from the city center, is the airport you fly out of when you book flights from Portland to Belfast. 0 airlines have flights from Portland to Belfast on a regular basis. Booking flights from Portland to Belfast should not be difficult; the airport handles an average of 0 outbound flights to Belfast per day.

  • How long is the flight from Portland to Belfast?

    A quick flight from Portland to Belfast can take about 12h 30m. British Airways provides one of the quickest options available for as low as £466. Portland and Belfast are separated by a distance of 4585 mi. This flight may include one or multiple stops.

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

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

  • How can I find direct flights from Portland to Belfast?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to Belfast.

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

    Yes. Cheapflights offers flight deals from Portland to Belfast 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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Alternative routes for Portland to Belfast

See prices for flight routes from nearby airports that may be better suited for you.
Portland to Belfast Intl flights
Portland to Belfast City flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Portland to Belfast?

Cheapflights helps you search for flights from Portland to Belfast 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 Belfast?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Belfast from Portland.

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

Certainly. Search results for flights to Belfast 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 Belfast become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Belfast from Portland today and book when prices fit your budget.

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