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Cheap flights from Portland to Northern Ireland from £334

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 15/6. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — BFS
7 Mar — 14 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap 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 5 February 2026.

Wed 4/317:45
PDX
-
BHD
1 stop29h 45m
British Airways
Sun 8/306:30
BHD
-
PDX
1 stop17h 25m
British Airways
Deal found 4/2£467
Wed 25/211:48
PDX
-
BHD
2 stops18h 27m
American Airlines
Tue 3/308:45
BHD
-
PDX
2 stops19h 59m
American Airlines
Deal found 4/2£506
Wed 16/912:05
PDX
-
BHD
2 stops17h 30m
British Airways
Fri 25/909:30
BHD
-
PDX
2 stops19h 19m
British Airways
Deal found 4/2£507
Wed 25/213:25
PDX
-
BHD
1 stop19h 25m
Multiple Airlines
Tue 3/317:20
BHD
-
PDX
1 stop26h 05m
Multiple Airlines
Deal found 4/2£511
Sun 3/507:00
PDX
-
BHD
2 stops26h 40m
British Airways
Sat 16/507:05
BHD
-
PDX
2 stops22h 33m
British Airways
Deal found 3/2£526
Fri 10/419:30
PDX
-
BHD
1 stop14h 40m
British Airways
Fri 24/409:30
BHD
-
PDX
1 stop16h 10m
British Airways
Deal found 4/2£560
Sat 4/415:30
PDX
-
BFS
2 stops21h 10m
Multiple Airlines
Fri 17/419:20
BFS
-
PDX
3 stops45h 50m
Multiple Airlines
Deal found 5/2£752
Wed 16/915:30
PDX
-
BFS
2 stops17h 35m
Multiple Airlines
Fri 25/909:40
BFS
-
PDX
2 stops16h 15m
Multiple Airlines
Deal found 4/2£798
Sun 3/510:10
PDX
-
BFS
3 stops26h 45m
Multiple Airlines
Sat 16/520:15
BFS
-
PDX
3 stops29h 45m
Multiple Airlines
Deal found 3/2£867
Thu 11/610:10
PDX
-
BFS
3 stops24h 45m
Multiple Airlines
Fri 26/619:20
BFS
-
PDX
2 stops24h 25m
Multiple Airlines
Deal found 5/2£1,101
Thu 19/315:45
PDX
-
BFS
2 stops18h 50m
Multiple Airlines
Sun 29/307:00
BFS
-
PDX
3 stops43h 00m
Multiple Airlines
Deal found 5/2£2,411
Thu 19/315:45
PDX
-
BFS
2 stops18h 50m
Multiple Airlines
Mon 30/306:40
BFS
-
PDX
2 stops19h 20m
Multiple Airlines
Deal found 5/2£2,763

Find 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 5 February 2026.

Round-trip from

£467

One-way from

£334
British Airways
  • British Airways
  • 4/3-8/3
  • 2 total stops
  • 47h 10m total
  • Portland to Northern Ireland
Search Deals
British Airways
  • British Airways
  • 15/6
  • 2 total stops
  • 19h 17m 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 5 February 2026.
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

Wed 4/3

17:45-07:30

1 stop29h 45m

Belfast City

Sun 8/3

06:30-15:55

1 stop17h 25m

£467

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Wed 25/2

11:48-14:15

2 stops18h 27m

Belfast City

Tue 3/3

08:45-20:44

2 stops19h 59m

£506

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Sun 3/5

07:00-17:40

2 stops26h 40m

Belfast City

Sat 16/5

07:05-21:38

2 stops22h 33m

£526

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Fri 10/4

19:30-18:10

1 stop14h 40m

Belfast City

Fri 24/4

09:30-17:40

1 stop16h 10m

£560

PortlandBelfast

PDX - BFS

PDXBFS

Portland

Sat 4/4

15:30-20:40

2 stops21h 10m

Belfast Intl

Fri 17/4

19:20-09:10

3 stops45h 50m

£752

PortlandBelfast

PDX - BFS

PDXBFS

Portland

Sun 3/5

10:10-20:55

3 stops26h 45m

Belfast Intl

Sat 16/5

20:15-18:00

3 stops29h 45m

£867

PortlandBelfast

PDX - BFS

PDXBFS

Portland

Thu 11/6

10:10-18:55

3 stops24h 45m

Belfast Intl

Fri 26/6

19:20-11:45

2 stops24h 25m

£1,101

PortlandBelfast

PDX - BFS

PDXBFS

Portland

Thu 19/3

15:45-17:35

2 stops18h 50m

Belfast Intl

Sun 29/3

07:00-18:00

3 stops43h 00m

£2,411

PortlandBelfast

PDX - BFS

PDXBFS

Portland

Thu 19/3

15:45-17:35

2 stops18h 50m

Belfast Intl

Mon 30/3

06:40-18:00

2 stops19h 20m

£2,763

PortlandBelfast

PDX - BFS

PDXBFS

Portland

Sat 21/3

15:45-15:25

2 stops16h 40m

Belfast Intl

Sat 28/3

19:50-18:00

3 stops29h 10m

£3,362

Flights are sorted by cheapest return flights first.

Deals found on 3/2

Showing 1-10 of 12 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 British Airways and American Airlines fly from Portland to Northern Ireland in about 18h 27m. The time it takes to get you to your destination can typically vary by up to 11h 18m. 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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