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Cheap flights from Portland to Northern Ireland from £335

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 23/4. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — BFS
26 Feb — 5 Mar1
1 adult

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 21 February 2025.

Round-trip from

£537

One-way from

£335

Popular in

June

Cheapest in

December
Delta
  • Delta
  • 23/4-2/5
  • 3 total stops
  • 33h 50m total
  • Portland to Northern Ireland
Search Deals
British Airways
  • British Airways
  • 23/4
  • 1 total stop
  • 29h 20m total
  • Portland to Northern Ireland
Search Deals
Highest demand for flights based on searches. 28% potential increase in price (£223 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease (£38 potential savings vs. average return price).
Search Deals

Find flight deals from Portland to Northern Ireland

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 21 February 2025.

Wed 23/411:55PDX - BHD
2 stops21h 00mDelta
Fri 2/506:30BHD - PDX
1 stop12h 50mDelta
Deal found 20/2£537
Thu 24/414:00PDX - BHD
2 stops18h 55mKLM
Sun 4/517:25BHD - PDX
1 stop25h 55mKLM
Deal found 20/2£650
Wed 23/419:25PDX - BHD
1 stop17h 20mBritish Airways
Fri 2/506:35BHD - PDX
1 stop19h 00mBritish Airways
Deal found 20/2£684
Thu 24/419:25PDX - BHD
1 stop29h 25mMultiple Airlines
Sat 3/509:35BHD - PDX
1 stop16h 00mMultiple Airlines
Deal found 20/2£894

Find flights from Portland to Northern Ireland within your budget

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 21 February 2025.

Fly from

Portland

Fly to

Northern Ireland

Route

Depart

Return

Price

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Wed 23/4

13:50-16:55

2 stops19h 05m

Belfast City

Sun 4/5

17:25-11:20

1 stop25h 55m

£537

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Fri 25/4

15:10-21:15

2 stops22h 05m

Belfast City

Thu 1/5

17:25-11:20

1 stop25h 55m

£571

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Wed 23/4

19:25-20:45

1 stop17h 20m

Belfast City

Fri 2/5

06:35-17:35

1 stop19h 00m

£684

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Thu 24/4

19:25-08:50

1 stop29h 25m

Belfast City

Sat 3/5

09:35-17:35

1 stop16h 00m

£894

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Wed 23/4

19:25-08:45

1 stop29h 20m

£335

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Mon 21/4

07:23-16:55

2 stops25h 32m

£352

PortlandBelfast

PDX - BFS

PDXBFS

Portland

Wed 23/4

10:35-07:50

3 stops37h 15m

£354

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Wed 23/4

10:35-20:35

3 stops26h 00m

£371

Flights are sorted by cheapest return flights first.

Deals found on 20/2

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.

Travel insights for flights from Portland to Northern Ireland

Get recent, data-driven insights about flights from Portland to Northern Ireland including ideal travel times, pricing trends, and more.

Rainfall in Northern Ireland by month

Plan your trip to Northern Ireland by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Northern Ireland ranges from 50.0 - 90.0 inches per month. October is typically the wettest month, when rainfall can reach 90.0 mm. April is typically the driest time to visit Northern Ireland when rainfall is around 50.0 mm.

Temperature in Northern Ireland by month

Plan your trip to Northern Ireland by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Northern Ireland, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 16.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 5.0 C).

Reviews of airlines servicing Northern Ireland

Get insights into the airlines that provide service to Northern Ireland. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Northern Ireland. Reviews last updated 21 February 2025.
Delta
8.0
Very Good
8,213 reviews
Check prices

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Food

7.3

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very Good
8,213 reviews
Delta
8.0
Very Good
8,213 reviews
Check prices

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Food

7.3

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM
7.8
Good
1,331 reviews
Delta
8.0
Very Good
8,213 reviews
Check prices

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Food

7.3

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

British Airways
6.6
Okay
6,762 reviews
Delta
8.0
Very Good
8,213 reviews
Check prices

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Food

7.3

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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.

  • 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.

  • What is the cheapest month to book a flight from Portland to Northern Ireland?

    Currently, January is the cheapest month in which you can book a flight from Portland to Northern Ireland (average of £67). Flying from Portland to Northern Ireland in July is currently the most expensive (average of £90). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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

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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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