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Cheap flights from Portland to Northern Ireland from £492

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/10. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — BFS
31 Mar — 7 Apr1
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 26 March 2025.

Round-trip from

£666

One-way from

£618

Popular in

June

Cheapest in

December

Average price

£509
British Airways
  • British Airways
  • 7/4-13/4
  • 3 total stops
  • 46h 57m total
  • Portland to Northern Ireland
Search Deals
American Airlines
  • American Airlines
  • 26/5
  • 1 total stop
  • 16h 10m total
  • Portland to Northern Ireland
Search Deals
Highest demand for flights based on searches. 28% potential increase in price (£207 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease (£37 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2025
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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 26 March 2025.

Wed 1/1011:53PDX - BHD
2 stops19h 42mBritish Airways
Wed 15/1011:30BHD - PDX
1 stop14h 05mBritish Airways
Deal found 24/3£492
Wed 1/1019:25PDX - BHD
1 stop15h 15mAmerican Airlines
Wed 15/1006:50BHD - PDX
1 stop18h 45mAmerican Airlines
Deal found 24/3£567
Mon 7/413:15PDX - BHD
1 stop19h 40mKLM
Sun 13/417:25BHD - PDX
1 stop25h 55mKLM
Deal found 25/3£683
Fri 9/515:20PDX - BFS
2 stops20h 45mMultiple Airlines
Fri 16/506:05BFS - PDX
3 stops42h 40mMultiple Airlines
Deal found 25/3£795

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 26 March 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 7/4

19:25-15:40

1 stop12h 15m

Belfast City

Sun 13/4

20:05-22:47

2 stops34h 42m

£666

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Mon 7/4

13:15-16:55

1 stop19h 40m

Belfast City

Sun 13/4

17:25-11:20

1 stop25h 55m

£683

PortlandBelfast

PDX - BFS

PDXBFS

Portland

Fri 9/5

15:20-20:05

2 stops20h 45m

Belfast Intl

Fri 16/5

06:05-16:45

3 stops42h 40m

£795

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Mon 26/5

19:25-19:35

1 stop16h 10m

£618

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Mon 26/5

19:25-09:50

3 stops30h 25m

£1,558

Flights are sorted by cheapest return flights first.

Deals found on 25/3

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

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 26 March 2025.
See what other customers who have flown with KLM, American Airlines and Aer Lingus from Portland to Northern Ireland have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,319 reviews
Check prices

Boarding

7.8

Comfort

7.7

Food

7.3

Overall

7.8

Crew

8.4

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
KLM
7.8
Good
1,319 reviews
KLM
7.8
Good
1,319 reviews
Check prices

Boarding

7.8

Comfort

7.7

Food

7.3

Overall

7.8

Crew

8.4

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
American Airlines
7.2
Good
10,000 reviews
KLM
7.8
Good
1,319 reviews
Check prices

Boarding

7.8

Comfort

7.7

Food

7.3

Overall

7.8

Crew

8.4

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
Aer Lingus
7.0
Good
1,062 reviews
KLM
7.8
Good
1,319 reviews
Check prices

Boarding

7.8

Comfort

7.7

Food

7.3

Overall

7.8

Crew

8.4

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
British Airways
6.6
Okay
6,712 reviews
KLM
7.8
Good
1,319 reviews
Check prices

Boarding

7.8

Comfort

7.7

Food

7.3

Overall

7.8

Crew

8.4

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.

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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