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$630+ Cheap flights from Portland (PDX) to Northern Ireland

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/19. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — BFS
Dec 6 — Dec 131
Sat 12/6
Sat 12/13
1 adult, Economy
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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 November 6, 2025.

Round-trip from

$630
(Finnair)
From Portland to Northern Ireland
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 November 6, 2025.

This Delta deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/311:35 amPDX - BHD
2 stops25h 25mDelta
Wed 12/106:30 amBHD - PDX
1 stop12h 55mDelta
Deal found 11/5$636
This KLM deal was found by Cheapflights users on 11/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/410:05 amPDX - BHD
2 stops22h 45mKLM
Mon 12/156:30 amBHD - PDX
1 stop12h 55mKLM
Deal found 11/4$637
This British Airways deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/35:45 pmPDX - BHD
1 stop29h 45mBritish Airways
Wed 12/106:35 amBHD - PDX
1 stop17h 20mBritish Airways
Deal found 11/5$871
This Mytrip deal was found by Cheapflights users on 11/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/49:50 amPDX - BHD
3 stops27h 05mMultiple Airlines
Mon 12/158:00 amBHD - PDX
2 stops17h 00mMultiple Airlines
Deal found 11/4$1,525

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated November 6, 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 1/19

5:45 pm-2:15 pm

1 stop12h 30m

Belfast City

Thu 1/29

11:05 am-11:32 pm

2 stops20h 27m

$630

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Mon 1/19

12:35 pm-4:05 pm

2 stops19h 30m

Belfast City

Thu 1/29

6:35 am-8:22 pm

2 stops21h 47m

$634

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Wed 12/3

11:35 am-9:00 pm

2 stops25h 25m

Belfast City

Wed 12/10

6:30 am-11:25 am

1 stop12h 55m

$636

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Thu 12/4

10:05 am-4:50 pm

2 stops22h 45m

Belfast City

Mon 12/15

6:30 am-11:25 am

1 stop12h 55m

$637

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Wed 3/11

6:45 pm-4:35 pm

1 stop14h 50m

Belfast City

Wed 3/18

9:15 am-4:55 pm

1 stop14h 40m

$658

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Tue 2/24

2:05 pm-6:40 pm

2 stops20h 35m

Belfast City

Thu 3/5

8:00 pm-3:55 pm

1 stop27h 55m

$665

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Thu 1/1

7:14 am-10:20 am

2 stops19h 06m

Belfast City

Wed 2/18

12:25 pm-11:20 pm

2 stops18h 55m

$722

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Fri 4/3

7:30 pm-6:15 pm

1 stop14h 45m

Belfast City

Tue 4/7

9:35 am-5:40 pm

1 stop16h 05m

$740

PortlandBelfast

PDX - BFS

PDXBFS

Portland

Wed 3/11

7:30 am-4:10 pm

3 stops25h 40m

Belfast Intl

Wed 3/18

7:20 am-6:00 pm

2 stops17h 40m

$1,562

PortlandBelfast

PDX - BFS

PDXBFS

Portland

Mon 1/19

9:50 am-9:00 pm

3 stops27h 10m

Belfast Intl

Thu 1/29

7:30 pm-6:30 pm

3 stops31h 00m

$1,791

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/4

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 round-trip 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

What is the cheapest time of day to fly from PDX to NIR?

Find hourly flight availability from Portland to Northern Ireland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 6, 2025.

It’s optimal to fly from Portland to Northern Ireland at noon. By choosing this option you can save up to 38% on the cost of your flight, compared to a flight in the afternoon.

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 November 6, 2025.
Peruse reviews from past customers who have flown with British Airways from Portland to Northern Ireland to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
British Airways
6.7
Okay
7,496 reviews

Overall

6.7

Comfort

6.7

Crew

7.6

Boarding

6.9

Food

6.3

Entertainment

6.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

IAD - LHR

The plane had to load and unload passengers not through a jet way but out on the tarmac at Heathrow. The steps were steep. We weren't expecting to have to carry our luggage up and down stairs.
British Airways
6.7
Okay
7,496 reviews
British Airways
6.7
Okay
7,496 reviews

Overall

6.7

Comfort

6.7

Crew

7.6

Boarding

6.9

Food

6.3

Entertainment

6.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

IAD - LHR

The plane had to load and unload passengers not through a jet way but out on the tarmac at Heathrow. The steps were steep. We weren't expecting to have to carry our luggage up and down stairs.

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?

    Departing from Portland to Northern Ireland will take you 19h 30m. The distance from Portland to Northern Ireland is about 4585 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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 vacation 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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Alternative routes for Portland to Northern Ireland

See prices for flight routes from nearby airports that may be better suited for you.
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Portland to Leeds flights
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Boise to Cardiff flights
Medford to Manchester flights
Eugene to Gatwick flights
Portland to Sumburgh/Shetland flights
Portland to Southend flights
Medford to Glasgow Intl flights
Boise to Birmingham flights
Redmond to Southampton flights

Top airline flying from Portland to Northern Ireland

Discover the top airline that operate flights from Portland to Northern Ireland. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 6, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$659Average$832FlexibilityNo cancel feeOn-time70%

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