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$636+ Cheap flights from Portland (PDX) to Belfast

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 4/3. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — BHD
Dec 12 — Dec 191
Fri 12/12
Fri 12/19
1 adult, Economy
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Find flight deals from Portland to Belfast

Cheapest flights from Portland to Belfast
Explore the most affordable flight options available from Portland to Belfast. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 12, 2025.

This Kiwi.com deal was found by Cheapflights users on 11/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2512:39 pmPDX - BFS
2 stops41h 11mMultiple Airlines
Thu 1/15:55 pmBFS - PDX
1 stop25h 30mMultiple Airlines
Deal found 11/10$3,034

Cheap 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 November 12, 2025.

Round-trip from

$636
(British Airways)
From Portland to Belfast
Search Deals

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated November 12, 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

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

$636

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Fri 4/3

5:05 pm-9:20 pm

2 stops20h 15m

Belfast City

Tue 4/7

5:25 pm-11:20 am

1 stop25h 55m

$765

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Fri 4/3

6:04 am-4:55 pm

2 stops26h 51m

Belfast City

Tue 4/7

6:30 am-11:20 am

1 stop12h 50m

$766

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Sun 3/1

5:45 pm-6:40 pm

1 stop16h 55m

Belfast City

Thu 3/5

5:45 pm-3:55 pm

1 stop30h 10m

$780

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Sun 3/1

1:25 pm-4:50 pm

1 stop19h 25m

Belfast City

Thu 3/5

6:30 am-5:35 pm

2 stops19h 05m

$810

PortlandBelfast

PDX - BFS

PDXBFS

Portland

Thu 12/25

12:39 pm-1:50 pm

2 stops41h 11m

Belfast Intl

Thu 1/1

5:55 pm-11:25 am

1 stop25h 30m

$3,034

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/10

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 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 Belfast

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

Find hourly flight availability from Portland to Belfast. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 12, 2025.

It’s optimal to fly from Portland to Belfast 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 Belfast

Get insights into the airlines that provide service to Belfast. 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 Belfast. Reviews last updated November 12, 2025.
Peruse reviews from past customers who have flown with British Airways from Portland to Belfast to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
British Airways
6.7
Okay
7,515 reviews

Boarding

6.9

Crew

7.6

Comfort

6.7

Entertainment

6.4

Food

6.3

Overall

6.7

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
7,515 reviews
British Airways
6.7
Okay
7,515 reviews

Boarding

6.9

Crew

7.6

Comfort

6.7

Entertainment

6.4

Food

6.3

Overall

6.7

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 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?

    For a flight from Portland to Belfast, you will be flying from Portland. Portland (PDX) is just 6.0 mi from the center of the city. Portland is the only Portland airport and it handles 0 outbound flights to Belfast per day. 1 airline has flights to Belfast from Portland on a regular basis.

  • How long is the flight from Portland to Belfast?

    Airlines like British Airways, Delta, and Virgin Atlantic fly from Portland to Belfast in about 14h 45m. The time it takes to get you to your destination can typically vary by up to 12h 06m. The distance between Portland and Belfast is about 4585 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What is the cheapest airline to fly from Portland to Belfast round-trip?

    Flying on British Airways is currently your cheapest option to Belfast, with prices starting at $659.

  • 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 vacation 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

Top airline flying from Portland to Belfast

Discover the top airline that operate flights from Portland to Belfast. 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 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$659Average$832FlexibilityNo cancel feeOn-time70%

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