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Belfast Intl

$554+ Cheap flights from Portland (PDX) to Belfast Intl (BFS)

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 5/15. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — BFS
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Cheap flight deals from Portland to Belfast Intl

One-way flights from Portland to Belfast Intl
Search for one-way flight options from Portland to Belfast Intl. Find affordable one-way fares based on user searches. Data last updated December 12, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/11. 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.
Fri 5/157:23 amPDX - BFS
3 stops30h 27mMultiple Airlines
Deal found 12/11$554

Find flight deals from Portland to Belfast Intl

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) to Belfast Intl (BFS). 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 December 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars
Provider with most accurate pricing for Portland-Belfast Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Portland-Belfast Intl flights.
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Portland to Belfast Intl 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 December 12, 2025.
Use the filters below to find and compare flights from Portland to Belfast Intl Airport that are best for you.

Fly from

Portland

Fly to

Belfast Intl

Route

Depart

Return

Price

PortlandBelfast

PDX - BFS

PDXBFS

Portland

Fri 5/15

7:23 am-9:50 pm

3 stops30h 27m

$554

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/11

Compare providers for flights from Portland to Belfast Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Portland to Belfast Intl in December.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Portland-Belfast Intl Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Portland-Belfast Intl Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Portland-Belfast Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Portland-Belfast Intl Airport flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Portland-Belfast Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Portland to Belfast Intl

Have a flexible travel schedule? Discover the best time to fly to Belfast Intl 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 Intl Airport

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

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

It’s optimal to fly from Portland to Belfast Intl Airport in the afternoon. By choosing this option you can save up to 49% on the cost of your flight, compared to a flight in the morning.

Reviews of airlines servicing Belfast Intl

Get insights into the airlines that provide service to Belfast Intl. 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 Intl. Reviews last updated December 12, 2025.
Get a feel of what it's like to fly with British Airways from Portland to Belfast Intl Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
British Airways
6.7
Okay
7,571 reviews

Boarding

6.9

Crew

7.6

Comfort

6.7

Entertainment

6.4

Food

6.4

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
7,571 reviews
British Airways
6.7
Okay
7,571 reviews

Boarding

6.9

Crew

7.6

Comfort

6.7

Entertainment

6.4

Food

6.4

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 Intl. 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 Intl?

    Portland (PDX), located 6.0 mi from the city center, is the airport you fly out of when you book flights from Portland to Belfast Intl. 1 airline have flights from Portland to Belfast Intl on a regular basis. Booking flights from Portland to Belfast Intl should not be difficult; the airport handles an average of 0 outbound flights to Belfast Intl per day.

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

    According to our current data, British Airways ($720), offers the cheapest pricing from Portland to Belfast Intl Airport.

  • Can I find deals for flights from Portland to Belfast Intl that include hotel bookings?

    Yes. In addition to deals on Portland to Belfast Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Portland to Belfast Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to Belfast Intl.

  • Can I find deals for business class flights from Portland to Belfast Intl?

    Yes. Cheapflights offers flight deals from Portland to Belfast Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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Alternative routes for Portland to Belfast Intl

See prices for flight routes from nearby airports that may be better suited for you.
Portland to Belfast City flights

Top airline flying from Portland to Belfast Intl

Discover the top airline that operate flights from Portland to Belfast Intl. 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 December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$720Average$985FlexibilityNo cancel feeOn-time70%

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