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Belfast Intl

$422+ 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 8/15. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — BFS
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
1 adult, Economy
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Cheap 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 July 29, 2025.

Round-trip from

$1,636
(Mytrip)

One-way from

$422
(Kiwi.com)
From Portland to Belfast Intl
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One-way flight from Portland to Belfast Intl
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Find flight deals from Portland to Belfast Intl

Cheapest flights from Portland to Belfast Intl
Explore the most affordable flight options available from Portland to Belfast Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

This Mytrip deal was found by Cheapflights users on 7/27. 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.
Wed 9/103:20 pmPDX - BFS
2 stops19h 45mMultiple Airlines
Wed 9/173:05 pmBFS - PDX
3 stops34h 30mMultiple Airlines
Deal found 7/27$1,636

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 July 29, 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

Wed 9/10

3:20 pm-7:05 pm

2 stops19h 45m

Belfast Intl

Wed 9/17

3:05 pm-5:35 pm

3 stops34h 30m

$1,636

PortlandBelfast

PDX - BFS

PDXBFS

Portland

Fri 8/15

5:50 pm-7:45 am

3 stops53h 55m

$422

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

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 July 29, 2025.

It’s optimal to fly from Portland to Belfast Intl Airport at noon. By choosing this option you can save up to 35% on the cost of your flight, compared to a flight in the morning.

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. 2 airlines 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.

  • 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.

  • What is the cheapest month to book a flight from Portland to Belfast Intl Airport?

    Currently, February is the cheapest month in which you can book a flight from Portland to Belfast Intl Airport (average of $657). Flying from Portland to Belfast Intl Airport in June is currently the most expensive (average of $1,189). 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.

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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 2 airlines flying from Portland to Belfast Intl

Discover the top 2 airlines 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 July 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$638Average$870FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$658Average$928FlexibilityNo cancel feeOn-time70%

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