$414 Cheap Flights from Portland (PDX) to Belfast (BFS)

View $414 flight on Sun, Mar 8, 2026Opens in a new window

Popular airlines from Portland International Airport (PDX) to Belfast International Airport (BFS)

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Find available prices by choosing your travel dates.

Cheap Flights from Portland to Belfast (PDX-BFS)

Prices were available within the past 7 days and start at $414 for one-way flights and $694 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Mon, Dec 1 - Fri, Dec 12
PDX
Portland
BHD
Belfast
$694 Roundtrip, found 3 days ago
$694
Roundtrip
found 3 days ago
Select American Airlines flight, departing Mon, Dec 1 from Portland to Belfast, returning Fri, Dec 12, priced at $694 found 3 days ago
British Airways
Mon, Dec 1 - Fri, Dec 12
PDX
Portland
BHD
Belfast
$696 Roundtrip, found 3 days ago
$696
Roundtrip
found 3 days ago
Select British Airways flight, departing Mon, Dec 1 from Portland to Belfast, returning Fri, Dec 12, priced at $696 found 3 days ago
American Airlines
Mon, Dec 1 - Fri, Dec 12
PDX
Portland
BHD
Belfast
$700 Roundtrip, found 3 days ago
$700
Roundtrip
found 3 days ago
Select American Airlines flight, departing Mon, Dec 1 from Portland to Belfast, returning Fri, Dec 12, priced at $700 found 3 days ago
British Airways
Wed, Aug 13 - Fri, Sep 5
PDX
Portland
BHD
Belfast
$703 Roundtrip, found 14 hours ago
$703
Roundtrip
found 14 hours ago
Select British Airways flight, departing Wed, Aug 13 from Portland to Belfast, returning Fri, Sep 5, priced at $703 found 14 hours ago
British Airways
Wed, Aug 13 - Fri, Sep 5
PDX
Portland
BHD
Belfast
$705 Roundtrip, found 14 hours ago
$705
Roundtrip
found 14 hours ago
Select British Airways flight, departing Wed, Aug 13 from Portland to Belfast, returning Fri, Sep 5, priced at $705 found 14 hours ago
American Airlines
Wed, Oct 15 - Wed, Oct 29
PDX
Portland
BHD
Belfast
$706 Roundtrip, just found
$706
Roundtrip
just found
Select American Airlines flight, departing Wed, Oct 15 from Portland to Belfast, returning Wed, Oct 29, priced at $706 just found
American Airlines
Wed, Oct 15 - Wed, Oct 29
PDX
Portland
BHD
Belfast
$707 Roundtrip, just found
$707
Roundtrip
just found
Select American Airlines flight, departing Wed, Oct 15 from Portland to Belfast, returning Wed, Oct 29, priced at $707 just found
Iberia
Mon, Sep 1 - Mon, Sep 22
PDX
Portland
BHD
Belfast
$723 Roundtrip, found 1 day ago
$723
Roundtrip
found 1 day ago
Select Iberia flight, departing Mon, Sep 1 from Portland to Belfast, returning Mon, Sep 22, priced at $723 found 1 day ago
Virgin Atlantic
Sun, May 11 - Tue, May 20
PDX
Portland
BHD
Belfast
$731 Roundtrip, found 5 days ago
$731
Roundtrip
found 5 days ago
Select Virgin Atlantic flight, departing Sun, May 11 from Portland to Belfast, returning Tue, May 20, priced at $731 found 5 days ago
Delta
Wed, Oct 15 - Wed, Oct 29
PDX
Portland
BHD
Belfast
$733 Roundtrip, just found
$733
Roundtrip
just found
Select Delta flight, departing Wed, Oct 15 from Portland to Belfast, returning Wed, Oct 29, priced at $733 just found

Frequently asked questions

How much does a flight from Portland Intl. Airport (PDX) to Belfast Intl. Airport (BFS) cost?
Discover the latest flight deals from PDX to BFS by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from PDX to BFS?
The cheapest flights from PDX to BFS are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from PDX to BFS?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that’ll take you from PDX to BFS. Sort your results by “Price (lowest to highest)” to snap up a great deal.
How many flights per day from Portland Intl. Airport (PDX) to Belfast Intl. Airport (BFS)?
You’ll have to take a flight with a layover if you’re traveling from Portland Intl. Airport (PDX) to Belfast Intl. Airport (BFS). Direct flights don’t operate daily on this route. However, simply filter your search to include one or two stops to find an option that works for you.
What day of the week has the most flights from PDX to BFS?
You’ll typically find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can change from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Portland Intl. Airport (PDX) to Belfast Intl. Airport (BFS)?
Select a flight from Portland Intl. Airport (PDX) to Belfast Intl. Airport (BFS) that takes off before 3 PM to reduce the risk of cancellations and delays. Later departures have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
Is it cheaper to buy a plane ticket from Portland Intl. Airport (PDX) to Belfast Intl. Airport (BFS) last-minute?
Last-minute fares from PDX to BFS are typically more expensive. To secure the lowest prices, start looking for flights ahead of time. That said, if your travel plans are flexible, it’s possible to land a cheap fare right before your journey.
Is it cheaper to book a PDX to BFS flight and hotel package?
Compared with arranging flights and hotels separately, booking a PDX to BFS flight and hotel package with Expedia could lead to significant savings. What’s more, having everything in one easy place will take the hassle out of travel planning. Just secure your flights and choose from our extensive range of hotels, then personalize your trip with other add-ons like car rentals and activities.
Can I cancel or change the date of my flight from Portland Intl. Airport (PDX) to Belfast Intl. Airport (BFS)?
In most cases, you’re able to cancel or reschedule your PDX to BFS flight. However, there may be additional fees, especially if you booked more than 24 hours ago. Double-check your itinerary for the airline’s fees and rules on flight changes, or if you’d like more details, head to our Customer Service portal.
*Available to One Key members.