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Belfast Intl

$273+ 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 4/6. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — BFS
Feb 25 — Mar 41
Wed 2/25
Wed 3/4
1 adult, Economy
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Cheap 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 January 26, 2026.

This Mytrip deal was found by Cheapflights users on 1/24. 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.
Tue 3/103:45 pm
PDX
-
BFS
2 stops17h 15m
Multiple Airlines
Tue 3/174:30 pm
BFS
-
PDX
3 stops32h 30m
Multiple Airlines
Deal found 1/24$979
This Kiwi.com deal was found by Cheapflights users on 1/25. 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 3/123:45 pm
PDX
-
BFS
2 stops23h 35m
Multiple Airlines
Thu 3/195:55 pm
BFS
-
PDX
1 stop25h 30m
Multiple Airlines
Deal found 1/25$2,768

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 January 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$979
(Mytrip)

One-way from

$273
(Trip.com)
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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From Portland to Belfast Intl
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One-way flight from Portland to Belfast Intl
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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 January 26, 2026.
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

Tue 3/10

3:45 pm-4:00 pm

2 stops17h 15m

Belfast Intl

Tue 3/17

4:30 pm-6:00 pm

3 stops32h 30m

$979

PortlandBelfast

PDX - BFS

PDXBFS

Portland

Thu 3/12

3:45 pm-10:20 pm

2 stops23h 35m

Belfast Intl

Thu 3/19

5:55 pm-12:25 pm

1 stop25h 30m

$2,768

PortlandBelfast

PDX - BFS

PDXBFS

Portland

Mon 4/6

3:30 pm-8:40 pm

2 stops21h 10m

$273

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/24

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 January.
ProviderPrice AccuracyTrust Score*
OvagoPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Portland-Belfast Intl Airport flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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.

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 January 26, 2026.
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
7,700 reviews

Comfort

6.8

Boarding

6.9

Overall

6.7

Entertainment

6.4

Crew

7.6

Food

6.4

Reviews

1 / 20
8.0
Excellent

Lakshmi,Dec 2025

SFO - LHR

I had a great time on the flight with good entertainment and food. The staff was awesome. The only thing was there was a delay in boarding and takeoff from London. However, I was pleasantly surprised when the airline sent an apology for the few later landing in Mumbai. They did not have WiFi on board on the leg from London to Mumbai but that was okay for me. On the first leg from SF to London, a couple of seats ahead of me had issues with their display so they could not watch anything on their screens although the stewardess gas be them an option to use the WiFi on their devices. This did not affect me, however, so that was cool. I would recommend British Airways. This was my first time flying with them and I had a lovely flight.
British Airways
6.7
Okay
7,700 reviews
British Airways
6.7
Okay
7,700 reviews

Comfort

6.8

Boarding

6.9

Overall

6.7

Entertainment

6.4

Crew

7.6

Food

6.4

Reviews

1 / 20
8.0
Excellent

Lakshmi,Dec 2025

SFO - LHR

I had a great time on the flight with good entertainment and food. The staff was awesome. The only thing was there was a delay in boarding and takeoff from London. However, I was pleasantly surprised when the airline sent an apology for the few later landing in Mumbai. They did not have WiFi on board on the leg from London to Mumbai but that was okay for me. On the first leg from SF to London, a couple of seats ahead of me had issues with their display so they could not watch anything on their screens although the stewardess gas be them an option to use the WiFi on their devices. This did not affect me, however, so that was cool. I would recommend British Airways. This was my first time flying with them and I had a lovely flight.

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 ($647), 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 January 26, 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$647Average$985FlexibilityNo cancel feeOn-time70%

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