Cheap flights from Portugal to Belfast Intl Airport from £52
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 18/1. Fares are subject to change and may not be available on all flights or dates of travel.
Find flight deals from Portugal to Belfast Intl
Cheapest flights from Portugal to Belfast IntlExplore the most affordable flight options available from Portugal to Belfast Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 24 October 2025.
Explore the most affordable flight options available from Portugal to Belfast Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 24 October 2025.
Cheap flight deals from Portugal to Belfast Intl
Keep the following information in mind while searching for Portugal to Belfast Intl flight deals. Data was last updated 24 October 2025.
Cheapflights Fare Finder
Use the filters below to find and compare flights from Portugal to Belfast Intl Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
LisbonBelfast
LIS - BFS
LISBFS
Lisbon Humberto Delgado
Tue 2/12
20:15-08:20
1 stop12h 05m
Belfast Intl
Wed 10/12
21:00-10:10
1 stop13h 10m
LisbonBelfast
LIS - BFS
LISBFS
Lisbon Humberto Delgado
Tue 9/12
20:15-08:20
1 stop12h 05m
Belfast Intl
Wed 10/12
21:00-10:10
1 stop13h 10m
PortoBelfast
OPO - BFS
OPOBFS
Porto
Fri 12/12
18:50-08:25
1 stop13h 35m
Belfast Intl
Sun 14/12
23:05-09:15
1 stop10h 10m
PortoBelfast
OPO - BFS
OPOBFS
Porto
Sat 6/12
13:40-18:45
1 stop5h 05m
Belfast Intl
Sat 13/12
06:00-18:55
1 stop12h 55m
LisbonBelfast
LIS - BFS
LISBFS
Lisbon Humberto Delgado
Thu 4/12
18:55-08:20
1 stop13h 25m
Belfast Intl
Wed 10/12
08:50-18:00
1 stop9h 10m
PortoBelfast
OPO - BFS
OPOBFS
Porto
Thu 6/11
06:30-17:30
1 stop11h 00m
Belfast Intl
Mon 10/11
10:50-22:50
1 stop12h 00m
LisbonBelfast
LIS - BFS
LISBFS
Lisbon Humberto Delgado
Fri 5/12
11:15-07:45
1 stop20h 30m
Belfast Intl
Mon 8/12
21:00-10:25
1 stop13h 25m
LisbonBelfast
LIS - BFS
LISBFS
Lisbon Humberto Delgado
Sat 29/11
15:30-22:00
1 stop6h 30m
Belfast Intl
Sun 30/11
07:10-16:40
1 stop9h 30m
LisbonBelfast
LIS - BFS
LISBFS
Lisbon Humberto Delgado
Fri 5/12
17:50-07:45
1 stop13h 55m
Belfast Intl
Fri 12/12
08:45-23:40
1 stop14h 55m
LisbonBelfast
LIS - BFS
LISBFS
Lisbon Humberto Delgado
Sun 7/12
06:55-07:25
1 stop24h 30m
Belfast Intl
Sun 14/12
16:45-21:05
1 stop28h 20m
Best time to book a flight from Portugal to Belfast Intl
Have a flexible travel schedule? Discover the best time to fly to Belfast Intl from Portugal with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Portugal to Belfast Intl Airport
What is the cheapest month to book a flight from Portugal to Belfast Intl Airport?
Currently, February is the cheapest month in which you can book a flight from Portugal to Belfast Intl Airport (average of £32). Flying from Portugal to Belfast Intl Airport in August is currently the most expensive (average of £320). 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.
What is the cheapest time of day to fly from PT to BFS?
Find hourly flight availability from Portugal 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 24 October 2025.
When flying from Portugal to Belfast Intl Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 52% versus a flight at midday.
Related info for your journey
Find useful and relevant information for your journey from Portugal to Belfast Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Travelling to a place near Belfast Intl Airport?
Book flights to Belfast Intl Airport if you plan to visit one of these locationsBrowse thousands of different options on Cheapflights for your next trip
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Alternative routes for Portugal to Belfast Intl
See prices for flight routes from nearby airports that may be better suited for you.
Fly with Cheapflights
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How does Cheapflights help users find flights from Portugal to Belfast Intl?
Cheapflights makes it easy to find Portugal to Belfast Intl flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.
Why should you use Cheapflights to find cheap flight tickets from Portugal to Belfast Intl?
It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Portugal to Belfast Intl.
Can Cheapflights find flights from Portugal to Belfast Intl with no change fees?
Cheapflights does show flights with no change fees to all users. To see these options for flights from Portugal to Belfast Intl, users can toggle the no change fees filter when performing a flight search.
Can Cheapflights notify me if prices for flights from Portugal to Belfast Intl become cheaper?
Not ready to book yet? You can track prices for flights from Portugal to Belfast Intl on Cheapflights with our Price Alert feature and get notified when better prices are available.