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Cheap flights from Portugal to Belfast Intl Airport from £43

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 17/10. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — BFS
23 Jul — 30 Jul1
1 adult

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 18 July 2025.

Round-trip from

£118

One-way from

£43

Popular in

September

Cheapest in

February

Average price

£168

Good round-trip deal

£127 or less

Good one-way deal

£81 or less
Ryanair
  • Ryanair
  • 30/8-6/9
  • Nonstop
  • 5h 00m total
  • Portugal to Belfast
Search Deals
easyJet
  • easyJet
  • 17/10
  • 1 total stop
  • 14h 05m total
  • Portugal to Belfast
Search Deals
Highest demand for flights based on searches. 45% potential increase in price (£70 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 13% potential price decrease (£10 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2025
Search Deals
Price to beat on a round-trip flight from Portugal to Belfast Intl.
Search Deals
Price to beat on a one-way flight from Portugal to Belfast Intl.
Search Deals

Find flight deals from Portugal to Belfast Intl

Cheapest flights from Portugal to Belfast Intl
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 18 July 2025.

Sat 30/813:30OPO - BFS
Nonstop2h 30mRyanair
Sat 6/910:35BFS - OPO
Nonstop2h 30mRyanair
Deal found 16/7£118
Tue 26/821:00OPO - BFS
1 stop14h 50mMultiple Airlines
Sat 30/810:35BFS - OPO
Nonstop2h 30mMultiple Airlines
Deal found 18/7£137
Fri 22/808:35OPO - BFS
1 stop8h 10mRyanair
Mon 1/912:35BFS - OPO
1 stop6h 35mRyanair
Deal found 18/7£173
Thu 4/910:50LIS - BFS
2 stops11h 10mMultiple Airlines
Wed 10/906:00BFS - LIS
1 stop6h 00mMultiple Airlines
Deal found 18/7£176
Thu 4/907:00LIS - BFS
1 stop6h 00measyJet
Wed 10/907:00BFS - LIS
1 stop14h 00measyJet
Deal found 18/7£178
Sat 2/821:00OPO - BFS
1 stop11h 55measyJet
Wed 6/821:00BFS - OPO
1 stop15h 15measyJet
Deal found 16/7£205

Cheapflights Fare Finder

Customise your flight search to find flights from Portugal 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 858,174 searches. Data last updated 18 July 2025.
Use the filters below to find and compare flights from Portugal to Belfast Intl Airport that are best for you.

Fly from

Portugal

Fly to

Belfast Intl

Route

Depart

Return

Price

PortoBelfast

OPO - BFS

OPOBFS

Porto

Sat 30/8

13:30-16:00

Nonstop2h 30m

Belfast Intl

Sat 6/9

10:35-13:05

Nonstop2h 30m

£118

PortoBelfast

OPO - BFS

OPOBFS

Porto

Tue 26/8

21:00-11:50

1 stop14h 50m

Belfast Intl

Sat 30/8

10:35-13:05

Nonstop2h 30m

£137

PortoBelfast

OPO - BFS

OPOBFS

Porto

Fri 22/8

08:35-16:45

1 stop8h 10m

Belfast Intl

Mon 1/9

12:35-19:10

1 stop6h 35m

£173

LisbonBelfast

LIS - BFS

LISBFS

Lisbon Humberto Delgado

Thu 4/9

10:50-22:00

2 stops11h 10m

Belfast Intl

Wed 10/9

06:00-12:00

1 stop6h 00m

£176

LisbonBelfast

LIS - BFS

LISBFS

Lisbon Humberto Delgado

Thu 4/9

07:00-13:00

1 stop6h 00m

Belfast Intl

Wed 10/9

07:00-21:00

1 stop14h 00m

£178

PortoBelfast

OPO - BFS

OPOBFS

Porto

Sat 2/8

21:00-08:55

1 stop11h 55m

Belfast Intl

Wed 6/8

21:00-12:15

1 stop15h 15m

£205

PortoBelfast

OPO - BFS

OPOBFS

Porto

Fri 17/10

09:25-23:30

1 stop14h 05m

£43

PortoBelfast

OPO - BFS

OPOBFS

Porto

Sat 18/10

13:30-16:00

Nonstop2h 30m

£59

PortoBelfast

OPO - BFS

OPOBFS

Porto

Wed 12/11

11:05-21:30

1 stop10h 25m

£67

LisbonBelfast

LIS - BFS

LISBFS

Lisbon Humberto Delgado

Tue 7/10

06:30-18:45

1 stop12h 15m

£68

Flights are sorted by cheapest return flights first.

Deals found on 16/7

Showing 1-10 of 12 results
1
2

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.
Estimated return 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 Portugal to Belfast Intl Airport

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

Currently, January is the cheapest month in which you can book a flight from Portugal to Belfast Intl Airport (average of £67). Flying from Portugal to Belfast Intl Airport in July is currently the most expensive (average of £90). 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 18 July 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 at midday, which can drop the price by up to 68% versus a flight in the afternoon.

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 18 July 2025.
See what other customers who have flown with easyJet, Ryanair, andRyanair from Portugal to Belfast Intl Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
easyJet
6.9
Okay
1,819 reviews
Check prices

Overall

6.9

Comfort

6.7

Boarding

6.7

Food

5.9

Crew

7.6

Entertainment

5.5

Reviews

1 / 20
6.0
Good

Kathleen P,Jun 2025

LGW - GLA

Had to pay £48 because my personal item was 1cm too big! Not happy! First & last time to fly Easy Jet. This small back pack has been used on many domestic & international flights without a problem. I could have easily put it in my luggage as my bag was 5kg under weight. Instead, I was charged £48 even though it didn’t add any extra weight to the flight and it could easily fit under the seat. Hint: Check the “personal item” size carefully!
easyJet
6.9
Okay
1,819 reviews
easyJet
6.9
Okay
1,819 reviews
Check prices

Overall

6.9

Comfort

6.7

Boarding

6.7

Food

5.9

Crew

7.6

Entertainment

5.5

Reviews

1 / 20
6.0
Good

Kathleen P,Jun 2025

LGW - GLA

Had to pay £48 because my personal item was 1cm too big! Not happy! First & last time to fly Easy Jet. This small back pack has been used on many domestic & international flights without a problem. I could have easily put it in my luggage as my bag was 5kg under weight. Instead, I was charged £48 even though it didn’t add any extra weight to the flight and it could easily fit under the seat. Hint: Check the “personal item” size carefully!
Ryanair
6.9
Okay
5,148 reviews
easyJet
6.9
Okay
1,819 reviews
Check prices

Overall

6.9

Comfort

6.7

Boarding

6.7

Food

5.9

Crew

7.6

Entertainment

5.5

Reviews

1 / 20
6.0
Good

Kathleen P,Jun 2025

LGW - GLA

Had to pay £48 because my personal item was 1cm too big! Not happy! First & last time to fly Easy Jet. This small back pack has been used on many domestic & international flights without a problem. I could have easily put it in my luggage as my bag was 5kg under weight. Instead, I was charged £48 even though it didn’t add any extra weight to the flight and it could easily fit under the seat. Hint: Check the “personal item” size carefully!
Ryanair
6.1
Okay
easyJet
6.9
Okay
1,819 reviews
Check prices

Overall

6.9

Comfort

6.7

Boarding

6.7

Food

5.9

Crew

7.6

Entertainment

5.5

Reviews

1 / 20
6.0
Good

Kathleen P,Jun 2025

LGW - GLA

Had to pay £48 because my personal item was 1cm too big! Not happy! First & last time to fly Easy Jet. This small back pack has been used on many domestic & international flights without a problem. I could have easily put it in my luggage as my bag was 5kg under weight. Instead, I was charged £48 even though it didn’t add any extra weight to the flight and it could easily fit under the seat. Hint: Check the “personal item” size carefully!

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.

  • What are the cheapest airlines to fly from Portugal to Belfast Intl Airport one-way?

    The cheapest airline one-way is easyJet, with whom users have recently found tickets for as low as £43. However, be on the lookout for offers from Ryanair and Ryanair, as they are both options that can get you from Portugal to Belfast Intl Airport for a low price.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Portugal 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 Portugal to Belfast Intl Airport?

    Currently, January is the cheapest month in which you can book a flight from Portugal to Belfast Intl Airport (average of £67). Flying from Portugal to Belfast Intl Airport in July is currently the most expensive (average of £90). 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.

See more FAQs

Travelling to a place near Belfast Intl Airport?

Book flights to Belfast Intl Airport if you plan to visit one of these locations
Armagh
Newry
Ballymena
Cookstown
Dungannon

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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.
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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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.

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