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Cheap flights from London to Porto from $121

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 9/10. Fares are subject to change and may not be available on all flights or dates of travel.
LON — OPO
18 Jun — 25 Jun1
1 adult

Cheap flight deals from London to Porto

Discover tips and strategies to find the most affordable flight options for your journey from London (LON) to Porto (OPO). 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 13 June 2025.

Round-trip from

$181

One-way from

$121

Popular in

August

Cheapest in

January

Average price

$312

Good one-way deal

$105 or less
Ryanair
  • Ryanair
  • 27/11-30/11
  • Nonstop
  • 4h 50m total
  • London to Porto
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British Airways
  • British Airways
  • 9/10
  • Nonstop
  • 2h 40m total
  • London to Porto
Search Deals
Highest demand for flights based on searches. 25% potential increase in price ($157 potential increase over avg. return price).
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Cheapest flight prices on average. 5% potential price decrease ($25 potential savings vs. average return price).
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Average for round-trip flights in June 2025
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Price to beat on a one-way flight from London (LON) to Porto.
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Find flight deals from London to Porto

Cheapest flights from London to Porto
Explore the most affordable flight options available from London to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 June 2025.

Thu 27/1113:15STN - OPO
Nonstop2h 25mRyanair
Sun 30/1110:00OPO - STN
Nonstop2h 25mRyanair
Deal found 11/6$181
Wed 8/1016:20LGW - OPO
Nonstop2h 30measyJet
Sat 11/1006:55OPO - LGW
Nonstop2h 25measyJet
Deal found 11/6$189
Sun 23/1113:15LTN - OPO
Nonstop2h 25measyJet
Tue 25/1106:20OPO - LTN
1 stop15h 15measyJet
Deal found 10/6$200
Sat 22/1116:50LGW - OPO
Nonstop2h 25mBritish Airways
Tue 25/1117:30OPO - LGW
Nonstop2h 20mBritish Airways
Deal found 11/6$206
Tue 2/1206:05LGW - OPO
1 stop10h 00mMultiple Airlines
Sat 6/1220:05OPO - LGW
1 stop12h 35mMultiple Airlines
Deal found 12/6$209
Sat 30/806:25STN - OPO
Nonstop2h 25mMultiple Airlines
Sat 13/920:05OPO - STN
Nonstop2h 25mMultiple Airlines
Deal found 11/6$209
Wed 2/718:25LTN - OPO
1 stop12h 25mMultiple Airlines
Wed 23/709:20OPO - LTN
Nonstop2h 25mMultiple Airlines
Deal found 11/6$264
Wed 2/721:05LGW - OPO
1 stop10h 55mVueling
Wed 23/722:00OPO - LGW
1 stop10h 30mVueling
Deal found 12/6$273
Tue 21/1010:00LGW - OPO
1 stop9h 20mAir Europa
Sun 16/1120:10OPO - LGW
1 stop12h 50mAir Europa
Deal found 11/6$312
Tue 2/1210:45LHR - OPO
1 stop9h 15mIberia
Sat 6/1220:40OPO - LHR
1 stop11h 45mIberia
Deal found 12/6$333
Wed 2/720:50LHR - OPO
1 stop11h 10mVueling
Wed 23/722:00OPO - LHR
1 stop11h 10mVueling
Deal found 11/6$338
Thu 6/1115:55LGW - OPO
1 stop6h 05mTAP AIR PORTUGAL
Sun 9/1106:00OPO - LGW
Nonstop2h 20mTAP AIR PORTUGAL
Deal found 11/6$339

Cheapflights Fare Finder

Customise your flight search to find flights from London to Porto 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 647,157 searches. Data last updated 13 June 2025.
Use the filters below to find and compare flights from London to Porto that are best for you.

Fly from

London

Fly to

Porto

Route

Depart

Return

Price

LondonPorto

STN - OPO

STNOPO

London Stansted

Thu 27/11

13:15-15:40

Nonstop2h 25m

Porto

Sun 30/11

10:00-12:25

Nonstop2h 25m

$181

LondonPorto

LGW - OPO

LGWOPO

London Gatwick

Wed 8/10

16:20-18:50

Nonstop2h 30m

Porto

Sat 11/10

06:55-09:20

Nonstop2h 25m

$189

LondonPorto

LTN - OPO

LTNOPO

London Luton

Sun 23/11

13:15-15:40

Nonstop2h 25m

Porto

Tue 25/11

06:20-21:35

1 stop15h 15m

$200

LondonPorto

LGW - OPO

LGWOPO

London Gatwick

Sat 22/11

16:50-19:15

Nonstop2h 25m

Porto

Tue 25/11

17:30-19:50

Nonstop2h 20m

$206

LondonPorto

LGW - OPO

LGWOPO

London Gatwick

Tue 2/12

06:05-16:05

1 stop10h 00m

Porto

Sat 6/12

20:05-08:40

1 stop12h 35m

$209

LondonPorto

STN - OPO

STNOPO

London Stansted

Sat 30/8

06:25-08:50

Nonstop2h 25m

Porto

Sat 13/9

20:05-22:30

Nonstop2h 25m

$209

LondonPorto

LTN - OPO

LTNOPO

London Luton

Wed 2/7

18:25-06:50

1 stop12h 25m

Porto

Wed 23/7

09:20-11:45

Nonstop2h 25m

$264

LondonPorto

LGW - OPO

LGWOPO

London Gatwick

Wed 2/7

21:05-08:00

1 stop10h 55m

Porto

Wed 23/7

22:00-08:30

1 stop10h 30m

$273

LondonPorto

LGW - OPO

LGWOPO

London Gatwick

Tue 21/10

10:00-19:20

1 stop9h 20m

Porto

Sun 16/11

20:10-09:00

1 stop12h 50m

$312

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Tue 2/12

10:45-20:00

1 stop9h 15m

Porto

Sat 6/12

20:40-08:25

1 stop11h 45m

$333

Flights are sorted by cheapest return flights first.

Deals found on 11/6

Showing 1-10 of 57 results
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Best time to book a flight from London to Porto

Have a flexible travel schedule? Discover the best time to fly to Porto from London 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 London to Porto

How far ahead should I book a flight from London to Porto?

Use this chart to determine the optimal time to book a return flight from London to Porto. Price data was last updated on 9 June 2025.

The price you pay for your flight from London to Porto may vary depending on when you book. For the best chance of a lower fare, look to book 32 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest time of day to fly from LON to OPO?

Find hourly flight availability from London to Porto. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 13 June 2025.

It’s optimal to fly from London to Porto in the morning. By choosing this option you can save up to 7% on the cost of your flight, compared to a flight at midday.

Rainfall in Porto by month

Plan your trip to Porto by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Porto ranges from 18.0 - 195.0 inches per month. December is typically the wettest month, when rainfall can reach 195.0 mm. July is typically the driest time to visit Porto when rainfall is around 18.0 mm.

Temperature in Porto by month

Plan your trip to Porto by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Porto, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 20.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 9.0 C).

Reviews of airlines servicing Porto

Get insights into the airlines that provide service to Porto. 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 Porto. Reviews last updated 13 June 2025.
Read through reviews of airlines operating flights from London to Porto, such as KLM, SWISS and Brussels Airlines. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,358 reviews
Check prices

Entertainment

7.1

Crew

8.4

Overall

7.8

Comfort

7.7

Boarding

7.8

Food

7.2

Reviews

1 / 20
8.0
Excellent

Allan,June 2025

YYZ - AMS

I always enjoy flying KLM. Service is attentive, friendly and professional. The seat, when fully reclined is a little hard; some kind of mattress or topper would be helpful here. The dinner was really not very good …. “Meatless meatballs” tasted quite peculiar. Breakfast which consisted of an egg white omelette in flour tortilla was also rather tasteless.
KLM
7.8
Good
1,358 reviews
KLM
7.8
Good
1,358 reviews
Check prices

Entertainment

7.1

Crew

8.4

Overall

7.8

Comfort

7.7

Boarding

7.8

Food

7.2

Reviews

1 / 20
8.0
Excellent

Allan,June 2025

YYZ - AMS

I always enjoy flying KLM. Service is attentive, friendly and professional. The seat, when fully reclined is a little hard; some kind of mattress or topper would be helpful here. The dinner was really not very good …. “Meatless meatballs” tasted quite peculiar. Breakfast which consisted of an egg white omelette in flour tortilla was also rather tasteless.
SWISS
7.5
Good
1,624 reviews
KLM
7.8
Good
1,358 reviews
Check prices

Entertainment

7.1

Crew

8.4

Overall

7.8

Comfort

7.7

Boarding

7.8

Food

7.2

Reviews

1 / 20
8.0
Excellent

Allan,June 2025

YYZ - AMS

I always enjoy flying KLM. Service is attentive, friendly and professional. The seat, when fully reclined is a little hard; some kind of mattress or topper would be helpful here. The dinner was really not very good …. “Meatless meatballs” tasted quite peculiar. Breakfast which consisted of an egg white omelette in flour tortilla was also rather tasteless.
Brussels Airlines
7.4
Good
355 reviews
KLM
7.8
Good
1,358 reviews
Check prices

Entertainment

7.1

Crew

8.4

Overall

7.8

Comfort

7.7

Boarding

7.8

Food

7.2

Reviews

1 / 20
8.0
Excellent

Allan,June 2025

YYZ - AMS

I always enjoy flying KLM. Service is attentive, friendly and professional. The seat, when fully reclined is a little hard; some kind of mattress or topper would be helpful here. The dinner was really not very good …. “Meatless meatballs” tasted quite peculiar. Breakfast which consisted of an egg white omelette in flour tortilla was also rather tasteless.
Scandinavian Airlines
7.3
Good
1,387 reviews
KLM
7.8
Good
1,358 reviews
Check prices

Entertainment

7.1

Crew

8.4

Overall

7.8

Comfort

7.7

Boarding

7.8

Food

7.2

Reviews

1 / 20
8.0
Excellent

Allan,June 2025

YYZ - AMS

I always enjoy flying KLM. Service is attentive, friendly and professional. The seat, when fully reclined is a little hard; some kind of mattress or topper would be helpful here. The dinner was really not very good …. “Meatless meatballs” tasted quite peculiar. Breakfast which consisted of an egg white omelette in flour tortilla was also rather tasteless.
Ethiopian Air
7.2
Good
781 reviews
KLM
7.8
Good
1,358 reviews
Check prices

Entertainment

7.1

Crew

8.4

Overall

7.8

Comfort

7.7

Boarding

7.8

Food

7.2

Reviews

1 / 20
8.0
Excellent

Allan,June 2025

YYZ - AMS

I always enjoy flying KLM. Service is attentive, friendly and professional. The seat, when fully reclined is a little hard; some kind of mattress or topper would be helpful here. The dinner was really not very good …. “Meatless meatballs” tasted quite peculiar. Breakfast which consisted of an egg white omelette in flour tortilla was also rather tasteless.

Related info for your journey

Find useful and relevant information for your journey from London to Porto. 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 into for flights to Porto from London?

    For a flight from London to Porto, you will be flying into Porto. Porto (OPO) is just 10.9 km from the centre vof the city. Porto is the only Porto airport and it handles 5 inbound flights from London per day. 1 airline has flights to Porto from London on a regular basis.

  • What are the cheapest airlines flying from London to Porto round-trip?

    Cheapflights users have booked flights from London to Porto round-trip from $181. Other airlines that can offer you cheap pricing are easyJet, from $189, and British Airways, from $206. Ryanair is 37% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from London to Porto one-way?

    To fly one-way, consider booking your trip with British Airways, which is currently one of the cheapest options available, starting at $121. easyJet flights start at $124 while deals on Ryanair start at $126 one-way.

  • What are the most popular routes from London to Porto?

    The most popular route from London to Porto is London Stansted - Porto. You may also consider London City - Porto or London Luton - Porto.

  • Can I find deals for flights from London to Porto that include hotel bookings?

    Yes. In addition to deals on London to Porto flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from London to Porto?

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

  • Can I find deals for business class flights from London to Porto?

    Yes. Cheapflights offers flight deals from London to Porto by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Alternative routes for London to Porto

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Heathrow to Lisbon flights

Top airline flying from London to Porto

Discover the top airline that operate flights from London to Porto. 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 647,157 searches. Data last updated 13 June 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$563Average$624FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

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How does Cheapflights help users find flights from London to Porto?

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Can Cheapflights find flights from London to Porto with no change fees?

Need flexible booking options for your flight to Porto from London? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from London to Porto become cheaper?

Yes, Cheapflights offers price alerts on London to Porto flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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