Cheap flights from London Heathrow Airport to Porto from £56
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 7/1. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — OPO
10 Jan — 17 Jan1
Return
1 adult
Economy
Return
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from London Heathrow to Porto are usually found in January or November, booked 32 days in advance, depart on a Tuesday or Monday and return on a Thursday
Cheap flight deals from Heathrow to Porto
Enter your travel dates to find the best prices.
Cheapest flights from Heathrow to Porto
Explore the most affordable flight options available from Heathrow to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 December 2025.
Wed 10/1208:15LHR - OPO
1 stop8h 45mMultiple Airlines
Sat 13/1220:40OPO - LHR
1 stop11h 45mMultiple Airlines
Deal found 9/12£146
Thu 11/1208:15LHR - OPO
1 stop23h 30mMultiple Airlines
Mon 15/1212:25OPO - LHR
1 stop5h 50mMultiple Airlines
Deal found 9/12£149
Wed 10/1208:15LHR - OPO
1 stop9h 45mTAP AIR PORTUGAL
Wed 14/110:55OPO - LHR
1 stop6h 35mTAP AIR PORTUGAL
Deal found 9/12£155
Wed 10/1208:15LHR - OPO
1 stop8h 45mTAP AIR PORTUGAL
Tue 13/110:05OPO - LHR
1 stop7h 25mTAP AIR PORTUGAL
Deal found 9/12£156
Wed 10/1206:00LHR - OPO
1 stop7h 10mTAP AIR PORTUGAL
Wed 10/1216:05OPO - LHR
1 stop5h 30mTAP AIR PORTUGAL
Deal found 9/12£162
Sun 14/1206:00LHR - OPO
1 stop12h 05mMultiple Airlines
Wed 17/1212:25OPO - LHR
1 stop5h 50mMultiple Airlines
Deal found 8/12£163
Sun 14/1206:00LHR - OPO
1 stop12h 05mMultiple Airlines
Tue 16/1212:25OPO - LHR
1 stop4h 50mMultiple Airlines
Deal found 10/12£164
Sat 13/1219:55LHR - OPO
1 stop13h 55mMultiple Airlines
Mon 15/1212:25OPO - LHR
1 stop5h 50mMultiple Airlines
Deal found 9/12£164
Mon 15/1208:15LHR - OPO
1 stop8h 45mMultiple Airlines
Tue 16/1212:25OPO - LHR
1 stop6h 25mMultiple Airlines
Deal found 8/12£171
Mon 15/1208:15LHR - OPO
1 stop8h 45mMultiple Airlines
Wed 17/1212:25OPO - LHR
1 stop5h 50mMultiple Airlines
Deal found 8/12£176
Mon 15/1218:30LHR - OPO
1 stop18h 35mTAP AIR PORTUGAL
Thu 18/1214:00OPO - LHR
1 stop7h 35mTAP AIR PORTUGAL
Deal found 10/12£177
Mon 15/1218:30LHR - OPO
1 stop13h 30mTAP AIR PORTUGAL
Mon 22/1206:55OPO - LHR
1 stop5h 45mTAP AIR PORTUGAL
Deal found 8/12£178
Best flights from Heathrow to Porto
Discover carefully curated flight deals from Heathrow to Porto that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 11 December 2025.
Sun 1/308:15LHR - OPO
1 stop8h 45mTAP AIR PORTUGAL
Wed 4/312:00OPO - LHR
1 stop9h 35mTAP AIR PORTUGAL
Deal found 9/12£135
Tue 20/108:40LHR - OPO
1 stop6h 45mKLM
Fri 23/105:00OPO - LHR
1 stop8h 50mKLM
Deal found 8/12£149
Fri 6/320:25LHR - OPO
1 stop14h 05mMultiple Airlines
Mon 9/311:25OPO - LHR
1 stop5h 10mMultiple Airlines
Deal found 8/12£153
Tue 20/106:00LHR - OPO
1 stop9h 00mTAP AIR PORTUGAL
Fri 23/112:00OPO - LHR
1 stop6h 55mTAP AIR PORTUGAL
Deal found 10/12£152
Sun 11/108:15LHR - OPO
1 stop5h 45mTAP AIR PORTUGAL
Thu 15/116:00OPO - LHR
1 stop5h 35mTAP AIR PORTUGAL
Deal found 10/12£152
Fri 6/206:30LHR - OPO
1 stop6h 50mKLM
Sun 22/205:00OPO - LHR
1 stop7h 05mKLM
Deal found 10/12£175
Fri 23/113:40LHR - OPO
1 stop5h 20mTAP AIR PORTUGAL
Sun 25/106:55OPO - LHR
1 stop5h 45mTAP AIR PORTUGAL
Deal found 8/12£167
Last-minute flights from Heathrow to Porto
Discover last-minute flight deals from Heathrow to Porto. Data last updated 11 December 2025 and is based on user searches.
Mon 5/106:00LHR - OPO
1 stop11h 00mTAP AIR PORTUGAL
Mon 19/108:30OPO - LHR
1 stop9h 00mTAP AIR PORTUGAL
Deal found 8/12£133
Mon 5/118:30LHR - OPO
1 stop16h 35mTAP AIR PORTUGAL
Mon 12/108:30OPO - LHR
1 stop14h 10mTAP AIR PORTUGAL
Deal found 8/12£136
Tue 6/106:00LHR - OPO
1 stop12h 15mTAP AIR PORTUGAL
Tue 20/114:00OPO - LHR
1 stop7h 35mTAP AIR PORTUGAL
Deal found 9/12£131
Wed 7/106:00LHR - OPO
1 stop12h 00mTAP AIR PORTUGAL
Sat 17/111:00OPO - LHR
1 stop7h 55mTAP AIR PORTUGAL
Deal found 8/12£134
Thu 8/118:50LHR - OPO
1 stop13h 20mMultiple Airlines
Thu 22/108:15OPO - LHR
1 stop6h 10mMultiple Airlines
Deal found 9/12£131
Sat 10/120:50LHR - OPO
1 stop11h 20mVueling
Sat 17/108:45OPO - LHR
1 stop11h 20mVueling
Deal found 9/12£132
Sun 11/106:00LHR - OPO
1 stop8h 00mTAP AIR PORTUGAL
Sun 18/106:55OPO - LHR
1 stop5h 45mTAP AIR PORTUGAL
Deal found 9/12£135
Wed 14/108:15LHR - OPO
1 stop9h 45mTAP AIR PORTUGAL
Wed 21/114:00OPO - LHR
1 stop7h 35mTAP AIR PORTUGAL
Deal found 10/12£110
Thu 15/112:25LHR - OPO
1 stop5h 35mTAP AIR PORTUGAL
Sun 18/106:55OPO - LHR
1 stop5h 45mTAP AIR PORTUGAL
Deal found 10/12£137
Fri 16/112:25LHR - OPO
1 stop6h 35mTAP AIR PORTUGAL
Fri 23/112:00OPO - LHR
1 stop6h 55mTAP AIR PORTUGAL
Deal found 10/12£134
Thu 22/113:40LHR - OPO
1 stop5h 20mTAP AIR PORTUGAL
Thu 29/112:05OPO - LHR
1 stop5h 25mTAP AIR PORTUGAL
Deal found 8/12£130
Sat 24/118:30LHR - OPO
1 stop6h 00mTAP AIR PORTUGAL
Sat 31/112:00OPO - LHR
1 stop6h 55mTAP AIR PORTUGAL
Deal found 9/12£128
One-way flights from Heathrow to Porto
Search for one-way flight options from Heathrow to Porto. Find affordable one-way fares based on user searches. Data last updated 11 December 2025.
Wed 7/115:15LHR - OPO
1 stop20h 30mMultiple Airlines
Deal found 9/12£56
Mon 12/115:30LHR - OPO
1 stop28h 00mVueling
Deal found 8/12£58
Thu 5/315:30LHR - OPO
1 stop4h 45mMultiple Airlines
Deal found 8/12£59
Tue 20/120:50LHR - OPO
1 stop11h 20mVueling
Deal found 8/12£62
Mon 23/320:50LHR - OPO
1 stop11h 20mVueling
Deal found 9/12£63
Thu 15/120:50LHR - OPO
1 stop10h 55mMultiple Airlines
Deal found 8/12£64
Thu 8/118:50LHR - OPO
1 stop14h 45mVueling
Deal found 9/12£65
Sun 25/115:15LHR - OPO
1 stop16h 40mVueling
Deal found 9/12£65
Tue 3/320:50LHR - OPO
1 stop11h 20mVueling
Deal found 9/12£67
Thu 26/209:55LHR - OPO
1 stop7h 40mMultiple Airlines
Deal found 9/12£68
Thu 15/120:50LHR - OPO
1 stop11h 20mVueling
Deal found 8/12£68
Wed 13/509:55LHR - OPO
1 stop6h 15mVueling
Deal found 8/12£69
Find flight deals from Heathrow to Porto
Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) 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 11 December 2025.
Customise your flight search to find flights from Heathrow 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 858,174 searches. Data last updated 11 December 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Porto that are best for you.
Fly from
Heathrow
Fly to
Porto
Route
Depart
Return
Price
LondonPorto
LHR - OPO
LHROPO
London Heathrow
Sun 1/3
08:15-17:00
1 stop8h 45m
Porto
Wed 4/3
12:00-21:35
1 stop9h 35m
£135
LondonPorto
LHR - OPO
LHROPO
London Heathrow
Tue 20/1
08:40-15:25
1 stop6h 45m
Porto
Fri 23/1
05:00-13:50
1 stop8h 50m
£149
LondonPorto
LHR - OPO
LHROPO
London Heathrow
Tue 20/1
06:00-15:00
1 stop9h 00m
Porto
Fri 23/1
12:00-18:55
1 stop6h 55m
£152
LondonPorto
LHR - OPO
LHROPO
London Heathrow
Sun 11/1
08:15-14:00
1 stop5h 45m
Porto
Thu 15/1
16:00-21:35
1 stop5h 35m
£152
LondonPorto
LHR - OPO
LHROPO
London Heathrow
Fri 6/3
20:25-10:30
1 stop14h 05m
Porto
Mon 9/3
11:25-16:35
1 stop5h 10m
£153
LondonPorto
LHR - OPO
LHROPO
London Heathrow
Fri 23/1
13:40-19:00
1 stop5h 20m
Porto
Sun 25/1
06:55-12:40
1 stop5h 45m
£167
LondonPorto
LHR - OPO
LHROPO
London Heathrow
Fri 6/2
06:30-13:20
1 stop6h 50m
Porto
Sun 22/2
05:00-12:05
1 stop7h 05m
£175
LondonPorto
LHR - OPO
LHROPO
London Heathrow
Mon 23/3
20:50-08:10
1 stop11h 20m
£63
LondonPorto
LHR - OPO
LHROPO
London Heathrow
Thu 15/1
20:50-07:45
1 stop10h 55m
£64
LondonPorto
LHR - OPO
LHROPO
London Heathrow
Sun 25/1
15:15-07:55
1 stop16h 40m
£65
Flights are sorted by cheapest return flights first.
Deals found on 9/12
Showing 1-10 of 19 results
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Best time to book a flight from Heathrow to Porto
Have a flexible travel schedule? Discover the best time to fly to Porto from Heathrow 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 Heathrow Airport to Porto
Prices
Delays
More
How far ahead should I book a flight from London Heathrow Airport to Porto?
Use this chart to determine the optimal time to book a return flight from Heathrow to Porto. Price data was last updated on 5 December 2025.
The best time to book flights from London Heathrow Airport to Porto is 32 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from London Heathrow Airport to Porto?
Currently, November is the cheapest month in which you can book a flight from London Heathrow Airport to Porto (average of £77). Flying from London Heathrow Airport to Porto in August is currently the most expensive (average of £165). 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 LHR to OPO?
Find hourly flight availability from Heathrow 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 11 December 2025.
Unlike in the morning, when flights are generally more expensive, you can save up to 15% on flights from London Heathrow Airport to Porto by exploring options for tickets at midday.
What is the cheapest day to fly from London Heathrow Airport to Porto?
Use this chart to determine the cheapest time to fly return from Heathrow to Porto. Price data was last updated on 16 December 2024.
Travellers seeking maximum savings on their London Heathrow Airport to Porto flight should consider departing on Sunday at midday when fares are most often at their lowest. Wednesday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
How much does it cost for a return flight from London Heathrow Airport to Porto?
How often are flights from London to Porto delayed?
About 100% of weekly flights between London and Porto have experienced delays in the past year, with the average delay time being 82 minutes.
What is the most punctual flight time for London to Porto flights?
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Tuesday tends to have the lowest number of delays on this route, whereas Tuesday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on London to Porto flights?
Over the past year, British Airways have had the lowest number of delays on this route, with just 100% of flights being delayed.
What’s the top stopover airport for flights from London Heathrow Airport to Porto?
Share of one-stop return flights from London Heathrow Airport to Porto chosen by Cheapflights users in the past 12 months, using the same stopover each way.
Lisbon (LIS) – chosen by Cheapflights users on 45% of one-stop itineraries from London Heathrow Airport to Porto on Cheapflights.
What’s the cheapest stopover airport for flights from London Heathrow Airport to Porto?
Average return fare for one-stop flights from London Heathrow Airport to Porto, chosen by Cheapflights users in the past 12 months, with the same stopover each way.
Munich (MUC) is the most affordable one-stop option, with an average return flight price of £200.
What’s the fastest stopover option from London Heathrow Airport to Porto?
Shortest average travel time for one-stop one-way flights from London Heathrow Airport to Porto, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.
Flights via Brussels (BRU) have the shortest average one-way travel time for one-stop routes: 5h 32m.
Which airport typically offers the quickest stopover for flights from London Heathrow Airport to Porto?
Average stopover duration for one-stop one-way flights from London Heathrow Airport to Porto, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Zurich (ZRH) offer the fastest connection on this route, with an average stopover time of 1h 13m.
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 11 December 2025.
Get a feel of what it's like to fly with KLM, Brussels Airlines, andTAP AIR PORTUGAL from London Heathrow Airport to Porto by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Not literally sitting in the very last row in the middle
Related info for your journey
Find useful and relevant information for your journey from Heathrow 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 Heathrow?
Most people fly into Porto (OPO) if they book a flight to Porto from London Heathrow. On average, Porto has 0 inbound flights from London Heathrow per day from 10 airlines. Porto is conveniently located just 6.8 mi from Porto’s city center.
How long is the flight from London Heathrow Airport to Porto?
There are many flights that can get you from London Heathrow Airport to Porto in 6h 45m. Fly via TAP AIR PORTUGAL or KLM to get the fastest option. Airlines will cover a distance of 806 mi. Both multi-stop and direct flights can be found to your destination and back.
What are the cheapest airlines flying from London Heathrow Airport to Porto round-trip?
Cheapflights users have booked flights from London Heathrow Airport to Porto round-trip from £37. Other airlines that can offer you cheap pricing are Ryanair, from £64, and British Airways, from £81. Users have found that easyJet is 82% cheaper than the other options available to this destination.
What are the cheapest airlines to fly from London Heathrow Airport to Porto one-way?
The cheapest airline one-way is TAP AIR PORTUGAL, with whom users have recently found tickets for as low as £75. However, be on the lookout for offers from KLM and Iberia, as they are both options that can get you from London Heathrow Airport to Porto for a low price.
Can I find deals for flights from Heathrow to Porto that include hotel bookings?
Yes. In addition to deals on Heathrow to Porto flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Heathrow to Porto?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Porto.
Can I find deals for business class flights from Heathrow to Porto?
Yes. Cheapflights offers flight deals from Heathrow 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.
What is the cheapest month to book a flight from London Heathrow Airport to Porto?
Currently, November is the cheapest month in which you can book a flight from London Heathrow Airport to Porto (average of £77). Flying from London Heathrow Airport to Porto in August is currently the most expensive (average of £165). 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.
Browse through other flights departing from Heathrow. Flights are based on user searches made on Cheapflights and were last updated on 11 December 2025.
Explore flights to Porto departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 11 December 2025.
Discover the top 10 airlines that operate flights from Heathrow 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 858,174 searches. Data last updated 11 December 2025.
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 Heathrow to Porto?
Cheapflights makes it easy to find Heathrow to Porto 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 Heathrow to Porto?
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 Heathrow to Porto.
Can Cheapflights find flights from Heathrow to Porto with no change fees?
Cheapflights does show flights with no change fees to all users. To see these options for flights from Heathrow to Porto, users can toggle the no change fees filter when performing a flight search.
Can Cheapflights notify me if prices for flights from Heathrow to Porto become cheaper?
Yes, Cheapflights offers price alerts on Heathrow 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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