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Cheap flights from London Heathrow Airport to Porto from C$ 145

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 10/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — OPO
30 Mar — 6 Apr1
1 adult

Cheap 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 25 March 2025.

Round-trip from

C$ 327

One-way from

C$ 145

Popular in

August

Cheapest in

November

Average price

C$ 315
TAP AIR PORTUGAL
  • TAP AIR PORTUGAL
  • 18/5-22/5
  • 2 total stops
  • 13h 55m total
  • London to Porto
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Iberia
  • Iberia
  • 10/9
  • 1 total stop
  • 12h 50m total
  • London to Porto
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Highest demand for flights based on searches. 16% potential increase in price (C$ 102 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease (C$ 18 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Find flight deals from Heathrow to Porto

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 25 March 2025.

Sat 27/97:10 p.m.LHR - OPO
1 stop12h 25mIberia
Tue 30/98:35 p.m.OPO - LHR
1 stop11h 50mIberia
Deal found 24/3C$ 289
Wed 1/106:00 a.m.LHR - OPO
1 stop8h 05mTAP AIR PORTUGAL
Sat 4/103:45 p.m.OPO - LHR
1 stop7h 10mTAP AIR PORTUGAL
Deal found 24/3C$ 322
Wed 21/56:30 a.m.LHR - OPO
1 stop16h 20mLufthansa
Thu 29/56:15 a.m.OPO - LHR
1 stop16h 25mLufthansa
Deal found 23/3C$ 341
Mon 26/56:40 p.m.LHR - OPO
1 stop13h 15mSWISS
Tue 3/68:40 a.m.OPO - LHR
1 stop10h 40mSWISS
Deal found 24/3C$ 347
Tue 27/511:45 a.m.LHR - OPO
1 stop6h 10mKLM
Fri 30/58:25 p.m.OPO - LHR
1 stop11h 15mKLM
Deal found 24/3C$ 367
Tue 1/44:25 p.m.LHR - OPO
1 stop7h 00mMultiple Airlines
Sat 5/44:50 p.m.OPO - LHR
1 stop4h 45mMultiple Airlines
Deal found 24/3C$ 368
Fri 9/57:45 a.m.LHR - OPO
1 stop8h 15mBrussels Airlines
Mon 12/54:50 p.m.OPO - LHR
1 stop4h 45mBrussels Airlines
Deal found 24/3C$ 377
Mon 16/610:25 a.m.LHR - OPO
1 stop26h 15mAustrian Airlines
Tue 24/61:30 p.m.OPO - LHR
1 stop8h 10mAustrian Airlines
Deal found 24/3C$ 420
Sat 25/104:40 p.m.LHR - OPO
1 stop16h 00mBritish Airways
Wed 29/108:40 p.m.OPO - LHR
1 stop12h 35mBritish Airways
Deal found 24/3C$ 423

Cheapflights Fare Finder

Customize 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 629,999 searches. Data last updated 25 March 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 18/5

8:00 a.m.-3:00 p.m.

1 stop7h 00m

Porto

Thu 22/5

4:00 p.m.-10:55 p.m.

1 stop6h 55m

C$ 327

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Wed 21/5

6:30 a.m.-10:50 p.m.

1 stop16h 20m

Porto

Thu 29/5

6:15 a.m.-10:40 p.m.

1 stop16h 25m

C$ 341

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Mon 26/5

6:40 p.m.-7:55 a.m.

1 stop13h 15m

Porto

Tue 3/6

8:40 a.m.-7:20 p.m.

1 stop10h 40m

C$ 347

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Tue 27/5

11:45 a.m.-5:55 p.m.

1 stop6h 10m

Porto

Fri 30/5

8:25 p.m.-7:40 a.m.

1 stop11h 15m

C$ 367

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Tue 6/5

4:25 p.m.-11:20 p.m.

1 stop6h 55m

Porto

Mon 12/5

4:50 p.m.-9:35 p.m.

1 stop4h 45m

C$ 368

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Fri 9/5

7:45 a.m.-4:00 p.m.

1 stop8h 15m

Porto

Mon 12/5

4:50 p.m.-9:35 p.m.

1 stop4h 45m

C$ 377

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Mon 16/6

10:25 a.m.-12:40 p.m.

1 stop26h 15m

Porto

Tue 24/6

1:30 p.m.-9:40 p.m.

1 stop8h 10m

C$ 420

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Wed 10/9

6:45 p.m.-7:35 a.m.

1 stop12h 50m

C$ 145

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Wed 11/6

11:45 a.m.-7:15 p.m.

1 stop7h 30m

C$ 183

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Sat 23/8

8:05 p.m.-7:55 a.m.

1 stop11h 50m

C$ 193

Flights are sorted by cheapest round-trip flights first.

Deals found on 24/3

Showing 1-10 of 15 results
1
2

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 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.

Cheapflights Insights

Everything you need to know about your flight from London Heathrow Airport to Porto

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 round-trip flight from Heathrow to Porto. Price data was last updated on 21 March 2025.

The price you pay for your flight from London Heathrow Airport to Porto may vary depending on when you book. For the best chance of a lower fare, look to book 43 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from London Heathrow Airport to Porto?

Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Porto (average of C$ 483). Flying from London Heathrow Airport to Porto in July is currently the most expensive (average of C$ 793). 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 25 March 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from London Heathrow Airport to Porto as you normally would.

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 mm 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 25 March 2025.
See what other customers who have flown with KLM, Austrian Airlines and SWISS from London to Porto have to say. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,318 reviews
Check prices

Boarding

7.8

Comfort

7.7

Crew

8.4

Overall

7.8

Entertainment

7.1

Food

7.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
KLM
7.8
Good
1,318 reviews
KLM
7.8
Good
1,318 reviews
Check prices

Boarding

7.8

Comfort

7.7

Crew

8.4

Overall

7.8

Entertainment

7.1

Food

7.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
Austrian Airlines
7.5
Good
769 reviews
KLM
7.8
Good
1,318 reviews
Check prices

Boarding

7.8

Comfort

7.7

Crew

8.4

Overall

7.8

Entertainment

7.1

Food

7.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
SWISS
7.5
Good
1,569 reviews
KLM
7.8
Good
1,318 reviews
Check prices

Boarding

7.8

Comfort

7.7

Crew

8.4

Overall

7.8

Entertainment

7.1

Food

7.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
Air France
7.4
Good
1,423 reviews
KLM
7.8
Good
1,318 reviews
Check prices

Boarding

7.8

Comfort

7.7

Crew

8.4

Overall

7.8

Entertainment

7.1

Food

7.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
Scandinavian Airlines
7.3
Good
1,325 reviews
KLM
7.8
Good
1,318 reviews
Check prices

Boarding

7.8

Comfort

7.7

Crew

8.4

Overall

7.8

Entertainment

7.1

Food

7.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.

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?

    Located just 10.9 km from the city centre, Porto is the airport most travellers will use when flying to Porto from London Heathrow. Booking flights from London Heathrow to Porto (OPO) should be relatively easy as there are 0 daily inbound flights from London Heathrow from 0 different airlines.

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

    Flying on TAP AIR PORTUGAL is currently your cheapest option to Porto, with prices starting at C$ 327. Additional round-trip tickets that might be worth considering are offered by Lufthansa and SWISS, with the lowest prices starting at C$ 341 and C$ 347, respectively. TAP AIR PORTUGAL is priced at 11% lower than the current average price of a flight leaving 3 months from now.

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

    To fly one-way, consider booking your trip with Iberia, which is currently one of the cheapest options available, starting at C$ 145. KLM flights start at C$ 183 while deals on SWISS start at C$ 193 one-way.

  • 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 vacation 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, January is the cheapest month in which you can book a flight from London Heathrow Airport to Porto (average of C$ 483). Flying from London Heathrow Airport to Porto in July is currently the most expensive (average of C$ 793). 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 London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Aveiro
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Alternative routes for Heathrow to Porto

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Not ready to book yet? You can track prices for flights from Heathrow to Porto on Cheapflights with our Price Alert feature and get notified when better prices are available.

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