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Cheap flights from Portugal to London Heathrow Airport from £36

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/4. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — LHR
26 Feb — 5 Mar1
1 adult

Cheap flight deals from Portugal to Heathrow

Keep the following information in mind while searching for Portugal to Heathrow flight deals. Data was last updated 21 February 2025.

Round-trip from

£36

Popular in

August

Cheapest in

January

Average price

£58

Good round-trip deal

£82 or less

Good one-way deal

£44 or less
TAP AIR PORTUGAL
  • TAP AIR PORTUGAL
  • 9/4-24/4
  • 2 total stops
  • 22h 05m total
  • Portugal to London
Search Deals
Highest demand for flights based on searches. 25% potential increase in price (£21 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease (£5 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2025
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Price to beat on a round-trip flight from Portugal to London Heathrow.
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Price to beat on a one-way flight from Portugal to London Heathrow.
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Find flight deals from Portugal to Heathrow

Cheapest flights from Portugal to Heathrow
Explore the most affordable flight options available from Portugal to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 February 2025.

Tue 1/416:10LIS - LHR
Nonstop2h 40mTAP AIR PORTUGAL
Thu 24/406:00LHR - LIS
Nonstop2h 40mTAP AIR PORTUGAL
Deal found 20/2£98
Wed 19/306:05FAO - LHR
1 stop15h 30mTAP AIR PORTUGAL
Sun 13/418:45LHR - FAO
1 stop5h 05mTAP AIR PORTUGAL
Deal found 20/2£100
Wed 12/308:55LIS - LHR
1 stop5h 30mVueling
Mon 17/315:15LHR - LIS
1 stop17h 00mVueling
Deal found 21/2£103
Fri 5/1212:55LIS - LHR
Nonstop2h 50mBritish Airways
Tue 9/1206:55LHR - LIS
Nonstop2h 55mBritish Airways
Deal found 20/2£106
Tue 1/422:00OPO - LHR
1 stop11h 10mVueling
Mon 7/420:50LHR - OPO
1 stop24h 30mVueling
Deal found 21/2£128
Tue 11/309:45LIS - LHR
1 stop28h 40mMultiple Airlines
Mon 17/315:15LHR - LIS
1 stop17h 00mMultiple Airlines
Deal found 20/2£135
Sat 22/321:55OPO - LHR
1 stop11h 15mMultiple Airlines
Mon 31/320:50LHR - OPO
1 stop11h 10mMultiple Airlines
Deal found 21/2£135
Tue 1/411:00OPO - LHR
1 stop6h 45mTAP AIR PORTUGAL
Mon 14/419:50LHR - OPO
1 stop12h 00mTAP AIR PORTUGAL
Deal found 20/2£140
Sat 5/418:45FAO - LHR
Nonstop2h 45mBritish Airways
Fri 25/416:10LHR - FAO
Nonstop2h 50mBritish Airways
Deal found 20/2£147
Thu 3/406:05FAO - LHR
1 stop6h 40mMultiple Airlines
Tue 22/407:25LHR - FAO
Nonstop2h 55mMultiple Airlines
Deal found 20/2£147
Tue 1/410:45PDL - LHR
1 stop10h 15mTAP AIR PORTUGAL
Tue 22/411:20LHR - PDL
1 stop13h 25mTAP AIR PORTUGAL
Deal found 20/2£149
Fri 28/315:05LIS - LHR
1 stop6h 20mSWISS
Mon 31/306:00LHR - LIS
1 stop5h 45mSWISS
Deal found 20/2£158

Find flights from Portugal to Heathrow within your budget

Customise your flight search to find flights from Portugal to Heathrow 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 21 February 2025.

Fly from

Portugal

Fly to

Heathrow

Route

Depart

Return

Price

LisbonLondon

LIS - LHR

LISLHR

Lisbon Humberto Delgado

Tue 1/4

16:10-18:50

Nonstop2h 40m

London Heathrow

Thu 24/4

06:00-08:40

Nonstop2h 40m

£98

FaroLondon

FAO - LHR

FAOLHR

Faro

Wed 19/3

06:05-21:35

1 stop15h 30m

London Heathrow

Sun 13/4

18:45-23:50

1 stop5h 05m

£100

LisbonLondon

LIS - LHR

LISLHR

Lisbon Humberto Delgado

Wed 12/3

08:55-14:25

1 stop5h 30m

London Heathrow

Mon 17/3

20:50-15:20

2 stops18h 30m

£105

PortoLondon

OPO - LHR

OPOLHR

Porto

Tue 1/4

22:00-09:10

1 stop11h 10m

London Heathrow

Mon 7/4

20:50-21:20

1 stop24h 30m

£128

LisbonLondon

LIS - LHR

LISLHR

Lisbon Humberto Delgado

Wed 12/3

08:55-14:25

1 stop5h 30m

London Heathrow

Mon 17/3

06:00-08:40

Nonstop2h 40m

£133

PortoLondon

OPO - LHR

OPOLHR

Porto

Sat 22/3

21:55-09:10

1 stop11h 15m

London Heathrow

Mon 31/3

20:50-08:00

1 stop11h 10m

£135

PortoLondon

OPO - LHR

OPOLHR

Porto

Tue 1/4

11:00-17:45

1 stop6h 45m

London Heathrow

Mon 14/4

19:50-07:50

1 stop12h 00m

£140

FaroLondon

FAO - LHR

FAOLHR

Faro

Sat 5/4

18:45-21:30

Nonstop2h 45m

London Heathrow

Fri 25/4

16:10-19:00

Nonstop2h 50m

£147

FaroLondon

FAO - LHR

FAOLHR

Faro

Thu 3/4

06:05-12:45

1 stop6h 40m

London Heathrow

Tue 22/4

07:25-10:20

Nonstop2h 55m

£147

LisbonLondon

LIS - LHR

LISLHR

Lisbon Humberto Delgado

Tue 4/3

10:40-13:35

Nonstop2h 55m

London Heathrow

Tue 25/3

19:10-21:55

Nonstop2h 45m

£149

Flights are sorted by cheapest return flights first.

Deals found on 19/2

Showing 1-10 of 60 results
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Best time to book a flight from Portugal to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow 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.

Travel insights for flights from Portugal to Heathrow

Get recent, data-driven insights about flights from Portugal to Heathrow including ideal travel times, pricing trends, and more.

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

Currently, January is the cheapest month in which you can book a flight from Portugal to London Heathrow Airport (average of £112). Flying from Portugal to London Heathrow Airport in August is currently the most expensive (average of £163). 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 LHR?

Find hourly flight availability from Portugal to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 21 February 2025.

A simple way to save on the total cost of your ticket is to fly from Portugal to London Heathrow Airport in the evening. If you’re flexible enough to do this you can expect to save up to 54% on your trip compared to booking a flight at midday.

What is the cheapest day to fly from Portugal to London Heathrow Airport?

Use this chart to determine the cheapest time to fly return from Portugal to Heathrow. Price data was last updated on 16 February 2025.

Travellers seeking maximum savings on their Portugal to London Heathrow Airport flight should consider departing on Friday at midday when fares are most often at their lowest. Thursday at midday flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Portugal to London Heathrow Airport

Explore weekly flight availability from Portugal to Heathrow. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 21 February 2025.

The most flights from PT0 to LHR are scheduled on a Thursday (70 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (35 on average).

Rainfall in Heathrow by month

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

In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

Temperature in Heathrow by month

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

If weather is an important factor for your trip to London Heathrow Airport, 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 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated 21 February 2025.
To help decide which airline to fly from Portugal to London, see what other customers have to say about Emirates, Aegean Airlines and KLM. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Emirates
8.1
Very Good
3,276 reviews
Check prices

Crew

8.3

Overall

8.1

Boarding

8.1

Entertainment

8.2

Food

7.9

Comfort

8.0

Reviews

1 / 20

10.0
Excellent

Steven,Feb 2025

GLA - DXB

Although I was in economy it made no difference where the staff were concerned they were attentive and pleasant throughout the flight maybe one day I'll get the chance to see if there's a difference in business or 1st class service but in truth for the way I was treated I can only see the menu being an upgrade as the staff don't need upgrading and are indeed the biggest asset on a long journey a credit to the company.

Emirates
8.1
Very Good
3,276 reviews
Emirates
8.1
Very Good
3,276 reviews
Check prices

Crew

8.3

Overall

8.1

Boarding

8.1

Entertainment

8.2

Food

7.9

Comfort

8.0

Reviews

1 / 20

10.0
Excellent

Steven,Feb 2025

GLA - DXB

Although I was in economy it made no difference where the staff were concerned they were attentive and pleasant throughout the flight maybe one day I'll get the chance to see if there's a difference in business or 1st class service but in truth for the way I was treated I can only see the menu being an upgrade as the staff don't need upgrading and are indeed the biggest asset on a long journey a credit to the company.

Aegean Airlines
8.1
Very Good
733 reviews
Emirates
8.1
Very Good
3,276 reviews
Check prices

Crew

8.3

Overall

8.1

Boarding

8.1

Entertainment

8.2

Food

7.9

Comfort

8.0

Reviews

1 / 20

10.0
Excellent

Steven,Feb 2025

GLA - DXB

Although I was in economy it made no difference where the staff were concerned they were attentive and pleasant throughout the flight maybe one day I'll get the chance to see if there's a difference in business or 1st class service but in truth for the way I was treated I can only see the menu being an upgrade as the staff don't need upgrading and are indeed the biggest asset on a long journey a credit to the company.

KLM
7.8
Good
1,333 reviews
Emirates
8.1
Very Good
3,276 reviews
Check prices

Crew

8.3

Overall

8.1

Boarding

8.1

Entertainment

8.2

Food

7.9

Comfort

8.0

Reviews

1 / 20

10.0
Excellent

Steven,Feb 2025

GLA - DXB

Although I was in economy it made no difference where the staff were concerned they were attentive and pleasant throughout the flight maybe one day I'll get the chance to see if there's a difference in business or 1st class service but in truth for the way I was treated I can only see the menu being an upgrade as the staff don't need upgrading and are indeed the biggest asset on a long journey a credit to the company.

LOT
7.6
Good
1,080 reviews
Emirates
8.1
Very Good
3,276 reviews
Check prices

Crew

8.3

Overall

8.1

Boarding

8.1

Entertainment

8.2

Food

7.9

Comfort

8.0

Reviews

1 / 20

10.0
Excellent

Steven,Feb 2025

GLA - DXB

Although I was in economy it made no difference where the staff were concerned they were attentive and pleasant throughout the flight maybe one day I'll get the chance to see if there's a difference in business or 1st class service but in truth for the way I was treated I can only see the menu being an upgrade as the staff don't need upgrading and are indeed the biggest asset on a long journey a credit to the company.

Finnair
7.6
Good
1,273 reviews
Emirates
8.1
Very Good
3,276 reviews
Check prices

Crew

8.3

Overall

8.1

Boarding

8.1

Entertainment

8.2

Food

7.9

Comfort

8.0

Reviews

1 / 20

10.0
Excellent

Steven,Feb 2025

GLA - DXB

Although I was in economy it made no difference where the staff were concerned they were attentive and pleasant throughout the flight maybe one day I'll get the chance to see if there's a difference in business or 1st class service but in truth for the way I was treated I can only see the menu being an upgrade as the staff don't need upgrading and are indeed the biggest asset on a long journey a credit to the company.

Related info for your journey

Find useful and relevant information for your journey from Portugal to Heathrow. 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 London Heathrow Airport one-way?

    For one-way options, check prices for Vueling. According to our data, you can fly for as low as £40. Users have also found prices from £61 and £66 on British Airways and TAP AIR PORTUGAL, respectively.

  • What are the most popular routes from Portugal to London Heathrow Airport?

    The most popular route from Portugal to London Heathrow Airport is Lisbon Humberto Delgado - London Heathrow. You may also consider Porto - London Heathrow or Faro - London Heathrow.

  • What are the most reliable airlines from Portugal to London Heathrow Airport?

    No one likes to see their flight delayed. When booking a flight from Portugal to London Heathrow Airport consider choosing JetBlue (75%), LATAM Airlines (74%) or Cathay Pacific (73%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Portugal to London Heathrow Airport?

    On average you can expect to pay £266 for a flight from Portugal to London Heathrow Airport. The cheapest flight overall is £51 while the most popular route, (Lisbon Humberto Delgado - London Heathrow) is currently priced at £35.

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

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

  • How can I find direct flights from Portugal to Heathrow?

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

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

    Yes. Cheapflights offers flight deals from Portugal to Heathrow 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 London Heathrow Airport?

    Currently, January is the cheapest month in which you can book a flight from Portugal to London Heathrow Airport (average of £112). Flying from Portugal to London Heathrow Airport in August is currently the most expensive (average of £163). 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 Portugal?

Book flights to Portugal if you plan to visit one of these locations
Deal
Hounslow
Milton Keynes
Croydon
Gatwick
Slough
Luton
Ilford
Hayes
Eastbourne
Swindon
Northampton
Wembley
Southend-on-Sea
Ipswich
Winchester
Maidstone
Crawley
Southall
Watford

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Alternative routes for Portugal to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Portugal to Heathrow

Discover the top 5 airlines that operate flights from Portugal to Heathrow. 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 21 February 2025.
AirlineCheapestAverageFlexibilityOn-time
Wizz AirCheapest£39Average£114FlexibilityNo cancel feeOn-timeN/A
Search Wizz Air flights
easyJetCheapest£53Average£173FlexibilityNo cancel feeOn-time86%
Search easyJet flights
TAP AIR PORTUGALCheapest£93Average£201FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
British AirwaysCheapest£118Average£220FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Air FranceCheapest£176Average£204FlexibilityNo cancel feeOn-time77%
Search Air France flights

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 Heathrow?

Cheapflights makes it easy to find Portugal to Heathrow 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 Heathrow?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Heathrow from Portugal.

Can Cheapflights find flights from Portugal to Heathrow with no change fees?

Yes, we can. To see specific flights from Portugal to Heathrow with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Portugal to Heathrow become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Heathrow from Portugal today and book when prices fit your budget.

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