Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from London Heathrow Airport to Portugal from $134

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London Heathrow Airport to Portugal departing on 15/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from London Heathrow Airport to Portugal

Cheap return flights

British Airways Logo
06:55 - 09:50LHR-LIS
2h 55mdirect
British Airways Logo
16:00 - 18:45LIS-LHR
2h 45mdirect
$261British Airways
Find Deal
Wed, 12 Nov - Tue, 18 Nov
British Airways Logo
06:55 - 09:50LHR-LIS
2h 55mdirect
British Airways Logo
12:55 - 15:50LIS-LHR
2h 55mdirect
$263British Airways
Find Deal
Tue, 2 Dec - Thu, 11 Dec
TAP AIR PORTUGAL Logo
19:50 - 22:35LHR-LIS
2h 45mdirect
TAP AIR PORTUGAL Logo
16:10 - 18:50LIS-LHR
2h 40mdirect
$280TAP AIR PORTUGAL
Find Deal
Tue, 14 Oct - Wed, 22 Oct
Logo
18:45 - 21:30LHR-LIS
2h 45mdirect
Logo
22:10 - 09:10LIS-LHR
11h 00m1 stop
$292
Find Deal
Tue, 14 Oct - Wed, 22 Oct
TAP AIR PORTUGAL Logo
06:00 - 10:25LHR-FAO
4h 25m1 stop
TAP AIR PORTUGAL Logo
11:15 - 17:30FAO-LHR
6h 15m1 stop
$297TAP AIR PORTUGAL
Find Deal
Mon, 12 Jan - Fri, 23 Jan
Vueling Logo
15:05 - 08:15LHR-LIS
17h 10m1 stop
Vueling Logo
20:10 - 14:45LIS-LHR
18h 35m1 stop
$309Vueling
Find Deal
Mon, 6 Oct - Mon, 13 Oct
Logo
15:05 - 08:55LHR-LIS
17h 50m1 stop
Logo
06:00 - 14:15LIS-LHR
8h 15m1 stop
$317
Find Deal
Sun, 12 Oct - Thu, 16 Oct
KLM Logo
06:30 - 15:25LHR-OPO
8h 55m1 stop
KLM Logo
09:55 - 16:05OPO-LHR
6h 10m1 stop
$329KLM
Find Deal
Sat, 1 Nov - Tue, 4 Nov
Vueling Logo
15:05 - 08:15LHR-LIS
17h 10m1 stop
Vueling Logo
20:10 - 14:45LIS-LHR
18h 35m1 stop
$332Vueling
Find Deal
Fri, 10 Oct - Mon, 13 Oct
KLM Logo
06:30 - 15:25LHR-OPO
8h 55m1 stop
KLM Logo
09:25 - 17:00OPO-LHR
7h 35m1 stop
$339KLM
Find Deal
Sun, 26 Oct - Sat, 15 Nov

Vueling flights from London Heathrow Airport to Portugal

Our best Vueling deals on London Heathrow Airport to Portugal flight tickets
Vueling
6 Oct
LHR15:05London Heathrow
17h 10m
1 stop
LIS08:15Lisbon Humberto Delgado
13 Oct
LIS20:10Lisbon Humberto Delgado
18h 35m
1 stop
LHR14:45London Heathrow
$309
Find similar
Vueling
10 Oct
LHR15:05London Heathrow
17h 10m
1 stop
LIS08:15Lisbon Humberto Delgado
13 Oct
LIS20:10Lisbon Humberto Delgado
18h 35m
1 stop
LHR14:45London Heathrow
$332
Find similar
Vueling
5 Oct
LHR15:05London Heathrow
17h 10m
1 stop
LIS08:15Lisbon Humberto Delgado
8 Oct
LIS19:05Lisbon Humberto Delgado
19h 10m
1 stop
LHR14:15London Heathrow
$356
Find similar

SWISS flights from London Heathrow Airport to Portugal

Our best SWISS deals on London Heathrow Airport to Portugal flight tickets
SWISS
26 Jan
LHR06:00London Heathrow
8h 35m
1 stop
LIS14:35Lisbon Humberto Delgado
28 Jan
LIS15:25Lisbon Humberto Delgado
6h 15m
1 stop
LHR21:40London Heathrow
$343
Find similar
SWISS
17 Sept
LHR07:00London Heathrow
6h 45m
1 stop
LIS13:45Lisbon Humberto Delgado
30 Sept
LIS18:10Lisbon Humberto Delgado
13h 45m
1 stop
LHR07:55London Heathrow
$365
Find similar
SWISS
2 Sept
LHR17:10London Heathrow
6h 10m
1 stop
LIS23:20Lisbon Humberto Delgado
4 Sept
LIS14:30Lisbon Humberto Delgado
17h 45m
1 stop
LHR08:15London Heathrow
$377
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from London Heathrow Airport to Portugal 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, momondo users made 78,305 searches. Data last updated 21 August 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Portugal that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonLisbon

LHR - LIS

LHRLIS

London Heathrow

Wed 12/11

06:55-09:50

Nonstop2h 55m

Lisbon Humberto Delgado

Tue 18/11

16:00-18:45

Nonstop2h 45m

$261

LondonLisbon

LHR - LIS

LHRLIS

London Heathrow

Tue 2/12

06:55-09:50

Nonstop2h 55m

Lisbon Humberto Delgado

Thu 11/12

12:55-15:50

Nonstop2h 55m

$263

LondonLisbon

LHR - LIS

LHRLIS

London Heathrow

Tue 14/10

19:50-22:35

Nonstop2h 45m

Lisbon Humberto Delgado

Wed 22/10

16:10-18:50

Nonstop2h 40m

$280

LondonLisbon

LHR - LIS

LHRLIS

London Heathrow

Tue 14/10

18:45-21:30

Nonstop2h 45m

Lisbon Humberto Delgado

Wed 22/10

22:10-09:10

1 stop11h 00m

$292

LondonFaro

LHR - FAO

LHRFAO

London Heathrow

Mon 12/1

06:00-10:25

1 stop4h 25m

Faro

Fri 23/1

11:15-17:30

1 stop6h 15m

$297

LondonLisbon

LHR - LIS

LHRLIS

London Heathrow

Mon 6/10

15:05-08:15

1 stop17h 10m

Lisbon Humberto Delgado

Mon 13/10

20:10-14:45

1 stop18h 35m

$309

LondonLisbon

LHR - LIS

LHRLIS

London Heathrow

Sun 12/10

15:05-08:55

1 stop17h 50m

Lisbon Humberto Delgado

Thu 16/10

06:00-14:15

1 stop8h 15m

$317

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Sat 1/11

06:30-15:25

1 stop8h 55m

Porto

Tue 4/11

09:55-16:05

1 stop6h 10m

$329

LondonLisbon

LHR - LIS

LHRLIS

London Heathrow

Fri 10/10

15:05-08:15

1 stop17h 10m

Lisbon Humberto Delgado

Mon 13/10

20:10-14:45

1 stop18h 35m

$332

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Sun 26/10

06:30-15:25

1 stop8h 55m

Porto

Sat 15/11

09:25-17:00

1 stop7h 35m

$339

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Portugal from

How to get the cheapest flight ticket from London Heathrow Airport to Portugal

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Portugal?

In general, January is the cheapest month to fly from London Heathrow Airport to Portugal. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $261. If you’re not able to fly to Portugal in January, then February is your next best option. Flight prices from London Heathrow Airport to Portugal during February average around $280.

What is the cheapest day to depart on your flight to Portugal?

The cheapest day to depart from London Heathrow Airport to Portugal is on a Tuesday. Travellers who choose to depart for Portugal on a Tuesday will often find tickets for as low as $338. When flying out on a Wednesday, the most expensive travel day of the week, you can expect to see flight prices from London Heathrow Airport to Portugal for around $540.

What is the cheapest time of day to depart on your flight to Portugal?

In the afternoon is the cheapest time of day to fly from London Heathrow Airport to Portugal when you can find flight prices for as low as $407. Flying to Portugal in the afternoon is an ideal time because this is during off-peak travel hours. Flights at midday are often more expensive, with an average ticket price of $537.

What is the cheapest London Heathrow to Portugal flight route?

Fly from London Heathrow to Lisbon Humberto Delgado for the best London Heathrow - Portugal flight prices

How far in advance should I book a flight to Portugal?

You are more likely to see cheaper flights to Portugal from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Portugal for around $407 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Portugal from London Heathrow Airport for as low as $332 on momondo.

What cabin class options are available on London Heathrow to Portugal flights?

There are 3 cabin classes available to choose from on London Heathrow to Portugal flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on London Heathrow Airport to Portugal flights?

No. A direct flight is the cheapest option for a flight between London Heathrow Airport to Portugal.

Cheap London Heathrow Airport to Portugal flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to Portugal

Best price found

$204

Fastest flight time

2h 40m

Direct flights

Every day

Airports in Portugal

1 airport
The best one-way flight to Portugal from London Heathrow Airport in the past 72 hours is $204. The best return flight deal from London Heathrow Airport to Portugal found on momondo in the last 72 hours is $428.
The fastest flight from London Heathrow Airport to Portugal takes 2h 40m
Direct flights go from London Heathrow Airport to Portugal every day.
There is 1 airport near Portugal: Lisbon Humberto Delgado (LIS)
Search flight deals

  • When did momondo last update prices for flights from London Heathrow Airport to Portugal?

    Prices for flights from London Heathrow Airport to Portugal are updated daily.

  • How many operators does momondo search for flights from London Heathrow Airport to Portugal?

  • How old do you have to be to fly from London Heathrow Airport to Portugal?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from London Heathrow Airport to Portugal.

  • What documentation or ID do you need to fly to Portugal?

    The travel and health documents you'll need for your trip to Portugal may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at Portugal. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from London Heathrow Airport to Portugal?

Best airlines flying from London Heathrow Airport to Portugal

Compare and see reviews for airlines that fly from London Heathrow Airport to Portugal with momondo
Airline
Rating
Free cancellation
Price
British AirwaysPriceFrom $199Free cancellationRating
6.7
7,291 reviews
Search British Airways flights
TAP AIR PORTUGALPriceFrom $209Free cancellationRating
7.1
1,957 reviews
Search TAP AIR PORTUGAL flights

Why use momondo?

Why should I use momondo to find a flight deal from London to Portugal?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Portugal from London.

Can I find flights from London to Portugal with flexible booking policies on momondo?

Yes. All flights to Portugal from London on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from London to Portugal?

Once you have performed a search for London to Portugal flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from London to Portugal right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Portugal, momondo offers a useful price alert feature which will track prices for flights to Portugal from London and alert you when they change.

An easier way to manage your Portugal trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Tue 26/8
Tue 2/9
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Portugal

Popular Cities in Portugal

Popular flights according to clicks in the last 7 days on momondo
Look for other cheap flights to Lisbonfrom $1,544
Look for other cheap flights to Portofrom $1,347
Look for other cheap flights to Farofrom $1,681
Look for other cheap flights to Funchalfrom $2,173
Look for other cheap flights to Ponta Delgadafrom $3,069