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Cheap flights from London Heathrow Airport to Porto from $172

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 Porto departing on 4/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from London Heathrow Airport to Porto

Cheap return flights

KAYAK's recommended return flight deals from the most popular airlines that fly from London Heathrow Airport to Porto.
TAP AIR PORTUGAL Logo
06:00 - 17:00LHR-OPO
11h 00m1 stop
TAP AIR PORTUGAL Logo
18:00 - 22:55OPO-LHR
4h 55m1 stop
$336TAP AIR PORTUGAL
Find Deal
Mon, 23 Jun - Wed, 25 Jun
KLM Logo
09:55 - 17:55LHR-OPO
8h 00m1 stop
KLM Logo
06:15 - 16:15OPO-LHR
10h 00m1 stop
$338KLM
Find Deal
Tue, 3 Jun - Wed, 11 Jun
Lufthansa Logo
06:55 - 23:20LHR-OPO
16h 25m1 stop
Lufthansa Logo
06:15 - 19:40OPO-LHR
13h 25m1 stop
$374Lufthansa
Find Deal
Mon, 2 Jun - Wed, 11 Jun
Lufthansa Logo
07:25 - 23:20LHR-OPO
15h 55m1 stop
Lufthansa Logo
06:00 - 20:40OPO-LHR
14h 40m1 stop
$386Lufthansa
Find Deal
Mon, 2 Jun - Sat, 7 Jun
Brussels Airlines Logo
06:50 - 12:05LHR-OPO
5h 15m1 stop
Brussels Airlines Logo
16:50 - 21:35OPO-LHR
4h 45m1 stop
$393Brussels Airlines
Find Deal
Mon, 25 Aug - Fri, 29 Aug
Brussels Airlines Logo
11:05 - 16:00LHR-OPO
4h 55m1 stop
Brussels Airlines Logo
12:55 - 20:55OPO-LHR
8h 00m1 stop
$394Brussels Airlines
Find Deal
Sat, 31 May - Fri, 13 Jun
SWISS Logo
06:00 - 11:25LHR-OPO
5h 25m1 stop
SWISS Logo
08:40 - 07:55OPO-LHR
23h 15m1 stop
$397SWISS
Find Deal
Tue, 3 Jun - Thu, 12 Jun
SWISS Logo
08:45 - 18:30LHR-OPO
9h 45m1 stop
SWISS Logo
14:35 - 21:30OPO-LHR
6h 55m1 stop
$418SWISS
Find Deal
Sat, 10 May - Wed, 14 May
 Logo
09:15 - 21:20LHR-OPO
12h 05m2 stops
 Logo
22:00 - 14:55OPO-LHR
16h 55m2 stops
Mon, 22 Sep - Mon, 29 Sep
 Logo
15:30 - 07:35LHR-OPO
16h 05m2 stops
 Logo
20:35 - 14:45OPO-LHR
18h 10m2 stops
Wed, 7 May - Sat, 10 May

SWISS flights from London Heathrow Airport to Porto

Our best SWISS deals on London Heathrow Airport to Porto flight tickets
SWISS
3 June
LHR06:00London Heathrow
5h 25m
1 stop
OPO11:25Porto
12 June
OPO08:40Porto
23h 15m
1 stop
LHR07:55London Heathrow
SWISS
10 May
LHR08:45London Heathrow
9h 45m
1 stop
OPO18:30Porto
14 May
OPO14:35Porto
6h 55m
1 stop
LHR21:30London Heathrow
SWISS
2 June
LHR08:40London Heathrow
9h 35m
1 stop
OPO18:15Porto
6 June
OPO19:20Porto
24h 00m
1 stop
LHR19:20London Heathrow

KLM flights from London Heathrow Airport to Porto

Our best KLM deals on London Heathrow Airport to Porto flight tickets
KLM
3 June
LHR09:55London Heathrow
8h 00m
1 stop
OPO17:55Porto
11 June
OPO06:15Porto
10h 00m
1 stop
LHR16:15London Heathrow
KLM
3 June
LHR11:45London Heathrow
6h 10m
1 stop
OPO17:55Porto
11 June
OPO06:15Porto
7h 35m
1 stop
LHR13:50London Heathrow
KLM
3 June
LHR11:45London Heathrow
6h 10m
1 stop
OPO17:55Porto
12 June
OPO06:30Porto
7h 20m
1 stop
LHR13:50London Heathrow

See travel insights to Porto from

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

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 typical price of a round-trip flight between London Heathrow Airport and Porto?

What is the cheapest month to fly to Porto?

In general, January is the cheapest month to fly from London Heathrow Airport to Porto. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $304. If you aren’t able to travel to Porto during the month of January, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $304.

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

Our data shows that Friday is the least expensive day to fly to Porto. Tickets to fly out on this day can be as low as $296. When flying out on a Tuesday, the most expensive travel day of the week, you can expect to see flight prices from London Heathrow Airport to Porto for around $787.

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

Our most recent data shows that the best time of day to fly to Porto is at midday. Flights from London Heathrow Airport to Porto during this time can be as low as $0. Flights in the evening are often more expensive, with an average ticket price of $627.

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

You are more likely to see cheaper flights to Porto from London Heathrow Airport when booking 20 weeks ahead of your departure date. In general, you can expect to find flights to Porto for around $408 when searching 20 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Porto from London Heathrow Airport for as low as $338 on momondo.

How have London Heathrow Airport to Porto flight prices changed over time?

As of April 2025, prices for London Heathrow Airport to Porto flights are approximately 11% more expensive when compared to flights at the same time last year.

When to book flights from London Heathrow Airport to Porto

Are you open to changing your travel dates? Check out the ideal times to fly from London Heathrow Airport to Porto according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap London Heathrow Airport to Porto (LHR to OPO) flight deals and tips

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

Best price found

$172

Fastest flight time

4h 20m

Direct flights

None

Airports in Porto

1 airport
The best one-way flight to Porto from London Heathrow Airport in the past 72 hours is $172. The best return flight deal from London Heathrow Airport to Porto found on momondo in the last 72 hours is $336.
The fastest flight from London Heathrow Airport to Porto takes 4h 20m
There are no direct flights from London Heathrow Airport to Porto. Popular non-direct route for this connection is London Heathrow Airport - Porto Airport.
There is 1 airport near Porto: Porto (OPO)

  • How far is London Heathrow to Porto by plane?

    There are 1304.5 km between London Heathrow and Porto. A reasonable flight in good conditions will take 4h 20m.

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

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from London Heathrow Airport to Porto Airport.

  • What documentation or ID do you need to fly to Porto Airport?

    The travel and health documents you'll need for your trip to Porto Airport 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 Porto Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.


Travelling to a place near Porto?

Book flights to Porto if you plan to visit one of these locations
Matosinhos

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from London to Porto . Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo enables you to select and highlight flights to Porto from London with this policy.

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

momondo provides multiple filters to help you find the best flight to Porto from London. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes. momondo can track prices for London to Porto flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.


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