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Cheap flights from London Heathrow Airport to Porto from $87

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 3/5. 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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0 bags

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Find the cheapest flights from London Heathrow Airport to Porto

Cheap round-trip flights

Enter your travel dates to find the best prices.
Vueling Logo
9:55 am - 9:15 pm
LHR
-
OPO
11h 20m
1 stop
Vueling Logo
9:55 pm - 9:10 am
OPO
-
LHR
11h 15m
1 stop
$161Vueling
Wed, Mar 11 - Tue, Mar 17
Vueling Logo
8:50 pm - 8:10 am
LHR
-
OPO
11h 20m
1 stop
Vueling Logo
9:55 pm - 9:10 am
OPO
-
LHR
11h 15m
1 stop
$176Vueling
Sat, Mar 21 - Tue, Mar 24
Multiple Airlines Logo
7:55 pm - 11:00 am
LHR
-
OPO
15h 05m
1 stop
Multiple Airlines Logo
12:25 pm - 5:15 pm
OPO
-
LHR
4h 50m
1 stop
$201Multiple Airlines
Sat, Feb 21 - Tue, Feb 24
KLM Logo
5:50 pm - 10:30 am
LHR
-
OPO
16h 40m
1 stop
KLM Logo
4:10 pm - 8:50 pm
OPO
-
LHR
4h 40m
1 stop
$203KLM
Sat, Feb 21 - Wed, Feb 25
KLM Logo
10:00 am - 3:25 pm
LHR
-
OPO
5h 25m
1 stop
KLM Logo
4:10 pm - 8:50 pm
OPO
-
LHR
4h 40m
1 stop
$204KLM
Thu, Mar 5 - Tue, Mar 10
Vueling Logo
8:50 pm - 9:35 am
LHR
-
OPO
12h 45m
1 stop
Vueling Logo
9:55 pm - 9:10 am
OPO
-
LHR
11h 15m
1 stop
$205Vueling
Thu, Feb 19 - Mon, Feb 23
Multiple Airlines Logo
8:50 pm - 8:10 am
LHR
-
OPO
11h 20m
1 stop
Multiple Airlines Logo
12:00 pm - 5:30 pm
OPO
-
LHR
5h 30m
1 stop
$208Multiple Airlines
Wed, Feb 25 - Wed, Mar 4
Multiple Airlines Logo
8:25 pm - 10:30 am
LHR
-
OPO
14h 05m
1 stop
Multiple Airlines Logo
11:25 am - 6:20 pm
OPO
-
LHR
6h 55m
1 stop
$209Multiple Airlines
Mon, Mar 2 - Mon, Mar 16
Multiple Airlines Logo
8:25 pm - 10:30 am
LHR
-
OPO
14h 05m
1 stop
Multiple Airlines Logo
11:25 am - 4:35 pm
OPO
-
LHR
5h 10m
1 stop
$210Multiple Airlines
Mon, Mar 2 - Mon, Mar 16
Multiple Airlines Logo
8:50 pm - 7:35 am
LHR
-
OPO
10h 45m
1 stop
Multiple Airlines Logo
9:55 pm - 9:10 am
OPO
-
LHR
11h 15m
1 stop
$212Multiple Airlines
Mon, Feb 23 - Thu, Feb 26

TAP AIR PORTUGAL flights from London Heathrow Airport to Porto

Our best TAP AIR PORTUGAL deals on London Heathrow Airport to Porto flight tickets
TAP AIR PORTUGAL
Feb 19
LHR12:25 pmLondon Heathrow
5h 35m
1 stop
OPO6:00 pmPorto
Feb 26
OPO12:05 pmPorto
5h 25m
1 stop
LHR5:30 pmLondon Heathrow
$218
TAP AIR PORTUGAL
Mar 14
LHR12:25 pmLondon Heathrow
6h 35m
1 stop
OPO7:00 pmPorto
Mar 16
OPO6:55 amPorto
5h 45m
1 stop
LHR12:40 pmLondon Heathrow
$219
TAP AIR PORTUGAL
Feb 6
LHR1:40 pmLondon Heathrow
5h 20m
1 stop
OPO7:00 pmPorto
Feb 8
OPO9:55 amPorto
5h 35m
1 stop
LHR3:30 pmLondon Heathrow
$220

KLM flights from London Heathrow Airport to Porto

Our best KLM deals on London Heathrow Airport to Porto flight tickets
KLM
Feb 21
LHR5:50 pmLondon Heathrow
16h 40m
1 stop
OPO10:30 amPorto
Feb 25
OPO4:10 pmPorto
4h 40m
1 stop
LHR8:50 pmLondon Heathrow
$203
KLM
Mar 5
LHR10:00 amLondon Heathrow
5h 25m
1 stop
OPO3:25 pmPorto
Mar 10
OPO4:10 pmPorto
4h 40m
1 stop
LHR8:50 pmLondon Heathrow
$204
KLM
Mar 13
LHR8:25 pmLondon Heathrow
14h 05m
1 stop
OPO10:30 amPorto
Mar 20
OPO4:10 pmPorto
4h 40m
1 stop
LHR8:50 pmLondon Heathrow
$214

momondo Fare Finder

 
Customize your flight search to find flights from London Heathrow Airport 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, momondo users made 832,500 searches. Data last updated January 29, 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Porto that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Wed 3/11

9:55 am-9:15 pm

1 stop11h 20m

Porto

Tue 3/17

9:55 pm-9:10 am

1 stop11h 15m

$161

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Sat 3/21

8:50 pm-8:10 am

1 stop11h 20m

Porto

Tue 3/24

9:55 pm-9:10 am

1 stop11h 15m

$176

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Sat 2/21

7:55 pm-11:00 am

1 stop15h 05m

Porto

Tue 2/24

12:25 pm-5:15 pm

1 stop4h 50m

$201

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Sat 2/21

5:50 pm-10:30 am

1 stop16h 40m

Porto

Wed 2/25

4:10 pm-8:50 pm

1 stop4h 40m

$203

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Thu 3/5

10:00 am-3:25 pm

1 stop5h 25m

Porto

Tue 3/10

4:10 pm-8:50 pm

1 stop4h 40m

$204

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Thu 2/19

8:50 pm-9:35 am

1 stop12h 45m

Porto

Mon 2/23

9:55 pm-9:10 am

1 stop11h 15m

$205

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Wed 2/25

8:50 pm-8:10 am

1 stop11h 20m

Porto

Wed 3/4

12:00 pm-5:30 pm

1 stop5h 30m

$208

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Mon 3/2

8:25 pm-10:30 am

1 stop14h 05m

Porto

Mon 3/16

11:25 am-6:20 pm

1 stop6h 55m

$209

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Mon 3/2

8:25 pm-10:30 am

1 stop14h 05m

Porto

Mon 3/16

11:25 am-4:35 pm

1 stop5h 10m

$210

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Mon 2/23

8:50 pm-7:35 am

1 stop10h 45m

Porto

Thu 2/26

9:55 pm-9:10 am

1 stop11h 15m

$212

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 cheapest month to fly to Porto?

The month of January is, on average, the cheapest month to fly to Porto from London Heathrow Airport, with most prices found around $200. If you aren’t able to travel during the month of January, then book flights to Porto from London Heathrow Airport during November instead. Flights to Porto in November, while not as cheap as those in January, still average around $218.

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

The cheapest day to depart on your flight to Porto is on a Saturday when prices can be found for as low as $198. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Thursday because tickets tend to average around $263. These prices are subject to change though, so be sure to set up a Price Alert for flights to Porto.

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

At noon is the cheapest time of day to fly from London Heathrow Airport to Porto when you can find flight prices for as low as $161. Flying to Porto at noon is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $293 on average. Flights to Porto from London Heathrow Airport in the evening are generally more expensive because this time of day is more convenient for travelers’ schedules.

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 weeks ahead of your departure date. In general, you can expect to find flights to Porto for around $283 when searching 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 $216 on momondo.

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

As of January 2026, prices for London Heathrow Airport to Porto flights are approximately 28% 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 round-trip 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

Fastest flight time

9h 00m

Direct flights

None
The fastest flight from London Heathrow Airport to Porto takes 9h 00m
There are no direct flights from London Heathrow Airport to Porto. There are no popular flight routes from London Heathrow Airport to Porto.
Search flight deals

  • How far is London Heathrow to Porto by plane?

    There are 810.6 mi between London Heathrow and Porto. 9h 00m is a normal flight duration for this route.

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

  • 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 layovers. 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 required travel and health documents for your Porto Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Porto Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from London Heathrow Airport to Porto?

Best airlines flying from London Heathrow Airport to Porto

Compare and see reviews for airlines that fly from London Heathrow Airport to Porto with momondo
Airline
Rating
Free Cancellation
Price
TAP AIR PORTUGALPriceFrom $168Free CancellationRating
7.1
2,130 reviews
Search TAP AIR PORTUGAL flights

Traveling to a place near Porto?

Book flights to Porto if you plan to visit one of these locations
Vila Nova de Gaia
Coimbra
Braga
Aveiro
Matosinhos
Esposende
Lamego
Guimarães
Espinho
Chaves
Pinhao
Arcos de Valdevez
Ponte de Lima
Viseu
Curia
Penafiel
Mesao Frio
Mira
Baiao

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from London to Porto. momondo saves you time and could save you money on your trip.

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

Yes. momondo allows you to filter the results for London to Porto flights to just show those with flexible booking policies.

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

Once you have performed a search for London to Porto 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 Porto right now. Can momondo alert me if prices change?

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

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