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Cheap flights from London, Ontario to Porto from C$ 655

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, Ontario to Porto departing on 29/8. 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
1 adult, Economy, 0 bags

Find the cheapest flights from London, Ontario to Porto

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
9:15 a.m. - 11:15 a.m.
YXU
-
OPO
45h 00m
2 stops
Air Canada Logo
6:00 a.m. - 2:47 p.m.
OPO
-
YXU
37h 47m
2 stops
C$ 1,164Air Canada
Wed, 25 Nov - Sun, 29 Nov
Air Canada Logo
9:15 a.m. - 11:15 a.m.
YXU
-
OPO
45h 00m
2 stops
Air Canada Logo
6:00 a.m. - 2:47 p.m.
OPO
-
YXU
37h 47m
2 stops
C$ 1,168Air Canada
Wed, 25 Nov - Sun, 29 Nov
Air Canada Logo
3:25 p.m. - 11:15 a.m.
YXU
-
OPO
38h 50m
2 stops
Air Canada Logo
6:00 a.m. - 8:37 a.m.
OPO
-
YXU
31h 37m
2 stops
C$ 1,171Air Canada
Wed, 25 Nov - Sun, 29 Nov
Air Canada Logo
9:15 a.m. - 11:15 a.m.
YXU
-
OPO
45h 00m
2 stops
Air Canada Logo
6:00 a.m. - 2:47 p.m.
OPO
-
YXU
37h 47m
2 stops
C$ 1,172Air Canada
Wed, 25 Nov - Sun, 29 Nov
Air Canada Logo
9:15 a.m. - 11:15 a.m.
YXU
-
OPO
45h 00m
2 stops
Air Canada Logo
6:00 a.m. - 2:47 p.m.
OPO
-
YXU
37h 47m
2 stops
C$ 1,173Air Canada
Wed, 25 Nov - Sun, 29 Nov
Air Canada Logo
6:20 p.m. - 7:00 a.m.
YXU
-
OPO
31h 40m
2 stops
Air Canada Logo
11:20 a.m. - 9:40 p.m.
OPO
-
YXU
15h 20m
2 stops
C$ 1,365Air Canada
Sun, 16 Aug - Sat, 22 Aug
Air Canada Logo
10:05 a.m. - 7:00 a.m.
YXU
-
OPO
15h 55m
2 stops
Air Canada Logo
12:10 p.m. - 9:20 a.m.
OPO
-
YXU
50h 10m
2 stops
C$ 1,435Air Canada
Mon, 31 Aug - Mon, 7 Sep
Lufthansa Logo
10:05 a.m. - 7:10 a.m.
YXU
-
OPO
16h 05m
2 stops
Lufthansa Logo
4:35 p.m. - 9:40 p.m.
OPO
-
YXU
34h 05m
2 stops
C$ 1,562Lufthansa
Fri, 25 Sep - Sun, 27 Sep
Multiple Airlines Logo
6:20 p.m. - 7:00 a.m.
YXU
-
OPO
31h 40m
2 stops
Multiple Airlines Logo
9:15 p.m. - 5:20 a.m.
OPO
-
YXU
37h 05m
3 stops
C$ 1,569Multiple Airlines
Sun, 16 Aug - Sat, 22 Aug
Multiple Airlines Logo
2:40 p.m. - 6:45 a.m.
YXU
-
OPO
35h 05m
3 stops
Multiple Airlines Logo
9:15 p.m. - 5:20 a.m.
OPO
-
YXU
37h 05m
3 stops
C$ 1,646Multiple Airlines
Sun, 16 Aug - Sat, 22 Aug

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Air Canada flights from London, Ontario to Porto

Our best Air Canada deals on London, Ontario to Porto flight tickets
Air Canada
25 Nov
YXU9:15 a.m.London
45h 00m
2 stops
OPO11:15 a.m.Porto
29 Nov
OPO6:00 a.m.Porto
37h 47m
2 stops
YXU2:47 p.m.London
C$ 1,164
Air Canada
25 Nov
YXU9:15 a.m.London
45h 00m
2 stops
OPO11:15 a.m.Porto
29 Nov
OPO6:00 a.m.Porto
37h 47m
2 stops
YXU2:47 p.m.London
C$ 1,168
Air Canada
25 Nov
YXU3:25 p.m.London
38h 50m
2 stops
OPO11:15 a.m.Porto
29 Nov
OPO6:00 a.m.Porto
31h 37m
2 stops
YXU8:37 a.m.London
C$ 1,171

momondo Fare Finder

 
Customize your flight search to find flights from London, Ontario 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 96,600 searches. Data last updated 19 July 2026.
Use the filters below to find and compare flights from London, Ontario to Porto that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LondonPorto

YXU - OPO

YXUOPO

London

Wed 25/11

9:15 a.m.-11:15 a.m.

2 stops45h 00m

Porto

Sun 29/11

6:00 a.m.-2:47 p.m.

2 stops37h 47m

C$ 1,164

LondonPorto

YXU - OPO

YXUOPO

London

Wed 25/11

9:15 a.m.-11:15 a.m.

2 stops45h 00m

Porto

Sun 29/11

6:00 a.m.-2:47 p.m.

2 stops37h 47m

C$ 1,168

LondonPorto

YXU - OPO

YXUOPO

London

Wed 25/11

3:25 p.m.-11:15 a.m.

2 stops38h 50m

Porto

Sun 29/11

6:00 a.m.-8:37 a.m.

2 stops31h 37m

C$ 1,171

LondonPorto

YXU - OPO

YXUOPO

London

Wed 25/11

9:15 a.m.-11:15 a.m.

2 stops45h 00m

Porto

Sun 29/11

6:00 a.m.-2:47 p.m.

2 stops37h 47m

C$ 1,172

LondonPorto

YXU - OPO

YXUOPO

London

Wed 25/11

9:15 a.m.-11:15 a.m.

2 stops45h 00m

Porto

Sun 29/11

6:00 a.m.-2:47 p.m.

2 stops37h 47m

C$ 1,173
Quickest round-trip

LondonPorto

YXU - OPO

YXUOPO

London

Sun 16/8

6:20 p.m.-7:00 a.m.

2 stops31h 40m

Porto

Sat 22/8

11:20 a.m.-9:40 p.m.

2 stops15h 20m

C$ 1,365

LondonPorto

YXU - OPO

YXUOPO

London

Mon 31/8

10:05 a.m.-7:00 a.m.

2 stops15h 55m

Porto

Mon 7/9

12:10 p.m.-9:20 a.m.

2 stops50h 10m

C$ 1,435

LondonPorto

YXU - OPO

YXUOPO

London

Fri 25/9

10:05 a.m.-7:10 a.m.

2 stops16h 05m

Porto

Sun 27/9

4:35 p.m.-9:40 p.m.

2 stops34h 05m

C$ 1,562

LondonPorto

YXU - OPO

YXUOPO

London

Sun 16/8

6:20 p.m.-7:00 a.m.

2 stops31h 40m

Porto

Sat 22/8

9:15 p.m.-5:20 a.m.

3 stops37h 05m

C$ 1,569

LondonPorto

YXU - OPO

YXUOPO

London

Sun 16/8

2:40 p.m.-6:45 a.m.

3 stops35h 05m

Porto

Sat 22/8

9:15 p.m.-5:20 a.m.

3 stops37h 05m

C$ 1,646

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 11 resultsSorted by cheapest first
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See travel insights to Porto from

How to get the cheapest flight ticket from London, Ontario 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 airline that flies from London to Porto?

United Airlines is the most popular carrier operating from London to Porto

Which airlines fly to Porto?

Air Transat, Porter Airlines and TAP AIR PORTUGAL are the top three most popular airlines that fly to Porto from London, Ontario according to our data. Air Transat is the first choice among our users, with 76% of people opting to fly with this airline when travelling to Porto. Keep in mind that there are 8 different airlines that fly to Porto on a routine basis, so you have a few additional options to choose from.

When to book flights from London, Ontario to Porto

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

Cheap London, Ontario to Porto (YXU to OPO) flight deals and tips

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

Fastest flight time

23h 00m

Direct flights

None
The fastest flight from London, Ontario to Porto takes 23h 00m
There are no direct flights from London, Ontario to Porto. There are no popular flight routes from London, Ontario to Porto.
Search flight deals

Frequently asked questions about flying from London, Ontario to Porto

  • How far is London to Porto by plane?

    The straight-line distance from London to Porto is 5796.5 km. Typically, this will take 23h 00m by plane in normal conditions.

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

    Prices for flights from London Airport to Porto Airport refresh daily.

  • How old do you have to be to fly from London 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 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.

Travelling to a place near Porto?

Book flights to Porto if you plan to visit one of these locations
Vila Nova de Gaia
Braga
Guimarães
Coimbra
Pinhao
Aveiro
Ponte de Lima
Matosinhos
Lamego
Espinho
Caminha
Mira

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. All flights to Porto 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 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?

Price alerts on flights to Porto from London are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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