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Cheap flights from London, Ontario to Porto from C$ 549

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 1/10. 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
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
5:40 a.m. - 6:50 a.m.YXU  London-OPO Porto
44h 10m2 stops Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl
Air Canada Logo
8:40 a.m. - 5:45 p.m.OPO  Porto-YXU London
38h 05m2 stops Zurich Toronto Pearson Intl
C$ 1,079Air Canada
Sun, 18 Oct - Thu, 22 Oct
Air Canada Logo
5:40 a.m. - 6:50 a.m.YXU  London-OPO Porto
44h 10m2 stops Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl
Air Canada Logo
8:40 a.m. - 5:45 p.m.OPO  Porto-YXU London
38h 05m2 stops Zurich Toronto Pearson Intl
C$ 1,081Air Canada
Sun, 18 Oct - Thu, 22 Oct
Air Canada Logo
5:40 a.m. - 6:50 a.m.YXU  London-OPO Porto
44h 10m2 stops Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl
Air Canada Logo
8:40 a.m. - 5:45 p.m.OPO  Porto-YXU London
38h 05m2 stops Zurich Toronto Pearson Intl
C$ 1,083Air Canada
Sun, 18 Oct - Thu, 22 Oct
Air Canada Logo
9:15 a.m. - 11:15 a.m.YXU  London-OPO Porto
45h 00m2 stops Toronto Pearson Intl Zurich
Air Canada Logo
6:00 a.m. - 8:37 a.m.OPO  Porto-YXU London
31h 37m2 stops Frankfurt am Main Toronto Pearson Intl
C$ 1,124Air Canada
Sun, 29 Nov - Thu, 3 Dec
Air Canada Logo
5:40 a.m. - 7:00 a.m.YXU  London-OPO Porto
20h 20m2 stops Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl
Air Canada Logo
6:00 a.m. - 9:40 p.m.OPO  Porto-YXU London
20h 40m2 stops Frankfurt am Main Toronto Pearson Intl
C$ 1,147Air Canada
Mon, 28 Sep - Mon, 5 Oct

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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
18 Oct
YXU5:40 a.m.London
44h 10m
2 stops
OPO6:50 a.m.Porto
22 Oct
OPO8:40 a.m.Porto
38h 05m
2 stops
YXU5:45 p.m.London
C$ 1,079
Air Canada
18 Oct
YXU5:40 a.m.London
44h 10m
2 stops
OPO6:50 a.m.Porto
22 Oct
OPO8:40 a.m.Porto
38h 05m
2 stops
YXU5:45 p.m.London
C$ 1,081
Air Canada
18 Oct
YXU5:40 a.m.London
44h 10m
2 stops
OPO6:50 a.m.Porto
22 Oct
OPO8:40 a.m.Porto
38h 05m
2 stops
YXU5:45 p.m.London
C$ 1,083

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 18 August 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 London - OPO Porto

YXUOPO

London

Sun 18/10

5:40 a.m.-6:50 a.m.

2 stops44h 10m

Porto

Thu 22/10

8:40 a.m.-5:45 p.m.

2 stops38h 05m

C$ 1,079

LondonPorto

YXU London - OPO Porto

YXUOPO

London

Sun 18/10

5:40 a.m.-6:50 a.m.

2 stops44h 10m

Porto

Thu 22/10

8:40 a.m.-5:45 p.m.

2 stops38h 05m

C$ 1,081

LondonPorto

YXU London - OPO Porto

YXUOPO

London

Sun 18/10

5:40 a.m.-6:50 a.m.

2 stops44h 10m

Porto

Thu 22/10

8:40 a.m.-5:45 p.m.

2 stops38h 05m

C$ 1,083

LondonPorto

YXU London - OPO Porto

YXUOPO

London

Sun 29/11

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

2 stops45h 00m

Porto

Thu 3/12

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

2 stops31h 37m

C$ 1,124
Quickest round-trip

LondonPorto

YXU London - OPO Porto

YXUOPO

London

Mon 28/9

5:40 a.m.-7:00 a.m.

2 stops20h 20m

Porto

Mon 5/10

6:00 a.m.-9:40 p.m.

2 stops20h 40m

C$ 1,147
Cheapest one-way

LondonPorto

YXU London - OPO Porto

YXUOPO

London

Thu 1/10

5:55 p.m.-8:50 p.m.

3 stops45h 55m

C$ 549

LondonPorto

YXU London - OPO Porto

YXUOPO

London

Thu 1/10

5:40 a.m.-3:25 p.m.

2 stops28h 45m

C$ 728

LondonPorto

YXU London - OPO Porto

YXUOPO

London

Mon 28/9

10:05 a.m.-9:45 a.m.

2 stops42h 40m

C$ 1,170

LondonPorto

YXU London - OPO Porto

YXUOPO

London

Tue 29/9

3:30 p.m.-9:45 a.m.

2 stops37h 15m

C$ 1,174
Quickest one-way

LondonPorto

YXU London - OPO Porto

YXUOPO

London

Thu 1/10

5:40 a.m.-9:45 a.m.

2 stops23h 05m

C$ 1,235

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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, TAP AIR PORTUGAL and Porter Airlines 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

Best price found

C$ 549

Fastest flight time

13h 15m

Direct flights

None
The best one-way flight to Porto from London, Ontario in the past 72 hours is C$ 549. The best round-trip flight deal from London, Ontario to Porto found on momondo in the last 72 hours is C$ 1,079.
The fastest flight from London, Ontario to Porto takes 13h 15m
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 13h 15m 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
Lamego
Matosinhos
Espinho
Mira
Caminha

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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