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Cheap flights from London, Ontario to Porto from C$ 647

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 17/6. 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, Ontario to Porto

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
9:30 a.m. - 6:30 p.m.
YXU
-
OPO
28h 00m
2 stops
Air Canada Logo
10:45 a.m. - 9:18 a.m.
OPO
-
YXU
27h 33m
2 stops
C$ 1,079Air Canada
Thu, 4 Jun - Mon, 8 Jun
Air Canada Logo
3:30 p.m. - 9:45 a.m.
YXU
-
OPO
13h 15m
2 stops
Air Canada Logo
10:45 a.m. - 9:18 a.m.
OPO
-
YXU
27h 33m
2 stops
C$ 1,089Air Canada
Thu, 4 Jun - Mon, 8 Jun
Air Canada Logo
3:30 p.m. - 9:45 a.m.
YXU
-
OPO
13h 15m
2 stops
Air Canada Logo
10:45 a.m. - 9:18 a.m.
OPO
-
YXU
27h 33m
2 stops
C$ 1,091Air Canada
Thu, 4 Jun - Mon, 8 Jun
Multiple Airlines Logo
10:05 a.m. - 7:00 a.m.
YXU
-
OPO
15h 55m
2 stops
Multiple Airlines Logo
6:45 p.m. - 5:32 p.m.
OPO
-
YXU
27h 47m
2 stops
C$ 1,196Multiple Airlines
Wed, 17 Jun - Wed, 24 Jun
Multiple Airlines Logo
6:10 a.m. - 9:20 p.m.
YXU
-
OPO
34h 10m
2 stops
Multiple Airlines Logo
8:25 a.m. - 2:57 p.m.
OPO
-
YXU
35h 32m
3 stops
C$ 1,618Multiple Airlines
Wed, 17 Jun - Wed, 24 Jun
Multiple Airlines Logo
6:10 p.m. - 11:55 a.m.
YXU
-
OPO
12h 45m
1 stop
Multiple Airlines Logo
8:25 a.m. - 9:37 p.m.
OPO
-
YXU
18h 12m
2 stops
C$ 1,704Multiple Airlines
Wed, 17 Jun - Wed, 24 Jun
Multiple Airlines Logo
6:10 p.m. - 8:00 a.m.
YXU
-
OPO
32h 50m
3 stops
Multiple Airlines Logo
8:25 a.m. - 2:57 p.m.
OPO
-
YXU
35h 32m
3 stops
C$ 1,751Multiple Airlines
Wed, 17 Jun - Wed, 24 Jun

Air Canada flights from London, Ontario to Porto

Our best Air Canada deals on London, Ontario to Porto flight tickets
Air Canada
4 Jun
YXU9:30 a.m.London
28h 00m
2 stops
OPO6:30 p.m.Porto
8 Jun
OPO10:45 a.m.Porto
27h 33m
2 stops
YXU9:18 a.m.London
C$ 1,079
Air Canada
4 Jun
YXU3:30 p.m.London
13h 15m
2 stops
OPO9:45 a.m.Porto
8 Jun
OPO10:45 a.m.Porto
27h 33m
2 stops
YXU9:18 a.m.London
C$ 1,089
Air Canada
4 Jun
YXU3:30 p.m.London
13h 15m
2 stops
OPO9:45 a.m.Porto
8 Jun
OPO10:45 a.m.Porto
27h 33m
2 stops
YXU9:18 a.m.London
C$ 1,091

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 May 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

Thu 4/6

9:30 a.m.-6:30 p.m.

2 stops28h 00m

Porto

Mon 8/6

10:45 a.m.-9:18 a.m.

2 stops27h 33m

C$ 1,079

LondonPorto

YXU - OPO

YXUOPO

London

Thu 4/6

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

2 stops13h 15m

Porto

Mon 8/6

10:45 a.m.-9:18 a.m.

2 stops27h 33m

C$ 1,089

LondonPorto

YXU - OPO

YXUOPO

London

Thu 4/6

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

2 stops13h 15m

Porto

Mon 8/6

10:45 a.m.-9:18 a.m.

2 stops27h 33m

C$ 1,091

LondonPorto

YXU - OPO

YXUOPO

London

Wed 17/6

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

2 stops15h 55m

Porto

Wed 24/6

6:45 p.m.-5:32 p.m.

2 stops27h 47m

C$ 1,196

LondonPorto

YXU - OPO

YXUOPO

London

Wed 17/6

6:10 a.m.-9:20 p.m.

2 stops34h 10m

Porto

Wed 24/6

8:25 a.m.-2:57 p.m.

3 stops35h 32m

C$ 1,618
Quickest round-trip

LondonPorto

YXU - OPO

YXUOPO

London

Wed 17/6

6:10 p.m.-11:55 a.m.

1 stop12h 45m

Porto

Wed 24/6

8:25 a.m.-9:37 p.m.

2 stops18h 12m

C$ 1,704

LondonPorto

YXU - OPO

YXUOPO

London

Wed 17/6

6:10 p.m.-8:00 a.m.

3 stops32h 50m

Porto

Wed 24/6

8:25 a.m.-2:57 p.m.

3 stops35h 32m

C$ 1,751
Cheapest one-way

LondonPorto

YXU - OPO

YXUOPO

London

Wed 17/6

6:10 a.m.-9:20 p.m.

2 stops34h 10m

C$ 647

LondonPorto

YXU - OPO

YXUOPO

London

Wed 17/6

6:10 a.m.-6:55 a.m.

3 stops43h 45m

C$ 675

LondonPorto

YXU - OPO

YXUOPO

London

Thu 11/6

5:55 p.m.-9:25 p.m.

3 stops46h 30m

C$ 814

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 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

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 75% of people opting to fly with this airline when travelling to Porto. Keep in mind that there are 9 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

13h 15m

Direct flights

None
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
Matosinhos
Coimbra
Pinhao
Braga
Aveiro
Ponte de Lima
Guimarães
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.

An easier way to manage your Porto trip

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