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Cheap flights from London, Ontario to Porto from C$ 802

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from London, Ontario to Porto departing on 2/3. 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

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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
5:10 a.m. - 12:50 p.m.
YXU
-
OPO
26h 40m
2 stops
Air Canada Logo
6:30 a.m. - 9:21 p.m.
OPO
-
YXU
19h 51m
2 stops
C$ 802Air Canada
Mon, 2 Mar - Fri, 6 Mar
Multiple Airlines Logo
5:40 p.m. - 7:15 p.m.
YXU
-
OPO
20h 35m
2 stops
Multiple Airlines Logo
8:05 p.m. - 9:21 p.m.
OPO
-
YXU
30h 16m
3 stops
C$ 1,469Multiple Airlines
Mon, 2 Mar - Fri, 6 Mar
Multiple Airlines Logo
9:25 a.m. - 11:00 p.m.
YXU
-
OPO
32h 35m
3 stops
Multiple Airlines Logo
8:05 p.m. - 9:21 p.m.
OPO
-
YXU
30h 16m
3 stops
C$ 1,541Multiple Airlines
Mon, 2 Mar - Fri, 6 Mar
United Airlines Logo
12:20 p.m. - 6:55 a.m.
YXU
-
OPO
13h 35m
2 stops
United Airlines Logo
9:00 a.m. - 9:38 p.m.
OPO
-
YXU
17h 38m
2 stops
C$ 1,612United Airlines
Thu, 21 May - Mon, 25 May
United Airlines Logo
12:20 p.m. - 6:55 a.m.
YXU
-
OPO
13h 35m
2 stops
United Airlines Logo
9:00 a.m. - 9:38 p.m.
OPO
-
YXU
17h 38m
2 stops
C$ 1,615United Airlines
Thu, 21 May - Mon, 25 May
United Airlines Logo
12:20 p.m. - 6:55 a.m.
YXU
-
OPO
13h 35m
2 stops
United Airlines Logo
9:00 a.m. - 8:53 a.m.
OPO
-
YXU
28h 53m
2 stops
C$ 1,619United Airlines
Thu, 21 May - Mon, 25 May
Air Canada Logo
12:20 p.m. - 3:45 p.m.
YXU
-
OPO
22h 25m
2 stops
Air Canada Logo
11:00 a.m. - 9:38 p.m.
OPO
-
YXU
15h 38m
2 stops
C$ 1,778Air Canada
Thu, 21 May - Mon, 25 May

Air Canada flights from London, Ontario to Porto

Our best Air Canada deals on London, Ontario to Porto flight tickets
Air Canada
2 Mar
YXU5:10 a.m.London
26h 40m
2 stops
OPO12:50 p.m.Porto
6 Mar
OPO6:30 a.m.Porto
19h 51m
2 stops
YXU9:21 p.m.London
C$ 802
Air Canada
21 May
YXU12:20 p.m.London
22h 25m
2 stops
OPO3:45 p.m.Porto
25 May
OPO11:00 a.m.Porto
15h 38m
2 stops
YXU9:38 p.m.London
C$ 1,778

United Airlines flights from London, Ontario to Porto

Our best United Airlines deals on London, Ontario to Porto flight tickets
United Airlines
21 May
YXU12:20 p.m.London
13h 35m
2 stops
OPO6:55 a.m.Porto
25 May
OPO9:00 a.m.Porto
17h 38m
2 stops
YXU9:38 p.m.London
C$ 1,612
United Airlines
21 May
YXU12:20 p.m.London
13h 35m
2 stops
OPO6:55 a.m.Porto
25 May
OPO9:00 a.m.Porto
17h 38m
2 stops
YXU9:38 p.m.London
C$ 1,615
United Airlines
21 May
YXU12:20 p.m.London
13h 35m
2 stops
OPO6:55 a.m.Porto
25 May
OPO9:00 a.m.Porto
28h 53m
2 stops
YXU8:53 a.m.London
C$ 1,619

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 February 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

LondonPorto

YXU - OPO

YXUOPO

London

Mon 2/3

5:10 a.m.-12:50 p.m.

2 stops26h 40m

Porto

Fri 6/3

6:30 a.m.-9:21 p.m.

2 stops19h 51m

C$ 802

LondonPorto

YXU - OPO

YXUOPO

London

Mon 2/3

5:40 p.m.-7:15 p.m.

2 stops20h 35m

Porto

Fri 6/3

8:05 p.m.-9:21 p.m.

3 stops30h 16m

C$ 1,469

LondonPorto

YXU - OPO

YXUOPO

London

Mon 2/3

9:25 a.m.-11:00 p.m.

3 stops32h 35m

Porto

Fri 6/3

8:05 p.m.-9:21 p.m.

3 stops30h 16m

C$ 1,541

LondonPorto

YXU - OPO

YXUOPO

London

Thu 21/5

12:20 p.m.-6:55 a.m.

2 stops13h 35m

Porto

Mon 25/5

9:00 a.m.-9:38 p.m.

2 stops17h 38m

C$ 1,612

LondonPorto

YXU - OPO

YXUOPO

London

Thu 21/5

12:20 p.m.-6:55 a.m.

2 stops13h 35m

Porto

Mon 25/5

9:00 a.m.-9:38 p.m.

2 stops17h 38m

C$ 1,615

LondonPorto

YXU - OPO

YXUOPO

London

Thu 21/5

12:20 p.m.-6:55 a.m.

2 stops13h 35m

Porto

Mon 25/5

9:00 a.m.-8:53 a.m.

2 stops28h 53m

C$ 1,619

LondonPorto

YXU - OPO

YXUOPO

London

Thu 21/5

12:20 p.m.-3:45 p.m.

2 stops22h 25m

Porto

Mon 25/5

11:00 a.m.-9:38 p.m.

2 stops15h 38m

C$ 1,778

LondonPorto

YXU - OPO

YXUOPO

London

Thu 2/4

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

2 stops35h 05m

C$ 2,059

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, 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 35m

Direct flights

None
The fastest flight from London, Ontario to Porto takes 13h 35m
There are no direct flights from London, Ontario to Porto. There are no popular flight routes from London, Ontario to Porto.
Search flight deals

  • 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 35m 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
Coimbra
Matosinhos
Braga
Vila Nova de Gaia
Aveiro
Pinhao
Esposende
Guimarães
Espinho
Lamego
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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