Find flights
When to book
FAQs

Cheap flights from London, ON to Portugal from C$ 639

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 29/5. Fares are subject to change and may not be available on all flights or dates of travel.
YXU — LIS
29 May — 5 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from London to Portugal

Enter your travel dates to find the best prices.

Cheapest flights from London to Portugal
Explore the most affordable flight options available from London to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 April 2026.

Sun 7/65:10 a.m.
YXU
-
OPO
2 stops20h 50m
Air Canada
Thu 11/611:50 a.m.
OPO
-
YXU
2 stops32h 08m
Air Canada
Deal found 24/4C$ 1,045
Sun 7/65:10 a.m.
YXU
-
LIS
2 stops23h 10m
Air Canada
Thu 11/61:00 p.m.
LIS
-
YXU
1 stop25h 18m
Air Canada
Deal found 26/4C$ 1,070
Sun 23/85:40 a.m.
YXU
-
LIS
1 stop24h 25m
Air Canada
Wed 2/912:55 p.m.
LIS
-
YXU
1 stop13h 45m
Air Canada
Deal found 28/4C$ 1,136
Sun 23/810:05 a.m.
YXU
-
LIS
2 stops18h 15m
Air Canada
Mon 31/811:25 a.m.
LIS
-
YXU
2 stops35h 20m
Air Canada
Deal found 28/4C$ 1,145
Sun 7/65:10 a.m.
YXU
-
FAO
2 stops23h 45m
United Airlines
Thu 11/611:40 a.m.
FAO
-
YXU
2 stops50h 38m
United Airlines
Deal found 26/4C$ 1,199
Sat 21/115:45 a.m.
YXU
-
OPO
2 stops22h 45m
Air Canada
Wed 25/1112:35 p.m.
OPO
-
YXU
2 stops49h 31m
Air Canada
Deal found 23/4C$ 1,224
Sat 22/83:30 p.m.
YXU
-
FAO
2 stops37h 25m
United Airlines
Tue 1/911:40 a.m.
FAO
-
YXU
2 stops35h 05m
United Airlines
Deal found 28/4C$ 1,300
Fri 14/86:20 p.m.
YXU
-
OPO
2 stops55h 35m
United Airlines
Sat 29/89:00 a.m.
OPO
-
YXU
2 stops17h 40m
United Airlines
Deal found 27/4C$ 1,336
Thu 20/85:40 a.m.
YXU
-
FAO
2 stops47h 10m
United Airlines
Tue 1/911:40 a.m.
FAO
-
YXU
2 stops15h 00m
United Airlines
Deal found 28/4C$ 1,355
Tue 25/86:20 p.m.
YXU
-
FAO
2 stops34h 30m
United Airlines
Tue 1/911:40 a.m.
FAO
-
YXU
2 stops15h 00m
United Airlines
Deal found 28/4C$ 1,375
Sun 7/66:10 p.m.
YXU
-
FAO
2 stops39h 55m
Air Canada
Thu 11/63:55 p.m.
FAO
-
YXU
2 stops46h 23m
Air Canada
Deal found 24/4C$ 1,421
Sun 23/86:20 p.m.
YXU
-
FAO
2 stops36h 10m
Multiple Airlines
Sat 29/87:05 p.m.
FAO
-
YXU
2 stops27h 40m
Multiple Airlines
Deal found 28/4C$ 1,479

Find flight deals from London to Portugal

Keep the following information in mind while searching for London to Portugal flight deals. Data was last updated 29 April 2026.

Round-trip from

C$ 1,045

One-way from

C$ 639
Air Canada
  • Air Canada
  • 7/6-11/6
  • 4 total stops
  • 52h 58m total
  • London to Portugal
Search Deals
WestJet
  • WestJet
  • 29/5
  • 2 total stops
  • 50h 15m total
  • London to Portugal
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from London to Portugal 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, Cheapflights users made 629,999 searches. Data last updated 29 April 2026.
Use the filters below to find and compare flights from London to Portugal that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LondonPorto

YXU - OPO

YXUOPO

London

Sun 7/6

5:10 a.m.-7:00 a.m.

2 stops20h 50m

Porto

Thu 11/6

11:50 a.m.-2:58 p.m.

2 stops32h 08m

C$ 1,045

LondonLisbon

YXU - LIS

YXULIS

London

Sun 7/6

5:10 a.m.-9:20 a.m.

2 stops23h 10m

Lisbon Humberto Delgado

Thu 11/6

1:00 p.m.-9:18 a.m.

1 stop25h 18m

C$ 1,070

LondonFaro

YXU - FAO

YXUFAO

London

Sun 7/6

5:10 a.m.-9:55 a.m.

2 stops23h 45m

Faro

Thu 11/6

11:40 a.m.-9:18 a.m.

2 stops50h 38m

C$ 1,199

LondonLisbon

YXU - LIS

YXULIS

London

Sun 23/8

3:30 p.m.-10:30 a.m.

2 stops14h 00m

Lisbon Humberto Delgado

Tue 1/9

12:20 p.m.-2:55 p.m.

2 stops31h 35m

C$ 1,207

LondonLisbon

YXU - LIS

YXULIS

London

Mon 24/8

3:30 p.m.-10:30 a.m.

2 stops14h 00m

Lisbon Humberto Delgado

Fri 28/8

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

2 stops26h 00m

C$ 1,268

LondonLisbon

YXU - LIS

YXULIS

London

Wed 15/7

5:10 a.m.-8:20 a.m.

2 stops22h 10m

Lisbon Humberto Delgado

Tue 28/7

12:20 p.m.-9:40 p.m.

2 stops14h 20m

C$ 1,268

LondonLisbon

YXU - LIS

YXULIS

London

Sat 22/8

3:30 p.m.-10:35 a.m.

2 stops14h 05m

Lisbon Humberto Delgado

Tue 1/9

12:20 p.m.-9:40 p.m.

2 stops14h 20m

C$ 1,268

LondonLisbon

YXU - LIS

YXULIS

London

Wed 15/7

5:10 a.m.-10:30 a.m.

2 stops24h 20m

Lisbon Humberto Delgado

Wed 29/7

10:25 a.m.-5:45 p.m.

2 stops36h 20m

C$ 1,268

LondonFaro

YXU - FAO

YXUFAO

London

Mon 24/8

5:40 a.m.-9:10 a.m.

2 stops22h 30m

Faro

Tue 1/9

11:40 a.m.-2:55 p.m.

2 stops32h 15m

C$ 1,300

LondonPorto

YXU - OPO

YXUOPO

London

Fri 14/8

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

2 stops55h 35m

Porto

Sat 29/8

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

2 stops17h 40m

C$ 1,336

Flights are sorted by cheapest round-trip flights first.

Deals found on 25/4

Showing 1-10 of 34 resultsSorted by cheapest first
1
2
3
4

Best time to book a flight from London to Portugal

Have a flexible travel schedule? Discover the best time to fly to Portugal from London with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from London to Portugal
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from London to Portugal. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from London to Portugal?

    Located just 8.6 km from the city centre, London (YXU) is the airport most travellers will use when flying to Portugal from London.

  • How long is the flight from London, Ontario to Portugal?

    A quick flight from London, Ontario to Portugal can take about 20h 50m. Air Canada provides one of the quickest options available for as low as C$ 1,045. There are 5779 km between London, Ontario and Portugal. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the most popular routes from London, Ontario to Portugal?

    When deciding which route to take from London, Ontario to Portugal consider London - Lisbon Humberto Delgado, London - Faro or London - Porto as they are the most popular.

  • Can I find deals for flights from London to Portugal that include hotel bookings?

    Yes. In addition to deals on London to Portugal flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from London to Portugal?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Portugal.

  • Can I find deals for business class flights from London to Portugal?

    Yes. Cheapflights offers flight deals from London to Portugal by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for London to Portugal

See prices for flight routes from nearby airports that may be better suited for you.
Pierre Elliott Trudeau Intl to Charles de Gaulle flights
Pearson Intl to Heathrow flights
Pearson Intl to Gatwick flights
Pearson Intl to Leonardo da Vinci/Fiumicino flights
Pearson Intl to Dublin flights
Pearson Intl to Charles de Gaulle flights
Pearson Intl to Istanbul flights
Pierre Elliott Trudeau Intl to Lisbon flights
Pierre Elliott Trudeau Intl to Athens flights
Pierre Elliott Trudeau Intl to Leonardo da Vinci/Fiumicino flights
Pierre Elliott Trudeau Intl to Orly flights
Pearson Intl to Lisbon flights
Pearson Intl to Athens flights
Pearson Intl to Stansted flights
Pearson Intl to London City flights
Pearson Intl to Amsterdam flights
Pearson Intl to Barcelona-El Prat flights
Pierre Elliott Trudeau Intl to Istanbul flights
Toronto Island to Heathrow flights
Pearson Intl to Luton flights
Pearson Intl to Madrid flights
Pierre Elliott Trudeau Intl to Beauvais-Tille flights
Pierre Elliott Trudeau Intl to Barcelona-El Prat flights
Pearson Intl to Orly flights
Toronto Island to Gatwick flights
Pierre Elliott Trudeau Intl to Malpensa flights
Pierre Elliott Trudeau Intl to Heathrow flights
Pearson Intl to Edinburgh flights
Pearson Intl to Frederic Chopin flights
Toronto Island to Charles de Gaulle flights
Toronto Island to Leonardo da Vinci/Fiumicino flights
Pearson Intl to Frankfurt flights
Pierre Elliott Trudeau Intl to Bruxelles-National flights
Pearson Intl to Vicenza flights
Pierre Elliott Trudeau Intl to Geneva flights
Pearson Intl to Sabiha Gokcen flights
Pearson Intl to Porto flights
Pierre Elliott Trudeau Intl to Lyon flights
Toronto Island to Dublin flights
Pierre Elliott Trudeau Intl to Vicenza flights
Toronto Island to Athens flights
Pierre Elliott Trudeau Intl to Marseille flights
Toronto Island to Frankfurt flights
Toronto Island to Lisbon flights
Pearson Intl to Zurich flights
Pearson Intl to Vienna flights
Pearson Intl to Keflavik Intl flights
Pierre Elliott Trudeau Intl to Frankfurt flights
Pearson Intl to Ciampino flights
Pearson Intl to Beauvais-Tille flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from London to Portugal?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from London to Portugal. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from London to Portugal?

Cheapflights simply makes it quick and affordable to book flights from London to Portugal by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from London to Portugal with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from London to Portugal, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from London to Portugal become cheaper?

Yes, Cheapflights offers price alerts on London to Portugal flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.