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Cheap flights from London, ON to Portugal from C$ 644

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 12/9. Fares are subject to change and may not be available on all flights or dates of travel.
YXU — LIS
1 Sep — 8 Sep1
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 2 August 2026.

Sat 21/113:25 p.m.
YXU
-
LIS
1 stop12h 30m
Air Canada
Wed 25/1111:20 a.m.
LIS
-
YXU
1 stop26h 17m
Air Canada
Deal found 29/7C$ 779
Mon 5/105:40 a.m.
YXU
-
OPO
2 stops20h 20m
Air Canada
Thu 8/108:40 a.m.
OPO
-
YXU
2 stops53h 40m
Air Canada
Deal found 29/7C$ 1,146
Mon 24/85:40 a.m.
YXU
-
LIS
2 stops22h 40m
Air Canada
Mon 31/812:20 p.m.
LIS
-
YXU
2 stops14h 20m
Air Canada
Deal found 28/7C$ 1,205
Mon 14/96:20 p.m.
YXU
-
OPO
2 stops34h 25m
Multiple Airlines
Mon 21/97:20 p.m.
OPO
-
YXU
2 stops27h 23m
Multiple Airlines
Deal found 31/7C$ 1,247
Sat 22/810:05 a.m.
YXU
-
OPO
2 stops42h 40m
United Airlines
Fri 4/99:00 a.m.
OPO
-
YXU
2 stops34h 50m
United Airlines
Deal found 29/7C$ 1,297
Mon 14/95:40 a.m.
YXU
-
OPO
2 stops20h 20m
Air Canada
Mon 21/96:20 a.m.
OPO
-
YXU
3 stops32h 00m
Air Canada
Deal found 31/7C$ 1,387
Fri 4/95:40 a.m.
YXU
-
OPO
2 stops20h 30m
Air Canada
Sat 12/912:20 p.m.
OPO
-
YXU
2 stops14h 20m
Air Canada
Deal found 30/7C$ 1,481
Mon 5/106:10 a.m.
YXU
-
PDL
3 stops32h 25m
Multiple Airlines
Mon 12/109:50 p.m.
PDL
-
YXU
3 stops35h 30m
Multiple Airlines
Deal found 30/7C$ 1,635
Mon 5/105:40 a.m.
YXU
-
FAO
2 stops30h 40m
Air Canada
Thu 8/103:55 p.m.
FAO
-
YXU
2 stops54h 50m
Air Canada
Deal found 30/7C$ 1,656
Fri 4/92:40 p.m.
YXU
-
OPO
3 stops20h 30m
Multiple Airlines
Sat 12/97:35 a.m.
OPO
-
YXU
3 stops26h 45m
Multiple Airlines
Deal found 30/7C$ 1,680
Sat 22/85:55 p.m.
YXU
-
OPO
2 stops47h 05m
Multiple Airlines
Fri 4/98:55 p.m.
OPO
-
YXU
3 stops45h 55m
Multiple Airlines
Deal found 29/7C$ 1,691

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 2 August 2026.

Round-trip from

C$ 779

One-way from

C$ 644
Air Canada
  • Air Canada
  • 21/11-25/11
  • 2 total stops
  • 38h 47m total
  • London to Portugal
Search Deals
12/9
  • 12/9
  • 3 total stops
  • 51h 50m 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 2 August 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

LondonLisbon

YXU - LIS

YXULIS

London

Sat 21/11

3:25 p.m.-8:55 a.m.

1 stop12h 30m

Lisbon Humberto Delgado

Wed 25/11

11:20 a.m.-8:37 a.m.

1 stop26h 17m

C$ 779

LondonPorto

YXU - OPO

YXUOPO

London

Mon 5/10

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

2 stops20h 20m

Porto

Thu 8/10

8:40 a.m.-9:20 a.m.

2 stops53h 40m

C$ 1,146

LondonLisbon

YXU - LIS

YXULIS

London

Mon 24/8

5:40 a.m.-9:20 a.m.

2 stops22h 40m

Lisbon Humberto Delgado

Mon 31/8

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

2 stops14h 20m

C$ 1,205

LondonPorto

YXU - OPO

YXUOPO

London

Mon 14/9

6:20 p.m.-9:45 a.m.

2 stops34h 25m

Porto

Mon 21/9

7:20 p.m.-5:43 p.m.

2 stops27h 23m

C$ 1,247

LondonPorto

YXU - OPO

YXUOPO

London

Sat 22/8

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

2 stops42h 40m

Porto

Fri 4/9

9:00 a.m.-2:50 p.m.

2 stops34h 50m

C$ 1,297
Quickest round-trip

LondonPorto

YXU - OPO

YXUOPO

London

Fri 4/9

5:40 a.m.-7:10 a.m.

2 stops20h 30m

Porto

Sat 12/9

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

2 stops14h 20m

C$ 1,481

LondonPonta Delgada

YXU - PDL

YXUPDL

London

Mon 5/10

6:10 a.m.-6:35 p.m.

3 stops32h 25m

Ponta Delgada Nordela

Mon 12/10

9:50 p.m.-5:20 a.m.

3 stops35h 30m

C$ 1,635

LondonFaro

YXU - FAO

YXUFAO

London

Mon 5/10

5:40 a.m.-5:20 p.m.

2 stops30h 40m

Faro

Thu 8/10

3:55 p.m.-5:45 p.m.

2 stops54h 50m

C$ 1,656

LondonPorto

YXU - OPO

YXUOPO

London

Sat 22/8

5:55 p.m.-10:00 p.m.

2 stops47h 05m

Porto

Fri 4/9

8:55 p.m.-1:50 p.m.

3 stops45h 55m

C$ 1,691
Cheapest one-way

LondonFaro

YXU - FAO

YXUFAO

London

Sat 12/9

6:10 a.m.-3:00 p.m.

3 stops51h 50m

C$ 644

Flights are sorted by cheapest round-trip flights first.

Deals found on 29/7

Showing 1-10 of 16 resultsSorted by cheapest first
1
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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 12h 30m. Air Canada provides one of the quickest options available for as low as C$ 779. There are 5877 km between London, Ontario and Portugal.

  • 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 - Porto or London - Faro 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

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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.

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