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Cheap flights from St. John's to London Heathrow Airport from C$ 481

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 6/5. Fares are subject to change and may not be available on all flights or dates of travel.
YYT — LHR
1 Mar — 8 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from St. John's to Heathrow

Enter your travel dates to find the best prices.

Cheapest flights from St. John's to Heathrow
Explore the most affordable flight options available from St. John's to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 January 2026.

Mon 11/511:05 a.m.
YYT
-
LHR
1 stop30h 25m
Air Canada
Fri 29/56:00 a.m.
LHR
-
YYT
2 stops22h 11m
Air Canada
Deal found 28/1C$ 1,032
Wed 6/58:25 p.m.
YYT
-
LHR
1 stop21h 05m
Air Canada
Wed 10/612:40 p.m.
LHR
-
YYT
1 stop10h 33m
Air Canada
Deal found 28/1C$ 1,047
Wed 6/58:25 p.m.
YYT
-
LHR
1 stop21h 05m
Air Canada
Mon 11/512:40 p.m.
LHR
-
YYT
1 stop10h 33m
Air Canada
Deal found 28/1C$ 1,049
Wed 15/712:30 a.m.
YYT
-
LHR
1 stop17h 35m
Multiple Airlines
Sun 2/86:20 a.m.
LHR
-
YYT
2 stops20h 05m
Multiple Airlines
Deal found 28/1C$ 1,080
Wed 8/72:05 p.m.
YYT
-
LHR
2 stops15h 00m
Air Canada
Mon 27/712:40 p.m.
LHR
-
YYT
1 stop14h 18m
Air Canada
Deal found 28/1C$ 1,087

Find flight deals from St. John's to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from St. John's (YYT) to Heathrow (LHR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 30 January 2026.

Round-trip from

C$ 1,032

One-way from

C$ 481

Popular in

November

Cheapest in

March

Average price

C$ 1,017
Air Canada
  • Air Canada
  • 11/5-29/5
  • 3 total stops
  • 52h 36m total
  • St. John's to London
Search Deals
6/5
  • 6/5
  • 2 total stops
  • 27h 05m total
  • St. John's to London
Search Deals
Highest demand for flights based on searches. 25% potential increase in price (C$ 597 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (C$ 89 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. John's to Heathrow 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 30 January 2026.
Use the filters below to find and compare flights from St. John's to London Heathrow Airport that are best for you.

Fly from

St. John's

Fly to

Heathrow

Route

Depart

Return

Price

St. John'sLondon

YYT - LHR

YYTLHR

St John's

Wed 6/5

8:25 p.m.-9:00 p.m.

1 stop21h 05m

London Heathrow

Wed 10/6

9:30 a.m.-7:43 p.m.

2 stops13h 43m

C$ 1,051

St. John'sLondon

YYT - LHR

YYTLHR

St John's

Mon 4/5

7:30 a.m.-9:00 p.m.

1 stop10h 00m

London Heathrow

Sun 10/5

12:40 p.m.-11:28 p.m.

1 stop14h 18m

C$ 1,101

St. John'sLondon

YYT - LHR

YYTLHR

St John's

Tue 28/4

8:55 p.m.-9:00 p.m.

1 stop20h 35m

London Heathrow

Thu 14/5

12:40 p.m.-7:43 p.m.

1 stop10h 33m

C$ 1,101

St. John'sLondon

YYT - LHR

YYTLHR

St John's

Tue 28/4

7:30 a.m.-9:00 p.m.

1 stop10h 00m

London Heathrow

Fri 8/5

12:40 p.m.-7:43 p.m.

1 stop10h 33m

C$ 1,101

St. John'sLondon

YYT - LHR

YYTLHR

St John's

Mon 4/5

7:30 a.m.-9:00 p.m.

1 stop10h 00m

London Heathrow

Wed 13/5

12:40 p.m.-7:43 p.m.

1 stop10h 33m

C$ 1,101

St. John'sLondon

YYT - LHR

YYTLHR

St John's

Sun 3/5

8:25 p.m.-9:00 p.m.

1 stop21h 05m

London Heathrow

Wed 13/5

12:40 p.m.-11:28 p.m.

1 stop14h 18m

C$ 1,101

St. John'sLondon

YYT - LHR

YYTLHR

St John's

Tue 28/4

8:55 p.m.-9:00 p.m.

1 stop20h 35m

London Heathrow

Tue 12/5

12:40 p.m.-7:43 p.m.

1 stop10h 33m

C$ 1,101

St. John'sLondon

YYT - LHR

YYTLHR

St John's

Mon 1/6

8:25 p.m.-9:00 p.m.

1 stop21h 05m

London Heathrow

Mon 8/6

8:40 a.m.-12:16 p.m.

2 stops31h 06m

C$ 1,106

St. John'sLondon

YYT - LHR

YYTLHR

St John's

Wed 29/4

6:15 p.m.-10:00 a.m.

1 stop12h 15m

London Heathrow

Fri 8/5

9:30 a.m.-12:41 a.m.

1 stop18h 41m

C$ 1,109

St. John'sLondon

YYT - LHR

YYTLHR

St John's

Wed 29/4

6:15 p.m.-10:00 a.m.

1 stop12h 15m

London Heathrow

Mon 11/5

2:05 p.m.-12:16 p.m.

1 stop25h 41m

C$ 1,109

Flights are sorted by cheapest round-trip flights first.

Deals found on 29/1

Showing 1-10 of 20 results
1
2

Best time to book a flight from St. John's to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from St. John's 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 St. John's to London Heathrow Airport

What is the cheapest month to book a flight from St. John's to London Heathrow Airport?

Currently, June is the cheapest month in which you can book a flight from St. John's to London Heathrow Airport (average of C$ 587). Flying from St. John's to London Heathrow Airport in November is currently the most expensive (average of C$ 1,981). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from St. John's to London Heathrow Airport?

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Heathrow. Reviews last updated 30 January 2026.
Read reviews from past customers who have flown Air Canada from St. John's to London Heathrow Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Canada
7.1
Good
10,667 reviews
Check prices

Comfort

7.1

Entertainment

6.8

Overall

7.1

Crew

7.8

Food

6.3

Boarding

7.3

Reviews

1 / 20
4.0
Okay

Sugith,Jan 2026

YSB - YYZ

Left 2 hours late. Stuck on plane for an hour after boarding before take off.
Air Canada
7.1
Good
10,667 reviews
Air Canada
7.1
Good
10,667 reviews
Check prices

Comfort

7.1

Entertainment

6.8

Overall

7.1

Crew

7.8

Food

6.3

Boarding

7.3

Reviews

1 / 20
4.0
Okay

Sugith,Jan 2026

YSB - YYZ

Left 2 hours late. Stuck on plane for an hour after boarding before take off.

Related info for your journey

Find useful and relevant information for your journey from St. John's to Heathrow. 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 St. John's to London Heathrow?

    Most people fly from St John's (YYT) if they book a flight from St. John's to London Heathrow. On average, St John's has 0 outbound flights to London Heathrow per day from 1 airline. St John's is conveniently located just 6.7 km from St. John's’s city centre.

  • How long is the flight from St. John's to London Heathrow Airport?

    Air Canada can get you from St. John's to London Heathrow Airport in just under 21h 05m. Your travel time can differ by up to . There are 3713 km between St. John's and London Heathrow Airport.

  • What is the cheapest airline to fly from St. John's to London Heathrow Airport round-trip?

    Flying on Air Canada is currently your cheapest option to London Heathrow Airport, with prices starting at C$ 891. Air Canada is 30% cheaper than the average price of flights available within the next 90 days to this destination.

  • Can I find deals for flights from St. John's to Heathrow that include hotel bookings?

    Yes. In addition to deals on St. John's to Heathrow flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. John's to Heathrow?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. John's to Heathrow.

  • Can I find deals for business class flights from St. John's to Heathrow?

    Yes. Cheapflights offers flight deals from St. John's to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from St. John's to London Heathrow Airport?

    Currently, June is the cheapest month in which you can book a flight from St. John's to London Heathrow Airport (average of C$ 587). Flying from St. John's to London Heathrow Airport in November is currently the most expensive (average of C$ 1,981). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Sutton
Twickenham
Gatwick
Slough
Marlow
Cobham
Milton Keynes
Leamington Spa
Romford
Bedford
Watford
Luton
High Wycombe
Stratford-upon-Avon
Hounslow

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Alternative routes for St. John's to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
St. John's to Gatwick flights
St. John's to London City flights
St. John's to Luton flights

Top airline flying from St. John's to Heathrow

Discover the top airline that operate flights from St. John's to Heathrow. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 30 January 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 891AverageC$ 1,092FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

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How does Cheapflights help users find flights from St. John's to Heathrow?

Cheapflights helps you search for flights from St. John's to Heathrow via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from St. John's to Heathrow?

Millions of users choose and trust Cheapflights to book the best flight deals from St. John's to Heathrow for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from St. John's to Heathrow with no change fees?

Yes, we can. To see specific flights from St. John's to Heathrow with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from St. John's to Heathrow become cheaper?

Yes, Cheapflights offers price alerts on St. John's to Heathrow 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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