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Cheap flights from St. John's to London Heathrow Airport from C$ 344

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 7/10. Fares are subject to change and may not be available on all flights or dates of travel.
YYT — LHR
24 Aug — 31 Aug1
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 25 July 2026.

Mon 27/712:30 a.m.
YYT
-
LHR
1 stop11h 00m
Multiple Airlines
Mon 24/89:10 p.m.
LHR
-
YYT
1 stop18h 10m
Multiple Airlines
Deal found 20/7C$ 772
Fri 11/95:00 a.m.
YYT
-
LHR
1 stop27h 20m
Multiple Airlines
Sun 13/911:05 a.m.
LHR
-
YYT
2 stops33h 33m
Multiple Airlines
Deal found 23/7C$ 1,125
Tue 25/83:00 p.m.
YYT
-
LHR
2 stops21h 30m
Multiple Airlines
Mon 31/89:10 p.m.
LHR
-
YYT
1 stop18h 10m
Multiple Airlines
Deal found 24/7C$ 1,131
Sat 5/95:35 a.m.
YYT
-
LHR
2 stops20h 50m
United Airlines
Sat 12/97:45 a.m.
LHR
-
YYT
2 stops20h 18m
United Airlines
Deal found 25/7C$ 1,132
Fri 18/95:35 a.m.
YYT
-
LHR
2 stops20h 50m
United Airlines
Tue 22/98:00 a.m.
LHR
-
YYT
2 stops20h 03m
United Airlines
Deal found 21/7C$ 1,134
Wed 9/95:35 a.m.
YYT
-
LHR
2 stops20h 50m
United Airlines
Thu 17/98:00 a.m.
LHR
-
YYT
2 stops20h 03m
United Airlines
Deal found 21/7C$ 1,137
Wed 16/95:35 a.m.
YYT
-
LHR
2 stops25h 20m
United Airlines
Wed 23/911:05 a.m.
LHR
-
YYT
2 stops16h 58m
United Airlines
Deal found 20/7C$ 1,139
Mon 7/97:55 p.m.
YYT
-
LHR
2 stops30h 30m
United Airlines
Mon 14/912:15 p.m.
LHR
-
YYT
2 stops27h 28m
United Airlines
Deal found 24/7C$ 1,141
Thu 1/103:00 p.m.
YYT
-
LHR
2 stops22h 05m
Multiple Airlines
Tue 13/108:55 p.m.
LHR
-
YYT
2 stops29h 30m
Multiple Airlines
Deal found 24/7C$ 1,166
Sat 3/1012:30 a.m.
YYT
-
LHR
2 stops16h 05m
Multiple Airlines
Mon 12/109:10 p.m.
LHR
-
YYT
1 stop18h 10m
Multiple Airlines
Deal found 20/7C$ 1,176

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 25 July 2026.

Round-trip from

C$ 1,125

One-way from

C$ 344

Popular in

November

Cheapest in

June

Average price

C$ 1,107
11/9-13/9
  • 11/9-13/9
  • 3 total stops
  • 60h 53m total
  • St. John's to London
Search Deals
7/10
  • 7/10
  • 1 total stop
  • 9h 55m total
  • St. John's to London
Search Deals
Highest demand for flights based on searches. 18% potential increase in price (C$ 473 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (C$ 97 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
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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 25 July 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

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

St. John'sLondon

YYT - LHR

YYTLHR

St John's

Fri 11/9

5:35 a.m.-5:55 a.m.

2 stops20h 50m

London Heathrow

Tue 15/9

11:05 a.m.-12:33 a.m.

2 stops16h 58m

C$ 1,132

St. John'sLondon

YYT - LHR

YYTLHR

St John's

Sat 5/9

5:35 a.m.-5:55 a.m.

2 stops20h 50m

London Heathrow

Sat 12/9

7:45 a.m.-12:33 a.m.

2 stops20h 18m

C$ 1,132

St. John'sLondon

YYT - LHR

YYTLHR

St John's

Tue 22/9

5:35 a.m.-7:15 a.m.

2 stops22h 10m

London Heathrow

Tue 29/9

10:25 a.m.-12:33 a.m.

2 stops17h 38m

C$ 1,132

St. John'sLondon

YYT - LHR

YYTLHR

St John's

Fri 18/9

5:35 a.m.-5:55 a.m.

2 stops20h 50m

London Heathrow

Tue 22/9

8:00 a.m.-12:33 a.m.

2 stops20h 03m

C$ 1,132

St. John'sLondon

YYT - LHR

YYTLHR

St John's

Wed 2/9

6:05 p.m.-5:55 a.m.

2 stops32h 20m

London Heathrow

Sat 12/9

12:00 p.m.-12:13 p.m.

2 stops27h 43m

C$ 1,134

St. John'sLondon

YYT - LHR

YYTLHR

St John's

Wed 30/9

1:15 p.m.-7:15 a.m.

2 stops14h 30m

London Heathrow

Wed 7/10

12:15 p.m.-12:13 p.m.

2 stops27h 28m

C$ 1,134

St. John'sLondon

YYT - LHR

YYTLHR

St John's

Fri 16/10

1:15 p.m.-11:55 a.m.

2 stops19h 10m

London Heathrow

Fri 23/10

12:00 p.m.-12:13 p.m.

2 stops27h 43m

C$ 1,134

St. John'sLondon

YYT - LHR

YYTLHR

St John's

Wed 9/9

5:35 a.m.-5:55 a.m.

2 stops20h 50m

London Heathrow

Thu 17/9

8:00 a.m.-12:33 a.m.

2 stops20h 03m

C$ 1,137
Cheapest one-way

St. John'sLondon

YYT - LHR

YYTLHR

St John's

Wed 30/9

3:00 p.m.-8:20 p.m.

2 stops25h 50m

C$ 382

St. John'sLondon

YYT - LHR

YYTLHR

St John's

Fri 11/9

3:00 p.m.-8:20 p.m.

2 stops25h 50m

C$ 476

Flights are sorted by cheapest round-trip flights first.

Deals found on 24/7

Showing 1-10 of 17 resultsSorted by cheapest first
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’s the top layover airport for flights from St. John's to London Heathrow Airport?

Share of one-stop round-trip flights from St. John's to London Heathrow Airport chosen by Cheapflights users in the past 12 months, using the same layover each way.

Halifax (YHZ) – chosen by Cheapflights users on 83% of one-stop itineraries from St. John's to London Heathrow Airport on Cheapflights.

What’s the cheapest layover airport for flights from St. John's to London Heathrow Airport?

Average round-trip fare for 1-stop flights from St. John's to London Heathrow Airport, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Montreal (YUL) is the most affordable 1-stop option, with an average round-trip price of C$ 929.

What’s the fastest layover option from St. John's to London Heathrow Airport?

Shortest average travel time for 1-stop one-way flights from St. John's to London Heathrow Airport, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Halifax (YHZ) have the shortest average one-way travel time for 1-stop routes: 9h 48m.

Which airport typically offers the quickest layover for flights from St. John's to London Heathrow Airport?

Average layover duration for 1-stop one-way flights from St. John's to London Heathrow Airport, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Halifax (YHZ) offer the fastest connection on this route, with an average layover time of 2h 13m.

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 25 July 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
11,386 reviews
Check prices

Entertainment

6.8

Food

6.3

Comfort

7.1

Boarding

7.3

Crew

7.8

Overall

7.1

Reviews

1 / 20
8.0
Excellent

Tanis,Jul 2026

YVR - YXC

I needed assistance due to a knee injury and the staff at Air Canada from the checkin right to boarding the plane was incredible! Then on the plane although it was almost full they made it so I DID NOT have anyone seated next to me so I could put my legs up onto the edge of the seat which made things so much easier to travel the hour & a half flight! Very impressed!
Air Canada
7.1
Good
11,386 reviews
Air Canada
7.1
Good
11,386 reviews
Check prices

Entertainment

6.8

Food

6.3

Comfort

7.1

Boarding

7.3

Crew

7.8

Overall

7.1

Reviews

1 / 20
8.0
Excellent

Tanis,Jul 2026

YVR - YXC

I needed assistance due to a knee injury and the staff at Air Canada from the checkin right to boarding the plane was incredible! Then on the plane although it was almost full they made it so I DID NOT have anyone seated next to me so I could put my legs up onto the edge of the seat which made things so much easier to travel the hour & a half flight! Very impressed!

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?

    United Airlines can get you from St. John's to London Heathrow Airport in just under 20h 50m. 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$ 929. Air Canada is 35% 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.

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
Gatwick
Romford
Twickenham
Ilford
Bromley
Sutton
Luton
Slough
Marlow
Cobham
Hounslow
Leamington Spa
Northampton
Watford
High Wycombe
Stratford-upon-Avon
Moreton-in-Marsh

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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 25 July 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 929AverageC$ 1,343FlexibilityNo 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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