Cheap flights from St. John's to London Heathrow Airport from C$ 368

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 10/9. Fares are subject to change and may not be available on all flights or dates of travel.
YYT — LHR
3 Aug — 10 Aug1
1 adult

Cheap 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 29 July 2025.

Round-trip from

C$ 672

One-way from

C$ 368

Popular in

December

Cheapest in

March

Average price

C$ 1,379
10/9-18/9
  • 10/9-18/9
  • 2 total stops
  • 17h 03m total
  • St. John's to London
10/9
  • 10/9
  • 1 total stop
  • 17h 35m total
  • St. John's to London
Highest demand for flights based on searches. 2% potential increase in price (C$ 43 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease (C$ 49 potential savings vs. average RT price).
Average for round-trip flights in July 2025

Find flight deals from St. John's to Heathrow

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 29 July 2025.

Wed 10/912:30 a.m.YYT - LHR
1 stop8h 10mMultiple Airlines
Thu 18/96:20 a.m.LHR - YYT
1 stop8h 53mMultiple Airlines
Deal found 28/7C$ 672
Fri 26/95:50 a.m.YYT - LHR
2 stops20h 35mUnited Airlines
Fri 17/107:25 a.m.LHR - YYT
2 stops21h 21mUnited Airlines
Deal found 29/7C$ 933
Fri 5/95:50 a.m.YYT - LHR
2 stops21h 25mLufthansa
Fri 12/912:05 p.m.LHR - YYT
1 stop16h 41mLufthansa
Deal found 29/7C$ 984
Mon 22/95:50 a.m.YYT - LHR
2 stops21h 10mAir Canada
Mon 13/106:50 a.m.LHR - YYT
2 stops13h 49mAir Canada
Deal found 29/7C$ 1,139

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 29 July 2025.
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 10/9

12:30 a.m.-12:10 p.m.

1 stop8h 10m

London Heathrow

Thu 18/9

6:20 a.m.-11:43 a.m.

1 stop8h 53m

C$ 672

St. John'sLondon

YYT - LHR

YYTLHR

St John's

Fri 26/9

5:50 a.m.-5:55 a.m.

2 stops20h 35m

London Heathrow

Fri 17/10

7:25 a.m.-1:16 a.m.

2 stops21h 21m

C$ 933

St. John'sLondon

YYT - LHR

YYTLHR

St John's

Fri 5/9

5:50 a.m.-6:45 a.m.

2 stops21h 25m

London Heathrow

Fri 12/9

12:05 p.m.-1:16 a.m.

1 stop16h 41m

C$ 984

St. John'sLondon

YYT - LHR

YYTLHR

St John's

Mon 22/9

5:50 a.m.-6:30 a.m.

2 stops21h 10m

London Heathrow

Mon 13/10

6:50 a.m.-5:09 p.m.

2 stops13h 49m

C$ 1,139

St. John'sLondon

YYT - LHR

YYTLHR

St John's

Wed 10/9

12:30 a.m.-9:35 p.m.

1 stop17h 35m

C$ 368

St. John'sLondon

YYT - LHR

YYTLHR

St John's

Thu 11/9

7:10 a.m.-12:05 p.m.

1 stop25h 25m

C$ 838

St. John'sLondon

YYT - LHR

YYTLHR

St John's

Fri 12/9

8:45 a.m.-10:20 a.m.

2 stops22h 05m

C$ 995

St. John'sLondon

YYT - LHR

YYTLHR

St John's

Wed 13/8

5:50 a.m.-10:00 a.m.

1 stop24h 40m

C$ 1,236

St. John'sLondon

YYT - LHR

YYTLHR

St John's

Thu 14/8

2:10 p.m.-12:50 p.m.

2 stops19h 10m

C$ 1,410

Flights are sorted by cheapest round-trip flights first.

Deals found on 28/7

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, January is the cheapest month in which you can book a flight from St. John's to London Heathrow Airport (average of C$ 560). Flying from St. John's to London Heathrow Airport in July is currently the most expensive (average of C$ 857). 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.

What is the cheapest time of day to fly from YYT to LHR?

Find hourly flight availability from St. John's to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 29 July 2025.

A simple way to save on the total cost of your ticket is to fly from St. John's to London Heathrow Airport in the evening. If you’re flexible enough to do this you can expect to save up to 33% on your trip compared to booking a flight at noon.

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.

Toronto (YYZ) is the most affordable 1-stop option, with an average round-trip price of C$ 1,045.

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 Toronto (YYZ) have the shortest average one-way travel time for 1-stop routes: 9h 07m.

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 Montreal (YUL) offer the fastest connection on this route, with an average layover time of 2h 04m.

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 29 July 2025.
Read reviews from past customers who have flown United Airlines,WestJet, andAir 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.

Food

6.6

Crew

8.1

Boarding

7.7

Overall

7.4

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

YVR - SFO

It was a good experience. The flight took 45 minutes longer to fly and all passengers had to wait inside the plane till the technical issue was fixed. Overall it was a good experience.

Food

6.6

Crew

8.1

Boarding

7.7

Overall

7.4

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

YVR - SFO

It was a good experience. The flight took 45 minutes longer to fly and all passengers had to wait inside the plane till the technical issue was fixed. Overall it was a good experience.

Food

6.6

Crew

8.1

Boarding

7.7

Overall

7.4

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

YVR - SFO

It was a good experience. The flight took 45 minutes longer to fly and all passengers had to wait inside the plane till the technical issue was fixed. Overall it was a good experience.

Food

6.6

Crew

8.1

Boarding

7.7

Overall

7.4

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

YVR - SFO

It was a good experience. The flight took 45 minutes longer to fly and all passengers had to wait inside the plane till the technical issue was fixed. Overall it was a good experience.

Food

6.6

Crew

8.1

Boarding

7.7

Overall

7.4

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

YVR - SFO

It was a good experience. The flight took 45 minutes longer to fly and all passengers had to wait inside the plane till the technical issue was fixed. Overall it was a good experience.

Food

6.6

Crew

8.1

Boarding

7.7

Overall

7.4

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

YVR - SFO

It was a good experience. The flight took 45 minutes longer to fly and all passengers had to wait inside the plane till the technical issue was fixed. Overall it was a good experience.

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.

  • What are the cheapest airlines flying from St. John's to London Heathrow Airport round-trip?

    Flying on United Airlines is currently your cheapest option to London Heathrow Airport, with prices starting at C$ 933. Additional round-trip tickets that might be worth considering are offered by Lufthansa and Air Canada, with the lowest prices starting at C$ 984 and C$ 1,139, respectively. United Airlines is 20% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from St. John's to London Heathrow Airport one-way?

    For one-way options, check prices for WestJet. According to our data, you can fly for as low as C$ 838. Users have also found prices from C$ 995 and C$ 1,236 on TAP AIR PORTUGAL and Air Canada, respectively.

  • 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, January is the cheapest month in which you can book a flight from St. John's to London Heathrow Airport (average of C$ 560). Flying from St. John's to London Heathrow Airport in July is currently the most expensive (average of C$ 857). 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
Brentford
Sutton
Hounslow
Slough
Marlow
Leamington Spa
Milton Keynes
Romford
Watford
Bromley
Luton
Bedford
Southall

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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.

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 29 July 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 904AverageC$ 1,109FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

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

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