Cheap flights from St. John's to London Heathrow Airport from £278

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 30/11. Fares are subject to change and may not be available on all flights or dates of travel.
YYT — LHR
16 Nov — 23 Nov1
1 adult
1 adult, Economy

Find 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 17 October 2025.

Sun 30/1107:30YYT - LHR
1 stop9h 35mAir Canada
Sun 7/1213:00LHR - YYT
1 stop14h 03mAir Canada
Deal found 16/10£517
Mon 1/1207:30YYT - LHR
1 stop9h 35mAir Canada
Mon 8/1213:00LHR - YYT
1 stop16h 03mAir Canada
Deal found 17/10£521
Sun 9/1120:55YYT - LHR
1 stop20h 10mAir Canada
Sun 16/1106:50LHR - YYT
2 stops21h 36mAir Canada
Deal found 15/10£522
Thu 16/1014:55YYT - LHR
1 stop26h 35mAir Canada
Thu 23/1012:40LHR - YYT
1 stop25h 03mAir Canada
Deal found 15/10£530
Fri 28/1113:30YYT - LHR
1 stop18h 20mMultiple Airlines
Tue 16/1209:00LHR - YYT
1 stop18h 00mMultiple Airlines
Deal found 16/10£563
Fri 28/1110:15YYT - LHR
2 stops19h 35mAir Canada
Tue 16/1213:25LHR - YYT
1 stop15h 01mAir Canada
Deal found 16/10£566
Thu 23/1008:45YYT - LHR
2 stops18h 05mUnited Airlines
Mon 27/1007:55LHR - YYT
2 stops20h 08mUnited Airlines
Deal found 15/10£578
Tue 16/1207:30YYT - LHR
1 stop9h 35mAir Canada
Sun 28/1213:25LHR - YYT
2 stops23h 40mAir Canada
Deal found 16/10£623

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 17 October 2025.

Round-trip from

£517

One-way from

£278

Popular in

December

Cheapest in

March

Average price

£578
Air Canada
  • Air Canada
  • 30/11-7/12
  • 2 total stops
  • 23h 38m total
  • St. John's to London
30/11
  • 30/11
  • 3 total stops
  • 27h 00m total
  • St. John's to London
Highest demand for flights based on searches. 2% potential increase in price (£14 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease (£15 potential savings vs. average return price).
Average for round-trip flights in October 2025

Cheapflights Fare Finder

 
Customise 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 858,174 searches. Data last updated 17 October 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

Sun 30/11

07:30-20:35

1 stop9h 35m

London Heathrow

Sun 7/12

13:00-23:33

1 stop14h 03m

£517

St. John'sLondon

YYT - LHR

YYTLHR

St John's

Mon 1/12

07:30-20:35

1 stop9h 35m

London Heathrow

Mon 8/12

13:00-01:33

1 stop16h 03m

£521

St. John'sLondon

YYT - LHR

YYTLHR

St John's

Sun 9/11

20:55-07:10

2 stops30h 45m

London Heathrow

Sun 16/11

06:50-00:56

2 stops21h 36m

£522

St. John'sLondon

YYT - LHR

YYTLHR

St John's

Tue 3/3

07:30-20:35

1 stop9h 35m

London Heathrow

Wed 11/3

09:05-00:56

2 stops42h 21m

£523

St. John'sLondon

YYT - LHR

YYTLHR

St John's

Thu 13/11

07:30-07:10

2 stops20h 10m

London Heathrow

Thu 20/11

13:25-09:35

2 stops23h 40m

£530

St. John'sLondon

YYT - LHR

YYTLHR

St John's

Tue 11/11

09:45-12:50

1 stop23h 35m

£288

St. John'sLondon

YYT - LHR

YYTLHR

St John's

Sat 29/11

06:20-21:35

3 stops35h 45m

£310

St. John'sLondon

YYT - LHR

YYTLHR

St John's

Tue 11/11

06:20-17:30

3 stops31h 40m

£313

St. John'sLondon

YYT - LHR

YYTLHR

St John's

Sun 30/11

17:40-22:40

2 stops25h 30m

£316

St. John'sLondon

YYT - LHR

YYTLHR

St John's

Thu 6/11

06:20-17:30

3 stops31h 40m

£372

Flights are sorted by cheapest return flights first.

Deals found on 15/10

Showing 1-10 of 13 results
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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 return 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 £323). Flying from St. John's to London Heathrow Airport in December is currently the most expensive (average of £662). 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 for a return flight 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 17 October 2025.
Read reviews from past customers who have flown with 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.

Boarding

7.3

Food

6.3

Overall

7.1

Crew

7.8

Comfort

7.1

Entertainment

6.8

Reviews

1 / 20
2.0
Mediocre

robert,Sept 2025

YEG - YVR

There was nothing that I liked about air canada. My experience was terrible.

Boarding

7.3

Food

6.3

Overall

7.1

Crew

7.8

Comfort

7.1

Entertainment

6.8

Reviews

1 / 20
2.0
Mediocre

robert,Sept 2025

YEG - YVR

There was nothing that I liked about air canada. My experience was terrible.

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?

    For a flight from St. John's to London Heathrow, you will be flying from St John's. St John's (YYT) is just 4.2 mi from the center of the city. St John's is the only St. John's airport and it handles 0 outbound flights to London Heathrow per day. 1 airline has flights to London Heathrow from St John's on a regular basis.

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

    Airlines like Air Canada fly from St. John's to London Heathrow Airport in about 9h 35m. The time it takes to get you to your destination can typically vary by up to . Airlines will cover a distance of 2307 mi.

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

    Currently priced at £504, Air Canada will fly you from St. John's to London Heathrow Airport and back. In addition to Air Canada, many other airlines offer competitively priced options for your trip. This flight start at 20% lower than the current average price 3 months from now.

  • 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 holiday 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 £323). Flying from St. John's to London Heathrow Airport in December is currently the most expensive (average of £662). 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
Milton Keynes
Croydon
Slough
Gatwick
Hounslow
Northampton
Luton
Wembley
Deal
Ilford
Crawley
Hayes
Watford
Winchester
Swindon
Chichester
Romford
Ipswich
Brentford
Dartford

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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 858,174 searches. Data last updated 17 October 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest£504Average£665FlexibilityNo 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?

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

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

Yes! Start tracking prices for St. John's to Heathrow flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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