Cheap flights from London Heathrow Airport to St. John's from £371

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 13/10. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — YYT
25 Aug — 1 Sep1
1 adult

Cheapflights Tip: The best prices from London Heathrow to St John's are usually found in February or January, booked 59 days in advance, depart on a Wednesday or Tuesday and return on a Monday

Cheap flight deals from Heathrow to St. John's

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to St. John's (YYT). 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 20 August 2025.

Round-trip from

£504

One-way from

£371

Popular in

December

Cheapest in

February

Average price

£644
Air Canada
  • Air Canada
  • 16/9-29/9
  • 2 total stops
  • 28h 44m total
  • London to St. John's
13/10
  • 13/10
  • 1 total stop
  • 23h 33m total
  • London to St. John's
Highest demand for flights based on searches. 7% potential increase in price (£39 potential increase over avg. return price).
Cheapest flight prices on average. 4% potential price decrease (£20 potential savings vs. average return price).
Average for round-trip flights in August 2025

Find flight deals from Heathrow to St. John's

Cheapest flights from Heathrow to St. John's
Explore the most affordable flight options available from Heathrow to St. John's. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 20 August 2025.

Tue 16/909:30LHR - YYT
1 stop18h 39mAir Canada
Mon 29/907:25YYT - LHR
1 stop10h 05mAir Canada
Deal found 20/8£504
Mon 1/909:30LHR - YYT
1 stop31h 04mAir Canada
Mon 8/914:55YYT - LHR
1 stop26h 35mAir Canada
Deal found 18/8£524
Sat 30/817:40LHR - YYT
1 stop20h 03mAir Canada
Sat 20/917:55YYT - LHR
2 stops47h 35mAir Canada
Deal found 19/8£533
Fri 19/912:40LHR - YYT
1 stop13h 13mAir Canada
Fri 26/919:15YYT - LHR
1 stop22h 15mAir Canada
Deal found 20/8£538
Sat 13/909:30LHR - YYT
1 stop18h 39mAir Canada
Fri 26/907:25YYT - LHR
1 stop10h 05mAir Canada
Deal found 19/8£539
Fri 5/912:40LHR - YYT
1 stop13h 13mAir Canada
Fri 12/907:25YYT - LHR
1 stop10h 05mAir Canada
Deal found 19/8£558
Mon 6/1006:20LHR - YYT
2 stops20h 06mMultiple Airlines
Wed 8/1000:30YYT - LHR
1 stop8h 30mMultiple Airlines
Deal found 18/8£563
Thu 2/1006:20LHR - YYT
1 stop8h 53mMultiple Airlines
Wed 8/1000:30YYT - LHR
1 stop8h 30mMultiple Airlines
Deal found 18/8£564

Cheapflights Fare Finder

 
Customise your flight search to find flights from Heathrow to St. John's 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 20 August 2025.
Use the filters below to find and compare flights from London Heathrow Airport to St. John's that are best for you.

Fly from

Heathrow

Fly to

St. John's

Route

Depart

Return

Price

LondonSt. John's

LHR - YYT

LHRYYT

London Heathrow

Mon 1/9

09:30-13:04

1 stop31h 04m

St John's

Mon 8/9

14:55-21:00

1 stop26h 35m

£524

LondonSt. John's

LHR - YYT

LHRYYT

London Heathrow

Sat 30/8

17:40-10:13

1 stop20h 03m

St John's

Sat 20/9

17:55-21:00

2 stops47h 35m

£533

LondonSt. John's

LHR - YYT

LHRYYT

London Heathrow

Fri 19/9

12:40-22:23

1 stop13h 13m

St John's

Fri 26/9

19:15-21:00

1 stop22h 15m

£538

LondonSt. John's

LHR - YYT

LHRYYT

London Heathrow

Sat 13/9

09:30-00:39

1 stop18h 39m

St John's

Fri 26/9

07:25-21:00

1 stop10h 05m

£539

LondonSt. John's

LHR - YYT

LHRYYT

London Heathrow

Fri 5/9

12:40-22:23

1 stop13h 13m

St John's

Fri 12/9

07:25-21:00

1 stop10h 05m

£558

LondonSt. John's

LHR - YYT

LHRYYT

London Heathrow

Mon 6/10

06:20-22:56

2 stops20h 06m

St John's

Wed 8/10

00:30-12:30

1 stop8h 30m

£563

LondonSt. John's

LHR - YYT

LHRYYT

London Heathrow

Thu 2/10

06:20-11:43

1 stop8h 53m

St John's

Wed 8/10

00:30-12:30

1 stop8h 30m

£564

LondonSt. John's

LHR - YYT

LHRYYT

London Heathrow

Wed 1/10

06:50-17:09

2 stops13h 49m

St John's

Mon 13/10

05:50-06:30

2 stops21h 10m

£567

LondonSt. John's

LHR - YYT

LHRYYT

London Heathrow

Mon 25/8

21:10-11:49

1 stop18h 09m

£437

LondonSt. John's

LHR - YYT

LHRYYT

London Heathrow

Thu 6/11

13:20-23:05

3 stops37h 15m

£448

Flights are sorted by cheapest return flights first.

Deals found on 19/8

Showing 1-10 of 17 results
1
2

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

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

How far ahead should I book a flight from London Heathrow Airport to St. John's?

Use this chart to determine the optimal time to book a return flight from Heathrow to St. John's. Price data was last updated on 8 August 2025.

The best time to book flights from London Heathrow Airport to St. John's is 59 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, August is the cheapest month in which you can book a flight from London Heathrow Airport to St. John's (average of £420). Flying from London Heathrow Airport to St. John's in December is currently the most expensive (average of £806). 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 LHR to YYT?

Find hourly flight availability from Heathrow to St. John's. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 20 August 2025.

When flying from London Heathrow Airport to St. John's, the time of day you fly usually plays a role in the price. Save by searching for a flight at midday, which can drop the price by up to 5% versus a flight in the morning.

Reviews of airlines servicing St. John's

Get insights into the airlines that provide service to St. John's. 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 St. John's. Reviews last updated 20 August 2025.
See what other customers who have flown with WestJet, Air Canada, andLufthansa from London Heathrow Airport to St. John's have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Comfort

7.0

Entertainment

6.1

Food

6.2

Boarding

7.4

Crew

7.9

Overall

7.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

YYJ - YVR

everything was good except we were so delayed we had to sleep on the floor in the vancouver airport … we were stranded there for 12 hours, no vouchers, no compensation, just a cold floor and we arrived at our final destination the following afternoon

Comfort

7.0

Entertainment

6.1

Food

6.2

Boarding

7.4

Crew

7.9

Overall

7.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

YYJ - YVR

everything was good except we were so delayed we had to sleep on the floor in the vancouver airport … we were stranded there for 12 hours, no vouchers, no compensation, just a cold floor and we arrived at our final destination the following afternoon

Comfort

7.0

Entertainment

6.1

Food

6.2

Boarding

7.4

Crew

7.9

Overall

7.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

YYJ - YVR

everything was good except we were so delayed we had to sleep on the floor in the vancouver airport … we were stranded there for 12 hours, no vouchers, no compensation, just a cold floor and we arrived at our final destination the following afternoon

Comfort

7.0

Entertainment

6.1

Food

6.2

Boarding

7.4

Crew

7.9

Overall

7.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

YYJ - YVR

everything was good except we were so delayed we had to sleep on the floor in the vancouver airport … we were stranded there for 12 hours, no vouchers, no compensation, just a cold floor and we arrived at our final destination the following afternoon

Related info for your journey

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

    Located just 4.2 mi from the city center, St John's is the airport most travelers will use when flying to St. John's from London Heathrow. Booking flights from London Heathrow to St John's (YYT) should be relatively easy as there are 0 daily inbound flights from London Heathrow from 3 different airlines.

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

    Airlines like Air Canada fly from London Heathrow Airport to St. John's in about 31h 04m. 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 are the cheapest airlines flying from London Heathrow Airport to St. John's round-trip?

    Our cheapest airline available from London Heathrow Airport to St. John's is WestJet. Our recent data shows that you can find tickets from as low as £305 on this airline. Additional options worth looking into are Air Canada and Lufthansa, starting at £476 and £483 round-trip. These flights start at 51% lower than the current average price 3 months from now.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Heathrow to St. John's 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 London Heathrow Airport to St. John's?

    Currently, August is the cheapest month in which you can book a flight from London Heathrow Airport to St. John's (average of £420). Flying from London Heathrow Airport to St. John's in December is currently the most expensive (average of £806). 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

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Alternative routes for Heathrow to St. John's

See prices for flight routes from nearby airports that may be better suited for you.

Top 3 airlines flying from Heathrow to St. John's

Discover the top 3 airlines that operate flights from Heathrow to St. John's. 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 20 August 2025.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapest£305Average£550FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Air CanadaCheapest£476Average£604FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
LufthansaCheapest£483Average£605FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights

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

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from Heathrow to St. John's flexibly with Cheapflights today.

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

Not ready to book yet? You can track prices for flights from Heathrow to St. John's on Cheapflights with our Price Alert feature and get notified when better prices are available.

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