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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 12/5. Fares are subject to change and may not be available on all flights or dates of travel.
YYT — LHR
21 Feb — 28 Feb1
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 22 January 2026.

Mon 26/110:15
YYT
-
LHR
1 stop30h 50m
Air Canada
Tue 3/209:00
LHR
-
YYT
1 stop28h 05m
Air Canada
Deal found 21/1£508
Tue 10/307:30
YYT
-
LHR
1 stop10h 35m
Air Canada
Tue 17/311:10
LHR
-
YYT
1 stop14h 48m
Air Canada
Deal found 22/1£509
Mon 26/107:30
YYT
-
LHR
2 stops20h 10m
Multiple Airlines
Tue 3/213:25
LHR
-
YYT
1 stop31h 26m
Multiple Airlines
Deal found 21/1£511
Mon 2/207:30
YYT
-
LHR
1 stop9h 35m
Air Canada
Mon 9/206:50
LHR
-
YYT
2 stops14h 01m
Air Canada
Deal found 20/1£518
Wed 21/118:10
YYT
-
LHR
1 stop13h 40m
Air Canada
Wed 28/109:00
LHR
-
YYT
2 stops19h 41m
Air Canada
Deal found 21/1£520
Tue 10/307:30
YYT
-
LHR
1 stop10h 35m
Air Canada
Wed 18/309:00
LHR
-
YYT
1 stop17h 00m
Air Canada
Deal found 21/1£521

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 22 January 2026.

Round-trip from

£509

One-way from

£278

Popular in

November

Cheapest in

March

Average price

£560
Air Canada
  • Air Canada
  • 10/3-17/3
  • 2 total stops
  • 25h 23m total
  • St. John's to London
Search Deals
12/5
  • 12/5
  • 2 total stops
  • 19h 00m total
  • St. John's to London
Search Deals
Highest demand for flights based on searches. 25% potential increase in price (£181 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£27 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 22 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

Tue 10/3

07:30-20:35

1 stop10h 35m

London Heathrow

Tue 17/3

11:10-23:28

1 stop14h 48m

£509

St. John'sLondon

YYT - LHR

YYTLHR

St John's

Tue 10/3

07:30-20:35

1 stop10h 35m

London Heathrow

Wed 18/3

13:25-09:35

2 stops22h 40m

£523

St. John'sLondon

YYT - LHR

YYTLHR

St John's

Mon 6/4

07:30-21:00

1 stop10h 00m

London Heathrow

Wed 15/4

12:40-20:13

1 stop11h 03m

£535

St. John'sLondon

YYT - LHR

YYTLHR

St John's

Sun 5/4

20:55-21:00

1 stop20h 35m

London Heathrow

Tue 14/4

12:40-23:28

1 stop14h 18m

£535

St. John'sLondon

YYT - LHR

YYTLHR

St John's

Mon 27/4

18:15-10:00

1 stop12h 15m

London Heathrow

Mon 18/5

12:40-23:28

1 stop14h 18m

£545

St. John'sLondon

YYT - LHR

YYTLHR

St John's

Mon 27/4

13:25-06:30

2 stops13h 35m

London Heathrow

Mon 18/5

09:30-13:28

2 stops31h 28m

£555

St. John'sLondon

YYT - LHR

YYTLHR

St John's

Sat 23/5

07:30-21:00

1 stop10h 00m

London Heathrow

Wed 3/6

20:05-23:28

2 stops30h 53m

£561

St. John'sLondon

YYT - LHR

YYTLHR

St John's

Sat 4/4

20:55-21:00

1 stop20h 35m

London Heathrow

Wed 15/4

12:40-20:13

1 stop11h 03m

£561

St. John'sLondon

YYT - LHR

YYTLHR

St John's

Sat 4/4

20:55-21:00

1 stop20h 35m

London Heathrow

Tue 14/4

12:40-20:13

1 stop11h 03m

£563

St. John'sLondon

YYT - LHR

YYTLHR

St John's

Sat 16/5

15:00-12:40

2 stops18h 10m

£308

Flights are sorted by cheapest return flights first.

Deals found on 21/1

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 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 November is currently the most expensive (average of £1,091). 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.

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 22 January 2026.
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.
Air Canada
7.1
Good
10,649 reviews
Check prices

Food

6.3

Comfort

7.1

Entertainment

6.8

Crew

7.8

Boarding

7.3

Overall

7.1

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
10,649 reviews
Air Canada
7.1
Good
10,649 reviews
Check prices

Food

6.3

Comfort

7.1

Entertainment

6.8

Crew

7.8

Boarding

7.3

Overall

7.1

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?

    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 10h 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 £598, 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 14% 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 November is currently the most expensive (average of £1,091). 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
Luton
Croydon
Northampton
Wembley
Gatwick
Slough
Hounslow
Ilford
Brentford
Hayes
Colchester
Watford
Swindon
Crawley
Bedford
Kingston upon Thames
Chelmsford
Eastbourne
Romford

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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

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 22 January 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest£598Average£848FlexibilityNo 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?

When you search for this flight from St. John's to Heathrow, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from St. John's to Heathrow.

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

Yes! Cheapflights helps users easily find flights from St. John's to Heathrow with no change fees.

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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