Find flights
When to book
Airlines
FAQs

Cheap flights from St. John's to London Heathrow Airport from C$ 361

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 13/7. Fares are subject to change and may not be available on all flights or dates of travel.
YYT — LHR
14 Jul — 21 Jul1
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 14 June 2026.

Wed 5/812:30 a.m.
YYT
-
LHR
1 stop13h 20m
Multiple Airlines
Wed 12/89:10 p.m.
LHR
-
YYT
1 stop18h 00m
Multiple Airlines
Deal found 13/6C$ 688
Mon 3/812:30 a.m.
YYT
-
LHR
1 stop16h 20m
Multiple Airlines
Wed 12/89:10 p.m.
LHR
-
YYT
1 stop18h 00m
Multiple Airlines
Deal found 12/6C$ 727
Mon 14/912:30 a.m.
YYT
-
LHR
1 stop9h 55m
Multiple Airlines
Thu 24/97:40 a.m.
LHR
-
YYT
2 stops18h 45m
Multiple Airlines
Deal found 12/6C$ 835
Mon 27/73:00 p.m.
YYT
-
LHR
2 stops21h 30m
Multiple Airlines
Mon 3/89:10 p.m.
LHR
-
YYT
1 stop18h 10m
Multiple Airlines
Deal found 12/6C$ 869
Wed 5/812:30 a.m.
YYT
-
LHR
1 stop16h 20m
Multiple Airlines
Thu 13/87:40 a.m.
LHR
-
YYT
2 stops18h 45m
Multiple Airlines
Deal found 9/6C$ 905
Mon 13/73:00 p.m.
YYT
-
LHR
2 stops20h 30m
Multiple Airlines
Mon 20/78:10 p.m.
LHR
-
YYT
1 stop19h 10m
Multiple Airlines
Deal found 13/6C$ 911
Wed 10/63:00 p.m.
YYT
-
LHR
2 stops19h 25m
Multiple Airlines
Wed 17/63:50 p.m.
LHR
-
YYT
1 stop23h 20m
Multiple Airlines
Deal found 9/6C$ 937
Mon 20/74:00 p.m.
YYT
-
LHR
2 stops37h 40m
Multiple Airlines
Wed 5/83:50 p.m.
LHR
-
YYT
1 stop23h 20m
Multiple Airlines
Deal found 10/6C$ 979
Wed 10/612:30 a.m.
YYT
-
LHR
1 stop9h 55m
Multiple Airlines
Thu 18/63:50 p.m.
LHR
-
YYT
2 stops34h 35m
Multiple Airlines
Deal found 10/6C$ 1,118

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 14 June 2026.

Round-trip from

C$ 688

One-way from

C$ 361

Popular in

June

Cheapest in

September

Average price

C$ 1,905
5/8-12/8
  • 5/8-12/8
  • 2 total stops
  • 31h 20m total
  • St. John's to London
Search Deals
13/7
  • 13/7
  • 1 total stop
  • 16h 20m total
  • St. John's to London
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (C$ 141 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 70 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

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 14 June 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

St. John'sLondon

YYT - LHR

YYTLHR

St John's

Wed 5/8

12:30 a.m.-7:25 p.m.

1 stop15h 25m

London Heathrow

Wed 12/8

6:40 p.m.-11:40 a.m.

2 stops20h 30m

C$ 824

St. John'sLondon

YYT - LHR

YYTLHR

St John's

Thu 1/10

6:10 p.m.-7:15 a.m.

2 stops33h 35m

London Heathrow

Thu 22/10

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

2 stops40h 58m

C$ 1,130
Quickest round-trip

St. John'sLondon

YYT - LHR

YYTLHR

St John's

Tue 15/9

1:15 p.m.-8:20 a.m.

2 stops15h 35m

London Heathrow

Thu 24/9

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

2 stops20h 18m

C$ 1,132

St. John'sLondon

YYT - LHR

YYTLHR

St John's

Wed 16/9

6:10 p.m.-9:20 p.m.

2 stops23h 40m

London Heathrow

Sun 20/9

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

2 stops20h 18m

C$ 1,132

St. John'sLondon

YYT - LHR

YYTLHR

St John's

Fri 25/9

1:15 p.m.-6:55 a.m.

2 stops38h 10m

London Heathrow

Mon 5/10

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

2 stops20h 18m

C$ 1,133

St. John'sLondon

YYT - LHR

YYTLHR

St John's

Wed 11/11

5:05 a.m.-8:25 a.m.

2 stops23h 50m

London Heathrow

Thu 26/11

9:10 a.m.-12:56 a.m.

2 stops19h 16m

C$ 1,133

St. John'sLondon

YYT - LHR

YYTLHR

St John's

Fri 18/9

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

2 stops22h 10m

London Heathrow

Mon 5/10

7:45 a.m.-1:46 a.m.

2 stops21h 31m

C$ 1,137

St. John'sLondon

YYT - LHR

YYTLHR

St John's

Wed 19/8

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

2 stops25h 50m

London Heathrow

Mon 31/8

9:10 p.m.-11:50 a.m.

1 stop18h 10m

C$ 1,178

St. John'sLondon

YYT - LHR

YYTLHR

St John's

Fri 25/9

3:00 p.m.-8:55 p.m.

2 stops26h 25m

London Heathrow

Mon 5/10

5:50 p.m.-10:55 p.m.

1 stop32h 35m

C$ 1,182

St. John'sLondon

YYT - LHR

YYTLHR

St John's

Tue 11/8

2:05 p.m.-9:25 p.m.

2 stops27h 50m

London Heathrow

Sun 6/9

7:45 a.m.-1:46 a.m.

2 stops21h 31m

C$ 1,248

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/6

Showing 1-10 of 19 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

How much does it cost to fly round-trip 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 14 June 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
11,178 reviews
Check prices

Comfort

7.1

Food

6.3

Crew

7.8

Overall

7.1

Boarding

7.3

Entertainment

6.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jun 2026

YUL - LYS

The flight was cancelled. We were rebooked the next day on Air France but had a 12 hour layover in Paris. We lost 1 1/2 days of our vacation.
Air Canada
7.1
Good
11,178 reviews
Air Canada
7.1
Good
11,178 reviews
Check prices

Comfort

7.1

Food

6.3

Crew

7.8

Overall

7.1

Boarding

7.3

Entertainment

6.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jun 2026

YUL - LYS

The flight was cancelled. We were rebooked the next day on Air France but had a 12 hour layover in Paris. We lost 1 1/2 days of our vacation.

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 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$ 931. Air Canada is 34% 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
Hounslow
Slough
Marlow
Cobham
Leamington Spa
Northampton
Watford
Luton
High Wycombe
Stratford-upon-Avon
Moreton-in-Marsh

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 14 June 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 931AverageC$ 1,357FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.