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

United Airlines can get you from St. John's to London Heathrow Airport in just under 21h 40m. Your travel time can differ by up to . There are 3713 km between St. John's and London Heathrow Airport.

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$ 918. Air Canada is 37% cheaper than the average price of flights available within the next 90 days to this destination.

In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 mm per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

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

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from St. John's to London Heathrow Airport as you normally would.

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.

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.

C$ 325+ Cheap Flights from St. John's to London Heathrow Airport

Cheap flight deals from St. John's to Heathrow

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

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 10 September 2026.

Mon 12/1012:30 a.m. -

1 stop16h 20m

Fri 23/106:00 a.m. -

2 stops20h 25m

Deal found 9/9C$ 1,033

Thu 12/117:45 p.m. -

2 stops36h 05m

Sun 15/1111:05 a.m. -

2 stops33h 50m

Deal found 8/9C$ 1,120

Sun 4/105:45 a.m. -

2 stops35h 25m

Sun 11/1012:00 p.m. -

2 stops32h 38m

Deal found 6/9C$ 1,125

Fri 2/108:25 p.m. -

2 stops30h 35m

Wed 7/108:30 a.m. -

1 stop14h 35m

Deal found 9/9C$ 1,126

Fri 2/106:05 p.m. -

2 stops33h 20m

Tue 6/107:45 a.m. -

2 stops20h 18m

Deal found 9/9C$ 1,129

Sat 3/105:35 a.m. -

2 stops22h 10m

Wed 7/107:45 a.m. -

2 stops21h 31m

Deal found 6/9C$ 1,132

Sat 3/108:55 p.m. -

2 stops20h 35m

Fri 9/108:30 a.m. -

1 stop14h 35m

Deal found 6/9C$ 1,148

Mon 5/103:00 p.m. -

2 stops19h 20m

Mon 12/105:50 p.m. -

1 stop32h 35m

Deal found 7/9C$ 1,176

Find flight deals from St. John's to Heathrow

Round-trip from	C$ 1,033
One-way from	C$ 325
Popular in	November
Cheapest in	April
Average price	C$ 1,297

12/10-23/10
3 total stops
36h 45m total
St. John's to London

Search Deals

19/10-31/12
1 total stop
8h 40m total
St. John's to London

Search Deals

Highest demand for flights based on searches. 16% potential increase in price (C$ 399 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease (C$ 87 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

Cheapflights Fare Finder

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

Quickest round-trip

St. John'sLondon

YYT St John's - LHR London Heathrow

YYTLHR

St John's

Mon 19/10

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

2 stops17h 35m

London Heathrow

Wed 31/12

12:00 a.m.-7:30 p.m.

Nonstop0h 00m

C$ 449

St. John'sLondon

YYT St John's - LHR London Heathrow

YYTLHR

St John's

Sat 10/10

12:30 a.m.-5:00 p.m.

2 stops37h 00m

London Heathrow

Wed 31/12

12:00 a.m.-7:30 p.m.

Nonstop0h 00m

C$ 521

St. John'sLondon

YYT St John's - LHR London Heathrow

YYTLHR

St John's

Fri 2/10

8:25 p.m.-1:30 p.m.

2 stops37h 35m

London Heathrow

Wed 31/12

12:00 a.m.-7:30 p.m.

Nonstop0h 00m

C$ 575

St. John'sLondon

YYT St John's - LHR London Heathrow

YYTLHR

St John's

Mon 5/10

6:00 a.m.-10:20 a.m.

3 stops24h 50m

London Heathrow

Wed 31/12

12:00 a.m.-7:30 p.m.

Nonstop0h 00m

C$ 590

St. John'sLondon

YYT St John's - LHR London Heathrow

YYTLHR

St John's

Sat 10/10

3:00 p.m.-9:10 a.m.

3 stops38h 40m

London Heathrow

Wed 31/12

12:00 a.m.-7:30 p.m.

Nonstop0h 00m

C$ 600

St. John'sLondon

YYT St John's - LHR London Heathrow

YYTLHR

St John's

Mon 19/10

7:10 p.m.-12:45 p.m.

2 stops38h 05m

London Heathrow

Wed 31/12

12:00 a.m.-7:30 p.m.

Nonstop0h 00m

C$ 602

St. John'sLondon

YYT St John's - LHR London Heathrow

YYTLHR

St John's

Sat 17/10

3:00 p.m.-12:05 p.m.

2 stops41h 35m

London Heathrow

Wed 31/12

12:00 a.m.-7:30 p.m.

Nonstop0h 00m

C$ 764

St. John'sLondon

YYT St John's - LHR London Heathrow

YYTLHR

St John's

Thu 7/1

6:00 a.m.-8:05 a.m.

3 stops22h 35m

London Heathrow

Wed 31/12

12:00 a.m.-7:30 p.m.

Nonstop0h 00m

C$ 907

St. John'sLondon

YYT St John's - LHR London Heathrow

YYTLHR

St John's

Wed 7/10

5:35 a.m.-6:45 a.m.

2 stops21h 40m

London Heathrow

Wed 28/10

1:35 p.m.-5:25 p.m.

2 stops30h 20m

C$ 1,125

St. John'sLondon

YYT St John's - LHR London Heathrow

YYTLHR

St John's

Sat 10/10

5:45 a.m.-5:55 a.m.

2 stops20h 40m

London Heathrow

Tue 27/10

9:10 a.m.-1:50 a.m.

2 stops19h 10m

C$ 1,125

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/9

Showing 1-10 of 17 resultsSorted by cheapest first

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.

YYT-LHR

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.

Reviews of airlines servicing Heathrow

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

11,608 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Sylvia,Aug 2026

YYZ - PHL

Our flight from Kelowna was 5 hours delayed. We missed our connection. We were able to get to a hotel by 3:00 a.m. but the breakfast cost us $40. The hotel was good. We were rescheduled for the flight the next night when it was canceled. There were no hotel vouchers available which didn't matter because there were no hotel rooms available. We decided to just drive which was not easy doing a one-way rental to the United States. Worst possible trip I've ever had

Air Canada

7.1

Good

11,608 reviews

Air Canada

7.1

Good

11,608 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Sylvia,Aug 2026

YYZ - PHL

Related info for your journey

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.
How long is the flight from St. John's to London Heathrow Airport?
United Airlines can get you from St. John's to London Heathrow Airport in just under 21h 40m. Your travel time can differ by up to . There are 3713 km between St. John's and London Heathrow Airport.
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$ 918. Air Canada is 37% 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

Gatwick

Romford

Twickenham

Ilford

Bromley

Sutton

Luton

Slough

Marlow

Cobham

Hounslow

Leamington Spa

Northampton

Watford

High Wycombe

Stratford-upon-Avon

Moreton-in-Marsh

Browse thousands of different options on Cheapflights for your next trip

Alternative routes

Complete your trip

Direct flights to England

Flights by cabin class

Heathrow flight routes

Other flight options

Other flights from St. John's

Popular flights

Alternative routes for St. John's to Heathrow

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

Airline	Cheapest	Average	Flexibility	On-time
Air Canada	CheapestC$ 918	AverageC$ 1,314	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights

Fly with Cheapflights

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.

Cheap flights from St. John's to London Heathrow Airport from C$ 325

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 14/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from St. John's to Heathrow

Cheapest flights from St. John's to HeathrowExplore 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 10 September 2026.

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 10 September 2026.

Best flights from St. John's to HeathrowDiscover carefully curated flight deals from St. John's to Heathrow that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 10 September 2026.

Discover carefully curated flight deals from St. John's to Heathrow that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 10 September 2026.

Last-minute flights from St. John's to HeathrowDiscover last-minute flight deals from St. John's to Heathrow. Data last updated 10 September 2026 and is based on user searches.

Discover last-minute flight deals from St. John's to Heathrow. Data last updated 10 September 2026 and is based on user searches.

One-way flights from St. John's to HeathrowSearch for one-way flight options from St. John's to Heathrow. Find affordable one-way fares based on user searches. Data last updated 10 September 2026.

Search for one-way flight options from St. John's to Heathrow. Find affordable one-way fares based on user searches. Data last updated 10 September 2026.

Find flight deals from St. John's to Heathrow

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from St. John's to London Heathrow Airport that are best for you.

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.

Reviews of airlines servicing Heathrow

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.

Related info for your journey

What airport do you fly from for flights from St. John's to London Heathrow?

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

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

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

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

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

Travelling to a place near London Heathrow Airport?

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.

Complete your trip

Complete your trip to Heathrow by adding a car rental and/or hotel reservation to your travel itinerary.

Direct flights to England

Book a non-stop flight to one of these other cities located in England.

Search flights from St. John's to Heathrow by cabin class

Find flights from St. John's to Heathrow, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Other flights to Heathrow

Explore flights to Heathrow departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 10 September 2026.

St. John's and Heathrow flights

Browse other St. John's and Heathrow flight options. Last updated on 10 September 2026.

Other flights from St. John's

Browse through other flights departing from St. John's. Flights are based on user searches made on Cheapflights and were last updated on 10 September 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Top airline flying from St. John's to Heathrow

Fly with Cheapflights

How does Cheapflights help users find flights from St. John's to Heathrow?

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

Can Cheapflights 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?

100% Free

Book with Flexibility

Travel Smart

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 10 September 2026.

Best flights from St. John's to Heathrow
Discover carefully curated flight deals from St. John's to Heathrow that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 10 September 2026.

Last-minute flights from St. John's to Heathrow
Discover last-minute flight deals from St. John's to Heathrow. Data last updated 10 September 2026 and is based on user searches.

One-way flights from St. John's to Heathrow
Search for one-way flight options from St. John's to Heathrow. Find affordable one-way fares based on user searches. Data last updated 10 September 2026.