YYT - LHR

C$ 351 Find Cheap Flights from St. John's to London Heathrow Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. John's to Heathrow departing on 9/7. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to London Heathrow Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. John's to London, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. John's to London, as well as popular online travel agencies
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Flights Deals

Cheap Flights from St. John's to Heathrow (YYT-LHR)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. John's to Heathrow that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from St. John's to Heathrow

Tue, 2 Sep - Mon, 8 Sep
United Airlines Logo
5:50 a.m. - 6:55 a.m.YYT-LHR
21h 35m2 stops
United Airlines Logo
10:50 a.m. - 1:16 a.m.LHR-YYT
41h 56m2 stops
C$ 946United Airlines
Find Deal
Fri, 5 Sep - Sat, 13 Sep
United Airlines Logo
5:50 a.m. - 5:55 a.m.YYT-LHR
20h 35m2 stops
United Airlines Logo
12:05 p.m. - 1:16 a.m.LHR-YYT
16h 41m1 stop
C$ 953United Airlines
Find Deal
Mon, 8 Sep - Sat, 13 Sep
Lufthansa Logo
6:10 p.m. - 9:35 a.m.YYT-LHR
11h 55m1 stop
Lufthansa Logo
12:05 p.m. - 9:41 p.m.LHR-YYT
13h 06m1 stop
C$ 1,109Lufthansa
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Thu, 28 Aug - Wed, 3 Sep
Lufthansa Logo
6:10 p.m. - 6:30 a.m.YYT-LHR
32h 50m1 stop
Lufthansa Logo
12:05 p.m. - 1:16 a.m.LHR-YYT
16h 41m1 stop
C$ 1,127Lufthansa
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Wed, 16 Jul - Wed, 23 Jul
 Logo
12:30 a.m. - 12:30 p.m.YYT-LHR
8h 30m1 stop
 Logo
3:50 p.m. - 11:39 a.m.LHR-YYT
23h 19m1 stop
C$ 1,165
Find Deal
Wed, 24 Sep - Wed, 8 Oct
Air Canada Logo
4:35 p.m. - 9:35 a.m.YYT-LHR
13h 30m2 stops
Air Canada Logo
6:50 a.m. - 5:09 p.m.LHR-YYT
13h 49m2 stops
C$ 1,179Air Canada
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Wed, 24 Sep - Wed, 15 Oct
Air Canada Logo
6:10 p.m. - 9:35 a.m.YYT-LHR
11h 55m1 stop
Air Canada Logo
9:30 a.m. - 12:39 a.m.LHR-YYT
18h 39m1 stop
C$ 1,192Air Canada
Find Deal
Fri, 15 Aug - Sun, 24 Aug
 Logo
4:35 p.m. - 10:00 a.m.YYT-LHR
13h 55m2 stops
 Logo
6:00 a.m. - 10:23 p.m.LHR-YYT
19h 53m2 stops
C$ 1,311
Find Deal
Mon, 29 Sep - Wed, 1 Oct
WestJet Logo
7:10 a.m. - 12:05 p.m.YYT-LHR
25h 25m1 stop
WestJet Logo
2:10 p.m. - 6:20 a.m.LHR-YYT
19h 40m1 stop
C$ 1,697WestJet
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Mon, 29 Sep - Wed, 1 Oct
WestJet Logo
7:10 a.m. - 12:05 p.m.YYT-LHR
25h 25m1 stop
WestJet Logo
2:10 p.m. - 10:56 p.m.LHR-YYT
36h 16m2 stops
C$ 1,706WestJet
Find Deal
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KAYAK's insights & trends for St. John's to Heathrow flights

Get data-powered insights and trends into flights from St. John's to Heathrow to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from St. John's to London Heathrow Airport?

The average price of all round-trip flights from St. John's to London Heathrow Airport clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to London Heathrow Airport on a Wednesday, as we generally find the cheapest rates on that day for this route. On the other hand, Thursday is the most expensive day to fly from St. John's to London Heathrow Airport. For your return ticket, we recommend flying on a Thursday and avoiding Sundays for the best deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from St. John's to London Heathrow Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from St. John's to London Heathrow Airport is March, where tickets cost C$ 1,016 (return) on average. On the other hand, the most expensive months are December and July, where the average cost of round-trip tickets is C$ 1,486 and C$ 1,306 respectively.


Good to know

Low seasonOctober
High seasonApril
Cheapest flightC$ 351
Best time to beat the crowds (0% less expensive on average)
Most popular time to fly and prices are also 5% lower on average.
Flight from St. John's to London Heathrow Airport

When to book flights from St. John's to Heathrow

Are your dates flexible? Find out the best times to travel from St. John's to Heathrow based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking St. John's to London Heathrow Airport flights

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

    In the last 3 days, the lowest price for a flight from St. John's to London Heathrow Airport was C$ 257 for a one-way ticket and C$ 692 for a round-trip.

  • Which aircraft models fly most regularly from St. John's to London Heathrow Airport?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from St. John's to London Heathrow Airport?

    Star Alliance, and SkyTeam are the airline alliances operating flights between St. John's and London Heathrow Airport, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from St. John's to London, WestJet or Air Canada?

    The two airlines most popular with KAYAK users for flights from St. John's to London are WestJet and Air Canada. With an average price for the route of C$ 666 and an overall rating of 7.2, WestJet is the most popular choice. Air Canada is also a great choice for the route, with an average price of C$ 1,095 and an overall rating of 7.1.

  • How does KAYAK find such low prices on flights from St. John's to London Heathrow Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from St. John's to London Heathrow Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. John's to London Heathrow Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London Heathrow Airport from St. John's is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from St. John's to London Heathrow Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to London Heathrow Airport with an airline and back to St. John's with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. John's to London Heathrow Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London Heathrow Airport from St. John's up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top airlines flying from St. John's to Heathrow

 
See real verified KAYAK customer reviews for airlines flying from St. John's to London. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from St. John's to Heathrow? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.2
WestJetOverall score based on 2868 reviews
6.2Food
7.1Comfort
6.1Entertainment
7.4Boarding
7.9Crew
Airline reviews

Not the greatest experience everything was pretty mediocre. My seat was by the washroom in the aisle and was not located well as everyone past each other people were right in my seat and space.

2.0 MediocreAnonymous, Jun 2025YYZ - YVR
Read more WestJet reviews

Not the greatest experience everything was pretty mediocre. My seat was by the washroom in the aisle and was not located well as everyone past each other people were right in my seat and space.

Lots of overhead storage, good crew, good service, smooth landing.

Lots of overhead storage and a good crew and service.

The small prop plane was crowded and the overhead luggage storage is a smaller than on the jets. Other than that, the crew was good, the flight was on time and the landing was smooth.

There was a medical emergency that the crew handled very well. There was no “entertainment” of any sort-no movie/music/whatever. Food was typical of airlines: mediocre.

On time. Friendly and efficient staff at check in and flight crew.

Terrible decision to take a night flight. Not enough time to sleep and premium seat has no foot rest ao couldn’t get comfortable!

Late departure, so I missed connection in Detroit. But Delta gave me a great hotel & breakfast. Just sorry I could not get anything from my checked baggage.

Crew was friendly. Lost our luggage and told us it’d be in later in the evening of the day we returned. It was not. Still after 5 days have not received it.

Was on a Swoop plane. No wifi and no Westjet connect

Food hope it make it international not mainly like pilipino food

Just a little improvement on food but everything is excellent

Like- beer/wine for free Dis-like- all other aspects- customer service was horrible the entire trip. No help from Air Canada after they changed flight 6+ hours later. Also they put us on standby for no reason. Then almost 2 hours to get our bags after we arrived back at airport

This was actually a bus ride to the KW airport. It was smooth and comfortable and on time.

The plane in use lacked an entertainment system (perhaps because it was still being updated?). It was an overnight flight so it wasn't terrible but still. The actual seat was adequate but not great. As an economy flyer, food review is largely irrelevant. I am unhappy with this race to the bottom for services provided especially as it applies to baggage restrictions.

Service Director cut all cabin lights and window screens defaulted to dark, but it was an afternoon flight going west. I spent hours trying to see what was reading as reading lights weren't working either. What the hell.

Good flight, friendly crew and overall - good service on United Airlines.

Enjoyed the flights with Air Canada. Friendly, courteous staff and flight crew - kept us informed and efficiently got us boarded and to destination on time. Seats were reasonably comfortable and good room in the overhead spaces.

From my experience, I see there is room for a greater mixture of cultures, for example, a mix of the nationality of cabin crews, food, music, food, etc.

on time quick service but food so so and seats very small. no leg room. I think passengers should not be bringing so large carry on suitcases and should have free check in. Then boarding and unloading would be faster

Everything you need to know for your flight from St. John's to Heathrow

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