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Cheap flight tickets from London Heathrow to Saint John

Compare London Heathrow to Saint John flight deals

Find the cheapest month or even day of the year to fly to Saint John

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Flight deals from London Heathrow to Saint John

Looking for a cheap last-minute deal or the best return flight from London Heathrow to Saint John? Find the lowest prices on one-way and return tickets right here.
Saint John.RM2,865 per passenger.Departing Tue, 8 Sep, returning Mon, 28 Sep.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from London Heathrow on Tue, 8 Sep, arriving in Saint John.Inbound indirect flight with Air Canada, departs from Saint John on Mon, 28 Sep, arriving in London Heathrow.Price includes taxes and charges.From RM2,865, select.
Saint John.RM2,878 per passenger.Departing Sat, 2 May, returning Sat, 9 May.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from London Heathrow on Sat, 2 May, arriving in Saint John.Inbound indirect flight with Air Canada, departs from Saint John on Sat, 9 May, arriving in London Heathrow.Price includes taxes and charges.From RM2,878, select.
Saint John.RM2,996 per passenger.Departing Wed, 4 Nov, returning Mon, 16 Nov.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from London Heathrow on Wed, 4 Nov, arriving in Saint John.Inbound indirect flight with Air Canada, departs from Saint John on Mon, 16 Nov, arriving in London Heathrow.Price includes taxes and charges.From RM2,996, select.
Saint John.RM3,121 per passenger.Departing Mon, 16 Mar, returning Mon, 23 Mar.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from London Heathrow on Mon, 16 Mar, arriving in Saint John.Inbound indirect flight with Air Canada, departs from Saint John on Mon, 23 Mar, arriving in London Heathrow.Price includes taxes and charges.From RM3,121, select.
Saint John.RM3,152 per passenger.Departing Wed, 15 Apr, returning Wed, 22 Apr.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from London Heathrow on Wed, 15 Apr, arriving in Saint John.Inbound indirect flight with Air Canada, departs from Saint John on Wed, 22 Apr, arriving in London Heathrow.Price includes taxes and charges.From RM3,152, select.
Saint John.RM3,174 per passenger.Departing Wed, 25 Mar, returning Wed, 1 Apr.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from London Heathrow on Wed, 25 Mar, arriving in Saint John.Inbound indirect flight with Air Canada, departs from Saint John on Wed, 1 Apr, arriving in London Heathrow.Price includes taxes and charges.From RM3,174, select.
Saint John.RM3,268 per passenger.Departing Thu, 26 Feb, returning Thu, 5 Mar.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from London Heathrow on Thu, 26 Feb, arriving in Saint John.Inbound indirect flight with Air Canada, departs from Saint John on Thu, 5 Mar, arriving in London Heathrow.Price includes taxes and charges.From RM3,268, select.
Saint John.RM3,310 per passenger.Departing Wed, 15 Apr, returning Sat, 2 May.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from London Heathrow on Wed, 15 Apr, arriving in Saint John.Inbound indirect flight with Air Canada, departs from Saint John on Sat, 2 May, arriving in London Heathrow.Price includes taxes and charges.From RM3,310, select.

Find the cheapest month to fly from London Heathrow to Saint John

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like London Heathrow to Saint John flights are currently cheapest in September.
Feb
Find prices
Mar
from RM3,121
Apr
from RM3,152
May
from RM2,878
Jun
from RM3,469
Jul
from RM4,117
Aug
Find prices
Sep
from RM2,865
Oct
from RM3,470
Nov
from RM2,996
Dec
Find prices
Jan
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London Heathrow to Saint John: Alternative routes

Compare routes from London Heathrow to Saint John below. You may find an airport to fly into that's cheaper, faster, or easier than Saint John.

Saint John

15km from central Saint John
ClosestCheapest
from RM2,865
Search flights

Fredericton

75km from central Saint John
from RM3,039
Search flights

London to Saint John: Flight information

The things to know before you go.
Cheapest flight foundRM2,865
Cheapest month to flySeptember

Finding cheap flights from London Heathrow to Saint John: Frequently asked questions

The best price we found for a return flight from London Heathrow to Saint John is RM2,865. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from London Heathrow to Saint John. But we found flights with one or more stops from RM2,865.
As of February 2026, there are no flights flying from London Heathrow to Saint John.
The cheapest month to fly from London Heathrow to Saint John is usually September.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from London Heathrow Airport to Saint John Airport on Tuesday, 8 September 2026.
No airlines currently offer direct flights between London Heathrow Airport and Saint John Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Saint John but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Saint John is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Air Canada offers the cheapest flight tickets to Saint John.

Flying from London Heathrow Airport (LHR) to Saint John Airport (YSJ): what you need to know

  • Saint John's timezone is UTC-3, which makes Saint John three hours behind London.

  • To ensure you catch your LHR to YSJ flight, leave enough time to check in and find your gate. Arriving two hours before international departures and an hour before domestic flights is the general travel rule.

  • You'll likely experience longer queues during popular months such as July. Arriving up to four hours in advance for international flights and two hours for domestic departures is a wise move.

  • Take a detour to a new city or break up your flight with a stopover. Just uncheck 'Direct flights only' to see your options when searching for tickets from London Heathrow Airport to Saint John Airport. Many travellers pass through Montreal-Pierre Elliott Trudeau International Airport on this route.

How to find the cheapest flights from London Heathrow Airport (LHR) to Saint John Airport (YSJ)

  • Right now, RM3,716 is the cheapest price we've found for a one-way London Heathrow Airport to Saint John Airport flight. The best price for a return ticket is RM2,865. Keep in mind that fares could change due to availability when booking.

  • Don't wait until the last minute. You're more likely to find cheap tickets from LHR to YSJ if you book in advance. Airlines often have some amazing early bird rates.

  • The 'Whole month' tool shows you the cheapest flights from London Heathrow Airport to Saint John Airport throughout the month. It's an easy way to find a bargain if your plans aren't set in stone.

  • There's no need to check every day to find out if fares have dropped when you create a Price Alert. We'll notify you the moment there's a change in price on cheap flights from LHR to YSJ.

  • Tailor your trip using filters. Choose your ideal arrival and departure times, airlines and total journey duration. You can also sort the results by 'Cheapest,' 'Best' or 'Fastest' flights from London Heathrow Airport to Saint John Airport.

Handy information about London Heathrow Airport (LHR)

  • 68.18% of flights leaving from London Heathrow Airport land at their destination on time.

  • To reach London Heathrow Airport from central London, it takes around 55 minutes if you're going by car. Of course, this depends on traffic conditions. It's approximately 31 kilometres from the airport to the city centre.

  • Planning to catch public transport? You can expect a journey time of around 1 hour.

  • Need a convenient hotel close to LHR? If you've booked an early flight from London Heathrow Airport to Saint John Airport, these accommodation options will have you sleeping moments from check-in:

Arriving at Saint John Airport (YSJ)

  • The last thing you need is a lengthy trip to your hotel if you're getting in late on a London Heathrow Airport to Saint John Airport flight. Book one of these accommodation options near YSJ instead:

  • Grab a Saint John Airport rental car and explore Saint John and beyond with your own set of wheels. Alamo, Avis and Budget are well-known companies to choose from here.

  • To get the lowest price, book your vehicle from Saint John Airport around one week before travelling.

Getting from Saint John Airport (YSJ) to central Saint John

  • From Saint John Airport, Saint John is approximately 24 kilometres away. It takes around 20 minutes to reach the centre by car.

  • If you're using public transport, expect a journey of about 55 minutes.

When to fly to Saint John Airport (YSJ)

  • August is the busiest month for flights from London Heathrow Airport to Saint John Airport. For smaller crowds, visit Saint John in February.

  • The warmest month in Saint John is August, with temperatures ranging between 13ºC (55ºF) and 23ºC (73ºF). Lock in your flights from London Heathrow Airport to Saint John Airport in this month if you like this kind of weather.

  • If you like cooler conditions, look for a cheap ticket from LHR to YSJ in January. Average temperatures are between -12ºC (10ºF) and 1ºC (34ºF) then.

Explore more of Canada

  • Halifax is just one of the many cities in Canada waiting to be discovered once you've taken in the sights of Saint John. Around 209 kilometres away to the east, popular attractions include Halifax Citadel National Historic Site of Canada, Canadian Museum of Immigration at Pier 21 and The Halifax Public Gardens.

  • Around 451 kilometres west of Saint John, Sherbrooke is another essential stop in Canada. Experience this destination's highlights firsthand at Grand Saule Garden, ON SE FAIT DU CINÉMA (murale #11) and Dam Park.

Plan the rest of your trip from London to Saint John

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.