How long is the flight from London to Saint John?

Air Canada can get you from London to Saint John in just under 21h 58m. Your travel time can differ by up to . There are 2928 mi between London and Saint John.

What is the cheapest airline to fly from London to Saint John round-trip?

Currently priced at £481, Air Canada will fly you from London to Saint John and back. In addition to Air Canada, many other airlines offer competitively priced options for your trip. Air Canada is currently priced 31% below the average price you’ll pay for this route.

In terms of precipitation, rainfall in Saint John ranges from 82.0 - 134.0 inches per month. November is typically the wettest month, when rainfall can reach 134.0 mm. August is typically the driest time to visit Saint John when rainfall is around 82.0 mm.

If weather is an important factor for your trip to Saint John, 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 -8.0 C).

What is the cheapest time of day to fly from LON to YSJ?

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

What airport do you fly into for flights to Saint John from London?

If you book a flight to Saint John from London, you will be flying to Saint John, which is the city’s only airport. Saint John (YSJ) is located 9.4 mi from the center of Saint John. There are 0 flights from London to Saint John per day from 1 airline.

Can I find deals for flights from London to St John that include hotel bookings?

Yes. In addition to deals on London to St John flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from London to St John?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to St John.

Can I find deals for business class flights from London to St John?

Yes. Cheapflights offers flight deals from London to St John by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£533+ Cheap Flights from London to Saint John

Cheap flight deals from London to St John

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

Cheapest flights from London to St John
Explore the most affordable flight options available from London to St John. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 November 2026.

Thu 24/1213:00 -

1 stop25h 25m

Thu 31/1211:05 -

1 stop16h 05m

Deal found 9/11£861

Mon 28/1213:00 -

1 stop25h 25m

Mon 4/105:20 -

1 stop26h 00m

Deal found 13/11£897

Sun 27/1218:00 -

1 stop33h 58m

Sun 3/111:05 -

1 stop16h 05m

Deal found 12/11£952

Sat 26/1211:10 -

1 stop16h 48m

Sat 2/105:20 -

2 stops50h 40m

Deal found 11/11£998

Thu 24/1212:05 -

2 stops15h 53m

Thu 31/1205:20 -

2 stops21h 00m

Deal found 9/11£1,000

Sat 26/1206:00 -

2 stops32h 25m

Sat 2/105:20 -

2 stops50h 40m

Deal found 11/11£1,011

Thu 24/1218:00 -

3 stops20h 25m

Thu 31/1205:20 -

2 stops22h 45m

Deal found 9/11£1,028

Find flight deals from London to St John

Round-trip from	£649
One-way from	£533
Popular in	July
Cheapest in	February
Average price	£725

Air Canada
14/1-17/1
4 total stops
57h 38m total
London to Saint John

Search Deals

Air Canada
3/12-31/12
2 total stops
21h 58m total
London to Saint John

Search Deals

Highest demand for flights based on searches. 13% potential increase in price (£86 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£15 potential savings vs. average return price).

Search Deals

Average for round-trip flights in November 2026

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Fastest return journey

LondonSaint John

LHR London Heathrow - YSJ Saint John

LHRYSJ

London Heathrow

Thu 3/12

09:00-23:58

3 stops18h 58m

Saint John

Wed 31/12

00:00-05:00

Nonstop0h 00m

£539

LondonSaint John

LHR London Heathrow - YSJ Saint John

LHRYSJ

London Heathrow

Tue 1/12

18:00-23:58

1 stop33h 58m

Saint John

Wed 31/12

00:00-05:00

Nonstop0h 00m

£551

LondonSaint John

LHR London Heathrow - YSJ Saint John

LHRYSJ

London Heathrow

Mon 28/12

14:50-10:25

3 stops23h 35m

Saint John

Wed 31/12

00:00-05:00

Nonstop0h 00m

£619

LondonSaint John

LHR London Heathrow - YSJ Saint John

LHRYSJ

London Heathrow

Thu 14/1

06:00-23:58

2 stops21h 58m

Saint John

Sun 17/1

05:20-21:00

2 stops35h 40m

£649

LondonSaint John

LHR London Heathrow - YSJ Saint John

LHRYSJ

London Heathrow

Tue 4/5

09:30-15:50

1 stop10h 20m

Saint John

Thu 13/5

16:30-10:00

1 stop13h 30m

£756

LondonSaint John

LHR London Heathrow - YSJ Saint John

LHRYSJ

London Heathrow

Thu 24/12

11:10-23:58

1 stop16h 48m

Saint John

Thu 31/12

05:20-07:10

2 stops21h 50m

£868

LondonSaint John

LHR London Heathrow - YSJ Saint John

LHRYSJ

London Heathrow

Mon 28/12

13:00-10:25

1 stop25h 25m

Saint John

Mon 4/1

05:20-11:20

1 stop26h 00m

£897

LondonSaint John

LHR London Heathrow - YSJ Saint John

LHRYSJ

London Heathrow

Sat 26/12

11:10-23:58

1 stop16h 48m

Saint John

Sat 2/1

05:20-12:00

2 stops50h 40m

£998

LondonSaint John

LHR London Heathrow - YSJ Saint John

LHRYSJ

London Heathrow

Thu 24/12

12:05-23:58

2 stops15h 53m

Saint John

Thu 31/12

05:20-06:20

2 stops21h 00m

£1,000

Flights are sorted by cheapest return flights first.

Deals found on 11/11

Sorted by cheapest first

Best time to book a flight from London to St John

Have a flexible travel schedule? Discover the best time to fly to St John from London with our price prediction graph.

LON-YSJ

LHR-YSJ

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 London to Saint John

LON-YSJ

LHR-YSJ

What’s the top stopover airport for flights from London to Saint John?

Toronto (YYZ) – chosen by Cheapflights users on 80% of one-stop itineraries from London to Saint John on Cheapflights.

What’s the cheapest stopover airport for flights from London to Saint John?

Montreal (YUL) is the most affordable one-stop option, with an average return flight price of £500.

What’s the fastest stopover option from London to Saint John?

Flights via Montreal (YUL) have the shortest average one-way travel time for one-stop routes: 10h 10m.

Which airport typically offers the quickest stopover for flights from London to Saint John?

Flights via Montreal (YUL) offer the fastest connection on this route, with an average stopover time of 1h 33m.

Reviews of airlines servicing St John

Read through reviews of airlines operating flights from London to Saint John, such as Air Canada. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Air Canada

7.1

Good

11,894 reviews

Check prices

Reviews

1 / 20

6.0

Good

Anonymous,Oct 2026

FRA - YUL

Every time I have traveled with Lufthansa, during the descent, I experience significant pain in my ears, head, and chest—as if the decompression is happening too quickly.

Air Canada

7.1

Good

11,894 reviews

Air Canada

7.1

Good

11,894 reviews

Check prices

Reviews

1 / 20

6.0

Good

Anonymous,Oct 2026

FRA - YUL

Every time I have traveled with Lufthansa, during the descent, I experience significant pain in my ears, head, and chest—as if the decompression is happening too quickly.

Related info for your journey

What airport do you fly into for flights to Saint John from London?
If you book a flight to Saint John from London, you will be flying to Saint John, which is the city’s only airport. Saint John (YSJ) is located 9.4 mi from the center of Saint John. There are 0 flights from London to Saint John per day from 1 airline.
How long is the flight from London to Saint John?
Air Canada can get you from London to Saint John in just under 21h 58m. Your travel time can differ by up to . There are 2928 mi between London and Saint John.
What is the cheapest airline to fly from London to Saint John round-trip?
Currently priced at £481, Air Canada will fly you from London to Saint John and back. In addition to Air Canada, many other airlines offer competitively priced options for your trip. Air Canada is currently priced 31% below the average price you’ll pay for this route.
Can I find deals for flights from London to St John that include hotel bookings?
Yes. In addition to deals on London to St John flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from London to St John?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to St John.
Can I find deals for business class flights from London to St John?
Yes. Cheapflights offers flight deals from London to St John 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

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Top airline flying from London to St John

Airline	Cheapest	Average	Flexibility	On-time
Air Canada	Cheapest£481	Average£731	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights

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How does Cheapflights help users find flights from London to St John?

Cheapflights helps you search for flights from London to St John 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 London to St John?

Millions of users choose and trust Cheapflights to book the best flight deals from London to St John 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 London to St John with no change fees?

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

Can Cheapflights notify me if prices for flights from London to St John become cheaper?

Yes, Cheapflights offers price alerts on London to St John 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.

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Cheap flights from London to Saint John from £533

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/12. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from London to St John

Cheapest flights from London to St JohnExplore the most affordable flight options available from London to St John. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 November 2026.

Explore the most affordable flight options available from London to St John. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 November 2026.

Best flights from London to St JohnDiscover carefully curated flight deals from London to St John that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 13 November 2026.

Discover carefully curated flight deals from London to St John that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 13 November 2026.

Last-minute flights from London to St JohnDiscover last-minute flight deals from London to St John. Data last updated 13 November 2026 and is based on user searches.

Discover last-minute flight deals from London to St John. Data last updated 13 November 2026 and is based on user searches.

One-way flights from London to St JohnSearch for one-way flight options from London to St John. Find affordable one-way fares based on user searches. Data last updated 13 November 2026.

Search for one-way flight options from London to St John. Find affordable one-way fares based on user searches. Data last updated 13 November 2026.

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Use the filters below to find and compare flights from London to Saint John that are best for you.

Best time to book a flight from London to St John

Have a flexible travel schedule? Discover the best time to fly to St John from London with our price prediction graph.

Cheapflights Insights

What’s the top stopover airport for flights from London to Saint John?

Share of one-stop return flights from London to Saint John chosen by Cheapflights users in the past 12 months, using the same stopover each way.

Toronto (YYZ) – chosen by Cheapflights users on 80% of one-stop itineraries from London to Saint John on Cheapflights.

What’s the cheapest stopover airport for flights from London to Saint John?

Average return fare for one-stop flights from London to Saint John, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

Montreal (YUL) is the most affordable one-stop option, with an average return flight price of £500.

What’s the fastest stopover option from London to Saint John?

Shortest average travel time for one-stop one-way flights from London to Saint John, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

Flights via Montreal (YUL) have the shortest average one-way travel time for one-stop routes: 10h 10m.

Which airport typically offers the quickest stopover for flights from London to Saint John?

Average stopover duration for one-stop one-way flights from London to Saint John, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Montreal (YUL) offer the fastest connection on this route, with an average stopover time of 1h 33m.

Reviews of airlines servicing St John

Read through reviews of airlines operating flights from London to Saint John, such as Air Canada. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

What airport do you fly into for flights to Saint John from London?

How long is the flight from London to Saint John?

What is the cheapest airline to fly from London to Saint John round-trip?

Can I find deals for flights from London to St John that include hotel bookings?

How can I find direct flights from London to St John?

Can I find deals for business class flights from London to St John?

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 London to St John

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to St John by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to Canada

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

Search flights from London to St John by cabin class

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

London and St John flights

Browse other London and St John flight options. Last updated on 13 November 2026.

Other flights from London

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How does Cheapflights help users find flights from London to St John?

Why should you use Cheapflights to find cheap flight tickets from London to St John?

Can Cheapflights find flights from London to St John with no change fees?

Can Cheapflights notify me if prices for flights from London to St John become cheaper?

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Cheapest flights from London to St John
Explore the most affordable flight options available from London to St John. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 November 2026.

Best flights from London to St John
Discover carefully curated flight deals from London to St John that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 13 November 2026.

Last-minute flights from London to St John
Discover last-minute flight deals from London to St John. Data last updated 13 November 2026 and is based on user searches.

One-way flights from London to St John
Search for one-way flight options from London to St John. Find affordable one-way fares based on user searches. Data last updated 13 November 2026.