How long is the flight from Saint John to London?

Airlines like Air Canada fly from Saint John to London in about 16h 05m. The time it takes to get you to your destination can typically vary by up to . Saint John and London are separated by a distance of 4712 km.

In terms of precipitation, rainfall in London 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 when rainfall is around 40.0 mm.

If weather is an important factor for your trip to London, 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 YSJ to LON?

When flying from Saint John to London, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

Located just 15.1 km from the city centre, Saint John is the airport most travellers will use when flying to London from Saint John. Booking flights from Saint John (YSJ) to London should be relatively easy as there are 0 daily outbound flights to London from 0 different airlines.

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

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

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

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

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

Yes. Cheapflights offers flight deals from St John to London 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$ 853+ Cheap Flights from Saint John to London

Cheap flight deals from St John to London

Enter your travel dates to find the best prices.

Cheapest

Best

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Cheapest flights from St John to London
Explore the most affordable flight options available from St John to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 October 2026.

Sun 8/1111:05 a.m. -

1 stop16h 05m

Sun 15/116:00 a.m. -

2 stops21h 28m

Deal found 27/10C$ 1,162

Sun 8/1111:05 a.m. -

1 stop16h 05m

Thu 12/111:00 p.m. -

1 stop25h 19m

Deal found 27/10C$ 1,193

Sat 12/1211:05 a.m. -

1 stop16h 05m

Sun 27/121:00 p.m. -

1 stop25h 25m

Deal found 28/10C$ 1,496

Tue 22/125:20 a.m. -

1 stop21h 10m

Tue 29/121:00 p.m. -

1 stop25h 25m

Deal found 25/10C$ 1,584

Fri 25/1211:05 a.m. -

1 stop16h 05m

Mon 4/16:00 p.m. -

1 stop26h 54m

Deal found 27/10C$ 1,628

Find flight deals from St John to London

Round-trip from	C$ 1,140
One-way from	C$ 853

Air Canada
18/1-22/1
3 total stops
37h 59m total
Saint John to London

Search Deals

Air Canada
10/12-31/12
3 total stops
20h 15m total
Saint John to London

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Thu 10/12

11:05 a.m.-11:20 a.m.

3 stops20h 15m

London Heathrow

Wed 31/12

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

Nonstop0h 00m

C$ 853

Quickest round-trip

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Thu 10/12

11:05 a.m.-9:05 a.m.

1 stop18h 00m

London Heathrow

Wed 31/12

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

Nonstop0h 00m

C$ 916

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Sun 13/12

11:05 a.m.-9:35 p.m.

3 stops30h 30m

London Heathrow

Wed 31/12

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

Nonstop0h 00m

C$ 951

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Sun 13/12

5:20 a.m.-6:30 a.m.

1 stop21h 10m

London Heathrow

Wed 31/12

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

Nonstop0h 00m

C$ 958

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Mon 18/1

11:05 a.m.-7:10 a.m.

1 stop16h 05m

London Heathrow

Fri 22/1

6:00 a.m.-11:54 p.m.

2 stops21h 54m

C$ 1,140

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Thu 7/1

11:05 a.m.-7:10 a.m.

1 stop16h 05m

London Heathrow

Fri 15/1

6:00 p.m.-10:25 a.m.

2 stops20h 25m

C$ 1,356

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Sat 12/12

11:05 a.m.-7:10 a.m.

1 stop16h 05m

London Heathrow

Sun 27/12

1:00 p.m.-10:25 a.m.

1 stop25h 25m

C$ 1,496

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Tue 22/12

5:20 a.m.-6:30 a.m.

1 stop21h 10m

London Heathrow

Tue 29/12

1:00 p.m.-10:25 a.m.

1 stop25h 25m

C$ 1,584

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Fri 25/12

11:05 a.m.-7:10 a.m.

1 stop16h 05m

London Heathrow

Mon 4/1

6:00 p.m.-4:54 p.m.

1 stop26h 54m

C$ 1,628

Flights are sorted by cheapest round-trip flights first.

Deals found on 27/10

Sorted by cheapest first

Best time to book a flight from St John to London

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

YSJ-LON

YSJ-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.

Cheapflights Insights

Everything you need to know about your flight from Saint John to London

YSJ-LON

YSJ-LHR

No data available for this route at this time. Please check back soon.

Related info for your journey

What airport do you fly from for flights from Saint John to London?
Located just 15.1 km from the city centre, Saint John is the airport most travellers will use when flying to London from Saint John. Booking flights from Saint John (YSJ) to London should be relatively easy as there are 0 daily outbound flights to London from 0 different airlines.
How long is the flight from Saint John to London?
Airlines like Air Canada fly from Saint John to London in about 16h 05m. The time it takes to get you to your destination can typically vary by up to . Saint John and London are separated by a distance of 4712 km.
Can I find deals for flights from St John to London that include hotel bookings?
Yes. In addition to deals on St John to London flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from St John to London?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St John to London.
Can I find deals for business class flights from St John to London?
Yes. Cheapflights offers flight deals from St John to London 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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Why should you use Cheapflights to find cheap flight tickets from St John to London?

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

Certainly. Search results for flights to London from St John shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

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Cheap flights from Saint John to London from C$ 853

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 10/12. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from St John to London

Cheapest flights from St John to LondonExplore the most affordable flight options available from St John to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 October 2026.

Explore the most affordable flight options available from St John to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 October 2026.

Best flights from St John to LondonDiscover carefully curated flight deals from St John to London that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 30 October 2026.

Discover carefully curated flight deals from St John to London that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 30 October 2026.

Last-minute flights from St John to LondonDiscover last-minute flight deals from St John to London. Data last updated 30 October 2026 and is based on user searches.

Discover last-minute flight deals from St John to London. Data last updated 30 October 2026 and is based on user searches.

One-way flights from St John to LondonSearch for one-way flight options from St John to London. Find affordable one-way fares based on user searches. Data last updated 30 October 2026.

Search for one-way flight options from St John to London. Find affordable one-way fares based on user searches. Data last updated 30 October 2026.

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Best time to book a flight from St John to London

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Related info for your journey

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

How long is the flight from Saint John to London?

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

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

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

Travelling to a place near London?

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Alternative routes for St John to London

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Complete your trip

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

Direct flights to England

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Search flights from St John to London by cabin class

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

Other flights to London

Explore flights to London departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 30 October 2026.

St John and London flights

Browse other St John and London flight options. Last updated on 30 October 2026.

Other flights from St John

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

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

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Cheapest flights from St John to London
Explore the most affordable flight options available from St John to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 October 2026.

Best flights from St John to London
Discover carefully curated flight deals from St John to London that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 30 October 2026.

Last-minute flights from St John to London
Discover last-minute flight deals from St John to London. Data last updated 30 October 2026 and is based on user searches.

One-way flights from St John to London
Search for one-way flight options from St John to London. Find affordable one-way fares based on user searches. Data last updated 30 October 2026.