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Cheap flights from Saint John to London from C$ 818

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/5. Fares are subject to change and may not be available on all flights or dates of travel.
YSJ — LON
30 Mar — 6 Apr1
1 adult

Cheap flight deals from St John to London

Discover tips and strategies to find the most affordable flight options for your journey from St John (YSJ) to London (LON). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 25 March 2025.

Popular in

December

Cheapest in

March

Average price

C$ 1,125
Highest demand for flights based on searches. 8% potential increase in price (C$ 173 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease (C$ 36 potential savings vs. average RT price).
Average for round-trip flights in March 2025

Find flight deals from St John to London

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 25 March 2025.

Thu 8/52:45 p.m.YSJ - LGW
3 stops38h 40mMultiple Airlines
Deal found 24/3C$ 818
Thu 8/52:45 p.m.YSJ - LHR
3 stops43h 55mMultiple Airlines
Deal found 24/3C$ 904
Thu 8/511:35 a.m.YSJ - LHR
1 stop18h 25mAir Canada
Deal found 24/3C$ 1,208

Cheapflights Fare Finder

Customize your flight search to find flights from St John to London that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 25 March 2025.
Use the filters below to find and compare flights from Saint John to London that are best for you.

Fly from

St John

Fly to

London

Route

Depart

Return

Price

Saint JohnLondon

YSJ - LGW

YSJLGW

Saint John

Thu 8/5

2:45 p.m.-9:25 a.m.

3 stops38h 40m

C$ 818

Saint JohnLondon

YSJ - LHR

YSJLHR

Saint John

Thu 8/5

2:45 p.m.-2:40 p.m.

3 stops43h 55m

C$ 904

Saint JohnLondon

YSJ - LHR

YSJLHR

Saint John

Thu 8/5

11:35 a.m.-10:00 a.m.

1 stop18h 25m

C$ 1,208

Flights are sorted by cheapest round-trip flights first.

Deals found on 24/3

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.
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

What is the cheapest month to book a flight from Saint John to London?

Currently, January is the cheapest month in which you can book a flight from Saint John to London (average of C$ 560). Flying from Saint John to London in July is currently the most expensive (average of C$ 874). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Rainfall in London by month

Plan your trip to London by taking into account the average rainfall totals by month.

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.

Temperature in London by month

Plan your trip to London by taking into account the average temperature totals by month.

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).

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to London. Reviews last updated 25 March 2025.

Entertainment

6.8

Overall

7.0

Food

6.2

Boarding

7.3

Crew

7.8

Comfort

7.0

Reviews

1 / 20
6.0
Good

Ruwaneth,Mar 2025

YLW - YYZ

It would be great if there were some options for people with gluten allergies and sensitivities.

Entertainment

6.8

Overall

7.0

Food

6.2

Boarding

7.3

Crew

7.8

Comfort

7.0

Reviews

1 / 20
6.0
Good

Ruwaneth,Mar 2025

YLW - YYZ

It would be great if there were some options for people with gluten allergies and sensitivities.

Related info for your journey

Find useful and relevant information for your journey from St John to London. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • 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 1 airline.

  • 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.

  • What is the cheapest month to book a flight from Saint John to London?

    Currently, January is the cheapest month in which you can book a flight from Saint John to London (average of C$ 560). Flying from Saint John to London in July is currently the most expensive (average of C$ 874). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Saint John?

Book flights to Saint John if you plan to visit one of these locations
Brentford
Hounslow
Sutton
Slough
Milton Keynes
Romford
Watford
Luton
Bromley
Bedford
Southall

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from St John to London

Discover the top airline that operate flights from St John to London. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 25 March 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 1,196AverageC$ 1,299FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

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

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

Cheapflights simply makes it quick and affordable to book flights from St John to London by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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?

Of course! You can now track prices for flights from St John to London and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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