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Cheap flights from London to Saint John

LON — YSJ
30 Nov — 7 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from London to St John

Discover tips and strategies to find the most affordable flight options for your journey from London (LON) to St John (YSJ). 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 31 October 2025.

Popular in

July

Cheapest in

May

Average price

£567
Highest demand for flights based on searches. 4% potential increase in price (£20 potential increase over avg. return price).
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Cheapest flight prices on average. 1% potential price decrease (£5 potential savings vs. average return price).
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Average for round-trip flights in October 2025
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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.
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

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

Currently, May is the cheapest month in which you can book a flight from London to Saint John (average of £395). Flying from London to Saint John in December is currently the most expensive (average of £557). 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.

Reviews of airlines servicing St John

Get insights into the airlines that provide service to St John. 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 St John. Reviews last updated 31 October 2025.
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
10,381 reviews
Check prices

Overall

7.1

Boarding

7.3

Comfort

7.1

Crew

7.8

Food

6.3

Entertainment

6.8

Reviews

1 / 20
2.0
Mediocre

robert,Sept 2025

YEG - YVR

There was nothing that I liked about air canada. My experience was terrible.
Air Canada
7.1
Good
10,381 reviews
Air Canada
7.1
Good
10,381 reviews
Check prices

Overall

7.1

Boarding

7.3

Comfort

7.1

Crew

7.8

Food

6.3

Entertainment

6.8

Reviews

1 / 20
2.0
Mediocre

robert,Sept 2025

YEG - YVR

There was nothing that I liked about air canada. My experience was terrible.

Related info for your journey

Find useful and relevant information for your journey from London to St John. 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 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.

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

    Currently priced at £442, 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 21% 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.

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

    Currently, May is the cheapest month in which you can book a flight from London to Saint John (average of £395). Flying from London to Saint John in December is currently the most expensive (average of £557). 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.

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Top airline flying from London to St John

Discover the top airline that operate flights from London to St John. 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 858,174 searches. Data last updated 31 October 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest£442Average£620FlexibilityNo cancel feeOn-time67%
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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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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