LON - YSJ

Find Cheap Flights from London to Saint John

1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Saint John

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Saint John, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Saint John, as well as popular online travel agencies
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Everything you should know

Direct flights
Not available
There are currently no direct flights between London and Saint John. You’ll need at least 1 connection.
Insights
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Top stopover airports
Toronto (YYZ)
Cheapest • Avg £572 (return)
Montreal (YUL)
Shortest trip • 10h 10m (one-way)
Insights
Insights
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When to travel
February
Cheapest • 18% price drop
August
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
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KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Saint John!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from London to Saint John (LON-YSJ)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from London to Saint John that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from London to Saint John

Multiple Airlines Logo
LON
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YSJ
2941 mimulti-stop
Multiple Airlines Logo
YSJ
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LON
2941 mimulti-stop
Multiple Airlines
Booking Insights

KAYAK’s insights & trends for London to Saint John flights

Get data-powered insights and trends into flights from London to Saint John to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from London to Saint John?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London to Saint John, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from London to Saint John is February, where tickets cost £491 (return) on average. On the other hand, the most expensive months are January and December, where the average cost of round-trip tickets is £773 and £764 respectively.

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Good to know - Cheap tickets from London to Saint John

Low seasonApril
Best time to beat the crowds (10% less expensive on average)
Most popular time to fly (5% more expensive on average)

When to book flights from London to Saint John

Are your dates flexible? Find out the best times to travel from London to Saint John based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from London to Saint John

  • Which aircraft models fly most regularly from London to Saint John?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from London to Saint John?

    Star Alliance is the only airline alliance operating flights between London and Saint John.

  • How does KAYAK find such low prices on flights from London to Saint John?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from London to Saint John.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London to Saint John?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Saint John from London is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from London to Saint John?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Saint John with an airline and back to London with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London to Saint John?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Saint John from London up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from London to Saint John

 
See real verified KAYAK customer reviews for airlines flying from London to Saint John. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from London to Saint John? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.1
Air CanadaOverall score based on 10815 reviews
6.8Entertainment
6.3Food
7.8Crew
7.3Boarding
7.1Comfort
Airline reviews

Boarding was extremely challenging, long lines and wait time, almost missed my flight.

10.0 ExcellentAnonymous, Mar 2026
ZRH - YUL
Read more Air Canada reviews

Boarding was extremely challenging, long lines and wait time, almost missed my flight.

Boarding a bit chaotic, but that seems to be mostly about extra security in Lima, not AC. Left on-time, arrived slightly early. Good flight

Again, it was delayed and then our connecting aircraft was very cold.

The flight from Lisbon to Toronto was delayed and then our connecting flight in Vancouver was delayed due to “unscheduled maintenance “. We boarded and then had to get off the plane and wait. We were over three hours delayed in Vancouver and missed our final connection to Saskatoon. We were forced to overnight in Vancouver arriving in Saskatoon at noon the next day. That’s over a 12 hour delay getting home.

Departed Palm Springs over an hour late because there’s only one gate, and it has always delayed by the arriving and departing flight to Toronto and the arriving flight from Vancouver.

I checked a bag and there was only one agent to assist all customers with any issues.

It was good, seating was a little tight apart from that all was well.

I liked the flight but the check in was horrendous. I have booked with you before but not ever had to pay extra for luggage, it was not clear on booking, I didn't know there was different categories of economy that meant different allowances. So was alarmed when we had to pay a further £120 at the check-in at a point of not changing.

I wish they gave the earphones earlier rather than when we are already in flight.

Just a two hour flight... boarding was smooth and easy going... flight was smooth... crew very helpful... snack of pretzels was awful, that needs changed...

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

Information on your arrival and departure airports

Saint John (YSJ)