Cheap Flights from London to Saint John

Compare London to Saint John flight deals

Find the cheapest month or even day of the year to fly to Saint John

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Flight deals from London to Saint John

Looking for a cheap last-minute deal or the best return flight from London to Saint John? Find the lowest prices on one-way and return tickets right here.

Saint John.$1,240 per passenger.Departing Mon, 21 Sep, returning Mon, 28 Sep.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from London on Mon, 21 Sep, arriving in Saint John.Inbound indirect flight with Air Canada, departs from Saint John on Mon, 28 Sep, arriving in London.Price includes taxes and charges.From $1,240, select.

Find the cheapest month to fly from London to Saint John

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like London to Saint John flights are currently cheapest in September.

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London to Saint John: Alternative routes

Compare routes from London to Saint John below. You may find an airport to fly into that's cheaper, faster, or easier than Saint John.

Saint John

15km from central Saint John

Closest

from $1,242

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Fredericton

75km from central Saint John

Cheapest

from $1,137

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London to Saint John: Flight information

The things to know before you go.

Cheapest flight found	$1,240
Cheapest month to fly	September

Finding cheap flights from London to Saint John: Frequently asked questions

How much are return flights from London to Saint John?

The best price we found for a return flight from London to Saint John is $1,240. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

Which airlines fly direct from London to Saint John?

Currently, there are no airlines that fly direct from London to Saint John. But we found flights with one or more stops from $1,240.

How many flights are there a week from London to Saint John?

As of July 2026, there are no flights flying from London to Saint John.

When is the cheapest time to fly from London to Saint John?

The cheapest month to fly from London to Saint John is usually September.

Which upcoming date is cheapest to fly from London Airport to Saint John Airport on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from London Airport to Saint John Airport on Monday, 21 September 2026.

Can I get a direct flight from London Airport to Saint John Airport?

No airlines currently offer direct flights between London Airport and Saint John Airport. Most routes have one or more stops.

How can I find the best flight deal to Saint John?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Saint John but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to Saint John?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Saint John is around 40 days in advance, so don’t leave your flight to the last minute.

Which is the cheapest airline to fly from London Airport to Saint John with?

Currently, Air Canada offers the cheapest flight tickets to Saint John.

Flying from London International Airport (YXU) to Saint John Airport (YSJ): what you need to know

The timezone in Saint John is UTC-3, which is one hour ahead of London.
Arrive at the airport on time so you don't miss your YXU to YSJ flight. Be there at least two hours ahead for international flights and an hour early for domestic departures to avoid any last-minute rush.
Flying during a peak time such as August? School holidays and other popular seasons can result in longer queues at security. Play things extra safe and get there up to four hours ahead of international flights and two hours before a domestic departure.

How to find the cheapest flights from London International Airport (YXU) to Saint John Airport (YSJ)

At the moment, $590 is the cheapest price we've found for a one-way London International Airport to Saint John Airport flight. The best price for a return ticket is $1,240. Keep in mind that fares can change due to demand at the time of booking.
Don't wait until the last minute. You're more likely to find cheap tickets from YXU to YSJ if you book in advance. Airlines often offer some excellent early bird rates.
The 'Whole month' search tool shows you the cheapest flights from London International Airport to Saint John Airport across the month. It's a great way to find a bargain if your trip dates aren't set in stone.
Finding cheap flights from YXU to YSJ is easy with Price Alerts. All you need to do is set up one of these automatic alerts and we'll let you know when a lower fare pops up.
Discover the perfect flight for you with the help of the filters. To see the 'Cheapest,' 'Best' or 'Fastest' flights from London International Airport to Saint John Airport, use the 'Sort by' function. You can also filter by airline, arrival and departure times, and journey duration.

Handy information about London International Airport (YXU)

50.41% of flights taking off from London International Airport touch down at their destination on time.
To reach London International Airport from central London, it'll take around 20 minutes if you're planning to drive. Of course, this depends on traffic conditions. It's approximately 11 kilometres from the airport to the city centre.
The journey on public transport usually takes 55 minutes.
Looking for a convenient hotel near YXU? If you're boarding an early flight from London International Airport to Saint John Airport, these stays will put you moments from your departure gate:

Arriving at Saint John Airport (YSJ)

If you have a late London International Airport to Saint John Airport flight, few things beat the convenience of being near the terminal. Collect your bags from the carousel and then be tucked up in bed shortly after at one of these hotels near YSJ:
Begin your adventure by picking up a Saint John Airport rental car. Grab your wheels from Alamo, Avis or Budget and experience the lesser-explored corners of Saint John and beyond.
For the best deal, reserve your ride from Saint John Airport about one week before your trip.

Getting from Saint John Airport (YSJ) to central Saint John

Saint John Airport is approximately 24 kilometres from the centre of Saint John. The drive time takes about 20 minutes.
It'll take around 55 minutes to get there by public transport.

When to fly to Saint John Airport (YSJ)

August is the busiest month for flights from London International Airport to Saint John Airport. For smaller crowds, go to Saint John in February.
When booking your flight from London International Airport to Saint John Airport, consider the kind of weather you enjoy. August is the warmest month in Saint John, with temperatures ranging from 13ºC to 23ºC.
Search for cheap tickets from YXU to YSJ in January if you like cooler conditions. Temperatures are at their lowest then, ranging between -12ºC and 1ºC on average.

Explore more of Canada

You've visited Saint John, now it's time to explore more of Canada. Journey around 209 kilometres east to Halifax to tick off its top sights. From Halifax Citadel National Historic Site of Canada to Canadian Museum of Immigration at Pier 21 and The Halifax Public Gardens, you'll have a packed itinerary ahead.
If you're eager to discover another major stop in Canada, head for Sherbrooke, roughly 451 kilometres west of Saint John. Grand Saule Garden, ON SE FAIT DU CINÉMA (murale #11) and Dam Park are among the biggest draws.