£449 Cheap Flights from London (LHR) to Saint John (YSJ)

View £449 flight on Sat, 10 Oct 2026Opens in a new window

Popular airlines from Heathrow Airport (LHR) to Saint John, NB (YSJ)

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Cheap Flights from London (LHR) to Saint John (YSJ)

Prices were available within the past 7 days and start at £449 for one-way flights and £597 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Sat, 6 Jun - Sun, 7 Jun
LHR
London
YSJ
Saint John
£597 Return, found 4 days ago
£597
Return
found 4 days ago
Select Air Canada flight, departing Sat, 6 Jun from London to Saint John, returning Sun, 7 Jun, priced at £597 found 4 days ago
Air Canada
Fri, 11 Sept - Fri, 18 Sept
LHR
London
YSJ
Saint John
£600 Return, found 2 days ago
£600
Return
found 2 days ago
Select Air Canada flight, departing Fri, 11 Sept from London to Saint John, returning Fri, 18 Sept, priced at £600 found 2 days ago
Air Canada
Sat, 20 Jun - Sun, 21 Jun
LHR
London
YSJ
Saint John
£601 Return, found 2 days ago
£601
Return
found 2 days ago
Select Air Canada flight, departing Sat, 20 Jun from London to Saint John, returning Sun, 21 Jun, priced at £601 found 2 days ago
Air Canada
Fri, 11 Sept - Sun, 20 Sept
LHR
London
YSJ
Saint John
£604 Return, found 2 days ago
£604
Return
found 2 days ago
Select Air Canada flight, departing Fri, 11 Sept from London to Saint John, returning Sun, 20 Sept, priced at £604 found 2 days ago
Air Canada
Wed, 3 Jun - Sat, 4 Jul
LHR
London
YSJ
Saint John
£605 Return, found 4 days ago
£605
Return
found 4 days ago
Select Air Canada flight, departing Wed, 3 Jun from London to Saint John, returning Sat, 4 Jul, priced at £605 found 4 days ago
Air Canada
Thu, 4 Jun - Thu, 18 Jun
LHR
London
YSJ
Saint John
£609 Return, found 4 days ago
£609
Return
found 4 days ago
Select Air Canada flight, departing Thu, 4 Jun from London to Saint John, returning Thu, 18 Jun, priced at £609 found 4 days ago
Air Canada
Sun, 21 Jun - Mon, 29 Jun
LHR
London
YSJ
Saint John
£611 Return, found 4 days ago
£611
Return
found 4 days ago
Select Air Canada flight, departing Sun, 21 Jun from London to Saint John, returning Mon, 29 Jun, priced at £611 found 4 days ago
Air Canada
Sun, 21 Jun - Mon, 29 Jun
LHR
London
YSJ
Saint John
£613 Return, found 4 days ago
£613
Return
found 4 days ago
Select Air Canada flight, departing Sun, 21 Jun from London to Saint John, returning Mon, 29 Jun, priced at £613 found 4 days ago
Air Canada
Thu, 18 Jun - Sun, 21 Jun
LHR
London
YSJ
Saint John
£614 Return, found 11 hours ago
£614
Return
found 11 hours ago
Select Air Canada flight, departing Thu, 18 Jun from London to Saint John, returning Sun, 21 Jun, priced at £614 found 11 hours ago
United
Sun, 21 Jun - Mon, 29 Jun
LHR
London
YSJ
Saint John
£721 Return, found 4 days ago
£721
Return
found 4 days ago
Select United flight, departing Sun, 21 Jun from London to Saint John, returning Mon, 29 Jun, priced at £721 found 4 days ago

Alternative airports near Saint John

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Saint John, NB YSJ. Cheapest and Closest option available. Average driving time to city centre is 19 minutes. Flights from £650
YSJ
Saint John, NB
CheapestClosest
Average driving time to city centre19 min
Flights from £650

Frequently asked questions

How much does a flight from London (LHR-Heathrow) to Saint John, NB (YSJ) cost?
One-way flights typically cost between $2,698 and $7,625 and return flights often range between $2,698 and $7,625. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Anaa (AAA) to Toronto, ON (YYZ-Pearson Intl.) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
How do I find cheap flights from London (LHR-Heathrow) to Saint John, NB (YSJ)?
To find a cheap flight from London (LHR-Heathrow) to Saint John, NB (YSJ), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from London (LHR-Heathrow) to Saint John, NB (YSJ)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from London (LHR-Heathrow) to Saint John, NB (YSJ)?
There are approximately 33 connecting flights per day from London Heathrow (LHR) to Saint John, NB (YSJ). Some common connection points include Liberty Intl. (EWR), Pearson Intl. (YYZ), and (DUB).
What is the earliest flight from London (LHR-Heathrow) to Saint John, NB (YSJ)?
Sort flights by "Departure (earliest)" on Expedia to find the earliest flight from LHR to YSJ. To compare more early flights, use the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from London (LHR-Heathrow) to Saint John, NB (YSJ)?
You'll typically find the most flights from London Heathrow (LHR) to Saint John, NB (YSJ) on a Friday, with around 49 flights available. This gives you a good selection of options for your journey. Major airlines on this route include United Airlines, Air Canada, and Aer Lingus. Flight schedules are consistent throughout the week, with only a slight variation in the number of flights.
What are the most popular departure times for flights from London (LHR-Heathrow) to Saint John, NB (YSJ)?
The most popular departure times for flights from London Heathrow (LHR) to Saint John, NB (YSJ) are in the morning, from 6am to 9am. About 39% of passengers prefer this time window. Many major carriers, including United Airlines and Air Canada, offer flights during this window. This timing works well because it allows you to start your journey early and arrive at your destination with plenty of time left in the day.
How long does it take to fly from London (LHR-Heathrow) to Saint John, NB (YSJ)?
Flights from LHR to YSJ with one stop typically take around 15 hours 50 minutes, covering approximately 2,930 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from London (LHR-Heathrow) to Saint John, NB (YSJ)?
Select the "Business class" and "First class" filters when looking for LHR to YSJ flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a London (LHR-Heathrow) to Saint John, NB (YSJ) flight with Expedia?
It's easy to earn miles on a London (LHR-Heathrow) to Saint John, NB (YSJ) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
Is it cheaper to buy a plane ticket from London (LHR-Heathrow) to Saint John, NB (YSJ) at the last minute?
Typically, booking a last minute flight from London (LHR-Heathrow) to Saint John, NB (YSJ) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a London (LHR-Heathrow) to Saint John, NB (YSJ) flight and hotel package?
Securing a London (LHR-Heathrow) to Saint John, NB (YSJ) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from London (LHR-Heathrow) to Saint John, NB (YSJ)?
If you booked your London (LHR-Heathrow) to Saint John, NB (YSJ) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Heathrow
Destination airport
Saint John
Airlines serving
Air Canada
Return price
£597
Distance
4687 km

Book with confidence

Compare flights from London to Saint John easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from London to Saint John. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Saint John in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Heathrow to Saint John.  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Heathrow (LHR) to Saint John (YSJ)

The easiest way to view the best deals on flights from London to Saint John today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Heathrow to Saint John start at just £597 and range up to £813.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near London and Saint John
  • booking your flight during June, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your London to Saint John flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Heathrow to Saint John for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Compare flights from London to Saint John easily and book with confidence

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*Available to Expedia members.