Find flights
When to book
Airlines
FAQs

Cheap flights from Saint John to London, ON from C$ 554

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 15/5. Fares are subject to change and may not be available on all flights or dates of travel.
YSJ — YXU
25 Feb — 4 Mar1
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 (YXU). 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 20 February 2025.

Round-trip from

C$ 908

One-way from

C$ 554
Air Canada
  • Air Canada
  • 10/4-13/4
  • 3 total stops
  • 14h 02m total
  • Saint John to London
Search Deals
Air Canada
  • Air Canada
  • 15/5
  • 1 total stop
  • 4h 28m total
  • Saint John to London
Search Deals

Find flight deals from St John to London

Cheapest flights from St John to London
Explore the most affordable flight options available from St John to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 20 February 2025.

Thu 10/45:20 a.m.YSJ - YXU
1 stop4h 53mAir Canada
Sun 13/45:15 a.m.YXU - YSJ
2 stops9h 09mAir Canada
Deal found 19/2C$ 908

Find flights from St John to London within your budget

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 20 February 2025.

Fly from

St John

Fly to

London

Route

Depart

Return

Price

Saint JohnLondon

YSJ - YXU

YSJYXU

Saint John

Thu 10/4

5:20 a.m.-9:13 a.m.

1 stop4h 53m

London

Sun 13/4

5:15 a.m.-3:24 p.m.

2 stops9h 09m

C$ 908

Saint JohnLondon

YSJ - YXU

YSJYXU

Saint John

Thu 15/5

5:50 a.m.-9:18 a.m.

1 stop4h 28m

C$ 554

Flights are sorted by cheapest round-trip flights first.

Deals found on 20/2

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.

Travel insights for flights from St John to London

Get recent, data-driven insights about flights from St John to London including ideal travel times, pricing trends, and more.

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

Currently, October is the cheapest month in which you can book a flight from Saint John to London, Ontario (average of C$ 243). Flying from Saint John to London, Ontario in April is currently the most expensive (average of C$ 496). 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, Ontario ranges from 70.0 - 100.0 mm per month. January is typically the wettest month, when rainfall can reach 100.0 mm. March is typically the driest time to visit London, Ontario when rainfall is around 70.0 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, Ontario, 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 20.0 C. Travellers hoping to avoid the cold should look outside of February, when temperatures are typically at their lowest (around -6.0 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 20 February 2025.
Air Canada
7.0
Good
8,748 reviews
Check prices

Entertainment

6.8

Boarding

7.3

Overall

7.0

Comfort

7.0

Food

6.2

Crew

7.8

Reviews

1 / 20

6.0
Good

Kiarash,Dec 2024

YVR - YYZ

The video streaming system or the internet were completely down, we couldn't work with the LCD at all, because everything was down during the trip, so it was a frustrating trip.

Air Canada
7.0
Good
8,748 reviews
Air Canada
7.0
Good
8,748 reviews
Check prices

Entertainment

6.8

Boarding

7.3

Overall

7.0

Comfort

7.0

Food

6.2

Crew

7.8

Reviews

1 / 20

6.0
Good

Kiarash,Dec 2024

YVR - YYZ

The video streaming system or the internet were completely down, we couldn't work with the LCD at all, because everything was down during the trip, so it was a frustrating trip.

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 is the cheapest airline to fly from Saint John to London, Ontario round-trip?

    According to our current data, Air Canada (C$ 908), offers the cheapest pricing from Saint John to London, Ontario.

  • 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, Ontario?

    Currently, October is the cheapest month in which you can book a flight from Saint John to London, Ontario (average of C$ 243). Flying from Saint John to London, Ontario in April is currently the most expensive (average of C$ 496). 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
Grand Bend
Port Stanley

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Fly with Cheapflights

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

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

Cheapflights makes it easy to find St John to London flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from St John to London for you. Better yet — we are completely free to use.

Can Cheapflights find flights from St John to London with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from St John to London flexibly with Cheapflights today.

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.

100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.