How long is the flight from London, Ontario to Saint John?

There are many flights that can get you from London, Ontario to Saint John in 12h 56m. Fly via Air Canada to get the fastest option. Airlines will cover a distance of 1241 km.

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

Cheapflights users have booked flights from London, Ontario to Saint John round-trip from C$ 1,036. Air Canada is 18% cheaper than the average price of flights available within the next 90 days to this destination.

What is the cheapest day to fly from London, Ontario to Saint John?

Travelers seeking maximum savings on their London, Ontario to Saint John flight should consider departing on Saturday mornings when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Saint John ranges from 82.0 - 134.0 mm per month. November is typically the wettest month, when rainfall can reach 134.0 mm. August is typically the driest time to visit Saint John when rainfall is around 82.0 mm.

If weather is an important factor for your trip to Saint John, 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 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -8.0 C).

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

Thursday flights are found to be more expensive to fly from London, Ontario to Saint John. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Saint John.

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

Due to multiple factors, expect to potentially pay more when booking in March. For low rates, October can be a great choice for travel to Saint John. Flights to Saint John from London, Ontario in October are about C$ 1,275 on average during October, but can be found for as low as C$ 567.

What is the cheapest time of day to fly from YXU to YSJ?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from London, Ontario to Saint John as you normally would.

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 vacation 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.

C$ 1,009+ Flights from London, ON to Saint John

Cheap flight deals from London to St John

Round-trip from	C$ 1,009
Popular in	March
Cheapest in	October
Average price	C$ 1,232

Air Canada
2/10-9/10
2 total stops
17h 18m total
London to Saint John

Search Deals

Highest demand for flights based on searches. 19% potential increase in price (C$ 420 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 7% potential price decrease (C$ 118 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in September 2025

Search Deals

Find flight deals from London to St John

Cheapest flights from London to St John
Explore the most affordable flight options available from London to St John. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 September 2025.

Thu 2/109:55 a.m.YXU - YSJ

1 stop12h 56mAir Canada

Thu 9/105:55 a.m.YSJ - YXU

1 stop4h 22mAir Canada

Deal found 9/9C$ 1,009

Thu 2/103:40 p.m.YXU - YSJ

1 stop7h 11mAir Canada

Fri 10/105:55 a.m.YSJ - YXU

1 stop4h 22mAir Canada

Deal found 9/9C$ 1,025

Mon 22/910:00 a.m.YXU - YSJ

1 stop13h 11mAir Canada

Mon 29/96:40 p.m.YSJ - YXU

1 stop3h 49mAir Canada

Deal found 9/9C$ 1,506

Best flights from London to St John
Discover carefully curated flight deals from London to St John that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 11 September 2025.

Thu 2/109:55 a.m.YXU - YSJ

1 stop12h 56mAir Canada

Thu 9/105:55 a.m.YSJ - YXU

1 stop4h 22mAir Canada

Deal found 9/9C$ 1,009

Thu 2/103:40 p.m.YXU - YSJ

1 stop7h 11mAir Canada

Fri 10/105:55 a.m.YSJ - YXU

1 stop4h 22mAir Canada

Deal found 9/9C$ 1,025

Mon 22/910:00 a.m.YXU - YSJ

1 stop13h 11mAir Canada

Mon 29/96:40 p.m.YSJ - YXU

1 stop3h 49mAir Canada

Deal found 9/9C$ 1,506

Last-minute flights from London to St John
Discover last-minute flight deals from London to St John. Data last updated 11 September 2025 and is based on user searches.

Mon 22/910:00 a.m.YXU - YSJ

1 stop13h 11mAir Canada

Mon 29/96:40 p.m.YSJ - YXU

1 stop3h 49mAir Canada

Deal found 9/9C$ 1,506

Thu 2/109:55 a.m.YXU - YSJ

1 stop12h 56mAir Canada

Thu 9/105:55 a.m.YSJ - YXU

1 stop4h 22mAir Canada

Deal found 9/9C$ 1,009

Thu 2/103:40 p.m.YXU - YSJ

1 stop7h 11mAir Canada

Fri 10/105:55 a.m.YSJ - YXU

1 stop4h 22mAir Canada

Deal found 9/9C$ 1,025

Fly from

Fly to

Route

Depart

Return

Price

LondonSaint John

YXU - YSJ

YXUYSJ

London

Thu 2/10

9:55 a.m.-11:51 p.m.

1 stop12h 56m

Saint John

Thu 9/10

5:55 a.m.-9:17 a.m.

1 stop4h 22m

C$ 1,009

LondonSaint John

YXU - YSJ

YXUYSJ

London

Thu 2/10

3:40 p.m.-11:51 p.m.

1 stop7h 11m

Saint John

Fri 10/10

5:55 a.m.-9:17 a.m.

1 stop4h 22m

C$ 1,025

LondonSaint John

YXU - YSJ

YXUYSJ

London

Mon 22/9

10:00 a.m.-12:11 a.m.

1 stop13h 11m

Saint John

Mon 29/9

6:40 p.m.-9:29 p.m.

1 stop3h 49m

C$ 1,506

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

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 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.

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, Ontario to Saint John?

Currently, May is the cheapest month in which you can book a flight from London, Ontario to Saint John (average of C$ 213). Flying from London, Ontario to Saint John in December is currently the most expensive (average of C$ 461). 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

Check out reviews from past customers who have flown with Air Canada from London to Saint John to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Air Canada

7.1

Good

10,000 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

janet,Sep 2025

YOW - YYZ

Really appreciated the leg room despite purchasing an economy ticket. Appreciated the extra complimentary wine. Nice touch. Was given immediate support without asking at check in, at the machine!! Ottawa's boarding was very organized with distinct rows in waiting room. Allowed for the main hall to not be blocked by people waiting to board.

Air Canada

7.1

Good

10,000 reviews

Air Canada

7.1

Good

10,000 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

janet,Sep 2025

YOW - YYZ

Related info for your journey

How long is the flight from London, Ontario to Saint John?
There are many flights that can get you from London, Ontario to Saint John in 12h 56m. Fly via Air Canada to get the fastest option. Airlines will cover a distance of 1241 km.
What is the cheapest airline to fly from London, Ontario to Saint John round-trip?
Cheapflights users have booked flights from London, Ontario to Saint John round-trip from C$ 1,036. Air Canada is 18% cheaper than the average price of flights available within the next 90 days to this destination.
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 vacation 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, Ontario to Saint John?
Currently, May is the cheapest month in which you can book a flight from London, Ontario to Saint John (average of C$ 213). Flying from London, Ontario to Saint John in December is currently the most expensive (average of C$ 461). 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

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Top airline flying from London to St John

Airline	Cheapest	Average	Flexibility	On-time
Air Canada	CheapestC$ 1,036	AverageC$ 1,237	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights

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

Cheapflights makes it easy to find London to St John 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 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?

Certainly. Search results for flights to St John from London shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from London to St John become cheaper?

Not ready to book yet? You can track prices for flights from London to St John on Cheapflights with our Price Alert feature and get notified when better prices are available.

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Cheap flights from London, ON to Saint John from C$ 1,009

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from London to St John

Round-trip from

Popular in

Cheapest in

Average price

Find flight deals from London to St John

Cheapest flights from London to St JohnExplore the most affordable flight options available from London to St John. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 September 2025.

Explore the most affordable flight options available from London to St John. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 September 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from London to Saint John that are best for you.

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.

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, Ontario to Saint John?

Reviews of airlines servicing St John

Check out reviews from past customers who have flown with Air Canada from London to Saint John to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

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.

How long is the flight from London, Ontario to Saint John?

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

Can I find deals for flights from London to St John that include hotel bookings?

How can I find direct flights from London to St John?

Can I find deals for business class flights from London to St John?

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

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.

Alternative routes for London to St John

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from London to St John

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 London to St John?

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

Can Cheapflights 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?

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from London to St John
Explore the most affordable flight options available from London to St John. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 September 2025.