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

Air Canada can get you from Saint John to London, Ontario in just under 4h 22m. Your travel time can differ by up to . There are 1241 km between Saint John and London, Ontario.

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.

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).

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

When flying from Saint John to London, Ontario, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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.

C$ 796+ Cheap Flights from Saint John to London, ON

Cheap flight deals from St John to London

Enter your travel dates to find the best prices.

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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 7 September 2026.

Tue 27/105:15 a.m. -

1 stop4h 22m

Tue 3/119:15 a.m. -

1 stop13h 09m

Deal found 5/9C$ 1,056

Sat 26/125:20 a.m. -

1 stop4h 17m

Mon 18/15:30 a.m. -

1 stop10h 49m

Deal found 7/9C$ 1,164

Tue 24/116:00 p.m. -

1 stop4h 52m

Thu 26/115:30 a.m. -

1 stop10h 49m

Deal found 2/9C$ 1,211

Find flight deals from St John to London

Round-trip from	C$ 1,056
One-way from	C$ 796

Air Canada
27/10-3/11
2 total stops
17h 31m total
Saint John to London

Search Deals

22/9-31/12
3 total stops
23h 25m total
Saint John to London

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Saint JohnLondon

YSJ Saint John - YXU London

YSJYXU

Saint John

Tue 22/9

6:55 a.m.-5:20 a.m.

3 stops23h 25m

London

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 796

Quickest round-trip

Saint JohnLondon

YSJ Saint John - YXU London

YSJYXU

Saint John

Tue 22/9

5:00 a.m.-9:20 a.m.

1 stop5h 20m

London

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 863

Saint JohnLondon

YSJ Saint John - YXU London

YSJYXU

Saint John

Tue 27/10

5:15 a.m.-8:37 a.m.

1 stop4h 22m

London

Tue 3/11

9:15 a.m.-11:24 p.m.

1 stop13h 09m

C$ 1,056

Saint JohnLondon

YSJ Saint John - YXU London

YSJYXU

Saint John

Sat 26/12

5:20 a.m.-8:37 a.m.

1 stop4h 17m

London

Mon 18/1

5:30 a.m.-5:19 p.m.

1 stop10h 49m

C$ 1,164

Saint JohnLondon

YSJ Saint John - YXU London

YSJYXU

Saint John

Tue 24/11

6:00 p.m.-9:52 p.m.

1 stop4h 52m

London

Thu 26/11

5:30 a.m.-5:19 p.m.

1 stop10h 49m

C$ 1,211

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/9

Sorted by cheapest first

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.

YSJ-YXU

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.

Related info for your journey

How long is the flight from Saint John to London, Ontario?
Air Canada can get you from Saint John to London, Ontario in just under 4h 22m. Your travel time can differ by up to . There are 1241 km between Saint John and 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.

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Cheap flights from Saint John to London, ON from C$ 796

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 22/9. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from St John to London

Cheapest flights from St John to LondonExplore 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 7 September 2026.

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 7 September 2026.

Best flights from St John to LondonDiscover carefully curated flight deals from St John to London that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 7 September 2026.

Discover carefully curated flight deals from St John to London that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 7 September 2026.

Last-minute flights from St John to LondonDiscover last-minute flight deals from St John to London. Data last updated 7 September 2026 and is based on user searches.

Discover last-minute flight deals from St John to London. Data last updated 7 September 2026 and is based on user searches.

One-way flights from St John to LondonSearch for one-way flight options from St John to London. Find affordable one-way fares based on user searches. Data last updated 7 September 2026.

Search for one-way flight options from St John to London. Find affordable one-way fares based on user searches. Data last updated 7 September 2026.

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Best time to book a flight from St John to London

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Related info for your journey

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

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

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

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

Travelling to a place near London?

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Alternative routes for St John to London

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Complete your trip

Complete your trip to London by adding a car rental and/or hotel reservation to your travel itinerary.

Direct flights to Ontario

Book a non-stop flight to one of these other cities located in Ontario.

Search flights from St John to London by cabin class

Find flights from St John to London, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Other flights to London

Explore flights to London departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 7 September 2026.

St John and London flights

Browse other St John and London flight options. Last updated on 7 September 2026.

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

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

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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 7 September 2026.

Best flights from St John to London
Discover carefully curated flight deals from St John to London that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 7 September 2026.

Last-minute flights from St John to London
Discover last-minute flight deals from St John to London. Data last updated 7 September 2026 and is based on user searches.

One-way flights from St John to London
Search for one-way flight options from St John to London. Find affordable one-way fares based on user searches. Data last updated 7 September 2026.