What is the cheapest airline that flies from Saint John to London?

Air Canada is the most popular carrier operating from Saint John to London

When did momondo last update prices for flights from Saint John Airport to London?

Prices for flights from Saint John Airport to London were last updated today.

How many operators does momondo search for flights from Saint John Airport to London?

There is 1 operator available for flights from Saint John Airport to London as of December 2025.

How old do you have to be to fly from Saint John Airport to London?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Saint John Airport to London.

What documentation or ID do you need to fly to London?

The travel and health documents required for your trip to London can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at London. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

C$ 611 Cheap Flights from Saint John to London in 2025/26

1 adult

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Find the cheapest flights from Saint John to London

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

5:40 a.m. - 7:10 a.m.

YSJ

LHR

45h 30m2 stops

1:45 p.m. - 10:39 a.m.

LHR

YSJ

48h 54m2 stops

C$ 1,706Air Canada

Sun, 4 Jan - Sun, 11 Jan

5:40 a.m. - 7:10 a.m.

YSJ

LHR

45h 30m2 stops

1:25 p.m. - 3:40 p.m.

LHR

YSJ

30h 15m1 stop

C$ 1,746Multiple Airlines

Sun, 4 Jan - Sun, 11 Jan

4:15 p.m. - 7:10 a.m.

YSJ

LHR

10h 55m1 stop

1:00 p.m. - 10:39 a.m.

LHR

YSJ

25h 39m1 stop

C$ 1,945Air Canada

Sun, 4 Jan - Sun, 11 Jan

4:15 p.m. - 8:35 p.m.

YSJ

LHR

24h 20m2 stops

9:00 a.m. - 11:29 p.m.

LHR

YSJ

18h 29m2 stops

C$ 2,079Air Canada

Mon, 16 Feb - Wed, 18 Feb

4:15 p.m. - 7:10 a.m.

YSJ

LHR

10h 55m1 stop

6:50 a.m. - 3:40 p.m.

LHR

YSJ

12h 50m2 stops

C$ 2,081Air Canada

Mon, 16 Feb - Wed, 18 Feb

4:15 p.m. - 8:35 p.m.

YSJ

LHR

24h 20m2 stops

6:50 a.m. - 3:40 p.m.

LHR

YSJ

12h 50m2 stops

C$ 2,093Air Canada

Mon, 16 Feb - Wed, 18 Feb

4:15 p.m. - 7:10 a.m.

YSJ

LHR

10h 55m1 stop

6:50 a.m. - 3:40 p.m.

LHR

YSJ

12h 50m2 stops

C$ 2,094Air Canada

Mon, 16 Feb - Wed, 18 Feb

4:15 p.m. - 7:10 a.m.

YSJ

LHR

10h 55m1 stop

11:10 a.m. - 11:29 p.m.

LHR

YSJ

16h 19m1 stop

C$ 2,252Air Canada

Mon, 16 Feb - Wed, 18 Feb

4:15 p.m. - 7:10 a.m.

YSJ

LHR

10h 55m1 stop

1:00 p.m. - 11:29 p.m.

LHR

YSJ

14h 29m1 stop

C$ 2,267Air Canada

Mon, 16 Feb - Wed, 18 Feb

Air Canada flights from Saint John to London

Our best Air Canada deals on Saint John to London flight tickets

Air Canada

4 Jan

YSJ5:40 a.m.Saint John

45h 30m

2 stops

LHR7:10 a.m.London Heathrow

11 Jan

LHR1:45 p.m.London Heathrow

48h 54m

2 stops

YSJ10:39 a.m.Saint John

C$ 1,706

Find similar

Air Canada

4 Jan

YSJ4:15 p.m.Saint John

10h 55m

1 stop

LHR7:10 a.m.London Heathrow

11 Jan

LHR1:00 p.m.London Heathrow

25h 39m

1 stop

YSJ10:39 a.m.Saint John

C$ 1,945

Find similar

Air Canada

16 Feb

YSJ4:15 p.m.Saint John

24h 20m

2 stops

LHR8:35 p.m.London Heathrow

18 Feb

LHR9:00 a.m.London Heathrow

18h 29m

2 stops

YSJ11:29 p.m.Saint John

C$ 2,079

Find similar

Fly from

Fly to

Route

Depart

Return

Price

Saint JohnLondon

YSJ - LHR

YSJLHR

Saint John

Sun 4/1

5:40 a.m.-7:10 a.m.

2 stops45h 30m

London Heathrow

Sun 11/1

1:45 p.m.-10:39 a.m.

2 stops48h 54m

C$ 1,706

Saint JohnLondon

YSJ - LHR

YSJLHR

Saint John

Sun 4/1

5:40 a.m.-7:10 a.m.

2 stops45h 30m

London Heathrow

Sun 11/1

1:25 p.m.-3:40 p.m.

1 stop30h 15m

C$ 1,746

Saint JohnLondon

YSJ - LHR

YSJLHR

Saint John

Sun 4/1

4:15 p.m.-7:10 a.m.

1 stop10h 55m

London Heathrow

Sun 11/1

1:00 p.m.-10:39 a.m.

1 stop25h 39m

C$ 1,945

Saint JohnLondon

YSJ - LHR

YSJLHR

Saint John

Mon 16/2

4:15 p.m.-8:35 p.m.

2 stops24h 20m

London Heathrow

Wed 18/2

9:00 a.m.-11:29 p.m.

2 stops18h 29m

C$ 2,079

Saint JohnLondon

YSJ - LHR

YSJLHR

Saint John

Mon 16/2

4:15 p.m.-7:10 a.m.

1 stop10h 55m

London Heathrow

Wed 18/2

6:50 a.m.-3:40 p.m.

2 stops12h 50m

C$ 2,081

Saint JohnLondon

YSJ - LHR

YSJLHR

Saint John

Mon 16/2

4:15 p.m.-8:35 p.m.

2 stops24h 20m

London Heathrow

Wed 18/2

6:50 a.m.-3:40 p.m.

2 stops12h 50m

C$ 2,093

Saint JohnLondon

YSJ - LHR

YSJLHR

Saint John

Mon 16/2

4:15 p.m.-7:10 a.m.

1 stop10h 55m

London Heathrow

Wed 18/2

6:50 a.m.-3:40 p.m.

2 stops12h 50m

C$ 2,094

Saint JohnLondon

YSJ - LHR

YSJLHR

Saint John

Mon 16/2

4:15 p.m.-7:10 a.m.

1 stop10h 55m

London Heathrow

Wed 18/2

11:10 a.m.-11:29 p.m.

1 stop16h 19m

C$ 2,252

Saint JohnLondon

YSJ - LHR

YSJLHR

Saint John

Mon 16/2

4:15 p.m.-7:10 a.m.

1 stop10h 55m

London Heathrow

Wed 18/2

1:00 p.m.-11:29 p.m.

1 stop14h 29m

C$ 2,267

Saint JohnLondon

YSJ - LHR

YSJLHR

Saint John

Wed 21/1

5:40 a.m.-12:50 p.m.

3 stops27h 10m

C$ 611

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 resultsSorted by cheapest first

How to get the cheapest flight ticket from Saint John to London

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest day to depart on your flight to London?

According to our data, Monday is the cheapest day to fly to London from Saint John. The lowest ticket price found for a Monday departure recently was C$ 1,108. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Saint John to London for around C$ 1,347.

When to book flights from Saint John to London

Are you open to changing your travel dates? Check out the ideal times to fly from Saint John to London according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Saint John to London (YSJ to LON) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Saint John to London

Fastest flight time	34h 05m
Direct flights	None

The fastest flight from Saint John to London takes 34h 05m

There are no direct flights from Saint John to London. There are no popular flight routes from Saint John to London.

Search flight deals

How far is Saint John to London by plane?
There are 4747.7 km between Saint John and London. By plane, this route typically takes 10h 55m.
When did momondo last update prices for flights from Saint John Airport to London?
Prices for flights from Saint John Airport to London were last updated today.
How many operators does momondo search for flights from Saint John Airport to London?
There is 1 operator available for flights from Saint John Airport to London as of December 2025.
How old do you have to be to fly from Saint John Airport to London?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Saint John Airport to London.
What documentation or ID do you need to fly to London?
The travel and health documents required for your trip to London can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at London. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular airline from Saint John to London?
Based on momondo bookings for flights between Saint John and London, the leading airline is Air Canada, making up 100% of the total bookings.

Best airlines flying from Saint John to London

Compare and see reviews for airlines that fly from Saint John to London with momondo

Airline	Rating	Free Cancellation	Price
Air Canada	PriceFrom C$ 1,153	Free Cancellation	Rating 7.1 10,512 reviews		Search Air Canada flights

Hounslow

Ipswich

Dartford

Gatwick

Ilford

Chelmsford

Wokingham

Slough

Feltham

Hayes

Uxbridge

Wembley

Waterlooville

Newport

Basingstoke

Milton Keynes

Dover

Worthing

Maidstone

Woking

Why use momondo?

Why should I use momondo to find a flight deal from Saint John to London?

It is quick and easy to find Saint John to London flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to London that suits you.

Can I find flights from Saint John to London with flexible booking policies on momondo?

Yes. All flights to London from Saint John on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Saint John to London?

Once you have performed a search for Saint John to London flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Saint John to London right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Saint John to London flights. All you need is a valid email address and we will do the rest; it is that quick and easy.