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 September 2026.

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$ 557 Cheap Flights from Saint John to London in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Saint John to London

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

4:40 p.m. - 6:55 a.m.YSJ Saint John-LHR London Heathrow

34h 15m2 stops Montreal Pierre Elliott Trudeau Intl Washington, D.C. Dulles Intl

12:00 p.m. - 3:59 p.m.LHR London Heathrow-YSJ Saint John

31h 59m2 stops Newark Montreal Pierre Elliott Trudeau Intl

C$ 1,151United Airlines

Fri, 2 Oct - Sat, 10 Oct

5:00 a.m. - 5:55 a.m.YSJ Saint John-LHR London Heathrow

20h 55m2 stops Toronto Pearson Intl Newark

6:00 p.m. - 3:59 p.m.LHR London Heathrow-YSJ Saint John

25h 59m2 stops Newark Montreal Pierre Elliott Trudeau Intl

C$ 1,154United Airlines

Fri, 2 Oct - Sat, 10 Oct

5:00 a.m. - 5:55 a.m.YSJ Saint John-LHR London Heathrow

20h 55m2 stops Toronto Pearson Intl Newark

6:00 p.m. - 3:59 p.m.LHR London Heathrow-YSJ Saint John

25h 59m2 stops Newark Montreal Pierre Elliott Trudeau Intl

C$ 1,155United Airlines

Fri, 2 Oct - Sat, 10 Oct

4:40 p.m. - 9:25 p.m.YSJ Saint John-LHR London Heathrow

24h 45m2 stops Montreal Pierre Elliott Trudeau Intl Newark

11:05 a.m. - 11:51 p.m.LHR London Heathrow-YSJ Saint John

16h 46m2 stops Chicago O'Hare Intl Toronto Pearson Intl

C$ 1,155United Airlines

Tue, 22 Sep - Tue, 29 Sep

11:05 a.m. - 6:20 a.m.YSJ Saint John-LHR London Heathrow

15h 15m2 stops Montreal Pierre Elliott Trudeau Intl Newark

6:00 p.m. - 10:25 a.m.LHR London Heathrow-YSJ Saint John

44h 25m2 stops Newark Montreal Pierre Elliott Trudeau Intl

C$ 1,158United Airlines

Mon, 1 Feb - Fri, 5 Feb

5:00 a.m. - 5:55 a.m.YSJ Saint John-LHR London Heathrow

21h 55m2 stops Toronto Pearson Intl Chicago O'Hare Intl

4:20 p.m. - 10:25 a.m.LHR London Heathrow-YSJ Saint John

46h 05m2 stops Washington, D.C. Dulles Intl Montreal Pierre Elliott Trudeau Intl

C$ 1,158United Airlines

Sun, 25 Oct - Sun, 1 Nov

11:05 a.m. - 6:20 a.m.YSJ Saint John-LHR London Heathrow

15h 15m2 stops Montreal Pierre Elliott Trudeau Intl Newark

6:00 p.m. - 10:25 a.m.LHR London Heathrow-YSJ Saint John

44h 25m2 stops Newark Montreal Pierre Elliott Trudeau Intl

C$ 1,161United Airlines

Mon, 1 Feb - Fri, 5 Feb

6:00 p.m. - 9:10 a.m.YSJ Saint John-LHR London Heathrow

35h 10m2 stops Toronto Pearson Intl Newark

12:00 p.m. - 10:25 a.m.LHR London Heathrow-YSJ Saint John

26h 25m2 stops Newark Montreal Pierre Elliott Trudeau Intl

C$ 1,163United Airlines

Mon, 18 Jan - Fri, 22 Jan

11:05 a.m. - 7:10 a.m.YSJ Saint John-LHR London Heathrow

16h 05m1 stop Montreal Pierre Elliott Trudeau Intl

6:00 a.m. - 10:25 a.m.LHR London Heathrow-YSJ Saint John

32h 25m2 stops Vienna Intl Montreal Pierre Elliott Trudeau Intl

C$ 1,313Air Canada

Mon, 18 Jan - Fri, 22 Jan

11:05 a.m. - 7:10 a.m.YSJ Saint John-LHR London Heathrow

16h 05m1 stop Montreal Pierre Elliott Trudeau Intl

6:00 a.m. - 10:25 a.m.LHR London Heathrow-YSJ Saint John

32h 25m2 stops Vienna Intl Montreal Pierre Elliott Trudeau Intl

C$ 1,314Air Canada

Mon, 18 Jan - Fri, 22 Jan

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United Airlines flights from Saint John to London

Our best United Airlines deals on Saint John to London flight tickets

United Airlines

12 Sep

YSJ4:40 p.m.Saint John

34h 35m

2 stops

LHR7:15 a.m.London Heathrow

19 Sep

LHR6:00 p.m.London Heathrow

25h 59m

2 stops

YSJ3:59 p.m.Saint John

C$ 1,147

United Airlines

2 Oct

YSJ4:40 p.m.Saint John

34h 15m

2 stops

LHR6:55 a.m.London Heathrow

10 Oct

LHR12:00 p.m.London Heathrow

31h 59m

2 stops

YSJ3:59 p.m.Saint John

C$ 1,151

United Airlines

2 Oct

YSJ5:00 a.m.Saint John

20h 55m

2 stops

LHR5:55 a.m.London Heathrow

10 Oct

LHR6:00 p.m.London Heathrow

25h 59m

2 stops

YSJ3:59 p.m.Saint John

C$ 1,154

Air Canada flights from Saint John to London

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

Air Canada

18 Jan

YSJ11:05 a.m.Saint John

16h 05m

1 stop

LHR7:10 a.m.London Heathrow

22 Jan

LHR6:00 a.m.London Heathrow

32h 25m

2 stops

YSJ10:25 a.m.Saint John

C$ 1,314

Air Canada

2 Oct

YSJ4:40 p.m.Saint John

13h 20m

1 stop

LHR10:00 a.m.London Heathrow

10 Oct

LHR6:50 a.m.London Heathrow

21h 01m

2 stops

YSJ11:51 p.m.Saint John

C$ 1,317

Air Canada

25 Oct

YSJ5:00 a.m.Saint John

24h 30m

1 stop

LHR8:30 a.m.London Heathrow

1 Nov

LHR6:00 a.m.London Heathrow

21h 24m

2 stops

YSJ11:24 p.m.Saint John

C$ 1,318

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Fri 2/10

4:40 p.m.-6:55 a.m.

2 stops34h 15m

London Heathrow

Sat 10/10

12:00 p.m.-3:59 p.m.

2 stops31h 59m

C$ 1,151

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Fri 2/10

5:00 a.m.-5:55 a.m.

2 stops20h 55m

London Heathrow

Sat 10/10

6:00 p.m.-3:59 p.m.

2 stops25h 59m

C$ 1,154

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Fri 2/10

5:00 a.m.-5:55 a.m.

2 stops20h 55m

London Heathrow

Sat 10/10

6:00 p.m.-3:59 p.m.

2 stops25h 59m

C$ 1,155

Quickest round-trip

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Tue 22/9

4:40 p.m.-9:25 p.m.

2 stops24h 45m

London Heathrow

Tue 29/9

11:05 a.m.-11:51 p.m.

2 stops16h 46m

C$ 1,155

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Mon 1/2

11:05 a.m.-6:20 a.m.

2 stops15h 15m

London Heathrow

Fri 5/2

6:00 p.m.-10:25 a.m.

2 stops44h 25m

C$ 1,158

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Sun 25/10

5:00 a.m.-5:55 a.m.

2 stops21h 55m

London Heathrow

Sun 1/11

4:20 p.m.-10:25 a.m.

2 stops46h 05m

C$ 1,158

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Mon 1/2

11:05 a.m.-6:20 a.m.

2 stops15h 15m

London Heathrow

Fri 5/2

6:00 p.m.-10:25 a.m.

2 stops44h 25m

C$ 1,161

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Mon 18/1

6:00 p.m.-9:10 a.m.

2 stops35h 10m

London Heathrow

Fri 22/1

12:00 p.m.-10:25 a.m.

2 stops26h 25m

C$ 1,163

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Mon 18/1

11:05 a.m.-7:10 a.m.

1 stop16h 05m

London Heathrow

Fri 22/1

6:00 a.m.-10:25 a.m.

2 stops32h 25m

C$ 1,313

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Mon 18/1

11:05 a.m.-7:10 a.m.

1 stop16h 05m

London Heathrow

Fri 22/1

6:00 a.m.-10:25 a.m.

2 stops32h 25m

C$ 1,314

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 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

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 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

Best price found	C$ 557
Fastest flight time	15h 15m
Direct flights	None

The best one-way flight to London from Saint John in the past 72 hours is C$ 557. The best round-trip flight deal from Saint John to London found on momondo in the last 72 hours is C$ 1,151.

The fastest flight from Saint John to London takes 15h 15m

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

Search flight deals

Frequently asked questions about flying from Saint John to London

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 15h 15m.
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 September 2026.
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$ 1,279	Free Cancellation	Rating 7.1 11,611 reviews		Search Air Canada flights

Hounslow

Milton Keynes

Gatwick

Wembley

Staines-upon-Thames

Slough

Banbury

Ramsgate

Wokingham

Watford

Dartford

Feltham

Eastbourne

Hayes

Crawley

Waterlooville

Croydon

Richmond

Basingstoke

Enfield

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.

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Cheap flights from Saint John to London from C$ 557

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Saint John to London departing on 23/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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United Airlines flights from Saint John to London

Our best United Airlines deals on Saint John to London flight tickets

Air Canada flights from Saint John to London

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

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

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

When to book flights from Saint John to London

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

Best price found

Fastest flight time

Direct flights

Frequently asked questions about flying from Saint John to London

Best airlines flying from Saint John to London

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

Travelling to a place near London?

Why use momondo?

An easier way to manage your London trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United Kingdom

Fly into one of these airports located in London

Airports listed have a maximum distance of 57.3 km from London

Fly your favourite airline to London

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to London

List of cabin classes available on flights landing in London. Availability may vary depending on flight origin and airline.

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