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$ 747 Cheap Flights from Saint John to London in 2026/27

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. - 8:40 p.m.YSJ Saint John-LHR London Heathrow

48h 00m2 stops Montreal Pierre Elliott Trudeau Intl Newark

12:05 p.m. - 10:19 a.m.LHR London Heathrow-YSJ Saint John

49h 14m2 stops Washington, D.C. Dulles Intl Montreal Pierre Elliott Trudeau Intl

C$ 1,153United Airlines

Mon, 19 Oct - Mon, 26 Oct

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

39h 15m2 stops Montreal Pierre Elliott Trudeau Intl Newark

6:00 p.m. - 10:19 a.m.LHR London Heathrow-YSJ Saint John

44h 19m2 stops Newark Montreal Pierre Elliott Trudeau Intl

C$ 1,153United Airlines

Thu, 5 Nov - Thu, 12 Nov

5:00 a.m. - 6:45 a.m.YSJ Saint John-LHR London Heathrow

21h 45m2 stops Toronto Pearson Intl Chicago O'Hare Intl

7:45 a.m. - 3:59 p.m.LHR London Heathrow-YSJ Saint John

36h 14m2 stops Newark Montreal Pierre Elliott Trudeau Intl

C$ 1,158United Airlines

Fri, 2 Oct - Sat, 10 Oct

5:00 a.m. - 6:45 a.m.YSJ Saint John-LHR London Heathrow

21h 45m2 stops Toronto Pearson Intl Chicago O'Hare Intl

7:45 a.m. - 3:59 p.m.LHR London Heathrow-YSJ Saint John

36h 14m2 stops Newark Montreal Pierre Elliott Trudeau Intl

C$ 1,159United Airlines

Fri, 2 Oct - Sat, 10 Oct

5:00 a.m. - 6:45 a.m.YSJ Saint John-LHR London Heathrow

21h 45m2 stops Toronto Pearson Intl Chicago O'Hare Intl

7:45 a.m. - 3:59 p.m.LHR London Heathrow-YSJ Saint John

36h 14m2 stops Newark Montreal Pierre Elliott Trudeau Intl

C$ 1,160United Airlines

Fri, 2 Oct - Sat, 10 Oct

11:05 a.m. - 12:00 p.m.YSJ Saint John-LHR London Heathrow

20h 55m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl

8:00 a.m. - 10:25 a.m.LHR London Heathrow-YSJ Saint John

30h 25m2 stops Newark Montreal Pierre Elliott Trudeau Intl

C$ 1,162United Airlines

Mon, 18 Jan - Fri, 22 Jan

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$ 1,173United Airlines

Mon, 18 Jan - Fri, 22 Jan

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$ 1,176United Airlines

Mon, 18 Jan - Fri, 22 Jan

5:20 a.m. - 6:30 a.m.YSJ Saint John-LHR London Heathrow

21h 10m1 stop Toronto Pearson Intl

9:00 a.m. - 11:24 p.m.LHR London Heathrow-YSJ Saint John

18h 24m2 stops Zurich Toronto Pearson Intl

C$ 1,306Air Canada

Thu, 5 Nov - Thu, 12 Nov

12:50 p.m. - 8:35 a.m.YSJ Saint John-LHR London Heathrow

15h 45m1 stop Toronto Pearson Intl

9:30 a.m. - 3:59 p.m.LHR London Heathrow-YSJ Saint John

10h 29m1 stop Montreal Pierre Elliott Trudeau Intl

C$ 1,323Air Canada

Fri, 2 Oct - Sat, 10 Oct

Cheap last-minute flights

Enter your travel dates to find the best prices.

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

20h 55m2 stops Toronto Pearson Intl Newark

4:00 p.m. - 3:59 p.m.LHR London Heathrow-YSJ Saint John

27h 59m2 stops Newark Montreal Pierre Elliott Trudeau Intl

C$ 1,159United Airlines

Sat, 26 Sep - Thu, 1 Oct

5:00 a.m. - 6:45 a.m.YSJ Saint John-LHR London Heathrow

21h 45m2 stops Toronto Pearson Intl Chicago O'Hare Intl

3:20 p.m. - 3:59 p.m.LHR London Heathrow-YSJ Saint John

28h 39m2 stops Newark Montreal Pierre Elliott Trudeau Intl

C$ 1,159United Airlines

Sat, 26 Sep - Tue, 29 Sep

5:00 a.m. - 6:45 a.m.YSJ Saint John-LHR London Heathrow

21h 45m2 stops Toronto Pearson Intl Chicago O'Hare Intl

3:20 p.m. - 3:59 p.m.LHR London Heathrow-YSJ Saint John

28h 39m2 stops Newark Montreal Pierre Elliott Trudeau Intl

C$ 1,159United Airlines

Thu, 24 Sep - Mon, 28 Sep

5:00 a.m. - 8:30 a.m.YSJ Saint John-LHR London Heathrow

23h 30m2 stops Toronto Pearson Intl Chicago O'Hare Intl

4:40 p.m. - 3:59 p.m.LHR London Heathrow-YSJ Saint John

27h 19m2 stops Washington, D.C. Dulles Intl Montreal Pierre Elliott Trudeau Intl

C$ 1,159United Airlines

Sat, 26 Sep - Wed, 30 Sep

5:00 a.m. - 9:20 a.m.YSJ Saint John-LHR London Heathrow

24h 20m2 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$ 1,159United Airlines

Mon, 28 Sep - Thu, 1 Oct

5:00 a.m. - 7:15 a.m.YSJ Saint John-LHR London Heathrow

22h 15m2 stops Toronto Pearson Intl Newark

4:00 p.m. - 3:59 p.m.LHR London Heathrow-YSJ Saint John

27h 59m2 stops Newark Montreal Pierre Elliott Trudeau Intl

C$ 1,159United Airlines

Sun, 27 Sep - Wed, 30 Sep

5:00 a.m. - 6:45 a.m.YSJ Saint John-LHR London Heathrow

21h 45m2 stops Toronto Pearson Intl Chicago O'Hare Intl

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

25h 59m2 stops Newark Montreal Pierre Elliott Trudeau Intl

C$ 1,159United Airlines

Thu, 24 Sep - Thu, 1 Oct

5:00 a.m. - 6:45 a.m.YSJ Saint John-LHR London Heathrow

21h 45m2 stops Toronto Pearson Intl Chicago O'Hare Intl

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

25h 59m2 stops Newark Montreal Pierre Elliott Trudeau Intl

C$ 1,159United Airlines

Thu, 24 Sep - Wed, 30 Sep

4:40 p.m. - 6:30 a.m.YSJ Saint John-LHR London Heathrow

9h 50m1 stop Montreal Pierre Elliott Trudeau Intl

9:30 a.m. - 3:59 p.m.LHR London Heathrow-YSJ Saint John

10h 29m1 stop Montreal Pierre Elliott Trudeau Intl

C$ 1,337Air Canada

Sat, 26 Sep - Tue, 29 Sep

4:40 p.m. - 6:30 a.m.YSJ Saint John-LHR London Heathrow

9h 50m1 stop Montreal Pierre Elliott Trudeau Intl

12:40 p.m. - 3:59 p.m.LHR London Heathrow-YSJ Saint John

31h 19m2 stops Halifax Intl Montreal Pierre Elliott Trudeau Intl

C$ 1,337Air Canada

Sat, 26 Sep - Tue, 29 Sep

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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

19 Oct

YSJ4:40 p.m.Saint John

48h 00m

2 stops

LHR8:40 p.m.London Heathrow

26 Oct

LHR12:05 p.m.London Heathrow

49h 14m

2 stops

YSJ10:19 a.m.Saint John

C$ 1,153

United Airlines

2 Oct

YSJ5:00 a.m.Saint John

21h 45m

2 stops

LHR6:45 a.m.London Heathrow

10 Oct

LHR7:45 a.m.London Heathrow

36h 14m

2 stops

YSJ3:59 p.m.Saint John

C$ 1,158

United Airlines

2 Oct

YSJ5:00 a.m.Saint John

21h 45m

2 stops

LHR6:45 a.m.London Heathrow

10 Oct

LHR7:45 a.m.London Heathrow

36h 14m

2 stops

YSJ3:59 p.m.Saint John

C$ 1,159

Lufthansa flights from Saint John to London

Our best Lufthansa deals on Saint John to London flight tickets

Lufthansa

15 Dec

YSJ11:05 a.m.Saint John

16h 05m

1 stop

LHR7:10 a.m.London Heathrow

31 Dec

LHR9:00 a.m.London Heathrow

18h 24m

2 stops

YSJ11:24 p.m.Saint John

C$ 1,795

Lufthansa

27 Sep

YSJ4:40 p.m.Saint John

9h 50m

1 stop

LHR6:30 a.m.London Heathrow

28 Sep

LHR8:40 a.m.London Heathrow

19h 11m

2 stops

YSJ11:51 p.m.Saint John

C$ 2,345

Lufthansa

27 Sep

YSJ4:40 p.m.Saint John

9h 50m

1 stop

LHR6:30 a.m.London Heathrow

28 Sep

LHR8:30 a.m.London Heathrow

19h 21m

1 stop

YSJ11:51 p.m.Saint John

C$ 2,545

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Mon 19/10

4:40 p.m.-8:40 p.m.

2 stops48h 00m

London Heathrow

Mon 26/10

12:05 p.m.-10:19 a.m.

2 stops49h 14m

C$ 1,153

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Thu 5/11

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

2 stops39h 15m

London Heathrow

Thu 12/11

6:00 p.m.-10:19 a.m.

2 stops44h 19m

C$ 1,153

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Fri 2/10

5:00 a.m.-6:45 a.m.

2 stops21h 45m

London Heathrow

Sat 10/10

7:45 a.m.-3:59 p.m.

2 stops36h 14m

C$ 1,158

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Fri 2/10

5:00 a.m.-6:45 a.m.

2 stops21h 45m

London Heathrow

Sat 10/10

7:45 a.m.-3:59 p.m.

2 stops36h 14m

C$ 1,159

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Fri 2/10

5:00 a.m.-6:45 a.m.

2 stops21h 45m

London Heathrow

Sat 10/10

7:45 a.m.-3:59 p.m.

2 stops36h 14m

C$ 1,160

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Mon 18/1

11:05 a.m.-12:00 p.m.

2 stops20h 55m

London Heathrow

Fri 22/1

8:00 a.m.-10:25 a.m.

2 stops30h 25m

C$ 1,162

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$ 1,173

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$ 1,176

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Thu 5/11

5:20 a.m.-6:30 a.m.

1 stop21h 10m

London Heathrow

Thu 12/11

9:00 a.m.-11:24 p.m.

2 stops18h 24m

C$ 1,306

Quickest round-trip

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Fri 2/10

12:50 p.m.-8:35 a.m.

1 stop15h 45m

London Heathrow

Sat 10/10

9:30 a.m.-3:59 p.m.

1 stop10h 29m

C$ 1,323

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$ 747
Fastest flight time	20h 00m
Direct flights	None

The best one-way flight to London from Saint John in the past 72 hours is C$ 747. The best round-trip flight deal from Saint John to London found on momondo in the last 72 hours is C$ 1,153.

The fastest flight from Saint John to London takes 20h 00m

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 20h 00m.
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$ 1,298	Free Cancellation	Rating 7.1 11,661 reviews		Search Air Canada flights

Hounslow

Milton Keynes

Gatwick

Wembley

Crawley

Staines-upon-Thames

Slough

Banbury

Ramsgate

Cobham

Wokingham

Watford

Feltham

Dartford

Eastbourne

Ipswich

Ilford

Waterlooville

Croydon

Hayes

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$ 747

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 4/11. 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

Lufthansa flights from Saint John to London

Our best Lufthansa 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.

Popular Cities in the United Kingdom

Popular flights according to clicks in the last 7 days on momondo

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According to popular flight searches on momondo this year

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