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 August 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$ 627 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. - 10:25 a.m.YSJ Saint John-LHR London Heathrow

13h 45m2 stops Montreal Pierre Elliott Trudeau Intl Newark

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

36h 14m2 stops Newark Montreal Pierre Elliott Trudeau Intl

C$ 1,145United Airlines

Mon, 28 Sep - Mon, 5 Oct

11:05 a.m. - 6:40 a.m.YSJ Saint John-LHR London Heathrow

15h 35m2 stops Montreal Pierre Elliott Trudeau Intl Washington, D.C. Dulles Intl

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

44h 25m2 stops Newark Montreal Pierre Elliott Trudeau Intl

C$ 1,151United Airlines

Sun, 29 Nov - Thu, 3 Dec

4:40 p.m. - 8:40 p.m.YSJ Saint John-LHR London Heathrow

24h 00m2 stops Montreal Pierre Elliott Trudeau Intl Newark

2:10 p.m. - 3:59 p.m.LHR London Heathrow-YSJ Saint John

29h 49m2 stops Chicago O'Hare Intl Montreal Pierre Elliott Trudeau Intl

C$ 1,151United Airlines

Sat, 10 Oct - Sat, 17 Oct

5:40 a.m. - 10:25 a.m.YSJ Saint John-LHR London Heathrow

24h 45m2 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$ 1,152United Airlines

Fri, 2 Oct - Sat, 10 Oct

12:50 p.m. - 11:55 a.m.YSJ Saint John-LHR London Heathrow

19h 05m2 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$ 1,152United Airlines

Thu, 24 Sep - Mon, 28 Sep

12:50 p.m. - 11:55 a.m.YSJ Saint John-LHR London Heathrow

19h 05m2 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$ 1,154United Airlines

Thu, 24 Sep - Mon, 28 Sep

5:40 a.m. - 10:25 a.m.YSJ Saint John-LHR London Heathrow

24h 45m2 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$ 1,154United Airlines

Fri, 2 Oct - Sat, 10 Oct

5:40 a.m. - 10:25 a.m.YSJ Saint John-LHR London Heathrow

24h 45m2 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$ 1,156United Airlines

Fri, 2 Oct - Sat, 10 Oct

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

9h 50m1 stop Montreal Pierre Elliott Trudeau Intl

6:00 a.m. - 11:51 p.m.LHR London Heathrow-YSJ Saint John

21h 51m2 stops Zurich Toronto Pearson Intl

C$ 1,310Air Canada

Fri, 2 Oct - Sat, 10 Oct

4:40 p.m. - 10:00 a.m.YSJ Saint John-LHR London Heathrow

13h 20m1 stop Montreal Pierre Elliott Trudeau Intl

5:15 p.m. - 3:59 p.m.LHR London Heathrow-YSJ Saint John

50h 44m2 stops Zurich Montreal Pierre Elliott Trudeau Intl

C$ 1,310Air Canada

Sat, 10 Oct - Sat, 17 Oct

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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

28 Sep

YSJ4:40 p.m.Saint John

13h 45m

2 stops

LHR10:25 a.m.London Heathrow

5 Oct

LHR7:45 a.m.London Heathrow

36h 14m

2 stops

YSJ3:59 p.m.Saint John

C$ 1,145

United Airlines

29 Nov

YSJ11:05 a.m.Saint John

15h 35m

2 stops

LHR6:40 a.m.London Heathrow

3 Dec

LHR6:00 p.m.London Heathrow

44h 25m

2 stops

YSJ10:25 a.m.Saint John

C$ 1,151

United Airlines

24 Sep

YSJ12:50 p.m.Saint John

19h 05m

2 stops

LHR11:55 a.m.London Heathrow

28 Sep

LHR4:40 p.m.London Heathrow

27h 19m

2 stops

YSJ3:59 p.m.Saint John

C$ 1,152

Air Canada flights from Saint John to London

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

Air Canada

2 Oct

YSJ4:40 p.m.Saint John

9h 50m

1 stop

LHR6:30 a.m.London Heathrow

10 Oct

LHR6:00 a.m.London Heathrow

21h 51m

2 stops

YSJ11:51 p.m.Saint John

C$ 1,310

Air Canada

27 Sep

YSJ4:40 p.m.Saint John

13h 20m

1 stop

LHR10:00 a.m.London Heathrow

4 Oct

LHR9:30 a.m.London Heathrow

10h 29m

1 stop

YSJ3:59 p.m.Saint John

C$ 1,312

Air Canada

29 Nov

YSJ11:05 a.m.Saint John

16h 05m

1 stop

LHR7:10 a.m.London Heathrow

3 Dec

LHR6:00 a.m.London Heathrow

32h 25m

2 stops

YSJ10:25 a.m.Saint John

C$ 1,313

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Mon 28/9

4:40 p.m.-10:25 a.m.

2 stops13h 45m

London Heathrow

Mon 5/10

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

2 stops36h 14m

C$ 1,145

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Sun 29/11

11:05 a.m.-6:40 a.m.

2 stops15h 35m

London Heathrow

Thu 3/12

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

2 stops44h 25m

C$ 1,151

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Sat 10/10

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

2 stops24h 00m

London Heathrow

Sat 17/10

2:10 p.m.-3:59 p.m.

2 stops29h 49m

C$ 1,151

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Fri 2/10

5:40 a.m.-10:25 a.m.

2 stops24h 45m

London Heathrow

Sat 10/10

4:00 p.m.-3:59 p.m.

2 stops27h 59m

C$ 1,152

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Thu 24/9

12:50 p.m.-11:55 a.m.

2 stops19h 05m

London Heathrow

Mon 28/9

4:40 p.m.-3:59 p.m.

2 stops27h 19m

C$ 1,152

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Thu 24/9

12:50 p.m.-11:55 a.m.

2 stops19h 05m

London Heathrow

Mon 28/9

4:40 p.m.-3:59 p.m.

2 stops27h 19m

C$ 1,154

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Fri 2/10

5:40 a.m.-10:25 a.m.

2 stops24h 45m

London Heathrow

Sat 10/10

4:00 p.m.-3:59 p.m.

2 stops27h 59m

C$ 1,154

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Fri 2/10

5:40 a.m.-10:25 a.m.

2 stops24h 45m

London Heathrow

Sat 10/10

4:00 p.m.-3:59 p.m.

2 stops27h 59m

C$ 1,156

Quickest round-trip

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Fri 2/10

4:40 p.m.-6:30 a.m.

1 stop9h 50m

London Heathrow

Sat 10/10

6:00 a.m.-11:51 p.m.

2 stops21h 51m

C$ 1,310

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Sat 10/10

4:40 p.m.-10:00 a.m.

1 stop13h 20m

London Heathrow

Sat 17/10

5:15 p.m.-3:59 p.m.

2 stops50h 44m

C$ 1,310

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 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$ 654
Fastest flight time	15h 35m
Direct flights	None

The best one-way flight to London from Saint John in the past 72 hours is C$ 654. The best round-trip flight deal from Saint John to London found on momondo in the last 72 hours is C$ 1,145.

The fastest flight from Saint John to London takes 15h 35m

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 35m.
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 August 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$ 1,273	Free Cancellation	Rating 7.1 11,483 reviews		Search Air Canada flights

Hounslow

Milton Keynes

Gatwick

Wembley

Staines-upon-Thames

Slough

Banbury

Ramsgate

Watford

Wokingham

Dartford

Eastbourne

Feltham

Hayes

Crawley

Croydon

Chelmsford

Waterlooville

Richmond

Basingstoke

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$ 654

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 30/9. 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

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

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