How do I get Price Alerts for flights from Saint John to London?

Price Alerts will notify you by email when the price for flights to London from Saint John decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.

How can I save money on flights from Saint John to London with momondo?

With “Price Forecast”, learn how soon you should book your flight in advance. Down to the day of week and time of day, our information can inform you on the ideal time to book to save on your travel. Our “Price Calendar” shows you at a quick glance when to book your travel for lower rates. By setting “Price Alerts” you can monitor changes in price and target the ideal time to book. Search for your trip destination by budget amount via our “Explore” feature. Whether you’re looking for ideas for your next travel adventure or cost-cutting tips, our “Discover” content is a great place to start.

How does momondo find its flight prices?

We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

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 April 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$ 478 Cheap Flights from Saint John to London in 2026

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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.

4:30 p.m. - 9:00 p.m.

YSJ

LHR

48h 30m

2 stops

6:50 a.m. - 11:50 p.m.

LHR

YSJ

21h 00m

2 stops

C$ 1,125Air Canada

Sat, 30 May - Thu, 18 Jun

4:30 p.m. - 9:00 p.m.

YSJ

LHR

48h 30m

2 stops

12:40 p.m. - 3:50 p.m.

LHR

YSJ

31h 10m

2 stops

C$ 1,135Air Canada

Sat, 30 May - Thu, 18 Jun

4:30 p.m. - 6:55 a.m.

YSJ

LHR

34h 25m

2 stops

8:00 a.m. - 3:50 p.m.

LHR

YSJ

35h 50m

2 stops

C$ 1,145United Airlines

Sat, 30 May - Fri, 19 Jun

4:30 p.m. - 9:25 p.m.

YSJ

LHR

24h 55m

2 stops

12:15 p.m. - 3:40 p.m.

LHR

YSJ

31h 25m

2 stops

C$ 1,146United Airlines

Mon, 18 May - Wed, 27 May

5:00 a.m. - 7:15 a.m.

YSJ

LHR

22h 15m

2 stops

12:00 p.m. - 3:50 p.m.

LHR

YSJ

31h 50m

2 stops

C$ 1,150United Airlines

Sat, 30 May - Wed, 17 Jun

5:35 a.m. - 6:55 a.m.

YSJ

LHR

21h 20m

2 stops

12:15 p.m. - 11:15 a.m.

LHR

YSJ

27h 00m

2 stops

C$ 1,153United Airlines

Thu, 16 Apr - Tue, 21 Apr

5:35 a.m. - 6:45 a.m.

YSJ

LHR

21h 10m

2 stops

12:00 p.m. - 11:52 p.m.

LHR

YSJ

15h 52m

2 stops

C$ 1,156United Airlines

Wed, 29 Apr - Wed, 6 May

5:00 a.m. - 7:15 a.m.

YSJ

LHR

22h 15m

2 stops

9:30 a.m. - 11:50 p.m.

LHR

YSJ

18h 20m

2 stops

C$ 1,157United Airlines

Sat, 30 May - Sat, 20 Jun

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

YSJ

LHR

10h 00m

1 stop

6:00 a.m. - 11:50 p.m.

LHR

YSJ

21h 50m

2 stops

C$ 1,264Air Canada

Sat, 30 May - Thu, 18 Jun

10:45 a.m. - 7:55 a.m.

YSJ

LGW

17h 10m

1 stop

1:05 p.m. - 10:00 a.m.

LGW

YSJ

24h 55m

2 stops

C$ 1,304Multiple Airlines

Wed, 17 Jun - Sun, 21 Jun

United Airlines flights from Saint John to London

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

United Airlines

30 May

YSJ4:30 p.m.Saint John

34h 25m

2 stops

LHR6:55 a.m.London Heathrow

19 Jun

LHR8:00 a.m.London Heathrow

35h 50m

2 stops

YSJ3:50 p.m.Saint John

C$ 1,145

United Airlines

18 May

YSJ4:30 p.m.Saint John

24h 55m

2 stops

LHR9:25 p.m.London Heathrow

27 May

LHR12:15 p.m.London Heathrow

31h 25m

2 stops

YSJ3:40 p.m.Saint John

C$ 1,146

United Airlines

30 May

YSJ5:00 a.m.Saint John

22h 15m

2 stops

LHR7:15 a.m.London Heathrow

17 Jun

LHR12:00 p.m.London Heathrow

31h 50m

2 stops

YSJ3:50 p.m.Saint John

C$ 1,150

Air Canada flights from Saint John to London

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

Air Canada

30 May

YSJ4:30 p.m.Saint John

48h 30m

2 stops

LHR9:00 p.m.London Heathrow

18 Jun

LHR6:50 a.m.London Heathrow

21h 00m

2 stops

YSJ11:50 p.m.Saint John

C$ 1,125

Air Canada

30 May

YSJ4:30 p.m.Saint John

48h 30m

2 stops

LHR9:00 p.m.London Heathrow

18 Jun

LHR12:40 p.m.London Heathrow

31h 10m

2 stops

YSJ3:50 p.m.Saint John

C$ 1,135

Air Canada

30 May

YSJ4:30 p.m.Saint John

10h 00m

1 stop

LHR6:30 a.m.London Heathrow

18 Jun

LHR6:00 a.m.London Heathrow

21h 50m

2 stops

YSJ11:50 p.m.Saint John

C$ 1,264

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Saint JohnLondon

YSJ - LHR

YSJLHR

Saint John

Sat 30/5

4:30 p.m.-9:00 p.m.

2 stops48h 30m

London Heathrow

Thu 18/6

6:50 a.m.-11:50 p.m.

2 stops21h 00m

C$ 1,125

Saint JohnLondon

YSJ - LHR

YSJLHR

Saint John

Sat 30/5

4:30 p.m.-9:00 p.m.

2 stops48h 30m

London Heathrow

Thu 18/6

12:40 p.m.-3:50 p.m.

2 stops31h 10m

C$ 1,135

Saint JohnLondon

YSJ - LHR

YSJLHR

Saint John

Sat 30/5

4:30 p.m.-6:55 a.m.

2 stops34h 25m

London Heathrow

Fri 19/6

8:00 a.m.-3:50 p.m.

2 stops35h 50m

C$ 1,145

Saint JohnLondon

YSJ - LHR

YSJLHR

Saint John

Mon 18/5

4:30 p.m.-9:25 p.m.

2 stops24h 55m

London Heathrow

Wed 27/5

12:15 p.m.-3:40 p.m.

2 stops31h 25m

C$ 1,146

Saint JohnLondon

YSJ - LHR

YSJLHR

Saint John

Sat 30/5

5:00 a.m.-7:15 a.m.

2 stops22h 15m

London Heathrow

Wed 17/6

12:00 p.m.-3:50 p.m.

2 stops31h 50m

C$ 1,150

Saint JohnLondon

YSJ - LHR

YSJLHR

Saint John

Thu 16/4

5:35 a.m.-6:55 a.m.

2 stops21h 20m

London Heathrow

Tue 21/4

12:15 p.m.-11:15 a.m.

2 stops27h 00m

C$ 1,153

Saint JohnLondon

YSJ - LHR

YSJLHR

Saint John

Wed 29/4

5:35 a.m.-6:45 a.m.

2 stops21h 10m

London Heathrow

Wed 6/5

12:00 p.m.-11:52 p.m.

2 stops15h 52m

C$ 1,156

Saint JohnLondon

YSJ - LHR

YSJLHR

Saint John

Sat 30/5

5:00 a.m.-7:15 a.m.

2 stops22h 15m

London Heathrow

Sat 20/6

9:30 a.m.-11:50 p.m.

2 stops18h 20m

C$ 1,157

Quickest round-trip

Saint JohnLondon

YSJ - LHR

YSJLHR

Saint John

Sat 30/5

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

1 stop10h 00m

London Heathrow

Thu 18/6

6:00 a.m.-11:50 p.m.

2 stops21h 50m

C$ 1,264

Saint JohnLondon

YSJ - LGW

YSJLGW

Saint John

Wed 17/6

10:45 a.m.-7:55 a.m.

1 stop17h 10m

London Gatwick

Sun 21/6

1:05 p.m.-10:00 a.m.

2 stops24h 55m

C$ 1,304

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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	13h 55m
Direct flights	None

The fastest flight from Saint John to London takes 13h 55m

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 13h 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 April 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$ 1,189	Free Cancellation	Rating 7.1 10,880 reviews		Search Air Canada flights

Frequently asked questions about flying from Saint John to London

How do I get Price Alerts for flights from Saint John to London?
Price Alerts will notify you by email when the price for flights to London from Saint John decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.
How can I save money on flights from Saint John to London with momondo?
With “Price Forecast”, learn how soon you should book your flight in advance. Down to the day of week and time of day, our information can inform you on the ideal time to book to save on your travel. Our “Price Calendar” shows you at a quick glance when to book your travel for lower rates. By setting “Price Alerts” you can monitor changes in price and target the ideal time to book. Search for your trip destination by budget amount via our “Explore” feature. Whether you’re looking for ideas for your next travel adventure or cost-cutting tips, our “Discover” content is a great place to start.
How does momondo find its flight prices?
We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

Hounslow

Wembley

Ilford

Slough

Gatwick

Wokingham

Crawley

Feltham

Hayes

Newport

Waterlooville

Chelmsford

Basingstoke

Milton Keynes

Dover

Guildford

Worthing

Ipswich

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.

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Cheap flights from Saint John to London from C$ 478

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 22/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names, great deals

Big names, great deals

Filter for what you want

Filter for what you want

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Find the cheapest flights from Saint John to London

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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

momondo Fare Finder

Use the filters below to find and compare flights from Saint John to London that are best for you.

When to book flights from Saint John to London

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

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

Frequently asked questions about flying from Saint John to London

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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