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Cheap flights from Saint John to London from C$ 449

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 6/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Saint John to London

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
5:40 a.m. - 11:50 a.m.
YSJ
-
LHR
26h 10m
1 stop
Air Canada Logo
11:05 a.m. - 3:59 p.m.
LHR
-
YSJ
32h 54m
2 stops
C$ 1,149Air Canada
Fri, 9 Oct - Sun, 11 Oct
Air Canada Logo
5:40 a.m. - 11:50 a.m.
YSJ
-
LHR
26h 10m
1 stop
Air Canada Logo
11:05 a.m. - 3:59 p.m.
LHR
-
YSJ
32h 54m
2 stops
C$ 1,150Air Canada
Fri, 9 Oct - Sun, 11 Oct
Air Canada Logo
4:40 p.m. - 11:50 a.m.
YSJ
-
LHR
15h 10m
2 stops
Air Canada Logo
11:05 a.m. - 3:59 p.m.
LHR
-
YSJ
32h 54m
2 stops
C$ 1,153Air Canada
Fri, 9 Oct - Sun, 11 Oct
Air Canada Logo
4:40 p.m. - 11:50 a.m.
YSJ
-
LHR
15h 10m
2 stops
Air Canada Logo
11:05 a.m. - 3:59 p.m.
LHR
-
YSJ
32h 54m
2 stops
C$ 1,155Air Canada
Fri, 9 Oct - Sun, 11 Oct
United Airlines Logo
5:40 a.m. - 5:55 a.m.
YSJ
-
LHR
20h 15m
2 stops
United Airlines Logo
9:30 a.m. - 3:59 p.m.
LHR
-
YSJ
34h 29m
2 stops
C$ 1,160United Airlines
Wed, 16 Sep - Sun, 20 Sep
Multiple Airlines Logo
10:45 a.m. - 10:45 a.m.
YSJ
-
LGW
20h 00m
1 stop
Multiple Airlines Logo
11:35 a.m. - 10:00 a.m.
LGW
-
YSJ
26h 25m
2 stops
C$ 1,234Multiple Airlines
Fri, 3 Jul - Tue, 7 Jul
Multiple Airlines Logo
10:45 a.m. - 9:50 a.m.
YSJ
-
LGW
19h 05m
2 stops
Multiple Airlines Logo
11:35 a.m. - 10:00 a.m.
LGW
-
YSJ
26h 25m
2 stops
C$ 1,263Multiple Airlines
Fri, 3 Jul - Tue, 7 Jul
Air Canada Logo
4:40 p.m. - 10:00 a.m.
YSJ
-
LHR
13h 20m
1 stop
Air Canada Logo
6:00 a.m. - 11:51 p.m.
LHR
-
YSJ
21h 51m
2 stops
C$ 1,320Air Canada
Wed, 16 Sep - Sun, 20 Sep
Air Canada Logo
4:40 p.m. - 6:30 a.m.
YSJ
-
LHR
9h 50m
1 stop
Air Canada Logo
9:30 a.m. - 3:59 p.m.
LHR
-
YSJ
10h 29m
1 stop
C$ 1,337Air Canada
Wed, 16 Sep - Sun, 20 Sep
Air Canada Logo
4:40 p.m. - 10:00 a.m.
YSJ
-
LHR
13h 20m
1 stop
Air Canada Logo
9:30 a.m. - 3:45 p.m.
LHR
-
YSJ
10h 15m
1 stop
C$ 1,431Air Canada
Wed, 15 Jul - Wed, 22 Jul

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Air Canada flights from Saint John to London

Our best Air Canada deals on Saint John to London flight tickets
Air Canada
9 Oct
YSJ5:40 a.m.Saint John
26h 10m
1 stop
LHR11:50 a.m.London Heathrow
11 Oct
LHR11:05 a.m.London Heathrow
32h 54m
2 stops
YSJ3:59 p.m.Saint John
C$ 1,146
Air Canada
9 Oct
YSJ5:40 a.m.Saint John
26h 10m
1 stop
LHR11:50 a.m.London Heathrow
11 Oct
LHR11:05 a.m.London Heathrow
32h 54m
2 stops
YSJ3:59 p.m.Saint John
C$ 1,149
Air Canada
9 Oct
YSJ4:40 p.m.Saint John
15h 10m
2 stops
LHR11:50 a.m.London Heathrow
11 Oct
LHR11:05 a.m.London Heathrow
32h 54m
2 stops
YSJ3:59 p.m.Saint John
C$ 1,150

momondo Fare Finder

 
Customize your flight search to find flights from Saint John to London that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 96,600 searches. Data last updated 18 June 2026.
Use the filters below to find and compare flights from Saint John to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Saint JohnLondon

YSJ - LHR

YSJLHR

Saint John

Fri 9/10

5:40 a.m.-11:50 a.m.

1 stop26h 10m

London Heathrow

Sun 11/10

11:05 a.m.-3:59 p.m.

2 stops32h 54m

C$ 1,149

Saint JohnLondon

YSJ - LHR

YSJLHR

Saint John

Fri 9/10

5:40 a.m.-11:50 a.m.

1 stop26h 10m

London Heathrow

Sun 11/10

11:05 a.m.-3:59 p.m.

2 stops32h 54m

C$ 1,150

Saint JohnLondon

YSJ - LHR

YSJLHR

Saint John

Fri 9/10

4:40 p.m.-11:50 a.m.

2 stops15h 10m

London Heathrow

Sun 11/10

11:05 a.m.-3:59 p.m.

2 stops32h 54m

C$ 1,153

Saint JohnLondon

YSJ - LHR

YSJLHR

Saint John

Fri 9/10

4:40 p.m.-11:50 a.m.

2 stops15h 10m

London Heathrow

Sun 11/10

11:05 a.m.-3:59 p.m.

2 stops32h 54m

C$ 1,155

Saint JohnLondon

YSJ - LHR

YSJLHR

Saint John

Wed 16/9

5:40 a.m.-5:55 a.m.

2 stops20h 15m

London Heathrow

Sun 20/9

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

2 stops34h 29m

C$ 1,160

Saint JohnLondon

YSJ - LGW

YSJLGW

Saint John

Fri 3/7

10:45 a.m.-10:45 a.m.

1 stop20h 00m

London Gatwick

Tue 7/7

11:35 a.m.-10:00 a.m.

2 stops26h 25m

C$ 1,234

Saint JohnLondon

YSJ - LGW

YSJLGW

Saint John

Fri 3/7

10:45 a.m.-9:50 a.m.

2 stops19h 05m

London Gatwick

Tue 7/7

11:35 a.m.-10:00 a.m.

2 stops26h 25m

C$ 1,263

Saint JohnLondon

YSJ - LHR

YSJLHR

Saint John

Wed 16/9

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

1 stop13h 20m

London Heathrow

Sun 20/9

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

2 stops21h 51m

C$ 1,320
Quickest round-trip

Saint JohnLondon

YSJ - LHR

YSJLHR

Saint John

Wed 16/9

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

1 stop9h 50m

London Heathrow

Sun 20/9

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

1 stop10h 29m

C$ 1,337

Saint JohnLondon

YSJ - LHR

YSJLHR

Saint John

Wed 15/7

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

1 stop13h 20m

London Heathrow

Wed 22/7

9:30 a.m.-3:45 p.m.

1 stop10h 15m

C$ 1,431

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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

9h 50m

Direct flights

None
The fastest flight from Saint John to London takes 9h 50m
There are no direct flights from Saint John to London. There are no popular flight routes from Saint John to London.
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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 9h 50m.

  • 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?

  • 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?

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 CanadaPriceFrom C$ 1,201Free CancellationRating
7.1
11,210 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.

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Hounslow
Milton Keynes
Wembley
Slough
Gatwick
Ramsgate
Wokingham
Crawley
Feltham
Hayes
Richmond
Chelmsford
Waterlooville
Basingstoke
Woking
Enfield
Dover
Worthing
Luton
Ipswich

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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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
London City Airport
London Gatwick Airport
London Heathrow Airport
London Luton Airport
London Southend Airport
London Stansted Airport