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Cheap flights from Saint John to London from £513

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 11/4. 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
0 bags
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Find the cheapest flights from Saint John to London

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
10:45 - 14:10
YSJ
-
LGW
23h 25m
2 stops
Multiple Airlines Logo
08:00 - 23:52
LGW
-
YSJ
19h 52m
2 stops
£787Multiple Airlines
Fri, 1 May - Sat, 30 May
Multiple Airlines Logo
12:00 - 12:35
YSJ
-
LGW
20h 35m
3 stops
Multiple Airlines Logo
10:45 - 23:52
LGW
-
YSJ
17h 07m
2 stops
£886Multiple Airlines
Fri, 1 May - Sat, 30 May
Multiple Airlines Logo
05:35 - 06:20
YSJ
-
LGW
20h 45m
2 stops
Multiple Airlines Logo
12:40 - 11:10
LGW
-
YSJ
26h 30m
2 stops
£910Multiple Airlines
Sun, 5 Apr - Fri, 17 Apr
Multiple Airlines Logo
05:35 - 06:20
YSJ
-
LGW
20h 45m
2 stops
Multiple Airlines Logo
15:40 - 11:10
LGW
-
YSJ
23h 30m
3 stops
£913Multiple Airlines
Sun, 5 Apr - Fri, 17 Apr
Multiple Airlines Logo
11:55 - 09:45
YSJ
-
LGW
41h 50m
2 stops
Multiple Airlines Logo
14:50 - 11:10
LGW
-
YSJ
48h 20m
2 stops
£3,980Multiple Airlines
Thu, 2 Apr - Thu, 9 Apr

momondo Fare Finder

 
Customise 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 279,928 searches. Data last updated 26 February 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

Saint JohnLondon

YSJ - LGW

YSJLGW

Saint John

Fri 1/5

10:45-14:10

2 stops23h 25m

London Gatwick

Sat 30/5

08:00-23:52

2 stops19h 52m

£787

Saint JohnLondon

YSJ - LGW

YSJLGW

Saint John

Fri 1/5

12:00-12:35

3 stops20h 35m

London Gatwick

Sat 30/5

10:45-23:52

2 stops17h 07m

£886

Saint JohnLondon

YSJ - LGW

YSJLGW

Saint John

Sun 5/4

05:35-06:20

2 stops20h 45m

London Gatwick

Fri 17/4

12:40-11:10

2 stops26h 30m

£910

Saint JohnLondon

YSJ - LGW

YSJLGW

Saint John

Sun 5/4

05:35-06:20

2 stops20h 45m

London Gatwick

Fri 17/4

15:40-11:10

3 stops23h 30m

£913

Saint JohnLondon

YSJ - LGW

YSJLGW

Saint John

Thu 2/4

11:55-09:45

2 stops41h 50m

London Gatwick

Thu 9/4

14:50-11:10

2 stops48h 20m

£3,980

Saint JohnLondon

YSJ - LGW

YSJLGW

Saint John

Sat 11/4

11:55-09:45

3 stops17h 50m

£513

Flights are sorted by cheapest return flights first.

Sorted 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 return 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

20h 45m

Direct flights

None
The fastest flight from Saint John to London takes 20h 45m
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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  • How far is Saint John to London by plane?

    Saint John and London are 2950.1 mi apart from one another. A reasonable flight in good conditions will take 20h 45m.

  • 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 old do you have to be to fly from Saint John Airport to London?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Saint John Airport to London.

  • What documentation or ID do you need to fly to London?

    The travel and health documents you'll need for your trip to London may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at London. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • 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?

    By using tools like our “Price Calendar”, you can see the best days for return flights on your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

  • 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
Eastbourne
Milton Keynes
Luton
Gatwick
Maidstone
Slough
Southend-on-Sea
Ipswich
Canterbury
Ilford
Guildford
Chelmsford
Wembley
Hayes
Dover
Folkestone
Worthing
Colchester
Bedford
Ramsgate

Why use momondo?

Why should I use momondo to find a flight deal from Saint John to London?

Finding the right flight to London from Saint John is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to London quick and easy, saving you time and money.

Can I find flights from Saint John to London with flexible booking policies on momondo?

All flight searches from Saint John to London on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Saint John to London?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Saint John to London.

I’m not ready to book a flight from Saint John to London right now. Can momondo alert me if prices change?

Price alerts on flights to London from Saint John are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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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 35.6 mi from London
London City Airport
London Gatwick Airport
London Heathrow Airport
London Luton Airport
London Southend Airport
London Stansted Airport