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Cheap flights from Saint John to London from C$ 602

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 19/8. 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.
Multiple Airlines Logo
10:45 a.m. - 9:50 a.m.YSJ  Saint John-LGW London Gatwick
19h 05m2 stops Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl
Multiple Airlines Logo
12:40 p.m. - 10:00 a.m.LGW  London Gatwick-YSJ Saint John
25h 20m1 stop Toronto Pearson Intl
C$ 1,124Multiple Airlines
Fri, 18 Sep - Sun, 20 Sep
Multiple Airlines Logo
10:45 a.m. - 7:55 a.m.YSJ  Saint John-LGW London Gatwick
17h 10m1 stop Toronto Pearson Intl
Multiple Airlines Logo
12:40 p.m. - 10:00 a.m.LGW  London Gatwick-YSJ Saint John
25h 20m1 stop Toronto Pearson Intl
C$ 1,132Multiple Airlines
Mon, 14 Sep - Sun, 20 Sep
Multiple Airlines Logo
10:45 a.m. - 9:25 a.m.YSJ  Saint John-LGW London Gatwick
18h 40m2 stops Toronto Pearson Intl Halifax Intl
Multiple Airlines Logo
12:40 p.m. - 10:00 a.m.LGW  London Gatwick-YSJ Saint John
25h 20m1 stop Toronto Pearson Intl
C$ 1,139Multiple Airlines
Mon, 14 Sep - Sun, 20 Sep
United Airlines Logo
4:40 p.m. - 8:40 p.m.YSJ  Saint John-LHR London Heathrow
24h 00m2 stops Montreal Pierre Elliott Trudeau Intl Newark
United Airlines Logo
6:00 p.m. - 3:59 p.m.LHR  London Heathrow-YSJ Saint John
25h 59m2 stops Newark Montreal Pierre Elliott Trudeau Intl
C$ 1,148United Airlines
Fri, 4 Sep - Fri, 11 Sep
Multiple Airlines Logo
10:45 a.m. - 9:50 a.m.YSJ  Saint John-LGW London Gatwick
19h 05m2 stops Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl
Multiple Airlines Logo
12:40 p.m. - 10:00 a.m.LGW  London Gatwick-YSJ Saint John
25h 20m1 stop Toronto Pearson Intl
C$ 1,148Multiple Airlines
Fri, 18 Sep - Thu, 24 Sep
United Airlines Logo
11:05 a.m. - 7:55 a.m.YSJ  Saint John-LHR London Heathrow
16h 50m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl
United Airlines Logo
12:00 p.m. - 10:25 a.m.LHR  London Heathrow-YSJ Saint John
26h 25m2 stops Newark Montreal Pierre Elliott Trudeau Intl
C$ 1,149United Airlines
Sun, 22 Nov - Fri, 27 Nov
United Airlines Logo
4:40 p.m. - 11:55 a.m.YSJ  Saint John-LHR London Heathrow
15h 15m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl
United Airlines Logo
6:00 p.m. - 3:59 p.m.LHR  London Heathrow-YSJ Saint John
25h 59m2 stops Newark Montreal Pierre Elliott Trudeau Intl
C$ 1,151United Airlines
Fri, 25 Sep - Fri, 2 Oct
Multiple Airlines Logo
10:45 a.m. - 9:25 a.m.YSJ  Saint John-LGW London Gatwick
18h 40m2 stops Toronto Pearson Intl Halifax Intl
Multiple Airlines Logo
12:40 p.m. - 10:00 a.m.LGW  London Gatwick-YSJ Saint John
25h 20m1 stop Toronto Pearson Intl
C$ 1,151Multiple Airlines
Wed, 9 Sep - Thu, 17 Sep
Air Canada Logo
4:40 p.m. - 10:00 a.m.YSJ  Saint John-LHR London Heathrow
13h 20m1 stop Montreal Pierre Elliott Trudeau Intl
Air Canada Logo
8:45 a.m. - 3:59 p.m.LHR  London Heathrow-YSJ Saint John
35h 14m2 stops Zurich Montreal Pierre Elliott Trudeau Intl
C$ 1,305Air Canada
Mon, 14 Sep - Thu, 24 Sep
Air Canada Logo
4:40 p.m. - 10:00 a.m.YSJ  Saint John-LHR London Heathrow
13h 20m1 stop Montreal Pierre Elliott Trudeau Intl
Air Canada Logo
8:40 a.m. - 3:59 p.m.LHR  London Heathrow-YSJ Saint John
35h 19m2 stops Zurich Montreal Pierre Elliott Trudeau Intl
C$ 1,305Air Canada
Mon, 7 Sep - Mon, 14 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
4 Sep
YSJ4:40 p.m.Saint John
24h 00m
2 stops
LHR8:40 p.m.London Heathrow
11 Sep
LHR6:00 p.m.London Heathrow
25h 59m
2 stops
YSJ3:59 p.m.Saint John
C$ 1,148
United Airlines
22 Nov
YSJ11:05 a.m.Saint John
16h 50m
2 stops
LHR7:55 a.m.London Heathrow
27 Nov
LHR12:00 p.m.London Heathrow
26h 25m
2 stops
YSJ10:25 a.m.Saint John
C$ 1,149
United Airlines
25 Sep
YSJ4:40 p.m.Saint John
15h 15m
2 stops
LHR11:55 a.m.London Heathrow
2 Oct
LHR6:00 p.m.London Heathrow
25h 59m
2 stops
YSJ3:59 p.m.Saint John
C$ 1,151

Lufthansa flights from Saint John to London

Our best Lufthansa deals on Saint John to London flight tickets
Lufthansa
15 Sep
YSJ4:40 p.m.Saint John
13h 45m
2 stops
LHR10:25 a.m.London Heathrow
23 Sep
LHR9:30 a.m.London Heathrow
10h 29m
1 stop
YSJ3:59 p.m.Saint John
C$ 1,301
Lufthansa
17 Aug
YSJ4:40 p.m.Saint John
13h 20m
1 stop
LHR10:00 a.m.London Heathrow
31 Aug
LHR2:05 p.m.London Heathrow
29h 55m
1 stop
YSJ4:00 p.m.Saint John
C$ 1,825
Lufthansa
16 Aug
YSJ4:40 p.m.Saint John
9h 50m
1 stop
LHR6:30 a.m.London Heathrow
31 Aug
LHR5:40 p.m.London Heathrow
11h 45m
1 stop
YSJ1:25 a.m.Saint John
C$ 1,915

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 11 August 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 Saint John - LGW London Gatwick

YSJLGW

Saint John

Fri 18/9

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

2 stops19h 05m

London Gatwick

Sun 20/9

12:40 p.m.-10:00 a.m.

1 stop25h 20m

C$ 1,124

Saint JohnLondon

YSJ Saint John - LGW London Gatwick

YSJLGW

Saint John

Mon 14/9

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

1 stop17h 10m

London Gatwick

Sun 20/9

12:40 p.m.-10:00 a.m.

1 stop25h 20m

C$ 1,132

Saint JohnLondon

YSJ Saint John - LGW London Gatwick

YSJLGW

Saint John

Mon 14/9

10:45 a.m.-9:25 a.m.

2 stops18h 40m

London Gatwick

Sun 20/9

12:40 p.m.-10:00 a.m.

1 stop25h 20m

C$ 1,139

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Fri 4/9

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

2 stops24h 00m

London Heathrow

Fri 11/9

6:00 p.m.-3:59 p.m.

2 stops25h 59m

C$ 1,148

Saint JohnLondon

YSJ Saint John - LGW London Gatwick

YSJLGW

Saint John

Fri 18/9

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

2 stops19h 05m

London Gatwick

Thu 24/9

12:40 p.m.-10:00 a.m.

1 stop25h 20m

C$ 1,148

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Sun 22/11

11:05 a.m.-7:55 a.m.

2 stops16h 50m

London Heathrow

Fri 27/11

12:00 p.m.-10:25 a.m.

2 stops26h 25m

C$ 1,149
Quickest round-trip

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Fri 25/9

4:40 p.m.-11:55 a.m.

2 stops15h 15m

London Heathrow

Fri 2/10

6:00 p.m.-3:59 p.m.

2 stops25h 59m

C$ 1,151

Saint JohnLondon

YSJ Saint John - LGW London Gatwick

YSJLGW

Saint John

Wed 9/9

10:45 a.m.-9:25 a.m.

2 stops18h 40m

London Gatwick

Thu 17/9

12:40 p.m.-10:00 a.m.

1 stop25h 20m

C$ 1,151

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Mon 14/9

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

1 stop13h 20m

London Heathrow

Thu 24/9

8:45 a.m.-3:59 p.m.

2 stops35h 14m

C$ 1,305

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Mon 7/9

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

1 stop13h 20m

London Heathrow

Mon 14/9

8:40 a.m.-3:59 p.m.

2 stops35h 19m

C$ 1,305

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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

Fastest flight time

16h 10m

Direct flights

None
The fastest flight from Saint John to London takes 16h 10m
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 16h 10m.

  • 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$ 1,279Free CancellationRating
7.1
11,462 reviews
Search Air Canada flights

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Hounslow
Milton Keynes
Gatwick
Wembley
Staines-upon-Thames
Slough
Banbury
Ramsgate
Watford
Wokingham
Dartford
Feltham
Hayes
Crawley
Croydon
Chelmsford
Waterlooville
Richmond
Basingstoke
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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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