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Cheap flights from Saint John to London from C$ 605

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 24/8. 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.
United Airlines Logo
4:40 p.m. - 10:25 a.m.
YSJ
-
LHR
13h 45m
2 stops
United Airlines Logo
12:00 p.m. - 11:56 a.m.
LHR
-
YSJ
27h 56m
2 stops
C$ 1,158United Airlines
Tue, 29 Sep - Tue, 6 Oct
Lufthansa Logo
12:50 p.m. - 10:40 a.m.
YSJ
-
LHR
17h 50m
2 stops
Lufthansa Logo
11:05 a.m. - 11:51 p.m.
LHR
-
YSJ
16h 46m
2 stops
C$ 1,182Lufthansa
Thu, 10 Sep - Thu, 17 Sep
Multiple Airlines Logo
12:50 p.m. - 11:55 a.m.
YSJ
-
LHR
19h 05m
2 stops
Multiple Airlines Logo
8:30 a.m. - 11:51 p.m.
LHR
-
YSJ
19h 21m
1 stop
C$ 1,280Multiple Airlines
Thu, 10 Sep - Thu, 17 Sep
Multiple Airlines Logo
4:40 p.m. - 11:55 a.m.
YSJ
-
LHR
15h 15m
2 stops
Multiple Airlines Logo
9:30 a.m. - 3:59 p.m.
LHR
-
YSJ
10h 29m
1 stop
C$ 1,297Multiple Airlines
Tue, 29 Sep - Tue, 6 Oct
Multiple Airlines Logo
4:40 p.m. - 6:30 a.m.
YSJ
-
LHR
9h 50m
1 stop
Multiple Airlines Logo
9:30 a.m. - 3:59 p.m.
LHR
-
YSJ
10h 29m
1 stop
C$ 1,325Multiple Airlines
Tue, 29 Sep - Tue, 6 Oct
Multiple Airlines Logo
5:00 a.m. - 9:50 a.m.
YSJ
-
LGW
24h 50m
2 stops
Multiple Airlines Logo
8:40 a.m. - 11:51 p.m.
LGW
-
YSJ
19h 11m
2 stops
C$ 1,328Multiple Airlines
Thu, 10 Sep - Thu, 17 Sep
Air Canada Logo
5:00 a.m. - 6:35 a.m.
YSJ
-
LHR
21h 35m
1 stop
Air Canada Logo
2:10 p.m. - 11:51 p.m.
LHR
-
YSJ
13h 41m
1 stop
C$ 1,349Air Canada
Thu, 10 Sep - Thu, 17 Sep
Multiple Airlines Logo
5:00 a.m. - 9:50 a.m.
YSJ
-
LGW
24h 50m
2 stops
Multiple Airlines Logo
12:40 p.m. - 11:51 p.m.
LGW
-
YSJ
15h 11m
1 stop
C$ 1,407Multiple Airlines
Thu, 10 Sep - Thu, 17 Sep
Multiple Airlines Logo
12:50 p.m. - 9:50 a.m.
YSJ
-
LGW
17h 00m
2 stops
Multiple Airlines Logo
12:40 p.m. - 11:51 p.m.
LGW
-
YSJ
15h 11m
1 stop
C$ 1,553Multiple Airlines
Tue, 29 Sep - Tue, 6 Oct
Air Canada Logo
4:40 p.m. - 6:30 a.m.
YSJ
-
LHR
9h 50m
1 stop
Air Canada Logo
9:30 a.m. - 4:00 p.m.
LHR
-
YSJ
10h 30m
1 stop
C$ 1,560Air Canada
Sun, 23 Aug - Sun, 30 Aug

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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
10 Sep
YSJ5:00 a.m.Saint John
21h 35m
1 stop
LHR6:35 a.m.London Heathrow
17 Sep
LHR2:10 p.m.London Heathrow
13h 41m
1 stop
YSJ11:51 p.m.Saint John
C$ 1,349
Air Canada
23 Aug
YSJ4:40 p.m.Saint John
9h 50m
1 stop
LHR6:30 a.m.London Heathrow
30 Aug
LHR9:30 a.m.London Heathrow
10h 30m
1 stop
YSJ4:00 p.m.Saint John
C$ 1,560
Air Canada
23 Aug
YSJ4:40 p.m.Saint John
9h 50m
1 stop
LHR6:30 a.m.London Heathrow
30 Aug
LHR9:30 a.m.London Heathrow
19h 55m
2 stops
YSJ1:25 a.m.Saint John
C$ 1,572

United Airlines flights from Saint John to London

Our best United Airlines deals on Saint John to London flight tickets
United Airlines
29 Sep
YSJ4:40 p.m.Saint John
13h 45m
2 stops
LHR10:25 a.m.London Heathrow
6 Oct
LHR12:00 p.m.London Heathrow
27h 56m
2 stops
YSJ11:56 a.m.Saint John
C$ 1,158
United Airlines
22 Dec
YSJ11:05 a.m.Saint John
15h 15m
2 stops
LHR6:20 a.m.London Heathrow
4 Jan
LHR8:00 a.m.London Heathrow
19h 24m
3 stops
YSJ11:24 p.m.Saint John
C$ 6,078

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 29 July 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

Tue 29/9

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

2 stops13h 45m

London Heathrow

Tue 6/10

12:00 p.m.-11:56 a.m.

2 stops27h 56m

C$ 1,158

Saint JohnLondon

YSJ - LHR

YSJLHR

Saint John

Thu 10/9

12:50 p.m.-10:40 a.m.

2 stops17h 50m

London Heathrow

Thu 17/9

11:05 a.m.-11:51 p.m.

2 stops16h 46m

C$ 1,182

Saint JohnLondon

YSJ - LHR

YSJLHR

Saint John

Thu 10/9

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

2 stops19h 05m

London Heathrow

Thu 17/9

8:30 a.m.-11:51 p.m.

1 stop19h 21m

C$ 1,280

Saint JohnLondon

YSJ - LHR

YSJLHR

Saint John

Tue 29/9

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

2 stops15h 15m

London Heathrow

Tue 6/10

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

1 stop10h 29m

C$ 1,297
Quickest round-trip

Saint JohnLondon

YSJ - LHR

YSJLHR

Saint John

Tue 29/9

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

1 stop9h 50m

London Heathrow

Tue 6/10

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

1 stop10h 29m

C$ 1,325

Saint JohnLondon

YSJ - LGW

YSJLGW

Saint John

Thu 10/9

5:00 a.m.-9:50 a.m.

2 stops24h 50m

London Gatwick

Thu 17/9

8:40 a.m.-11:51 p.m.

2 stops19h 11m

C$ 1,328

Saint JohnLondon

YSJ - LHR

YSJLHR

Saint John

Thu 10/9

5:00 a.m.-6:35 a.m.

1 stop21h 35m

London Heathrow

Thu 17/9

2:10 p.m.-11:51 p.m.

1 stop13h 41m

C$ 1,349

Saint JohnLondon

YSJ - LGW

YSJLGW

Saint John

Thu 10/9

5:00 a.m.-9:50 a.m.

2 stops24h 50m

London Gatwick

Thu 17/9

12:40 p.m.-11:51 p.m.

1 stop15h 11m

C$ 1,407

Saint JohnLondon

YSJ - LGW

YSJLGW

Saint John

Tue 29/9

12:50 p.m.-9:50 a.m.

2 stops17h 00m

London Gatwick

Tue 6/10

12:40 p.m.-11:51 p.m.

1 stop15h 11m

C$ 1,553

Saint JohnLondon

YSJ - LHR

YSJLHR

Saint John

Sun 23/8

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

1 stop9h 50m

London Heathrow

Sun 30/8

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

1 stop10h 30m

C$ 1,560

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to London from

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

17h 50m

Direct flights

None
The fastest flight from Saint John to London takes 17h 50m
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 17h 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$ 1,296Free CancellationRating
7.1
11,404 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
Ramsgate
Watford
Wokingham
Dartford
Crawley
Croydon
Feltham
Hayes
Richmond
Chelmsford
Waterlooville
Basingstoke
Woking
Enfield

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