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Cheap flights from Saint John to London from C$ 728

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

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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
4:30 p.m. - 10:00 a.m.
YSJ
-
LHR
13h 30m
1 stop
Air Canada Logo
8:40 a.m. - 3:40 p.m.
LHR
-
YSJ
35h 00m
2 stops
C$ 1,027Air Canada
Mon, 11 May - Wed, 20 May
United Airlines Logo
4:30 p.m. - 9:35 p.m.
YSJ
-
LHR
25h 05m
2 stops
United Airlines Logo
12:15 p.m. - 3:40 p.m.
LHR
-
YSJ
31h 25m
2 stops
C$ 1,045United Airlines
Mon, 18 May - Wed, 27 May
Air Canada Logo
4:30 p.m. - 6:35 a.m.
YSJ
-
LHR
34h 05m
2 stops
Air Canada Logo
6:50 a.m. - 3:40 p.m.
LHR
-
YSJ
12h 50m
2 stops
C$ 1,048Air Canada
Mon, 11 May - Wed, 20 May
Air Canada Logo
4:30 p.m. - 10:00 a.m.
YSJ
-
LHR
13h 30m
1 stop
Air Canada Logo
9:30 a.m. - 3:40 p.m.
LHR
-
YSJ
10h 10m
1 stop
C$ 1,049Air Canada
Mon, 11 May - Wed, 20 May
United Airlines Logo
4:30 p.m. - 9:35 p.m.
YSJ
-
LHR
25h 05m
2 stops
United Airlines Logo
12:00 p.m. - 11:52 p.m.
LHR
-
YSJ
15h 52m
2 stops
C$ 1,052United Airlines
Mon, 11 May - Wed, 20 May
Air Canada Logo
4:30 p.m. - 10:00 a.m.
YSJ
-
LHR
13h 30m
1 stop
Air Canada Logo
8:40 a.m. - 3:40 p.m.
LHR
-
YSJ
35h 00m
2 stops
C$ 1,071Air Canada
Mon, 11 May - Wed, 20 May
Air Canada Logo
11:55 a.m. - 10:00 a.m.
YSJ
-
LHR
18h 05m
1 stop
Air Canada Logo
8:45 a.m. - 11:52 p.m.
LHR
-
YSJ
19h 07m
2 stops
C$ 1,079Air Canada
Thu, 9 Apr - Thu, 16 Apr
Air Canada Logo
4:30 p.m. - 10:00 a.m.
YSJ
-
LHR
13h 30m
1 stop
Air Canada Logo
6:50 a.m. - 3:40 p.m.
LHR
-
YSJ
12h 50m
2 stops
C$ 1,081Air Canada
Mon, 18 May - Wed, 27 May
Air Canada Logo
4:30 p.m. - 10:00 a.m.
YSJ
-
LHR
13h 30m
1 stop
Air Canada Logo
9:30 a.m. - 3:40 p.m.
LHR
-
YSJ
10h 10m
1 stop
C$ 1,093Air Canada
Mon, 11 May - Wed, 20 May
Multiple Airlines Logo
10:45 a.m. - 2:10 p.m.
YSJ
-
LGW
23h 25m
2 stops
Multiple Airlines Logo
8:00 a.m. - 11:52 p.m.
LGW
-
YSJ
19h 52m
2 stops
C$ 1,455Multiple Airlines
Fri, 1 May - Sat, 30 May

Air Canada flights from Saint John to London

Our best Air Canada deals on Saint John to London flight tickets
Air Canada
11 May
YSJ4:30 p.m.Saint John
13h 30m
1 stop
LHR10:00 a.m.London Heathrow
20 May
LHR8:40 a.m.London Heathrow
35h 00m
2 stops
YSJ3:40 p.m.Saint John
C$ 1,027
Air Canada
11 May
YSJ4:30 p.m.Saint John
34h 05m
2 stops
LHR6:35 a.m.London Heathrow
20 May
LHR6:50 a.m.London Heathrow
12h 50m
2 stops
YSJ3:40 p.m.Saint John
C$ 1,048
Air Canada
11 May
YSJ4:30 p.m.Saint John
13h 30m
1 stop
LHR10:00 a.m.London Heathrow
20 May
LHR9:30 a.m.London Heathrow
10h 10m
1 stop
YSJ3:40 p.m.Saint John
C$ 1,049

United Airlines flights from Saint John to London

Our best United Airlines deals on Saint John to London flight tickets
United Airlines
18 May
YSJ4:30 p.m.Saint John
25h 05m
2 stops
LHR9:35 p.m.London Heathrow
27 May
LHR12:15 p.m.London Heathrow
31h 25m
2 stops
YSJ3:40 p.m.Saint John
C$ 1,045
United Airlines
11 May
YSJ4:30 p.m.Saint John
25h 05m
2 stops
LHR9:35 p.m.London Heathrow
20 May
LHR12:00 p.m.London Heathrow
15h 52m
2 stops
YSJ11:52 p.m.Saint John
C$ 1,052
United Airlines
19 Mar
YSJ4:15 p.m.Saint John
15h 35m
2 stops
LHR10:50 a.m.London Heathrow
23 Mar
LHR9:10 a.m.London Heathrow
17h 24m
2 stops
YSJ11:34 p.m.Saint John
C$ 1,717

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 27 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 - LHR

YSJLHR

Saint John

Mon 11/5

4:30 p.m.-10:00 a.m.

1 stop13h 30m

London Heathrow

Wed 20/5

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

2 stops35h 00m

C$ 1,027

Saint JohnLondon

YSJ - LHR

YSJLHR

Saint John

Mon 18/5

4:30 p.m.-9:35 p.m.

2 stops25h 05m

London Heathrow

Wed 27/5

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

2 stops31h 25m

C$ 1,045

Saint JohnLondon

YSJ - LHR

YSJLHR

Saint John

Mon 11/5

4:30 p.m.-6:35 a.m.

2 stops34h 05m

London Heathrow

Wed 20/5

6:50 a.m.-3:40 p.m.

2 stops12h 50m

C$ 1,048

Saint JohnLondon

YSJ - LHR

YSJLHR

Saint John

Mon 11/5

4:30 p.m.-10:00 a.m.

1 stop13h 30m

London Heathrow

Wed 20/5

9:30 a.m.-3:40 p.m.

1 stop10h 10m

C$ 1,049

Saint JohnLondon

YSJ - LHR

YSJLHR

Saint John

Mon 11/5

4:30 p.m.-9:35 p.m.

2 stops25h 05m

London Heathrow

Wed 20/5

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

2 stops15h 52m

C$ 1,052

Saint JohnLondon

YSJ - LHR

YSJLHR

Saint John

Mon 11/5

4:30 p.m.-10:00 a.m.

1 stop13h 30m

London Heathrow

Wed 20/5

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

2 stops35h 00m

C$ 1,071

Saint JohnLondon

YSJ - LHR

YSJLHR

Saint John

Thu 9/4

11:55 a.m.-10:00 a.m.

1 stop18h 05m

London Heathrow

Thu 16/4

8:45 a.m.-11:52 p.m.

2 stops19h 07m

C$ 1,079

Saint JohnLondon

YSJ - LHR

YSJLHR

Saint John

Mon 18/5

4:30 p.m.-10:00 a.m.

1 stop13h 30m

London Heathrow

Wed 27/5

6:50 a.m.-3:40 p.m.

2 stops12h 50m

C$ 1,081

Saint JohnLondon

YSJ - LHR

YSJLHR

Saint John

Mon 11/5

4:30 p.m.-10:00 a.m.

1 stop13h 30m

London Heathrow

Wed 20/5

9:30 a.m.-3:40 p.m.

1 stop10h 10m

C$ 1,093

Saint JohnLondon

YSJ - LGW

YSJLGW

Saint John

Fri 1/5

10:45 a.m.-2:10 p.m.

2 stops23h 25m

London Gatwick

Sat 30/5

8:00 a.m.-11:52 p.m.

2 stops19h 52m

C$ 1,455

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 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 and United Airlines are the most popular carriers 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

15h 35m

Direct flights

None
The fastest flight from Saint John to London takes 15h 35m
There are no direct flights from Saint John to London. There are no popular flight routes from Saint John to London.
Search flight deals

  • 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 15h 35m.

  • 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$ 1,156Free CancellationRating
7.1
10,748 reviews
Search Air Canada flights

Travelling to a place near London?

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Hounslow
Wembley
Ilford
Slough
Gatwick
Wokingham
Feltham
Hayes
Waterlooville
Newport
Chelmsford
Basingstoke
Milton Keynes
Dover
Worthing
Guildford
Ipswich
Maidstone
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