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Cheap flights from London to Saint John from C$ 666

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London to Saint John departing on 9/5. 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 London to Saint John

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
5:15 p.m. - 3:40 p.m.
LHR
-
YSJ
50h 25m
2 stops
Air Canada Logo
12:50 p.m. - 8:35 a.m.
YSJ
-
LHR
39h 45m
2 stops
C$ 1,076Air Canada
Tue, 5 May - Tue, 12 May
Air Canada Logo
9:30 a.m. - 11:52 p.m.
LHR
-
YSJ
18h 22m
2 stops
Air Canada Logo
4:30 p.m. - 10:00 a.m.
YSJ
-
LHR
13h 30m
1 stop
C$ 1,101Air Canada
Tue, 5 May - Tue, 12 May
Air Canada Logo
12:40 p.m. - 11:51 p.m.
LHR
-
YSJ
39h 11m
2 stops
Air Canada Logo
4:30 p.m. - 10:00 a.m.
YSJ
-
LHR
13h 30m
1 stop
C$ 1,154Air Canada
Thu, 17 Sep - Mon, 21 Sep
Air Canada Logo
2:05 p.m. - 3:49 p.m.
LHR
-
YSJ
29h 44m
1 stop
Air Canada Logo
5:40 a.m. - 9:00 p.m.
YSJ
-
LHR
35h 20m
2 stops
C$ 1,156Air Canada
Thu, 17 Sep - Mon, 21 Sep
Air Canada Logo
9:30 a.m. - 11:56 a.m.
LHR
-
YSJ
30h 26m
2 stops
Air Canada Logo
4:30 p.m. - 10:00 a.m.
YSJ
-
LHR
13h 30m
1 stop
C$ 1,158Air Canada
Thu, 17 Sep - Mon, 21 Sep
Air Canada Logo
9:30 a.m. - 11:51 p.m.
LHR
-
YSJ
18h 21m
2 stops
Air Canada Logo
4:30 p.m. - 9:00 p.m.
YSJ
-
LHR
24h 30m
2 stops
C$ 1,159Air Canada
Thu, 17 Sep - Mon, 21 Sep
Air Canada Logo
9:30 a.m. - 11:51 p.m.
LHR
-
YSJ
18h 21m
2 stops
Air Canada Logo
12:50 p.m. - 6:30 a.m.
YSJ
-
LHR
13h 40m
2 stops
C$ 1,163Air Canada
Thu, 17 Sep - Mon, 21 Sep
Air Canada Logo
9:30 a.m. - 11:51 p.m.
LHR
-
YSJ
18h 21m
2 stops
Air Canada Logo
12:50 p.m. - 6:30 a.m.
YSJ
-
LHR
13h 40m
2 stops
C$ 1,165Air Canada
Thu, 17 Sep - Mon, 21 Sep
Air Canada Logo
9:30 a.m. - 3:40 p.m.
LHR
-
YSJ
10h 10m
1 stop
Air Canada Logo
4:30 p.m. - 6:30 a.m.
YSJ
-
LHR
10h 00m
1 stop
C$ 1,181Air Canada
Tue, 5 May - Tue, 12 May
Air Canada Logo
12:40 p.m. - 11:56 a.m.
LHR
-
YSJ
27h 16m
2 stops
Air Canada Logo
4:30 p.m. - 10:00 a.m.
YSJ
-
LHR
13h 30m
1 stop
C$ 1,191Air Canada
Thu, 17 Sep - Mon, 21 Sep

Air Canada flights from London to Saint John

Our best Air Canada deals on London to Saint John flight tickets
Air Canada
5 May
LHR5:15 p.m.London Heathrow
50h 25m
2 stops
YSJ3:40 p.m.Saint John
12 May
YSJ12:50 p.m.Saint John
39h 45m
2 stops
LHR8:35 a.m.London Heathrow
C$ 1,076
Air Canada
5 May
LHR9:30 a.m.London Heathrow
18h 22m
2 stops
YSJ11:52 p.m.Saint John
12 May
YSJ4:30 p.m.Saint John
13h 30m
1 stop
LHR10:00 a.m.London Heathrow
C$ 1,101
Air Canada
17 Sep
LHR12:40 p.m.London Heathrow
39h 11m
2 stops
YSJ11:51 p.m.Saint John
21 Sep
YSJ4:30 p.m.Saint John
13h 30m
1 stop
LHR10:00 a.m.London Heathrow
C$ 1,154

United Airlines flights from London to Saint John

Our best United Airlines deals on London to Saint John flight tickets
United Airlines
7 May
LHR2:10 p.m.London Heathrow
29h 30m
2 stops
YSJ3:40 p.m.Saint John
14 May
YSJ5:35 a.m.Saint John
21h 40m
2 stops
LHR7:15 a.m.London Heathrow
C$ 1,335
United Airlines
10 May
LHR8:00 a.m.London Heathrow
19h 52m
2 stops
YSJ11:52 p.m.Saint John
17 May
YSJ4:30 p.m.Saint John
25h 05m
2 stops
LHR9:35 p.m.London Heathrow
C$ 1,581
United Airlines
16 Apr
LHR4:40 p.m.London Heathrow
22h 35m
2 stops
YSJ11:15 a.m.Saint John
28 Apr
YSJ11:55 a.m.Saint John
18h 45m
2 stops
LHR10:40 a.m.London Heathrow
C$ 7,675

momondo Fare Finder

 
Customize your flight search to find flights from London to Saint John 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 28 March 2026.
Use the filters below to find and compare flights from London to Saint John that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LondonSaint John

LHR - YSJ

LHRYSJ

London Heathrow

Tue 5/5

5:15 p.m.-3:40 p.m.

2 stops50h 25m

Saint John

Tue 12/5

12:50 p.m.-8:35 a.m.

2 stops39h 45m

C$ 1,076

LondonSaint John

LHR - YSJ

LHRYSJ

London Heathrow

Tue 5/5

9:30 a.m.-11:52 p.m.

2 stops18h 22m

Saint John

Tue 12/5

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

1 stop13h 30m

C$ 1,101

LondonSaint John

LHR - YSJ

LHRYSJ

London Heathrow

Thu 17/9

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

2 stops39h 11m

Saint John

Mon 21/9

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

1 stop13h 30m

C$ 1,154

LondonSaint John

LHR - YSJ

LHRYSJ

London Heathrow

Thu 17/9

2:05 p.m.-3:49 p.m.

1 stop29h 44m

Saint John

Mon 21/9

5:40 a.m.-9:00 p.m.

2 stops35h 20m

C$ 1,156

LondonSaint John

LHR - YSJ

LHRYSJ

London Heathrow

Thu 17/9

9:30 a.m.-11:56 a.m.

2 stops30h 26m

Saint John

Mon 21/9

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

1 stop13h 30m

C$ 1,158

LondonSaint John

LHR - YSJ

LHRYSJ

London Heathrow

Thu 17/9

9:30 a.m.-11:51 p.m.

2 stops18h 21m

Saint John

Mon 21/9

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

2 stops24h 30m

C$ 1,159

LondonSaint John

LHR - YSJ

LHRYSJ

London Heathrow

Thu 17/9

9:30 a.m.-11:51 p.m.

2 stops18h 21m

Saint John

Mon 21/9

12:50 p.m.-6:30 a.m.

2 stops13h 40m

C$ 1,163

LondonSaint John

LHR - YSJ

LHRYSJ

London Heathrow

Thu 17/9

9:30 a.m.-11:51 p.m.

2 stops18h 21m

Saint John

Mon 21/9

12:50 p.m.-6:30 a.m.

2 stops13h 40m

C$ 1,165
Quickest round-trip

LondonSaint John

LHR - YSJ

LHRYSJ

London Heathrow

Tue 5/5

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

1 stop10h 10m

Saint John

Tue 12/5

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

1 stop10h 00m

C$ 1,181

LondonSaint John

LHR - YSJ

LHRYSJ

London Heathrow

Thu 17/9

12:40 p.m.-11:56 a.m.

2 stops27h 16m

Saint John

Mon 21/9

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

1 stop13h 30m

C$ 1,191

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first
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See travel insights to Saint John from

How to get the cheapest flight ticket from London to Saint John

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 month to fly to Saint John?

If you don’t want to visit Saint John in February, then you should wait until June to fly from London, when ticket prices are also cheap, with an average price of C$ 912.

When to book flights from London to Saint John

Are you open to changing your travel dates? Check out the ideal times to fly from London to Saint John according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap London to Saint John (LON to YSJ) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London to Saint John

Fastest flight time

18h 22m

Direct flights

None
The fastest flight from London to Saint John takes 18h 22m
There are no direct flights from London to Saint John. There are no popular flight routes from London to Saint John.
Search flight deals

  • How far is London to Saint John by plane?

    Saint John is 4747.7 km away from London. By plane, this route typically takes 18h 22m.

  • When did momondo last update prices for flights from London to Saint John Airport?

    Prices for flights from London to Saint John Airport refresh daily.

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London to Saint John Airport.

  • What documentation or ID do you need to fly to Saint John Airport?

    The travel and health documents required for your trip to Saint John Airport 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 Saint John Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Travelling to a place near Saint John?

Book flights to Saint John if you plan to visit one of these locations
Sussex

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from London to Saint John for you.

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

Yes. All flights to Saint John from London on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo provides multiple filters to help you find the best flight to Saint John from London. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes. momondo can track prices for London to Saint John flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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