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Cheap flights from Saint John to London from C$ 736

YSJ — LON
20 Nov — 27 Nov1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from St John to London

Enter your travel dates to find the best prices.

Cheapest flights from St John to London

Mon 7/1211:05 a.m. -
1 stop16h 05m
Thu 28/19:00 a.m. -
2 stops29h 25m
Deal found 20/10C$ 1,117
Thu 3/1211:05 a.m. -
1 stop16h 05m
Thu 10/126:00 a.m. -
2 stops21h 58m
Deal found 19/10C$ 1,126
Mon 7/1211:05 a.m. -
1 stop16h 05m
Thu 28/11:00 p.m. -
1 stop25h 25m
Deal found 20/10C$ 1,140
Sun 15/1111:05 a.m. -
1 stop16h 05m
Sun 22/116:00 a.m. -
2 stops21h 38m
Deal found 18/10C$ 1,141
Thu 3/1211:05 a.m. -
2 stops22h 40m
Thu 10/126:00 p.m. -
3 stops20h 25m
Deal found 19/10C$ 1,748
Wed 28/106:00 p.m. -
1 stop11h 30m
Fri 30/106:00 a.m. -
2 stops20h 24m
Deal found 16/10C$ 2,101

Find flight deals from St John to London

Round-trip from

C$ 1,117

One-way from

C$ 736
Air Canada
  • Air Canada
  • 7/12-28/1
  • 3 total stops
  • 45h 30m total
  • Saint John to London
Search Deals
Air Canada
  • Air Canada
  • 16/11-31/12
  • 1 total stop
  • 13h 45m total
  • Saint John to London
Search Deals

Cheapflights Fare Finder

 
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
Quickest round-trip

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Mon 16/11

5:35 p.m.-11:20 a.m.

1 stop13h 45m

London Heathrow

Wed 31/12

12:00 a.m.-7:00 p.m.

Nonstop0h 00m

C$ 736

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Thu 3/12

5:35 p.m.-9:35 p.m.

3 stops48h 00m

London Heathrow

Wed 31/12

12:00 a.m.-7:00 p.m.

Nonstop0h 00m

C$ 739

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Fri 4/12

11:05 a.m.-12:50 p.m.

3 stops21h 45m

London Heathrow

Wed 31/12

12:00 a.m.-7:00 p.m.

Nonstop0h 00m

C$ 853

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Wed 28/10

5:15 a.m.-12:00 p.m.

2 stops27h 45m

London Heathrow

Wed 31/12

12:00 a.m.-7:00 p.m.

Nonstop0h 00m

C$ 1,025

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Mon 26/10

11:05 a.m.-7:10 a.m.

1 stop17h 05m

London Heathrow

Wed 31/12

12:00 a.m.-7:00 p.m.

Nonstop0h 00m

C$ 1,088

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Tue 27/10

6:00 p.m.-11:20 a.m.

1 stop14h 20m

London Heathrow

Wed 31/12

12:00 a.m.-7:00 p.m.

Nonstop0h 00m

C$ 1,095

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Thu 3/12

11:05 a.m.-7:10 a.m.

1 stop16h 05m

London Heathrow

Thu 10/12

6:00 a.m.-11:58 p.m.

2 stops21h 58m

C$ 1,126

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Mon 18/1

11:05 a.m.-7:10 a.m.

1 stop16h 05m

London Heathrow

Fri 22/1

6:00 a.m.-11:54 p.m.

2 stops21h 54m

C$ 1,137

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Sun 15/11

11:05 a.m.-7:10 a.m.

1 stop16h 05m

London Heathrow

Sun 22/11

6:00 a.m.-11:38 p.m.

2 stops21h 38m

C$ 1,141

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Thu 21/1

11:05 a.m.-7:10 a.m.

1 stop16h 05m

London Heathrow

Sun 31/1

6:00 a.m.-11:54 p.m.

2 stops21h 54m

C$ 1,147

Flights are sorted by cheapest round-trip flights first.

Deals found on 17/10

Showing 1-10 of 13 resultsSorted by cheapest first
1
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Best time to book a flight from St John to London

Have a flexible travel schedule? Discover the best time to fly to London from St John with our price prediction graph.
Estimated round-trip price

Cheapflights Insights

Everything you need to know about your flight from Saint John to London

No data available for this route at this time. Please check back soon.

Reviews of airlines servicing London

Check out reviews from past customers who have flown with Air Canada from Saint John to London to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Canada
7.1
Good
11,790 reviews
Check prices

Overall

7.1

Food

6.3

Entertainment

6.8

Boarding

7.3

Comfort

7.1

Crew

7.8

Reviews

1 / 20
2.0
Mediocre

Hazel,Sep 2026

YYC - FRA

Air Canada cancelled our flight and rebooked us on Lufthansa, where we had to pay for checked luggage. We originally chose Air Canada because our Aeroplan credit card includes a free checked bag. It’s frustrating to face an extra charge because of a change we didn’t choose.
Air Canada
7.1
Good
11,790 reviews
Air Canada
7.1
Good
11,790 reviews
Check prices

Overall

7.1

Food

6.3

Entertainment

6.8

Boarding

7.3

Comfort

7.1

Crew

7.8

Reviews

1 / 20
2.0
Mediocre

Hazel,Sep 2026

YYC - FRA

Air Canada cancelled our flight and rebooked us on Lufthansa, where we had to pay for checked luggage. We originally chose Air Canada because our Aeroplan credit card includes a free checked bag. It’s frustrating to face an extra charge because of a change we didn’t choose.

Related info for your journey

  • What airport do you fly from for flights from Saint John to London?

    Located just 15.1 km from the city centre, Saint John is the airport most travellers will use when flying to London from Saint John. Booking flights from Saint John (YSJ) to London should be relatively easy as there are 0 daily outbound flights to London from 0 different airlines.

  • How long is the flight from Saint John to London?

    Airlines like Air Canada fly from Saint John to London in about 16h 05m. The time it takes to get you to your destination can typically vary by up to . Saint John and London are separated by a distance of 4712 km.

  • Can I find deals for flights from St John to London that include hotel bookings?

    Yes. In addition to deals on St John to London flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St John to London?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St John to London.

  • Can I find deals for business class flights from St John to London?

    Yes. Cheapflights offers flight deals from St John to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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