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Cheap flights from Saint John to London from C$ 779

YSJ — LON
12 Nov — 19 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

Tue 10/1111:05 a.m. -
1 stop16h 05m
Tue 17/119:00 a.m. -
2 stops29h 19m
Deal found 11/10C$ 1,126
Wed 4/1111:05 a.m. -
1 stop16h 05m
Mon 16/119:00 a.m. -
2 stops29h 19m
Deal found 9/10C$ 1,127
Tue 3/115:15 a.m. -
1 stop23h 15m
Mon 16/119:00 a.m. -
2 stops29h 19m
Deal found 9/10C$ 1,133
Wed 4/1111:05 a.m. -
1 stop16h 05m
Mon 16/116:00 p.m. -
1 stop33h 28m
Deal found 9/10C$ 1,150
Tue 3/115:15 a.m. -
2 stops35h 45m
Mon 16/119:00 a.m. -
2 stops29h 19m
Deal found 9/10C$ 1,157
Tue 24/1111:05 a.m. -
1 stop16h 05m
Mon 30/1111:10 a.m. -
2 stops16h 18m
Deal found 10/10C$ 1,163

Find flight deals from St John to London

Round-trip from

C$ 1,126

One-way from

C$ 779
10/11-17/11
  • 10/11-17/11
  • 3 total stops
  • 45h 24m total
  • Saint John to London
Search Deals
26/11-31/12
  • 26/11-31/12
  • 3 total stops
  • 45h 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

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Thu 26/11

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

3 stops45h 45m

London Heathrow

Wed 31/12

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

Nonstop0h 00m

C$ 779

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Thu 26/11

11:05 a.m.-11:20 a.m.

2 stops20h 15m

London Heathrow

Wed 31/12

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

Nonstop0h 00m

C$ 823

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Mon 23/11

5:35 p.m.-9:05 p.m.

3 stops23h 30m

London Heathrow

Wed 31/12

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

Nonstop0h 00m

C$ 905
Quickest round-trip

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Tue 5/1

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

1 stop16h 05m

London Heathrow

Wed 31/12

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

Nonstop0h 00m

C$ 1,076

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Mon 23/11

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

1 stop16h 05m

London Heathrow

Wed 31/12

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

Nonstop0h 00m

C$ 1,079

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Mon 4/1

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

1 stop16h 05m

London Heathrow

Wed 31/12

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

Nonstop0h 00m

C$ 1,116

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Sun 3/1

5:35 p.m.-6:30 a.m.

1 stop32h 55m

London Heathrow

Wed 31/12

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

Nonstop0h 00m

C$ 1,123

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Tue 10/11

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

1 stop16h 05m

London Heathrow

Tue 17/11

9:00 a.m.-10:19 a.m.

2 stops29h 19m

C$ 1,126

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Wed 4/11

11:05 a.m.-6:30 a.m.

2 stops15h 25m

London Heathrow

Mon 16/11

9:00 a.m.-10:19 a.m.

2 stops29h 19m

C$ 1,138

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$ 1,146

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

Showing 1-10 of 13 resultsSorted by cheapest first
1
2

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
11,763 reviews
Check prices

Comfort

7.1

Food

6.3

Entertainment

6.8

Boarding

7.3

Overall

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
11,763 reviews
Air Canada
7.1
Good
11,763 reviews
Check prices

Comfort

7.1

Food

6.3

Entertainment

6.8

Boarding

7.3

Overall

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 1 airline.

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

    Airlines like Air Canada fly from Saint John to London in about 15h 25m. 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

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Gatwick
Romford
Twickenham
Ilford
Bromley
Sutton
Luton
Slough
Marlow
Cobham
Hounslow
Wembley
Watford
High Wycombe

Browse thousands of different options on Cheapflights for your next trip

Top airline flying from St John to London

AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 1,321AverageC$ 1,495FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

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