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Cheap flights from Saint John to London from C$ 866

YSJ — LON
2 Nov — 9 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 16/1111:05 a.m. -
2 stops43h 20m
Mon 23/1112:05 p.m. -
2 stops26h 14m
Deal found 2/10C$ 1,154
Sat 31/106:00 p.m. -
2 stops56h 55m
Sun 8/1112:05 p.m. -
2 stops50h 14m
Deal found 29/9C$ 1,162
Fri 2/105:00 a.m. -
2 stops21h 55m
Sat 10/1010:25 a.m. -
2 stops33h 34m
Deal found 29/9C$ 1,164
Mon 16/1111:05 a.m. -
1 stop16h 05m
Mon 23/119:00 a.m. -
2 stops29h 19m
Deal found 2/10C$ 1,311
Fri 2/104:40 p.m. -
2 stops24h 20m
Sat 10/109:30 a.m. -
1 stop10h 29m
Deal found 29/9C$ 1,341
Thu 24/125:35 p.m. -
2 stops23h 25m
Wed 13/19:00 a.m. -
2 stops29h 25m
Deal found 1/10C$ 1,411
Thu 24/125:35 p.m. -
2 stops23h 25m
Tue 12/19:00 a.m. -
2 stops29h 25m
Deal found 1/10C$ 1,435
Thu 24/125:35 p.m. -
2 stops23h 25m
Mon 11/16:50 a.m. -
2 stops31h 35m
Deal found 1/10C$ 1,449

Find flight deals from St John to London

Round-trip from

C$ 1,154

One-way from

C$ 866
United Airlines
  • United Airlines
  • 16/11-23/11
  • 4 total stops
  • 69h 34m total
  • Saint John to London
Search Deals
16/11-31/12
  • 16/11-31/12
  • 3 total stops
  • 24h 35m 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

Mon 16/11

11:05 a.m.-3:40 p.m.

3 stops24h 35m

London Heathrow

Wed 31/12

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

Nonstop0h 00m

C$ 866

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Thu 12/11

5:20 a.m.-12:50 p.m.

3 stops27h 30m

London Heathrow

Wed 31/12

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

Nonstop0h 00m

C$ 928

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Sat 14/11

11:05 a.m.-10:50 a.m.

3 stops19h 45m

London Heathrow

Wed 31/12

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

Nonstop0h 00m

C$ 1,072

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Mon 16/11

11:05 a.m.-12:00 p.m.

2 stops20h 55m

London Heathrow

Wed 31/12

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

Nonstop0h 00m

C$ 1,127

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Mon 16/11

11:05 a.m.-10:25 a.m.

2 stops43h 20m

London Heathrow

Mon 23/11

12:05 p.m.-10:19 a.m.

2 stops26h 14m

C$ 1,154

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Mon 18/1

11:05 a.m.-5:55 a.m.

2 stops38h 50m

London Heathrow

Fri 22/1

12:00 p.m.-10:25 a.m.

2 stops26h 25m

C$ 1,169
Quickest round-trip

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Thu 12/11

11:05 a.m.-9:20 a.m.

2 stops18h 15m

London Heathrow

Wed 31/12

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

Nonstop0h 00m

C$ 1,190

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Fri 13/11

11:05 a.m.-10:50 a.m.

2 stops43h 45m

London Heathrow

Wed 31/12

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

Nonstop0h 00m

C$ 1,229

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

9:00 a.m.-11:54 p.m.

2 stops18h 54m

C$ 1,325

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/10

Sorted by cheapest first

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
11,712 reviews
Check prices

Comfort

7.1

Entertainment

6.8

Crew

7.8

Boarding

7.3

Food

6.3

Overall

7.1

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
11,712 reviews
Air Canada
7.1
Good
11,712 reviews
Check prices

Comfort

7.1

Entertainment

6.8

Crew

7.8

Boarding

7.3

Food

6.3

Overall

7.1

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 United Airlines fly from Saint John to London in about 43h 20m. 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$ 1,318AverageC$ 1,491FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

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