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Cheap flights from Saint John to London from C$ 1,132

YSJ — LON
26 Oct — 2 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

Fri 2/104:40 p.m. -
2 stops34h 15m
Sat 10/1012:00 p.m. -
2 stops31h 59m
Deal found 25/9C$ 1,153
Mon 19/104:40 p.m. -
2 stops48h 00m
Mon 26/1012:05 p.m. -
2 stops49h 14m
Deal found 21/9C$ 1,164
Thu 5/115:20 a.m. -
1 stop21h 10m
Thu 12/119:00 a.m. -
2 stops18h 24m
Deal found 21/9C$ 1,318
Fri 2/104:40 p.m. -
2 stops24h 20m
Sat 10/109:30 a.m. -
1 stop10h 29m
Deal found 26/9C$ 1,334
Fri 2/1012:50 p.m. -
1 stop13h 45m
Sat 10/102:05 p.m. -
2 stops25h 36m
Deal found 23/9C$ 1,335

Find flight deals from St John to London

Round-trip from

C$ 1,164

One-way from

C$ 1,132
United Airlines
  • United Airlines
  • 19/10-26/10
  • 4 total stops
  • 97h 14m total
  • Saint John to London
Search Deals
United Airlines
  • United Airlines
  • 7/11-31/12
  • 2 total stops
  • 47h 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

Sat 7/11

5:35 p.m.-9:20 p.m.

2 stops47h 45m

London Heathrow

Wed 31/12

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

Nonstop0h 00m

C$ 1,132

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Thu 5/11

11:05 a.m.-6:20 a.m.

2 stops39h 15m

London Heathrow

Thu 12/11

6:00 p.m.-10:19 a.m.

2 stops44h 19m

C$ 1,164

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$ 1,167

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.-11:24 p.m.

2 stops18h 24m

C$ 1,324

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Mon 19/10

4:40 p.m.-10:00 a.m.

1 stop13h 20m

London Heathrow

Mon 26/10

11:10 a.m.-11:24 p.m.

2 stops15h 14m

C$ 1,347

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Wed 7/10

6:55 a.m.-8:20 p.m.

3 stops33h 25m

London Heathrow

Wed 31/12

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

Nonstop0h 00m

C$ 3,045
Quickest round-trip

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Wed 7/10

4:40 p.m.-6:30 a.m.

1 stop9h 50m

London Heathrow

Wed 31/12

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

Nonstop0h 00m

C$ 5,870

Flights are sorted by cheapest round-trip flights first.

Deals found on 23/9

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
11,686 reviews
Check prices

Crew

7.8

Overall

7.1

Food

6.3

Boarding

7.3

Comfort

7.1

Entertainment

6.8

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
11,686 reviews
Air Canada
7.1
Good
11,686 reviews
Check prices

Crew

7.8

Overall

7.1

Food

6.3

Boarding

7.3

Comfort

7.1

Entertainment

6.8

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 United Airlines fly from Saint John to London in about 39h 15m. 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?

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High Wycombe

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Top airline flying from St John to London

AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 1,310AverageC$ 1,482FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

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