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Cheap flights from Saint John to London from C$ 627

YSJ — LON
17 Sep — 24 Sep1
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 28/94:40 p.m. -
2 stops13h 45m
Mon 5/107:45 a.m. -
2 stops36h 14m
Deal found 14/8C$ 1,145
Sun 29/1111:05 a.m. -
2 stops15h 35m
Thu 3/126:00 p.m. -
2 stops44h 25m
Deal found 16/8C$ 1,151
Thu 24/912:50 p.m. -
2 stops19h 05m
Mon 28/94:40 p.m. -
2 stops27h 19m
Deal found 13/8C$ 1,152
Fri 2/105:40 a.m. -
2 stops24h 45m
Sat 10/104:00 p.m. -
2 stops27h 59m
Deal found 17/8C$ 1,158
Tue 15/912:50 p.m. -
2 stops30h 00m
Tue 22/912:40 p.m. -
1 stop15h 11m
Deal found 18/8C$ 1,239
Tue 15/94:40 p.m. -
1 stop9h 50m
Tue 22/99:30 a.m. -
1 stop10h 29m
Deal found 18/8C$ 1,287
Fri 2/104:40 p.m. -
1 stop9h 50m
Sat 10/106:00 a.m. -
2 stops21h 51m
Deal found 14/8C$ 1,310
Sun 29/1111:05 a.m. -
1 stop16h 05m
Thu 3/126:00 a.m. -
2 stops32h 25m
Deal found 16/8C$ 1,313
Sat 10/104:40 p.m. -
1 stop9h 50m
Sat 17/102:05 p.m. -
1 stop29h 54m
Deal found 17/8C$ 1,318
Sat 10/106:55 a.m. -
2 stops21h 00m
Sat 17/107:05 a.m. -
2 stops20h 46m
Deal found 17/8C$ 1,490
Mon 28/910:45 a.m. -
1 stop20h 00m
Mon 5/109:40 a.m. -
2 stops17h 35m
Deal found 14/8C$ 1,669
Thu 24/1211:05 a.m. -
2 stops42h 05m
Mon 28/126:30 a.m. -
2 stops31h 55m
Deal found 14/8C$ 2,765

Find flight deals from St John to London

Round-trip from

C$ 1,145

One-way from

C$ 627
United Airlines
  • United Airlines
  • 28/9-5/10
  • 4 total stops
  • 49h 59m total
  • Saint John to London
Search Deals
1/10
  • 1/10
  • 2 total stops
  • 21h 20m 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 28/9

4:40 p.m.-10:25 a.m.

2 stops13h 45m

London Heathrow

Mon 5/10

7:45 a.m.-3:59 p.m.

2 stops36h 14m

C$ 1,145

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Sat 10/10

4:40 p.m.-8:40 p.m.

2 stops24h 00m

London Heathrow

Sat 17/10

2:10 p.m.-3:59 p.m.

2 stops29h 49m

C$ 1,151

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Fri 2/10

4:40 p.m.-6:55 a.m.

2 stops34h 15m

London Heathrow

Sat 10/10

2:10 p.m.-3:59 p.m.

2 stops29h 49m

C$ 1,151

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Sun 29/11

11:05 a.m.-6:40 a.m.

2 stops15h 35m

London Heathrow

Thu 3/12

6:00 p.m.-10:25 a.m.

2 stops44h 25m

C$ 1,151

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Tue 15/9

4:40 p.m.-10:25 a.m.

2 stops13h 45m

London Heathrow

Tue 22/9

6:00 p.m.-3:59 p.m.

2 stops25h 59m

C$ 1,151

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Thu 24/9

12:50 p.m.-11:55 a.m.

2 stops19h 05m

London Heathrow

Mon 28/9

4:40 p.m.-3:59 p.m.

2 stops27h 19m

C$ 1,152

Saint JohnLondon

YSJ Saint John - LGW London Gatwick

YSJLGW

Saint John

Tue 15/9

12:50 p.m.-10:50 p.m.

2 stops30h 00m

London Gatwick

Tue 22/9

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

1 stop15h 11m

C$ 1,239

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Fri 2/10

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

1 stop13h 20m

London Heathrow

Sat 10/10

12:10 p.m.-3:59 p.m.

2 stops55h 49m

C$ 1,310

Saint JohnLondon

YSJ Saint John - LGW London Gatwick

YSJLGW

Saint John

Mon 28/9

10:45 a.m.-10:45 a.m.

1 stop20h 00m

London Gatwick

Mon 5/10

9:40 a.m.-11:15 p.m.

2 stops17h 35m

C$ 1,669
Quickest round-trip

Saint JohnLondon

YSJ Saint John - LGW London Gatwick

YSJLGW

Saint John

Sat 10/10

6:55 a.m.-7:55 a.m.

2 stops21h 00m

London Gatwick

Sat 17/10

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

1 stop15h 11m

C$ 2,013

Flights are sorted by cheapest round-trip flights first.

Deals found on 17/8

Showing 1-10 of 18 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
11,493 reviews
Check prices

Overall

7.1

Entertainment

6.8

Comfort

7.1

Boarding

7.3

Crew

7.8

Food

6.3

Reviews

1 / 20
8.0
Excellent

Tanis,Jul 2026

YVR - YXC

I needed assistance due to a knee injury and the staff at Air Canada from the checkin right to boarding the plane was incredible! Then on the plane although it was almost full they made it so I DID NOT have anyone seated next to me so I could put my legs up onto the edge of the seat which made things so much easier to travel the hour & a half flight! Very impressed!
Air Canada
7.1
Good
11,493 reviews
Air Canada
7.1
Good
11,493 reviews
Check prices

Overall

7.1

Entertainment

6.8

Comfort

7.1

Boarding

7.3

Crew

7.8

Food

6.3

Reviews

1 / 20
8.0
Excellent

Tanis,Jul 2026

YVR - YXC

I needed assistance due to a knee injury and the staff at Air Canada from the checkin right to boarding the plane was incredible! Then on the plane although it was almost full they made it so I DID NOT have anyone seated next to me so I could put my legs up onto the edge of the seat which made things so much easier to travel the hour & a half flight! Very impressed!

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 13h 45m. 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
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Hounslow
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$ 1,273AverageC$ 1,452FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

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