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Cheap flights from the United Kingdom to Saint John from C$ 836

LHR — YSJ
8 Oct — 15 Oct1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from United Kingdom to St John

Enter your travel dates to find the best prices.

Cheapest flights from United Kingdom to St John

Thu 15/108:45 a.m. -
2 stops19h 06m
Thu 29/1011:05 a.m. -
2 stops19h 15m
Deal found 7/9C$ 836
Sun 18/106:00 a.m. -
2 stops21h 51m
Sun 25/105:00 a.m. -
2 stops13h 00m
Deal found 3/9C$ 853
Sun 18/1012:05 p.m. -
1 stop27h 46m
Sun 25/105:00 a.m. -
1 stop22h 30m
Deal found 3/9C$ 875
Sat 3/109:30 a.m. -
1 stop10h 29m
Tue 27/1011:05 a.m. -
1 stop17h 05m
Deal found 5/9C$ 932
Sat 3/109:30 a.m. -
1 stop10h 29m
Mon 26/106:00 p.m. -
1 stop14h 20m
Deal found 5/9C$ 938
Sat 3/109:30 a.m. -
2 stops18h 21m
Wed 28/105:15 a.m. -
2 stops22h 55m
Deal found 5/9C$ 955

Find flight deals from United Kingdom to St John

Round-trip from

C$ 836

Popular in

December

Cheapest in

February

Average price

C$ 1,361
Air Canada
  • Air Canada
  • 15/10-29/10
  • 4 total stops
  • 38h 21m total
  • United Kingdom to Saint John
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Highest demand for flights based on searches. 9% potential increase in price (C$ 192 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease (C$ 50 potential savings vs. average RT price).
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Average for round-trip flights in September 2026
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from the United Kingdom to Saint John that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LondonSaint John

LHR London Heathrow - YSJ Saint John

LHRYSJ

London Heathrow

Sun 18/10

6:00 a.m.-11:51 p.m.

2 stops21h 51m

Saint John

Sun 25/10

5:00 a.m.-9:00 p.m.

2 stops13h 00m

C$ 853

LondonSaint John

LHR London Heathrow - YSJ Saint John

LHRYSJ

London Heathrow

Sun 18/10

12:05 p.m.-11:51 a.m.

1 stop27h 46m

Saint John

Sun 25/10

5:00 a.m.-6:30 a.m.

1 stop22h 30m

C$ 875
Quickest round-trip

LondonSaint John

LHR London Heathrow - YSJ Saint John

LHRYSJ

London Heathrow

Sat 3/10

9:30 a.m.-3:59 p.m.

1 stop10h 29m

Saint John

Tue 27/10

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

1 stop17h 05m

C$ 933

LondonSaint John

LHR London Heathrow - YSJ Saint John

LHRYSJ

London Heathrow

Sat 3/10

9:30 a.m.-11:51 p.m.

2 stops18h 21m

Saint John

Wed 28/10

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

1 stop17h 05m

C$ 944

LondonSaint John

LHR London Heathrow - YSJ Saint John

LHRYSJ

London Heathrow

Thu 15/10

6:00 a.m.-11:51 p.m.

2 stops21h 51m

Saint John

Mon 19/10

5:00 a.m.-6:30 a.m.

2 stops21h 30m

C$ 1,009

LondonSaint John

LHR London Heathrow - YSJ Saint John

LHRYSJ

London Heathrow

Mon 5/10

2:05 p.m.-11:51 a.m.

2 stops25h 46m

Saint John

Tue 27/10

5:15 a.m.-7:10 a.m.

2 stops22h 55m

C$ 1,071

LondonSaint John

LHR London Heathrow - YSJ Saint John

LHRYSJ

London Heathrow

Fri 23/10

11:05 a.m.-3:59 p.m.

2 stops32h 54m

Saint John

Fri 30/10

5:00 a.m.-5:55 a.m.

2 stops21h 55m

C$ 1,092

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/9

Sorted by cheapest first

Best time to book a flight from United Kingdom to St John

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

Cheapflights Insights

Everything you need to know about your flight from the United Kingdom to Saint John

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

Related info for your journey

  • What airport do you fly into for flights to Saint John from United Kingdom?

    For a flight from United Kingdom to Saint John, you will be flying into Saint John. Saint John (YSJ) is just 15.1 km from the centre of the city.

  • How long is the flight from United Kingdom to Saint John?

    Airlines like Air Canada fly from United Kingdom to Saint John in about 21h 51m. The time it takes to get you to your destination can typically vary by up to . The distance from United Kingdom to Saint John is about 4712 km.

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

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

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

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

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

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

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Need flexible booking options for your flight to St John from United Kingdom? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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