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Cheap flights from the United Kingdom to Saint John from C$ 628

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 31/8. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — YSJ
14 Sep — 21 Sep1
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
Explore the most affordable flight options available from United Kingdom to St John. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 August 2026.

Thu 3/96:50 a.m. -
2 stops22h 35m
Wed 9/94:40 p.m. -
2 stops33h 50m
Deal found 11/8C$ 917
Fri 25/99:30 a.m. -
1 stop10h 29m
Fri 2/104:40 p.m. -
1 stop9h 50m
Deal found 11/8C$ 929
Thu 24/96:50 a.m. -
2 stops21h 01m
Mon 28/94:40 p.m. -
1 stop13h 20m
Deal found 13/8C$ 931
Fri 9/107:30 a.m. -
2 stops20h 21m
Fri 16/104:40 p.m. -
2 stops16h 10m
Deal found 10/8C$ 938
Thu 10/912:05 p.m. -
1 stop15h 46m
Thu 17/95:00 a.m. -
1 stop26h 50m
Deal found 13/8C$ 942

Find flight deals from United Kingdom to St John

Keep the following information in mind while searching for United Kingdom to St John flight deals. Data was last updated 15 August 2026.

Round-trip from

C$ 917

One-way from

C$ 628

Popular in

October

Cheapest in

February

Average price

C$ 1,614
Air Canada
  • Air Canada
  • 3/9-9/9
  • 4 total stops
  • 56h 25m total
  • United Kingdom to Saint John
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31/8
  • 31/8
  • 3 total stops
  • 40h 50m total
  • United Kingdom to Saint John
Search Deals
Highest demand for flights based on searches. 1% potential increase in price (C$ 19 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (C$ 88 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2026
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Cheapflights Fare Finder

 
Customize your flight search to find flights from United Kingdom to St John that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 15 August 2026.
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

Fri 11/9

8:40 a.m.-3:59 p.m.

2 stops35h 19m

Saint John

Fri 18/9

5:00 a.m.-6:35 a.m.

1 stop21h 35m

C$ 922
Quickest round-trip

LondonSaint John

LHR London Heathrow - YSJ Saint John

LHRYSJ

London Heathrow

Thu 24/9

6:50 a.m.-11:51 p.m.

2 stops21h 01m

Saint John

Mon 28/9

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

1 stop13h 20m

C$ 931

LondonSaint John

LHR London Heathrow - YSJ Saint John

LHRYSJ

London Heathrow

Fri 9/10

7:30 a.m.-11:51 p.m.

2 stops20h 21m

Saint John

Fri 16/10

4:40 p.m.-12:50 p.m.

2 stops16h 10m

C$ 938

LondonSaint John

LHR London Heathrow - YSJ Saint John

LHRYSJ

London Heathrow

Thu 10/9

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

2 stops13h 46m

Saint John

Thu 17/9

5:00 a.m.-8:35 a.m.

1 stop23h 35m

C$ 946

LondonSaint John

LHR London Heathrow - YSJ Saint John

LHRYSJ

London Heathrow

Wed 9/9

7:25 a.m.-3:59 p.m.

2 stops36h 34m

Saint John

Wed 16/9

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

2 stops20h 55m

C$ 968
Cheapest one-way

LondonSaint John

LHR London Heathrow - YSJ Saint John

LHRYSJ

London Heathrow

Sun 30/8

8:50 a.m.-11:15 p.m.

3 stops18h 25m

C$ 1,200

LondonSaint John

LHR London Heathrow - YSJ Saint John

LHRYSJ

London Heathrow

Fri 28/8

7:40 a.m.-11:15 p.m.

3 stops19h 35m

C$ 1,228

LondonSaint John

LHR London Heathrow - YSJ Saint John

LHRYSJ

London Heathrow

Sat 29/8

5:50 p.m.-1:30 a.m.

1 stop11h 40m

C$ 2,192
Quickest one-way

LondonSaint John

LHR London Heathrow - YSJ Saint John

LHRYSJ

London Heathrow

Wed 26/8

9:30 a.m.-4:00 p.m.

1 stop10h 30m

C$ 2,753

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/8

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
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

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

Find useful and relevant information for your journey from United Kingdom to St John. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • 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 22h 35m. 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.

See more FAQs

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Deals for United Kingdom to St John flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from United Kingdom to St John?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from United Kingdom to St John for you. Better yet — we are completely free to use.

Can Cheapflights find flights from United Kingdom to St John with no change fees?

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.

Can Cheapflights notify me if prices for flights from United Kingdom to St John become cheaper?

Yes! Start tracking prices for United Kingdom to St John flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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