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Cheap flights from Saint John to London from C$ 571

YSJ — LON
10 Oct — 17 Oct1
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

Sat 12/94:40 p.m. -
2 stops34h 35m
Sat 19/96:00 p.m. -
2 stops25h 59m
Deal found 7/9C$ 1,144
Fri 2/104:40 p.m. -
2 stops34h 15m
Sat 10/1012:00 p.m. -
2 stops31h 59m
Deal found 9/9C$ 1,148
Thu 8/105:00 a.m. -
2 stops21h 30m
Mon 12/105:40 p.m. -
1 stop22h 11m
Deal found 8/9C$ 1,310
Fri 2/104:40 p.m. -
1 stop13h 20m
Sat 10/106:50 a.m. -
2 stops21h 01m
Deal found 6/9C$ 1,314
Sat 12/94:40 p.m. -
1 stop9h 50m
Sat 19/95:40 p.m. -
2 stops26h 19m
Deal found 7/9C$ 1,325
Thu 8/106:55 a.m. -
2 stops23h 50m
Mon 12/109:40 a.m. -
1 stop18h 11m
Deal found 8/9C$ 1,657
Sat 12/96:55 a.m. -
2 stops23h 50m
Sat 19/99:40 a.m. -
2 stops17h 35m
Deal found 7/9C$ 2,283

Find flight deals from St John to London

Round-trip from

C$ 1,148

One-way from

C$ 571
United Airlines
  • United Airlines
  • 2/10-10/10
  • 4 total stops
  • 66h 14m total
  • Saint John to London
Search Deals
23/10-31/12
  • 23/10-31/12
  • 1 total stop
  • 20h 00m 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 - LGW London Gatwick

YSJLGW

Saint John

Fri 23/10

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

1 stop20h 00m

London Gatwick

Wed 31/12

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

Nonstop0h 00m

C$ 571

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Fri 23/10

10:45 a.m.-6:35 a.m.

1 stop15h 50m

London Heathrow

Wed 31/12

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

Nonstop0h 00m

C$ 625

Saint JohnLondon

YSJ Saint John - LGW London Gatwick

YSJLGW

Saint John

Tue 20/10

12:50 p.m.-10:45 a.m.

1 stop17h 55m

London Gatwick

Wed 31/12

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

Nonstop0h 00m

C$ 640
Quickest round-trip

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Tue 20/10

12:50 p.m.-8:35 a.m.

1 stop15h 45m

London Heathrow

Wed 31/12

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

Nonstop0h 00m

C$ 698

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Tue 20/10

6:55 a.m.-5:20 p.m.

3 stops30h 25m

London Heathrow

Wed 31/12

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

Nonstop0h 00m

C$ 796

Saint JohnLondon

YSJ Saint John - LGW London Gatwick

YSJLGW

Saint John

Thu 7/1

6:55 a.m.-9:45 a.m.

2 stops22h 50m

London Gatwick

Wed 31/12

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

Nonstop0h 00m

C$ 1,091

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Tue 5/1

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

1 stop16h 05m

London Heathrow

Wed 31/12

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

Nonstop0h 00m

C$ 1,095

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Wed 6/1

11:05 a.m.-8:30 a.m.

2 stops17h 25m

London Heathrow

Wed 31/12

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

Nonstop0h 00m

C$ 1,106

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Sat 9/1

11:05 a.m.-8:35 p.m.

2 stops53h 30m

London Heathrow

Wed 31/12

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

Nonstop0h 00m

C$ 1,108

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

12:00 p.m.-3:59 p.m.

2 stops31h 59m

C$ 1,148

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/9

Showing 1-10 of 15 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
11,603 reviews
Check prices

Entertainment

6.8

Boarding

7.3

Crew

7.8

Comfort

7.1

Food

6.3

Overall

7.1

Reviews

1 / 20
2.0
Mediocre

Sylvia,Aug 2026

YYZ - PHL

Our flight from Kelowna was 5 hours delayed. We missed our connection. We were able to get to a hotel by 3:00 a.m. but the breakfast cost us $40. The hotel was good. We were rescheduled for the flight the next night when it was canceled. There were no hotel vouchers available which didn't matter because there were no hotel rooms available. We decided to just drive which was not easy doing a one-way rental to the United States. Worst possible trip I've ever had
Air Canada
7.1
Good
11,603 reviews
Air Canada
7.1
Good
11,603 reviews
Check prices

Entertainment

6.8

Boarding

7.3

Crew

7.8

Comfort

7.1

Food

6.3

Overall

7.1

Reviews

1 / 20
2.0
Mediocre

Sylvia,Aug 2026

YYZ - PHL

Our flight from Kelowna was 5 hours delayed. We missed our connection. We were able to get to a hotel by 3:00 a.m. but the breakfast cost us $40. The hotel was good. We were rescheduled for the flight the next night when it was canceled. There were no hotel vouchers available which didn't matter because there were no hotel rooms available. We decided to just drive which was not easy doing a one-way rental to the United States. Worst possible trip I've ever had

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 34h 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?

Book flights to London if you plan to visit one of these locations
Gatwick
Romford
Twickenham
Ilford
Bromley
Sutton
Luton
Slough
Marlow
Cobham
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$ 1,276AverageC$ 1,444FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

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