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Cheap flights from Saint John to London from C$ 609

YSJ — LON
4 Oct — 11 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

Fri 2/104:40 p.m. -
2 stops24h 45m
Sat 10/1012:15 p.m. -
2 stops31h 44m
Deal found 31/8C$ 1,145
Wed 11/1111:05 a.m. -
2 stops14h 50m
Sat 14/1112:50 p.m. -
2 stops25h 35m
Deal found 1/9C$ 1,146
Wed 11/1111:05 a.m. -
1 stop16h 05m
Sat 14/1112:00 p.m. -
2 stops26h 25m
Deal found 1/9C$ 1,296
Fri 2/104:40 p.m. -
1 stop13h 20m
Sat 10/107:30 p.m. -
2 stops48h 29m
Deal found 31/8C$ 1,299
Sun 18/104:40 p.m. -
1 stop9h 50m
Sun 25/107:40 a.m. -
2 stops18h 44m
Deal found 3/9C$ 1,310
Wed 11/1111:05 a.m. -
1 stop16h 05m
Sat 14/111:00 p.m. -
1 stop25h 25m
Deal found 1/9C$ 1,318
Wed 11/116:00 p.m. -
2 stops19h 50m
Sat 14/116:40 p.m. -
2 stops32h 44m
Deal found 1/9C$ 1,367
Wed 11/116:55 a.m. -
2 stops22h 50m
Sun 15/1111:40 a.m. -
3 stops39h 35m
Deal found 1/9C$ 2,012
Sun 18/1012:50 p.m. -
2 stops16h 35m
Sun 25/1010:00 a.m. -
2 stops16h 24m
Deal found 3/9C$ 2,090

Find flight deals from St John to London

Round-trip from

C$ 1,145

One-way from

C$ 609
United Airlines
  • United Airlines
  • 2/10-10/10
  • 4 total stops
  • 56h 29m total
  • Saint John to London
Search Deals
13/10-31/12
  • 13/10-31/12
  • 1 total stop
  • 13h 10m 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
Quickest round-trip

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Sun 18/10

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$ 672

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Tue 13/10

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

1 stop19h 00m

London Heathrow

Wed 31/12

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

Nonstop0h 00m

C$ 685

Saint JohnLondon

YSJ Saint John - LGW London Gatwick

YSJLGW

Saint John

Tue 13/10

6:55 a.m.-5:10 p.m.

3 stops30h 15m

London Gatwick

Wed 31/12

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

Nonstop0h 00m

C$ 710

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Sun 18/10

6:55 a.m.-9:05 a.m.

3 stops46h 10m

London Heathrow

Wed 31/12

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

Nonstop0h 00m

C$ 732

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Tue 13/10

6:55 a.m.-4:00 p.m.

3 stops29h 05m

London Heathrow

Wed 31/12

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

Nonstop0h 00m

C$ 809

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Fri 2/10

4:40 p.m.-9:25 p.m.

2 stops24h 45m

London Heathrow

Sat 10/10

12:15 p.m.-3:59 p.m.

2 stops31h 44m

C$ 1,145

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Sun 18/10

4:40 p.m.-9:35 p.m.

2 stops24h 55m

London Heathrow

Sun 25/10

4:20 p.m.-10:25 a.m.

2 stops45h 05m

C$ 1,145

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Wed 11/11

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

2 stops15h 15m

London Heathrow

Sun 15/11

1:35 p.m.-10:25 a.m.

2 stops48h 50m

C$ 1,146

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Wed 11/11

11:05 a.m.-5:55 a.m.

2 stops14h 50m

London Heathrow

Sat 14/11

12:50 p.m.-10:25 a.m.

2 stops25h 35m

C$ 1,146

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Mon 18/1

11:05 a.m.-9:10 a.m.

2 stops18h 05m

London Heathrow

Fri 22/1

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

2 stops44h 25m

C$ 1,153

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/9

Showing 1-10 of 13 resultsSorted by cheapest first
1
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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
11,579 reviews
Check prices

Entertainment

6.8

Boarding

7.3

Crew

7.8

Comfort

7.1

Overall

7.1

Food

6.3

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
11,579 reviews
Air Canada
7.1
Good
11,579 reviews
Check prices

Entertainment

6.8

Boarding

7.3

Crew

7.8

Comfort

7.1

Overall

7.1

Food

6.3

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 24h 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?

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Romford
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Bromley
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Watford
High Wycombe

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Top airline flying from St John to London

AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 1,278AverageC$ 1,446FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

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