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Cheap flights from Saint John to the United Kingdom from C$ 736

YSJ — LHR
21 Nov — 28 Nov1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from St John to United Kingdom

Enter your travel dates to find the best prices.

Cheapest flights from St John to United Kingdom

Mon 7/1211:05 a.m. -
1 stop16h 05m
Thu 28/19:00 a.m. -
2 stops29h 25m
Deal found 20/10C$ 1,117
Thu 3/1211:05 a.m. -
1 stop16h 05m
Thu 10/126:00 a.m. -
2 stops21h 58m
Deal found 19/10C$ 1,126
Mon 7/1211:05 a.m. -
1 stop16h 05m
Thu 28/11:00 p.m. -
1 stop25h 25m
Deal found 20/10C$ 1,140
Sun 15/1111:05 a.m. -
1 stop16h 05m
Sun 22/116:00 a.m. -
2 stops21h 38m
Deal found 18/10C$ 1,141
Mon 14/125:35 p.m. -
1 stop11h 10m
Thu 7/15:45 p.m. -
2 stops27h 34m
Deal found 21/10C$ 1,719
Thu 3/1211:05 a.m. -
2 stops22h 40m
Thu 10/126:00 p.m. -
3 stops20h 25m
Deal found 19/10C$ 1,748
Mon 14/125:20 a.m. -
1 stop23h 25m
Thu 7/111:30 a.m. -
1 stop16h 24m
Deal found 21/10C$ 1,753

Find flight deals from St John to United Kingdom

Round-trip from

C$ 1,117

One-way from

C$ 736
Air Canada
  • Air Canada
  • 7/12-28/1
  • 3 total stops
  • 45h 30m total
  • Saint John to United Kingdom
Search Deals
Air Canada
  • Air Canada
  • 16/11-31/12
  • 1 total stop
  • 13h 45m total
  • Saint John to United Kingdom
Search Deals

Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Saint John to the United Kingdom 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 16/11

5:35 p.m.-11:20 a.m.

1 stop13h 45m

London Heathrow

Wed 31/12

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

Nonstop0h 00m

C$ 736

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Fri 4/12

11:05 a.m.-12:50 p.m.

3 stops21h 45m

London Heathrow

Wed 31/12

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

Nonstop0h 00m

C$ 853

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Thu 3/12

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

1 stop18h 00m

London Heathrow

Wed 31/12

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

Nonstop0h 00m

C$ 970
Quickest round-trip

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Wed 28/10

5:15 a.m.-9:00 p.m.

2 stops12h 45m

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

Tue 27/10

6:00 p.m.-11:20 a.m.

1 stop14h 20m

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

Thu 3/12

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

1 stop16h 05m

London Heathrow

Thu 10/12

6:00 a.m.-11:58 p.m.

2 stops21h 58m

C$ 1,126

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Mon 18/1

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

1 stop16h 05m

London Heathrow

Fri 22/1

6:00 a.m.-11:54 p.m.

2 stops21h 54m

C$ 1,137

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Mon 7/12

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

1 stop16h 05m

London Heathrow

Thu 28/1

1:00 p.m.-10:25 a.m.

1 stop25h 25m

C$ 1,140

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Sun 15/11

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

1 stop16h 05m

London Heathrow

Sun 22/11

6:00 a.m.-11:38 p.m.

2 stops21h 38m

C$ 1,141

Saint JohnLondon

YSJ Saint John - LHR London Heathrow

YSJLHR

Saint John

Thu 21/1

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

1 stop16h 05m

London Heathrow

Sun 31/1

6:00 a.m.-11:54 p.m.

2 stops21h 54m

C$ 1,147

Flights are sorted by cheapest round-trip flights first.

Deals found on 17/10

Showing 1-10 of 16 resultsSorted by cheapest first
1
2

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

Have a flexible travel schedule? Discover the best time to fly to United Kingdom 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 the United Kingdom

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

Reviews of airlines servicing United Kingdom

Read reviews from past customers who have flown Air Canada from Saint John to the United Kingdom. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Canada
7.1
Good
11,793 reviews
Check prices

Entertainment

6.8

Boarding

7.3

Comfort

7.1

Overall

7.1

Food

6.3

Crew

7.8

Reviews

1 / 20
2.0
Mediocre

Hazel,Sep 2026

YYC - FRA

Air Canada cancelled our flight and rebooked us on Lufthansa, where we had to pay for checked luggage. We originally chose Air Canada because our Aeroplan credit card includes a free checked bag. It’s frustrating to face an extra charge because of a change we didn’t choose.
Air Canada
7.1
Good
11,793 reviews
Air Canada
7.1
Good
11,793 reviews
Check prices

Entertainment

6.8

Boarding

7.3

Comfort

7.1

Overall

7.1

Food

6.3

Crew

7.8

Reviews

1 / 20
2.0
Mediocre

Hazel,Sep 2026

YYC - FRA

Air Canada cancelled our flight and rebooked us on Lufthansa, where we had to pay for checked luggage. We originally chose Air Canada because our Aeroplan credit card includes a free checked bag. It’s frustrating to face an extra charge because of a change we didn’t choose.

Related info for your journey

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

    Located just 15.1 km from the city centre, Saint John (YSJ) is the airport most travellers will use when flying to United Kingdom from Saint John.

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

    For as low as C$ 1,126, Air Canada can have you in United Kingdom from Saint John in 16h 05m. The distance from Saint John to United Kingdom is about 4712 km.

  • What are the most popular routes from Saint John to United Kingdom?

    The most popular route from Saint John to United Kingdom is Saint John - London Heathrow. You may also consider Saint John - London Gatwick or Saint John - Glasgow Intl.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from St John to United Kingdom 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

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for St John to United Kingdom

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Moncton to Charles de Gaulle flights
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Fredericton to Heathrow flights
St John to Lisbon flights
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St John to Istanbul flights
Fredericton to Charles de Gaulle flights
Moncton to Orly flights
Fredericton to Frankfurt flights
Moncton to Dublin flights
Moncton to Leonardo da Vinci/Fiumicino flights
Fredericton to Gatwick flights
St John to Leonardo da Vinci/Fiumicino flights
Fredericton to Dublin flights
Fredericton to Lisbon flights
St John to Heathrow flights
St John to Charles de Gaulle flights
Moncton to Zurich flights
Moncton to Gatwick flights
St John to Dublin flights
Moncton to Barcelona-El Prat flights
Moncton to Amsterdam flights
Fredericton to Leonardo da Vinci/Fiumicino flights
Fredericton to Vienna flights
Fredericton to Munich flights
Fredericton to Porto flights
Fredericton to Geneva flights
Fredericton to Keflavik Intl flights
St John to Gatwick flights
St John to Athens flights
Fredericton to Madrid flights
St John to Madrid flights
St John to Vienna flights
St John to Zurich flights
Fredericton to Barcelona-El Prat flights
Moncton to Manchester flights
Moncton to Oslo Gardermoen flights
Fredericton to Valencia flights
Fredericton to Lviv flights
St John to Keflavik Intl flights
Moncton to Sandefjord flights
St John to Otopeni Intl flights
Fredericton to Belgrade flights
St John to Zagreb flights
St John to Glasgow Intl flights

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