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Cheap flights from St. John's to London Heathrow Airport from £294

YYT — LHR
24 Oct — 31 Oct1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from St. John's to Heathrow

Enter your travel dates to find the best prices.

Cheapest flights from St. John's to Heathrow

Sun 1/1105:15 -
2 stops45h 55m
Sat 7/1107:40 -
2 stops21h 40m
Deal found 23/9£605
Sun 27/905:35 -
2 stops20h 50m
Fri 2/1007:45 -
2 stops20h 18m
Deal found 23/9£606
Sun 27/905:35 -
2 stops20h 50m
Wed 30/912:00 -
2 stops32h 38m
Deal found 22/9£608
Tue 6/1005:00 -
2 stops22h 15m
Fri 16/1016:40 -
2 stops35h 23m
Deal found 24/9£608
Sat 3/1013:15 -
2 stops28h 35m
Wed 7/1012:00 -
2 stops17h 16m
Deal found 22/9£610
Mon 19/1000:30 -
1 stop16h 20m
Fri 30/1018:00 -
1 stop22h 00m
Deal found 21/9£611
Tue 17/1106:00 -
2 stops20h 50m
Fri 20/1108:00 -
2 stops21h 11m
Deal found 19/9£615
Thu 5/1118:15 -
2 stops32h 35m
Thu 12/1118:00 -
2 stops26h 55m
Deal found 21/9£617
Fri 2/1013:20 -
2 stops28h 10m
Fri 9/1008:30 -
1 stop14h 35m
Deal found 23/9£648

Find flight deals from St. John's to Heathrow

Round-trip from

£605

One-way from

£294

Popular in

November

Cheapest in

April

Average price

£708
United Airlines
  • United Airlines
  • 1/11-7/11
  • 4 total stops
  • 67h 35m total
  • St. John's to London
Search Deals
17/10-31/12
  • 17/10-31/12
  • 2 total stops
  • 36h 20m total
  • St. John's to London
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (£124 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£27 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2026
Search Deals

Cheapflights Fare Finder

 
Use the filters below to find and compare flights from St. John's to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

St. John'sLondon

YYT St John's - LHR London Heathrow

YYTLHR

St John's

Sat 17/10

20:55-12:45

2 stops36h 20m

London Heathrow

Wed 31/12

00:00-19:30

Nonstop0h 00m

£294
Fastest return journey

St. John'sLondon

YYT St John's - LHR London Heathrow

YYTLHR

St John's

Wed 4/11

14:25-08:30

1 stop14h 35m

London Heathrow

Wed 31/12

00:00-19:30

Nonstop0h 00m

£315

St. John'sLondon

YYT St John's - LHR London Heathrow

YYTLHR

St John's

Sun 8/11

14:25-08:30

1 stop14h 35m

London Heathrow

Wed 31/12

00:00-19:30

Nonstop0h 00m

£350

St. John'sLondon

YYT St John's - LHR London Heathrow

YYTLHR

St John's

Mon 5/10

13:20-10:20

2 stops17h 30m

London Heathrow

Wed 31/12

00:00-19:30

Nonstop0h 00m

£353

St. John'sLondon

YYT St John's - LHR London Heathrow

YYTLHR

St John's

Sat 7/11

15:15-06:30

2 stops35h 45m

London Heathrow

Wed 31/12

00:00-19:30

Nonstop0h 00m

£367

St. John'sLondon

YYT St John's - LHR London Heathrow

YYTLHR

St John's

Thu 5/11

14:25-08:30

1 stop14h 35m

London Heathrow

Wed 31/12

00:00-19:30

Nonstop0h 00m

£379

St. John'sLondon

YYT St John's - LHR London Heathrow

YYTLHR

St John's

Sat 10/10

18:05-16:00

3 stops18h 25m

London Heathrow

Wed 31/12

00:00-19:30

Nonstop0h 00m

£379

St. John'sLondon

YYT St John's - LHR London Heathrow

YYTLHR

St John's

Sat 17/10

15:00-12:05

2 stops41h 35m

London Heathrow

Wed 31/12

00:00-19:30

Nonstop0h 00m

£398

St. John'sLondon

YYT St John's - LHR London Heathrow

YYTLHR

St John's

Sun 1/11

05:15-06:40

2 stops45h 55m

London Heathrow

Sat 7/11

07:40-01:50

2 stops21h 40m

£605

St. John'sLondon

YYT St John's - LHR London Heathrow

YYTLHR

St John's

Thu 5/11

18:15-08:25

2 stops34h 40m

London Heathrow

Thu 12/11

07:40-01:50

2 stops21h 40m

£608

Flights are sorted by cheapest return flights first.

Deals found on 22/9

Showing 1-10 of 17 resultsSorted by cheapest first
1
2

Best time to book a flight from St. John's to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from St. John's with our price prediction graph.
Estimated return price

Cheapflights Insights

Everything you need to know about your flight from St. John's to London Heathrow Airport

How much does it cost for a return flight from St. John's to London Heathrow Airport?

Airfare is below average for this route at the moment.

St. John's to London Heathrow Airport flights typically cost between £698 and £807 in November.
The cheapest return price found within the last 5 days was £605 on United Airlines (1 Nov–7 Nov).

Reviews of airlines servicing Heathrow

Read reviews from past customers who have flown with Air Canada from St. John's to London Heathrow Airport. 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
11,676 reviews
Check prices

Boarding

7.3

Entertainment

6.8

Crew

7.8

Overall

7.1

Comfort

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
11,676 reviews
Air Canada
7.1
Good
11,676 reviews
Check prices

Boarding

7.3

Entertainment

6.8

Crew

7.8

Overall

7.1

Comfort

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 St. John's to London Heathrow?

    For a flight from St. John's to London Heathrow, you will be flying from St John's. St John's (YYT) is just 4.2 mi from the center of the city. St John's is the only St. John's airport and it handles 0 outbound flights to London Heathrow per day. 1 airline has flights to London Heathrow from St John's on a regular basis.

  • How long is the flight from St. John's to London Heathrow Airport?

    Airlines like United Airlines fly from St. John's to London Heathrow Airport in about 45h 55m. The time it takes to get you to your destination can typically vary by up to . Airlines will cover a distance of 2307 mi.

  • What is the cheapest airline to fly from St. John's to London Heathrow Airport round-trip?

    Currently priced at £686, Air Canada will fly you from St. John's to London Heathrow Airport and back. In addition to Air Canada, many other airlines offer competitively priced options for your trip. This flight start at 13% lower than the current average price 3 months from now.

  • Can I find deals for flights from St. John's to Heathrow that include hotel bookings?

    Yes. In addition to deals on St. John's to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from St. John's to Heathrow?

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

  • Can I find deals for business class flights from St. John's to Heathrow?

    Yes. Cheapflights offers flight deals from St. John's to Heathrow 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 Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Hounslow
Luton
Milton Keynes
Gatwick
Wembley
Slough
Ilford
Hayes
Croydon
Northampton
Colchester
Eastbourne
Enfield
Brentford
Southend-on-Sea
Barnet
Southall
Watford
Stratford-upon-Avon
Kingston upon Thames

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for St. John's to Heathrow

St. John's to Gatwick flights

Top airline flying from St. John's to Heathrow

AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest£686Average£892FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

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