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Cheap flights from Saint John to London Heathrow Airport from C$ 1,199

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/5. Fares are subject to change and may not be available on all flights or dates of travel.
YSJ — LHR
22 ene. — 29 ene.1
1 adult

Cheap flight deals from St John to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from St John (YSJ) to Heathrow (LHR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 17 enero 2025.

Round-trip from

C$ 1,199

Popular in

July

Cheapest in

February

Average price

C$ 1,256
United Airlines
  • United Airlines
  • 2/5-30/5
  • 4 total stops
  • 32h 30m total
  • Saint John to London
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High demand for flights, 4% potential price rise
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Best time to find cheap flights, 1% potential price drop
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Average for round-trip flights in January 2025
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Find flight deals from St John to Heathrow

Cheapest flights from St John to Heathrow
Explore the most affordable flight options available from St John to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 enero 2025.

vie. 2/511:35 a.m.YSJ - LHR
2 stops14h 45mUnited Airlines
vie. 30/510:25 a.m.LHR - YSJ
2 stops17h 45mUnited Airlines
Deal found 16/1C$ 1,199
jue. 27/25:20 a.m.YSJ - LHR
1 stop21h 10mAir Canada
vie. 7/36:50 a.m.LHR - YSJ
2 stops12h 48mAir Canada
Deal found 16/1C$ 1,204
mar. 28/14:30 p.m.YSJ - LHR
2 stops13h 45mMultiple Airlines
lun. 24/210:30 a.m.LHR - YSJ
2 stops17h 56mMultiple Airlines
Deal found 15/1C$ 1,285

Find flights from St John to Heathrow within your budget

Customize your flight search to find flights from St John to Heathrow 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 17 enero 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

Saint JohnLondon

YSJ - LHR

YSJLHR

Saint John

vie. 2/5

11:35 a.m.-6:20 a.m.

2 stops14h 45m

London Heathrow

vie. 30/5

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

2 stops17h 45m

C$ 1,199

Saint JohnLondon

YSJ - LHR

YSJLHR

Saint John

jue. 27/2

5:20 a.m.-6:30 a.m.

1 stop21h 10m

London Heathrow

vie. 7/3

6:50 a.m.-3:38 p.m.

2 stops12h 48m

C$ 1,204

Saint JohnLondon

YSJ - LHR

YSJLHR

Saint John

mar. 28/1

4:30 p.m.-10:15 a.m.

2 stops13h 45m

London Heathrow

lun. 24/2

10:30 a.m.-12:26 a.m.

2 stops17h 56m

C$ 1,285

Flights are sorted by cheapest round-trip flights first.

Deals found on 16/1

Best time to book a flight from St John to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from St John 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.

Travel insights for flights from St John to Heathrow

Get recent, data-driven insights about flights from St John to Heathrow including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Saint John to London Heathrow Airport?

Currently, January is the cheapest month in which you can book a flight from Saint John to London Heathrow Airport (average of C$ 560). Flying from Saint John to London Heathrow Airport in July is currently the most expensive (average of C$ 874). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Rainfall in Heathrow by month

Plan your trip to Heathrow by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 mm per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

Temperature in Heathrow by month

Plan your trip to Heathrow by taking into account the average temperature totals by month.

If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Heathrow. Reviews last updated 17 enero 2025.
United Airlines
7.4
Good
8,965 reviews
Check prices

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Crew

8.1

Food

6.7

Overall

7.4

Reviews

1 / 10

It was a good experience. The flight took 45 minutes longer to fly and all passengers had to wait inside the plane till the technical issue was fixed. Overall it was a good experience.

United Airlines
7.4
Good
8,965 reviews
United Airlines
7.4
Good
8,965 reviews
Check prices

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Crew

8.1

Food

6.7

Overall

7.4

Reviews

1 / 10

It was a good experience. The flight took 45 minutes longer to fly and all passengers had to wait inside the plane till the technical issue was fixed. Overall it was a good experience.

Air Canada
7.0
Good
8,587 reviews
United Airlines
7.4
Good
8,965 reviews
Check prices

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Crew

8.1

Food

6.7

Overall

7.4

Reviews

1 / 10

It was a good experience. The flight took 45 minutes longer to fly and all passengers had to wait inside the plane till the technical issue was fixed. Overall it was a good experience.

Related info for your journey

Find useful and relevant information for your journey from St John to Heathrow. 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 from for flights from Saint John to London Heathrow?

    Located just 15.1 km from the city centre, Saint John is the airport most travellers will use when flying to London Heathrow from Saint John. Booking flights from Saint John (YSJ) to London Heathrow should be relatively easy as there are 0 daily outbound flights to London Heathrow from 1 airline.

  • What are the cheapest airlines flying from Saint John to London Heathrow Airport round-trip?

    According to our current data, United Airlines (C$ 1,199), and Air Canada (C$ 1,204) offers the cheapest pricing from Saint John to London Heathrow Airport. Users have found that United Airlines is 8% cheaper than the other options available to this destination.

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

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

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

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

    Yes. Cheapflights offers flight deals from St John 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.

  • What is the cheapest month to book a flight from Saint John to London Heathrow Airport?

    Currently, January is the cheapest month in which you can book a flight from Saint John to London Heathrow Airport (average of C$ 560). Flying from Saint John to London Heathrow Airport in July is currently the most expensive (average of C$ 874). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Saint John?

Book flights to Saint John if you plan to visit one of these locations
Brentford
Hounslow
Slough
Luton
Milton Keynes
Romford
Watford
Bedford
Bromley
Southall

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Top airline flying from St John to Heathrow

Discover the top airline that operate flights from St John to Heathrow. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 17 enero 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 1,178AverageC$ 1,304FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

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How does Cheapflights help users find flights from St John to Heathrow?

Cheapflights makes it easy to find St John to Heathrow flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Heathrow from St John.

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from St John to Heathrow flexibly with Cheapflights today.

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

Yes! Start tracking prices for St John to Heathrow 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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