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Cheap flights from Cairns to London Heathrow Airport from £378

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/6. Fares are subject to change and may not be available on all flights or dates of travel.
CNS — LHR
20 Apr — 27 Apr1
1 adult

Cheapflights Tip: The best prices from Cairns to London Heathrow are usually found in October or February, booked 75 days in advance, depart on a Monday or Friday and return on a Wednesday

Cheap flight deals from Cairns to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Cairns (CNS) 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 15 April 2025.

Round-trip from

£841

One-way from

£378

Popular in

December

Cheapest in

October

Average price

£1,043
23/5-25/5
  • 23/5-25/5
  • 4 total stops
  • 86h 25m total
  • Cairns to London
7/6
  • 7/6
  • 2 total stops
  • 55h 15m total
  • Cairns to London
Highest demand for flights based on searches. 8% potential increase in price (£75 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease (£32 potential savings vs. average return price).
Average for round-trip flights in April 2025

Find flight deals from Cairns to Heathrow

Cheapest flights from Cairns to Heathrow
Explore the most affordable flight options available from Cairns to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 April 2025.

Fri 23/506:00CNS - LHR
2 stops45h 40mMultiple Airlines
Sun 25/521:20LHR - CNS
2 stops40h 45mMultiple Airlines
Deal found 14/4£841
Fri 23/518:15CNS - LHR
1 stop30h 30mSingapore Airlines
Sun 25/522:05LHR - CNS
1 stop57h 55mSingapore Airlines
Deal found 14/4£881
Sat 7/615:35CNS - LHR
2 stops36h 05mEmirates
Sun 8/622:15LHR - CNS
2 stops39h 35mEmirates
Deal found 13/4£1,042
Fri 28/1111:05CNS - LHR
2 stops29h 10mQantas Airways
Wed 24/1220:10LHR - CNS
2 stops29h 55mQantas Airways
Deal found 14/4£1,087
Fri 28/1117:35CNS - LHR
3 stops52h 15mAir Canada
Wed 24/1218:00LHR - CNS
3 stops58h 55mAir Canada
Deal found 14/4£1,696
Thu 26/609:00CNS - LHR
3 stops37h 50mKLM
Thu 17/714:45LHR - CNS
3 stops30h 15mKLM
Deal found 14/4£2,114
Sun 7/912:30CNS - LHR
2 stops35h 40mFinnair
Sat 27/909:30LHR - CNS
2 stops35h 05mFinnair
Deal found 14/4£3,796
Sun 7/913:40CNS - LHR
1 stop48h 45mBritish Airways
Sat 27/919:35LHR - CNS
2 stops32h 20mBritish Airways
Deal found 14/4£5,092
Fri 23/518:15CNS - LHR
3 stops31h 10mSWISS
Sun 25/520:05LHR - CNS
2 stops59h 55mSWISS
Deal found 15/4£5,327

Cheapflights Fare Finder

Customise your flight search to find flights from Cairns 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 858,174 searches. Data last updated 15 April 2025.
Use the filters below to find and compare flights from Cairns to London Heathrow Airport that are best for you.

Fly from

Cairns

Fly to

Heathrow

Route

Depart

Return

Price

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Fri 23/5

06:00-18:40

2 stops45h 40m

London Heathrow

Sun 25/5

21:20-23:05

2 stops40h 45m

£841

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Fri 23/5

18:15-15:45

1 stop30h 30m

London Heathrow

Sun 25/5

22:05-17:00

1 stop57h 55m

£881

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Sat 7/6

15:35-18:40

2 stops36h 05m

London Heathrow

Sun 8/6

22:15-22:50

2 stops39h 35m

£1,042

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Sun 25/5

09:20-06:35

2 stops30h 15m

London Heathrow

Sun 22/6

20:50-13:45

3 stops31h 55m

£1,115

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Thu 26/6

09:00-13:50

3 stops37h 50m

London Heathrow

Thu 17/7

14:45-06:00

3 stops30h 15m

£2,114

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Sun 7/9

12:30-15:10

2 stops35h 40m

London Heathrow

Sat 27/9

09:30-05:35

2 stops35h 05m

£3,796

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Sun 7/9

13:40-05:25

1 stop48h 45m

London Heathrow

Sat 27/9

19:35-12:55

2 stops32h 20m

£5,092

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Sun 7/9

18:15-16:35

3 stops31h 20m

London Heathrow

Sat 27/9

14:25-17:00

3 stops41h 35m

£5,704

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Sat 7/6

21:30-19:45

2 stops55h 15m

£378

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Mon 14/7

18:15-05:55

1 stop44h 40m

£549

Flights are sorted by cheapest return flights first.

Deals found on 13/4

Showing 1-10 of 12 results
1
2

Best time to book a flight from Cairns to Heathrow

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

Cheapflights Insights

Everything you need to know about your flight from Cairns to London Heathrow Airport

How far ahead should I book a flight from Cairns to London Heathrow Airport?

Use this chart to determine the optimal time to book a return flight from Cairns to Heathrow. Price data was last updated on 11 April 2025.

The best time to book flights from Cairns to London Heathrow Airport is 75 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, January is the cheapest month in which you can book a flight from Cairns to London Heathrow Airport (average of £112). Flying from Cairns to London Heathrow Airport in August is currently the most expensive (average of £164). 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.

What is the cheapest time of day to fly from CNS to LHR?

Find hourly flight availability from Cairns to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 15 April 2025.

It’s optimal to fly from Cairns to London Heathrow Airport at midday. By choosing this option you can save up to 36% on the cost of your flight, compared to a flight in the morning.

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 inches 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 15 April 2025.

Food

7.7

Entertainment

8.0

Comfort

7.9

Boarding

8.2

Crew

8.6

Overall

8.1

Reviews

1 / 20
6.0
Good

Gina,Dec 2024

BLR - SIN

Overall the experience was good. First flight of 17 hours had no entertainment since Singapore airline has technical issues. Was informed that passengers would get a $350 voucher for future flight. Uncertain how that is being distributed but would like to understand if an email is required from my end or if it is an automatic email sent to me by Singapore Airlines. -Gina Robles

Food

7.7

Entertainment

8.0

Comfort

7.9

Boarding

8.2

Crew

8.6

Overall

8.1

Reviews

1 / 20
6.0
Good

Gina,Dec 2024

BLR - SIN

Overall the experience was good. First flight of 17 hours had no entertainment since Singapore airline has technical issues. Was informed that passengers would get a $350 voucher for future flight. Uncertain how that is being distributed but would like to understand if an email is required from my end or if it is an automatic email sent to me by Singapore Airlines. -Gina Robles

Food

7.7

Entertainment

8.0

Comfort

7.9

Boarding

8.2

Crew

8.6

Overall

8.1

Reviews

1 / 20
6.0
Good

Gina,Dec 2024

BLR - SIN

Overall the experience was good. First flight of 17 hours had no entertainment since Singapore airline has technical issues. Was informed that passengers would get a $350 voucher for future flight. Uncertain how that is being distributed but would like to understand if an email is required from my end or if it is an automatic email sent to me by Singapore Airlines. -Gina Robles

Food

7.7

Entertainment

8.0

Comfort

7.9

Boarding

8.2

Crew

8.6

Overall

8.1

Reviews

1 / 20
6.0
Good

Gina,Dec 2024

BLR - SIN

Overall the experience was good. First flight of 17 hours had no entertainment since Singapore airline has technical issues. Was informed that passengers would get a $350 voucher for future flight. Uncertain how that is being distributed but would like to understand if an email is required from my end or if it is an automatic email sent to me by Singapore Airlines. -Gina Robles

Food

7.7

Entertainment

8.0

Comfort

7.9

Boarding

8.2

Crew

8.6

Overall

8.1

Reviews

1 / 20
6.0
Good

Gina,Dec 2024

BLR - SIN

Overall the experience was good. First flight of 17 hours had no entertainment since Singapore airline has technical issues. Was informed that passengers would get a $350 voucher for future flight. Uncertain how that is being distributed but would like to understand if an email is required from my end or if it is an automatic email sent to me by Singapore Airlines. -Gina Robles

Food

7.7

Entertainment

8.0

Comfort

7.9

Boarding

8.2

Crew

8.6

Overall

8.1

Reviews

1 / 20
6.0
Good

Gina,Dec 2024

BLR - SIN

Overall the experience was good. First flight of 17 hours had no entertainment since Singapore airline has technical issues. Was informed that passengers would get a $350 voucher for future flight. Uncertain how that is being distributed but would like to understand if an email is required from my end or if it is an automatic email sent to me by Singapore Airlines. -Gina Robles

Related info for your journey

Find useful and relevant information for your journey from Cairns 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 Cairns to London Heathrow?

    Cairns (CNS), located 2.8 mi from the city center, is the airport you fly out of when you book flights from Cairns to London Heathrow. 1 airline have flights from Cairns to London Heathrow on a regular basis. Booking flights from Cairns to London Heathrow should not be difficult; the airport handles an average of 0 outbound flights to London Heathrow per day.

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

    Flying on Singapore Airlines is currently your cheapest option to London Heathrow Airport, with prices starting at £881. Additional return tickets that might be worth considering are offered by Emirates and Qantas Airways, with the lowest prices starting at £1,042 and £1,115, respectively. Users have found that Singapore Airlines is 19% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Cairns to London Heathrow Airport one-way?

    The cheapet airlines for a one-way flight from Cairns to London Heathrow Airport are Singapore Airlines (£549), Air Canada (£1,114), and Qantas Airways (£1,637).

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

    Yes. In addition to deals on Cairns to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Cairns to Heathrow?

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

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

    Yes. Cheapflights offers flight deals from Cairns 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 Cairns to London Heathrow Airport?

    Currently, January is the cheapest month in which you can book a flight from Cairns to London Heathrow Airport (average of £112). Flying from Cairns to London Heathrow Airport in August is currently the most expensive (average of £164). 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 Cairns?

Book flights to Cairns if you plan to visit one of these locations
Hounslow
Deal
Milton Keynes
Luton
Gatwick
Croydon
Slough
Eastbourne
Northampton
Wembley
Crawley
Hayes
Swindon
Southend-on-Sea
Maidstone
Ilford
Winchester
Ipswich
Southall
Folkestone

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Top airline flying from Cairns to Heathrow

Discover the top airline that operate flights from Cairns 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 858,174 searches. Data last updated 15 April 2025.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest£1,036Average£1,595FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Cairns to Heathrow?

Deals for Cairns to Heathrow flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

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Cheapflights does show flights with no change fees to all users. To see these options for flights from Cairns to Heathrow, users can toggle the no change fees filter when performing a flight search.

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

Not ready to book yet? You can track prices for flights from Cairns to Heathrow on Cheapflights with our Price Alert feature and get notified when better prices are available.

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