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Cheap flights from Cairns to London Heathrow Airport from £381

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 15/10. Fares are subject to change and may not be available on all flights or dates of travel.
CNS — LHR
20 Aug — 27 Aug1
1 adult

Cheapflights Tip: The best prices from Cairns to London Heathrow are usually found in October or February, booked 78 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 August 2025.

Round-trip from

£837

One-way from

£381

Popular in

December

Cheapest in

October

Average price

£1,142
Singapore Airlines
  • Singapore Airlines
  • 14/1-28/2
  • 2 total stops
  • 68h 10m total
  • Cairns to London
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15/10
  • 15/10
  • 2 total stops
  • 55h 30m total
  • Cairns to London
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£120 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£28 potential savings vs. average return price).
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Average for round-trip flights in August 2025
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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 August 2025.

Wed 10/916:10CNS - LHR
2 stops59h 30mMultiple Airlines
Mon 15/921:20LHR - CNS
2 stops36h 40mMultiple Airlines
Deal found 14/8£970
Mon 8/919:00CNS - LHR
2 stops57h 00mMultiple Airlines
Fri 19/921:20LHR - CNS
2 stops38h 35mMultiple Airlines
Deal found 12/8£1,042
Mon 15/916:35CNS - LHR
2 stops32h 55mMultiple Airlines
Wed 15/1021:10LHR - CNS
2 stops34h 30mMultiple Airlines
Deal found 13/8£1,122
Fri 26/909:55CNS - LHR
2 stops29h 40mMultiple Airlines
Sun 19/1022:15LHR - CNS
2 stops28h 00mMultiple Airlines
Deal found 14/8£1,131
Fri 26/918:40CNS - LHR
2 stops33h 00mEmirates
Mon 20/1019:50LHR - CNS
2 stops38h 10mEmirates
Deal found 14/8£1,151
Fri 19/916:10CNS - LHR
2 stops29h 15mMultiple Airlines
Sun 12/1019:50LHR - CNS
2 stops30h 25mMultiple Airlines
Deal found 12/8£1,159
Wed 10/906:00CNS - LHR
3 stops33h 35mQantas Airways
Mon 15/920:50LHR - CNS
2 stops31h 05mQantas Airways
Deal found 12/8£1,211

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 August 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

Wed 14/1

18:35-19:10

1 stop34h 35m

London Heathrow

Sat 28/2

21:45-17:20

1 stop33h 35m

£837

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Sun 11/1

18:35-15:20

1 stop54h 45m

London Heathrow

Mon 26/1

20:35-17:20

1 stop34h 45m

£937

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Wed 10/9

16:10-18:40

2 stops59h 30m

London Heathrow

Mon 15/9

21:20-19:00

2 stops36h 40m

£970

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Wed 14/1

17:20-14:00

2 stops30h 40m

London Heathrow

Sat 28/2

08:05-23:05

2 stops29h 00m

£998

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Wed 14/1

18:35-13:00

2 stops28h 25m

London Heathrow

Sat 28/2

12:05-17:20

2 stops43h 15m

£1,010

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Mon 8/9

19:00-19:00

2 stops57h 00m

London Heathrow

Fri 19/9

21:20-20:55

2 stops38h 35m

£1,042

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Sun 11/1

23:55-06:15

2 stops40h 20m

London Heathrow

Mon 26/1

08:05-11:00

2 stops40h 55m

£1,091

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Wed 15/10

20:30-19:00

2 stops55h 30m

£381

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Wed 15/10

18:15-15:45

1 stop30h 30m

£399

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Sat 15/11

19:15-15:25

3 stops54h 10m

£412

Flights are sorted by cheapest return flights first.

Deals found on 13/8

Showing 1-10 of 14 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 8 August 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 August 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.

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 August 2025.
Check out reviews from past customers who have flown with Singapore Airlines from Cairns to London Heathrow Airport 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.
Singapore Airlines
8.1
Very Good
1,346 reviews
Check prices

Overall

8.1

Entertainment

8.0

Crew

8.6

Comfort

8.0

Boarding

8.2

Food

7.7

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
Singapore Airlines
8.1
Very Good
1,346 reviews
Singapore Airlines
8.1
Very Good
1,346 reviews
Check prices

Overall

8.1

Entertainment

8.0

Crew

8.6

Comfort

8.0

Boarding

8.2

Food

7.7

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 is the cheapest airline to fly 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 £953. Users have found that Singapore Airlines is 9% cheaper than the other options available to this destination.

  • 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 London Heathrow Airport?

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

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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 August 2025.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest£953Average£1,341FlexibilityNo cancel feeOn-time81%
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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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?

Cheapflights helps you find that perfect flight to Heathrow from Cairns by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

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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