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Cheap flights from Cairns to London Heathrow Airport from £453

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 20/7. Fares are subject to change and may not be available on all flights or dates of travel.
CNS — LHR
11 Aug — 18 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Cairns to Heathrow

Enter your travel dates to find the best prices.

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 12 July 2026.

Mon 26/1018:20
CNS
-
LHR
1 stop34h 50m
Singapore Airlines
Mon 9/1121:45
LHR
-
CNS
1 stop33h 35m
Singapore Airlines
Deal found 9/7£876
Mon 26/1018:20
CNS
-
LHR
1 stop31h 00m
Multiple Airlines
Mon 9/1121:00
LHR
-
CNS
2 stops39h 10m
Multiple Airlines
Deal found 9/7£892
Thu 6/821:05
CNS
-
LHR
2 stops54h 35m
Multiple Airlines
Wed 19/821:20
LHR
-
CNS
2 stops52h 55m
Multiple Airlines
Deal found 9/7£945
Tue 4/806:45
CNS
-
LHR
2 stops33h 15m
Multiple Airlines
Thu 27/821:20
LHR
-
CNS
2 stops38h 40m
Multiple Airlines
Deal found 11/7£983
Mon 7/918:15
CNS
-
LHR
1 stop34h 15m
Singapore Airlines
Sun 20/920:35
LHR
-
CNS
1 stop35h 25m
Singapore Airlines
Deal found 11/7£1,015
Sun 26/706:45
CNS
-
LHR
2 stops44h 55m
Multiple Airlines
Mon 17/821:20
LHR
-
CNS
2 stops36h 05m
Multiple Airlines
Deal found 12/7£1,024
Tue 4/818:15
CNS
-
LHR
1 stop34h 15m
Singapore Airlines
Thu 27/811:20
LHR
-
CNS
1 stop20h 40m
Singapore Airlines
Deal found 11/7£1,092
Tue 25/819:10
CNS
-
LHR
2 stops56h 30m
Multiple Airlines
Tue 1/921:20
LHR
-
CNS
2 stops38h 40m
Multiple Airlines
Deal found 10/7£1,096

Find 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 12 July 2026.

Round-trip from

£876

One-way from

£453

Popular in

July

Cheapest in

May

Average price

£1,571
Singapore Airlines
  • Singapore Airlines
  • 26/10-9/11
  • 2 total stops
  • 68h 25m total
  • Cairns to London
Search Deals
20/7
  • 20/7
  • 3 total stops
  • 59h 10m total
  • Cairns to London
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£111 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£26 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

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 12 July 2026.
Use the filters below to find and compare flights from Cairns to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Mon 10/8

06:00-18:40

2 stops45h 40m

London Heathrow

Thu 27/8

21:20-21:00

2 stops38h 40m

£931

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Tue 17/11

17:40-06:15

2 stops46h 35m

London Heathrow

Sat 21/11

20:10-10:45

2 stops28h 35m

£1,185

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Mon 10/8

06:00-18:40

2 stops45h 40m

London Heathrow

Thu 27/8

22:15-19:30

2 stops36h 15m

£1,222

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Tue 8/9

13:40-14:25

2 stops33h 45m

London Heathrow

Sat 19/9

22:15-19:30

2 stops36h 15m

£1,223

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Wed 28/10

06:00-06:15

3 stops34h 15m

London Heathrow

Fri 20/11

20:10-14:10

3 stops32h 00m

£1,225
Fastest return journey

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Mon 26/10

18:20-15:20

1 stop31h 00m

London Heathrow

Thu 19/11

10:40-17:20

1 stop20h 40m

£1,341

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Thu 10/9

06:50-06:35

2 stops32h 45m

London Heathrow

Fri 2/10

20:40-11:55

2 stops30h 15m

£1,344

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Tue 8/9

18:15-15:45

1 stop30h 30m

London Heathrow

Sat 19/9

22:05-17:00

1 stop33h 55m

£1,344

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Mon 7/9

18:15-19:30

1 stop34h 15m

London Heathrow

Mon 21/9

11:20-17:00

1 stop20h 40m

£1,344

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Mon 26/10

18:20-15:20

1 stop31h 00m

London Heathrow

Wed 18/11

21:45-17:20

1 stop33h 35m

£1,409

Flights are sorted by cheapest return flights first.

Deals found on 7/7

Showing 1-10 of 16 resultsSorted by cheapest first
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

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

Currently, May is the cheapest month in which you can book a flight from Cairns to London Heathrow Airport (average of £847). Flying from Cairns to London Heathrow Airport in July is currently the most expensive (average of £1,571). 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.

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. 0 airlines 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.

  • How long is the flight from Cairns to London Heathrow Airport?

    There are many flights that can get you from Cairns to London Heathrow Airport in 45h 40m. Fly via Qantas Airways or Emirates to get the fastest option. Cairns and London Heathrow Airport are separated by a distance of 9409 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • 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, May is the cheapest month in which you can book a flight from Cairns to London Heathrow Airport (average of £847). Flying from Cairns to London Heathrow Airport in July is currently the most expensive (average of £1,571). 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
Hounslow
Milton Keynes
Luton
Wembley
Gatwick
Slough
Croydon
Ilford
Hayes
Brentford
Colchester
Northampton
Watford
Kingston upon Thames
Eastbourne
Swindon
Poole
Southall
Aylesbury
Romford

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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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