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Cheap flights from Cairns to London Heathrow Airport from £489

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 9/5. Fares are subject to change and may not be available on all flights or dates of travel.
CNS — LHR
27 Apr — 4 May1
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 28 March 2026.

Tue 12/511:00
CNS
-
LHR
2 stops34h 45m
Multiple Airlines
Tue 19/509:30
LHR
-
CNS
2 stops28h 10m
Multiple Airlines
Deal found 28/3£925
Fri 1/512:35
CNS
-
LHR
2 stops27h 25m
Multiple Airlines
Sat 9/509:30
LHR
-
CNS
2 stops28h 10m
Multiple Airlines
Deal found 24/3£934
Thu 7/511:00
CNS
-
LHR
2 stops29h 00m
Multiple Airlines
Thu 14/509:30
LHR
-
CNS
2 stops28h 10m
Multiple Airlines
Deal found 23/3£962
Sat 9/511:00
CNS
-
LHR
2 stops29h 00m
Multiple Airlines
Sat 16/509:30
LHR
-
CNS
2 stops28h 10m
Multiple Airlines
Deal found 25/3£1,015
Wed 14/1018:15
CNS
-
LHR
1 stop34h 15m
Singapore Airlines
Thu 15/1022:05
LHR
-
CNS
1 stop57h 55m
Singapore Airlines
Deal found 27/3£1,062
Mon 11/515:45
CNS
-
LHR
2 stops29h 40m
Multiple Airlines
Mon 18/520:50
LHR
-
CNS
2 stops28h 45m
Multiple Airlines
Deal found 26/3£1,076
Mon 25/515:45
CNS
-
LHR
2 stops37h 30m
Emirates
Thu 28/522:15
LHR
-
CNS
2 stops31h 45m
Emirates
Deal found 27/3£1,136
Wed 14/1013:55
CNS
-
LHR
2 stops31h 30m
Emirates
Thu 15/1014:25
LHR
-
CNS
2 stops35h 25m
Emirates
Deal found 27/3£1,137
Wed 3/612:35
CNS
-
LHR
2 stops32h 50m
Emirates
Sun 7/619:50
LHR
-
CNS
2 stops34h 10m
Emirates
Deal found 23/3£1,144

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 28 March 2026.

Round-trip from

£934

One-way from

£489

Popular in

January

Cheapest in

February

Average price

£967
1/5-9/5
  • 1/5-9/5
  • 4 total stops
  • 55h 35m total
  • Cairns to London
Search Deals
9/5
  • 9/5
  • 3 total stops
  • 59h 05m total
  • Cairns to London
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (£49 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£30 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 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 28 March 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 11/5

15:45-12:25

2 stops29h 40m

London Heathrow

Mon 18/5

20:50-10:35

2 stops28h 45m

£1,076

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Mon 25/5

15:45-20:15

2 stops37h 30m

London Heathrow

Thu 28/5

19:50-15:00

2 stops34h 10m

£1,141

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Wed 3/6

12:35-12:25

2 stops32h 50m

London Heathrow

Sun 7/6

19:50-15:00

2 stops34h 10m

£1,144

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Sat 9/5

15:45-12:25

2 stops29h 40m

London Heathrow

Sat 16/5

20:50-15:00

3 stops33h 10m

£1,245

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Sat 9/5

15:45-12:25

2 stops29h 40m

London Heathrow

Sat 16/5

20:50-15:00

3 stops33h 10m

£1,287
Fastest return journey

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Mon 25/5

18:15-15:45

1 stop30h 30m

London Heathrow

Thu 28/5

11:20-17:00

1 stop20h 40m

£1,405

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Wed 3/6

18:15-15:45

1 stop30h 30m

London Heathrow

Sun 7/6

11:20-17:00

1 stop20h 40m

£1,424

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Wed 26/8

18:15-15:45

1 stop30h 30m

London Heathrow

Tue 13/10

09:25-17:00

1 stop22h 35m

£1,534
Cheapest one-way

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Tue 23/6

06:00-18:40

2 stops45h 40m

£541

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Sun 3/5

06:00-07:00

3 stops34h 00m

£555

Flights are sorted by cheapest return flights first.

Deals found on 23/3

Showing 1-10 of 13 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, February is the cheapest month in which you can book a flight from Cairns to London Heathrow Airport (average of £703). Flying from Cairns to London Heathrow Airport in January is currently the most expensive (average of £1,538). 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.

How much does it cost for a return flight from Cairns to London Heathrow Airport?

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 37h 30m. Fly via Emirates to get the fastest option. Cairns and London Heathrow Airport are separated by a distance of 9409 mi.

  • 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, February is the cheapest month in which you can book a flight from Cairns to London Heathrow Airport (average of £703). Flying from Cairns to London Heathrow Airport in January is currently the most expensive (average of £1,538). 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
Wembley
Croydon
Northampton
Hounslow
Luton
Gatwick
Slough
Ilford
Hayes
Brentford
Colchester
Eastbourne
Guildford
Watford
Kingston upon Thames
Romford
Ipswich
Swindon
Bedford

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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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