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Cheap flights from London Heathrow Airport to Cairns from $840

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 5/3. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — CNS
14 Feb — 21 Feb1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Heathrow to Cairns

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Cairns (CNS). 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 January 2026.

Round-trip from

$1,593

One-way from

$814

Popular in

December

Cheapest in

May

Average price

$2,275
9/5-19/5
  • 9/5-19/5
  • 4 total stops
  • 75h 15m total
  • London to Cairns
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5/3
  • 5/3
  • 3 total stops
  • 45h 30m total
  • London to Cairns
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Highest demand for flights based on searches. 7% potential increase in price ($299 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease ($92 potential savings vs. average return price).
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Average for round-trip flights in January 2026
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Find flight deals from Heathrow to Cairns

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to Cairns
Explore the most affordable flight options available from Heathrow to Cairns. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 January 2026.

Mon 2/321:00
LHR
-
CNS
2 stops34h 15m
Multiple Airlines
Mon 9/306:40
CNS
-
LHR
2 stops44h 50m
Multiple Airlines
Deal found 15/1$1,566
Sat 28/221:00
LHR
-
CNS
2 stops34h 15m
Multiple Airlines
Sat 7/309:05
CNS
-
LHR
2 stops42h 25m
Multiple Airlines
Deal found 14/1$1,632
Sun 1/1121:00
LHR
-
CNS
2 stops34h 15m
Multiple Airlines
Mon 16/1106:40
CNS
-
LHR
2 stops44h 50m
Multiple Airlines
Deal found 15/1$1,641
Sun 12/422:10
LHR
-
CNS
2 stops33h 00m
Multiple Airlines
Sat 2/506:00
CNS
-
LHR
2 stops46h 00m
Multiple Airlines
Deal found 14/1$1,648
Sun 1/321:00
LHR
-
CNS
2 stops39h 05m
Multiple Airlines
Sun 8/309:05
CNS
-
LHR
2 stops42h 25m
Multiple Airlines
Deal found 15/1$1,726
Mon 13/421:20
LHR
-
CNS
2 stops38h 35m
Multiple Airlines
Mon 4/521:40
CNS
-
LHR
2 stops54h 00m
Multiple Airlines
Deal found 14/1$1,747
Sun 12/422:10
LHR
-
CNS
2 stops32h 45m
Multiple Airlines
Fri 1/512:10
CNS
-
LHR
2 stops39h 50m
Multiple Airlines
Deal found 14/1$1,774
Thu 5/321:00
LHR
-
CNS
2 stops34h 55m
Multiple Airlines
Sun 8/306:40
CNS
-
LHR
2 stops44h 50m
Multiple Airlines
Deal found 15/1$1,819

Cheapflights Fare Finder

 
Customise your flight search to find flights from Heathrow to Cairns 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 647,157 searches. Data last updated 15 January 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Cairns that are best for you.

Fly from

Heathrow

Fly to

Cairns

Route

Depart

Return

Price

LondonCairns

LHR - CNS

LHRCNS

London Heathrow

Mon 2/3

21:00-17:15

2 stops34h 15m

Cairns

Mon 9/3

06:40-17:30

2 stops44h 50m

$1,566

LondonCairns

LHR - CNS

LHRCNS

London Heathrow

Sun 12/4

22:10-15:55

2 stops32h 45m

Cairns

Fri 1/5

12:10-19:00

2 stops39h 50m

$1,786

LondonCairns

LHR - CNS

LHRCNS

London Heathrow

Thu 5/3

21:00-17:55

2 stops34h 55m

Cairns

Sun 8/3

06:40-17:30

2 stops44h 50m

$1,819

LondonCairns

LHR - CNS

LHRCNS

London Heathrow

Fri 13/3

20:10-22:05

2 stops39h 55m

Cairns

Tue 17/3

07:45-06:15

2 stops32h 30m

$2,046

LondonCairns

LHR - CNS

LHRCNS

London Heathrow

Wed 15/4

20:35-17:00

1 stop35h 25m

Cairns

Wed 13/5

18:15-19:30

1 stop34h 15m

$2,068

LondonCairns

LHR - CNS

LHRCNS

London Heathrow

Sun 12/4

20:35-17:00

1 stop59h 25m

Cairns

Fri 1/5

18:15-15:45

1 stop30h 30m

$2,124

LondonCairns

LHR - CNS

LHRCNS

London Heathrow

Sat 4/4

20:50-16:55

2 stops35h 05m

Cairns

Mon 20/4

16:40-06:35

2 stops46h 55m

$2,134

LondonCairns

LHR - CNS

LHRCNS

London Heathrow

Wed 4/3

21:00-05:45

3 stops46h 45m

$915

LondonCairns

LHR - CNS

LHRCNS

London Heathrow

Mon 2/3

22:00-10:15

2 stops50h 15m

$958

LondonCairns

LHR - CNS

LHRCNS

London Heathrow

Thu 5/3

22:00-08:20

2 stops48h 20m

$970

Flights are sorted by cheapest return flights first.

Deals found on 15/1

Showing 1-10 of 17 results
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Best time to book a flight from Heathrow to Cairns

Have a flexible travel schedule? Discover the best time to fly to Cairns from Heathrow 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 London Heathrow Airport to Cairns

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

Use this chart to determine the optimal time to book a return flight from Heathrow to Cairns. Price data was last updated on 9 January 2026.

The best time to book flights from London Heathrow Airport to Cairns is 28 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 London Heathrow Airport to Cairns?

Currently, June is the cheapest month in which you can book a flight from London Heathrow Airport to Cairns (average of $1,499). Flying from London Heathrow Airport to Cairns in July is currently the most expensive (average of $2,310). 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 Heathrow to Cairns. 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 into for flights to Cairns from London Heathrow?

    Cairns (CNS) is the airport you will fly into if you book a flight from London Heathrow to Cairns. You should not have trouble finding flights to Cairns from London Heathrow; the airport handles an average of 0 inbound flights from London Heathrow per day. You should also have plenty of airline options to choose from since 0 airlines have flights to the Cairns airport from London Heathrow. It is only a 4.4 km journey from Cairns (CNS) to Cairns’s city centre.

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

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

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

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

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

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

    Currently, June is the cheapest month in which you can book a flight from London Heathrow Airport to Cairns (average of $1,499). Flying from London Heathrow Airport to Cairns in July is currently the most expensive (average of $2,310). 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
Mission Beach
Trinity Beach

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

When you search for this flight from Heathrow to Cairns, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

Cheapflights simply makes it quick and affordable to book flights from Heathrow to Cairns by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Certainly. Search results for flights to Cairns from Heathrow shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Cairns from Heathrow today and book when prices fit your budget.

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