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Cheap flights from Cairns to London Heathrow Airport from £348

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 11/3. Fares are subject to change and may not be available on all flights or dates of travel.
CNS — LHR
25 Dec — 1 Jan1
1 adult
1 adult, Economy, 0 bags

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 25 November 2025.

Round-trip from

£769

One-way from

£348

Popular in

June

Cheapest in

February

Average price

£1,147
Singapore Airlines
  • Singapore Airlines
  • 22/4-3/5
  • 2 total stops
  • 88h 25m total
  • Cairns to London
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Singapore Airlines
  • Singapore Airlines
  • 11/3
  • 1 total stop
  • 34h 35m total
  • Cairns to London
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (£74 potential increase over avg. return price).
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Cheapest flight prices on average. 4% potential price decrease (£37 potential savings vs. average return price).
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Average for round-trip flights in November 2025
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Find 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 25 November 2025.

Thu 27/1109:45CNS - LHR
3 stops55h 30mMultiple Airlines
Thu 11/1211:00LHR - CNS
2 stops32h 45mMultiple Airlines
Deal found 23/11£1,242
Thu 27/1109:45CNS - LHR
2 stops30h 30mQantas Airways
Thu 11/1220:20LHR - CNS
2 stops28h 25mQantas Airways
Deal found 22/11£1,354
Tue 23/1211:25CNS - LHR
2 stops39h 25mMultiple Airlines
Tue 30/1221:00LHR - CNS
2 stops34h 15mMultiple Airlines
Deal found 22/11£1,442
Tue 23/1211:25CNS - LHR
1 stop37h 35mCathay Pacific
Tue 30/1220:15LHR - CNS
1 stop27h 40mCathay Pacific
Deal found 22/11£1,467
Sun 21/1206:40CNS - LHR
2 stops44h 50mMultiple Airlines
Wed 31/1221:00LHR - CNS
2 stops35h 45mMultiple Airlines
Deal found 22/11£1,709

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 25 November 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

18:35-15:20

1 stop30h 45m

London Heathrow

Sat 28/2

20:35-17:20

1 stop34h 45m

£891

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Wed 4/3

18:35-19:10

1 stop34h 35m

London Heathrow

Sun 8/3

10:40-17:20

1 stop20h 40m

£904

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Fri 23/1

18:35-08:45

2 stops24h 10m

London Heathrow

Sat 24/1

19:30-09:55

2 stops52h 25m

£914

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Sat 14/3

19:15-09:55

2 stops48h 40m

London Heathrow

Sat 28/3

22:35-05:30

2 stops44h 55m

£918

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Fri 23/1

18:35-13:40

3 stops29h 05m

London Heathrow

Sat 24/1

20:05-09:55

2 stops51h 50m

£1,016

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Wed 4/3

18:35-11:15

2 stops26h 40m

London Heathrow

Sun 8/3

20:05-17:20

2 stops59h 15m

£1,078

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Sun 15/3

18:35-15:20

1 stop30h 45m

£367

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Sun 15/2

18:35-19:10

1 stop34h 35m

£368

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Wed 11/3

16:00-18:35

3 stops36h 35m

£424

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Sun 15/2

12:35-17:20

2 stops62h 45m

£426

Flights are sorted by cheapest return flights first.

Deals found on 24/11

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

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 £714). Flying from Cairns to London Heathrow Airport in December is currently the most expensive (average of £1,153). 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?

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 25 November 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
1,409 reviews
Check prices

Crew

8.6

Overall

8.1

Entertainment

8.0

Boarding

8.3

Comfort

8.0

Food

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

BCN - SIN

Staff at Barcelona were fantastic, they helped me change a flight and nothing was any problem. Thank you Dina.
Singapore Airlines
8.1
Very Good
1,409 reviews
Singapore Airlines
8.1
Very Good
1,409 reviews
Check prices

Crew

8.6

Overall

8.1

Entertainment

8.0

Boarding

8.3

Comfort

8.0

Food

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

BCN - SIN

Staff at Barcelona were fantastic, they helped me change a flight and nothing was any problem. Thank you Dina.

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.

  • 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 30h 45m. Fly via Singapore Airlines to get the fastest option. Cairns and London Heathrow Airport are separated by a distance of 9409 mi.

  • 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 £917. Users have found that Singapore Airlines is 16% 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, February is the cheapest month in which you can book a flight from Cairns to London Heathrow Airport (average of £714). Flying from Cairns to London Heathrow Airport in December is currently the most expensive (average of £1,153). 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
Slough
Gatwick
Hounslow
Northampton
Luton
Ilford
Wembley
Deal
Hayes
Colchester
Watford
Winchester
Swindon
Crawley
Brentford
Romford
Chichester
Ipswich

Browse thousands of different options on Cheapflights for your next trip

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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 25 November 2025.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest£917Average£1,671FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights

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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