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Cheap flights from Cairns to London Heathrow Airport from $938

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 18/11. Fares are subject to change and may not be available on all flights or dates of travel.
CNS — LHR
2 Sep — 9 Sep1
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 Sunday or Friday and return on a Monday

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 28 August 2025.

Round-trip from

$1,744

One-way from

$938

Popular in

December

Cheapest in

October

Average price

$2,386
Singapore Airlines
  • Singapore Airlines
  • 14/1-28/2
  • 2 total stops
  • 64h 20m total
  • Cairns to London
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18/11
  • 18/11
  • 3 total stops
  • 52h 20m total
  • Cairns to London
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($523 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($124 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 28 August 2025.

Wed 22/1006:00CNS - LHR
2 stops45h 40mMultiple Airlines
Wed 5/1121:00LHR - CNS
2 stops34h 15mMultiple Airlines
Deal found 27/8$1,762
Fri 10/1015:35CNS - LHR
2 stops60h 05mMultiple Airlines
Thu 23/1021:20LHR - CNS
2 stops40h 30mMultiple Airlines
Deal found 26/8$1,846
Thu 9/1015:35CNS - LHR
2 stops60h 05mMultiple Airlines
Thu 30/1021:00LHR - CNS
2 stops34h 15mMultiple Airlines
Deal found 26/8$1,849
Wed 22/1018:15CNS - LHR
1 stop30h 30mMultiple Airlines
Thu 6/1121:00LHR - CNS
2 stops45h 35mMultiple Airlines
Deal found 27/8$1,994
Wed 22/1018:15CNS - LHR
1 stop30h 30mMultiple Airlines
Tue 4/1121:00LHR - CNS
2 stops45h 35mMultiple Airlines
Deal found 27/8$2,018
Wed 22/1018:15CNS - LHR
1 stop30h 30mSingapore Airlines
Wed 5/1121:45LHR - CNS
1 stop33h 35mSingapore Airlines
Deal found 27/8$2,040
Wed 22/1018:15CNS - LHR
1 stop30h 30mMultiple Airlines
Mon 3/1121:00LHR - CNS
2 stops40h 55mMultiple Airlines
Deal found 27/8$2,058
Wed 22/1018:15CNS - LHR
1 stop30h 30mMultiple Airlines
Fri 7/1121:00LHR - CNS
2 stops45h 35mMultiple Airlines
Deal found 27/8$2,060
Tue 21/1017:25CNS - LHR
2 stops29h 40mQatar Airways
Sun 2/1108:05LHR - CNS
2 stops29h 00mQatar Airways
Deal found 27/8$2,098
Tue 21/1017:25CNS - LHR
2 stops28h 50mQatar Airways
Mon 3/1119:20LHR - CNS
2 stops41h 45mQatar Airways
Deal found 27/8$2,103
Tue 21/1017:25CNS - LHR
2 stops28h 50mQatar Airways
Thu 6/1114:15LHR - CNS
2 stops32h 20mQatar Airways
Deal found 27/8$2,106

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 647,157 searches. Data last updated 28 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

18:35-15:20

1 stop30h 45m

London Heathrow

Sat 28/2

21:45-17:20

1 stop33h 35m

$1,744

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Wed 22/10

06:00-18:40

2 stops45h 40m

London Heathrow

Wed 5/11

21:00-17:15

2 stops34h 15m

$1,762

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Fri 10/10

15:35-18:40

2 stops60h 05m

London Heathrow

Thu 23/10

21:20-22:50

2 stops40h 30m

$1,769

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Thu 9/10

15:35-18:40

2 stops60h 05m

London Heathrow

Thu 30/10

21:00-17:15

2 stops34h 15m

$1,849

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Thu 9/10

15:35-18:40

2 stops60h 05m

London Heathrow

Thu 16/10

21:20-22:50

2 stops40h 30m

$1,932

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Wed 22/10

18:15-15:45

1 stop30h 30m

London Heathrow

Thu 6/11

21:00-04:35

2 stops45h 35m

$1,994

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Wed 22/10

18:15-15:45

1 stop30h 30m

London Heathrow

Tue 4/11

21:00-04:35

2 stops45h 35m

$2,018

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Wed 22/10

18:15-15:45

1 stop30h 30m

London Heathrow

Wed 5/11

21:45-17:20

1 stop33h 35m

$2,040

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Tue 18/11

23:55-18:15

3 stops52h 20m

$938

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Mon 17/11

23:55-21:05

3 stops55h 10m

$952

Flights are sorted by cheapest return flights first.

Deals found on 26/8

Showing 1-10 of 16 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 22 August 2025.

To ensure you get the cheapest price possible for a flight from Cairns to London Heathrow Airport, you should look to book at least 75 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, October is the cheapest month in which you can book a flight from Cairns to London Heathrow Airport (average of $1,037). Flying from Cairns to London Heathrow Airport in December is currently the most expensive (average of $1,667). 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 28 August 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 19% on flights from Cairns to London Heathrow Airport by exploring options for tickets in the afternoon.

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 28 August 2025.
See what other customers who have flown with Singapore Airlines and Qantas Airways from Cairns to London Heathrow Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Singapore Airlines
8.1
Very Good
1,352 reviews
Check prices

Boarding

8.2

Overall

8.1

Comfort

7.9

Crew

8.6

Food

7.7

Entertainment

8.0

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
1,352 reviews
Singapore Airlines
8.1
Very Good
1,352 reviews
Check prices

Boarding

8.2

Overall

8.1

Comfort

7.9

Crew

8.6

Food

7.7

Entertainment

8.0

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
Qantas Airways
7.5
Good
905 reviews
Singapore Airlines
8.1
Very Good
1,352 reviews
Check prices

Boarding

8.2

Overall

8.1

Comfort

7.9

Crew

8.6

Food

7.7

Entertainment

8.0

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?

    Located just 4.4 km from the city centre, Cairns is the airport most travellers will use when flying to London Heathrow from Cairns. Booking flights from Cairns (CNS) to London Heathrow should be relatively easy as there are 0 daily outbound flights to London Heathrow from 2 different airlines.

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

    Airlines like Singapore Airlines fly from Cairns to London Heathrow Airport in about 30h 45m. The time it takes to get you to your destination can typically vary by up to . Airlines will cover a distance of 15142 km.

  • What are the cheapest airlines flying from Cairns to London Heathrow Airport round-trip?

    Cheapflights users have booked flights from Cairns to London Heathrow Airport round-trip from $1,436. Another airline that can offer you cheap pricing is Qantas Airways. Singapore Airlines is priced at 34% lower than the current average price of a flight leaving 3 months from now.

  • 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, October is the cheapest month in which you can book a flight from Cairns to London Heathrow Airport (average of $1,037). Flying from Cairns to London Heathrow Airport in December is currently the most expensive (average of $1,667). 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
Salisbury
Horsham
Southall
Chatham
Dover
Dorking
Chertsey

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from Cairns to Heathrow

Discover the top 2 airlines 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 647,157 searches. Data last updated 28 August 2025.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest$1,436Average$1,926FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
Qantas AirwaysCheapest$2,074Average$2,529FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights

Fly with Cheapflights

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

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Cairns to Heathrow.

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

Certainly. Search results for flights to Heathrow from Cairns 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 Cairns to Heathrow become cheaper?

Of course! You can now track prices for flights from Cairns to Heathrow and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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