Find flights
When to book
Airlines
FAQs

Cheap flights from Cairns to London Heathrow Airport from $492

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 5/2. Fares are subject to change and may not be available on all flights or dates of travel.
CNS — LHR
6 Feb — 13 Feb1
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 7 January 2026.

Round-trip from

$1,632

One-way from

$492

Popular in

June

Cheapest in

February

Average price

$3,041
2/2-6/2
  • 2/2-6/2
  • 4 total stops
  • 97h 50m total
  • Cairns to London
Search Deals
5/2
  • 5/2
  • 2 total stops
  • 45h 30m total
  • Cairns to London
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($128 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($130 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 7 January 2026.

Mon 2/206:00CNS - LHR
2 stops45h 30mMultiple Airlines
Fri 6/221:00LHR - CNS
2 stops52h 20mMultiple Airlines
Deal found 6/1$1,632
Wed 18/218:35CNS - LHR
1 stop34h 35mSingapore Airlines
Sat 28/221:45LHR - CNS
1 stop33h 35mSingapore Airlines
Deal found 6/1$1,638
Mon 2/218:35CNS - LHR
1 stop30h 45mSingapore Airlines
Fri 6/210:40LHR - CNS
1 stop44h 40mSingapore Airlines
Deal found 6/1$1,709
Wed 18/206:00CNS - LHR
2 stops34h 15mQantas Airways
Mon 16/320:10LHR - CNS
2 stops28h 35mQantas Airways
Deal found 6/1$1,723
Wed 18/206:00CNS - LHR
2 stops34h 15mQantas Airways
Sat 28/220:10LHR - CNS
1 stop29h 40mQantas Airways
Deal found 6/1$1,775
Sun 1/311:35CNS - LHR
2 stops34h 05mMultiple Airlines
Tue 31/320:50LHR - CNS
2 stops29h 00mMultiple Airlines
Deal found 6/1$1,788
Wed 11/218:35CNS - LHR
1 stop34h 35mSingapore Airlines
Fri 13/321:45LHR - CNS
1 stop33h 35mSingapore Airlines
Deal found 5/1$1,802
Fri 20/206:00CNS - LHR
2 stops34h 15mQantas Airways
Fri 27/220:10LHR - CNS
1 stop29h 40mQantas Airways
Deal found 5/1$1,810
Wed 18/211:35CNS - LHR
2 stops34h 05mMultiple Airlines
Sat 28/220:10LHR - CNS
2 stops29h 40mMultiple Airlines
Deal found 6/1$1,839
Thu 19/215:35CNS - LHR
2 stops32h 15mMultiple Airlines
Thu 26/220:10LHR - CNS
2 stops28h 35mMultiple Airlines
Deal found 5/1$1,860

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 7 January 2026.
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 18/2

18:35-19:10

1 stop34h 35m

London Heathrow

Sat 28/2

21:45-17:20

1 stop33h 35m

$1,638

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Wed 18/2

18:35-19:10

1 stop34h 35m

London Heathrow

Mon 16/3

21:45-17:20

1 stop33h 35m

$1,638

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Mon 2/2

18:35-15:20

1 stop30h 45m

London Heathrow

Fri 6/2

10:40-17:20

1 stop44h 40m

$1,709

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Wed 18/2

06:00-06:15

2 stops34h 15m

London Heathrow

Mon 16/3

20:10-11:50

1 stop29h 40m

$1,741

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Wed 18/2

11:35-11:40

2 stops34h 05m

London Heathrow

Sat 28/2

20:10-11:50

2 stops29h 40m

$1,839

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Thu 19/2

15:35-13:50

2 stops32h 15m

London Heathrow

Thu 26/2

20:10-10:45

2 stops28h 35m

$1,860

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Sun 1/3

09:45-06:15

2 stops30h 30m

London Heathrow

Tue 31/3

20:50-14:10

3 stops32h 20m

$1,879

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Thu 19/2

06:00-06:15

2 stops34h 15m

London Heathrow

Thu 26/2

20:10-14:05

3 stops31h 55m

$1,907

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Mon 2/2

06:40-19:55

3 stops47h 15m

London Heathrow

Fri 6/2

16:00-05:45

2 stops27h 45m

$1,928

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Fri 20/2

06:00-06:15

2 stops34h 15m

London Heathrow

Fri 27/2

20:10-10:45

2 stops28h 35m

$1,943

Flights are sorted by cheapest return flights first.

Deals found on 5/1

Showing 1-10 of 20 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 $1,390). Flying from Cairns to London Heathrow Airport in December is currently the most expensive (average of $2,184). 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.

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 7 January 2026.
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
1,427 reviews
Check prices

Comfort

8.0

Entertainment

8.0

Crew

8.6

Boarding

8.3

Overall

8.1

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
1,427 reviews
Singapore Airlines
8.1
Very Good
1,427 reviews
Check prices

Comfort

8.0

Entertainment

8.0

Crew

8.6

Boarding

8.3

Overall

8.1

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.
Qantas Airways
7.5
Good
967 reviews
Singapore Airlines
8.1
Very Good
1,427 reviews
Check prices

Comfort

8.0

Entertainment

8.0

Crew

8.6

Boarding

8.3

Overall

8.1

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?

    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 and Qantas Airways fly from Cairns to London Heathrow Airport in about 34h 15m. The time it takes to get you to your destination can typically vary by up to 20m. Airlines will cover a distance of 15142 km. Both multi-stop and direct flights can be found to your destination and back.

  • 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 $1,421. 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, February is the cheapest month in which you can book a flight from Cairns to London Heathrow Airport (average of $1,390). Flying from Cairns to London Heathrow Airport in December is currently the most expensive (average of $2,184). 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
Kingston upon Thames
Salisbury
Hounslow
Horsham
Southall
Chatham
Dover
Braintree
Gatwick
Chertsey

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 7 January 2026.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest$1,421Average$1,950FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
Qantas AirwaysCheapest$2,001Average$2,590FlexibilityNo cancel feeOn-time74%
Search Qantas Airways 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?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Heathrow from Cairns today with Cheapflights!

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.