$456 Cheap Flights from Cairns (CNS) to London (LHR)

View $456 flight on Sun, Feb 1, 2026Opens in a new window

Popular airlines from Cairns Intl. Airport (CNS) to Heathrow Airport (LHR)

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Cheap Flights from Cairns to London (CNS-LHR)

Prices were available within the past 7 days and start at $456 for one-way flights and $1,215 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Singapore Airlines
Sun, Apr 5 - Mon, Apr 27
CNS
Cairns
LHR
London
$1,215 Roundtrip, found 2 days ago
$1,215
Roundtrip
found 2 days ago
Select Singapore Airlines flight, departing Sun, Apr 5 from Cairns to London, returning Mon, Apr 27, priced at $1,215 found 2 days ago
Singapore Airlines
Sun, Apr 5 - Mon, Apr 27
CNS
Cairns
LHR
London
$1,246 Roundtrip, found 2 days ago
$1,246
Roundtrip
found 2 days ago
Select Singapore Airlines flight, departing Sun, Apr 5 from Cairns to London, returning Mon, Apr 27, priced at $1,246 found 2 days ago
Singapore Airlines
Sun, Apr 5 - Mon, Apr 27
CNS
Cairns
LHR
London
$1,250 Roundtrip, found 2 days ago
$1,250
Roundtrip
found 2 days ago
Select Singapore Airlines flight, departing Sun, Apr 5 from Cairns to London, returning Mon, Apr 27, priced at $1,250 found 2 days ago
Singapore Airlines
Sun, Apr 5 - Mon, Apr 27
CNS
Cairns
LHR
London
$1,257 Roundtrip, found 2 days ago
$1,257
Roundtrip
found 2 days ago
Select Singapore Airlines flight, departing Sun, Apr 5 from Cairns to London, returning Mon, Apr 27, priced at $1,257 found 2 days ago
Lufthansa
Fri, Apr 24 - Sat, May 9
CNS
Cairns
LHR
London
$1,271 Roundtrip, found 2 days ago
$1,271
Roundtrip
found 2 days ago
Select Lufthansa flight, departing Fri, Apr 24 from Cairns to London, returning Sat, May 9, priced at $1,271 found 2 days ago
Singapore Airlines
Sun, Apr 5 - Mon, Apr 27
CNS
Cairns
LHR
London
$1,279 Roundtrip, found 2 days ago
$1,279
Roundtrip
found 2 days ago
Select Singapore Airlines flight, departing Sun, Apr 5 from Cairns to London, returning Mon, Apr 27, priced at $1,279 found 2 days ago
Singapore Airlines
Sun, Apr 5 - Tue, Apr 28
CNS
Cairns
LHR
London
$1,283 Roundtrip, found 2 days ago
$1,283
Roundtrip
found 2 days ago
Select Singapore Airlines flight, departing Sun, Apr 5 from Cairns to London, returning Tue, Apr 28, priced at $1,283 found 2 days ago
Cathay Pacific
Tue, Nov 25 - Sun, Dec 7
CNS
Cairns
LHR
London
$1,462 Roundtrip, found 3 days ago
$1,462
Roundtrip
found 3 days ago
Select Cathay Pacific flight, departing Tue, Nov 25 from Cairns to London, returning Sun, Dec 7, priced at $1,462 found 3 days ago
British Airways
Tue, Apr 28 - Fri, May 15
CNS
Cairns
LHR
London
$1,473 Roundtrip, found 2 days ago
$1,473
Roundtrip
found 2 days ago
Select British Airways flight, departing Tue, Apr 28 from Cairns to London, returning Fri, May 15, priced at $1,473 found 2 days ago
Qatar Airways
Tue, May 26 - Sun, Jun 7
CNS
Cairns
LHR
London
$1,492 Roundtrip, found 2 days ago
$1,492
Roundtrip
found 2 days ago
Select Qatar Airways flight, departing Tue, May 26 from Cairns to London, returning Sun, Jun 7, priced at $1,492 found 2 days ago

Alternative airports near London

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Heathrow LHR. Cheapest option available. Average driving time to city center is 28 minutes. Flights from $1,563
LHR
Heathrow
Cheapest
Average driving time to city center28 min
Flights from $1,563
Flights from Cairns (CNS) to London (LHR)
Origin airport
Cairns Intl.
Destination airport
Heathrow
Roundtrip price
$1,215
Distance
9414 mi

Cairns to London Flights

The cheapest times to fly from Cairns to London

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Cairns to London are during the month of April. You can find some of the cheapest flights from Cairns to London with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Cairns to London

Sunday is one of the best days to book for cheap flights from Cairns to London: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Cairns to London

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Cairns to London in 2025. You can also book with separate airlines for your outbound and return journeys, from $456 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Cairns to London flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Cairns to London airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Cairns Intl. Airport (CNS) to Heathrow Airport (LHR) cost?
Get a cheap one-way flight from $456 or cheap return flight from $1,215 from Cairns Intl. Airport (CNS) to Heathrow Airport (LHR) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Cairns Intl. Airport (CNS) to Heathrow Airport (LHR)?
Planning your trip for April can help you save, as it's the cheapest month for flights between CNS and LHR. You'll typically find the lowest prices during the off-season.
What is the cheapest airline that flies from Cairns Intl. Airport (CNS) to Heathrow Airport (LHR)?
To find the cheapest airline that'll fly you from CNS to LHR, use Expedia's filter tool. Tailor your search based on your travel style, such as preferred carriers and flight duration. You can then sort your results by "Price (lowest to highest)" to list the most affordable options first.
How many flights per day from Cairns Intl. Airport (CNS) to Heathrow Airport (LHR)?
Nonstop flights from Cairns Intl. Airport (CNS) to Heathrow Airport (LHR) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filters. Enter your travel dates and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from CNS to LHR?
Friday is usually the busiest day for flights, while Tuesday tends to be the quietest.* Remember that flight schedules can change depending on a range of factors, including the season and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Cairns Intl. Airport (CNS) to Heathrow Airport (LHR)?
To avoid possible delays on the Cairns Intl. Airport (CNS) to Heathrow Airport (LHR) route, aim to fly before 3 PM. Flights after this time have a 22% higher chance of cancellation.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Cairns Intl. Airport (CNS) to Heathrow Airport (LHR) last-minute?
Booking your ticket from CNS to LHR just before your journey is generally more expensive. However, if there's some wiggle room with your travel dates and times, you could score a cheap last-minute fare.
Is it cheaper to book a CNS to LHR flight and hotel package?
You can save money by securing a CNS to LHR flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one place. After choosing your ideal accommodations and flights, consider other add-ons like activities, car rentals and tours.
Can I cancel or change the date of my flight from Cairns Intl. Airport (CNS) to Heathrow Airport (LHR)?
In most cases, you can cancel or reschedule your CNS to LHR flight. However, additional charges may apply, especially if you made your booking more than 24 hours ago. Check your itinerary for the airline's fees and policies on flight changes, or if you want further details, go to our Customer Service portal.

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*Available to One Key members.