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Cheap flights from Cairns to London from $789

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Cairns to London departing on 3/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap return flights

Enter your travel dates to find the best prices.
Singapore Airlines Logo
18:35 - 15:20CNS-LHR
30h 45m1 stop
Singapore Airlines Logo
11:25 - 17:00LHR-CNS
44h 35m1 stop
$1,531Singapore Airlines
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Mon, 16 Mar - Mon, 13 Apr
Multiple Airlines Logo
11:25 - 07:45CNS-LHR
30h 20m2 stops
Multiple Airlines Logo
16:40 - 17:20LHR-CNS
38h 40m2 stops
$1,594Multiple Airlines
Find Deal
Tue, 3 Feb - Mon, 9 Feb
Multiple Airlines Logo
19:30 - 18:20CNS-LHR
32h 50m2 stops
Multiple Airlines Logo
09:10 - 22:05LHR-CNS
26h 55m2 stops
$1,701Multiple Airlines
Find Deal
Sun, 28 Dec - Thu, 15 Jan
Singapore Airlines Logo
18:35 - 19:10CNS-LHR
34h 35m1 stop
Singapore Airlines Logo
21:45 - 17:20LHR-CNS
33h 35m1 stop
$1,809Singapore Airlines
Find Deal
Wed, 14 Jan - Sat, 28 Feb
Singapore Airlines Logo
18:35 - 15:20CNS-LHR
30h 45m1 stop
Singapore Airlines Logo
21:45 - 17:20LHR-CNS
33h 35m1 stop
$1,811Singapore Airlines
Find Deal
Wed, 14 Jan - Sat, 28 Feb
Singapore Airlines Logo
18:35 - 15:20CNS-LHR
30h 45m1 stop
Singapore Airlines Logo
21:45 - 17:20LHR-CNS
33h 35m1 stop
$1,812Singapore Airlines
Find Deal
Wed, 14 Jan - Sat, 28 Feb
Singapore Airlines Logo
18:35 - 15:20CNS-LHR
30h 45m1 stop
Singapore Airlines Logo
10:40 - 17:20LHR-CNS
20h 40m1 stop
$1,835Singapore Airlines
Find Deal
Wed, 4 Mar - Sun, 8 Mar
Singapore Airlines Logo
18:35 - 19:10CNS-LHR
34h 35m1 stop
Singapore Airlines Logo
10:40 - 17:20LHR-CNS
20h 40m1 stop
$1,837Singapore Airlines
Find Deal
Wed, 4 Mar - Sun, 8 Mar
SWISS Logo
11:25 - 16:40CNS-LHR
39h 15m3 stops
SWISS Logo
20:05 - 09:55LHR-CNS
51h 50m2 stops
$1,867SWISS
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Tue, 3 Feb - Mon, 9 Feb
Cathay Pacific Logo
11:25 - 15:00CNS-LHR
37h 35m1 stop
Cathay Pacific Logo
17:50 - 09:55LHR-CNS
30h 05m1 stop
$1,952Cathay Pacific
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Thu, 15 Jan - Thu, 22 Jan

Singapore Airlines flights from Cairns to London Heathrow Airport

Our best Singapore Airlines deals on Cairns to London Heathrow Airport flight tickets
Singapore Airlines
16 Mar
CNS18:35Cairns
30h 45m
1 stop
LHR15:20London Heathrow
13 Apr
LHR11:25London Heathrow
44h 35m
1 stop
CNS17:00Cairns
$1,531
Find similar
Singapore Airlines
14 Jan
CNS18:35Cairns
34h 35m
1 stop
LHR19:10London Heathrow
28 Feb
LHR21:45London Heathrow
33h 35m
1 stop
CNS17:20Cairns
$1,809
Find similar
Singapore Airlines
14 Jan
CNS18:35Cairns
30h 45m
1 stop
LHR15:20London Heathrow
28 Feb
LHR21:45London Heathrow
33h 35m
1 stop
CNS17:20Cairns
$1,811
Find similar

Qantas Airways flights from Cairns to London Heathrow Airport

Our best Qantas Airways deals on Cairns to London Heathrow Airport flight tickets
Qantas Airways
14 Mar
CNS12:35Cairns
51h 40m
2 stops
LHR06:15London Heathrow
2 Apr
LHR20:50London Heathrow
32h 20m
2 stops
CNS14:10Cairns
$2,242
Find similar
Qantas Airways
14 Mar
CNS12:35Cairns
51h 40m
2 stops
LHR06:15London Heathrow
2 Apr
LHR20:50London Heathrow
32h 20m
2 stops
CNS14:10Cairns
$2,247
Find similar
Qantas Airways
14 Mar
CNS11:45Cairns
52h 30m
3 stops
LHR06:15London Heathrow
2 Apr
LHR20:50London Heathrow
32h 20m
2 stops
CNS14:10Cairns
$2,280
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Cairns to London Heathrow Airport 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, momondo users made 78,305 searches. Data last updated 3 December 2025.
Use the filters below to find and compare flights from Cairns to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Mon 16/3

18:35-15:20

1 stop30h 45m

London Heathrow

Mon 13/4

11:25-17:00

1 stop44h 35m

$1,531

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Tue 3/2

11:25-07:45

2 stops30h 20m

London Heathrow

Mon 9/2

16:40-17:20

2 stops38h 40m

$1,594

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Sun 28/12

19:30-18:20

2 stops32h 50m

London Heathrow

Thu 15/1

09:10-22:05

2 stops26h 55m

$1,701

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Wed 14/1

18:35-19:10

1 stop34h 35m

London Heathrow

Sat 28/2

21:45-17:20

1 stop33h 35m

$1,809

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

$1,811

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

$1,812

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Wed 4/3

18:35-15:20

1 stop30h 45m

London Heathrow

Sun 8/3

10:40-17:20

1 stop20h 40m

$1,835

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

$1,837

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Tue 3/2

11:25-16:40

3 stops39h 15m

London Heathrow

Mon 9/2

20:05-09:55

2 stops51h 50m

$1,867

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Thu 15/1

11:25-15:00

1 stop37h 35m

London Heathrow

Thu 22/1

17:50-09:55

1 stop30h 05m

$1,952

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Cairns to London Heathrow Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to London Heathrow Airport?

The month of February is, on average, the cheapest month to fly to London Heathrow Airport from Cairns, with most prices found around $1,576. If you aren’t able to travel during the month of February, then book flights to London Heathrow Airport from Cairns during October instead. Flights to London Heathrow Airport in October, while not as cheap as those in February, still average around $1,643.

What is the cheapest day to depart on your flight to London Heathrow Airport?

Our data shows that Sunday is the least expensive day to fly to London Heathrow Airport. Tickets to fly out on this day can be as low as $1,976. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from Cairns to London Heathrow Airport for around $2,972.

What is the cheapest time of day to depart on your flight to London Heathrow Airport?

In the afternoon is the cheapest time of day to fly from Cairns to London Heathrow Airport when you can find flight prices for as low as $2,044. Flying to London Heathrow Airport in the afternoon is an ideal time because this is during off-peak travel hours. In contrast, the most expensive time of day to depart to London Heathrow Airport is in the evening when prices are around $2,500.

Can stopping save me money on Cairns to London Heathrow Airport flights?

You could potentially save up to 42% on your flight if you consider stops on a Cairns to London Heathrow Airport flight.

How have Cairns to London Heathrow Airport flight prices changed over time?

As of December 2025, prices for Cairns to London Heathrow Airport flights are approximately 43% more expensive when compared to flights at the same time last year.

When to book flights from Cairns to London Heathrow Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Cairns to London Heathrow Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Cairns to London Heathrow Airport (CNS to LHR) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Cairns to London Heathrow Airport

Fastest flight time

30h 20m

Direct flights

None
The fastest flight from Cairns to London Heathrow Airport takes 30h 20m
There are no direct flights from Cairns to London Heathrow Airport. There are no popular flight routes from Cairns to London Heathrow Airport.
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  • How far is Cairns to London Heathrow by plane?

    Cairns and London Heathrow are 15146.4 km apart from one another. 23h 05m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Cairns Airport to London Heathrow Airport?

    Prices for flights from Cairns Airport to London Heathrow Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Cairns Airport to London Heathrow Airport?

  • How old do you have to be to fly from Cairns Airport to London Heathrow Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and stopovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Cairns Airport to London Heathrow Airport.

  • What documentation or ID do you need to fly to London Heathrow Airport?

    The travel and health documents you'll need for your trip to London Heathrow Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at London Heathrow Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Cairns to London Heathrow Airport?

Best airlines flying from Cairns to London Heathrow Airport

Compare and see reviews for airlines that fly from Cairns to London Heathrow Airport with momondo
Airline
Rating
Free cancellation
Price
Singapore AirlinesPriceFrom $1,458Free cancellationRating
8.1
1,411 reviews
Search Singapore Airlines flights
Qantas AirwaysPriceFrom $1,934Free cancellationRating
7.5
947 reviews
Search Qantas Airways flights

Travelling to a place near London?

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Why use momondo?

Why should I use momondo to find a flight deal from Cairns to London?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to London from Cairns.

Can I find flights from Cairns to London with flexible booking policies on momondo?

Yes. All flights to London from Cairns on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Cairns to London?

Once all potential Cairns to London flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Cairns to London right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Cairns to London now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to London and let you know when they change.

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