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Cheap flights from Cairns to London from £350

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 15/11. 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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0 bags
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Find the cheapest flights from Cairns to London (CNS-LHR)

Cheap return flights

Logo
06:00 - 18:40CNS-LHR
45h 40m2 stops
Logo
21:00 - 21:00LHR-CNS
38h 00m2 stops
£803
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Wed, 22 Oct - Wed, 29 Oct
Logo
21:30 - 18:40CNS-LHR
54h 10m2 stops
Logo
21:20 - 19:00LHR-CNS
36h 40m2 stops
£824
Find Deal
Mon, 8 Sep - Mon, 15 Sep
Singapore Airlines Logo
18:35 - 19:10CNS-LHR
34h 35m1 stop
Singapore Airlines Logo
21:45 - 17:20LHR-CNS
33h 35m1 stop
£839Singapore Airlines
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Wed, 14 Jan - Sat, 28 Feb
Logo
18:15 - 15:45CNS-LHR
30h 30m1 stop
Logo
21:00 - 21:00LHR-CNS
38h 00m2 stops
£842
Find Deal
Wed, 22 Oct - Wed, 29 Oct
Singapore Airlines Logo
18:15 - 15:45CNS-LHR
30h 30m1 stop
Singapore Airlines Logo
21:45 - 17:20LHR-CNS
33h 35m1 stop
£935Singapore Airlines
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Wed, 22 Oct - Wed, 29 Oct
Qatar Airways Logo
17:20 - 12:10CNS-LHR
28h 50m2 stops
Qatar Airways Logo
08:35 - 23:05LHR-CNS
28h 30m2 stops
£1,000Qatar Airways
Find Deal
Wed, 14 Jan - Sat, 28 Feb
Qantas Airways Logo
18:35 - 06:35CNS-LHR
45h 00m1 stop
Qantas Airways Logo
20:10 - 11:50LHR-CNS
29h 40m2 stops
£1,093Qantas Airways
Find Deal
Tue, 30 Sep - Fri, 7 Nov
Qatar Airways Logo
16:30 - 13:15CNS-LHR
29h 45m2 stops
Qatar Airways Logo
16:00 - 14:15LHR-CNS
37h 15m2 stops
£1,116Qatar Airways
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Thu, 2 Oct - Thu, 9 Oct
Qantas Airways Logo
06:00 - 06:15CNS-LHR
34h 15m3 stops
Qantas Airways Logo
20:10 - 10:45LHR-CNS
28h 35m2 stops
£1,139Qantas Airways
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Wed, 14 Jan - Sat, 28 Feb
China Southern Logo
15:35 - 19:00CNS-LHR
60h 25m2 stops
China Southern Logo
22:10 - 11:55LHR-CNS
52h 45m2 stops
£1,336China Southern
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Mon, 22 Sep - Sat, 4 Oct

Singapore Airlines flights from Cairns to London Heathrow Airport

Our best Singapore Airlines deals on Cairns to London Heathrow Airport flight tickets
Singapore Airlines
14 Jan
CNS18:35Cairns
34h 35m
1 stop
LHR19:10London Heathrow
28 Feb
LHR21:45London Heathrow
33h 35m
1 stop
CNS17:20Cairns
£839
Find similar
Singapore Airlines
22 Oct
CNS18:15Cairns
30h 30m
1 stop
LHR15:45London Heathrow
29 Oct
LHR21:45London Heathrow
33h 35m
1 stop
CNS17:20Cairns
£935
Find similar
Singapore Airlines
8 Sept
CNS18:15Cairns
22h 30m
1 stop
LHR07:45London Heathrow
15 Sept
LHR22:05London Heathrow
33h 55m
1 stop
CNS17:00Cairns
£1,296
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Qantas Airways flights from Cairns to London Heathrow Airport

Our best Qantas Airways deals on Cairns to London Heathrow Airport flight tickets
Qantas Airways
30 Sept
CNS18:35Cairns
45h 00m
1 stop
LHR06:35London Heathrow
7 Nov
LHR20:10London Heathrow
29h 40m
2 stops
CNS11:50Cairns
£1,093
Find similar
Qantas Airways
14 Jan
CNS06:00Cairns
34h 15m
3 stops
LHR06:15London Heathrow
28 Feb
LHR20:10London Heathrow
28h 35m
2 stops
CNS10:45Cairns
£1,139
Find similar
Qantas Airways
30 Sept
CNS18:35Cairns
45h 00m
1 stop
LHR06:35London Heathrow
7 Nov
LHR20:10London Heathrow
29h 40m
1 stop
CNS11:50Cairns
£1,173
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 279,928 searches. Data last updated 19 August 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

Wed 22/10

06:00-18:40

2 stops45h 40m

London Heathrow

Wed 29/10

21:00-21:00

2 stops38h 00m

£803

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Mon 8/9

21:30-18:40

2 stops54h 10m

London Heathrow

Mon 15/9

21:20-19:00

2 stops36h 40m

£824

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

£839

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Wed 22/10

18:15-15:45

1 stop30h 30m

London Heathrow

Wed 29/10

21:00-21:00

2 stops38h 00m

£842

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Wed 22/10

18:15-15:45

1 stop30h 30m

London Heathrow

Wed 29/10

21:45-17:20

1 stop33h 35m

£935

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Wed 14/1

17:20-12:10

2 stops28h 50m

London Heathrow

Sat 28/2

08:35-23:05

2 stops28h 30m

£1,000

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Tue 30/9

18:35-06:35

1 stop45h 00m

London Heathrow

Fri 7/11

20:10-11:50

2 stops29h 40m

£1,093

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Thu 2/10

16:30-13:15

2 stops29h 45m

London Heathrow

Thu 9/10

16:00-14:15

2 stops37h 15m

£1,116

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Wed 14/1

06:00-06:15

3 stops34h 15m

London Heathrow

Sat 28/2

20:10-10:45

2 stops28h 35m

£1,139

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Mon 22/9

15:35-19:00

2 stops60h 25m

London Heathrow

Sat 4/10

22:10-11:55

2 stops52h 45m

£1,336

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to London from

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?

In general, October is the cheapest month to fly from Cairns to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £719. The month of February is another great option to travel to London Heathrow Airport, with average flight prices from Cairns averaging around £731.

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

On average, the least expensive day to fly to London Heathrow Airport from Cairns is on a Monday. momondo users have found tickets for Monday departures for as low as £546. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Tuesday as prices are generally higher than usual. According to our data, the average ticket price to London Heathrow Airport on Tuesday is £883.

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

According to our data, the cheapest time of day to fly to London Heathrow Airport is in the afternoon. momondo users have found flights departing from Cairns to London Heathrow Airport in the afternoon for as low as £795. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are £1,225 on average. Flights to London Heathrow Airport from Cairns in the morning are generally more expensive because this time of day is more convenient for travellers’ schedules.

How far in advance should I book a flight to London Heathrow Airport?

You are more likely to see cheaper flights to London Heathrow Airport from Cairns when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around £1,059 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from Cairns for as low as £861 on momondo.

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

You could potentially save up to 45% 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 August 2025, prices for Cairns to London Heathrow Airport flights are approximately 5% cheaper 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

Best price found

£350

Fastest flight time

22h 30m

Direct flights

None
The best one-way flight to London Heathrow Airport from Cairns in the past 72 hours is £350. The best return flight deal from Cairns to London Heathrow Airport found on momondo in the last 72 hours is £803.
The fastest flight from Cairns to London Heathrow Airport takes 22h 30m
There are no direct flights from Cairns to London Heathrow Airport. Popular non-direct route for this connection is Cairns Airport - London Heathrow Airport.
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  • How far is Cairns to London Heathrow by plane?

    London Heathrow is 9411.6 mi away from Cairns. In terms of flight time, this usually takes a little over 22h 30m.

  • 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?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify 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 license 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 £955Free CancellationRating
8.1
1,347 reviews
Search Singapore Airlines flights

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Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Cairns to London. momondo saves you time and could save you money on your trip.

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

Yes. momondo enables you to select and highlight flights to London from Cairns with this policy.

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

momondo helps you find the best flight between Cairns and London by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Of course. momondo tracks the price of Cairns to London flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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