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 16h 10m. Airlines will cover a distance of 15142 km. Both multi-stop and direct flights can be found to your destination and back.

What is the cheapest airline to fly from Cairns to London Heathrow Airport round-trip?

Cheapflights users have booked flights from Cairns to London Heathrow Airport round-trip from $1,450. Singapore Airlines is priced at 33% lower than the current average price of a flight leaving 3 months from now.

In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

What is the cheapest time of day to fly from CNS to LHR?

When flying from Cairns to London Heathrow Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 1 airline.

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.

$754+ Cheap Flights from Cairns to London Heathrow Airport

Cheap flight deals from Cairns to Heathrow

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

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 17 September 2026.

Wed 28/1009:45 -

2 stops41h 45m

Wed 4/1121:00 -

2 stops50h 00m

Deal found 13/9$1,741

Thu 5/1106:00 -

2 stops45h 30m

Thu 12/1121:00 -

2 stops34h 15m

Deal found 14/9$1,809

Thu 5/1119:10 -

2 stops34h 10m

Wed 18/1121:00 -

2 stops49h 20m

Deal found 14/9$1,900

Mon 19/1020:35 -

2 stops55h 05m

Mon 16/1121:00 -

2 stops39h 10m

Deal found 14/9$1,904

Mon 28/910:15 -

2 stops41h 25m

Tue 13/1021:20 -

2 stops37h 30m

Deal found 13/9$2,015

Mon 19/1017:25 -

2 stops35h 50m

Mon 16/1115:50 -

2 stops33h 05m

Deal found 16/9$2,025

Mon 19/1018:15 -

1 stop34h 15m

Mon 16/1120:35 -

1 stop34h 40m

Deal found 16/9$2,031

Find flight deals from Cairns to Heathrow

Round-trip from	$1,630
One-way from	$754
Popular in	July
Cheapest in	October
Average price	$2,871

Singapore Airlines
31/1-21/2
2 total stops
69h 30m total
Cairns to London

Search Deals

Singapore Airlines
12/10-31/12
1 total stop
30h 30m total
Cairns to London

Search Deals

Highest demand for flights based on searches. 13% potential increase in price ($487 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($110 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

Cheapflights Fare Finder

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

Cheapest return flight

Fastest return journey

CairnsLondon

CNS Cairns - LHR London Heathrow

CNSLHR

Cairns

Mon 12/10

18:15-15:45

1 stop30h 30m

London Heathrow

Wed 31/12

00:00-09:00

Nonstop0h 00m

$758

CairnsLondon

CNS Cairns - LHR London Heathrow

CNSLHR

Cairns

Fri 15/1

19:15-18:25

3 stops57h 10m

London Heathrow

Wed 31/12

00:00-09:00

Nonstop0h 00m

$833

CairnsLondon

CNS Cairns - LHR London Heathrow

CNSLHR

Cairns

Mon 12/10

19:35-19:30

3 stops56h 55m

London Heathrow

Wed 31/12

00:00-09:00

Nonstop0h 00m

$857

CairnsLondon

CNS Cairns - LHR London Heathrow

CNSLHR

Cairns

Sun 11/10

20:35-18:40

2 stops55h 05m

London Heathrow

Wed 31/12

00:00-09:00

Nonstop0h 00m

$889

CairnsLondon

CNS Cairns - LHR London Heathrow

CNSLHR

Cairns

Sun 11/10

18:15-15:45

1 stop30h 30m

London Heathrow

Wed 31/12

00:00-09:00

Nonstop0h 00m

$958

CairnsLondon

CNS Cairns - LHR London Heathrow

CNSLHR

Cairns

Thu 29/10

19:10-20:00

2 stops34h 50m

London Heathrow

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,122

CairnsLondon

CNS Cairns - LHR London Heathrow

CNSLHR

Cairns

Sat 10/10

09:25-19:20

3 stops42h 55m

London Heathrow

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,335

CairnsLondon

CNS Cairns - LHR London Heathrow

CNSLHR

Cairns

Tue 15/12

18:05-17:30

3 stops57h 25m

London Heathrow

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,356

CairnsLondon

CNS Cairns - LHR London Heathrow

CNSLHR

Cairns

Wed 23/9

18:15-15:45

1 stop30h 30m

London Heathrow

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,478

CairnsLondon

CNS Cairns - LHR London Heathrow

CNSLHR

Cairns

Tue 17/11

18:05-06:15

1 stop46h 10m

London Heathrow

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,684

Flights are sorted by cheapest return flights first.

Deals found on 17/9

Showing 1-10 of 20 resultsSorted by cheapest first

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.

CNS-LHR

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.

Reviews of airlines servicing Heathrow

See what other customers who have flown with Singapore Airlines 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

8.2

Very Good

1,602 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Wee Keng,May 2026

SIN - MNL

Was upgraded to Premium Economy seat as PPS member. SQ steward team prepared birthday cake for a colleague which I requested and didn’t follow up. Great service and a great way to fly.

Singapore Airlines

8.2

Very Good

1,602 reviews

Singapore Airlines

8.2

Very Good

1,602 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Wee Keng,May 2026

SIN - MNL

Was upgraded to Premium Economy seat as PPS member. SQ steward team prepared birthday cake for a colleague which I requested and didn’t follow up. Great service and a great way to fly.

Related info for your journey

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 1 airline.
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 16h 10m. Airlines will cover a distance of 15142 km. Both multi-stop and direct flights can be found to your destination and back.
What is the cheapest airline to fly from Cairns to London Heathrow Airport round-trip?
Cheapflights users have booked flights from Cairns to London Heathrow Airport round-trip from $1,450. Singapore Airlines is priced at 33% 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.

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Top airline flying from Cairns to Heathrow

Airline	Cheapest	Average	Flexibility	On-time
Singapore Airlines	Cheapest$1,450	Average$1,877	FlexibilityNo cancel fee	On-time81%	Search Singapore Airlines flights

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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.

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Cheap flights from Cairns to London Heathrow Airport from $754

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Cairns to Heathrow

Cheapest flights from Cairns to HeathrowExplore 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 17 September 2026.

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 17 September 2026.

Best flights from Cairns to HeathrowDiscover carefully curated flight deals from Cairns to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 17 September 2026.

Discover carefully curated flight deals from Cairns to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 17 September 2026.

Last-minute flights from Cairns to HeathrowDiscover last-minute flight deals from Cairns to Heathrow. Data last updated 17 September 2026 and is based on user searches.

Discover last-minute flight deals from Cairns to Heathrow. Data last updated 17 September 2026 and is based on user searches.

One-way flights from Cairns to HeathrowSearch for one-way flight options from Cairns to Heathrow. Find affordable one-way fares based on user searches. Data last updated 17 September 2026.

Search for one-way flight options from Cairns to Heathrow. Find affordable one-way fares based on user searches. Data last updated 17 September 2026.

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Cheapflights Fare Finder

Use the filters below to find and compare flights from Cairns to London Heathrow Airport that are best for you.

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.

Reviews of airlines servicing Heathrow

See what other customers who have flown with Singapore Airlines 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.

Related info for your journey

What airport do you fly from for flights from Cairns to London Heathrow?

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

What is the cheapest airline to fly from Cairns to London Heathrow Airport round-trip?

Can I find deals for flights from Cairns to Heathrow that include hotel bookings?

How can I find direct flights from Cairns to Heathrow?

Can I find deals for business class flights from Cairns to Heathrow?

Travelling to a place near London Heathrow Airport?

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.

Alternative routes for Cairns to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Heathrow by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to England

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Search flights from Cairns to Heathrow by cabin class

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Other flights to Heathrow

Explore flights to Heathrow departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 17 September 2026.

Cairns and Heathrow flights

Browse other Cairns and Heathrow flight options. Last updated on 17 September 2026.

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Browse through other flights departing from Cairns. Flights are based on user searches made on Cheapflights and were last updated on 17 September 2026.

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Top airline flying from Cairns to Heathrow

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

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

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

Can Cheapflights notify me if prices for flights from Cairns to Heathrow become cheaper?

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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 17 September 2026.

Best flights from Cairns to Heathrow
Discover carefully curated flight deals from Cairns to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 17 September 2026.

Last-minute flights from Cairns to Heathrow
Discover last-minute flight deals from Cairns to Heathrow. Data last updated 17 September 2026 and is based on user searches.

One-way flights from Cairns to Heathrow
Search for one-way flight options from Cairns to Heathrow. Find affordable one-way fares based on user searches. Data last updated 17 September 2026.