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Cheap flights from Cairns to London Heathrow Airport from $857

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 6/5. Fares are subject to change and may not be available on all flights or dates of travel.
CNS — LHR
21 May — 28 May1
1 adult
1 adult, Economy, 0 bags

Cheap 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 21 April 2026.

Sun 7/611:00
CNS
-
LHR
3 stops41h 30m
Multiple Airlines
Fri 12/622:00
LHR
-
CNS
3 stops37h 50m
Multiple Airlines
Deal found 17/4$1,774
Wed 17/611:00
CNS
-
LHR
2 stops40h 45m
Multiple Airlines
Mon 24/809:30
LHR
-
CNS
2 stops28h 10m
Multiple Airlines
Deal found 17/4$1,787
Wed 13/512:35
CNS
-
LHR
2 stops27h 25m
Multiple Airlines
Sun 24/509:30
LHR
-
CNS
2 stops28h 10m
Multiple Airlines
Deal found 19/4$1,805
Tue 2/606:45
CNS
-
LHR
2 stops39h 00m
Multiple Airlines
Tue 9/609:30
LHR
-
CNS
2 stops28h 10m
Multiple Airlines
Deal found 18/4$1,809
Fri 5/611:00
CNS
-
LHR
2 stops34h 45m
Multiple Airlines
Fri 12/609:30
LHR
-
CNS
2 stops38h 50m
Multiple Airlines
Deal found 21/4$1,934
Sun 17/506:45
CNS
-
LHR
2 stops33h 15m
Multiple Airlines
Sun 24/509:30
LHR
-
CNS
2 stops28h 10m
Multiple Airlines
Deal found 19/4$1,974
Mon 15/606:45
CNS
-
LHR
2 stops33h 15m
Multiple Airlines
Mon 24/809:30
LHR
-
CNS
2 stops28h 10m
Multiple Airlines
Deal found 19/4$1,975
Wed 29/411:00
CNS
-
LHR
2 stops29h 25m
Multiple Airlines
Wed 6/509:30
LHR
-
CNS
2 stops38h 50m
Multiple Airlines
Deal found 16/4$1,982
Thu 4/620:00
CNS
-
LHR
2 stops49h 45m
Multiple Airlines
Thu 11/609:30
LHR
-
CNS
2 stops28h 10m
Multiple Airlines
Deal found 20/4$2,005

Find 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 21 April 2026.

Round-trip from

$1,774

One-way from

$857

Popular in

January

Cheapest in

February

Average price

$2,034
7/6-12/6
  • 7/6-12/6
  • 6 total stops
  • 79h 20m total
  • Cairns to London
Search Deals
6/5
  • 6/5
  • 3 total stops
  • 57h 20m total
  • Cairns to London
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($194 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($103 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

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 21 April 2026.
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

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Mon 15/6

16:55-14:10

2 stops30h 15m

London Heathrow

Mon 24/8

15:05-09:50

2 stops33h 45m

$2,581
Fastest return journey

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Mon 15/6

18:15-19:30

1 stop34h 15m

London Heathrow

Mon 24/8

09:25-17:00

1 stop22h 35m

$2,701

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Wed 10/6

10:30-13:15

2 stops35h 45m

London Heathrow

Sat 18/7

15:05-08:40

2 stops32h 35m

$2,795

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Thu 14/5

13:40-14:10

2 stops33h 30m

London Heathrow

Mon 6/7

21:55-09:50

2 stops50h 55m

$2,881

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Wed 17/6

18:15-15:45

1 stop54h 30m

London Heathrow

Mon 24/8

09:25-17:00

1 stop22h 35m

$2,953

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Tue 2/6

15:45-12:25

2 stops29h 40m

London Heathrow

Tue 9/6

20:50-15:00

3 stops33h 10m

$3,311

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Tue 19/5

12:35-15:15

2 stops59h 40m

London Heathrow

Tue 7/7

18:20-11:50

2 stops32h 30m

$3,479

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Wed 20/5

13:40-18:10

2 stops61h 30m

London Heathrow

Thu 9/7

20:15-17:35

2 stops36h 20m

$3,644

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Mon 22/6

16:55-14:10

2 stops30h 15m

London Heathrow

Fri 17/7

19:25-11:25

2 stops31h 00m

$3,663

CairnsLondon

CNS - LHR

CNSLHR

Cairns

Sun 21/6

16:55-13:15

2 stops29h 20m

London Heathrow

Fri 17/7

19:25-11:25

2 stops31h 00m

$3,744

Flights are sorted by cheapest return flights first.

Deals found on 21/4

Showing 1-10 of 20 resultsSorted by cheapest first
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 $1,439). Flying from Cairns to London Heathrow Airport in January is currently the most expensive (average of $2,856). 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.

How much does it cost for a return flight from Cairns to London Heathrow Airport?

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 21 April 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
8.2
Very Good
1,499 reviews
Check prices

Comfort

8.0

Boarding

8.3

Crew

8.6

Food

7.8

Entertainment

8.0

Overall

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SIN - JNB

Cabin crew in business class was just so amazing, friendly, caring and professional
Singapore Airlines
8.2
Very Good
1,499 reviews
Singapore Airlines
8.2
Very Good
1,499 reviews
Check prices

Comfort

8.0

Boarding

8.3

Crew

8.6

Food

7.8

Entertainment

8.0

Overall

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SIN - JNB

Cabin crew in business class was just so amazing, friendly, caring and professional
Qantas Airways
7.5
Good
1,023 reviews
Singapore Airlines
8.2
Very Good
1,499 reviews
Check prices

Comfort

8.0

Boarding

8.3

Crew

8.6

Food

7.8

Entertainment

8.0

Overall

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SIN - JNB

Cabin crew in business class was just so amazing, friendly, caring and professional

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 Qatar Airways and Singapore Airlines fly from Cairns to London Heathrow Airport in about 30h 15m. The time it takes to get you to your destination can typically vary by up to 4h. 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 $1,328. Another airline that can offer you cheap pricing is Qantas Airways. Singapore Airlines is priced at 35% 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 $1,439). Flying from Cairns to London Heathrow Airport in January is currently the most expensive (average of $2,856). 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
Hounslow
Kingston upon Thames
Salisbury
Horsham
Chatham
Aylesbury
Dover
Luton
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 21 April 2026.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest$1,328Average$1,863FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
Qantas AirwaysCheapest$2,080Average$2,433FlexibilityNo 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.

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