$857+ Cheap flights to Heathrow
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 26/2. Fares are subject to change and may not be available on all flights or dates of travel.
Flights to Heathrow in 2025
Find the latest flights to Heathrow in 2025, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 647,157 searches and data was last updated on 16 January 2025.
Find flight deals to Heathrow Airport
Cheapest flights to Heathrow AirportExplore the most affordable flight options available to Heathrow Airport. Find the lowest fares based on data from user searches, with prices last updated on 16 January 2025.
Explore the most affordable flight options available to Heathrow Airport. Find the lowest fares based on data from user searches, with prices last updated on 16 January 2025.
Find flights to Heathrow within your budget
Locate flights to Heathrow that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 647,157 searches and data was last updated on 16 January 2025.
Fly from
Route
Depart
Return
Price
SydneyLondon
SYD - LHR
SYDLHR
Sydney Kingsford Smith
Tue 1/4
22:05-22:25
2 stops34h 20m
London Heathrow
Thu 1/5
06:30-19:10
2 stops27h 40m
SydneyLondon
SYD - LHR
SYDLHR
Sydney Kingsford Smith
Wed 5/3
22:10-18:15
1 stop31h 05m
London Heathrow
Wed 2/4
20:50-09:25
2 stops26h 35m
SydneyLondon
SYD - LHR
SYDLHR
Sydney Kingsford Smith
Sun 16/2
16:25-15:55
3 stops34h 30m
London Heathrow
Fri 28/2
21:40-20:35
3 stops35h 55m
SydneyLondon
SYD - LHR
SYDLHR
Sydney Kingsford Smith
Fri 14/2
22:10-16:55
1 stop29h 45m
London Heathrow
Mon 17/2
21:15-12:10
1 stop27h 55m
SydneyLondon
SYD - LHR
SYDLHR
Sydney Kingsford Smith
Thu 30/1
12:00-13:55
1 stop36h 55m
London Heathrow
Thu 27/2
21:00-13:35
1 stop29h 35m
SydneyLondon
SYD - LHR
SYDLHR
Sydney Kingsford Smith
Thu 13/2
22:20-20:10
1 stop32h 50m
London Heathrow
Thu 20/2
22:05-12:00
1 stop26h 55m
SydneyLondon
SYD - LHR
SYDLHR
Sydney Kingsford Smith
Tue 8/7
21:30-15:15
1 stop26h 45m
London Heathrow
Sat 20/9
09:30-06:10
1 stop35h 40m
SydneyLondon
SYD - LHR
SYDLHR
Sydney Kingsford Smith
Sat 15/2
20:30-11:30
1 stop26h 00m
London Heathrow
Wed 19/2
20:30-19:00
1 stop35h 30m
SydneyLondon
SYD - LHR
SYDLHR
Sydney Kingsford Smith
Mon 12/5
09:30-18:00
1 stop41h 30m
London Heathrow
Mon 7/7
20:10-07:30
1 stop26h 20m
SydneyLondon
SYD - LHR
SYDLHR
Sydney Kingsford Smith
Fri 14/2
11:20-10:10
1 stop33h 50m
London Heathrow
Fri 21/2
18:00-09:35
2 stops52h 35m
Best time to book a flight to Heathrow
Have a flexible travel schedule? Discover the best time to fly to Heathrow with our price prediction graph.
Travel insights for flights to Heathrow
Get recent, data-driven insights about flights to Heathrow including ideal travel times, pricing trends, and more.
When is the best time to book a flight to Heathrow?
Use this chart to determine the optimal time to book a return flight from Sydney to Heathrow. Price data was last updated on 10 January 2025.
The price you pay for your flight to Heathrow may vary depending on when you book. For the best chance of a lower fare, look to book 4 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
How long is the flight to Heathrow?
On average, a flight from Sydney to Heathrow takes 23 hours 45 minutes. Flights to Heathrow from other popular cities in Australia will vary in length. Below are a few examples of popular routes and their flight times.
When is the cheapest time to fly to Heathrow?
Use this chart to determine the cheapest time to fly return from Sydney to Heathrow. Price data was last updated on 16 December 2024.
Users looking for the lowest fares to Heathrow should consider flying on Monday evenings, when prices are typically cheapest. Budget-minded travellers will want to avoid Saturday at midday, when prices are usually at their highest.
Weekly flight availability to Heathrow
The most flights from Sydney to Heathrow are scheduled on a Monday (3 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (3 on average).
What are the most popular airlines that fly to Heathrow?
The most popular airlines flying from Sydney to Heathrow are Singapore Airlines, Cathay Pacific and British Airways.
What are the cheapest airlines that fly to Heathrow?
The cheapest airlines flying from Sydney to Heathrow are Air China, China Southern and China Eastern.
Rainfall in Heathrow by month
Plan your trip to Heathrow by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Heathrow ranges from 40.0 - 70.0 mm per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit Heathrow when rainfall is around 40.0 mm.
Temperature in Heathrow by month
Plan your trip to Heathrow by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Heathrow, 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).
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 16 January 2025.
Peruse reviews from past customers who have flown China Eastern, Air Canada and Lufthansa to London to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Crew
Comfort
Overall
Boarding
Entertainment
Food
Reviews
overall very good; just found a bit poor the food options in Narita airport but the in the flight it was good but limited (no real choice to avoid seafood or clearly stay away from pork..); most of the food was tasty tho and the choice was nice, specially their snacks and dessert and drinks. The in-flight systems was so-so (too complicated interface; they should rehaul with a proper UIX), and I specially appreciated their segments of videos capsules about the behind the scenes including an overview of technicalities of their aircraft and days in the life of their pilots. It was refreshing and give a good ideas of the efforts and challenges every employees has to deal with. Loved it!
Crew
Comfort
Overall
Boarding
Entertainment
Food
Reviews
overall very good; just found a bit poor the food options in Narita airport but the in the flight it was good but limited (no real choice to avoid seafood or clearly stay away from pork..); most of the food was tasty tho and the choice was nice, specially their snacks and dessert and drinks. The in-flight systems was so-so (too complicated interface; they should rehaul with a proper UIX), and I specially appreciated their segments of videos capsules about the behind the scenes including an overview of technicalities of their aircraft and days in the life of their pilots. It was refreshing and give a good ideas of the efforts and challenges every employees has to deal with. Loved it!
Crew
Comfort
Overall
Boarding
Entertainment
Food
Reviews
overall very good; just found a bit poor the food options in Narita airport but the in the flight it was good but limited (no real choice to avoid seafood or clearly stay away from pork..); most of the food was tasty tho and the choice was nice, specially their snacks and dessert and drinks. The in-flight systems was so-so (too complicated interface; they should rehaul with a proper UIX), and I specially appreciated their segments of videos capsules about the behind the scenes including an overview of technicalities of their aircraft and days in the life of their pilots. It was refreshing and give a good ideas of the efforts and challenges every employees has to deal with. Loved it!
Crew
Comfort
Overall
Boarding
Entertainment
Food
Reviews
overall very good; just found a bit poor the food options in Narita airport but the in the flight it was good but limited (no real choice to avoid seafood or clearly stay away from pork..); most of the food was tasty tho and the choice was nice, specially their snacks and dessert and drinks. The in-flight systems was so-so (too complicated interface; they should rehaul with a proper UIX), and I specially appreciated their segments of videos capsules about the behind the scenes including an overview of technicalities of their aircraft and days in the life of their pilots. It was refreshing and give a good ideas of the efforts and challenges every employees has to deal with. Loved it!
Crew
Comfort
Overall
Boarding
Entertainment
Food
Reviews
overall very good; just found a bit poor the food options in Narita airport but the in the flight it was good but limited (no real choice to avoid seafood or clearly stay away from pork..); most of the food was tasty tho and the choice was nice, specially their snacks and dessert and drinks. The in-flight systems was so-so (too complicated interface; they should rehaul with a proper UIX), and I specially appreciated their segments of videos capsules about the behind the scenes including an overview of technicalities of their aircraft and days in the life of their pilots. It was refreshing and give a good ideas of the efforts and challenges every employees has to deal with. Loved it!
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