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$590+ Cheap flights to London

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 10/5. Fares are subject to change and may not be available on all flights or dates of travel.
— LON
31 Mar — 7 Apr1
1 adult

Flights to London in 2025

Find the latest flights to London 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 26 March 2025.

Return from

$1,417

One-way from

$590

Popular in

December

Cheapest in

October

Average price

$1,690

Good round-trip deal

$2,039 or less

Good one-way deal

$1,434 or less
China Eastern
  • China Eastern
  • 2/6-16/6
  • 2 total stops
  • 57h 50m total
  • Sydney to London
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10/5
  • 10/5
  • 2 total stops
  • 52h 05m total
  • Sydney to London
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Highest demand for flights based on searches. 11% potential increase in price ($408 potential increase over avg. return price).
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Cheapest flight prices on average. 3% potential price decrease ($103 potential savings vs. average return price).
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Average for return flights in March 2025
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Price to beat on a round-trip flight from Sydney Kingsford Smith to London.
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Price to beat on a one-way flight from Sydney Kingsford Smith to London.
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Find flight deals to London

Cheapest flights to London
Explore the most affordable flight options available to London. Find the lowest fares based on data from user searches, with prices last updated on 26 March 2025.

Mon 2/620:30SYD - LHR
1 stop31h 10mChina Eastern
Mon 16/621:20LHR - SYD
1 stop26h 40mChina Eastern
Deal found 25/3$1,417
Tue 13/511:00SYD - LGW
1 stop28h 40mChina Eastern
Sat 31/518:00LGW - SYD
2 stops28h 40mChina Eastern
Deal found 26/3$1,422
Fri 23/521:45SYD - LHR
1 stop30h 15mChina Southern
Fri 20/622:10LHR - SYD
1 stop25h 15mChina Southern
Deal found 26/3$1,429
Thu 1/519:40SYD - LHR
1 stop33h 50mAir China
Thu 29/520:25LHR - SYD
1 stop33h 25mAir China
Deal found 25/3$1,430
Sat 10/512:50SYD - STN
2 stops36h 25mMultiple Airlines
Thu 15/508:00STN - SYD
2 stops50h 30mMultiple Airlines
Deal found 25/3$1,440
Tue 28/1021:15SYD - LGW
2 stops47h 05mTurkish Airlines
Wed 12/1106:00LGW - SYD
2 stops26h 35mTurkish Airlines
Deal found 25/3$1,446
Thu 15/506:00SYD - LGW
2 stops33h 40mMultiple Airlines
Tue 27/518:00LGW - SYD
2 stops28h 40mMultiple Airlines
Deal found 25/3$1,448
Thu 1/521:00SYD - LHR
2 stops31h 30mMultiple Airlines
Thu 29/522:40LHR - SYD
1 stop31h 10mMultiple Airlines
Deal found 25/3$1,470
Tue 19/819:40SYD - LGW
1 stop43h 55mAir China
Tue 16/912:35LGW - SYD
1 stop41h 15mAir China
Deal found 26/3$1,478
Fri 9/522:10SYD - LHR
1 stop27h 25mMalaysia Airlines
Thu 19/611:00LHR - SYD
1 stop23h 35mMalaysia Airlines
Deal found 25/3$1,506
Mon 28/715:00SYD - LHR
1 stop33h 45mSingapore Airlines
Tue 19/811:25LHR - SYD
1 stop33h 30mSingapore Airlines
Deal found 25/3$1,541
Wed 1/1018:05SYD - LGW
1 stop45h 20mSingapore Airlines
Tue 28/1009:20LGW - SYD
1 stop39h 30mSingapore Airlines
Deal found 25/3$1,556

Cheapflights Fare Finder

Locate flights to London 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 26 March 2025.
Use the filters below to find and compare flights to London that are best for you.

Fly from

Sydney

Route

Depart

Return

Price

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Mon 2/6

20:30-18:40

1 stop31h 10m

London Heathrow

Mon 16/6

21:20-09:00

1 stop26h 40m

$1,417

SydneyLondon

SYD - LGW

SYDLGW

Sydney Kingsford Smith

Tue 13/5

11:00-06:40

1 stop28h 40m

London Gatwick

Sat 31/5

18:00-07:40

2 stops28h 40m

$1,422

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Fri 23/5

21:45-19:00

1 stop30h 15m

London Heathrow

Fri 20/6

22:10-08:25

1 stop25h 15m

$1,429

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Thu 1/5

19:40-20:30

1 stop33h 50m

London Heathrow

Thu 29/5

20:25-14:50

1 stop33h 25m

$1,430

SydneyLondon

SYD - STN

SYDSTN

Sydney Kingsford Smith

Sat 10/5

12:50-16:15

2 stops36h 25m

London Stansted

Thu 15/5

08:00-19:30

2 stops50h 30m

$1,440

SydneyLondon

SYD - LGW

SYDLGW

Sydney Kingsford Smith

Thu 15/5

06:00-06:40

2 stops33h 40m

London Gatwick

Tue 27/5

18:00-07:40

2 stops28h 40m

$1,448

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Thu 1/5

21:00-19:30

2 stops31h 30m

London Heathrow

Thu 29/5

22:40-14:50

1 stop31h 10m

$1,470

SydneyLondon

SYD - LGW

SYDLGW

Sydney Kingsford Smith

Tue 19/8

19:40-06:35

1 stop43h 55m

London Gatwick

Tue 16/9

12:35-14:50

1 stop41h 15m

$1,478

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Fri 9/5

22:10-16:35

1 stop27h 25m

London Heathrow

Thu 19/6

11:00-19:35

1 stop23h 35m

$1,506

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Mon 28/7

15:00-15:45

1 stop33h 45m

London Heathrow

Tue 19/8

11:25-05:55

1 stop33h 30m

$1,541

Flights are sorted by cheapest return flights first.

Deals found on 25/3

Showing 1-10 of 46 results
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Best time to book a flight to London

Have a flexible travel schedule? Discover the best time to fly to London 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 to London

When is the best time to book a flight to London?

Use this chart to determine the optimal time to book a return flight from Sydney to London. Price data was last updated on 21 March 2025.

The price you pay for your flight to London may vary depending on when you book. For the best chance of a lower fare, look to book 62 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 London?

On average, a flight from Sydney to London takes 26 hours 16 minutes. Flights to London 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 London?

Use this chart to determine the cheapest time to fly return from Sydney to London. Price data was last updated on 16 December 2024.

Users looking for the lowest fares to London should consider flying on Saturday evenings, when prices are typically cheapest. Budget-minded travellers will want to avoid Wednesday at midday, when prices are usually at their highest.

What are the most popular airlines that fly to London?

The most popular airlines flying from Sydney to London are Singapore Airlines, Cathay Pacific and Qantas Airways.

Singapore Airlines

Singapore Airlines

From $984

Cathay Pacific

Cathay Pacific

From $926

Qantas Airways

Qantas Airways

From $1,194

Etihad Airways

Etihad Airways

From $843

What are the cheapest airlines that fly to London?

The cheapest airlines flying from Sydney to London are Virgin Australia, Air China and China Southern.

Rainfall in London by month

Plan your trip to London by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in London 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 London when rainfall is around 40.0 mm.

Temperature in London by month

Plan your trip to London by taking into account the average temperature totals by month.

If weather is an important factor for your trip to London, 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 London

Get insights into the airlines that provide service to London. 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 London. Reviews last updated 26 March 2025.
Read reviews from past customers who have flown Korean Air, Japan Airlines and ANA to London. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very Good
1,049 reviews
Check prices

Food

8.1

Boarding

8.5

Crew

8.7

Entertainment

8.2

Comfort

8.3

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Korean Air
8.4
Very Good
1,049 reviews
Korean Air
8.4
Very Good
1,049 reviews
Check prices

Food

8.1

Boarding

8.5

Crew

8.7

Entertainment

8.2

Comfort

8.3

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Japan Airlines
8.3
Very Good
1,440 reviews
Korean Air
8.4
Very Good
1,049 reviews
Check prices

Food

8.1

Boarding

8.5

Crew

8.7

Entertainment

8.2

Comfort

8.3

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
ANA
8.3
Very Good
828 reviews
Korean Air
8.4
Very Good
1,049 reviews
Check prices

Food

8.1

Boarding

8.5

Crew

8.7

Entertainment

8.2

Comfort

8.3

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
China Airlines
8.2
Very Good
722 reviews
Korean Air
8.4
Very Good
1,049 reviews
Check prices

Food

8.1

Boarding

8.5

Crew

8.7

Entertainment

8.2

Comfort

8.3

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Singapore Airlines
8.1
Very Good
1,284 reviews
Korean Air
8.4
Very Good
1,049 reviews
Check prices

Food

8.1

Boarding

8.5

Crew

8.7

Entertainment

8.2

Comfort

8.3

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

FAQs about flying to London

Getting around London

How to find your way around London

Finding an address in London is no small task. There’s no pattern to the street names; house numbers, when they exist, run in odds and evens, clockwise and counter clockwise. You may also want to download or buy a detailed street map with an index either before or after your flight to London

  • Can I find cheaper flights to London if I am willing to have stopovers?

    Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to London on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to London?

    Based on reviews from Cheapflights users, Hainan Airlines is rated the highest out of the airlines that fly to London.

  • What is the cheapest airport to fly to in London?

    London Gatwick is currently the cheapest airport to fly to in London. One-way flights to London Gatwick typically cost $25, while return flights cost around $39.

  • How much is a return flight to London?

    A return flight to London will typically cost around $1,364, however they can be found for as little as $99.

  • Where does the fastest flight to London depart from?

    For those looking to save time traveling to London, Perth offers the quickest one-way flight (17 hours 30 minutes).

  • Does London Heathrow have car hire?

    Yes. Those touching down at London Heathrow can take advantage of the car hire services offered upon their arrival.

  • Are there hotels close to London Heathrow?

    Yes. London Heathrow has hotels nearby for those requiring accommodations. Aerotel London Heathrow, Terminal 2 & Terminal 3 is the closest property to London Heathrow (0.0 km away from London Heathrow).

See more FAQs

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Gatwick
Hounslow
Southall
Chatham
Dover
Dorking
Canterbury
Andover
Hayes
Horley

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Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights to London for you. Better yet — we are completely free to use.

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Yes, we can. To see specific flights to London with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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Yes! Start tracking prices for London flights today and get alerted when prices change. To subscribe and begin receiving alerts, click the bell icon next to the flight deals above and provide your email address.

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