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$639+ Cheap flights to the United Kingdom

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 25/5. Fares are subject to change and may not be available on all flights or dates of travel.
— LHR
17 Apr — 24 Apr1
1 adult

Flights to United Kingdom in 2025

Find the latest flights to United Kingdom 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 12 April 2025.

Return from

$1,462

One-way from

$639

Popular in

December

Cheapest in

October

Average price

$1,980

Good round-trip deal

$2,090 or less

Good one-way deal

$1,469 or less
China Eastern
  • China Eastern
  • 25/5-29/5
  • 2 total stops
  • 57h 40m total
  • Sydney to London
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Air China
  • Air China
  • 25/5
  • 1 total stop
  • 31h 05m total
  • Sydney to United Kingdom
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Highest demand for flights based on searches. 11% potential increase in price ($430 potential increase over avg. return price).
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Cheapest flight prices on average. 3% potential price decrease ($109 potential savings vs. average return price).
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Average for return flights in April 2025
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Price to beat on a round-trip flight from Sydney Kingsford Smith to United Kingdom.
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Price to beat on a one-way flight from Sydney Kingsford Smith to United Kingdom.
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Find flights to United Kingdom

Browse one-way and return flights deals to the United Kingdom on Cheapflights. Flight deals are based on user searches and were last updated on 12 April 2025
Explore the United Kingdom
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Find flight deals to United Kingdom

Cheapest flights to United Kingdom
Explore the most affordable flight options available to United Kingdom. Find the lowest fares based on data from user searches, with prices last updated on 12 April 2025.

Sun 25/520:30SYD - LGW
1 stop27h 40mChina Eastern
Thu 29/518:00LGW - SYD
1 stop30h 00mChina Eastern
Deal found 11/4$1,462
Sun 11/520:30SYD - LHR
1 stop31h 10mChina Eastern
Thu 15/521:20LHR - SYD
3 stops50h 10mChina Eastern
Deal found 11/4$1,463
Sun 31/819:40SYD - LHR
2 stops57h 35mAir China
Sun 14/920:25LHR - SYD
1 stop33h 25mAir China
Deal found 11/4$1,478
Thu 16/1021:00SYD - LHR
2 stops32h 30mMultiple Airlines
Fri 7/1117:40LHR - SYD
1 stop34h 50mMultiple Airlines
Deal found 11/4$1,479
Sun 26/1022:05SYD - LGW
2 stops28h 55mTurkish Airlines
Sat 1/1105:55LGW - SYD
2 stops26h 50mTurkish Airlines
Deal found 11/4$1,491
Thu 22/511:40SYD - LGW
2 stops44h 45mMultiple Airlines
Wed 28/508:55LGW - SYD
3 stops40h 15mMultiple Airlines
Deal found 11/4$1,492

Cheapflights Fare Finder

Locate flights to United Kingdom 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 12 April 2025.
Use the filters below to find and compare flights to the United Kingdom that are best for you.

Fly from

Sydney

Route

Depart

Return

Price

SydneyLondon

SYD - LGW

SYDLGW

Sydney Kingsford Smith

Sat 24/5

11:00-16:00

1 stop38h 00m

London Gatwick

Sat 7/6

18:00-12:35

1 stop33h 35m

$1,462

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Sun 11/5

20:30-18:40

1 stop31h 10m

London Heathrow

Thu 15/5

21:20-08:30

3 stops50h 10m

$1,463

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Sun 31/8

19:40-20:15

2 stops57h 35m

London Heathrow

Sun 14/9

20:25-14:50

1 stop33h 25m

$1,478

SydneyLondon

SYD - LGW

SYDLGW

Sydney Kingsford Smith

Sun 25/5

12:50-15:50

2 stops36h 00m

London Gatwick

Sun 1/6

07:10-19:30

2 stops51h 20m

$1,489

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Sat 24/5

19:40-17:45

1 stop31h 05m

London Heathrow

Mon 16/6

20:25-18:55

2 stops37h 30m

$1,505

SydneyLondon

SYD - LGW

SYDLGW

Sydney Kingsford Smith

Wed 8/10

21:55-16:15

2 stops28h 20m

London Gatwick

Tue 21/10

14:00-20:00

2 stops44h 00m

$1,511

SydneyLondon

SYD - LGW

SYDLGW

Sydney Kingsford Smith

Thu 5/6

19:40-06:35

1 stop43h 55m

London Gatwick

Tue 9/9

12:35-14:50

1 stop41h 15m

$1,513

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Thu 5/6

21:00-19:30

2 stops31h 30m

London Heathrow

Mon 9/6

22:00-14:15

2 stops55h 15m

$1,548

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Mon 26/5

22:10-16:30

1 stop27h 20m

London Heathrow

Fri 30/5

21:10-10:45

1 stop28h 35m

$1,599

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Sun 25/5

20:55-09:50

2 stops45h 55m

London Heathrow

Thu 29/5

06:30-19:00

2 stops27h 30m

$1,607

Flights are sorted by cheapest return flights first.

Deals found on 11/4

Showing 1-10 of 60 results
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Best time to book a flight to United Kingdom

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

How long is the flight to United Kingdom?

On average, a flight from Sydney to United Kingdom takes 31 hours 7 minutes. Flights to United Kingdom 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 United Kingdom?

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

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

Weekly flight availability to United Kingdom

The most flights from Sydney to United Kingdom 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 United Kingdom?

The most popular airlines flying from Sydney to United Kingdom are Singapore Airlines, China Eastern and Emirates.

Singapore Airlines

Singapore Airlines

From $938

China Eastern

China Eastern

From $809

Emirates

Emirates

From $1,041

British Airways

British Airways

From $1,054

What are the cheapest airlines that fly to United Kingdom?

The cheapest airlines flying from Sydney to United Kingdom are Hainan Airlines, Virgin Australia and Sichuan Airlines.

Rainfall in United Kingdom by month

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

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

Temperature in United Kingdom by month

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

If weather is an important factor for your trip to United Kingdom, 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 are the most popular places to fly to in United Kingdom?

Destination popularity is based on the amount of flight searches to United Kingdom in the last few years. This data was updated on 12 April 2025.
The most popular places in United Kingdom to fly to are England and Scotland.

Reviews of airlines servicing United Kingdom

Get insights into the airlines that provide service to United Kingdom. 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 United Kingdom. Reviews last updated 12 April 2025.
To help decide which airline to fly to United Kingdom, see what other customers have to say about Japan Airlines, ANA and China Airlines. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Japan Airlines
8.3
Very Good
1,440 reviews
Check prices

Overall

8.3

Food

7.7

Crew

8.7

Entertainment

7.8

Boarding

8.4

Comfort

8.2

Reviews

1 / 20
8.0
Excellent

Diego,Nov 2024

HKG - NRT

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!
Japan Airlines
8.3
Very Good
1,440 reviews
Japan Airlines
8.3
Very Good
1,440 reviews
Check prices

Overall

8.3

Food

7.7

Crew

8.7

Entertainment

7.8

Boarding

8.4

Comfort

8.2

Reviews

1 / 20
8.0
Excellent

Diego,Nov 2024

HKG - NRT

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!
ANA
8.3
Very Good
837 reviews
Japan Airlines
8.3
Very Good
1,440 reviews
Check prices

Overall

8.3

Food

7.7

Crew

8.7

Entertainment

7.8

Boarding

8.4

Comfort

8.2

Reviews

1 / 20
8.0
Excellent

Diego,Nov 2024

HKG - NRT

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!
China Airlines
8.2
Very Good
729 reviews
Japan Airlines
8.3
Very Good
1,440 reviews
Check prices

Overall

8.3

Food

7.7

Crew

8.7

Entertainment

7.8

Boarding

8.4

Comfort

8.2

Reviews

1 / 20
8.0
Excellent

Diego,Nov 2024

HKG - NRT

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!
Hainan Airlines
8.1
Very Good
37 reviews
Japan Airlines
8.3
Very Good
1,440 reviews
Check prices

Overall

8.3

Food

7.7

Crew

8.7

Entertainment

7.8

Boarding

8.4

Comfort

8.2

Reviews

1 / 20
8.0
Excellent

Diego,Nov 2024

HKG - NRT

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!
Singapore Airlines
8.1
Very Good
1,288 reviews
Japan Airlines
8.3
Very Good
1,440 reviews
Check prices

Overall

8.3

Food

7.7

Crew

8.7

Entertainment

7.8

Boarding

8.4

Comfort

8.2

Reviews

1 / 20
8.0
Excellent

Diego,Nov 2024

HKG - NRT

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!

FAQs about flying to United Kingdom

  • Can I find cheaper flights to United Kingdom 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 United Kingdom on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to United Kingdom?

    Based on reviews from Cheapflights users, Beijing Capital Airlines is rated the highest out of the airlines that fly to United Kingdom.

  • What is the cheapest airport to fly to in United Kingdom?

    Bristol is currently the cheapest airport to fly to in United Kingdom. One-way flights to Bristol typically cost $19, while return flights cost around $39.

  • How much is a return flight to United Kingdom?

    A return flight to United Kingdom will typically cost around $792, however they can be found for as little as $99.

  • Where does the fastest flight to United Kingdom depart from?

    For those looking to save time traveling to United Kingdom, 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

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Why should you use Cheapflights to find cheap flight tickets to United Kingdom?

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