What aircraft does CX252 use?

Cathay Pacific flight CX252 operates on a Boeing 777-300ER from LHR to HKG.

How long is the CX252 flight?

The estimated flight time for CX252 from LHR to HKG is approximately 12h 32m covering 9,631 km (5,984 miles).

How many seats does this Boeing 777-300ER have?

This Cathay Pacific Boeing 777-300ER has 294 total seats across 4 cabin classes: First, Business, Premium Economy, Economy.

What cabin classes are available on this aircraft?

This Boeing 777-300ER offers 4 cabin classes: First, Business, Premium Economy, Economy. Seat distribution: 6 First seats, 53 Business seats, 34 Premium Economy seats, 201 Economy seats.

What route does CX252 fly?

Cathay Pacific flight CX252 operates from LHR (London Heathrow Airport) to HKG (Hong Kong International Airport), connecting London and Hong Kong.

How do I choose the best seat?

The best seat depends on your priorities. For extra legroom, choose seats near emergency exits or bulkhead rows. For quick boarding/deplaning, select seats near the front. Avoid seats near lavatories or galleys if you prefer a quieter flight. Window seats offer views and a wall to lean against, while aisle seats provide easier access to move around.

What do the different seat colors mean?

Green seats are typically available for selection, red seats are occupied or blocked, yellow/orange seats may have restrictions or extra fees, and blue seats often indicate premium or preferred seating with additional charges. Hover over any seat to see specific details and pricing.

Can I change my seat after booking?

Yes, most airlines allow seat changes after booking, though fees may apply depending on your fare type and desired seat. You can typically change seats through the airline's website, mobile app, or by calling customer service. Some seats become available closer to departure as the airline releases blocked inventory.

When is the best time to select seats?

The best time varies by strategy. Book immediately after purchasing your ticket for the widest selection, or wait until 24 hours before departure when airlines often release blocked premium seats. For popular routes, early selection is recommended. Our seat alerts can notify you when preferred seats become available.

Are the seat maps updated in real-time?

Our flight seat maps are updated regularly throughout the day to reflect current availability. However, seat availability can change rapidly, especially close to departure. We recommend checking the airline's official website for the most up-to-date information when making your final selection.

What if my preferred seat isn't available?

You can also check back periodically as seats often open up closer to departure when other passengers make changes or when the airline releases additional inventory.

CX252 Seat Map

● On time

Cathay Pacific · Boeing 777-300ER · Sun, 21 Jun 2026

Depart

LHR · London

12h 32m

5,984 mi

Arrive

HKG · Hong Kong

+ Seat alert

F · First

1/6

J · Business

5/53

W · Premium Economy

1/34

Y · Economy

46/201

Filter:

First Business Premium Economy Economy Extra legroom / exit Occupied Blocked

View:

First · Business · Premium · Economy · Rows 1–72

100%

Pinch to zoom • Double-tap to zoom in

First

Business

Premium Economy

Economy

First

Business

Premium Economy

Economy

11A

39A

11D

39C

11G

30D

30E

39D

11K

30F

39E

30G

39F

39G

12A

31A

40A

31C

40B

12D

40C

12G

31D

31E

40D

12K

31F

40E

31G

40F

40G

40H

40J

40K

1A

32A

41A

32C

41B

1D

41C

32D

1K

32E

41D

32F

41E

32G

41F

41G

32H

32K

41H

41J

41K

2A

33A

42A

33C

42B

2D

42C

33D

2K

33E

42D

33F

42E

33G

42F

42G

33H

33K

42H

42J

42K

34A

43A

34C

43B

43C

34D

34E

43D

34F

43E

34G

43F

43G

34H

34K

43H

43J

43K

15A

44A

44B

44C

44D

44E

44F

44G

44H

44J

44K

16A

45A

45B

16D

45C

16G

45D

16K

45E

45F

45G

45H

45J

45K

17A

17D

17G

46D

17K

46E

46F

46G

46H

46J

46K

18A

18D

18G

18K

19A

19D

19G

19K

20A

59A

59B

20D

59C

20G

20K

59H

59J

59K

21A

60A

60B

21D

60C

21G

60D

21K

60E

60F

60G

60H

60J

60K

22A

61A

61B

22D

61C

22G

61D

22K

61E

61F

61G

61H

61J

61K

23A

62A

62B

23D

62C

23G

62D

23K

62E

62F

62G

62H

62J

62K

24A

63A

63B

24D

63C

24G

63D

24K

63E

63F

63G

63H

63J

63K

25A

64A

64B

25D

64C

25G

64D

25K

64E

64F

64G

64H

64J

64K

26A

65A

65B

26D

65C

26G

65D

26K

65E

65F

65G

65H

65J

65K

66A

66B

66C

66D

66E

66F

66G

66H

66J

66K

67A

67B

67C

67D

67E

67F

67G

67H

67J

67K

68A

68B

68C

68D

68E

68F

68G

68H

68J

68K

69A

69B

69C

69D

69E

69G

69H

69J

69K

70A

70B

70C

70D

70E

70G

70H

70J

70K

71A

71B

71C

71D

71E

71G

71H

71J

71K

72A

72C

72D

72E

72G

Get seat alerts

Top picks · Business

Highest-scoring available seats on this aircraft

11D

Score 63 #1

Easy aisle access · Front of cabin (faster service)

Aisle Business

11G

Score 63 #2

Easy aisle access · Front of cabin (faster service)

Aisle Business

61G

Score 63 #3

Easy aisle access · Front of cabin (faster service)

Aisle

40K

Score 63 #4

Window view · Front of cabin (faster service)

Window

Get Seat Alerts

CX252 Flight Details

Flight Number: CX252

Origin:

(London Heathrow Airport, London)

Destination:

(Hong Kong International Airport, Hong Kong)

Distance: 9,631 km (5,984 mi)

Est. Duration: 12h 32m

Flight Date: June 21, 2026

Aircraft: Boeing 777-300ER

Airline Routes: View Cathay Pacific route map

Award Availability: Check award seats on AwardTravelFinder

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Flight Route Map

Explore More Routes:

View flights from LHR View flights to HKG View Cathay Pacific route map

Aircraft Configuration

Aircraft Details

Seating info & configuration

Airline: Cathay Pacific (CX)
Aircraft: Boeing 777-300ER
Seating: Main Deck: 294 seats

Economy: 201

46 147 8

23% Available

Premium Economy: 34

1 27 6

3% Available

Business: 53

5 40 8

9% Available

First: 6

1 5 0

17% Available
Legend: Seat Status

Blocked

Occupied

Standard

Cabin Classes

First

Business

Premium Economy

Economy

Extra legroom / exit

Features

Exit door

WC Lavatory

GALLEY Galley

CREW Crew area

Cathay Pacific Boeing 777-300ER seat map layout for flight CX252 from LHR to HKG — Reference layout

This Boeing 777-300ER operates Cathay Pacific flight CX252 from London (LHR) to Hong Kong (HKG). Browse the interactive seat map above to find the best seats for your journey, view real passenger reviews, and explore detailed cabin configurations to make an informed decision for your flight.

Best Seats on CX252

Based on legroom, location, and passenger preferences

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Best Window Seats

Seat 40K Economy
Seat 70K Economy
Seat 72A Economy

Best Aisle Seats

Seat 11D Business
Seat 11G Business
Seat 61G Economy

Quietest Seats

Seat 70K Economy
Seat 70H Economy
Seat 70G Economy

Recommendations based on seat characteristics, cabin position, and proximity to facilities. Availability may vary by date.

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Seat Selection Assistance

Seat Alerts Require Payment

Seat alerts are available to users with a paid plan or credits. This feature monitors seat availability and notifies you when your preferred seats become available.

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