How many seats does this Airbus A350-900 have?

This Finnair Airbus A350-900 has 278 total seats across 3 cabin classes: Premium Economy, Economy, Business.

What cabin classes are available on this aircraft?

This Airbus A350-900 offers 3 cabin classes: Premium Economy, Economy, Business. Seat distribution: 24 Premium Economy seats, 211 Economy seats, 43 Business seats.

What route does AY143 fly?

Finnair flight AY143 operates from HEL (Helsinki Vantaa Airport) to BKK (Suvarnabhumi Airport), connecting Helsinki (Vantaa) and Bangkok.

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.

AY143 Seat Map HEL → BKK

Finnair Airbus A350-900 Oct 30, 2025

Filter:

Available Window Aisle Extra Legroom Occupied

View:

100%

Pinch to zoom • Double-tap to zoom in

Main Deck

Business Class

10A

10D

10H

10L

11A

11D

11H

11L

12A

12D

12H

12L

Premium Economy Class

21A

21C

21D

21E

21G

21H

21J

21L

22A

22C

22D

22E

22G

22H

22J

22L

23A

23C

23D

23E

23G

23H

23J

23L

Economy Class

31A

31B

31C

31D

31E

31H

31J

31K

31L

32A

32B

32C

32D

32E

32H

32J

32K

32L

33A

33B

33C

33D

33E

33H

33J

33K

33L

34A

34B

34C

34D

34E

34H

34J

34K

34L

35A

35B

35C

35D

35E

35H

35J

35K

35L

36A

36B

36C

36D

36E

36H

36J

36K

36L

37A

37B

37C

37D

37E

37H

37J

37K

37L

38A

38B

38C

38D

38E

38H

38J

38K

38L

39D

39E

39H

51B

51C

51D

51E

51H

51J

51K

52A

52B

52C

52D

52E

52H

52J

52K

52L

53A

53B

53C

53D

53E

53H

53J

53K

53L

54A

54B

54C

54D

54E

54H

54J

54K

54L

55A

55B

55C

55D

55E

55H

55J

55K

55L

56A

56B

56C

56D

56E

56H

56J

56K

56L

57A

57B

57C

57D

57E

57H

57J

57K

57L

58A

58B

58C

58D

58E

58H

58J

58K

58L

59A

59B

59C

59D

59E

59H

59J

59K

59L

60A

60B

60C

60D

60E

60H

60J

60K

60L

61A

61B

61C

61D

61E

61H

61J

61K

61L

62A

62B

62C

62D

62E

62H

62J

62K

62L

63A

63B

63C

63D

63E

63H

63J

63K

63L

64A

64B

64C

64D

64E

64H

64J

64K

64L

65A

65B

65C

65D

65E

65H

65J

65K

65L

66D

66E

66H

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AY143 Flight Details

Flight Number: AY143

Origin:

(Helsinki Vantaa Airport, Helsinki (Vantaa))

Destination:

(Suvarnabhumi Airport, Bangkok)

Flight Date: October 30, 2025

Aircraft: Airbus A350-900

Airline Routes: View Finnair route map

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Flight Route Map

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Aircraft Configuration

Aircraft Details

Seating info & configuration

Airline: Finnair (AY)
Aircraft: Airbus A350-900
Seating: Main Deck: 278 seats

Economy: 211

21 190 0

10% Available

Premium Economy: 24

3 21 0

13% Available

Business: 43

14 29 0

33% Available
Legend: Seat Status

Blocked

Occupied

Standard

Seat Types

Premium

Legroom

Window

Aisle

Features

EXIT Exit Row

LAV Lavatory

GAL Galley

CREW Crew

This Airbus A350-900 operates Finnair flight AY143 from Helsinki (Vantaa) (HEL) to Bangkok (BKK). 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 AY143

Based on legroom, location, and passenger preferences

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Best Window Seats

Seat 21A Premium Economy
Seat 36L Economy
Seat 55L Economy

Best Aisle Seats

Seat 1D Business
Seat 1H Business
Seat 35C Economy

Quietest Seats

Seat 21A Premium Economy
Seat 1D Business
Seat 1H Business

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

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.

Passenger Reviews for AY143

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Frequently Asked Questions

AY143 Finnair Seat Map from HEL to BKK - Airbus A350-900