China Southern 737-800 Seat Selection Guide (2026)

The letters: A B C on the left, H J K on the right

China Southern letters the 737-800 economy cabin A B C | H J K. The window pair is A and K, the middles are B and J, and the aisle seats are C and H. There is no D, E, F or L anywhere on the aircraft.

If you fly both major Chinese carriers this is worth pinning down, because they do it differently on the identical aeroplane. China Southern is A B C | H J K. China Eastern is A B C | J K L. The window seat on the right-hand side is K on one and L on the other, and a seat number carried over from one booking to the other will land you somewhere you did not intend — or nowhere at all.

Business, where fitted, is 2-2 lettered A C | H K.

The version lottery: five cabins, and one that is unlike the rest

Fleet records rank the 178-seat layout as far the largest sub-fleet, followed by the 172-seat one, then the 186-seat, the 161-seat and the 169-seat. The underlying figures are not a dependable aircraft count so we are not turning them into odds, but the ordering is worth having: plan for the 178-seat cabin.

The 186-seat jet is the one to look out for

It is the outlier in two ways, and both of them show up on a seat map before you book.

First, it has no Business cabin at all. Every one of its 186 seats is an economy seat, and there is no forward cabin, no blocked middle and no curtain. It is the densest 737-800 China Southern flies.

Second, its row numbers skip a block. The cabin runs from row 31 to row 43, then jumps straight to row 49 and continues to 66. Rows 44 to 48 do not exist. If a booking engine shows you an aircraft with nothing available in the mid-forties, that is not a full flight — those rows are simply not there.

There is one thing it does better than the other four. Row 31, the forward bulkhead, has genuine extra legroom on all six seats rather than the tighter-than-usual bulkhead note that every other China Southern 737-800 carries. If you are on the 186-seat jet, row 31 is worth having; on any of the other four it is not.

The trap: the first exit row is the wrong one

The same structure appears on all five configurations. There are two overwing exit rows next to each other, both with the extra space, and only the second of the pair keeps its recline — the exit behind the first one has to stay clear. The ordinary row immediately ahead of the pair loses its recline too.

On the 178-seat, 172-seat and 169-seat jets the row to book is 43. On the 161-seat jet it is 41. On the all-economy 186-seat jet it is 50. On every one of the five, that row is rated green across all six seats.

The 178-seat jet sharpens the trap the same way China Eastern’s 176-seat jet does: extra legroom is recorded on both exit rows, 42 and 43, so a booking map offers you either as an extra-space seat and only one of them reclines. The 186-seat jet does the same at rows 49 and 50.

On the 172-seat and 169-seat jets no extra legroom is recorded at the exits at all — rows 41 and 42 both carry the recline warning and row 43 is simply the clean one behind them.

Row 31: tighter than a bulkhead on four of the five

On the 178, 172, 169 and 161-seat jets, row 31 is rated amber across all six seats and has less legroom than a typical bulkhead, with no underseat storage. It is the first row of economy, it looks like the front of the cabin, and it is not the space you think you are buying.

The 186-seat jet is the exception, as above: extra legroom on all six seats of row 31.

Business, where there is any

Four of the five configurations carry a Business cabin and three of those are a single row of four seats — row 1, A C | H K. All four seats get extra legroom at the bulkhead. The 161-seat jet has two rows and eight seats.

There is not much to choose between them. A and K are the window seats and C and H the aisles; on the 161-seat jet, row 2 is amber across all four seats where row 1 is not, so row 1 is the pick.

Economy: the rows worth booking

Row 34, on two of the five

On the 178-seat and 161-seat jets, row 34 is rated green across all six seats — a mid-cabin row with well-aligned windows at A and K and nothing recorded against any seat in it. That is unusual and it is worth knowing, because it gives you a green row without exit-row conditions: you keep your underseat storage during taxi and takeoff and you keep your recline.

On both of those jets, rows 32 and 33 are mostly green too, with the exception of the A and K window seats, where the window sits out of line.

The window seats

The green A/K pairs sit at rows 37, 50 and 52 on the 178-seat jet; 35 and 54 on the 172-seat one; 34, 37, 57, 59 and 61 on the 186-seat jet; 35 and 54 on the 169-seat one; and 32, 33, 34 and 52 on the 161-seat jet.

38A on the 178-seat jet and 36A on the 161-seat jet have no window at all — wall only. Both are sold as ordinary window seats and they are the only two confirmed windowless seats across the five configurations.

The back of the cabin

The last two rows on every configuration are rated red, with a lavatory immediately behind and no recline at all in the final row. On the 169-seat and 161-seat jets the final row is narrower still — 58H, 58J and 58K and 56H, 56J and 56K respectively, three seats on the right-hand side only, because the left-hand side is taken up by the lavatory.

On the 161-seat jet the lavatory arrangement is asymmetric further forward too: 54A, 54B and 54C sit against a lavatory on the left while 54H, 54J and 54K sit in queuing traffic, and rows 54 and 55 between them carry twelve problem seats.

Quick-pick summary

FAQ

Why do China Southern and China Eastern letter the same aircraft differently?

Both skip some letters on a six-abreast 737, but they skip different ones. China Southern uses A B C | H J K; China Eastern uses A B C | J K L. Neither uses the D E F that most of the rest of the world does. The cabins are otherwise the same shape — only the labels differ — but a seat number does not carry between the two airlines.

How do I tell which of the five I am on?

Read the last row number in economy: 59 is the 178-seat jet, 58 the 172-seat or 169-seat one, 66 the all-economy 186-seat jet, and 56 the 161-seat one. To separate the 172 and 169-seat jets, look at the final row — the 169-seat jet ends with a three-seat row, 58H/58J/58K, and the 172-seat one ends with a full six. If there is no Business cabin at all, it is the 186-seat jet.

Which exit row should I book?

The second of the pair, on every configuration. That is row 43 on the 178, 172 and 169-seat jets, row 41 on the 161-seat jet and row 50 on the 186-seat one. The first exit row has the same space and does not fully recline.

Is the 186-seat all-economy jet worse?

It is the densest of the five and it has no Business cabin, but for an economy passenger it is not the worst draw. It is the only China Southern 737-800 whose forward bulkhead at row 31 has genuine extra legroom rather than a tighter-than-usual one, and neither of its two windowless seats exists on this configuration. Just be aware that rows 44 to 48 do not exist, so the cabin is shorter than the row numbers suggest.

Is there Wi-Fi or seatback entertainment?

Neither is recorded on any of the five configurations. Bring a charged device and expect to be offline.

Which seats have no window?

38A on the 178-seat jet and 36A on the 161-seat jet. Both are recorded as wall only and both sell as ordinary window seats. Elsewhere the worst you get is a window set behind the seat, which means leaning back rather than looking at a wall.