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Seats Frog guide

United Airlines Boeing 787-9 seat map

United's own seat map for this Boeing 787-9 shows 257 seats: 48 Polaris, 21 Premium Plus and 188 Economy.

Version 1, 257 seats✓ Checked against United Airlines's seat map · October 2026

Cabins at a glance

  • Business

    United Polaris business class

    48seats · 1-2-1

    Lie-flat bed · 20.5" wide · 78" bed · rows 1–12

    Best pick: rows 2–7 and 10–12, seats A and LSet back from the aisle, so it is more private

  • Premium Economy

    United Premium Plus

    21seats · 2-3-2

    Recliner · 38" pitch · 19" wide · rows 20–22

    Least bad: row 20, seats A, C, D, E, F, J and LBulkhead row, so nobody reclines into you

  • Economy

    United Economy

    188seats · 3-3-3

    Recliner · 31" pitch · 17.3" wide · rows 30–57

    Best pick: rows 31–33, seats A, B, C, J, K and LUnited Economy Plus: about 34" of pitch, against 31" in Economy

Seat map

Green seats are good, amber are a trade-off, red are best avoided. Hover over or tap a seat to see why.

Front of aircraft

Closet

United Polaris business class

1-2-1 · Lie-flat bed · 20.5" wide

1
Bulkhead
2
3
4
5
6
7
8
Galley
×2
Galley
9
Exit
10
11
12

United Premium Plus

2-3-2 · Recliner · 38" pitch · 19" wide

20
Bulkhead
21
22

United Economy

3-3-3 · Recliner · 31" pitch · 17.3" wide

30
Bulkhead
31
32
33
34
35
Galley
Lavatory
LavatoryGalley
Lavatory
42
Exit
43
44
Bassinet
45
46
47
48
49
50
51
52
53
54
55
56
57
Galley
Galley

Back of aircraft

Seat map updated October 2026. Rows and seats are as United Airlines's own seat map shows them. Airlines change layouts and swap aircraft, so check the seat map in your booking too.

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Cabins

CabinSeatsRowsLayoutSeatPitchWidthReclineBedWi-Fi
United Polaris business class
481–121-2-1Lie-flat bed—20.5 in—78 inYes
United Premium Plus
2120–222-3-2Recliner38 in19 in6 in—Yes
United Economy
18830–573-3-3Recliner31 in17.3 in3 in—Yes

Best and worst seats

Best seats

  • Rows 2–7 and 10–12, seats A and L · United Polaris business class

    Set back from the aisle, so it is more private

  • Rows 31–33, seats A, B, C, J, K and L · United Economy

    United Economy Plus: about 34" of pitch, against 31" in Economy

  • Row 34, seats A, B and C · United Economy

    United Economy Plus: about 34" of pitch, against 31" in Economy

  • Row 44, seats D, E and F · United Economy

    United Economy Plus: about 34" of pitch, against 31" in Economy

Trade-offs

  • Row 1, seats A, D, F and L · United Polaris business class

    Bulkhead row, so nobody reclines into you

  • Row 8, seats A and L · United Polaris business class

    Set back from the aisle, so it is more private

  • Row 9, seats A, D, F and L · United Polaris business class

    Exit row with extra legroom

  • Row 20, seats A, C, D, E, F, J and L · United Premium Plus

    Bulkhead row, so nobody reclines into you

  • Row 30, seats A, B, C, D, E, F, J, K and L · United Economy

    Bulkhead row, so nobody reclines into you

  • Row 42, seats A, B, C, J, K and L · United Economy

    Exit row with extra legroom

Seats to avoid

  • Row 8, seats D and F · United Polaris business class

    Next to a galley, with light and noise during service

  • Row 35, seats A, B, C, D, E, F, J, K and L · United Economy

    Next to a lavatory, with queues, noise and flushing

  • Row 57, seats D, E and F · United Economy

    Next to a galley, with light and noise during service

Quick answers

How many seats does United Airlines's Boeing 787-9 (Version 1, 257 seats) have?

United Airlines's Boeing 787-9 (Version 1, 257 seats) has 257 seats: 48 in United Polaris business class, 21 in United Premium Plus and 188 in United Economy.

What are the best Economy seats on United Airlines's Boeing 787-9 (Version 1, 257 seats)?

On United Airlines's Boeing 787-9 (Version 1, 257 seats), the best Economy seats are rows 31–33, seats A, B, C, J, K and L (united Economy Plus: about 34" of pitch, against 31" in Economy), row 34, seats A, B and C (united Economy Plus: about 34" of pitch, against 31" in Economy) and row 44, seats D, E and F (united Economy Plus: about 34" of pitch, against 31" in Economy).

Which seats should I avoid on United Airlines's Boeing 787-9 (Version 1, 257 seats)?

On United Airlines's Boeing 787-9 (Version 1, 257 seats), avoid row 8, seats D and F (next to a galley, with light and noise during service), row 35, seats A, B, C, D, E, F, J, K and L (next to a lavatory, with queues, noise and flushing) and row 57, seats D, E and F (next to a galley, with light and noise during service).

What is United Polaris business class like on United Airlines's Boeing 787-9 (Version 1, 257 seats)?

United Polaris business class on United Airlines's Boeing 787-9 (Version 1, 257 seats) has 48 seats, rows 1 to 12, in a 1-2-1 layout, 20.5-inch-wide seats (lie-flat bed). The pick: rows 2–7 and 10–12, seats A and L (set back from the aisle, so it is more private).

What is United Premium Plus like on United Airlines's Boeing 787-9 (Version 1, 257 seats)?

United Premium Plus on United Airlines's Boeing 787-9 (Version 1, 257 seats) has 21 seats, rows 20 to 22, in a 2-3-2 layout, 38-inch pitch, 19-inch-wide seats (recliner).

How much legroom is there in Economy on United Airlines's Boeing 787-9 (Version 1, 257 seats)?

Economy on United Airlines's Boeing 787-9 (Version 1, 257 seats) has about 31 inches of seat pitch and seats about 17.3 inches wide, in a 3-3-3 layout. Exit rows and bulkheads have more legroom.

Read on

Seats Frog compiles seat maps from what airlines publish about their cabins and rates the seats with the same rules on every aircraft. Spotted a wrong row? Tell us and we'll correct it.