United Airlines Boeing 777-300ER seat map
United's own seat map for this Boeing 777-300ER shows 350 seats: 60 Polaris, 24 Premium Plus and 266 Economy. United Polaris business class runs from row 1 to 18 in a 1-2-1 layout. United Premium Plus runs from row 20 to 22 in a 2-4-2 layout. United Economy runs from row 30 to 58 in a 3-4-3 layout. Rows 9, 30 and 45, behind the mid-cabin exits, have the extra legroom of an exit row.
AI-generated illustration by Seats Frog. Representative aircraft profile; details may vary.
Cabins at a glance
Business
United Polaris business class
60seats · 1-2-1
Lie-flat bed · 22" wide · 78" bed · rows 1–18
Best pick: rows 2–7, 10–12 and 15–18, seats A and LSet back from the aisle, so it is more private
Premium Economy
United Premium Plus
24seats · 2-4-2
Recliner · 38" pitch · 18.5" wide · rows 20–22
Least bad: row 20, seats A, B, D, E, F, G, K and LBulkhead row, so nobody reclines into you
Economy
United Economy
266seats · 3-4-3
Recliner · 31" pitch · 17.05" wide · rows 30–58
Best pick: rows 31–33, seats A, B, C, D, E, F, G, 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.
Window spacing is illustrative; marked gaps and misalignments come from the seat notes.
No window warnings recorded for this layout.
↑ Front of aircraft
United Polaris business class
1-2-1 ·
United Premium Plus
2-4-2 · 38″ pitch
United Economy
3-4-3 · 31″ pitch
Back of aircraft
777-300ER proportions · 73.86 m long × 6.2 m wide. Nose and tail shortened for display; cabin and window positions are schematic.
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.
Embed this seat map on your site
How it worksCabins
| Cabin | Seats | Rows | Layout | Seat | Pitch | Width | Recline | Bed | Wi-Fi |
|---|---|---|---|---|---|---|---|---|---|
United Polaris business class | 60 | 1–18 | 1-2-1 | Lie-flat bed | — | 22 in | — | 78 in | Yes |
United Premium Plus | 24 | 20–22 | 2-4-2 | Recliner | 38 in | 18.5 in | 6 in | — | Yes |
United Economy | 266 | 30–58 | 3-4-3 | Recliner | 31 in | 17.05 in | 3 in | — | Yes |
Best and worst seats
Best seats
- Rows 2–7, 10–12 and 15–18, seats A and L · United Polaris business class
Set back from the aisle, so it is more private
- Row 9, seats D and G · United Polaris business class
Exit row with extra legroom
- Rows 31–33, seats A, B, C, D, E, F, G, J, K and L · United Economy
United Economy Plus: about 34" of pitch, against 31" in Economy
- Rows 34–35, seats A, B, C, J, K and L · United Economy
United Economy Plus: about 34" of pitch, against 31" in Economy
- Row 46, seats D, E, F and G · United Economy
United Economy Plus: about 34" of pitch, against 31" in Economy
Trade-offs
- Row 1, seats A, D, G 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 and L · United Polaris business class
Exit row with extra legroom
- Row 20, seats A, B, D, E, F, G, K and L · United Premium Plus
Bulkhead row, so nobody reclines into you
- Row 30, seats A, B, C, D, E, F, G, J, K and L · United Economy
Bulkhead row, so nobody reclines into you
- Row 45, seats A, B, C, J, K and L · United Economy
Exit row with extra legroom
Seats to avoid
- Row 6, seats D and G · United Polaris business class
Next to a galley, with light and noise during service
- Row 22, seats D, E, F and G · United Premium Plus
Next to a lavatory, with queues, noise and flushing
- Row 43, seats A, B, C, J, K and L · United Economy
Next to a lavatory, with queues, noise and flushing
- Rows 43 and 58, seats D, E, F and G · United Economy
Next to a galley, with light and noise during service
- Row 57, seats A, B, K and L · United Economy
Next to a lavatory, with queues, noise and flushing
Quick answers
How many seats does United Airlines's Boeing 777-300ER (350 seats) have?
United Airlines's Boeing 777-300ER (350 seats) has 350 seats: 60 in United Polaris business class, 24 in United Premium Plus and 266 in United Economy.
What are the best Economy seats on United Airlines's Boeing 777-300ER (350 seats)?
On United Airlines's Boeing 777-300ER (350 seats), the best Economy seats are rows 31–33, seats A, B, C, D, E, F, G, J, K and L (united Economy Plus: about 34" of pitch, against 31" in Economy), rows 34–35, seats A, B, C, J, K and L (united Economy Plus: about 34" of pitch, against 31" in Economy) and row 46, seats D, E, F and G (united Economy Plus: about 34" of pitch, against 31" in Economy).
Which seats should I avoid on United Airlines's Boeing 777-300ER (350 seats)?
On United Airlines's Boeing 777-300ER (350 seats), avoid row 6, seats D and G (next to a galley, with light and noise during service), row 22, seats D, E, F and G (next to a lavatory, with queues, noise and flushing) and row 43, seats A, B, C, J, K and L (next to a lavatory, with queues, noise and flushing).
What is United Polaris business class (rows 1–18) like on United Airlines's Boeing 777-300ER (350 seats)?
United Polaris business class on United Airlines's Boeing 777-300ER (350 seats) has 60 seats, rows 1 to 18, in a 1-2-1 layout, 22-inch-wide seats (lie-flat bed). The pick: rows 2–7, 10–12 and 15–18, seats A and L (set back from the aisle, so it is more private).
What is United Premium Plus (rows 20–22) like on United Airlines's Boeing 777-300ER (350 seats)?
United Premium Plus on United Airlines's Boeing 777-300ER (350 seats) has 24 seats, rows 20 to 22, in a 2-4-2 layout, 38-inch pitch, 18.5-inch-wide seats (recliner).
How much legroom is there in Economy on United Airlines's Boeing 777-300ER (350 seats)?
Economy on United Airlines's Boeing 777-300ER (350 seats) has about 31 inches of seat pitch and seats about 17.05 inches wide, in a 3-4-3 layout. Exit rows and bulkheads have more legroom.
Read on
- United Airlines Airbus A319-100 (126 seats) seat map
- United Airlines Airbus A320-200 (150 seats) seat map
- United Airlines Airbus A321neo (200 seats) seat map
- United Airlines Airbus A321XLR (150 seats) seat map
- United Airlines Boeing 737-700 (126 seats) seat map
- United Airlines Boeing 737-800 (Version 1, 166 seats) seat map
- United Airlines Boeing 737-800 (Version 2 diagram, 166 seats) seat map
- United Airlines Boeing 737-800 (Version 3, 166 seats) seat map
- United Airlines Boeing 737-900ER (Version 1, 179 seats) seat map
- United Airlines Boeing 737-900ER (Version 2, 179 seats) seat map
- United Airlines Boeing 737-900ER (Version 3, 179 seats) seat map
- United Airlines Boeing 737 MAX 9 (Version 1, 179 seats) seat map
- United Airlines Boeing 737 MAX 9 (Version 2, 179 seats) seat map
- United Airlines Boeing 757-200 (176 seats) seat map
- United Airlines Boeing 757-300 (234 seats) seat map
- United Airlines Boeing 767-300ER (Version 1, 167 seats) seat map
- United Airlines Boeing 767-300ER (Version 2, 203 seats) seat map
- United Airlines Boeing 767-400ER (231 seats) seat map
- United Airlines Boeing 777-200 (Domestic, 364 seats) seat map
- United Airlines Boeing 777-200ER (Version 1, 276 seats) seat map
- United Airlines Boeing 787-10 (318 seats) seat map
- United Airlines Boeing 787-8 (243 seats) seat map
- United Airlines Boeing 787-9 (Version 1, 257 seats) seat map
- Every United Airlines seat map
- United Airlines: ratings, hubs, lounges and fleet
- Compare Boeing 777-300ER layouts on Seats Frog
- Explore the Boeing 777-300ER range map
- Where United Airlines flies: route map
- United Airlines's own Boeing 777-300ER page
Lounge 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.