Boeing 777-300ER

Technical Specifications

• Total seats: 396 typical configuration
• Range: 13,650 km / 8,482 mi
• Cruise speed: 905 km/h
• Wingspan: 65 m
• Length: 74 m
• Engines: 2× GE90-115B

Cabin Features

• Economy seat pitch: 31–32 in (79–81 cm)
• In-flight Wi-Fi: Available on most configurations
• Power outlets: AC/USB available
• Lie-flat beds: Available in premium cabins

Seat Selection Overview

The Boeing 777-300ER is the workhorse of long-haul international aviation, flown by Delta, United, Emirates, Qatar, and dozens of others. Its 3-4-3 economy layout (10 across) is notably tighter than the 3-3-3 on the A350 or 787 — seat selection matters enormously on the 777.

Best Seats on the 777-300ER

• Economy window seats A & K (avoid center 4-pack entirely): On the 777's 3-4-3 layout, the center section has 4 seats across (D-E-F-G). Seats A and K give you a window, a wall to lean against, and only one neighbor. Never choose center seats on a 777 for a long-haul flight.
• Aisle seats C & H (outer aisles): The 777-300ER has two aisles. Seat C and H are aisle seats in the window sections (3-seat groups), giving you freedom of movement with only one neighbor instead of the center section's two.
• Exit row seats: Exit rows on the 777-300ER offer 38–43 in of pitch. Worth checking — they're among the most valuable economy seats on any long-haul flight.

Seats to Avoid on the 777-300ER

• Center section seats D, E, F, G: The center 4-pack is the worst seating arrangement in commercial aviation — you're surrounded by passengers on both sides with no window and no direct aisle access. Seat E and F require climbing over multiple passengers to reach the aisle.
• Rear galley proximity rows (last 4–5 rows): On a 14-hour transpacific flight, being 3 rows from the rear galley means constant noise and foot traffic. The 777's rear cabin can also experience more turbulence at altitude.

Pro Tips

• Emirates' 777-300ER business class (the QSuite competitor) is an iconic product — 2-2-2 layout that converts to a fully flat bed. Emirates also has an onboard bar in the rear of business class.
• If you're stuck in center economy on a 777-300ER, request the aisle seat (D or G) rather than the middle (E or F) — at least you can get up without disturbing others.
• Some airlines configure the 777-300ER with just 9-across economy (3-3-3) — this is a significant comfort upgrade. Check AirlineSeatGuide.com's seat map for your specific airline's configuration.
• United's Polaris business class on the 777-300ER uses a 1-2-1 layout — every seat has direct aisle access. Worth checking for upgrade availability.

Range & Performance

The Boeing 777-300ER has a range of about 13,650 km (7,370 nautical miles), enough to fly nonstop between nearly any two major cities on the same side of the globe and many ultra-long routes across it. Its twin GE90-115B engines — the most powerful jet engines ever certified — give it the thrust to take off at maximum weight from high-demand hubs while still delivering strong fuel economy per seat thanks to its 396-seat capacity in dense configurations. That combination of range and capacity is why the 777-300ER remains the backbone of many airlines' long-haul fleets even as newer composite widebodies enter service.

Airlines Operating the 777-300ER

4 airline seat maps available for the Boeing 777-300ER.

• Delta Air Lines — View Seat Map
• Emirates — View Seat Map
• Qatar Airways — View Seat Map
• United Airlines — View Seat Map

Airlines Flying the 777-300ER

Emirates operates the largest 777-300ER fleet in the world by a wide margin, using it as the backbone of its Dubai hub-and-spoke network to six continents. Qatar Airways, Korean Air, and United also fly large 777-300ER fleets on long-haul routes, while Delta uses it on select ultra-long-haul routes like Atlanta–Johannesburg. Other major operators include Cathay Pacific, ANA, Turkish Airlines, and Air France. Because the aircraft is so widely deployed, it's one of the most common widebodies travelers will encounter on any long-haul international itinerary.

Common Routes

The 777-300ER's range and capacity make it the go-to aircraft for high-demand long-haul and ultra-long-haul routes. Emirates flies it on nearly every route from Dubai, including Dubai–Los Angeles and Dubai–Auckland. United uses it on San Francisco–Singapore and Newark–Hong Kong, Qatar Airways on Doha–Houston, and Delta on Atlanta–Johannesburg — one of the longest scheduled flights from the US. If your itinerary includes a nonstop flight of 14+ hours on a major international carrier, there's a good chance it's operated by a 777-300ER.

History

Boeing developed the 777-300ER (Extended Range) as an answer to the Airbus A340-600, stretching the original 777-300 and fitting it with more powerful GE90-115B engines, a strengthened wing, and additional fuel capacity. It made its first flight in February 2003 and entered commercial service with Air France in 2004. The 777-300ER quickly became one of the best-selling widebody aircraft in history, prized by airlines for its ability to carry large passenger loads over very long distances at a lower cost per seat than a four-engine jumbo jet. More than 800 have been delivered, and it remains in continuous production alongside the newer 777X family, cementing its role as the workhorse of global long-haul aviation well into the 2020s and beyond.

Frequently Asked Questions