Boeing 777-300er (B77W)
i
ICAO B77W Heavy

Boeing 777-300er

Twin Jet· 51 globally registered

The Boeing 777-300ER is the world's most successful long-range widebody twin, a stretched ultra-long-haul variant that redefined intercontinental aviation when it entered service in 2004. With a maximum range of 7,370 nautical miles and seating for 350-400 passengers in typical three-class layouts, the 777-300ER became the backbone of long-haul fleets worldwide, effectively replacing aging 747-400s on routes where four engines were no longer economically justified. Its GE90-115B engines are the most powerful jet engines ever mounted on a commercial aircraft, each producing up to 115,000 pounds of thrust and enabling the type to operate from high-altitude airports and carry full payloads across the Pacific. Boeing designed the 777-300ER with a maximum takeoff weight of 775,000 pounds and a service ceiling of 43,100 feet, giving it exceptional flexibility for nonstop city pairs like Los Angeles to Melbourne or New York to Hong Kong. The type's advanced fly-by-wire system, composite materials in the empennage and floor beams, and sophisticated avionics made it one of the most reliable widebodies in service, with dispatch reliability consistently above 99 percent. Airlines valued its commonality with the shorter 777-200ER, allowing pilots to operate both variants on a single type rating, and its lower seat-mile costs compared to the 747 or A340 made it the preferred choice for premium long-haul routes. The 777-300ER dominated the ultra-long-haul market for nearly two decades until the arrival of the 787 and A350, but it remains in widespread service with major carriers who prize its proven economics and passenger appeal. Its cruise speed of Mach 0.84 and maximum operating speed of Mach 0.89 keep block times competitive, while its spacious cabin cross-section, the widest of any twin-aisle jet at 231 inches, offers a comfortable passenger experience on fifteen-hour sectors. SkyMeter has tracked 6,425 flights across 713 airframes and 7 operators, with Air Canada the largest observed operator.

ACTIVE AIRFRAMES
713
last 7 days
🏢
OPERATORS
7
unique airlines
📊
FLIGHTS
6,425
tracked
AVG DURATION
5h 45m
per flight
INCIDENT RATE
0.2%
10 flagged

Safety in context

The incident rate counts flights with ANY safety event detected by SkyMeter: go-arounds (a routine response, not a failure), unstable-approach gate flags (advisory thresholds), rejected takeoffs (the system working as designed), and runway events. It is NOT an accident rate or fatality rate. For accident statistics, refer to the NTSB Aviation Accident Database (USA) or the Aviation Safety Network. See methodology for what each event type measures.

Performance

Speed envelope & approach

Vref
149 kt
Vref range
Vmo
330 kt
Mmo
0.89
Vs0 (landing)
118 kt
Vfe
255 kt
Approach category
D

Dimensions

Airframe geometry

Wingspan
213 ft
Length
242 ft
Tail height
62 ft
Wheelbase
102 ft
Gear width
42 ft
Wake category
Heavy

Weight & identification

Operating limits

MTOW
775,000 lb
MALW
554,000 lb
Manufacturer model
Boeing 777-300ER
FAA designator
B77W
Registered
51

Recent incidents

Flagged flights of B77W

20
07/19/2026
2h 12m
» Overspeed
07/19/2026
3h 21m
△ Low approach-stability score
07/18/2026
3h 17m
» Overspeed
07/17/2026
1h 48m
» Overspeed
07/17/2026
10h 20m
△ Low approach-stability score
07/17/2026
4h 13m
⭍ Upset⤓ Emergency descent
07/16/2026
6h 57m
» Overspeed
07/16/2026
10h 58m
↻ Go-around
07/15/2026
20m
✕ Rejected takeoff
07/15/2026
1h 14m
△ Low approach-stability score

Recent flights

Real flights of B77W · airborne ≥ 20 min

30
07/19/2026
21m
No alerts
07/19/2026
28m
No alerts
07/19/2026
37m
No alerts
07/19/2026
39m
No alerts
07/19/2026
39m
No alerts
07/19/2026
22m
No alerts
07/19/2026
41m
No alerts
07/19/2026
40m
No alerts
07/19/2026
49m
No alerts
07/19/2026
24m
No alerts
07/19/2026
49m
No alerts
07/19/2026
20m
No alerts
07/19/2026
52m
No alerts
07/19/2026
33m
No alerts
07/19/2026
55m
No alerts
07/19/2026
57m
No alerts
07/19/2026
34m
No alerts
07/19/2026
58m
No alerts
07/19/2026
59m
No alerts
07/19/2026
43m
No alerts
07/19/2026
1h 2m
No alerts
07/19/2026
58m
No alerts
07/19/2026
52m
No alerts
07/19/2026
43m
No alerts
07/19/2026
1h 9m
No alerts
07/19/2026
44m
No alerts
07/19/2026
54m
No alerts
07/19/2026
1h 5m
No alerts
07/19/2026
1h 13m
No alerts
07/19/2026
1h 4m
No alerts
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© SkyMeter · All flight data subject to ODbL attribution · Tracking window: 7 days (free tier)