JetLagPlanner

Flight time: Los Angeles to Beijing

Los Angeles International Airport (LAX) → Beijing Capital International Airport (PEK) · long haul · transpacific westbound

The flight from Los Angeles (LAX) to Beijing (PEK) takes approximately 11h 39m to 13h 04m gate-to-gate, covering 10,036 km (6,236 mi). This long-haul transpacific westbound route uses a cruise speed of 820–900 km/h with 30–50 minutes of ground and air overhead.

Estimated Gate-to-Gate Flight Time
11h 39m13h 04m
Distance: 10,036 km (6,236 mi) · long haul
Key Facts
Route:
Los Angeles (LAX) → Beijing (PEK)
Distance:
10,036 km (6,236 mi)
Flight time:
11h 39m to 13h 04m gate-to-gate
Route type:
long-haul, transpacific westbound
Cruise speed:
820–900 km/h
Ground overhead:
30–50 minutes included
Over water:
Yes — oceanic routing
Origin:
Los Angeles International Airport, United States (America/Los_Angeles)
Destination:
Beijing Capital International Airport, China (Asia/Shanghai)
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Route details

OriginLos Angeles, United States (LAX)
DestinationBeijing, China (PEK)
Distance10,036 km (6,236 mi)
Flight time (low)11h 39m
Flight time (high)13h 04m
Route typelong-haul, transpacific westbound
Cruise speed820–900 km/h
Ground overhead30–50 minutes
Over waterYes — oceanic routing
Time difference+16h (eastbound)

Distance breakdown: Los Angeles to Beijing

The 10,036-km great-circle distance between Los Angeles (33.94°N, 118.41°W) and Beijing (40.08°N, 116.60°E) spans 6.1° of latitude and 235.0° of longitude, trending primarily east. In miles, this is 6,236 mi or 5419 nautical miles. The great-circle path — the shortest distance over Earth's curved surface — is calculated using the Haversine formula from the two airports' precise coordinates.

Cruise speed and flight phases

On this 10,036-km long-haul route, aircraft spend the majority of the 11h 39m to 13h 04m journey at optimal cruise altitude of 35,000–42,000 feet, where modern wide-body jets achieve true airspeeds of 820–900 km/h (Mach 0.82–0.86). The initial climb and final descent represent a smaller fraction of total flight time compared to shorter routes. Aircraft like the Boeing 777, 787, or Airbus A350 typically operate routes of this distance, with step climbs during the flight to reach progressively more efficient altitudes as fuel burns off and the aircraft lightens.

Ground time and routing overhead

Our 30–50 minutes overhead allowance covers: taxi-out at LAX, takeoff and initial climb, descent and approach at PEK, and taxi-in to the gate. LAX is a major international hub where taxi times of 15–25 minutes are common during peak periods. At PEK, arrival taxi and gate assignment can add 10–20 minutes, especially during busy arrival banks. Oceanic tracks between Los Angeles and Beijing follow organized route systems (like the North Atlantic Track system) that may add 5–10% to the theoretical great-circle distance. These tracks are assigned daily based on forecast winds.

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Return flight: BeijingLos Angeles

The return flight from Beijing to Los Angeles differs noticeably in duration due to upper-atmosphere wind patterns along this oceanic corridor. The jet stream — a high-altitude river of fast-moving air flowing generally from west to east — creates an asymmetry: the eastbound leg (Los Angeles to Beijing if eastbound, otherwise Beijing to Los Angeles) is typically 20–60 minutes shorter. Airlines adjust fuel loads and even routing to account for this, sometimes flying more southerly or northerly tracks on the headwind leg to minimize the impact. Over a year, the average time difference between the two directions on this specific route is estimated at 30–45 minutes.

View BeijingLos Angeles flight time details

Seasonal variation in flight times

Pacific routes between Los Angeles and Beijing experience significant seasonal variation. The Pacific jet stream can exceed 350 km/h in winter at altitudes around 30,000–40,000 feet, creating flight time differentials of over 1 hour between eastbound and westbound legs. During typhoon season (June–November), routing diversions in the western Pacific may add distance. Winter storms in the North Pacific can also cause turbulence-related route adjustments. The most stable and predictable flight times on this corridor occur in spring (March–May) and autumn (September–November).

Airport information

Los Angeles International Airport (LAX) is a major international hub in Los Angeles, United States. As a tier-1 airport, it handles high traffic volumes, which means longer average taxi times but also higher flight frequency and competition that can benefit travelers on pricing. Beijing Capital International Airport (PEK) is a major international hub in Beijing, China. As a tier-1 airport, it handles high traffic volumes, which means longer average taxi times but also higher flight frequency and competition that can benefit travelers on pricing.

Flight times from Los Angeles to other destinations

Flight time FAQ: Los Angeles to Beijing

How long is the flight from Los Angeles to Beijing?
The estimated gate-to-gate flight time from Los Angeles (LAX) to Beijing (PEK) is 11h 39m to 13h 04m, covering a great-circle distance of 10,036 km (6,236 mi). This estimate includes taxi, takeoff, cruise at 820–900 km/h, descent, and taxi to the gate.
How is the Los Angeles–Beijing flight time calculated?
We use the Haversine formula to compute the great-circle distance between the precise coordinates of LAX and PEK. This 10,036-km distance is divided by long-haul cruise speed assumptions (820–900 km/h), and 30–50 minutes is added for ground operations and non-cruise phases. The result is a realistic gate-to-gate range, not the airline's scheduled block time.
Is the return flight from Beijing to Los Angeles the same duration?
No — the return flight typically differs by 20–60 minutes due to jet stream wind patterns. The eastbound (outbound) leg benefits from tailwinds, while the return reverses this effect. Over oceanic routes, this asymmetry is significant and seasonal.
What factors make this flight shorter or longer than estimated?
Key variables: (1) Aircraft type — newer jets cruise faster. (2) Wind — jet stream can add/subtract 30–60 min on this oceanic route. (3) Routing — air traffic may assign paths longer than the great-circle. (4) Airport congestion — taxi times at LAX and PEK vary by time of day. (5) Weather — diversions and holding patterns can add significant time.
Does the Los Angeles–Beijing flight time change by season?
Yes, noticeably. Winter jet streams create the largest outbound/return differential. Summer has more moderate winds but more turbulence-related routing diversions. Spring and autumn are most predictable. Total seasonal variation can be 30–60+ minutes on this oceanic route.
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