Hong Kong (HKG) to Seattle (SEA)
Flight time
≈ 13h 47m
Bearing
34° NE
Hong Kong (HKG) to Seattle (SEA) is 6,488 miles (10,442 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies HKG–SEA
Filed traffic dataIn May 2026, Cathay Pacific was the only carrier flying nonstop HKG–SEA; the Airbus A350-900 was the most common aircraft at 100% of departures; flights ran 92% full.
Departures
42
May 2026
Seats
11,760
both directions
Passengers
10,820
both directions
Load factor
92.0%
RPM ÷ ASM
Who flies HKG–SEA?
Cathay Pacific was the only carrier to fly nonstop HKG–SEA in May 2026 (42 departures).
- CX
Cathay Pacific
42 departures · 11,760 seats
Share of departures100.0%92.0%
Load
What plane flies HKG–SEA?
In May 2026, the Airbus A350-900 flew 100% of HKG–SEA departures.
- Airbus A350-900
42 departures · 92.0% load
100.0%
How has HKG–SEA traffic changed?
Nonstop HKG–SEA departures rose from 1 in February 2026 to 42 in May 2026.
Monthly nonstop HKG–SEA traffic, trailing 12 months through May 2026. Bars scale to the busiest month; months with no filed service show as zero.
February 2026
1 departures · 287 passengers
85.9%
Load
March 2026
4 departures · 1,099 passengers
98.1%
Load
April 2026
44 departures · 11,408 passengers
92.6%
Load
May 2026
42 departures · 10,820 passengers
92.0%
Load
By direction
Each direction is filed separately — they rarely match.
HKG → SEA
89.9% full
21 departures · 5,284 passengers
SEA → HKG
94.2% full
21 departures · 5,536 passengers
Nonstop HKG–SEA traffic has been filed since 2026.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through May 2026; filings from 2026. Public domain (US Government work).
The airports
Hong Kong
HK
Hong Kong International Airport
Coordinates
22.31°N, 113.91°E
Hemisphere
N · E
Frequently asked
How far is Hong Kong (HKG) from Seattle (SEA)?
HKG to SEA is 6,488 miles (10,442 km / 5,638 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from HKG to SEA?
A nonstop covers the 6,488-mile great-circle distance in roughly 13h 47m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies HKG–SEA?
In May 2026, the Airbus A350-900 flew the largest share of departures (100.0%).
What mileage do I earn flying HKG–SEA?
Distance-based programs credit off the 6,488-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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