SIN to SEA Route Guide
Singapore, Singapore → Seattle, United States
Quick answer
WSSS (Singapore, Singapore) to KSEA (Seattle, United States) is a 7,008 NM (12,979 km / 8,065 mi) great-circle route with an initial bearing of 33° (NNE). Typical cruise altitude FL410, expected flight time 15h 6m, common aircraft: Boeing 777-300ER, Airbus A350-1000, Boeing 787-10.
Distance
7,008 NM
12,979 km / 8,065 mi
Initial Bearing
33° (NNE)
True heading at departure
Typical Cruise
FL410
41,000 ft
Block Time
15h 6m
Typical jet, no wind correction
Fuel Estimate
22,524 kg
Single-aisle equivalent + reserve
Departure Elevation
22 ft
WSSS
Arrival Elevation
433 ft
KSEA
What aircraft fly this route?
For a 7,008 NM mission, operators typically deploy:
- Boeing 777-300ER
- Airbus A350-1000
- Boeing 787-10
- Airbus A380
Weather considerations
Pilots flying SIN-SEA should brief METARs and TAFs at both ends, plus any en-route SIGMETs. On this long-range mission, plan for an alternate within fuel reserves and review oceanic / NAT track procedures if applicable.
Frequently asked questions
What is the distance between SIN and SEA?
7,008 nautical miles (12,979 km / 8,065 statute miles) great-circle.
How long is the flight from Singapore to Seattle?
Approximately 15h 6m block-to-block for a typical commercial jet, depending on aircraft type and winds.
What aircraft typically fly SIN-SEA?
Common types include Boeing 777-300ER, Airbus A350-1000, Boeing 787-10, Airbus A380 depending on operator and demand.
What altitude do flights cruise at?
Most flights at this distance cruise around FL410 (41,000 ft), though winds and traffic affect filed altitude.
What initial heading is the route?
33° true (NNE). Track varies along the route due to great-circle curvature.
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