Singapore to Seattle (SIN-SEA): nonstop flights and award space

Singapore Airlines flies the SIN to SEA nonstop about 5 times a week. In the timetable below it flies as SQ 28, scheduled at 14h 10m to 14h 25m for the 8,065 miles. 2LNR tracks award seats on Singapore Airlines across every SIN to SEA date, so you can see whether a seat exists before you move points.

Schedule last confirmed . Departure times come from 2LNR's schedule data; confirm with the airline before you book.

Updated .

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5
Flights a week, 4-week average
14h 10m to 14h 25m
Scheduled flight time
8,065 mi
Nonstop distance
Free
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Singapore to Seattle flight schedule

Scheduled nonstop departures for SIN to SEA starting October 23, 2026, last checked against our schedule feed on October 18, 2026. Airlines retime and cancel flights, so confirm with the airline before you book.

Schedule data dated .

Scheduled nonstop departures from Singapore (SIN) to Seattle (SEA)
Date Flight Airline Departs SIN Arrives SEA Duration Aircraft
SQ 28Singapore Airlines09:0008:2514h 25mAirbus A350-900
SQ 28Singapore Airlines09:0008:2514h 25mAirbus A350-900
SQ 28Singapore Airlines08:5508:0514h 10mAirbus A350-900
SQ 28Singapore Airlines08:5508:0514h 10mAirbus A350-900
SQ 28Singapore Airlines08:5508:0514h 10mAirbus A350-900
SQ 28Singapore Airlines08:5508:0514h 10mAirbus A350-900
SQ 28Singapore Airlines08:5508:0514h 10mAirbus A350-900

Showing all 7 scheduled SIN to SEA departures across 7 days with service, starting October 23, 2026. Later dates are on the interactive map.

Departure and arrival times are local at their own airport, so an arrival can fall on a different local date than the departure; the duration column is the true elapsed flying time. A dash means the airline hasn't filed that value in the schedule data we hold. Aircraft are the equipment the airline filed, named where the code pins down one type and shown as the family or the bare code where it doesn't. Swaps can happen up to departure.

See every SIN to SEA date on the interactive map

Aircraft on the Singapore to Seattle nonstop

Singapore Airlines flies the Airbus A350-900 on every departure in the schedule table on this page. Each linked aircraft page shows where that airline schedules it. Airlines can swap aircraft up to departure.

Award seats on SIN to SEA departures

2LNR tracks award seats on Singapore Airlines, date by date. Open the calendar for Singapore to Seattle to see whether a seat exists before you move points, the next 14 days free on every product and the full horizon on Pro.

See real availability

Award seats by date on the SIN to SEA departures 2LNR tracks, checked against live inventory so you know what's open before you book.

Set an alert

Premium inventory turns over fast. Watch this route on Pro and 2LNR notifies you when space appears on a date you're tracking.

Plan on the map

See SIN to SEA on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Singapore to Seattle nonstop

Carriers operating SIN to SEA nonstop in the current schedule. Where 2LNR tracks the carrier, its departures show award space by date.

See SIN to SEA on the interactive map →

Frequently asked questions about SIN to SEA

How long is the flight from Singapore (SIN) to Seattle (SEA)?
Scheduled flight times from Singapore (SIN) to Seattle (SEA) run from 14h 10m to 14h 25m across the departures in the schedule table on this page. The nonstop covers about 8,065 miles, and airlines adjust scheduled times by season, so confirm with the airline before you book.
Which airlines fly nonstop from SIN to SEA?
Singapore Airlines is currently the only airline flying SIN to SEA nonstop. 2LNR tracks award seats on Singapore Airlines.
How many flights a week are there from SIN to SEA?
About 5 nonstop flights a week run between Singapore (SIN) and Seattle (SEA) in the current schedule, operated by Singapore Airlines. Frequency shifts by season, and the schedule table on this page shows what is scheduled next.
What time do flights from SIN to SEA depart?
Scheduled SIN to SEA nonstops in the next 7 days with service leave between 08:55 and 09:00, local time at Singapore. The schedule table on this page lists every departure by date, with its arrival time and aircraft.
Which flights operate SIN to SEA nonstop?
Singapore Airlines flies SQ 28 nonstop from Singapore (SIN) to Seattle (SEA), the only flight number in the schedule table on this page. The table lists each date with its departure and arrival times and aircraft.
How do I check award availability on SIN to SEA?
Open the SIN to SEA route on the interactive map or the matrix to see award seats by date on Singapore Airlines, the next 14 days free and the full horizon on Pro. On Pro you can also set an alert on the route and 2LNR notifies you when space opens.

See SIN to SEA award space by date

See what's open by date on this route, the next 14 days free on every product and the full horizon on Pro.

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