Singapore to Seattle (SIN–SEA) — Airlines, Schedules & Connections
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No nonstop flights on this route. connecting options below.
SIN–SEA is served by 1 airline with nonstop service. Singapore Airlines leads the route. The flight covers 8,065 miles in approximately 14h 10m. Beyond nonstop, 21 hubs offer 1-stop connections.
Airline Landscape
| Airline | Freq/wk | Aircraft | Duration | Dep OTP | Alliance | Codeshares |
|---|---|---|---|---|---|---|
| SQ Singapore Airlines | 5 | 359 | 14h10 | – | Star Alliance | – |
Weekly Schedule Pattern
Connection Landscape
On-Time Performance
Travel Essentials
SIN: +08 · SEA: MDT
When it's 6:00 PM in Singapore, it's 4:00 AM in Seattle.
Singapore is part of the US Visa Waiver Program. Singaporean passport holders can enter the United States for up to 90 days without a visa, but must obtain an approved ESTA (Electronic System for Travel Authorization) before boarding. Apply at the official CBP site. ESTA costs USD 21, is valid for 2 years, and covers multiple entries. Passport must be valid for at least 6 months beyond the planned stay. The 90-day limit cannot be extended, and overstaying voids future ESTA eligibility.
MRT East West Line (Changi Airport branch) connects the airport to the city in 30–45 minutes from City Hall or Raffles Place (S$2.20–2.50 with EZ-Link). Trains run from 5:31am to 11:18pm (T1/T2/T3). Terminal 4 is served by a dedicated shuttle bus from T2.Taxis from Orchard Road cost S$20–35 and take 20–30 minutes. Grab is widely used and slightly cheaper. Airport surcharges apply for taxis departing from the city to the airport (S$3–5 depending on peak hours). The trip is short; Singapore's island geography keeps distances manageable.
Link Light Rail from the airport station (inside the terminal) to downtown Seattle takes 38 minutes ($3.50). No transfers needed; trains run 5am to 1am daily.Taxis and ride-shares to downtown cost $35–55. For Bellevue and Eastside destinations (across Lake Washington), ride-share is faster than Link. Car rentals are in the consolidated rental facility; take the free shuttle from baggage claim. Sound Transit buses serve Tacoma, Renton, and Federal Way.
Marine west coast climate. Winters are mild but persistently grey and rainy (3–9°C). Snow is rare at sea level but can occur December through February, causing significant disruptions when it does. The airport sits between Seattle and Tacoma in an area that receives more fog and low cloud than downtown Seattle.
Summers are famously pleasant (18–25°C) with low humidity and mostly clear skies, one of the best flying climates in the US from June through September. The wettest months are November through January.
SIN–SEA Quick Facts
Frequently Asked Questions
Flights from SIN to SEA
Singapore Changi Airport (SIN) and Seattle–Tacoma International Airport (SEA) are connected by nonstop service from Singapore Airlines. With 5 weekly departures, this is a regularly served route.
SIN to SEA Flight Duration and Schedule
Nonstop flight time from SIN to SEA ranges from 14 hours 10 minutes. The route covers a distance of 8,065 miles (12,979 km). There are approximately 5 weekly flights outbound and 5 return, totaling 10 flights per week in both directions.
Connecting Options and Alternatives
21 one-stop connections are available, with the fastest taking approximately 19 hours via NRT. Two-stop connections are also available via intermediate hubs.