International route
Cheap flights from Singapore to Seattle
Singapore Changi Airport (SIN) to Seattle-Tacoma International Airport (SEA). 8,064 miles, 15h 20m nonstop.
SIN to SEA at a glance
Computed from airline schedules and the fares we track for this route. Refreshed several times a day.
- Distance
- 8,064 milesgreat-circle
- Typical flight time
- 15h 20mnonstop, gate to gate
- Nonstop airlines
- ASSQ2 airlinesAlaska, Singapore
- Nonstop flights per day
- 2all airlines combined
- Cheapest month
- January 2027over the next six months
- Best day to fly
- Tuesday19% less than Friday
- Time difference
- 15h behindSeattle vs Singapore
Singapore to Seattle
Round trips from $658
Per traveler, taxes and fees included. Lowest fare we found departs Tue, Jan 5.
Cheapest month: January 2027
See fares on these datesLock any fare free — pay only when you accept your last-minute deal
Or ask an agent on WhatsAppSingapore to Seattle fares by month
Lowest round-trip economy fare per traveler in each of the next six months, taxes and fees included. Select a month to search that date.
Airlines flying Singapore to Seattle
2 airlines fly nonstop with 2 departures a day combined, plus 21 more with one stop.
- ASAlaska AirlinesoneworldNonstop · 1 flight a day · first checked bag from $35
- SQSingapore AirlinesStar AllianceNonstop · 1 flight a day · first checked bag included
- EIAer LingusConnecting via DUB · first checked bag from $70
- ACAir CanadaStar AllianceConnecting via YVR, YYC · first checked bag from $35
- AIAir IndiaStar AllianceConnecting via BOM · first checked bag included
- NHANA All Nippon AirwaysStar AllianceConnecting via HND, NRT · first checked bag included
- OZAsiana AirlinesStar AllianceConnecting via ICN · first checked bag included
- BABritish AirwaysoneworldConnecting via LHR · first checked bag from $75
- CXCathay PacificoneworldConnecting via HKG · first checked bag included
- CIChina AirlinesSkyTeamConnecting via TPE · first checked bag included
- BREVA AirStar AllianceConnecting via TPE · first checked bag included
- JLJapan AirlinesoneworldConnecting via HND, NRT, KIX · first checked bag included
- KLKLM Royal Dutch AirlinesSkyTeamConnecting via AMS · first checked bag from $75
- KEKorean AirSkyTeamConnecting via ICN · first checked bag included
- LHLufthansaStar AllianceConnecting via MUC · first checked bag from $75
- NONorse Atlantic AirwaysLow-costConnecting via OSL · first checked bag from $80
- QFQantasoneworldConnecting via SYD · first checked bag included
- SKSAS Scandinavian AirlinesSkyTeamConnecting via CPH, ARN, OSL · first checked bag from $70
- LXSWISSStar AllianceConnecting via ZRH · first checked bag from $75
- TPTAP Air PortugalStar AllianceConnecting via OPO · first checked bag from $70
- TKTurkish AirlinesStar AllianceConnecting via IST · first checked bag from $70
- VSVirgin AtlanticSkyTeamConnecting via MAN · first checked bag from $75
- Y4VolarisLow-costConnecting via TIJ · first checked bag from $45
Connecting options
Hubs where one airline can carry you on both legs, most choices first.
- Oslo (OSL)SKNO2 airlines
- Tokyo (HND)JLNH2 airlines
- Tokyo (NRT)JLNH2 airlines
- Seoul (ICN)KEOZ2 airlines
- Taipei (TPE)BRCI2 airlines
Tips for this route
- Only Alaska and Singapore fly this route nonstop, which keeps nonstop fares firm. A one-stop itinerary through OSL or HND is usually cheaper if you can spare the extra three to five hours.
- January 2027 is the cheapest month to fly over the next six months, with round trips from $658; September 2026 is the most expensive at $894 and up, a difference of $236 per traveler.
- Departing on a Tuesday averages 19% less than a Friday on this route. If your dates are flexible, shift the outbound by a day or two and check the calendar view before you book.
- Book 2 to 5 months ahead for the best fares; long-haul seats sell out earliest for summer and holiday travel.
- Seattle is 15 hours behind Singapore. A morning departure lands in Seattle with most of the day left; an evening flight arrives close to local dinner time.
Destination guide
Seattle: Coffee, mountains and Puget Sound
Seattle is the Pacific Northwest's gateway: Pike Place Market, the Space Needle and ferries across Puget Sound, with Mount Rainier and the Olympic Peninsula a couple of hours away. Sea-Tac is a Delta and Alaska hub with light rail downtown.
Best time to visit: July–September is dry, sunny and gorgeous — and the most expensive. May–June and late September are good compromises. October–April is gray and drizzly but cheap.
Flying the other way? Seattle to SingaporeFares, airlines and tips for SEA to SIN.Ready to compare live fares?
See every airline on SIN–SEA side by side with bags and seat rules spelled out.
Search Singapore to SeattleSingapore to Seattle: common questions
How long is the flight from Singapore to Seattle?
A nonstop flight from Singapore (SIN) to Seattle (SEA) takes about 15h 20m gate to gate, covering 8,064 miles. Connecting itineraries add the layover, typically 2 to 5 hours more in total.
Which airlines fly nonstop from SIN to SEA?
Alaska Airlines and Singapore Airlines operate nonstop flights from Singapore (SIN) to Seattle (SEA), with 2 nonstop departures a day between them. One-stop options connect through OSL, HND and NRT.
What is the cheapest month to fly from Singapore to Seattle?
Over the next six months, January 2027 has the lowest round-trip fares from Singapore (SIN) to Seattle (SEA), starting at $658 per traveler including taxes and fees. Within any month, Tuesday departures average the lowest prices.
How far in advance should I book Singapore to Seattle flights?
Book 2 to 5 months ahead for the best fares; long-haul seats sell out earliest for summer and holiday travel. Air1 Tickets includes free cancellation within 24 hours of booking on every fare, so you can lock in a good price and keep looking.
What is the time difference between Singapore and Seattle?
Seattle is 15 hours behind Singapore. SIN is on Asia/Singapore time and SEA on America/Los Angeles time. Departure and arrival times in search results are always shown in local time at each airport.
Related routes
Other popular city pairs from the same departure city and to the same destination, with the lowest round-trip fares we found.