International route
Cheap flights from Seattle to Hong Kong
Seattle-Tacoma International Airport (SEA) to Hong Kong International Airport (HKG). 6,488 miles, 13h 20m nonstop.
SEA to HKG at a glance
Computed from airline schedules and the fares we track for this route. Refreshed several times a day.
- Distance
- 6,488 milesgreat-circle
- Typical flight time
- 13h 20mnonstop, gate to gate
- Nonstop airlines
- DLASCX3 airlinesDelta, Alaska, Cathay Pacific
- Nonstop flights per day
- 3all airlines combined
- Cheapest month
- January 2027over the next six months
- Best day to fly
- Tuesday20% less than Friday
- Time difference
- 15h aheadHong Kong vs Seattle
Seattle to Hong Kong
Round trips from $476
Per traveler, taxes and fees included. Lowest fare we found departs Wed, Jan 6.
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 WhatsAppSeattle to Hong Kong 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 Seattle to Hong Kong
3 airlines fly nonstop with 3 departures a day combined, plus 14 more with one stop.
- ASAlaska AirlinesoneworldNonstop · 1 flight a day · first checked bag from $35
- CXCathay PacificoneworldNonstop · 1 flight a day · first checked bag included
- DLDelta Air LinesSkyTeamNonstop · 1 flight a day · first checked bag from $35
- ACAir CanadaStar AllianceConnecting via YYZ, YVR · first checked bag from $35
- AAAmerican AirlinesoneworldConnecting via DFW, ORD, PHX, LAX · first checked bag from $40
- NHANA All Nippon AirwaysStar AllianceConnecting via HND, NRT · first checked bag included
- OZAsiana AirlinesStar AllianceConnecting via ICN · 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
- KEKorean AirSkyTeamConnecting via ICN · first checked bag included
- SKSAS Scandinavian AirlinesSkyTeamConnecting via ARN, OSL · first checked bag from $70
- SQSingapore AirlinesStar AllianceConnecting via SIN · first checked bag included
- UAUnited AirlinesStar AllianceConnecting via ORD, DEN, IAH, LAX · first checked bag from $40
- VBVivaLow-costConnecting via MTY · first checked bag from $45
- Y4VolarisLow-costConnecting via TIJ · first checked bag from $45
- WSWestJetConnecting via YYC · first checked bag from $35
Connecting options
Hubs where one airline can carry you on both legs, most choices first.
- Chicago (ORD)AAUA2 airlines
- Los Angeles (LAX)AAUA2 airlines
- Tokyo (HND)JLNH2 airlines
- Tokyo (NRT)JLNH2 airlines
- Seoul (ICN)KEOZ2 airlines
Tips for this route
- Delta, Alaska and Cathay Pacific all fly SEA to HKG nonstop, so compare the total with bags before picking the lowest base fare: the difference between a basic and a standard economy ticket is often less than one checked bag each way.
- January 2027 is the cheapest month to fly over the next six months, with round trips from $476; September 2026 is the most expensive at $617 and up, a difference of $141 per traveler.
- Departing on a Tuesday averages 20% 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.
- Hong Kong is 15 hours ahead of Seattle. Expect to lose 15 hours on the clock heading east, so an overnight or late-afternoon departure tends to arrive at a more usable hour.
Ready to compare live fares?
See every airline on SEA–HKG side by side with bags and seat rules spelled out.
Search Seattle to Hong KongSeattle to Hong Kong: common questions
How long is the flight from Seattle to Hong Kong?
A nonstop flight from Seattle (SEA) to Hong Kong (HKG) takes about 13h 20m gate to gate, covering 6,488 miles. Connecting itineraries add the layover, typically 2 to 5 hours more in total.
Which airlines fly nonstop from SEA to HKG?
Delta Air Lines, Alaska Airlines and Cathay Pacific operate nonstop flights from Seattle (SEA) to Hong Kong (HKG), with 3 nonstop departures a day between them. One-stop options connect through ORD, LAX and HND.
What is the cheapest month to fly from Seattle to Hong Kong?
Over the next six months, January 2027 has the lowest round-trip fares from Seattle (SEA) to Hong Kong (HKG), starting at $476 per traveler including taxes and fees. Within any month, Tuesday departures average the lowest prices.
How far in advance should I book Seattle to Hong Kong 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 Seattle and Hong Kong?
Hong Kong is 15 hours ahead of Seattle. SEA is on America/Los Angeles time and HKG on Asia/Hong Kong time. Departure and arrival times in search results are always shown in local time at each airport.
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