International route
Cheap flights from Hong Kong to Seattle
Hong Kong International Airport (HKG) to Seattle-Tacoma International Airport (SEA). 6,488 miles, 12h 25m nonstop.
HKG to SEA 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
- 12h 25mnonstop, 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
- Tuesday22% less than Sunday
- Time difference
- 15h behindSeattle vs Hong Kong
Hong Kong to Seattle
Round trips from $457
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 WhatsAppHong Kong 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 Hong Kong to Seattle
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 HKG to SEA 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 $457; September 2026 is the most expensive at $640 and up, a difference of $183 per traveler.
- Departing on a Tuesday averages 22% less than a Sunday 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 Hong Kong. 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 Hong KongFares, airlines and tips for SEA to HKG.Ready to compare live fares?
See every airline on HKG–SEA side by side with bags and seat rules spelled out.
Search Hong Kong to SeattleHong Kong to Seattle: common questions
How long is the flight from Hong Kong to Seattle?
A nonstop flight from Hong Kong (HKG) to Seattle (SEA) takes about 12h 25m 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 HKG to SEA?
Delta Air Lines, Alaska Airlines and Cathay Pacific operate nonstop flights from Hong Kong (HKG) to Seattle (SEA), 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 Hong Kong to Seattle?
Over the next six months, January 2027 has the lowest round-trip fares from Hong Kong (HKG) to Seattle (SEA), starting at $457 per traveler including taxes and fees. Within any month, Tuesday departures average the lowest prices.
How far in advance should I book Hong Kong 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 Hong Kong and Seattle?
Seattle is 15 hours behind Hong Kong. HKG is on Asia/Hong Kong 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.