Cheap flights from Seattle to Hong Kong from $349 BFI, SEA → HKG
Boeing Field International Airport (BFI), Seattle-Tacoma International Airport (SEA) → Hong Kong International Airport (HKG)
The cheapest one-way found recently is $349 with Alaska Airlines, 8 Jan 2027, found 2 days ago.
- Cheapest one-way found recently
- $349, found 2 days ago
One-way
The cheapest one-way fare on each of 4 departure dates is usually $630 to $752.
Cheapest one-way found recently
$349
8 Jan 2027 · Alaska Airlines
Seattle-Tacoma International Airport (SEA) → Hong Kong International Airport (HKG)
Leaves 12:40 p.m. · 24 h 20 min trip
stops unknown
found 2 days ago
Cheapest nonstop one-way
None seen yet.
Found recently, and the cheapest we hold
$349 8 Jan 2027found 2 days agoOpen this trip
It is also the cheapest one-way we hold, of any age.
What have prices looked like?
Over 33 days, 2 Oct to 11 Nov, the cheapest one-way we saw each day was $342 to $948.
Those were the prices on those days, not today's.
Is this a good one-way price?
Compared with the cheapest one-way fare on each of 4 departure dates from 5 Jan 2027 to 20 Jan 2027, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.
Could nearby dates be cheaper?
No. We hold one-way fares on 2 other departure dates within 3 days of 8 Jan 2027, and none is cheaper.
Every date we hold
4 fares on 4 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 5 Jan 2027 | $723 | SeaPort Airlines | Boeing Field International Airport (BFI) → Hong Kong International Airport (HKG) | 3 stops | found 2 days ago | Open this trip |
| 6 Jan 2027 | $743 | SeaPort Airlines | Boeing Field International Airport (BFI) → Hong Kong International Airport (HKG) | 3 stops | found 2 days ago | Open this trip |
| 8 Jan 2027 | $349 | Alaska Airlines | Seattle-Tacoma International Airport (SEA) → Hong Kong International Airport (HKG) | stops unknown | found 2 days ago | Open this trip |
| 20 Jan 2027 | $778 | SeaPort Airlines | Boeing Field International Airport (BFI) → Hong Kong International Airport (HKG) | 2 stops | found 2 days ago | Open this trip |
Airlines on the cheapest dates: SeaPort Airlines, Alaska Airlines.
Premium cabin fares from Seattle to Hong Kong
We hold no premium economy, business or first-class fares for this route: we collect them for the busiest routes, and this one is not among them yet.
Today's prices for 8 Jan 2027 in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Seattle to Hong Kong?
One-way
The cheapest fares were 30 to 59 days before departure.
From the cheapest one-way each day between 2 Oct and 11 Nov (33 days), grouped by how many days ahead the flight left; one adult in economy.
Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.
Prices reflect recent searches — current fares may differ.
See these ranges as a table
| Booked ahead by | Typical fare | Cheapest day | Above the cheapest | Days of prices |
|---|---|---|---|---|
| 30–59 days | $430 | $349 | Cheapest seen | 18 |
| 60–89 days | $722 | $375 | +68% | 29 |
| 90–179 days | $673 | $414 | +57% | 14 |
Could a nearby airport be cheaper?
A different airport at either end can change the fare — sometimes a lot.
One-way
Everett → Hong Kong
34 km from Seattle
$566
$217 more than flying from Seattle
20 Jan 2027 · PAE → HKG · 1 stop
found 2 days ago
Cheapest recent price on each route — one way, per traveler in Economy. Distances are in a straight line.
Live price for these dates
The cheapest one-way found recently is for 8 Jan 2027. A live search on this page shows what those dates cost now, for one adult in economy.
Questions about this trip
How much is a one-way flight from Seattle to Hong Kong?
The cheapest one-way found recently is $349 with Alaska Airlines, 8 Jan 2027, found 2 days ago. The cheapest one-way fare on each of 4 departure dates is usually $630 to $752.
How far ahead should I book a flight from Seattle to Hong Kong?
In 33 days of prices between 2 Oct and 11 Nov, one-way fares were cheapest 30 to 59 days before departure.
Which airlines have the cheapest flights from Seattle to Hong Kong?
Between 5 Jan 2027 and 20 Jan 2027, SeaPort Airlines has the cheapest one-way on 3 of the 4 departure dates we hold, and Alaska Airlines on 1.
Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work