There are most likely no direct flights on the Seattle — Hanoi route
Flaut.Travel was designed and developed by a team dedicated to making the process of searching, comparing and booking airline tickets as easy and convenient as possible. Our service helps travelers to find and buy the cheapest flights from Seattle to Hanoi. We have connected more than 40 airlines and airline ticketing agencies to help you find the most suitable and affordable flight option.
The cost of a one-way flight from Seattle to Hanoi ranges from $414 (February 2027) to $671 (June 2027). On average, the ticket price is about $446–$472.
A non-stop flight is the most convenient and comfortable way to fly from Seattle to Hanoi, despite the fact that sometimes flights with transfers can cost significantly less.
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Answers to questions about the route that travelers are most interested in.
We keep tight track on airlines' pre-holidays sales and other special offers occurences all the time to let you save maximum amount of funds while traveling to your family or just going out on vacation.
Tickets from Seattle to Hanoi are getting cheaper month by month. From November 2026 to September 2027, the decline reached 3% — and that may not be the limit.
The most notable drop occurred from November 2026 to May 2027 — down 7%. The best period is February 2027–March 2027 (averaging $420), while the most expensive is June 2027–September 2027 ($565).
Since prices are falling, there's no rush to buy. The most cost-effective travel period is February 2027–March 2027: savings compared to expensive months can reach up to 26%.
Monthly price variation is 19.2%. Choosing the right departure date can lead to significant savings on this route.
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There are most likely no direct flights on the Seattle — Hanoi route
There appear to be no non-stop flights from Seattle to Hanoi at this time.... Well, or something went wrong on our side and we couldn't find anything
starting at $333
starting at $786
Flights from Seattle to Hanoi are operated by several airlines — Singapore Airlines and Jazz. This allows passengers to flexibly choose flights based on departure time, cost, and additional services. The minimum ticket price starts at $333, making this destination accessible to travelers with different budgets. We help compare all available options in real time, so you can book tickets at the best value for money. The service ensures transparent search and lets you book affordable flights in just a few clicks.
The cheapest flight ticket from Seattle to Hanoi according to data for the last 48 hours costs $333
Often the best time to buy tickets from Seattle to Hanoi is 2 months before departure.
Based on statistics over the past years, the lowest prices for flights from Seattle to Hanoi can be found flying in these months: February, May, March.
The fastest flights from Seattle to Hanoi start from 8 hours 25 minutes in the air.
The following airlines operate direct flights on the route Seattle — Hanoi:
The cheapest one-way flight from Seattle to Hanoi departs on 02/27/2027, is operated by Singapore Airlines and costs $333
There is no information about the cheapest roundtrip flight from Seattle to Hanoi
Fastest flight from Seattle to Hanoi takes 1d 8h 25m
There are no direct flights on this route.
The distance between Seattle and Hanoi is 10996km (6818 miles). The time difference between Seattle and Hanoi is 15h
We couldn't find any special offers for flights from Seattle to Hanoi
