$405 Find Cheap Flights from Hanoi to Seattle - Compare and Save

In the last 5 days, the lowest price for a flight from Hanoi to Seattle was $405 for a one-way ticket and $824 for a round-trip.

Yes, you'll most likely have to show a valid passport before boarding the plane in Hanoi and on arrival in Seattle.

When flying out of Hanoi you will be using Hanoi Noibai. You will be landing at Seattle, also known as Seattle/Tacoma Intl.

We unfortunately don’t have that data for this specific route.

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Hanoi to Seattle.

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle from Hanoi is likely to change within 7 days, so travelers know whether to wait or book now.

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Seattle with an airline and back to Hanoi with another airline. Booking your flights between Hanoi and SEA can sometimes prove cheaper using this method.

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Seattle from Hanoi up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.