S$517 Cheap Flights from Seattle to Hanoi

View S$517 flight on Mon, 26 Oct, 2026Opens in a new window

Popular airlines from Seattle-Tacoma International Airport (SEA) to Noi Bai Intl. Airport (HAN)

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Cheap Flights from Seattle to Hanoi (SEA-HAN)

Prices were available within the past 7 days and start at S$517 for one-way flights and S$995 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Korean Air
Mon, 26 Oct - Wed, 16 Dec
SEA
Seattle
HAN
Hanoi
S$995 Return, found 4 days ago
S$995
Return
found 4 days ago
Select Korean Air flight, departing Mon, 26 Oct from Seattle to Hanoi, returning Wed, 16 Dec, priced at S$995 found 4 days ago
Korean Air
Tue, 27 Oct - Thu, 17 Dec
SEA
Seattle
HAN
Hanoi
S$1,046 Return, found 4 days ago
S$1,046
Return
found 4 days ago
Select Korean Air flight, departing Tue, 27 Oct from Seattle to Hanoi, returning Thu, 17 Dec, priced at S$1,046 found 4 days ago
Korean Air
Mon, 26 Oct - Wed, 16 Dec
SEA
Seattle
HAN
Hanoi
S$1,079 Return, found 4 days ago
S$1,079
Return
found 4 days ago
Select Korean Air flight, departing Mon, 26 Oct from Seattle to Hanoi, returning Wed, 16 Dec, priced at S$1,079 found 4 days ago
Asiana Airlines
Mon, 26 Oct - Wed, 16 Dec
SEA
Seattle
HAN
Hanoi
S$1,131 Return, found 4 days ago
S$1,131
Return
found 4 days ago
Select Asiana Airlines flight, departing Mon, 26 Oct from Seattle to Hanoi, returning Wed, 16 Dec, priced at S$1,131 found 4 days ago
Delta
Mon, 26 Oct - Wed, 16 Dec
SEA
Seattle
HAN
Hanoi
S$1,172 Return, found 4 days ago
S$1,172
Return
found 4 days ago
Select Delta flight, departing Mon, 26 Oct from Seattle to Hanoi, returning Wed, 16 Dec, priced at S$1,172 found 4 days ago
Korean Air
Mon, 26 Oct - Wed, 16 Dec
SEA
Seattle
HAN
Hanoi
S$1,173 Return, found 4 days ago
S$1,173
Return
found 4 days ago
Select Korean Air flight, departing Mon, 26 Oct from Seattle to Hanoi, returning Wed, 16 Dec, priced at S$1,173 found 4 days ago
Singapore Airlines
Tue, 27 Oct - Thu, 17 Dec
SEA
Seattle
HAN
Hanoi
S$1,219 Return, found 4 days ago
S$1,219
Return
found 4 days ago
Select Singapore Airlines flight, departing Tue, 27 Oct from Seattle to Hanoi, returning Thu, 17 Dec, priced at S$1,219 found 4 days ago
Delta
Mon, 26 Oct - Wed, 16 Dec
SEA
Seattle
HAN
Hanoi
S$1,318 Return, found 4 days ago
S$1,318
Return
found 4 days ago
Select Delta flight, departing Mon, 26 Oct from Seattle to Hanoi, returning Wed, 16 Dec, priced at S$1,318 found 4 days ago
Qatar Airways
Tue, 27 Oct - Thu, 17 Dec
SEA
Seattle
HAN
Hanoi
S$1,344 Return, found 4 days ago
S$1,344
Return
found 4 days ago
Select Qatar Airways flight, departing Tue, 27 Oct from Seattle to Hanoi, returning Thu, 17 Dec, priced at S$1,344 found 4 days ago
STARLUX Airlines
Mon, 26 Oct - Wed, 16 Dec
SEA
Seattle
HAN
Hanoi
S$1,352 Return, found 4 days ago
S$1,352
Return
found 4 days ago
Select STARLUX Airlines flight, departing Mon, 26 Oct from Seattle to Hanoi, returning Wed, 16 Dec, priced at S$1,352 found 4 days ago

Find the cheapest month to fly from Seattle (SEA) to Hanoi (HAN)

August is typically the cheapest month to fly

From S$789 - S$1,444 per traveller.

Frequently asked questions

How much is a flight from SEA to HAN?
Within the past 7 days on Expedia, for flights departing within the next year, the lowest price listed for a round-trip journey from Seattle - Tacoma Intl. Airport (SEA) to Hanoi Intl. Airport was S$995. Fares this good don't last forever, so make sure you book yours today. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Seattle - Tacoma Intl. Airport (SEA) to Noi Bai Intl. Airport (HAN)?
Each air carrier has its own set of terms and conditions. If you do decide to cancel, follow the simple instructions on our Customer Service Portal.
How do I find cheap flights from Sea-Tac Airport to HAN that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Sea-Tac Airport to Noi Bai Intl. Airport (HAN) flights, you'll see a "no change fees" filter for you to select.
How far is the flight from SEA to Hanoi Intl. Airport?
You'll have 11,000 kilometres to cover on the long-haul SeaTac to Hanoi route. Wear comfortable clothes and consider taking a travel pillow with you.
Which airlines fly direct from SEA to Noi Bai Intl. Airport (HAN)?
Direct flights aren't available, so you'll need to make at least one stop between SEA and Hanoi Intl. Airport. Take advantage of the layover time to stretch your legs and grab a coffee.
Are Seattle - Tacoma Intl. Airport (SEA) to Hanoi Intl. Airport flight tickets cheaper when they're purchased at the last minute?
Late planners can occasionally nab a bargain, with some super cheap airfares from Seattle - Tacoma Intl. Airport (SEA) to Noi Bai Intl. Airport (HAN) showing up a few weeks before the date of departure. If you'd rather book ahead of time, Expedia compares and updates the best flight deals continuously — as early as 12 months in advance in some cases. It depends on the carrier though, as not all airlines advertise prices so far in advance.

Travel information

Origin airport
Seattle - Tacoma Intl.
Destination airport
Noi Bai Intl.
Return price
S$995
Distance
10931 km

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