S$432 Cheap Flights from Seattle to Hanoi

View S$432 flight on Thu, 5 Mar, 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$432 for one-way flights and S$903 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Asiana Airlines
Thu, 5 Mar - Sat, 14 Mar
SEA
Seattle
HAN
Hanoi
S$903 Return, found 1 day ago
S$903
Return
found 1 day ago
Select Asiana Airlines flight, departing Thu, 5 Mar from Seattle to Hanoi, returning Sat, 14 Mar, priced at S$903 found 1 day ago
Delta
Fri, 5 Sep - Tue, 9 Sep
SEA
Seattle
HAN
Hanoi
S$1,029 Return, found 1 day ago
S$1,029
Return
found 1 day ago
Select Delta flight, departing Fri, 5 Sep from Seattle to Hanoi, returning Tue, 9 Sep, priced at S$1,029 found 1 day ago
Asiana Airlines
Fri, 6 Mar - Sat, 14 Mar
SEA
Seattle
HAN
Hanoi
S$1,031 Return, found 1 day ago
S$1,031
Return
found 1 day ago
Select Asiana Airlines flight, departing Fri, 6 Mar from Seattle to Hanoi, returning Sat, 14 Mar, priced at S$1,031 found 1 day ago
Korean Air
Fri, 5 Sep - Tue, 9 Sep
SEA
Seattle
HAN
Hanoi
S$1,034 Return, found 1 day ago
S$1,034
Return
found 1 day ago
Select Korean Air flight, departing Fri, 5 Sep from Seattle to Hanoi, returning Tue, 9 Sep, priced at S$1,034 found 1 day ago
Asiana Airlines
Thu, 5 Mar - Sat, 14 Mar
SEA
Seattle
HAN
Hanoi
S$1,042 Return, found 1 day ago
S$1,042
Return
found 1 day ago
Select Asiana Airlines flight, departing Thu, 5 Mar from Seattle to Hanoi, returning Sat, 14 Mar, priced at S$1,042 found 1 day ago
Singapore Airlines
Thu, 5 Mar - Sat, 14 Mar
SEA
Seattle
HAN
Hanoi
S$1,066 Return, found 1 day ago
S$1,066
Return
found 1 day ago
Select Singapore Airlines flight, departing Thu, 5 Mar from Seattle to Hanoi, returning Sat, 14 Mar, priced at S$1,066 found 1 day ago
STARLUX Airlines
Fri, 5 Sep - Tue, 9 Sep
SEA
Seattle
HAN
Hanoi
S$1,067 Return, found 1 day ago
S$1,067
Return
found 1 day ago
Select STARLUX Airlines flight, departing Fri, 5 Sep from Seattle to Hanoi, returning Tue, 9 Sep, priced at S$1,067 found 1 day ago
China Airlines
Fri, 5 Sep - Tue, 9 Sep
SEA
Seattle
HAN
Hanoi
S$1,073 Return, found 1 day ago
S$1,073
Return
found 1 day ago
Select China Airlines flight, departing Fri, 5 Sep from Seattle to Hanoi, returning Tue, 9 Sep, priced at S$1,073 found 1 day ago
Cathay Pacific
Fri, 5 Sep - Tue, 9 Sep
SEA
Seattle
HAN
Hanoi
S$1,133 Return, found 1 day ago
S$1,133
Return
found 1 day ago
Select Cathay Pacific flight, departing Fri, 5 Sep from Seattle to Hanoi, returning Tue, 9 Sep, priced at S$1,133 found 1 day ago
EVA Airways
Thu, 5 Mar - Sat, 14 Mar
SEA
Seattle
HAN
Hanoi
S$1,183 Return, found 1 day ago
S$1,183
Return
found 1 day ago
Select EVA Airways flight, departing Thu, 5 Mar from Seattle to Hanoi, returning Sat, 14 Mar, priced at S$1,183 found 1 day ago

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

February is typically the cheapest month to fly

From S$869 - S$1,361 per traveller.

Graph displaying average flight prices per month

Seattle to Hanoi route information
Origin airport
Seattle - Tacoma Intl.
Destination airport
Noi Bai Intl.
Airlines serving
Air Canada, Air France, American Airlines, Asiana Airlines, British Airways, Cathay Pacific, China Airlines, Delta, EVA Airways, Emirates, Hawaiian Airlines, Japan Airlines, Korean Air, Qatar Airways, Singapore Airlines, Turkish Airlines, United
Return price
S$903
Distance
10931 km

Perfect flights from Seattle to Hanoi

Your Journey from Seattle to Hanoi

Start your unforgettable journey with Expedia. Our broad selection of flights from Seattle to Hanoi caters to every travel need. Whether you're yearning for a romantic escape, a solo adventure, or a cultural immersion, we've got you covered.
 

Choosing Your Ideal Flight

With Expedia, you have access to a wide range of airlines, including Philippine Airlines, Asiana Airlines, Delta, United, All Nippon Airways, STARLUX Airlines, China Airlines, Korean Air, Singapore Airlines, Cathay Pacific, EVA Airways. Our selection of flights from Seattle - Tacoma Intl. to Noi Bai Intl. caters to every traveler's requirements, ensuring your journey aligns with your schedule. With options from 20 airlines, you're bound to find the perfect flight.
 

Maximizing Value with Seattle to Hanoi Flights

Experience the joy of finding cheap flights from Seattle - Tacoma Intl. to Noi Bai Intl. that fit your budget. Keep an eye out for our special deals and discounts, and check our flexible one-way fares from S$432 and roundtrip prices from S$903*.
 

Pre-Flight Essentials

Ensure a smooth journey from Seattle to Hanoi with Expedia. From information about check-in times and in-flight amenities to guidance on baggage policies, we provide all the essentials to prepare you for your flight.
 

Experience the Vibrant Hanoi

Picture yourself stepping off the plane in Hanoi and immersing yourself in the unique atmosphere of . From local markets to cultural festivals, each city offers its distinct charm. Make the most of your trip by exploring local attractions and indulging in the local cuisine. With Expedia, explore all this and more, tailored to your budget.
 

Added Convenience on Your Seattle to Hanoi Flight

Traveling with Expedia is more than just a flight. We offer details about in-flight amenities, baggage policies, and more to ensure a smooth and hassle-free journey. Choose from our variety of airlines and embark on a memorable journey from Seattle to Hanoi.
 

Beyond the Flight – Exploring Hanoi

With Expedia, your adventure extends beyond the flight. Explore Hanoi at your own pace by renting a car or booking a hotel. Discover hidden gems off the beaten path and create unforgettable memories.
 

Book Your Flight from Seattle to Hanoi with Confidence

Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support make your travel experience seamless and stress-free. Embark on your journey from Seattle to Hanoi with confidence. Book your travel arrangements with Expedia today.
 
*Note: Prices may vary based on availability and are subject to change.

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$903. 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.

Explore a world of travel with Expedia

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