₩445,300 Cheap Flights from Seattle (SEA) to Hanoi (HAN)

View ₩445,300 flight on Sat, Feb 21, 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 ₩445,300 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

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

February is typically the cheapest month to fly

From ₩939,580 - ₩1,454,117 per traveler.

Graph displaying average flight prices per month

Flights from Seattle (SEA) to Hanoi (HAN)
Origin airport
Seattle - Tacoma Intl.
Destination airport
Noi Bai Intl.
Distance
10931 km

Seattle to Hanoi Flights

Sometimes you just need to get out of town or maybe you’re looking for a change of scenery. Regardless of the reason, a flight from Seattle to Hanoi will do just the trick! Go on, plan to see all the famous landmarks and eat your weight in the local cuisine. Your trip is beckoning, so answer the call by packing your suitcase and filling your travel itinerary with exploring Hanoi.

Whether you’re flying for business or jet-setting on your personal time, you’ve come to the right place. Here at Expedia.com, we’ll pair you up with SEA to HAN flights that won’t make your bank account wince. Ready to temporarily leave behind Seattle for new horizons? Browse through our cheap airfare, and filter by flight times and dates until you find just what you had in mind. From flights without layovers to ones that arrive early in the morning, you’ll come across plane tickets that suit your travel preferences. You can even bundle your flight to HAN with hotels and car rentals to score even bigger savings.

All set to hit the clouds? Book your travel arrangements with us today and have left-over money to put toward your travel outings and adventures.

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 . 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 kilometers 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.

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