Cheap Flights from Seattle / Tacoma International to Hanoi

Compare Seattle / Tacoma International to Hanoi flight deals

Find the cheapest month or even day of the year to fly to Hanoi

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Flight deals from Seattle / Tacoma International to Hanoi

Looking for a cheap last-minute deal or the best return flight from Seattle / Tacoma International to Hanoi? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Seattle / Tacoma International to Hanoi

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Seattle / Tacoma International to Hanoi flights are currently cheapest in January.

Seattle / Tacoma International to Hanoi: Alternative routes

Compare routes from Seattle / Tacoma International to Hanoi below. You may find an airport to fly into that's cheaper, faster, or easier than Hanoi.

Seattle to Hanoi: Flight information

The things to know before you go.
Cheapest flight foundRs89,939
Cheapest month to flyJanuary

Finding cheap flights from Seattle / Tacoma International to Hanoi: Frequently asked questions

The best price we found for a return flight from Seattle / Tacoma International to Hanoi is Rs193,507. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Seattle / Tacoma International to Hanoi. But we found flights with one or more stops from Rs193,507.
As of September 2025, there are no flights flying from Seattle / Tacoma International to Hanoi.
The cheapest month to fly from Seattle / Tacoma International to Hanoi is usually November.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Seattle / Tacoma International Airport to Hanoi Airport on Sunday, 9 November 2025.
No airlines currently offer direct flights between Seattle / Tacoma International Airport and Hanoi Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Hanoi but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Hanoi is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Philippine Airlines offers the cheapest flight tickets to Hanoi.

Travelling from Seattle-Tacoma International Airport (SEA) to Noi Bai International Airport (HAN): what you need to know

  • Hanoi is 14 hours ahead of Seattle and observes the UTC+7 timezone.

  • Give yourself enough time to catch your SEA to HAN flight. As a rule of thumb, arrive two hours before international departures and an hour ahead for domestic flights.

  • During popular months such as July, it's a good idea to get to the airport even earlier. Plan to arrive two hours before domestic departures and four hours ahead of international flights whenever you're flying during a peak period in general.

  • If you want to break up your flight, simply deselect 'Direct flights only' when searching for your ticket from Seattle-Tacoma International Airport to Noi Bai International Airport. These are the most popular stopovers between SEA and HAN:

    • Narita International Airport

    • Incheon International Airport

    • Taiwan Taoyuan International Airport

How to find the cheapest flights from Seattle-Tacoma International Airport (SEA) to Noi Bai International Airport (HAN)

  • The cheapest price we've found for a one-way Seattle-Tacoma International Airport to Noi Bai International Airport flight is Rs89,939. A return ticket is currently Rs193,507. Depending on the availability and when you book, these fares may change.

  • Don't wait until the last moment. You're more likely to get cheap tickets from SEA to HAN if you book in advance. Airlines often offer some terrific early bird deals.

  • The 'Whole month' tool shows you the cheapest flights from Seattle-Tacoma International Airport to Noi Bai International Airport throughout the entire month. It's a great way to snap up a bargain if your plans aren't set in stone.

  • There's no need to check back in every day to find out if fares have dropped when you set up a Price Alert. We'll let you know the moment there's a better deal on cheap flights from SEA to HAN.

  • Discover the perfect flight for you with the help of the filters. To see the 'Fastest,' 'Cheapest' or 'Best' flights from Seattle-Tacoma International Airport to Noi Bai International Airport, use the 'Sort by' function. You can also filter by airline, departure and arrival times, and number of stops.

Handy information about Seattle-Tacoma International Airport (SEA)

  • 81.27% of flights leaving Seattle-Tacoma International Airport land at their destination on schedule. Given its strong on-time performance, you're unlikely to face delays when flying out of SEA.

  • To get to Seattle-Tacoma International Airport from central Seattle, it'll take about 20 minutes if you're travelling by car. Of course, this depends on traffic. It's approximately 23 kilometres from the airport to the city centre.

  • The trip on public transport usually takes 55 minutes.

  • Taking an early flight from Seattle-Tacoma International Airport to Noi Bai International Airport? Avoid the stress of rushing to the airport (and enjoy a little extra shut-eye) by picking one of these stays near SEA:

Arriving at Noi Bai International Airport (HAN)

  • Consider staying in a hotel near HAN if you're taking a late Seattle-Tacoma International Airport to Noi Bai International Airport flight. Check in to one of these options and skip the long transfer after landing:

  • Venture beyond Hanoi and discover places that aren't on most itineraries with your own wheels. You can grab a Noi Bai International Airport rental car from Dichung Car Hire.

  • Book your vehicle from Noi Bai International Airport a few weeks before your departure date to get the lowest price. If you're travelling during a busy period, you may want to book even earlier.

Getting from Noi Bai International Airport (HAN) to central Hanoi

  • Noi Bai International Airport to central Hanoi has a drive time of around 35 minutes. It's approximately 26 kilometres away.

  • Travelling on public transport typically takes 1 hour 55 minutes.

When to fly to Noi Bai International Airport (HAN)

  • The quietest month for a flight from Seattle-Tacoma International Airport to Noi Bai International Airport is April, while July is the busiest. Pick the ideal time to go to Hanoi based on whether you prefer a bustling atmosphere or a more laid-back vibe.

  • When reserving your flight from Seattle-Tacoma International Airport to Noi Bai International Airport, consider the type of weather you like. June is the warmest month in Hanoi, with temperatures ranging from 25ºC to 36ºC.

  • January has average temperatures of between 10ºC and 22ºC. Search for cheap tickets from SEA to HAN sometime then if you'd rather travel in cooler conditions.

Explore more of Vietnam

  • You've done Hanoi, now it's time to discover other corners of Vietnam. Journey around 48 kilometres north-west to Việt Trì to check off its must-visit sights. From Vườn Lan Hiền Vũ to Nhà Vườn Tiến An and Vườn lan Ngọc Tân, there's plenty to keep you on the go.

  • If you want to check out another major destination in Vietnam, head for Móng Cái, roughly 225 kilometres east of Hanoi. Tra Co beach, Moncay Catholic Church and Chimsu Chill on the beach are key reasons to visit.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.