HAN - SEA

$434 Find Cheap Flights from Hanoi to Seattle

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Hanoi to Seattle departing on 1/13. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Seattle

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Hanoi to Seattle, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Hanoi to Seattle, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$799
Korean Air
Wed 4/1Sun 4/5
HAN - SEA • 1 stop
Cheapest one-way
$503
Typical prices: $591-$1,099
Korean Air
Tue 1/13
HAN - SEA • 1 stop
Top airlines
Korean Air
Cheapest • from $819 (round-trip)
EVA Air
Best reviews • 8.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Seattle!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Hanoi to Seattle (HAN-SEA)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Hanoi to Seattle that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Hanoi to Seattle

Wed, Apr 1 - Sun, Apr 5
Korean Air Logo
12:00 pm - 10:40 am
HAN
-
SEA
36h 40m1 stop
Korean Air Logo
12:50 pm - 10:40 am
SEA
-
HAN
31h 50m1 stop
$799Korean Air
Sat, Jan 24 - Sat, Jan 31
Korean Air Logo
11:05 pm - 9:00 am
HAN
-
SEA
24h 55m1 stop
Korean Air Logo
11:00 am - 9:45 pm
SEA
-
HAN
19h 45m1 stop
$819Korean Air
Sat, Jan 24 - Sat, Jan 31
Delta Logo
12:20 pm - 9:00 am
HAN
-
SEA
35h 40m1 stop
Delta Logo
3:30 pm - 9:45 pm
SEA
-
HAN
39h 15m2 stops
$843Delta
Wed, Apr 1 - Sun, Apr 5
Cathay Pacific Logo
7:05 pm - 10:10 am
HAN
-
SEA
29h 05m1 stop
Cathay Pacific Logo
8:00 pm - 9:55 am
SEA
-
HAN
23h 55m2 stops
$909Cathay Pacific
Sun, Feb 22 - Sun, Feb 22
China Airlines Logo
5:30 pm - 6:10 pm
HAN
-
SEA
15h 40m1 stop
China Airlines Logo
9:41 pm - 10:20 am
SEA
-
HAN
45h 39m2 stops
$1,009China Airlines
Fri, Apr 3 - Fri, Apr 3
EVA Air Logo
12:05 pm - 7:30 pm
HAN
-
SEA
21h 25m1 stop
EVA Air Logo
10:55 pm - 11:05 am
SEA
-
HAN
22h 10m2 stops
$1,038EVA Air
Fri, Jan 23 - Sat, Jan 31
United Airlines Logo
12:25 am - 9:12 pm
HAN
-
SEA
35h 47m3 stops
United Airlines Logo
6:03 am - 11:05 pm
SEA
-
HAN
26h 02m2 stops
$1,095United Airlines
Fri, Jan 23 - Sat, Jan 31
Multiple Airlines Logo
1:45 am - 2:31 pm
HAN
-
SEA
27h 46m3 stops
Multiple Airlines Logo
5:50 am - 8:50 am
SEA
-
HAN
36h 00m3 stops
$1,104Multiple Airlines
Fri, Apr 3 - Fri, Apr 3
EVA Air Logo
6:00 pm - 7:30 pm
HAN
-
SEA
15h 30m1 stop
EVA Air Logo
10:55 pm - 4:50 pm
SEA
-
HAN
27h 55m2 stops
$1,130EVA Air
Mon, Dec 29 - Sat, Jan 3
China Airlines Logo
11:35 am - 6:10 pm
HAN
-
SEA
21h 35m1 stop
China Airlines Logo
12:10 am - 4:30 pm
SEA
-
HAN
25h 20m1 stop
$1,140China Airlines
Booking Insights

KAYAK's insights & trends for Hanoi to Seattle flights

Get data-powered insights and trends into flights from Hanoi to Seattle to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Hanoi to Seattle?

The average price of all round-trip flights from Hanoi to Seattle clicked on KAYAK for each day over the last 12 months.

For Hanoi to Seattle, Sunday is the cheapest day to fly on average and Saturday is the most expensive. Flying from Seattle back to Hanoi, the best deals are generally found on Tuesday, with Monday being the most expensive.

Good to know

Low seasonSeptember
Cheapest flight$503
Best time to beat the crowds with an average 16% drop in price.
Most popular time to fly and prices are also 8% lower on average.
Flight from Hanoi to Seattle

When to book flights from Hanoi to Seattle

Are your dates flexible? Find out the best times to travel from Hanoi to Seattle based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Hanoi to Seattle

  • What is the cheapest flight from Hanoi to Seattle?

    In the last 3 days, the lowest price for a flight from Hanoi to Seattle was $434 for a one-way ticket and $799 for a round-trip.

  • Do I need a passport to fly between Hanoi and Seattle?

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

  • Which airports will I be using when flying from Hanoi to Seattle?

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

  • Which aircraft models fly most regularly from Hanoi to Seattle?

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

  • Which airline alliances offer flights from Hanoi to Seattle?

    SkyTeam, and Star Alliance are the airline alliances operating flights between Hanoi and Seattle, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from Hanoi to Seattle, EVA Air or China Airlines?

    The two airlines most popular with KAYAK users for flights from Hanoi to Seattle are EVA Air and China Airlines. With an average price for the route of $1,006 and an overall rating of 8.4, EVA Air is the most popular choice. China Airlines is also a great choice for the route, with an average price of $886 and an overall rating of 8.2.

  • How does KAYAK find such low prices on flights from Hanoi to Seattle?

    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.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket 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.

  • What is the Hacker Fare option on flights from Hanoi to Seattle?

    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.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Hanoi to Seattle?

    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.

Reviews of the top airlines flying from Hanoi to Seattle

 
See real verified KAYAK customer reviews for airlines flying from Hanoi to Seattle. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Hanoi to Seattle? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.4
EVA AirOverall score based on 1296 reviews
8.0Entertainment
8.4Boarding
8.3Comfort
8.6Crew
8.1Food
Airline reviews

Eva airlines has very goin service, despite being low cost. Meals and fin, not amazing, restrooms always clean and staff polite and helpful

10.0 ExcellentAlexandra, Nov 2025
TPE - ORD
Read more EVA Air reviews

Eva airlines has very goin service, despite being low cost. Meals and fin, not amazing, restrooms always clean and staff polite and helpful

Its fantastic!!I like the food the serve in EVA air😊

It was very long way flight but its good I like the food they serve in EVA air its really good!

Although the flight was slightly delayed, it was well communicated with the passengers. The staff are all nice and accommodating, the pilot are very good. I didn’t realize that the plane was on the ground already. It landed smoothly. I’ll for surely recommend EVA Air to my friends.

everything was so good! Especially Food. It was the best I've ever had! However,I requested to add mileage point to Star alliance group ANA; it hasn't been added yet.... 😞

Flight was canceled was only given only a 8 hour lead time. Had to fight to be put on another airline (United Airlines) that was leaving earlier then the one EVA and rescheduled.

Awful had to ask for a supervisor to sit with my flight companion even t booked the tickets together weeks before

EVA airlines was excellent: on time or early, safe, courteous crew. Highly recommended.

EVA! What is going on with your food!?!? Pre pandemic I used to go to Taiwan at least twice a year and always flew EVA — the food was consistently tasty for airplane food. Post pandemic, it’s not great at all. Step it up!

Great experience, comfort and food is delicious. Always great service and one time

Very bad. They don’t allow group people to sit together by blocking most of seats and opening only single seat during online checking in. . By doing so, they can rip off customers at the check-in counter by collecting extra money if we want to sit together in the same row.

Hour late but understandable under the conditions. Taoyuan airport could have clearer signs language wise and more staff to help direct people.

Delayed. Not a full flight and whole rows left open with the paid seating. Food was ok. My beef meal only had one cube of beef the rest carrot cubes. Entertainment on personal device but didn’t know about it until the flight was almost done.

The flight was uneventful and the crew was kind and professional. Really appreciate the option to order a vegan meal for the flight!

I love my Delta crew, they were so welcoming and helpful.

I absolutely loved my flight from Taipei to LAX. I was originally assigned to a different seat, however one of the stewardess noticed I was uncomfortable in my seat. She offered to move me to a more comfortable setting. Although she didn’t have to do what she did, I am more than grateful and thankful for her doing so. My longer flight felt much more comfortable, just by her taking notice. I really appreciate her.

Overall was a lovely experience. The crew were kind and courteous throughout the entire flight.

Sat next to a woman who had her period. Blood was on her seat and on the arm rest between us. I ended up having period blood on my jacket and shoes. Very gross!

I did not like how the plane landed. It was not smooth.

Been flying with China Airline over years many times. Good experience with them, no issues.

Everything you need to know for your flight from Hanoi to Seattle

Information on your arrival and departure airports