HAN - SEA

$421 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 11/19. 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

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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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

jue., mar. 5 - lun., mar. 9
Korean Air Logo
12:20 pm - 9:00 amHAN-SEA
35h 40m1 stop
Korean Air Logo
12:00 pm - 9:45 pmSEA-HAN
19h 45m1 stop
$819Korean Air
Find Deal
jue., mar. 5 - dom., mar. 8
China Airlines Logo
11:35 am - 6:10 pmHAN-SEA
21h 35m1 stop
China Airlines Logo
1:10 am - 10:35 amSEA-HAN
19h 25m1 stop
$839China Airlines
Find Deal
vie., oct. 24 - sáb., nov. 1
 Logo
12:45 am - 10:40 amHAN-SEA
23h 55m1 stop
 Logo
12:00 pm - 12:40 amSEA-HAN
22h 40m1 stop
sáb., oct. 25 - vie., oct. 31
STARLUX Airlines Logo
5:50 pm - 4:05 pmHAN-SEA
36h 15m1 stop
STARLUX Airlines Logo
12:45 am - 10:30 amSEA-HAN
19h 45m1 stop
$861STARLUX Airlines
Find Deal
sáb., oct. 25 - sáb., nov. 1
 Logo
4:35 pm - 10:00 amHAN-SEA
31h 25m2 stops
 Logo
12:00 pm - 1:45 amSEA-HAN
23h 45m2 stops
sáb., oct. 25 - sáb., nov. 1
EVA Air Logo
6:00 pm - 6:50 pmHAN-SEA
14h 50m1 stop
EVA Air Logo
11:50 pm - 11:35 amSEA-HAN
21h 45m1 stop
$900EVA Air
Find Deal
jue., mar. 5 - lun., mar. 9
Delta Logo
11:05 pm - 9:00 amHAN-SEA
24h 55m1 stop
Delta Logo
7:20 am - 9:45 pmSEA-HAN
24h 25m2 stops
$920Delta
Find Deal
jue., mar. 5 - lun., mar. 9
Delta Logo
11:05 pm - 4:14 pmHAN-SEA
32h 09m2 stops
Delta Logo
7:20 am - 9:45 pmSEA-HAN
24h 25m2 stops
$930Delta
Find Deal
lun., oct. 13 - mar., oct. 14
EVA Air Logo
6:00 pm - 4:58 pmHAN-SEA
36h 58m2 stops
EVA Air Logo
7:59 pm - 4:50 pmSEA-HAN
30h 51m2 stops
$975EVA Air
Find Deal
jue., mar. 5 - dom., mar. 8
China Airlines Logo
5:30 pm - 6:10 pmHAN-SEA
15h 40m1 stop
China Airlines Logo
1:10 am - 3:05 pmSEA-HAN
23h 55m2 stops
$1,179China Airlines
Find Deal

Everything you should know

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
Cheapest round-trip
$819
Korean Air
jue. 3/5lun. 3/9
HAN - SEA • 1 stop
Cheapest one-way
$421
Typical prices: $541-592
Singapore Airlines
mié. 11/19
HAN - SEA • 1 stop
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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!
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 seasonDecember
Cheapest flight$421
Best time to beat the crowds with an average 9% drop in price.
Most popular time to fly with an average 2% increase in price.
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 $421 for a one-way ticket and $819 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?

    Star Alliance, and SkyTeam 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 Korean Air?

    The two airlines most popular with KAYAK users for flights from Hanoi to Seattle are EVA Air and Korean Air. With an average price for the route of $962 and an overall rating of 8.4, EVA Air is the most popular choice. Korean Air is also a great choice for the route, with an average price of $983 and an overall rating of 8.4.

  • 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 3 airlines serving 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 1236 reviews
8.1Food
8.4Boarding
8.0Entertainment
8.6Crew
8.3Comfort
Airline reviews

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

4.0 OkayAnonymous, Aug 2025TPE - SEA
Read more EVA Air reviews

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

I have never heard of EVA air before but I am so happy my wife and I were able to flight on their planes twice. Everything on these flights just felt better than their competitors. As someone with longer legs any bit of extra leg spaces is appreciated. The different options for food and drinks were also a plus. They were extra careful to make sure my wife's eating restrictions were taken care for. They had a before take off and landing announcements on the built in tablets for each seat and it gave out information that was very helpful. Such as what and how to declare your items in the specific country you landed in, any odd items that may be illegal to bring it (and even the reasoning why) and any other information you might need to make your post flight experience better. Oh and the seats were more comfortable, had more ability to lean and the headrest was much better for flight sleeping. The only downside was there were "forced" ads on the tablet at take off for maybe 5-10 minutes but honestly, this flight was the cheapest option and had all the benefits listed above that is such an easy trade off. Im keeping an eye out for EVA air going forward.

Sub sandwhich for a snack through mid flight and giving a bottle water was a good idea

Everything is good staff is polite and helpful flights are on time sub sandwhich for a snack was good with a bottle of water only thing maybe more variety of food like breakfast or dinner depends on the time

seats are pitched well. you don't feel too tight.

For the price, it was better than other airlines; quality of food and service was very good.

Great but I am not sure why I was placed in zone 4 for boarding despite being an Infinity Member??? Can you explain online. Thanks

Everything was excellent as I expected. They also had a very caring crew. I had a headache and asked a Tylenol. The crew members kept checking with me how I was doing.

They were trying to get people to check luggage because the over head compartments were full but when we boarded there were lots of empty places that people could have put the luggage.

I can't believe they put my wife and I in the two middle seats! It is a very long flight and we had single flyers on either side of us blocking the way to the bathroom! There's no reason to not give one of us the isle seat so we could have managed bathroom needs and snacks with convenience. So I think very poorly of Korean air to put us both in the middle, I've never had that happen before and will probably avoid this airline in the future because of this. We tried to have them change it but they didn't so you pretty much lost a customer because of it.

One of the flight attendants stepped on my foot. I was on the aisle seat. A lady inside needed to get out. So Instood. Just then, a flight attentendant came wuicklybtheoughbthe aisle and stepprd on my sock covered toes. I let out a small sound. She stopped momentarily, but didn’t ask how I was just took off of the aisle. Never came back to see how I was. Fortunately, I was not really hurt other than a slight soreness in my toes. But I found that to be very negligent.

Korean Air is unlike any other major airline I have flown with. The grace and respect that the staff has from check in to de-boarding is unmatched. The flight attendants this time were especially wonderful to my five little children. They helped us rearrange to more suitable seating, brought our children’s meals, and patiently waited for them in the aisles when they had to use the bathroom. We felt so welcome and comfortable. I really appreciate the meal voucher when our flight was delayed. I am grateful to have had such an stress-free experience.

It's good overall. Flight was packed. Inflight entertainment choices were lacking.

They were very accommodating of a dietary issue. Nice movie & tv selections. Non-stop helped get through a very long (15 hr) flight

Great except for the delay in Korea. Korean Air did a great job setting up a hotel for the night. I also needed assistance with a wheelchair and they were outstanding.

The flight was on time and very quick, as expected, but the leg room isn't great in coach seats.

The boarding process for Korean airlines is very straightforward and easy. You've never met such helpful and friendly people. The food was great and the entertainment options were excellent too. My teenage boys found programs they wanted to watch while I had fun watching a full season of the Last Man - the Blind Investigator (Japanese), which my wife enjoyed too. My only complaint was that it takes a very long time to taxi at ICN (20 minutes) and the pilot had to hold at the gate for 10 minutes after our scheduled departure time, which meant we got to Seattle 27 minutes late. Luckily I had a long enough connection to make my next flight, but just barely.

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.

Staff was so nice and very helpful with directions aswell!

It was our first time flying with China Airlines and had a very nice experience. The airline staff & crews both on the ground and air were very nice. Food on the plane was very good. Will recommend it to family and friends.

Not great, will likely try to fly another or maybe I should have upgraded my ticket? Needed Air…

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

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