HAN - SEA

$472 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 9/25. 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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Flights 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

Thu, Sep 11 - Fri, Sep 19
Philippine Airlines Logo
2:30 am - 7:15 pmHAN-SEA
30h 45m1 stop
Philippine Airlines Logo
11:35 pm - 12:45 amSEA-HAN
35h 10m1 stop
$736Philippine Airlines
Find Deal
Fri, Sep 12 - Thu, Sep 18
STARLUX Airlines Logo
11:10 am - 4:10 pmHAN-SEA
19h 00m1 stop
STARLUX Airlines Logo
1:15 am - 4:50 pmSEA-HAN
25h 35m1 stop
$819STARLUX Airlines
Find Deal
Fri, Sep 12 - Fri, Sep 19
Delta Logo
12:00 pm - 1:43 pmHAN-SEA
39h 43m2 stops
Delta Logo
12:35 pm - 9:35 pmSEA-HAN
19h 00m1 stop
$867Delta
Find Deal
Wed, Aug 27 - Tue, Sep 2
EVA Air Logo
12:05 pm - 7:50 pmHAN-SEA
21h 45m1 stop
EVA Air Logo
1:30 am - 11:05 amSEA-HAN
19h 35m1 stop
$911EVA Air
Find Deal
Fri, Sep 12 - Fri, Sep 19
 Logo
1:25 pm - 1:40 pmHAN-SEA
38h 15m1 stop
 Logo
12:50 pm - 9:35 pmSEA-HAN
18h 45m1 stop
Thu, Aug 28 - Wed, Sep 3
EVA Air Logo
12:05 pm - 7:50 pmHAN-SEA
21h 45m1 stop
EVA Air Logo
1:30 am - 11:05 amSEA-HAN
19h 35m1 stop
$932EVA Air
Find Deal
Fri, Sep 12 - Thu, Sep 18
China Airlines Logo
5:50 pm - 8:07 amHAN-SEA
28h 17m2 stops
China Airlines Logo
1:10 am - 10:35 amSEA-HAN
19h 25m1 stop
$943China Airlines
Find Deal
Thu, Aug 28 - Thu, Sep 4
China Airlines Logo
5:50 pm - 7:45 pmHAN-SEA
15h 55m1 stop
China Airlines Logo
5:05 pm - 10:35 amSEA-HAN
27h 30m2 stops
$957China Airlines
Find Deal
Sun, Aug 10 - Sat, Aug 23
Delta Logo
11:10 pm - 2:01 pmHAN-SEA
28h 51m1 stop
Delta Logo
12:55 pm - 9:35 pmSEA-HAN
18h 40m1 stop
$1,066Delta
Find Deal
Wed, Aug 27 - Wed, Sep 3
Korean Air Logo
12:00 pm - 10:50 amHAN-SEA
36h 50m1 stop
Korean Air Logo
12:50 pm - 9:35 pmSEA-HAN
18h 45m1 stop
$1,121Korean Air
Find Deal
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.

What is the cheapest month to fly from Hanoi to Seattle?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Hanoi to Seattle, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Hanoi to Seattle is September, where tickets cost $745 (return) on average. On the other hand, the most expensive months are January and May, where the average cost of round-trip tickets is $1,187 and $971 respectively.

Good to know

Low seasonSeptember
Cheapest flight$472
Best time to beat the crowds with an average 20% drop in price.
Most popular time to fly with an average 3% 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 $472 for a one-way ticket and $736 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 Star Alliance 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 $996 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 1222 reviews
8.6Crew
8.4Boarding
8.0Entertainment
8.3Comfort
8.1Food
Airline reviews

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

10.0 ExcellentAnonymous, Jul 2025TPE - JFK
Read more EVA Air reviews

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.

I appreciate the email reminders for online check-in which made my entry to the lines less stressful. The flight was on schedule and on time. The baording staff were proactively helpful and approachable. The airplane inflight food, entertainment and comfies as well as provisions are excellent even in the economy seating. The airline transfer was smooth and easy! Luggage safe and intact! Thank you EVA airline for making my trip a reliable safe and comfortable experience.

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

Plane took off on time and I had the whole row to myself!

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.

Just a typical domestic poor flight nothing more. There is no food choices in such a flight. Crew doesn't really care if you are on-board or not

My second flight wasn't better than the first one. And this is 14 hours trip, crew came out only to offer food and the choices was poor. This food choices are good for Asian people but not for westerners. The breakfast kind thing was a corn sausage really disgusting. The air-conditioned blower really blow high and cold, turn out on my arrival to feel seek, that makes the trip uncomfortable. The crew didn't not really come out during the trip to offer drinks or snacks. No fruits available. Very poor service

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.

They need to improve on how the plane lands cause it was not smooth at all.

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…

I don’t think I’ll be flying them again. Tight seats, no flowing air or air nozzles that you can turn air on you, for those who could have motion sickness this would be your worst nightmare. The pilot was great and experienced (which is what you want when flying 12 hours) overall I’m thankful knowledgeable pilots!

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

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