Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Hanoi to Seattle from $398

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Hanoi to Seattle departing on 3/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Hanoi to Seattle

Cheap round-trip flights

Enter your travel dates to find the best prices.
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
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 - 6:05 pm
SEA
-
HAN
32h 05m2 stops
$909Cathay Pacific
Wed, Apr 1 - Sun, Apr 5
Multiple Airlines Logo
9:35 am - 6:10 pm
HAN
-
SEA
23h 35m2 stops
Multiple Airlines Logo
12:10 am - 9:10 pm
SEA
-
HAN
30h 00m2 stops
$966Multiple Airlines
Sat, Jan 31 - Fri, Feb 6
Delta Logo
11:05 pm - 9:00 am
HAN
-
SEA
24h 55m1 stop
Delta Logo
7:15 am - 11:10 am
SEA
-
HAN
36h 55m2 stops
$972Delta
Fri, Jan 30 - Fri, Feb 6
Korean Air Logo
11:05 pm - 1:20 pm
HAN
-
SEA
29h 15m1 stop
Korean Air Logo
11:25 am - 9:45 pm
SEA
-
HAN
19h 20m1 stop
$974Korean Air
Sat, Jan 31 - Sat, Feb 7
Philippine Airlines Logo
1:45 am - 8:05 pm
HAN
-
SEA
32h 20m1 stop
Philippine Airlines Logo
11:10 pm - 12:45 am
SEA
-
HAN
35h 35m1 stop
$984Philippine Airlines
Thu, Apr 2 - Fri, Apr 3
Multiple Airlines Logo
11:05 am - 10:46 pm
HAN
-
SEA
26h 41m2 stops
Multiple Airlines Logo
6:20 am - 6:30 pm
SEA
-
HAN
45h 10m2 stops
$1,015Multiple Airlines
Fri, Jan 30 - Fri, Feb 6
Philippine Airlines Logo
1:45 am - 8:05 pm
HAN
-
SEA
32h 20m1 stop
Philippine Airlines Logo
11:10 pm - 12:45 am
SEA
-
HAN
35h 35m1 stop
$1,027Philippine Airlines
Thu, Apr 2 - Fri, Apr 3
Multiple Airlines Logo
1:45 am - 7:16 pm
HAN
-
SEA
32h 31m2 stops
Multiple Airlines Logo
5:50 am - 8:50 am
SEA
-
HAN
36h 00m3 stops
$1,037Multiple Airlines
Fri, Jan 30 - Sat, Feb 7
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, Apr 3 - Fri, Apr 3

Korean Air flights from Hanoi to Seattle

Our best Korean Air deals on Hanoi to Seattle flight tickets
Korean Air
Apr 1
HAN12:00 pmHanoi Noibai
36h 40m
1 stop
SEA10:40 amSeattle/Tacoma Intl
Apr 5
SEA12:50 pmSeattle/Tacoma Intl
31h 50m
1 stop
HAN10:40 amHanoi Noibai
$799
Find similar
Korean Air
Jan 31
HAN11:05 pmHanoi Noibai
29h 15m
1 stop
SEA1:20 pmSeattle/Tacoma Intl
Feb 7
SEA11:25 amSeattle/Tacoma Intl
19h 20m
1 stop
HAN9:45 pmHanoi Noibai
$974
Find similar
Korean Air
Apr 1
HAN12:00 pmHanoi Noibai
25h 23m
2 stops
SEA11:23 pmSeattle/Tacoma Intl
Apr 5
SEA12:35 pmSeattle/Tacoma Intl
32h 05m
2 stops
HAN10:40 amHanoi Noibai
$1,185
Find similar

Cathay Pacific flights from Hanoi to Seattle

Our best Cathay Pacific deals on Hanoi to Seattle flight tickets
Cathay Pacific
Apr 1
HAN7:05 pmHanoi Noibai
29h 05m
1 stop
SEA10:10 amSeattle/Tacoma Intl
Apr 5
SEA8:00 pmSeattle/Tacoma Intl
32h 05m
2 stops
HAN6:05 pmHanoi Noibai
$909
Find similar
Cathay Pacific
Jan 8
HAN7:30 pmHanoi Noibai
38h 19m
2 stops
SEA6:49 pmSeattle/Tacoma Intl
Jun 11
SEA1:13 pmSeattle/Tacoma Intl
38h 52m
2 stops
HAN6:05 pmHanoi Noibai
$1,135
Find similar
Cathay Pacific
Jan 5
HAN7:30 pmHanoi Noibai
33h 57m
2 stops
SEA2:27 pmSeattle/Tacoma Intl
Jun 8
SEA9:55 amSeattle/Tacoma Intl
42h 10m
2 stops
HAN6:05 pmHanoi Noibai
$1,431
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Hanoi to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated December 18, 2025.
Use the filters below to find and compare flights from Hanoi to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

HanoiSeattle

HAN - SEA

HANSEA

Hanoi Noibai

Wed 4/1

12:00 pm-10:40 am

1 stop36h 40m

Seattle/Tacoma Intl

Sun 4/5

12:50 pm-10:40 am

1 stop31h 50m

$799

HanoiSeattle

HAN - SEA

HANSEA

Hanoi Noibai

Wed 4/1

7:05 pm-10:10 am

1 stop29h 05m

Seattle/Tacoma Intl

Sun 4/5

8:00 pm-6:05 pm

2 stops32h 05m

$909

HanoiSeattle

HAN - SEA

HANSEA

Hanoi Noibai

Sat 1/31

9:35 am-6:10 pm

2 stops23h 35m

Seattle/Tacoma Intl

Fri 2/6

12:10 am-9:10 pm

2 stops30h 00m

$966

HanoiSeattle

HAN - SEA

HANSEA

Hanoi Noibai

Fri 1/30

11:05 pm-9:00 am

1 stop24h 55m

Seattle/Tacoma Intl

Fri 2/6

7:15 am-11:10 am

2 stops36h 55m

$972

HanoiSeattle

HAN - SEA

HANSEA

Hanoi Noibai

Sat 1/31

11:05 pm-1:20 pm

1 stop29h 15m

Seattle/Tacoma Intl

Sat 2/7

11:25 am-9:45 pm

1 stop19h 20m

$974

HanoiSeattle

HAN - SEA

HANSEA

Hanoi Noibai

Thu 4/2

1:45 am-8:05 pm

1 stop32h 20m

Seattle/Tacoma Intl

Fri 4/3

11:10 pm-12:45 am

1 stop35h 35m

$984

HanoiSeattle

HAN - SEA

HANSEA

Hanoi Noibai

Fri 1/30

11:05 am-10:46 pm

2 stops26h 41m

Seattle/Tacoma Intl

Fri 2/6

6:20 am-6:30 pm

2 stops45h 10m

$1,015

HanoiSeattle

HAN - SEA

HANSEA

Hanoi Noibai

Thu 4/2

1:45 am-8:05 pm

1 stop32h 20m

Seattle/Tacoma Intl

Fri 4/3

11:10 pm-12:45 am

1 stop35h 35m

$1,027

HanoiSeattle

HAN - SEA

HANSEA

Hanoi Noibai

Fri 1/30

1:45 am-7:16 pm

2 stops32h 31m

Seattle/Tacoma Intl

Sat 2/7

5:50 am-8:50 am

3 stops36h 00m

$1,037

HanoiSeattle

HAN - SEA

HANSEA

Hanoi Noibai

Fri 4/3

12:05 pm-7:30 pm

1 stop21h 25m

Seattle/Tacoma Intl

Fri 4/3

10:55 pm-11:05 am

2 stops22h 10m

$1,038

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Seattle from

How to get the cheapest flight ticket from Hanoi to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Seattle?

On average, the least expensive day to fly to Seattle from Hanoi is on a Sunday. momondo users have found tickets for Sunday departures for as low as $868. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Saturday is the most expensive day to depart from Hanoi because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,250.

What is the cheapest time of day to depart on your flight to Seattle?

Flying to Seattle from Hanoi in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $980 when looking at flights departing in the afternoon. Flights to Seattle are more costly in the evening, with an average ticket price of $1,063. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

How have Hanoi to Seattle flight prices changed over time?

As of December 2025, prices for Hanoi to Seattle flights are approximately 10% cheaper when compared to flights at the same time last year.

When to book flights from Hanoi to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Hanoi to Seattle according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Hanoi to Seattle (HAN to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Hanoi to Seattle

Fastest flight time

16h 00m

Direct flights

None
The fastest flight from Hanoi to Seattle takes 16h 00m
There are no direct flights from Hanoi to Seattle. There are no popular flight routes from Hanoi to Seattle.
Search flight deals

  • How far is Hanoi Noibai to Seattle/Tacoma Intl by plane?

    Seattle/Tacoma Intl is 6829.4 mi away from Hanoi Noibai. Typically, this will take 16h 00m by plane in normal conditions.

  • When did momondo last update prices for flights from Hanoi Noibai Airport to Seattle/Tacoma Intl Airport?

    Prices for flights from Hanoi Noibai Airport to Seattle/Tacoma Intl Airport were last updated today.

  • How many operators does momondo search for flights from Hanoi Noibai Airport to Seattle/Tacoma Intl Airport?

  • How old do you have to be to fly from Hanoi Noibai Airport to Seattle/Tacoma Intl Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Hanoi Noibai Airport to Seattle/Tacoma Intl Airport.

  • What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

    The travel and health documents you'll need for your trip to Seattle/Tacoma Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Hanoi to Seattle?

Best airlines flying from Hanoi to Seattle

Compare and see reviews for airlines that fly from Hanoi to Seattle with momondo
Airline
Rating
Free Cancellation
Price
China AirlinesPriceFrom $794Free CancellationRating
8.3
792 reviews
Search China Airlines flights
EVA AirPriceFrom $887Free CancellationRating
8.4
1,297 reviews
Search EVA Air flights

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
Leavenworth
SeaTac
Ocean Shores
Renton
Olympia
Lynnwood
Kent
Marysville
Puyallup
Redmond
Tukwila
Cle Elum
Federal Way
Lakewood
Fife
Centralia
Westport
Kirkland
Shoreline

Why use momondo?

Why should I use momondo to find a flight deal from Hanoi to Seattle?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Hanoi to Seattle for you.

Can I find flights from Hanoi to Seattle with flexible booking policies on momondo?

Yes. All flights to Seattle from Hanoi on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Hanoi to Seattle?

Once you have performed a search for Hanoi to Seattle flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Hanoi to Seattle right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Seattle from Hanoi. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Seattle trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 1/17
Sat 1/24
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States