HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Seattle

$421+ Cheap flights from Hanoi (HAN) to Seattle (SEA)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/10. Fares are subject to change and may not be available on all flights or dates of travel.
HAN — SEA
Aug 25 — Sep 11
Mon 8/25
Mon 9/1
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Hanoi to Seattle with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Hanoi to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Hanoi (HAN) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 20, 2025.

Round-trip from

$685
(Gotogate)

One-way from

$421
(Travelocity)

Popular in

January

Cheapest in

March

Average price

$916
From Hanoi Noibai to Seattle/Tacoma Intl
Search Deals
One-way flight from Hanoi Noibai to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($69 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($25 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2025
Search Deals

Find flight deals from Hanoi to Seattle

Cheapest flights from Hanoi to Seattle
Explore the most affordable flight options available from Hanoi to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 20, 2025.

This Gotogate deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/22:30 amHAN - SEA
1 stop30h 45mPhilippine Airlines
Fri 10/1011:35 pmSEA - HAN
1 stop35h 10mPhilippine Airlines
Deal found 8/19$685
This Philippine Airlines deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Philippine Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/112:30 amHAN - SEA
1 stop30h 45mPhilippine Airlines
Wed 9/1711:35 pmSEA - HAN
1 stop35h 10mPhilippine Airlines
Deal found 8/18$755
This Korean Air deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2212:20 pmHAN - SEA
1 stop35h 40mKorean Air
Sat 1/311:00 amSEA - HAN
1 stop19h 40mKorean Air
Deal found 8/19$774
This FlightHub deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/105:50 pmHAN - SEA
1 stop36h 20mSTARLUX Airlines
Tue 9/161:15 amSEA - HAN
1 stop25h 35mSTARLUX Airlines
Deal found 8/18$792
This oojo deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2211:35 amHAN - SEA
1 stop21h 35mChina Airlines
Thu 1/112:10 amSEA - HAN
1 stop19h 25mChina Airlines
Deal found 8/19$793
This Philippine Airlines deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Philippine Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/92:30 amHAN - SEA
1 stop30h 45mPhilippine Airlines
Wed 9/1711:35 pmSEA - HAN
1 stop35h 10mPhilippine Airlines
Deal found 8/18$795
This oojo deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/112:50 amHAN - SEA
1 stop30h 45mPhilippine Airlines
Fri 1/29:30 pmSEA - HAN
1 stop37h 20mPhilippine Airlines
Deal found 8/19$806
This Delta deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/911:10 pmHAN - SEA
1 stop28h 30mDelta
Thu 9/1812:35 pmSEA - HAN
1 stop19h 00mDelta
Deal found 8/18$816
This Korean Air deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/911:10 pmHAN - SEA
1 stop25h 30mKorean Air
Mon 9/1512:50 pmSEA - HAN
1 stop18h 45mKorean Air
Deal found 8/18$819
This Asiana Airlines deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Asiana Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/131:25 pmHAN - SEA
1 stop37h 05mAsiana Airlines
Mon 9/152:15 pmSEA - HAN
1 stop17h 45mAsiana Airlines
Deal found 8/18$820
This STARLUX Airlines deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure STARLUX Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/135:50 pmHAN - SEA
1 stop36h 20mSTARLUX Airlines
Sun 9/141:15 amSEA - HAN
1 stop18h 55mSTARLUX Airlines
Deal found 8/18$827

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated August 20, 2025.
Use the filters below to find and compare flights from Hanoi to Seattle that are best for you.

Fly from

Hanoi

Fly to

Seattle

Route

Depart

Return

Price

HanoiSeattle

HAN - SEA

HANSEA

Hanoi Noibai

Thu 10/2

2:30 am-7:15 pm

1 stop30h 45m

Seattle/Tacoma Intl

Fri 10/10

11:35 pm-12:45 am

1 stop35h 10m

$685

HanoiSeattle

HAN - SEA

HANSEA

Hanoi Noibai

Thu 9/11

2:30 am-7:15 pm

1 stop30h 45m

Seattle/Tacoma Intl

Wed 9/17

11:35 pm-12:45 am

1 stop35h 10m

$755

HanoiSeattle

HAN - SEA

HANSEA

Hanoi Noibai

Mon 12/22

11:00 pm-9:00 am

1 stop25h 00m

Seattle/Tacoma Intl

Fri 1/2

11:00 am-11:10 am

1 stop33h 10m

$774

HanoiSeattle

HAN - SEA

HANSEA

Hanoi Noibai

Mon 12/22

12:20 pm-9:00 am

1 stop35h 40m

Seattle/Tacoma Intl

Sat 1/3

11:00 am-9:40 pm

1 stop19h 40m

$774

HanoiSeattle

HAN - SEA

HANSEA

Hanoi Noibai

Fri 12/19

12:20 pm-9:00 am

1 stop35h 40m

Seattle/Tacoma Intl

Sun 12/28

11:00 am-11:10 am

1 stop33h 10m

$774

HanoiSeattle

HAN - SEA

HANSEA

Hanoi Noibai

Fri 12/12

12:20 pm-9:00 am

1 stop35h 40m

Seattle/Tacoma Intl

Fri 1/2

11:00 am-9:40 pm

1 stop19h 40m

$774

HanoiSeattle

HAN - SEA

HANSEA

Hanoi Noibai

Tue 12/23

11:00 pm-9:00 am

1 stop25h 00m

Seattle/Tacoma Intl

Sat 1/3

11:00 am-11:10 am

1 stop33h 10m

$774

HanoiSeattle

HAN - SEA

HANSEA

Hanoi Noibai

Wed 9/10

5:50 pm-4:10 pm

1 stop36h 20m

Seattle/Tacoma Intl

Tue 9/16

1:15 am-4:50 pm

1 stop25h 35m

$792

HanoiSeattle

HAN - SEA

HANSEA

Hanoi Noibai

Mon 11/10

6:30 pm-7:10 am

1 stop27h 40m

$421

HanoiSeattle

HAN - SEA

HANSEA

Hanoi Noibai

Wed 11/12

12:45 pm-7:10 am

1 stop33h 25m

$421

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/19

Showing 1-10 of 16 results
1
2

Best time to book a flight from Hanoi to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Hanoi with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

What is the cheapest time of day to fly from HAN to SEA?

Find hourly flight availability from Hanoi to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 20, 2025.

A simple way to save on the total cost of your ticket is to fly from Hanoi to Seattle at noon. If you’re flexible enough to do this you can expect to save up to 8% on your trip compared to booking a flight in the afternoon.

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated August 20, 2025.
Get a feel of what it's like to fly with EVA Air, Korean Air, and China Airlines from Hanoi to Seattle by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very good
1,232 reviews

Overall

8.4

Comfort

8.3

Boarding

8.4

Crew

8.6

Entertainment

8.0

Food

8.1

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
EVA Air
8.4
Very good
1,232 reviews
EVA Air
8.4
Very good
1,232 reviews

Overall

8.4

Comfort

8.3

Boarding

8.4

Crew

8.6

Entertainment

8.0

Food

8.1

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Korean Air
8.4
Very good
1,131 reviews
EVA Air
8.4
Very good
1,232 reviews

Overall

8.4

Comfort

8.3

Boarding

8.4

Crew

8.6

Entertainment

8.0

Food

8.1

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
China Airlines
8.3
Very good
764 reviews
EVA Air
8.4
Very good
1,232 reviews

Overall

8.4

Comfort

8.3

Boarding

8.4

Crew

8.6

Entertainment

8.0

Food

8.1

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Related info for your journey

Find useful and relevant information for your journey from Hanoi to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Hanoi to Seattle?

    Airlines like Philippine Airlines and Korean Air fly from Hanoi to Seattle in about 25h. The time it takes to get you to your destination can typically vary by up to 5h 45m. There are 6827 mi between Hanoi and Seattle. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Hanoi to Seattle round-trip?

    Currently priced at $769, Korean Air will fly you from Hanoi to Seattle and back. In addition to Korean Air, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from China Airlines and EVA Air - these airlines can fly you to your destination from $797 and $885, respectively. These flights start at 18% lower than the current average price 3 months from now.

  • Can I find deals for flights from Hanoi to Seattle that include hotel bookings?

    Yes. In addition to deals on Hanoi to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Hanoi to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Hanoi to Seattle.

  • Can I find deals for business class flights from Hanoi to Seattle?

    Yes. Cheapflights offers flight deals from Hanoi to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Hanoi to Seattle?

    Currently, January is the cheapest month in which you can book a flight from Hanoi to Seattle (average of $238). Flying from Hanoi to Seattle in June is currently the most expensive (average of $388). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
SeaTac
Tukwila
Tacoma
Lakewood
Lacey
Ocean Shores
Lynnwood
Leavenworth
Renton
Olympia
Kent
Cle Elum
Puyallup
Chehalis
Kirkland
Issaquah
Aberdeen
Shoreline
Federal Way
Shelton

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Hanoi to Seattle

See prices for flight routes from nearby airports that may be better suited for you.
Ho Chi Minh City to Seattle flights
Ho Chi Minh City to Portland flights
Da Nang to Seattle flights
Da Nang to Portland flights
Nha Trang to Seattle flights

Top 3 airlines flying from Hanoi to Seattle

Discover the top 3 airlines that operate flights from Hanoi to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
Korean AirCheapest$769Average$983FlexibilityNo cancel feeOn-time81%
China AirlinesCheapest$797Average$898FlexibilityNo cancel feeOn-time70%
EVA AirCheapest$885Average$962FlexibilityNo cancel feeOn-time74%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.