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$338+ Cheap flights from Washington to Hanoi (HAN)

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 1/2. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — HAN
Dec 3 — Dec 101
Wed 12/3
Wed 12/10
1 adult, Economy
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Cheap flight deals from Washington to Hanoi

Keep the following information in mind while searching for Washington to Hanoi flight deals. Data was last updated November 3, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$653
(oojo)

One-way from

$338
(FlightHub)

Popular in

June

Cheapest in

September

Average price

$789
Provider with most accurate pricing for Seattle/Tacoma Intl-Hanoi Noibai flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Hanoi Noibai flights.
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From Washington to Hanoi Noibai
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One-way flight from Washington to Hanoi Noibai
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Highest demand for flights based on searches. 21% potential increase in price ($254 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($44 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Find flight deals from Washington to Hanoi

Cheapest flights from Washington to Hanoi
Explore the most affordable flight options available from Washington to Hanoi. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 3, 2025.

This oojo deal was found by Cheapflights users on 11/2. 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.
Wed 11/269:30 pmSEA - HAN
1 stop37h 15mPhilippine Airlines
Wed 12/242:50 amHAN - SEA
1 stop30h 50mPhilippine Airlines
Deal found 11/2$659
This oojo deal was found by Cheapflights users on 11/2. 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.
Tue 11/2512:10 amSEA - HAN
1 stop31h 15mAsiana Airlines
Thu 12/251:30 pmHAN - SEA
1 stop15h 25mAsiana Airlines
Deal found 11/2$699
This Gotogate deal was found by Cheapflights users on 11/2. 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.
Sat 11/2912:10 amSEA - HAN
1 stop31h 15mAsiana Airlines
Sun 12/711:50 pmHAN - SEA
1 stop29h 05mAsiana Airlines
Deal found 11/2$712
This Korean Air deal was found by Cheapflights users on 11/2. 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.
Sun 11/3011:00 amSEA - HAN
1 stop33h 10mKorean Air
Sun 12/711:05 pmHAN - SEA
1 stop24h 55mKorean Air
Deal found 11/2$773
This Korean Air deal was found by Cheapflights users on 11/1. 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.
Wed 11/263:45 pmSEA - HAN
2 stops28h 25mKorean Air
Thu 12/2511:05 pmHAN - SEA
1 stop24h 55mKorean Air
Deal found 11/1$779
This oojo deal was found by Cheapflights users on 11/1. 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.
Sun 11/1611:45 pmSEA - HAN
1 stop19h 45mSTARLUX Airlines
Sat 12/136:25 pmHAN - SEA
1 stop35h 40mSTARLUX Airlines
Deal found 11/1$780
This oojo deal was found by Cheapflights users on 11/1. 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.
Tue 11/2512:10 amSEA - HAN
1 stop26h 05mEVA Air
Thu 12/256:20 pmHAN - SEA
1 stop14h 10mEVA Air
Deal found 11/1$781
This Trip.com deal was found by Cheapflights users on 11/2. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/2912:10 amSEA - HAN
1 stop31h 15mMultiple Airlines
Sun 12/79:35 amHAN - SEA
2 stops24h 05mMultiple Airlines
Deal found 11/2$798
This Trip.com deal was found by Cheapflights users on 11/2. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/309:30 pmSEA - HAN
1 stop37h 15mPhilippine Airlines
Sat 12/62:50 amHAN - SEA
1 stop30h 50mPhilippine Airlines
Deal found 11/2$800
This Korean Air deal was found by Cheapflights users on 11/2. 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.
Sun 11/167:59 pmSEA - HAN
2 stops34h 46mKorean Air
Sat 12/1312:20 pmHAN - SEA
1 stop35h 40mKorean Air
Deal found 11/2$807
This oojo deal was found by Cheapflights users on 11/1. 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.
Sat 11/17:57 pmSEA - HAN
2 stops48h 33mMultiple Airlines
Sat 2/76:25 pmHAN - SEA
1 stop35h 40mMultiple Airlines
Deal found 11/1$828
This STARLUX Airlines deal was found by Cheapflights users on 11/2. 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.
Thu 11/135:30 pmPDX - HAN
2 stops32h 55mSTARLUX Airlines
Mon 11/1711:30 amHAN - PDX
2 stops24h 07mSTARLUX Airlines
Deal found 11/2$919

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington to Hanoi 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 November 3, 2025.
Use the filters below to find and compare flights from Washington to Hanoi that are best for you.

Fly from

Washington

Fly to

Hanoi

Route

Depart

Return

Price

PortlandHanoi

PDX - HAN

PDXHAN

Portland

Fri 5/1

5:30 pm-10:35 am

2 stops27h 05m

Hanoi Noibai

Fri 5/15

5:50 pm-9:28 am

2 stops29h 38m

$803

PortlandHanoi

PDX - HAN

PDXHAN

Portland

Fri 5/1

5:30 pm-10:35 am

2 stops27h 05m

Hanoi Noibai

Tue 5/12

5:50 pm-9:28 am

2 stops29h 38m

$803

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Sun 11/16

7:59 pm-9:45 pm

2 stops34h 46m

Hanoi Noibai

Sat 12/13

12:20 pm-9:00 am

1 stop35h 40m

$807

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Thu 1/15

3:45 pm-10:35 am

2 stops27h 50m

Hanoi Noibai

Mon 1/19

11:35 am-6:10 pm

1 stop21h 35m

$825

PortlandHanoi

PDX - HAN

PDXHAN

Portland

Wed 2/18

2:40 pm-10:35 am

2 stops28h 55m

Hanoi Noibai

Wed 3/11

5:30 pm-9:35 am

2 stops30h 05m

$832

PortlandHanoi

PDX - HAN

PDXHAN

Portland

Thu 1/15

4:51 pm-10:35 am

2 stops26h 44m

Hanoi Noibai

Thu 2/26

5:30 pm-9:35 am

2 stops31h 05m

$832

PortlandHanoi

PDX - HAN

PDXHAN

Portland

Mon 1/19

5:50 pm-5:20 pm

2 stops32h 30m

Hanoi Noibai

Thu 2/26

12:45 pm-10:55 am

2 stops37h 10m

$834

PortlandHanoi

PDX - HAN

PDXHAN

Portland

Thu 1/15

7:45 am-11:05 pm

2 stops24h 20m

Hanoi Noibai

Mon 2/9

12:25 am-6:56 pm

2 stops33h 31m

$857

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Fri 1/2

8:45 am-8:35 am

1 stop32h 50m

Hanoi Noibai

Mon 3/2

9:40 am-7:10 am

1 stop36h 30m

$876

PortlandHanoi

PDX - HAN

PDXHAN

Portland

Thu 1/15

5:51 pm-10:35 am

2 stops25h 44m

Hanoi Noibai

Fri 2/27

11:20 am-8:48 pm

2 stops24h 28m

$906

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/2

Showing 1-10 of 31 results
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Best time to book a flight from Washington to Hanoi

Have a flexible travel schedule? Discover the best time to fly to Hanoi from Washington 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 Washington to Hanoi

What is the cheapest month to book a flight from State of Washington to Hanoi?

Currently, September is the cheapest month in which you can book a flight from State of Washington to Hanoi (average of $542). Flying from State of Washington to Hanoi in June is currently the most expensive (average of $1,205). 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.

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

Find hourly flight availability from Washington to Hanoi. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 3, 2025.

When flying from State of Washington to Hanoi, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 14% versus a flight in the morning.

Related info for your journey

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

  • What airport do you fly into for flights to Hanoi from Washington?

    For a flight from Washington to Hanoi, you will be flying into Noibai. Hanoi Noibai (HAN) is just 14.2 mi from the center of the city.

  • How long is the flight from State of Washington to Hanoi?

    Departing from State of Washington to Hanoi will take you 32h 30m. There are 6908 mi between State of Washington and Hanoi. This flight may include one or multiple stops.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Washington to Hanoi 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 State of Washington to Hanoi?

    Currently, September is the cheapest month in which you can book a flight from State of Washington to Hanoi (average of $542). Flying from State of Washington to Hanoi in June is currently the most expensive (average of $1,205). 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

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Alternative routes for Washington to Hanoi

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Top 7 airlines flying from Washington to Hanoi

Discover the top 7 airlines that operate flights from Washington to Hanoi. 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 November 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest$628Average$966FlexibilityNo cancel feeOn-time81%
Asiana AirlinesCheapest$628Average$722FlexibilityNo cancel feeOn-time76%
Korean AirCheapest$722Average$890FlexibilityNo cancel feeOn-time81%
China AirlinesCheapest$722Average$841FlexibilityNo cancel feeOn-time70%
DeltaCheapest$764Average$784FlexibilityNo cancel feeOn-timeN/A
STARLUX AirlinesCheapest$775Average$893FlexibilityNo cancel feeOn-timeN/A
EVA AirCheapest$783Average$938FlexibilityNo cancel feeOn-time74%

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