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Hanoi

$416+ 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 8/4. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — HAN
Jun 24 — Jul 11
Wed 6/24
Wed 7/1
1 adult, Economy
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Cheap 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 May 25, 2026.

This oojo deal was found by Cheapflights users on 5/23. 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 11/178:45 am
SEA
-
HAN
1 stop35h 45m
Singapore Airlines
Tue 11/2412:45 pm
HAN
-
SEA
1 stop33h 25m
Singapore Airlines
Deal found 5/23$768
This oojo deal was found by Cheapflights users on 5/25. 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 11/178:45 am
SEA
-
HAN
1 stop35h 45m
Singapore Airlines
Tue 12/16:25 pm
HAN
-
SEA
1 stop27h 45m
Singapore Airlines
Deal found 5/25$778
This oojo deal was found by Cheapflights users on 5/24. 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 10/1110:15 am
SEA
-
HAN
1 stop41h 25m
Singapore Airlines
Wed 10/289:40 am
HAN
-
SEA
1 stop36h 30m
Singapore Airlines
Deal found 5/24$806
This United Airlines deal was found by Cheapflights users on 5/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/197:11 am
SEA
-
HAN
2 stops25h 04m
United Airlines
Wed 10/2111:35 pm
HAN
-
SEA
2 stops37h 51m
United Airlines
Deal found 5/20$821
This United Airlines deal was found by Cheapflights users on 5/21. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/288:40 pm
SEA
-
HAN
2 stops35h 35m
United Airlines
Wed 10/711:35 pm
HAN
-
SEA
2 stops32h 54m
United Airlines
Deal found 5/21$827
This FlightHub deal was found by Cheapflights users on 5/21. 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.
Tue 10/134:30 pm
SEA
-
HAN
1 stop39h 45m
ANA
Mon 11/212:25 am
HAN
-
SEA
2 stops28h 53m
ANA
Deal found 5/21$828
This FlightHub deal was found by Cheapflights users on 5/21. 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.
Tue 10/134:30 pm
SEA
-
HAN
1 stop39h 45m
ANA
Tue 11/312:25 am
HAN
-
SEA
1 stop27h 55m
ANA
Deal found 5/21$830
This FlightHub deal was found by Cheapflights users on 5/24. 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.
Sun 9/2712:10 am
SEA
-
HAN
1 stop22h 05m
Asiana Airlines
Wed 10/711:30 pm
HAN
-
SEA
1 stop29h 45m
Asiana Airlines
Deal found 5/24$837
This oojo deal was found by Cheapflights users on 5/20. 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 10/110:15 am
SEA
-
HAN
1 stop39h 10m
Singapore Airlines
Sun 11/112:45 pm
HAN
-
SEA
2 stops26h 19m
Singapore Airlines
Deal found 5/20$839
This oojo deal was found by Cheapflights users on 5/25. 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 11/174:20 pm
SEA
-
HAN
2 stops28h 10m
Multiple Airlines
Tue 12/16:25 pm
HAN
-
SEA
1 stop27h 45m
Multiple Airlines
Deal found 5/25$845
This Justfly.com deal was found by Cheapflights users on 5/21. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/61:59 pm
PDX
-
HAN
2 stops27h 16m
Multiple Airlines
Fri 9/257:30 pm
HAN
-
PDX
2 stops35h 20m
Multiple Airlines
Deal found 5/21$924
This Justfly.com deal was found by Cheapflights users on 5/25. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1010:45 am
PDX
-
HAN
2 stops29h 10m
Multiple Airlines
Thu 11/191:45 am
HAN
-
PDX
2 stops29h 52m
Multiple Airlines
Deal found 5/25$931

Find flight deals from Washington to Hanoi

Keep the following information in mind while searching for Washington to Hanoi flight deals. Data was last updated May 25, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$768
(oojo)

One-way from

$416
(FlightHub)

Popular in

December

Cheapest in

September

Average price

$781
Provider with most accurate pricing for Seattle/Tacoma Intl-Hanoi Noibai flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Hanoi Noibai flights.
Search Deals
From Washington to Hanoi Noibai
Search Deals
One-way flight from Washington to Hanoi Noibai
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($124 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($46 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

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 May 25, 2026.
Use the filters below to find and compare flights from Washington to Hanoi that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Fri 8/14

7:15 am-10:35 am

2 stops37h 20m

Hanoi Noibai

Mon 9/21

11:10 pm-10:40 am

1 stop25h 30m

$925

PortlandHanoi

PDX - HAN

PDXHAN

Portland

Tue 11/10

1:53 pm-6:55 am

2 stops26h 02m

Hanoi Noibai

Thu 11/19

1:45 am-5:37 pm

2 stops30h 52m

$931

PortlandHanoi

PDX - HAN

PDXHAN

Portland

Sun 10/4

10:51 am-7:15 am

2 stops30h 24m

Hanoi Noibai

Fri 10/16

7:30 pm-6:55 pm

2 stops37h 25m

$931

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Sat 8/15

1:05 pm-9:35 pm

1 stop18h 30m

Hanoi Noibai

Wed 9/9

11:10 pm-1:37 pm

1 stop28h 27m

$935

PortlandHanoi

PDX - HAN

PDXHAN

Portland

Sat 11/7

6:00 pm-3:05 pm

2 stops30h 05m

Hanoi Noibai

Tue 11/17

6:25 pm-1:14 pm

2 stops33h 49m

$948

PortlandHanoi

PDX - HAN

PDXHAN

Portland

Mon 8/31

8:07 am-7:15 am

2 stops33h 08m

Hanoi Noibai

Sun 9/20

7:30 pm-6:40 pm

2 stops37h 10m

$964

PortlandHanoi

PDX - HAN

PDXHAN

Portland

Tue 9/8

11:48 am-7:15 am

2 stops29h 27m

Hanoi Noibai

Fri 9/25

7:30 pm-4:50 pm

2 stops35h 20m

$1,011

PortlandHanoi

PDX - HAN

PDXHAN

Portland

Thu 9/3

7:07 am-7:15 am

2 stops34h 08m

Hanoi Noibai

Mon 9/21

7:30 pm-4:50 pm

2 stops35h 20m

$1,011

PortlandHanoi

PDX - HAN

PDXHAN

Portland

Thu 9/3

11:48 am-7:15 am

2 stops29h 27m

Hanoi Noibai

Fri 9/25

7:30 pm-4:50 pm

2 stops35h 20m

$1,011

PortlandHanoi

PDX - HAN

PDXHAN

Portland

Thu 10/29

10:51 am-6:55 am

2 stops30h 04m

Hanoi Noibai

Mon 11/2

7:10 pm-11:00 pm

2 stops42h 50m

$1,071

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/20

Showing 1-10 of 32 resultsSorted by cheapest first
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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, February is the cheapest month in which you can book a flight from State of Washington to Hanoi (average of $400). Flying from State of Washington to Hanoi in June is currently the most expensive (average of $690). 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.

How much does it cost to fly round-trip from State of Washington to Hanoi?

How far ahead should I book a flight from State of Washington to Hanoi?

To ensure you get the cheapest price possible for a flight from State of Washington to Hanoi, you should look to book at least 27 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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 18h 30m. There are 6827 mi between State of Washington and Hanoi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from State of Washington to Hanoi one-way?

    The cheapest airlines for a one-way flight from State of Washington to Hanoi are Singapore Airlines ($270), Japan Airlines ($315), and Asiana Airlines ($329).

  • 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, February is the cheapest month in which you can book a flight from State of Washington to Hanoi (average of $400). Flying from State of Washington to Hanoi in June is currently the most expensive (average of $690). 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 8 airlines flying from Washington to Hanoi

Discover the top 8 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 May 25, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$400Average$816FlexibilityNo cancel feeOn-timeN/A
Singapore AirlinesCheapest$521Average$737FlexibilityNo cancel feeOn-time81%
Korean AirCheapest$588Average$777FlexibilityNo cancel feeOn-time81%
China AirlinesCheapest$614Average$827FlexibilityNo cancel feeOn-time70%
Asiana AirlinesCheapest$624Average$724FlexibilityNo cancel feeOn-time76%
Philippine AirlinesCheapest$638Average$681FlexibilityNo cancel feeOn-time60%
EVA AirCheapest$758Average$1,015FlexibilityNo cancel feeOn-time74%
STARLUX AirlinesCheapest$758Average$853FlexibilityNo cancel feeOn-timeN/A

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