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$343+ 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 8/31. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — HAN
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$737
(oojo)

One-way from

$343
(FlightHub)

Popular in

December

Cheapest in

April

Average price

$1,433
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. 7% potential increase in price ($83 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($43 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 12, 2025.

This FlightHub deal was found by Cheapflights users on 6/11. 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 10/111:35 pmSEA - HAN
1 stop35h 10mPhilippine Airlines
Tue 10/72:30 amHAN - SEA
1 stop30h 45mPhilippine Airlines
Deal found 6/11$671
This FlightHub deal was found by Cheapflights users on 6/11. 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.
Fri 9/2610:15 amSEA - HAN
1 stop35h 15mSingapore Airlines
Sat 10/116:30 pmHAN - SEA
1 stop28h 15mSingapore Airlines
Deal found 6/11$711
This oojo deal was found by Cheapflights users on 6/12. 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 9/12:15 pmSEA - HAN
1 stop17h 45mAsiana Airlines
Wed 4/111:30 pmHAN - SEA
1 stop29h 25mAsiana Airlines
Deal found 6/12$737
This oojo deal was found by Cheapflights users on 6/11. 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 9/301:10 amSEA - HAN
1 stop25h 40mChina Airlines
Tue 10/711:35 amHAN - SEA
1 stop21h 45mChina Airlines
Deal found 6/11$740
This FlightHub deal was found by Cheapflights users on 6/12. 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 8/311:15 amSEA - HAN
1 stop18h 55mSTARLUX Airlines
Wed 4/15:50 pmHAN - SEA
1 stop36h 20mSTARLUX Airlines
Deal found 6/12$767
This Gotogate deal was found by Cheapflights users on 6/12. 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 9/1310:00 amPDX - HAN
2 stops46h 15mANA
Fri 9/2611:35 pmHAN - PDX
2 stops33h 11mANA
Deal found 6/12$812
This United Airlines deal was found by Cheapflights users on 6/9. 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 7/286:45 amSEA - HAN
2 stops25h 30mUnited Airlines
Wed 8/2711:35 pmHAN - SEA
1 stop28h 50mUnited Airlines
Deal found 6/9$832
This Travelocity deal was found by Cheapflights users on 6/12. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/72:15 pmSEA - HAN
1 stop17h 45mMultiple Airlines
Sat 9/131:25 pmHAN - SEA
2 stops21h 51mMultiple Airlines
Deal found 6/12$850
This Travelocity deal was found by Cheapflights users on 6/9. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/211:20 pmSEA - HAN
1 stop18h 15mKorean Air
Thu 8/2812:00 pmHAN - SEA
2 stops24h 35mKorean Air
Deal found 6/9$853
This Gotogate deal was found by Cheapflights users on 6/10. 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.
Wed 10/14:30 pmSEA - HAN
1 stop39h 45mANA
Wed 10/811:35 pmHAN - SEA
1 stop28h 50mANA
Deal found 6/10$880
This oojo deal was found by Cheapflights users on 6/12. 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 10/15:36 pmPDX - HAN
2 stops33h 14mChina Airlines
Sun 10/1211:35 amHAN - PDX
2 stops39h 53mChina Airlines
Deal found 6/12$885
This oojo deal was found by Cheapflights users on 6/10. 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 10/18:37 amSEA - HAN
2 stops35h 18mCathay Pacific
Wed 10/297:25 pmHAN - SEA
2 stops37h 12mCathay Pacific
Deal found 6/10$896

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 June 12, 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

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Mon 9/1

2:15 pm-10:00 pm

1 stop17h 45m

Hanoi Noibai

Wed 4/1

11:30 pm-2:55 pm

1 stop29h 25m

$737

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Sun 8/31

1:15 am-10:10 am

1 stop18h 55m

Hanoi Noibai

Wed 4/1

5:50 pm-4:10 pm

1 stop36h 20m

$767

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Sun 8/31

1:40 am-10:35 am

1 stop18h 55m

Hanoi Noibai

Wed 4/1

11:35 am-9:10 am

2 stops35h 35m

$827

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Mon 7/28

6:45 am-10:15 pm

2 stops25h 30m

Hanoi Noibai

Wed 8/27

11:35 pm-2:25 pm

1 stop28h 50m

$832

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Sun 9/7

2:15 pm-10:00 pm

1 stop17h 45m

Hanoi Noibai

Sat 9/13

1:25 pm-9:16 pm

2 stops21h 51m

$850

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Thu 8/21

1:20 pm-9:35 pm

1 stop18h 15m

Hanoi Noibai

Thu 8/28

12:00 pm-10:35 pm

2 stops24h 35m

$853

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Wed 7/30

7:00 am-10:15 pm

2 stops25h 15m

Hanoi Noibai

Wed 8/27

11:35 pm-2:25 pm

1 stop28h 50m

$899

PortlandHanoi

PDX - HAN

PDXHAN

Portland

Wed 8/13

6:14 am-9:35 pm

2 stops25h 21m

Hanoi Noibai

Sat 8/23

12:00 pm-8:57 pm

2 stops22h 57m

$906

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Mon 8/4

1:10 am-11:05 am

1 stop19h 55m

Hanoi Noibai

Tue 8/19

12:05 pm-7:50 pm

1 stop21h 45m

$909

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Sun 8/10

11:35 pm-10:25 am

1 stop20h 50m

Hanoi Noibai

Sat 8/30

2:30 am-7:15 pm

1 stop30h 45m

$910

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 43 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 $975). Flying from State of Washington to Hanoi in December is currently the most expensive (average of $1,618). 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 June 12, 2025.

When flying from State of Washington to Hanoi, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Hanoi by month

Plan your trip to Hanoi by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Hanoi ranges from 0.6 - 11.7 inches per month. August is typically the wettest month, when rainfall can reach 11.7 in. December is typically the driest time to visit Hanoi when rainfall is around 0.6 in.

Temperature in Hanoi by month

Plan your trip to Hanoi by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Hanoi, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 62.6 F).

Reviews of airlines servicing Hanoi

Get insights into the airlines that provide service to Hanoi. 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 Hanoi. Reviews last updated June 12, 2025.
Read reviews from past customers who have flown STARLUX Airlines, EVA Air and Korean Air from Washington to Hanoi. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
STARLUX Airlines
9.1
Wonderful
177 reviews

Entertainment

8.9

Boarding

9.0

Comfort

9.0

Food

8.8

Overall

9.1

Crew

9.3

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
STARLUX Airlines
9.1
Wonderful
177 reviews
STARLUX Airlines
9.1
Wonderful
177 reviews

Entertainment

8.9

Boarding

9.0

Comfort

9.0

Food

8.8

Overall

9.1

Crew

9.3

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
EVA Air
8.4
Very good
1,202 reviews
STARLUX Airlines
9.1
Wonderful
177 reviews

Entertainment

8.9

Boarding

9.0

Comfort

9.0

Food

8.8

Overall

9.1

Crew

9.3

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
Korean Air
8.4
Very good
1,088 reviews
STARLUX Airlines
9.1
Wonderful
177 reviews

Entertainment

8.9

Boarding

9.0

Comfort

9.0

Food

8.8

Overall

9.1

Crew

9.3

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
Japan Airlines
8.3
Very good
1,489 reviews
STARLUX Airlines
9.1
Wonderful
177 reviews

Entertainment

8.9

Boarding

9.0

Comfort

9.0

Food

8.8

Overall

9.1

Crew

9.3

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
China Airlines
8.3
Very good
738 reviews
STARLUX Airlines
9.1
Wonderful
177 reviews

Entertainment

8.9

Boarding

9.0

Comfort

9.0

Food

8.8

Overall

9.1

Crew

9.3

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.

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.

  • 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 ($343), Japan Airlines ($383), and Asiana Airlines ($402).

  • 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 $975). Flying from State of Washington to Hanoi in December is currently the most expensive (average of $1,618). 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Asiana AirlinesCheapest$639Average$769FlexibilityNo cancel feeOn-time76%
Singapore AirlinesCheapest$682Average$1,007FlexibilityNo cancel feeOn-time81%
Japan AirlinesCheapest$717Average$880FlexibilityNo cancel feeOn-time79%
Korean AirCheapest$760Average$907FlexibilityNo cancel feeOn-time81%
China AirlinesCheapest$761Average$863FlexibilityNo cancel feeOn-time70%
DeltaCheapest$764Average$864FlexibilityNo cancel feeOn-timeN/A
STARLUX AirlinesCheapest$802Average$906FlexibilityNo cancel feeOn-timeN/A
EVA AirCheapest$808Average$982FlexibilityNo cancel feeOn-time74%

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