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$333+ 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 9/5. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — HAN
May 6 — May 131
Tue 5/6
Tue 5/13
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 May 1, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$729
(United Airlines)

One-way from

$333
(FlightHub)

Popular in

December

Cheapest in

February

Average price

$1,073
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. 6% potential increase in price ($67 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 May 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 May 1, 2025.

This FlightHub deal was found by Cheapflights users on 4/30. 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 9/2411:35 pmSEA - HAN
1 stop35h 10mPhilippine Airlines
Tue 10/212:30 amHAN - SEA
1 stop30h 45mPhilippine Airlines
Deal found 4/30$692
This oojo deal was found by Cheapflights users on 4/30. 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 9/31:30 pmSEA - HAN
1 stop18h 20mJapan Airlines
Fri 9/197:20 pmHAN - SEA
2 stops29h 05mJapan Airlines
Deal found 4/30$720
This FlightHub deal was found by Cheapflights users on 4/30. 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 8/3110:15 amSEA - HAN
1 stop35h 15mSingapore Airlines
Sat 9/2712:40 pmHAN - SEA
1 stop34h 05mSingapore Airlines
Deal found 4/30$721
This United Airlines deal was found by Cheapflights users on 5/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/85:05 amSEA - HAN
2 stops27h 10mUnited Airlines
Tue 5/2011:35 pmHAN - SEA
1 stop28h 50mUnited Airlines
Deal found 5/1$729
This oojo deal was found by Cheapflights users on 5/1. 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.
Thu 9/251:15 amSEA - HAN
1 stop25h 35mSTARLUX Airlines
Sun 10/1211:25 amHAN - SEA
1 stop18h 45mSTARLUX Airlines
Deal found 5/1$761
This oojo deal was found by Cheapflights users on 4/30. 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 9/221:10 amSEA - HAN
1 stop25h 40mChina Airlines
Thu 10/235:50 pmHAN - SEA
1 stop15h 30mChina Airlines
Deal found 4/30$768
This oojo deal was found by Cheapflights users on 5/1. 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.
Thu 5/812:50 pmSEA - HAN
1 stop18h 45mKorean Air
Tue 5/2011:10 pmHAN - SEA
1 stop25h 30mKorean Air
Deal found 5/1$800
This oojo deal was found by Cheapflights users on 4/30. 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 10/712:30 amSEA - HAN
1 stop26h 20mEVA Air
Wed 10/2912:35 pmHAN - SEA
1 stop20h 35mEVA Air
Deal found 4/30$804
This FlightHub deal was found by Cheapflights users on 4/30. 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 9/242:15 pmSEA - HAN
1 stop17h 45mAsiana Airlines
Thu 10/231:25 pmHAN - SEA
1 stop37h 05mAsiana Airlines
Deal found 4/30$814
This Ovago deal was found by Cheapflights users on 4/30. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/296:15 amSEA - HAN
2 stops29h 05mChina Eastern
Wed 6/42:20 amHAN - SEA
2 stops28h 25mChina Eastern
Deal found 4/30$871
This KAYAK deal was found by Cheapflights users on 4/30. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/87:00 amSEA - HAN
2 stops25h 15mMultiple Airlines
Wed 5/2112:40 amHAN - SEA
1 stop27h 45mMultiple Airlines
Deal found 4/30$934
This FlightHub deal was found by Cheapflights users on 4/30. 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 10/17:34 pmPDX - HAN
2 stops24h 36mSTARLUX Airlines
Sun 10/1211:25 amHAN - PDX
2 stops25h 01mSTARLUX Airlines
Deal found 4/30$934

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 1, 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

Wed 9/24

11:35 pm-12:45 am

1 stop35h 10m

Hanoi Noibai

Tue 10/21

2:30 am-7:15 pm

1 stop30h 45m

$692

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Wed 9/3

1:30 pm-9:50 pm

1 stop18h 20m

Hanoi Noibai

Fri 9/19

7:20 pm-10:25 am

2 stops29h 05m

$720

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Sun 8/31

10:15 am-11:30 am

1 stop35h 15m

Hanoi Noibai

Sat 9/27

12:40 pm-8:45 am

1 stop34h 05m

$721

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Tue 9/23

6:45 am-10:15 pm

2 stops25h 30m

Hanoi Noibai

Sun 10/26

12:25 am-8:49 pm

3 stops34h 24m

$732

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Thu 9/25

1:15 am-4:50 pm

1 stop25h 35m

Hanoi Noibai

Sun 10/12

11:25 am-4:10 pm

1 stop18h 45m

$761

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Mon 9/22

1:10 am-4:50 pm

1 stop25h 40m

Hanoi Noibai

Thu 10/23

5:50 pm-7:20 pm

1 stop15h 30m

$768

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Tue 9/2

12:50 pm-10:40 am

1 stop31h 50m

Hanoi Noibai

Tue 9/9

12:00 pm-10:40 am

1 stop36h 40m

$800

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Tue 10/7

12:30 am-4:50 pm

1 stop26h 20m

Hanoi Noibai

Wed 10/29

12:35 pm-7:10 pm

1 stop20h 35m

$804

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Wed 9/24

2:15 pm-10:00 pm

1 stop17h 45m

Hanoi Noibai

Thu 10/23

1:25 pm-12:30 pm

1 stop37h 05m

$814

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Thu 5/29

6:15 am-1:20 am

2 stops29h 05m

Hanoi Noibai

Wed 6/4

2:20 am-4:45 pm

2 stops28h 25m

$871

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 37 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 May 1, 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 May 1, 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
161 reviews

Food

8.9

Boarding

9.0

Crew

9.3

Comfort

9.0

Overall

9.1

Entertainment

9.0

Reviews

1 / 6
10.0
Excellent

Anonymous,Apr 2025

KIX - TPE

Very pleasant experience overall, while the main course of the meal could have been better and the movies could have been more recent and with more variety. They offer blindfolds and earplugs, which are a plus.
STARLUX Airlines
9.1
Wonderful
161 reviews
STARLUX Airlines
9.1
Wonderful
161 reviews

Food

8.9

Boarding

9.0

Crew

9.3

Comfort

9.0

Overall

9.1

Entertainment

9.0

Reviews

1 / 6
10.0
Excellent

Anonymous,Apr 2025

KIX - TPE

Very pleasant experience overall, while the main course of the meal could have been better and the movies could have been more recent and with more variety. They offer blindfolds and earplugs, which are a plus.
EVA Air
8.4
Very good
1,186 reviews
STARLUX Airlines
9.1
Wonderful
161 reviews

Food

8.9

Boarding

9.0

Crew

9.3

Comfort

9.0

Overall

9.1

Entertainment

9.0

Reviews

1 / 6
10.0
Excellent

Anonymous,Apr 2025

KIX - TPE

Very pleasant experience overall, while the main course of the meal could have been better and the movies could have been more recent and with more variety. They offer blindfolds and earplugs, which are a plus.
Korean Air
8.4
Very good
1,069 reviews
STARLUX Airlines
9.1
Wonderful
161 reviews

Food

8.9

Boarding

9.0

Crew

9.3

Comfort

9.0

Overall

9.1

Entertainment

9.0

Reviews

1 / 6
10.0
Excellent

Anonymous,Apr 2025

KIX - TPE

Very pleasant experience overall, while the main course of the meal could have been better and the movies could have been more recent and with more variety. They offer blindfolds and earplugs, which are a plus.
Japan Airlines
8.3
Very good
1,464 reviews
STARLUX Airlines
9.1
Wonderful
161 reviews

Food

8.9

Boarding

9.0

Crew

9.3

Comfort

9.0

Overall

9.1

Entertainment

9.0

Reviews

1 / 6
10.0
Excellent

Anonymous,Apr 2025

KIX - TPE

Very pleasant experience overall, while the main course of the meal could have been better and the movies could have been more recent and with more variety. They offer blindfolds and earplugs, which are a plus.
China Airlines
8.3
Very good
732 reviews
STARLUX Airlines
9.1
Wonderful
161 reviews

Food

8.9

Boarding

9.0

Crew

9.3

Comfort

9.0

Overall

9.1

Entertainment

9.0

Reviews

1 / 6
10.0
Excellent

Anonymous,Apr 2025

KIX - TPE

Very pleasant experience overall, while the main course of the meal could have been better and the movies could have been more recent and with more variety. They offer blindfolds and earplugs, which are a plus.

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 ($333), Japan Airlines ($383), and United Airlines ($394).

  • 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

See prices for flight routes from nearby airports that may be better suited for you.
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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 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest$628Average$1,083FlexibilityNo cancel feeOn-time81%
Asiana AirlinesCheapest$639Average$769FlexibilityNo cancel feeOn-time76%
Korean AirCheapest$760Average$923FlexibilityNo cancel feeOn-time81%
DeltaCheapest$764Average$965FlexibilityNo cancel feeOn-timeN/A
Japan AirlinesCheapest$765Average$891FlexibilityNo cancel feeOn-time79%
China AirlinesCheapest$767Average$863FlexibilityNo cancel feeOn-time70%
EVA AirCheapest$808Average$1,001FlexibilityNo cancel feeOn-time74%
STARLUX AirlinesCheapest$853Average$909FlexibilityNo cancel feeOn-timeN/A

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