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$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 10/25. Fares are subject to change and may not be available on all flights or dates of travel.
HAN — SEA
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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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 June 12, 2025.

Round-trip from

$865
(FlightHub)

One-way from

$421
(Singapore Airlines)

Popular in

August

Cheapest in

September

Average price

$869
From Hanoi Noibai to Seattle/Tacoma Intl
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One-way flight from Hanoi Noibai to Seattle/Tacoma Intl
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Highest demand for flights based on searches. 14% potential increase in price ($172 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($37 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 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 June 12, 2025.

This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/192:30 amHAN - SEA
1 stop30h 45mPhilippine Airlines
Sun 11/2311:55 pmSEA - HAN
1 stop34h 55mPhilippine Airlines
Deal found 6/10$865
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2112:05 pmHAN - SEA
1 stop21h 45mEVA Air
Mon 11/2412:10 amSEA - HAN
1 stop26h 05mEVA Air
Deal found 6/10$894
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 8/205:50 pmHAN - SEA
1 stop36h 45mSTARLUX Airlines
Mon 11/2411:45 pmSEA - HAN
1 stop26h 40mSTARLUX Airlines
Deal found 6/10$908
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 8/205:50 pmHAN - SEA
2 stops28h 17mChina Airlines
Sun 11/2312:10 amSEA - HAN
1 stop19h 25mChina Airlines
Deal found 6/10$942
This Asiana Airlines 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 Asiana Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/191:25 pmHAN - SEA
1 stop37h 20mAsiana Airlines
Fri 11/2112:10 amSEA - HAN
1 stop22h 00mAsiana Airlines
Deal found 6/10$970
This EVA Air 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 EVA Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/112:05 pmHAN - SEA
1 stop21h 45mMultiple Airlines
Mon 8/188:26 pmSEA - HAN
2 stops24h 39mMultiple Airlines
Deal found 6/10$1,006
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/111:35 pmHAN - SEA
2 stops35h 22mUnited Airlines
Mon 8/1812:40 pmSEA - HAN
2 stops43h 35mUnited Airlines
Deal found 6/11$1,032
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1912:40 amHAN - SEA
2 stops28h 34mANA
Mon 11/243:40 pmSEA - HAN
2 stops30h 45mANA
Deal found 6/10$1,124
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2111:10 pmHAN - SEA
1 stop28h 51mDelta
Tue 11/256:15 amSEA - HAN
2 stops37h 55mDelta
Deal found 6/10$1,166
This Qatar Airways 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/217:30 pmHAN - SEA
2 stops39h 07mQatar Airways
Sat 11/223:40 pmSEA - HAN
1 stop24h 15mQatar Airways
Deal found 6/10$1,402
This Singapore Airlines 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 Singapore Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2212:40 pmHAN - SEA
2 stops49h 19mSingapore Airlines
Sat 11/229:25 pmSEA - HAN
2 stops53h 10mSingapore Airlines
Deal found 6/10$1,520
This Japan Airlines 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2211:20 pmHAN - SEA
2 stops36h 13mJapan Airlines
Sun 11/236:15 amSEA - HAN
2 stops25h 15mJapan Airlines
Deal found 6/10$1,610

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 June 12, 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

Tue 8/19

2:30 am-7:15 pm

1 stop30h 45m

Seattle/Tacoma Intl

Sun 11/23

11:55 pm-1:50 am

1 stop34h 55m

$865

HanoiSeattle

HAN - SEA

HANSEA

Hanoi Noibai

Thu 8/21

12:05 pm-7:50 pm

1 stop21h 45m

Seattle/Tacoma Intl

Mon 11/24

12:10 am-5:15 pm

1 stop26h 05m

$894

HanoiSeattle

HAN - SEA

HANSEA

Hanoi Noibai

Wed 8/20

5:50 pm-4:35 pm

1 stop36h 45m

Seattle/Tacoma Intl

Mon 11/24

11:45 pm-5:25 pm

1 stop26h 40m

$908

HanoiSeattle

HAN - SEA

HANSEA

Hanoi Noibai

Wed 8/20

5:50 pm-8:07 am

2 stops28h 17m

Seattle/Tacoma Intl

Sun 11/23

12:10 am-10:35 am

1 stop19h 25m

$942

HanoiSeattle

HAN - SEA

HANSEA

Hanoi Noibai

Tue 8/19

1:25 pm-12:45 pm

1 stop37h 20m

Seattle/Tacoma Intl

Fri 11/21

12:10 am-1:10 pm

1 stop22h 00m

$970

HanoiSeattle

HAN - SEA

HANSEA

Hanoi Noibai

Fri 8/1

12:05 pm-7:50 pm

1 stop21h 45m

Seattle/Tacoma Intl

Mon 8/18

8:26 pm-11:05 am

2 stops24h 39m

$1,006

HanoiSeattle

HAN - SEA

HANSEA

Hanoi Noibai

Fri 8/1

11:35 pm-8:57 pm

2 stops35h 22m

Seattle/Tacoma Intl

Mon 8/18

12:40 pm-10:15 pm

2 stops43h 35m

$1,032

HanoiSeattle

HAN - SEA

HANSEA

Hanoi Noibai

Tue 8/19

12:40 am-3:14 pm

2 stops28h 34m

Seattle/Tacoma Intl

Mon 11/24

3:40 pm-1:25 pm

2 stops30h 45m

$1,124

HanoiSeattle

HAN - SEA

HANSEA

Hanoi Noibai

Thu 8/21

11:10 pm-2:01 pm

1 stop28h 51m

Seattle/Tacoma Intl

Tue 11/25

6:15 am-11:10 am

2 stops37h 55m

$1,166

HanoiSeattle

HAN - SEA

HANSEA

Hanoi Noibai

Thu 8/21

7:30 pm-8:37 pm

2 stops39h 07m

Seattle/Tacoma Intl

Sat 11/22

3:40 pm-6:55 am

1 stop24h 15m

$1,402

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/9

Showing 1-10 of 28 results
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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 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 July is currently the most expensive (average of $391). 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 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 June 12, 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.

Rainfall in Seattle by month

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

In terms of precipitation, rainfall in Seattle ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.

Temperature in Seattle by month

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

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

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 June 12, 2025.
STARLUX Airlines
9.1
Wonderful
177 reviews

Overall

9.1

Food

8.8

Boarding

9.0

Comfort

9.0

Entertainment

8.9

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

Overall

9.1

Food

8.8

Boarding

9.0

Comfort

9.0

Entertainment

8.9

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

Overall

9.1

Food

8.8

Boarding

9.0

Comfort

9.0

Entertainment

8.9

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
1,490 reviews
STARLUX Airlines
9.1
Wonderful
177 reviews

Overall

9.1

Food

8.8

Boarding

9.0

Comfort

9.0

Entertainment

8.9

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

Overall

9.1

Food

8.8

Boarding

9.0

Comfort

9.0

Entertainment

8.9

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.
ANA
8.3
Very good
882 reviews
STARLUX Airlines
9.1
Wonderful
177 reviews

Overall

9.1

Food

8.8

Boarding

9.0

Comfort

9.0

Entertainment

8.9

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 Hanoi to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    Currently priced at $865, Philippine Airlines will fly you from Hanoi to Seattle and back. In addition to Philippine Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from EVA Air and STARLUX Airlines - these airlines can fly you to your destination from $894 and $908, respectively. These flights start at 13% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Hanoi to Seattle one-way?

    For one-way options, check prices for Singapore Airlines. According to our data, you can fly for as low as $421. Users have also found prices from $445 and $494 on Philippine Airlines and STARLUX Airlines, respectively.

  • 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 July is currently the most expensive (average of $391). 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 Hanoi?

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

Browse thousands of different options on Cheapflights for your next trip

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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 Portland flights
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Da Nang 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Korean AirCheapest$769Average$1,105FlexibilityNo cancel feeOn-time81%
China AirlinesCheapest$797Average$898FlexibilityNo cancel feeOn-time70%
EVA AirCheapest$885Average$982FlexibilityNo cancel feeOn-time74%

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