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$365+ Cheap flights from Seattle (SEA) 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 2/7. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — HAN
Dec 23 — Dec 301
Mon 12/23
Mon 12/30
1 adult, Economy
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The best prices from Seattle/Tacoma Intl to Hanoi Noibai are usually found in February or October, booked 86 days in advance, depart on a Tuesday or Friday and return on a Sunday

Cheap flight deals from Seattle to Hanoi

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Hanoi (HAN). 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 December 18, 2024.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$684
(Gotogate)

One-way from

$365
(CrystalTravel)

Popular in

June

Cheapest in

February

Average price

$1,496
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 Seattle/Tacoma Intl to Hanoi Noibai
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One-way flight from Seattle/Tacoma Intl to Hanoi Noibai
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High demand for flights, 21% potential price rise
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Best time to find cheap flights, 3% potential price drop
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Average for round-trip flights in December 2024
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Find flight deals from Seattle to Hanoi

Cheapest flights from Seattle to Hanoi
Explore the most affordable flight options available from Seattle to Hanoi. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2024.

This Orbitz deal was found by Cheapflights users on 12/18. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2811:00 amSEA - HAN
1 stop33h 10mKorean Air
Mon 1/2011:00 pmHAN - SEA
1 stop29h 19mKorean Air
Deal found 12/18$1,024
This Gurufare deal was found by Cheapflights users on 12/18. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/283:40 pmSEA - HAN
1 stop40h 25mANA
Sun 1/1912:25 amHAN - SEA
1 stop27h 55mANA
Deal found 12/18$1,079
This Priceline deal was found by Cheapflights users on 12/18. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2811:00 amSEA - HAN
1 stop33h 10mMultiple Airlines
Mon 1/2011:55 pmHAN - SEA
2 stops32h 04mMultiple Airlines
Deal found 12/18$1,178
This CheapOair deal was found by Cheapflights users on 12/17. 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 12/3112:45 pmSEA - HAN
1 stop18h 40mAsiana Airlines
Tue 1/71:30 pmHAN - SEA
1 stop36h 25mAsiana Airlines
Deal found 12/17$1,409
This Delta deal was found by Cheapflights users on 12/16. 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.
Sat 12/2811:00 amSEA - HAN
1 stop33h 10mDelta
Wed 1/112:20 pmHAN - SEA
1 stop15h 59mDelta
Deal found 12/16$1,630
This Gotogate deal was found by Cheapflights users on 12/17. 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.
Mon 12/3012:10 amSEA - HAN
1 stop25h 25mChina Airlines
Tue 1/75:10 pmHAN - SEA
1 stop16h 05mChina Airlines
Deal found 12/17$1,717
This oojo deal was found by Cheapflights users on 12/17. 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 12/3012:10 amSEA - HAN
1 stop20h 25mEVA Air
Tue 1/76:20 pmHAN - SEA
1 stop14h 50mEVA Air
Deal found 12/17$1,757
This FlightHub deal was found by Cheapflights users on 12/18. 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.
Sat 12/287:59 pmSEA - HAN
2 stops54h 36mSingapore Airlines
Mon 1/2012:35 pmHAN - SEA
3 stops60h 56mSingapore Airlines
Deal found 12/18$1,889
This Justfly.com deal was found by Cheapflights users on 12/16. 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.
Thu 12/267:15 pmSEA - HAN
2 stops32h 10mAir Canada
Sun 1/57:25 pmHAN - SEA
2 stops29h 25mAir Canada
Deal found 12/16$2,294
This United Airlines deal was found by Cheapflights users on 12/18. 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 12/2712:32 pmSEA - HAN
2 stops43h 33mUnited Airlines
Sat 1/411:50 pmHAN - SEA
2 stops50h 40mUnited Airlines
Deal found 12/18$2,888
This FlightHub deal was found by Cheapflights users on 12/16. 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 12/277:00 pmSEA - HAN
1 stop29h 25mTurkish Airlines
Sun 1/510:30 pmHAN - SEA
1 stop33h 35mTurkish Airlines
Deal found 12/16$3,056
This Gurufare deal was found by Cheapflights users on 12/16. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/265:54 pmSEA - HAN
2 stops33h 31mCathay Pacific
Sat 1/47:25 pmHAN - SEA
2 stops34h 01mCathay Pacific
Deal found 12/16$3,077

Find flights from Seattle to Hanoi within your budget

Customize your flight search to find flights from Seattle 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 December 18, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Wed 2/19

12:45 pm-12:10 pm

1 stop32h 25m

Hanoi Noibai

Thu 3/6

1:30 pm-10:55 am

1 stop36h 25m

$684

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Tue 1/14

10:41 am-9:40 pm

1 stop19h 59m

Hanoi Noibai

Mon 1/20

11:00 pm-1:19 pm

1 stop29h 19m

$764

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Thu 3/20

12:00 pm-9:40 pm

1 stop19h 40m

Hanoi Noibai

Mon 3/31

11:10 pm-10:50 am

1 stop25h 40m

$768

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Tue 1/14

10:41 am-9:40 pm

1 stop19h 59m

Hanoi Noibai

Mon 1/20

11:00 pm-1:19 pm

1 stop29h 19m

$771

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Sun 3/16

1:10 am-10:35 am

1 stop19h 25m

Hanoi Noibai

Mon 3/31

11:35 am-7:30 pm

1 stop21h 55m

$814

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Wed 4/23

1:15 am-10:10 am

1 stop18h 55m

Hanoi Noibai

Fri 5/2

11:10 am-4:10 pm

1 stop19h 00m

$824

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Mon 4/14

7:15 am-10:15 pm

2 stops25h 00m

Hanoi Noibai

Mon 4/28

11:35 pm-3:58 pm

2 stops30h 23m

$847

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Tue 2/18

12:10 am-11:35 am

1 stop20h 25m

Hanoi Noibai

Thu 3/6

12:35 pm-6:10 pm

1 stop20h 35m

$857

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Mon 2/10

7:24 pm-10:30 pm

2 stops36h 06m

Hanoi Noibai

Mon 2/24

11:55 pm-4:59 pm

2 stops32h 04m

$878

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Tue 4/22

5:15 am-10:15 pm

2 stops27h 00m

Hanoi Noibai

Thu 5/1

11:35 pm-9:28 pm

2 stops35h 53m

$892

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 27 results
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Compare providers for flights from Seattle to Hanoi

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Hanoi in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*2 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Seattle-Hanoi flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Hanoi flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Hanoi flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Hanoi flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Hanoi flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Seattle to Hanoi

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

Travel insights for flights from Seattle to Hanoi

Get recent, data-driven insights about flights from Seattle to Hanoi including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Seattle to Hanoi?

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Hanoi. Price data was last updated on December 13, 2024.

To ensure you get the cheapest price possible for a flight from Seattle to Hanoi, you should look to book at least 86 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.

What is the cheapest month to book a flight from Seattle to Hanoi?

Currently, September is the cheapest month in which you can book a flight from Seattle to Hanoi (average of $975). Flying from Seattle to Hanoi in June is currently the most expensive (average of $1,596). 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 SEA to HAN?

Find hourly flight availability from Seattle 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 December 18, 2024.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 14% on flights from Seattle to Hanoi by exploring options for tickets in the morning.

What is the cheapest day to fly from Seattle to Hanoi?

Use this chart to determine the cheapest time to fly round-trip from Seattle to Hanoi. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Seattle to Hanoi flight should consider departing on Tuesday mornings when fares are most often at their lowest. Monday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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 December 18, 2024.
To help decide which airline to fly from Seattle to Hanoi, see what other customers have to say about Asiana Airlines, United Airlines and Singapore Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
STARLUX Airlines
9.1
Wonderful
129 reviews

Crew

9.3

Food

8.9

Entertainment

9.1

Overall

9.1

Boarding

9.1

Comfort

9.0

Reviews

1 / 3

Delicious food! I thought my first leg from SFO to Taipei was good, but this second from Taipei to Sapporo was even better. I liked the configuration of the plane 2 x 3 x 2. Although I wish it was made clear that folks needed to have their seats up during meal times. I had to remind the individual in front of me each time, which was awkward.

STARLUX Airlines
9.1
Wonderful
129 reviews
STARLUX Airlines
9.1
Wonderful
129 reviews

Crew

9.3

Food

8.9

Entertainment

9.1

Overall

9.1

Boarding

9.1

Comfort

9.0

Reviews

1 / 3

Delicious food! I thought my first leg from SFO to Taipei was good, but this second from Taipei to Sapporo was even better. I liked the configuration of the plane 2 x 3 x 2. Although I wish it was made clear that folks needed to have their seats up during meal times. I had to remind the individual in front of me each time, which was awkward.

EVA Air
8.4
Very good
1,273 reviews
STARLUX Airlines
9.1
Wonderful
129 reviews

Crew

9.3

Food

8.9

Entertainment

9.1

Overall

9.1

Boarding

9.1

Comfort

9.0

Reviews

1 / 3

Delicious food! I thought my first leg from SFO to Taipei was good, but this second from Taipei to Sapporo was even better. I liked the configuration of the plane 2 x 3 x 2. Although I wish it was made clear that folks needed to have their seats up during meal times. I had to remind the individual in front of me each time, which was awkward.

Korean Air
8.4
Very good
1,018 reviews
STARLUX Airlines
9.1
Wonderful
129 reviews

Crew

9.3

Food

8.9

Entertainment

9.1

Overall

9.1

Boarding

9.1

Comfort

9.0

Reviews

1 / 3

Delicious food! I thought my first leg from SFO to Taipei was good, but this second from Taipei to Sapporo was even better. I liked the configuration of the plane 2 x 3 x 2. Although I wish it was made clear that folks needed to have their seats up during meal times. I had to remind the individual in front of me each time, which was awkward.

ANA
8.4
Very good
839 reviews
STARLUX Airlines
9.1
Wonderful
129 reviews

Crew

9.3

Food

8.9

Entertainment

9.1

Overall

9.1

Boarding

9.1

Comfort

9.0

Reviews

1 / 3

Delicious food! I thought my first leg from SFO to Taipei was good, but this second from Taipei to Sapporo was even better. I liked the configuration of the plane 2 x 3 x 2. Although I wish it was made clear that folks needed to have their seats up during meal times. I had to remind the individual in front of me each time, which was awkward.

Japan Airlines
8.3
Very good
1,443 reviews
STARLUX Airlines
9.1
Wonderful
129 reviews

Crew

9.3

Food

8.9

Entertainment

9.1

Overall

9.1

Boarding

9.1

Comfort

9.0

Reviews

1 / 3

Delicious food! I thought my first leg from SFO to Taipei was good, but this second from Taipei to Sapporo was even better. I liked the configuration of the plane 2 x 3 x 2. Although I wish it was made clear that folks needed to have their seats up during meal times. I had to remind the individual in front of me each time, which was awkward.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Hanoi. 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 Seattle to Hanoi round-trip?

    Our cheapest airline available from Seattle to Hanoi is Asiana Airlines. Our recent data shows that you can find tickets from as low as $684 on this airline. Additional options worth looking into are Delta and Korean Air, starting at $764 and $768 round-trip. Asiana Airlines is priced at 39% lower than the current average price of a flight leaving 3 months from now.

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

    $365 is the cheapest one-way deal found within the past few days, from Asiana Airlines. You may also be able to find cheap deals on ANA and United Airlines, with prices starting from $466 and $487, respectively.

  • Where are the most common layover locations when flying from Seattle to Hanoi?

    Most of the time, Seattle to Hanoi flights that have layovers will stop in Incheon. Seattle to Hanoi flights stop in Taipei City the next most.

  • What are some popular things to do or see while on a layover in Incheon?

    Wolmido Amusement Park, G Tower, and Moraenae Market are the most popular attractions in Incheon if you're in need of something to do during your layover. Wolmido Amusement Park, G Tower, and Moraenae Market can be visited by traveling about 8.3 mi, 10.7 mi, and 14.7 mi respectively from Incheon Intl. Travelers can book a car rental at Incheon Intl for about $60 per day to make their sightseeing more efficient.

  • What are some popular points of interest to see during a layover in Taipei City?

    The majority of Taipei City visitors spend their time at Taipei 101, Shilin Night Market, and Raohe Street Night Market. Taipei 101, Shilin Night Market, and Raohe Street Night Market can be accessed by traveling approximately 21.0 mi, 18.3 mi, and 21.6 mi, respectively from Taipei City Taiwan Taoyuan Intl. Travelers can book a car rental at Taipei City Taiwan Taoyuan Intl for about $85 per day to make their sightseeing more efficient.

  • Where are the least popular layover locations for Seattle to Hanoi flights?

    Of the flights from Seattle to Hanoi that have layovers, the fewest flights stop in Tokyo.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Seattle 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 Seattle to Hanoi?

    Currently, September is the cheapest month in which you can book a flight from Seattle to Hanoi (average of $975). Flying from Seattle to Hanoi in June is currently the most expensive (average of $1,596). 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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Top 8 airlines flying from Seattle to Hanoi

Discover the top 8 airlines that operate flights from Seattle 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 December 18, 2024.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest$583Average$1,007FlexibilityNo cancel feeOn-time81%
Asiana AirlinesCheapest$674Average$889FlexibilityNo cancel feeOn-time76%
DeltaCheapest$764Average$1,212FlexibilityNo cancel feeOn-timeN/A
China AirlinesCheapest$787Average$865FlexibilityNo cancel feeOn-time70%
Korean AirCheapest$797Average$1,242FlexibilityNo cancel feeOn-time81%
Japan AirlinesCheapest$818Average$1,070FlexibilityNo cancel feeOn-time79%
STARLUX AirlinesCheapest$854Average$939FlexibilityNo cancel feeOn-timeN/A
EVA AirCheapest$931Average$1,372FlexibilityNo cancel feeOn-time74%
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