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$782+ Cheap flights from Santa Rosa (STS) 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 4/26. Fares are subject to change and may not be available on all flights or dates of travel.
STS — HAN
Apr 16 — Apr 231
Wed 4/16
Wed 4/23
1 adult, Economy
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Cheap flight deals from Santa Rosa to Hanoi

Discover tips and strategies to find the most affordable flight options for your journey from Santa Rosa (STS) 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 April 11, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,436
(KAYAK)

One-way from

$782
(Singapore Airlines)

Popular in

December

Cheapest in

March

Average price

$837
Provider with most accurate pricing for Santa Rosa Sonoma County-Hanoi Noibai flight deals.
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Provider most trusted by Cheapflights users for Santa Rosa Sonoma County-Hanoi Noibai flights.
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From Santa Rosa Sonoma County to Hanoi Noibai
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One-way flight from Santa Rosa Sonoma County to Hanoi Noibai
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Highest demand for flights based on searches. 4% potential increase in price ($46 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($38 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from Santa Rosa to Hanoi

Cheapest flights from Santa Rosa to Hanoi
Explore the most affordable flight options available from Santa Rosa to Hanoi. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 11, 2025.

This KAYAK deal was found by Cheapflights users on 4/10. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/2612:45 pmSTS - HAN
2 stops32h 45mSingapore Airlines
Fri 5/212:40 pmHAN - STS
2 stops36h 24mSingapore Airlines
Deal found 4/10$1,436
This KAYAK deal was found by Cheapflights users on 4/10. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/267:00 amSTS - HAN
2 stops24h 50mJapan Airlines
Wed 4/3011:20 pmHAN - STS
2 stops36h 13mJapan Airlines
Deal found 4/10$1,886
This Qatar Airways deal was found by Cheapflights users on 4/10. 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.
Sat 4/197:00 amSTS - HAN
2 stops40h 55mQatar Airways
Sat 5/38:45 amHAN - STS
2 stops48h 19mQatar Airways
Deal found 4/10$2,607

Cheapflights Fare Finder

Customize your flight search to find flights from Santa Rosa 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 April 11, 2025.
Use the filters below to find and compare flights from Santa Rosa to Hanoi that are best for you.

Fly from

Santa Rosa

Fly to

Hanoi

Route

Depart

Return

Price

Santa RosaHanoi

STS - HAN

STSHAN

Santa Rosa Sonoma County

Sat 4/26

12:45 pm-11:30 am

2 stops32h 45m

Hanoi Noibai

Fri 5/2

12:40 pm-11:04 am

2 stops36h 24m

$1,436

Santa RosaHanoi

STS - HAN

STSHAN

Santa Rosa Sonoma County

Sat 4/26

7:00 am-9:50 pm

2 stops24h 50m

Hanoi Noibai

Wed 4/30

11:20 pm-9:33 pm

2 stops36h 13m

$1,886

Santa RosaHanoi

STS - HAN

STSHAN

Santa Rosa Sonoma County

Wed 4/23

12:45 pm-7:15 am

2 stops28h 30m

Hanoi Noibai

Thu 5/1

8:45 am-9:33 pm

2 stops50h 48m

$2,641

Santa RosaHanoi

STS - HAN

STSHAN

Santa Rosa Sonoma County

Sat 4/26

12:45 pm-11:30 am

2 stops32h 45m

$782

Santa RosaHanoi

STS - HAN

STSHAN

Santa Rosa Sonoma County

Sun 4/20

7:00 am-7:15 am

2 stops34h 15m

$1,617

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/10

Compare providers for flights from Santa Rosa 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 Santa Rosa to Hanoi in April.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy1 starTrust 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 Santa Rosa-Hanoi flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Santa Rosa-Hanoi flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Santa Rosa-Hanoi flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Santa Rosa-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 Santa Rosa-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 Santa Rosa to Hanoi

Have a flexible travel schedule? Discover the best time to fly to Hanoi from Santa Rosa 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 Santa Rosa to Hanoi

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

Currently, September is the cheapest month in which you can book a flight from Santa Rosa to Hanoi (average of $975). Flying from Santa Rosa 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.

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 April 11, 2025.
Read through reviews of airlines operating flights from Santa Rosa to Hanoi, such as Japan Airlines, Singapore Airlines and Qatar Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Japan Airlines
8.3
Very good
1,440 reviews

Boarding

8.4

Comfort

8.2

Food

7.7

Overall

8.3

Entertainment

7.8

Crew

8.7

Reviews

1 / 20
10.0
Excellent

L,Nov 2024

SNA - SEA

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.
Japan Airlines
8.3
Very good
1,440 reviews
Japan Airlines
8.3
Very good
1,440 reviews

Boarding

8.4

Comfort

8.2

Food

7.7

Overall

8.3

Entertainment

7.8

Crew

8.7

Reviews

1 / 20
10.0
Excellent

L,Nov 2024

SNA - SEA

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.
Singapore Airlines
8.1
Very good
1,288 reviews
Japan Airlines
8.3
Very good
1,440 reviews

Boarding

8.4

Comfort

8.2

Food

7.7

Overall

8.3

Entertainment

7.8

Crew

8.7

Reviews

1 / 20
10.0
Excellent

L,Nov 2024

SNA - SEA

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.
Qatar Airways
7.4
Good
3,550 reviews
Japan Airlines
8.3
Very good
1,440 reviews

Boarding

8.4

Comfort

8.2

Food

7.7

Overall

8.3

Entertainment

7.8

Crew

8.7

Reviews

1 / 20
10.0
Excellent

L,Nov 2024

SNA - SEA

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.

Related info for your journey

Find useful and relevant information for your journey from Santa Rosa to Hanoi. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

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

  • How can I find direct flights from Santa Rosa to Hanoi?

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

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

    Yes. Cheapflights offers flight deals from Santa Rosa 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 Santa Rosa to Hanoi?

    Currently, September is the cheapest month in which you can book a flight from Santa Rosa to Hanoi (average of $975). Flying from Santa Rosa 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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