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$448+ 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 3/2. Fares are subject to change and may not be available on all flights or dates of travel.
STS — HAN
Mar 14 — Mar 211
Sat 3/14
Sat 3/21
1 adult, Economy
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Cheap 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 February 12, 2026.

This IEagle deal was found by Cheapflights users on 2/9. 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 IEagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/121:13 pm
STS
-
HAN
2 stops31h 22m
Multiple Airlines
Tue 5/195:50 pm
HAN
-
STS
2 stops32h 23m
Multiple Airlines
Deal found 2/9$995
This Philippine Airlines deal was found by Cheapflights users on 2/11. 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 Philippine Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/61:13 pm
STS
-
HAN
2 stops45h 32m
Multiple Airlines
Tue 5/121:45 am
HAN
-
STS
2 stops48h 28m
Multiple Airlines
Deal found 2/11$1,327
This Qatar Airways deal was found by Cheapflights users on 2/8. 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.
Sun 4/127:05 am
STS
-
HAN
2 stops35h 00m
Qatar Airways
Wed 4/159:35 am
HAN
-
STS
2 stops47h 38m
Qatar Airways
Deal found 2/8$1,746

Find 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 February 12, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$995
(IEagle)

One-way from

$448
(Japan Airlines)

Popular in

December

Cheapest in

September

Average price

$798
Provider with most accurate pricing for San Francisco-Hanoi Noibai flight deals.
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Provider most trusted by Cheapflights users for San Francisco-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. 12% potential increase in price ($126 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($54 potential savings vs. average RT price).
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Average for round-trip flights in February 2026
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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 February 12, 2026.
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

Tue 5/12

1:13 pm-10:35 am

2 stops31h 22m

Hanoi Noibai

Tue 5/19

5:50 pm-12:13 pm

2 stops32h 23m

$995

Santa RosaHanoi

STS - HAN

STSHAN

Santa Rosa Sonoma County

Wed 5/6

1:13 pm-12:45 am

2 stops45h 32m

Hanoi Noibai

Tue 5/12

1:45 am-12:13 pm

2 stops48h 28m

$1,327

Santa RosaHanoi

STS - HAN

STSHAN

Santa Rosa Sonoma County

Sun 4/12

7:05 am-8:05 am

2 stops35h 00m

Hanoi Noibai

Wed 4/15

9:35 am-7:13 pm

2 stops47h 38m

$1,746

Santa RosaHanoi

STS - HAN

STSHAN

Santa Rosa Sonoma County

Mon 3/2

7:57 pm-10:30 pm

2 stops35h 33m

$448

Santa RosaHanoi

STS - HAN

STSHAN

Santa Rosa Sonoma County

Sat 2/28

7:57 pm-10:30 pm

2 stops35h 33m

$874

Santa RosaHanoi

STS - HAN

STSHAN

Santa Rosa Sonoma County

Sun 3/1

7:57 pm-10:30 pm

2 stops35h 33m

$1,020

Santa RosaHanoi

STS - HAN

STSHAN

Santa Rosa Sonoma County

Sat 2/28

11:15 am-6:55 am

2 stops28h 40m

$1,122

Santa RosaHanoi

STS - HAN

STSHAN

Santa Rosa Sonoma County

Sun 3/1

7:00 am-12:20 pm

2 stops38h 20m

$1,164

Santa RosaHanoi

STS - HAN

STSHAN

Santa Rosa Sonoma County

Thu 2/26

7:00 am-10:30 pm

2 stops24h 30m

$1,170

Santa RosaHanoi

STS - HAN

STSHAN

Santa Rosa Sonoma County

Fri 2/27

7:57 pm-10:30 pm

2 stops35h 33m

$1,187

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/9

Showing 1-10 of 11 results
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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, August is the cheapest month in which you can book a flight from Santa Rosa to Hanoi (average of $497). Flying from Santa Rosa to Hanoi in July is currently the most expensive (average of $883). 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.

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.

  • How long is the flight from Santa Rosa to Hanoi?

    A quick flight from Santa Rosa to Hanoi can take about 35h. Qatar Airways provides one of the quickest options available for as low as $1,746. There are 7242 mi between Santa Rosa and Hanoi.

  • 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, August is the cheapest month in which you can book a flight from Santa Rosa to Hanoi (average of $497). Flying from Santa Rosa to Hanoi in July is currently the most expensive (average of $883). 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.

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