The cheapest times to fly from STS to HAN are

  • January 29th to April 22nd
  • September 3rd to December 9th

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from STS to HAN is early November. Prices can be as high as $2366 for Saturday flights during early August, or as low as $836 for Wednesday flights around early November.


When to Fly to Hanoi

Flying from Santa Rosa, CA (STS) to Hanoi (HAN) will usually cost between $960 to $1825 per person if booking more than four weeks in advance. On average the very cheapest time to fly is early November with an average ticket price of $988. Due to high demand the most expensive time to fly is early August, with an average price of $1733. Planning your trip to low-cost times can easily save you $745 on economy flights and even more on first-class flights. Generally, any price below $1209 can be considered a good price for a round-trip STS to HAN flight.

See below for a graph of average weekly prices for the STS to HAN route. All prices are for round-trip tickets in USD.

STS to HAN Flight Prices

Compared to other flights, the STS to HAN flight is slightly more expensive than the average and costs about as much as the average flight leaving from Santa Rosa. The average price per mile (for a direct flight) is $0.1, which is far below average.


Flight Prices by Day of the Week

Wednesday is usually the cheapest day to depart and return on this flight. Saturdays are the most expensive days to fly to Hanoi, and Sundays are the most expensive days to return to Santa Rosa. Selecting flights on the least expensive days could save you up to $308 (20%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Wednesday and returning a week later will cost an average of $1137. Return trip prices are from the HAN to STS flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

Departure Day Prices

Return Trip Prices by Day

Return Day Prices


Nonstop Flights and Layovers

Travelers looking to fly from STS to HAN can generally find a 2-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 14 hour 1 minutes may not be realistic.


Flight Hacking STS to HAN

Flight hacking is when you book two tickets instead of a layover, sometimes with different airlines. You will need to either bring only a carry-on bag (highly recommended) or leave yourself plenty of time to go through security again. Flight hacking is completely allowed, but airlines don’t always tell you the cheapest way to get from STS to HAN — but Champion Traveler does!

Hack #1: Los Angeles, CA (STS > LAX > HAN)

  • Price for both tickets: $889
  • Average savings: $320 (26.48%)

See STS to LAX flights

Hack #2: Seattle, WA (STS > SEA > HAN)

  • Price for both tickets: $982
  • Average savings: $227 (18.74%)

See STS to SEA flights

Hack #3: San Francisco, CA (STS > SFO > HAN)

  • Price for both tickets: $997
  • Average savings: $212 (17.54%)

See STS to SFO flights


Flight Questions Answered

Still have questions about flying from STS to HAN? We’ve got answers.

Which airlines fly this route?

You can find 15 major airlines flying this route most often: Alaska, American, ANA, Asiana, Cathay Dragon, Cathay Pacific, China Airlines, China Southern, Delta, Emirates, EVA Air, JAL, Singapore Airlines, United, Vietnam Airlines, and potentially more during busy seasons.

How far away is it from Noibai International Airport to Charles M. Schulz – Sonoma County Airport?

The distance between the two airports is roughly 7245 miles or 11660 kilometers.

How long does it take to fly from STS to HAN?

The real-world flight time for a nonstop STS to HAN flight is about 14 hour 1 minutes.

How many flights go between Santa Rosa, CA and Hanoi?

It depends on the day of the week and the date, but a typical day might have around 18 available flights from STS to HAN.


Airport Location Info


Departing Airport

Origination code STS
Origination airport name Charles M. Schulz – Sonoma County Airport
City Santa Rosa, CA
Country the United States
Latitude 38.5
Longitude -122.8

Return Airport

Destination code HAN
Destination airport name Noibai International Airport
City Hanoi
Country Vietnam
Latitude 21.2
Longitude 105.8


Other Resources

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.