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$1,363+ Cheap flights from Santa Rosa (STS) to Kathmandu (KTM)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/13. Fares are subject to change and may not be available on all flights or dates of travel.
STS — KTM
Oct 30 — Nov 61
Thu 10/30
Thu 11/6
1 adult, Economy
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Cheap flight deals from Santa Rosa to Kathmandu

Discover tips and strategies to find the most affordable flight options for your journey from Santa Rosa (STS) to Kathmandu (KTM). 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 September 30, 2025.

Most accurate provider

Expedia
2 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$1,363
(Indian Eagle)

Popular in

June

Cheapest in

August

Average price

$1,146
Provider with most accurate pricing for Santa Rosa Sonoma County-Kathmandu Tribhuvan flight deals.
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Provider most trusted by Cheapflights users for Santa Rosa Sonoma County-Kathmandu Tribhuvan flights.
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From Santa Rosa Sonoma County to Kathmandu Tribhuvan
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($77 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($31 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Santa Rosa to Kathmandu

Cheapest flights from Santa Rosa to Kathmandu
Explore the most affordable flight options available from Santa Rosa to Kathmandu. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 30, 2025.

This Indian Eagle deal was found by Cheapflights users on 9/29. 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 Indian Eagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/137:00 amSTS - KTM
2 stops46h 05mMultiple Airlines
Mon 10/207:05 pmKTM - STS
2 stops53h 41mMultiple Airlines
Deal found 9/29$1,363

Cheapflights Fare Finder

 
Customize your flight search to find flights from Santa Rosa to Kathmandu 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 September 30, 2025.
Use the filters below to find and compare flights from Santa Rosa to Kathmandu that are best for you.

Fly from

Santa Rosa

Fly to

Kathmandu

Route

Depart

Return

Price

Santa RosaKathmandu

STS - KTM

STSKTM

Santa Rosa Sonoma County

Mon 10/13

7:00 am-5:50 pm

2 stops46h 05m

Kathmandu Tribhuvan

Mon 10/20

7:05 pm-12:01 pm

2 stops53h 41m

$1,363

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/29

  • Most accurate provider: When it comes to deals on Santa Rosa-Kathmandu flights, users find the pricing of Expedia to be most consistent on Cheapflights vs. Expedia Users can find the same prices on Santa Rosa-Kathmandu flight deals on Cheapflights vs. Expedia 90-95% of the time. Price accuracy is based on data collected from Santa Rosa-Kathmandu flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Santa Rosa-Kathmandu flights, Cheapflights users trust Expedia the most. Expedia 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-Kathmandu 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 Kathmandu

Have a flexible travel schedule? Discover the best time to fly to Kathmandu 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 Kathmandu

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

Currently, August is the cheapest month in which you can book a flight from Santa Rosa to Kathmandu (average of $1,206). Flying from Santa Rosa to Kathmandu in June is currently the most expensive (average of $1,683). 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 Kathmandu. 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 Kathmandu that include hotel bookings?

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Santa Rosa to Kathmandu (average of $1,206). Flying from Santa Rosa to Kathmandu in June is currently the most expensive (average of $1,683). 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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