In terms of precipitation, rainfall in Kathmandu ranges from 0.0 - 14.6 inches per month. July is typically the wettest month, when rainfall can reach 14.6 in. November is typically the driest time to visit Kathmandu when rainfall is around 0.0 in.

If weather is an important factor for your trip to Kathmandu, 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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 50.0 F).

How far in advance should I book a flight from Santa Rosa to Kathmandu?

To save up to 35% on this flight, we recommend booking at least 52 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Santa Rosa to Kathmandu from $1,237 1-2 weeks out and tickets from $1,368 for flights departing within the next 72 hours.

What is the cheapest month to fly from Santa Rosa to Kathmandu?

The best pricing can be found in the month of August. Prices to Kathmandu from Santa Rosa average $1,253. You can even find prices in August for less than $1,253, as users have found deals to Kathmandu from as low as $801. The month of June appears to be one of the more expensive times to travel to Kathmandu from Santa Rosa. Flying in the targeted month can save you up to 27%.

What is the cheapest time of day to fly from STS to KTM?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Santa Rosa to Kathmandu as you normally would.

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.

$949+ Flights from Santa Rosa to Kathmandu

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Cheap flight deals from Santa Rosa to Kathmandu

Round-trip from	$1,551 (Qatar Airways)
One-way from	$949 (Singapore Airlines)
Popular in	June
Cheapest in	August
Average price	$1,195

From Santa Rosa Sonoma County to Kathmandu Tribhuvan

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One-way flight from Santa Rosa Sonoma County to Kathmandu Tribhuvan

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Highest demand for flights based on searches. 5% potential increase in price ($79 potential increase over avg. RT price).

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Cheapest flight prices on average. 2% potential price decrease ($32 potential savings vs. average RT price).

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Average for round-trip flights in July 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 July 29, 2025.

Tue 8/197:00 amSTS - KTM

2 stops37h 05mQatar Airways

Thu 8/2810:05 amKTM - STS

2 stops50h 39mQatar Airways

Deal found 7/29

$1,551

Tue 8/197:23 pmSTS - KTM

2 stops37h 27mSingapore Airlines

Thu 8/2810:50 pmKTM - STS

3 stops37h 54mSingapore Airlines

Deal found 7/29

$1,660

Thu 9/186:56 pmSTS - KTM

2 stops49h 09mMultiple Airlines

Fri 10/106:00 pmKTM - STS

2 stops40h 51mMultiple Airlines

Deal found 7/27

$1,764

Best flights from Santa Rosa to Kathmandu
Discover carefully curated flight deals from Santa Rosa to Kathmandu that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 29, 2025.

Tue 8/197:00 amSTS - KTM

2 stops37h 05mQatar Airways

Thu 8/2810:05 amKTM - STS

2 stops50h 39mQatar Airways

Deal found 7/29

$1,551

Tue 8/197:23 pmSTS - KTM

2 stops37h 27mSingapore Airlines

Thu 8/2810:50 pmKTM - STS

3 stops37h 54mSingapore Airlines

Deal found 7/29

$1,660

Thu 9/186:56 pmSTS - KTM

2 stops49h 09mMultiple Airlines

Fri 10/106:00 pmKTM - STS

2 stops40h 51mMultiple Airlines

Deal found 7/27

$1,764

Last-minute flights from Santa Rosa to Kathmandu
Discover last-minute flight deals from Santa Rosa to Kathmandu. Data last updated July 29, 2025 and is based on user searches.

Tue 8/197:00 amSTS - KTM

2 stops37h 05mQatar Airways

Thu 8/2810:05 amKTM - STS

2 stops50h 39mQatar Airways

Deal found 7/29

$1,551

Tue 8/197:23 pmSTS - KTM

2 stops37h 27mSingapore Airlines

Thu 8/2810:50 pmKTM - STS

3 stops37h 54mSingapore Airlines

Deal found 7/29

$1,660

One-way flights from Santa Rosa to Kathmandu
Search for one-way flight options from Santa Rosa to Kathmandu. Find affordable one-way fares based on user searches. Data last updated July 29, 2025.

Fri 10/107:00 amSTS - KTM

2 stops49h 50mSingapore Airlines

Deal found 7/27

$949

Thu 10/167:00 amSTS - KTM

2 stops46h 05mQatar Airways

Deal found 7/27

$975

Thu 10/97:00 amSTS - KTM

2 stops46h 05mMultiple Airlines

Deal found 7/27

$1,037

Cheapflights Fare Finder

Use the filters below to find and compare flights from Santa Rosa to Kathmandu that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Santa RosaKathmandu

STS - KTM

STSKTM

Santa Rosa Sonoma County

Tue 8/19

7:00 am-8:50 am

2 stops37h 05m

Kathmandu Tribhuvan

Thu 8/28

10:05 am-11:59 pm

2 stops50h 39m

$1,551

Santa RosaKathmandu

STS - KTM

STSKTM

Santa Rosa Sonoma County

Tue 8/19

7:23 pm-9:35 pm

2 stops37h 27m

Kathmandu Tribhuvan

Thu 8/28

10:50 pm-11:59 pm

3 stops37h 54m

$1,660

Santa RosaKathmandu

STS - KTM

STSKTM

Santa Rosa Sonoma County

Thu 9/18

6:56 pm-8:50 am

2 stops49h 09m

Kathmandu Tribhuvan

Fri 10/10

6:00 pm-10:06 pm

2 stops40h 51m

$1,764

Santa RosaKathmandu

STS - KTM

STSKTM

Santa Rosa Sonoma County

Fri 10/10

7:00 am-9:35 pm

2 stops49h 50m

$949

Santa RosaKathmandu

STS - KTM

STSKTM

Santa Rosa Sonoma County

Thu 10/16

7:00 am-5:50 pm

2 stops46h 05m

$975

Santa RosaKathmandu

STS - KTM

STSKTM

Santa Rosa Sonoma County

Thu 10/9

7:00 am-5:50 pm

2 stops46h 05m

$1,037

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

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, September is the cheapest month in which you can book a flight from Santa Rosa to Kathmandu (average of $1,237). Flying from Santa Rosa to Kathmandu in June is currently the most expensive (average of $1,684). 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.

Reviews of airlines servicing Kathmandu

Read reviews from past customers who have flown Singapore Airlines and Qatar Airways from Santa Rosa to Kathmandu. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Singapore Airlines

8.1

Very good

1,338 reviews

Reviews

1 / 20

2.0

Mediocre

Ketan,Nov 2024

SEA - SIN

Sin to amd was not good flight. Food was bad. It was like few days old.

Singapore Airlines

8.1

Very good

1,338 reviews

Singapore Airlines

8.1

Very good

1,338 reviews

Reviews

1 / 20

2.0

Mediocre

Ketan,Nov 2024

SEA - SIN

Sin to amd was not good flight. Food was bad. It was like few days old.

Qatar Airways

7.4

Good

3,609 reviews

Singapore Airlines

8.1

Very good

1,338 reviews

Reviews

1 / 20

2.0

Mediocre

Ketan,Nov 2024

SEA - SIN

Sin to amd was not good flight. Food was bad. It was like few days old.

Related info for your journey

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, September is the cheapest month in which you can book a flight from Santa Rosa to Kathmandu (average of $1,237). Flying from Santa Rosa to Kathmandu in June is currently the most expensive (average of $1,684). 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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$949+ Cheap flights from Santa Rosa (STS) to Kathmandu (KTM)

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 10/10. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Santa Rosa to Kathmandu with Cheapflights

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2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Santa Rosa to Kathmandu

Round-trip from

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Popular in

Cheapest in

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Find flight deals from Santa Rosa to Kathmandu

Cheapest flights from Santa Rosa to KathmanduExplore 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 July 29, 2025.

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 July 29, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Santa Rosa to Kathmandu that are best for you.

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.

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?

Reviews of airlines servicing Kathmandu

Read reviews from past customers who have flown Singapore Airlines and Qatar Airways from Santa Rosa to Kathmandu. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

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?

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

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

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

Traveling to a place near Kathmandu?

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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 July 29, 2025.