Cheap flights from San Francisco to Southeast Asia

SFO — BKK
5 Dec — 12 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from San Francisco to Southeast Asia

Popular in

December

Cheapest in

February

Average price

₹ 80,213
Highest demand for flights based on searches. 7% potential increase in price (₹ 687,372 potential increase over avg. return price).
Cheapest flight prices on average. 5% potential price decrease (₹ 417,824 potential savings vs. average return price).
Average for round-trip flights in November 2026

Cheapflights Insights

Everything you need to know about your flight from San Francisco to Southeast Asia

How far ahead should I book a flight from San Francisco to Southeast Asia?

To ensure you get the cheapest price possible for a flight from San Francisco to Southeast Asia, you should look to book at least 53 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from San Francisco to Southeast Asia?

Currently, April is the cheapest month in which you can book a flight from San Francisco to Southeast Asia (average of ₹ 76,240). Flying from San Francisco to Southeast Asia in December is currently the most expensive (average of ₹ 131,575). 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.

What is the cheapest time of day to fly from SFO to YJX?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from San Francisco to Southeast Asia as you normally would.

Reviews of airlines servicing Southeast Asia

Get a feel of what it's like to fly with China Airlines,Asiana Airlines, andCathay Pacific from San Francisco to Southeast Asia by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Overall

8.3

Boarding

8.3

Food

7.8

Entertainment

8.0

Comfort

8.0

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Sept 2026

SYD - TPE

The leg space was not enough other then that the crew were lovely.

Overall

8.3

Boarding

8.3

Food

7.8

Entertainment

8.0

Comfort

8.0

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Sept 2026

SYD - TPE

The leg space was not enough other then that the crew were lovely.

Overall

8.3

Boarding

8.3

Food

7.8

Entertainment

8.0

Comfort

8.0

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Sept 2026

SYD - TPE

The leg space was not enough other then that the crew were lovely.

Overall

8.3

Boarding

8.3

Food

7.8

Entertainment

8.0

Comfort

8.0

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Sept 2026

SYD - TPE

The leg space was not enough other then that the crew were lovely.

Overall

8.3

Boarding

8.3

Food

7.8

Entertainment

8.0

Comfort

8.0

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Sept 2026

SYD - TPE

The leg space was not enough other then that the crew were lovely.

Overall

8.3

Boarding

8.3

Food

7.8

Entertainment

8.0

Comfort

8.0

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Sept 2026

SYD - TPE

The leg space was not enough other then that the crew were lovely.

Related info for your journey

  • What airport do you fly from for flights from San Francisco to Southeast Asia?

    San Francisco (SFO) is the airport you will fly out of if you book a flight from San Francisco to Southeast Asia. It is only a 17.7 km journey to San Francisco (SFO) from San Francisco’s city centre.

  • What are the most popular routes from San Francisco to Southeast Asia?

  • Can I find deals for flights from San Francisco to Southeast Asia that include hotel bookings?

    Yes. In addition to deals on San Francisco to Southeast Asia flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from San Francisco to Southeast Asia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Francisco to Southeast Asia.

  • Can I find deals for business class flights from San Francisco to Southeast Asia?

    Yes. Cheapflights offers flight deals from San Francisco to Southeast Asia 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 San Francisco to Southeast Asia?

    Currently, April is the cheapest month in which you can book a flight from San Francisco to Southeast Asia (average of ₹ 76,240). Flying from San Francisco to Southeast Asia in December is currently the most expensive (average of ₹ 131,575). 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

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for San Francisco to Southeast Asia

Top 7 airlines flying from San Francisco to Southeast Asia

AirlineCheapestAverageFlexibilityOn-time
China SouthernCheapest₹ 47,421Average₹ 47,813FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Singapore AirlinesCheapest₹ 51,431Average₹ 59,206FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
Cathay PacificCheapest₹ 55,396Average₹ 82,131FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights
China AirlinesCheapest₹ 61,807Average₹ 85,289FlexibilityNo cancel feeOn-time70%
Search China Airlines flights
Philippine AirlinesCheapest₹ 61,997Average₹ 94,433FlexibilityNo cancel feeOn-time60%
Search Philippine Airlines flights
Asiana AirlinesCheapest₹ 64,655Average₹ 82,705FlexibilityNo cancel feeOn-time76%
Search Asiana Airlines flights
United AirlinesCheapest₹ 71,163Average₹ 94,745FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

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How does Cheapflights help users find flights from San Francisco to Southeast Asia?

Deals for San Francisco to Southeast Asia flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from San Francisco to Southeast Asia?

Cheapflights simply makes it quick and affordable to book flights from San Francisco to Southeast Asia by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from San Francisco to Southeast Asia with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from San Francisco to Southeast Asia, users can toggle the no change fees filter when performing a flight search.

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