How long is the flight from San Francisco to Southeast Asia?

A quick flight from San Francisco to Southeast Asia can take about 16h 35m. United Airlines provides one of the quickest options available for as low as £518. There are 8433 mi between San Francisco and Southeast Asia. Both multi-stop and direct flights can be found to your destination and back.

In terms of precipitation, rainfall in Southeast Asia ranges from 10.0 - 320.0 inches per month. September is typically the wettest month, when rainfall can reach 320.0 mm. January is typically the driest time to visit Southeast Asia when rainfall is around 10.0 mm.

If weather is an important factor for your trip to Southeast Asia, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 30.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 26.0 C).

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

While some choose either San Francisco - Singapore Changi or San Francisco - Jakarta Soekarno-Hatta Intl, San Francisco - Manila Ninoy Aquino Intl is the most popular route from San Francisco to Southeast Asia.

What are the most popular airlines that fly from San Francisco to Southeast Asia?

United Airlines, Philippine Airlines and Cathay Pacific are the most popular airlines when flying from San Francisco to Southeast Asia.

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

If you book a flight to Southeast Asia from San Francisco, you will be flying from San Francisco, which is the city’s only airport. San Francisco (SFO) is located 11.0 mi from the center of San Francisco.

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.

£277+ Cheap Flights from San Francisco to Southeast Asia

Cheap flight deals from San Francisco to Southeast Asia

Enter your travel dates to find the best prices.

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Direct

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One-way

Cheapest flights from San Francisco to Southeast Asia
Explore the most affordable flight options available from San Francisco to Southeast Asia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 September 2026.

Thu 17/910:40 -

Nonstop16h 55m

Wed 30/908:45 -

Nonstop15h 30m

Deal found 16/9£518

Thu 22/1010:40 -

Nonstop16h 55m

Mon 26/1022:20 -

Nonstop14h 55m

Deal found 16/9£518

Mon 30/1110:40 -

Nonstop17h 35m

Tue 20/420:35 -

Nonstop15h 10m

Deal found 16/9£521

Tue 22/910:35 -

1 stop29h 05m

Wed 14/1020:35 -

Nonstop15h 30m

Deal found 16/9£525

Mon 19/1001:10 -

1 stop38h 30m

Wed 4/1110:10 -

Nonstop15h 05m

Deal found 14/9£526

Tue 13/1022:40 -

Nonstop16h 35m

Tue 20/1011:05 -

1 stop37h 30m

Deal found 16/9£526

Mon 14/911:55 -

1 stop21h 50m

Sun 27/908:45 -

Nonstop15h 30m

Deal found 14/9£527

Mon 9/1111:05 -

1 stop20h 35m

Wed 18/1122:20 -

Nonstop14h 55m

Deal found 14/9£528

Mon 19/1006:00 -

2 stops33h 40m

Fri 25/1222:20 -

Nonstop14h 55m

Deal found 16/9£529

Wed 14/1022:50 -

1 stop37h 15m

Wed 4/1104:00 -

1 stop29h 00m

Deal found 16/9£566

Tue 29/923:20 -

1 stop32h 15m

Thu 5/1111:45 -

1 stop18h 45m

Deal found 15/9£593

Tue 24/1123:00 -

1 stop19h 15m

Tue 2/323:50 -

1 stop30h 40m

Deal found 16/9£594

Best flights from San Francisco to Southeast Asia
Discover carefully curated flight deals from San Francisco to Southeast Asia that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 17 September 2026.

Tue 29/922:40 -

Nonstop16h 35m

Wed 28/1010:10 -

Nonstop15h 05m

Deal found 14/9£518

Thu 1/1013:00 -

1 stop31h 20m

Thu 15/1005:30 -

1 stop20h 25m

Deal found 15/9£625

Mon 18/111:05 -

2 stops38h 00m

Thu 25/210:55 -

1 stop23h 50m

Deal found 13/9£686

Wed 21/1000:30 -

Nonstop14h 00m

Mon 16/1111:10 -

1 stop20h 26m

Deal found 16/9£702

Sun 27/1206:00 -

2 stops41h 50m

Fri 15/118:30 -

2 stops38h 22m

Deal found 16/9£776

Wed 25/1106:00 -

2 stops26h 55m

Mon 21/1221:45 -

1 stop32h 45m

Deal found 15/9£790

Mon 28/910:40 -

Nonstop16h 55m

Thu 29/1022:20 -

Nonstop14h 55m

Deal found 16/9£518

Mon 19/1001:10 -

1 stop38h 30m

Wed 4/1110:10 -

Nonstop15h 05m

Deal found 14/9£526

Wed 27/100:20 -

1 stop38h 35m

Mon 15/210:10 -

Nonstop14h 50m

Deal found 12/9£526

Thu 26/1116:40 -

3 stops58h 30m

Mon 21/1219:25 -

2 stops31h 20m

Deal found 15/9£1,379

Thu 4/311:05 -

1 stop20h 35m

Fri 12/310:10 -

Nonstop14h 50m

Deal found 16/9£527

Tue 16/222:55 -

3 stops51h 20m

Tue 9/320:30 -

4 stops44h 46m

Deal found 16/9£1,420

Wed 28/1011:45 -

1 stop20h 55m

Wed 4/1110:10 -

Nonstop15h 05m

Deal found 13/9£528

Mon 12/1022:40 -

Nonstop16h 35m

Mon 19/1006:15 -

1 stop19h 20m

Deal found 12/9£528

Thu 26/1111:05 -

1 stop20h 35m

Wed 23/1210:10 -

Nonstop15h 00m

Deal found 12/9£528

Sun 27/1211:45 -

1 stop36h 05m

Fri 15/118:30 -

2 stops34h 37m

Deal found 16/9£987

Mon 9/1122:50 -

2 stops34h 05m

Wed 18/1110:10 -

Nonstop15h 05m

Deal found 15/9£531

Mon 21/1206:00 -

2 stops41h 50m

Tue 29/1218:30 -

2 stops38h 05m

Deal found 14/9£1,289

Wed 20/109:30 -

2 stops20h 20m

Sun 28/222:55 -

2 stops23h 40m

Deal found 12/9£654

Wed 3/314:05 -

3 stops37h 05m

Tue 16/319:25 -

3 stops34h 56m

Deal found 15/9£1,407

Sun 22/1115:10 -

3 stops36h 00m

Sat 12/1217:40 -

2 stops34h 15m

Deal found 14/9£1,403

Sun 17/115:10 -

3 stops36h 00m

Wed 17/218:40 -

2 stops33h 15m

Deal found 16/9£1,410

Fri 2/1013:50 -

Nonstop14h 10m

Fri 9/1008:40 -

Nonstop12h 55m

Deal found 13/9£677

Fri 25/1213:09 -

2 stops34h 41m

Sat 2/118:30 -

2 stops42h 41m

Deal found 17/9£1,510

Wed 27/114:05 -

3 stops37h 05m

Sun 14/219:25 -

3 stops32h 30m

Deal found 15/9£1,423

Sun 1/1114:05 -

Nonstop15h 05m

Sun 13/1223:25 -

Nonstop12h 35m

Deal found 14/9£677

Wed 25/1115:10 -

3 stops36h 00m

Mon 21/1219:25 -

3 stops32h 30m

Deal found 15/9£1,426

Mon 16/1109:20 -

2 stops20h 30m

Mon 29/322:25 -

2 stops33h 40m

Deal found 14/9£711

Wed 3/211:55 -

3 stops39h 45m

Sat 13/221:00 -

2 stops30h 45m

Deal found 15/9£1,434

Wed 28/1012:08 -

3 stops40h 32m

Wed 4/1121:00 -

2 stops30h 45m

Deal found 13/9£1,443

Find flight deals from San Francisco to Southeast Asia

Round-trip from	£518
One-way from	£277
Popular in	December
Cheapest in	February
Average price	£604

United Airlines
31/1-14/2
Nonstop
32h 15m total
San Francisco to Southeast Asia

Search Deals

United Airlines
13/10-31/12
Nonstop
16h 55m total
San Francisco to Southeast Asia

Search Deals

Highest demand for flights based on searches. 5% potential increase in price (£33 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 5% potential price decrease (£27 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from San Francisco to Southeast Asia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

San FranciscoSingapore

SFO San Francisco - SIN Singapore Changi

SFOSIN

San Francisco

Mon 28/9

10:40-18:35

Nonstop16h 55m

Singapore Changi

Wed 31/12

00:00-08:30

Nonstop0h 00m

£277

San FranciscoSingapore

SFO San Francisco - SIN Singapore Changi

SFOSIN

San Francisco

Wed 3/3

10:35-20:15

Nonstop17h 40m

Singapore Changi

Wed 31/12

00:00-08:30

Nonstop0h 00m

£277

San FranciscoSingapore

SFO San Francisco - SIN Singapore Changi

SFOSIN

San Francisco

Mon 1/3

00:20-06:55

1 stop38h 35m

Singapore Changi

Wed 31/12

00:00-08:30

Nonstop0h 00m

£283

San FranciscoSingapore

SFO San Francisco - SIN Singapore Changi

SFOSIN

San Francisco

Mon 18/1

07:15-06:55

2 stops31h 40m

Singapore Changi

Wed 31/12

00:00-08:30

Nonstop0h 00m

£287

San FranciscoSingapore

SFO San Francisco - SIN Singapore Changi

SFOSIN

San Francisco

Sat 9/1

12:00-06:55

2 stops26h 55m

Singapore Changi

Wed 31/12

00:00-08:30

Nonstop0h 00m

£287

San FranciscoSingapore

SFO San Francisco - SIN Singapore Changi

SFOSIN

San Francisco

Sat 3/10

07:00-00:45

2 stops26h 45m

Singapore Changi

Wed 31/12

00:00-08:30

Nonstop0h 00m

£289

San FranciscoSingapore

SFO San Francisco - SIN Singapore Changi

SFOSIN

San Francisco

Thu 25/2

07:15-23:40

2 stops24h 25m

Singapore Changi

Wed 31/12

00:00-08:30

Nonstop0h 00m

£289

San FranciscoSingapore

SFO San Francisco - SIN Singapore Changi

SFOSIN

San Francisco

Sat 7/11

07:00-23:40

2 stops24h 40m

Singapore Changi

Wed 31/12

00:00-08:30

Nonstop0h 00m

£289

San FranciscoSingapore

SFO San Francisco - SIN Singapore Changi

SFOSIN

San Francisco

Thu 1/10

08:55-00:45

2 stops24h 50m

Singapore Changi

Wed 31/12

00:00-08:30

Nonstop0h 00m

£289

San FranciscoSingapore

SFO San Francisco - SIN Singapore Changi

SFOSIN

San Francisco

Sat 10/10

16:25-06:40

2 stops47h 15m

Singapore Changi

Wed 31/12

00:00-08:30

Nonstop0h 00m

£295

Flights are sorted by cheapest return flights first.

Deals found on 13/9

Showing 1-10 of 58 resultsSorted by cheapest first

...

Best time to book a flight from San Francisco to Southeast Asia

Have a flexible travel schedule? Discover the best time to fly to Southeast Asia from San Francisco with our price prediction graph.

SFO-SIN

SFO-MNL

SFO-CGK

Estimated return 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 San Francisco to Southeast Asia

SFO-zzYJX

SFO-SIN

SFO-MNL

SFO-CGK

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

Currently, March is the cheapest month in which you can book a flight from San Francisco to Southeast Asia (average of £600). Flying from San Francisco to Southeast Asia in December is currently the most expensive (average of £1,028). 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?

When flying from San Francisco to Southeast Asia, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

Booking 89 days in advance of your planned departure date is, on average, the best time to get cheap flights from San Francisco to Southeast Asia. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Reviews of airlines servicing Southeast Asia

Check out reviews from past customers who have flown with Cathay Pacific,United Airlines, andPhilippine Airlines from San Francisco to Southeast Asia to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Cathay Pacific

7.6

Good

1,488 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Ernest,Jun 2026

SFO - HKG

As good as can be expected for economy class international flight, on time very professional crew. The plane was clean bathrooms clean, decent food, connecting flight on time, with another tasty meal. Love Cathay Pacific

Cathay Pacific

7.6

Good

1,488 reviews

Cathay Pacific

7.6

Good

1,488 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Ernest,Jun 2026

SFO - HKG

United Airlines

7.4

Good

10,224 reviews

Cathay Pacific

7.6

Good

1,488 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Ernest,Jun 2026

SFO - HKG

Philippine Airlines

7.3

Good

1,027 reviews

Cathay Pacific

7.6

Good

1,488 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Ernest,Jun 2026

SFO - HKG

Related info for your journey

What airport do you fly from for flights from San Francisco to Southeast Asia?
If you book a flight to Southeast Asia from San Francisco, you will be flying from San Francisco, which is the city’s only airport. San Francisco (SFO) is located 11.0 mi from the center of San Francisco.
How long is the flight from San Francisco to Southeast Asia?
A quick flight from San Francisco to Southeast Asia can take about 16h 35m. United Airlines provides one of the quickest options available for as low as £518. There are 8433 mi between San Francisco and Southeast Asia. Both multi-stop and direct flights can be found to your destination and back.
What are the most popular routes from San Francisco to Southeast Asia?
While some choose either San Francisco - Singapore Changi or San Francisco - Jakarta Soekarno-Hatta Intl, San Francisco - Manila Ninoy Aquino Intl is the most popular route 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, March is the cheapest month in which you can book a flight from San Francisco to Southeast Asia (average of £600). Flying from San Francisco to Southeast Asia in December is currently the most expensive (average of £1,028). 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

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Top 3 airlines flying from San Francisco to Southeast Asia

Airline	Cheapest	Average	Flexibility	On-time
Cathay Pacific	Cheapest£484	Average£965	FlexibilityNo cancel fee	On-time72%	Search Cathay Pacific flights
United Airlines	Cheapest£518	Average£909	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Philippine Airlines	Cheapest£564	Average£720	FlexibilityNo cancel fee	On-time60%	Search Philippine 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?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from San Francisco to Southeast Asia.

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

Need flexible booking options for your flight to Southeast Asia from San Francisco? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from San Francisco to Southeast Asia become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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Cheap flights from San Francisco to Southeast Asia from £277

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 28/9. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from San Francisco to Southeast Asia

Cheapest flights from San Francisco to Southeast AsiaExplore the most affordable flight options available from San Francisco to Southeast Asia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 September 2026.

Explore the most affordable flight options available from San Francisco to Southeast Asia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 September 2026.

Best flights from San Francisco to Southeast AsiaDiscover carefully curated flight deals from San Francisco to Southeast Asia that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 17 September 2026.

Discover carefully curated flight deals from San Francisco to Southeast Asia that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 17 September 2026.

Direct flights from San Francisco to Southeast AsiaExplore direct flight options from San Francisco to Southeast Asia based on user searches, and compare prices and availability for your desired travel dates. Data last updated 17 September 2026.

Explore direct flight options from San Francisco to Southeast Asia based on user searches, and compare prices and availability for your desired travel dates. Data last updated 17 September 2026.

Last-minute flights from San Francisco to Southeast AsiaDiscover last-minute flight deals from San Francisco to Southeast Asia. Data last updated 17 September 2026 and is based on user searches.

Discover last-minute flight deals from San Francisco to Southeast Asia. Data last updated 17 September 2026 and is based on user searches.

One-way flights from San Francisco to Southeast AsiaSearch for one-way flight options from San Francisco to Southeast Asia. Find affordable one-way fares based on user searches. Data last updated 17 September 2026.

Search for one-way flight options from San Francisco to Southeast Asia. Find affordable one-way fares based on user searches. Data last updated 17 September 2026.

Find flight deals from San Francisco to Southeast Asia

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from San Francisco to Southeast Asia that are best for you.

Best time to book a flight from San Francisco to Southeast Asia

Have a flexible travel schedule? Discover the best time to fly to Southeast Asia from San Francisco with our price prediction graph.

Cheapflights Insights

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

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

Find hourly flight availability from San Francisco to Southeast Asia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 17 September 2026.

When flying from San Francisco to Southeast Asia, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

Booking 89 days in advance of your planned departure date is, on average, the best time to get cheap flights from San Francisco to Southeast Asia. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Reviews of airlines servicing Southeast Asia

Check out reviews from past customers who have flown with Cathay Pacific,United Airlines, andPhilippine Airlines from San Francisco to Southeast Asia to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

How long is the flight from San Francisco to Southeast Asia?

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?

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

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

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for San Francisco to Southeast Asia

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Southeast Asia by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to

Book a non-stop flight to one of these other cities located in .

Search flights from San Francisco to Southeast Asia by cabin class

Find flights from San Francisco to Southeast Asia, based on your preferred cabin class, be it economy, premium economy, business, or first class.

San Francisco and Southeast Asia flights

Browse other San Francisco and Southeast Asia flight options. Last updated on 17 September 2026.

Popular flight searches

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Top 3 airlines flying from San Francisco to Southeast Asia

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

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

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

Can Cheapflights notify me if prices for flights from San Francisco to Southeast Asia become cheaper?

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Travel Smart

Cheapest flights from San Francisco to Southeast Asia
Explore the most affordable flight options available from San Francisco to Southeast Asia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 September 2026.

Best flights from San Francisco to Southeast Asia
Discover carefully curated flight deals from San Francisco to Southeast Asia that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 17 September 2026.

Direct flights from San Francisco to Southeast Asia
Explore direct flight options from San Francisco to Southeast Asia based on user searches, and compare prices and availability for your desired travel dates. Data last updated 17 September 2026.

Last-minute flights from San Francisco to Southeast Asia
Discover last-minute flight deals from San Francisco to Southeast Asia. Data last updated 17 September 2026 and is based on user searches.

One-way flights from San Francisco to Southeast Asia
Search for one-way flight options from San Francisco to Southeast Asia. Find affordable one-way fares based on user searches. Data last updated 17 September 2026.