Cheap flights from San Francisco to Southeast Asia from £253

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 13/1. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — BKK
17 Jan — 24 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from San Francisco to Southeast Asia

Enter your travel dates to find the best prices.

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 18 December 2025.

Wed 31/1223:45SFO - MNL
Nonstop15h 05mUnited Airlines
Tue 3/200:40MNL - SFO
2 stops19h 43mUnited Airlines
Deal found 16/12£591
Sun 28/1210:35SFO - SIN
Nonstop17h 40mUnited Airlines
Sun 8/222:20SIN - SFO
Nonstop14h 55mUnited Airlines
Deal found 17/12£605
Tue 30/1223:45SFO - MNL
Nonstop15h 05mUnited Airlines
Tue 3/200:40MNL - SFO
2 stops19h 43mUnited Airlines
Deal found 16/12£613
Wed 31/1223:45SFO - MNL
Nonstop15h 05mUnited Airlines
Fri 13/223:25MNL - SFO
Nonstop12h 30mUnited Airlines
Deal found 16/12£616
Tue 30/1207:20SFO - MNL
2 stops22h 30mUnited Airlines
Sun 25/122:55MNL - SFO
2 stops23h 43mUnited Airlines
Deal found 17/12£617
Wed 31/1223:45SFO - MNL
Nonstop15h 05mUnited Airlines
Sat 31/122:55MNL - SFO
2 stops38h 48mUnited Airlines
Deal found 16/12£626
Tue 30/1223:40SFO - MNL
1 stop18h 15mMultiple Airlines
Tue 27/117:55MNL - SFO
1 stop17h 45mMultiple Airlines
Deal found 15/12£654
Tue 30/1223:45SFO - MNL
Nonstop15h 05mUnited Airlines
Sat 17/122:55MNL - SFO
2 stops23h 43mUnited Airlines
Deal found 16/12£658
Mon 29/1210:35SFO - SIN
Nonstop17h 40mUnited Airlines
Mon 19/106:35SIN - SFO
1 stop18h 40mUnited Airlines
Deal found 17/12£665
Wed 24/1222:35SFO - SIN
Nonstop17h 25mUnited Airlines
Sun 28/1222:20SIN - SFO
Nonstop14h 55mUnited Airlines
Deal found 18/12£680
Wed 24/1222:35SFO - SIN
Nonstop17h 25mUnited Airlines
Sat 27/1210:45SIN - SFO
1 stop20h 35mUnited Airlines
Deal found 18/12£687
Sun 28/1222:35SFO - SIN
Nonstop17h 25mUnited Airlines
Fri 16/110:10SIN - SFO
Nonstop14h 50mUnited Airlines
Deal found 16/12£730

Find flight deals from San Francisco to Southeast Asia

Keep the following information in mind while searching for San Francisco to Southeast Asia flight deals. Data was last updated 18 December 2025.

Round-trip from

£479

One-way from

£253

Popular in

December

Cheapest in

September

Average price

£1,039
United Airlines
  • United Airlines
  • 12/1-25/1
  • Nonstop
  • 32h 30m total
  • San Francisco to Southeast Asia
United Airlines
  • United Airlines
  • 13/1
  • Nonstop
  • 17h 25m total
  • San Francisco to Southeast Asia
Highest demand for flights based on searches. 9% potential increase in price (£54 potential increase over avg. return price).
Cheapest flight prices on average. 5% potential price decrease (£26 potential savings vs. average return price).
Average for round-trip flights in December 2025

Cheapflights Fare Finder

 
Customise your flight search to find flights from San Francisco to Southeast Asia 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 858,174 searches. Data last updated 18 December 2025.
Use the filters below to find and compare flights from San Francisco to Southeast Asia that are best for you.

Fly from

San Francisco

Fly to

Southeast Asia

Route

Depart

Return

Price

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Wed 28/1

10:35-20:15

Nonstop17h 40m

Singapore Changi

Wed 4/2

22:20-21:15

Nonstop14h 55m

£479

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Thu 12/2

10:35-20:15

Nonstop17h 40m

Singapore Changi

Tue 17/2

10:10-09:05

Nonstop14h 55m

£479

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Sun 1/2

10:15-06:55

1 stop28h 40m

Singapore Changi

Sun 8/2

22:20-21:15

Nonstop14h 55m

£487

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Mon 12/1

10:35-20:15

Nonstop17h 40m

Singapore Changi

Mon 26/1

10:45-15:20

1 stop20h 35m

£487

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Mon 26/1

10:35-20:15

Nonstop17h 40m

Singapore Changi

Mon 2/2

10:45-15:20

1 stop20h 35m

£487

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Mon 12/1

10:35-20:15

Nonstop17h 40m

Singapore Changi

Sun 25/1

06:35-09:15

1 stop18h 40m

£489

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Sun 18/1

11:00-00:55

1 stop21h 55m

Singapore Changi

Sat 24/1

10:10-09:00

Nonstop14h 50m

£489

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Sat 31/1

07:25-06:55

2 stops31h 30m

Singapore Changi

Sat 7/2

10:10-09:00

Nonstop14h 50m

£490

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Sat 7/2

22:59-06:55

2 stops39h 56m

Singapore Changi

Wed 18/2

22:20-21:15

Nonstop14h 55m

£490

San FranciscoSingapore

SFO - SIN

SFOSIN

San Francisco

Mon 23/2

11:40-05:00

1 stop25h 20m

Singapore Changi

Thu 26/2

10:40-09:30

1 stop38h 50m

£492

Flights are sorted by cheapest return flights first.

Deals found on 17/12

Showing 1-10 of 60 results
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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.
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

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

Currently, February is the cheapest month in which you can book a flight from San Francisco to Southeast Asia (average of £292). Flying from San Francisco to Southeast Asia in June is currently the most expensive (average of £533). 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?

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 18 December 2025.

It’s optimal to fly from San Francisco to Southeast Asia in the evening. By choosing this option you can save up to 48% on the cost of your flight, compared to a flight at midday.

Reviews of airlines servicing Southeast Asia

Get insights into the airlines that provide service to Southeast Asia. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Southeast Asia. Reviews last updated 18 December 2025.
Check out reviews from past customers who have flown with STARLUX Airlines, Cathay Pacific, andUnited 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.
STARLUX Airlines
8.9
Very Good

Overall

8.9

Crew

9.2

Comfort

8.8

Entertainment

8.8

Food

8.7

Boarding

8.9

Reviews

1 / 9
10.0
Excellent

Chad,Nov 2025

TPE - SEA

Starlux Airlines was amazing. No complaints on anything with them
STARLUX Airlines
8.9
Very Good
STARLUX Airlines
8.9
Very Good

Overall

8.9

Crew

9.2

Comfort

8.8

Entertainment

8.8

Food

8.7

Boarding

8.9

Reviews

1 / 9
10.0
Excellent

Chad,Nov 2025

TPE - SEA

Starlux Airlines was amazing. No complaints on anything with them
STARLUX Airlines
8.9
Very Good

Overall

8.9

Crew

9.2

Comfort

8.8

Entertainment

8.8

Food

8.7

Boarding

8.9

Reviews

1 / 9
10.0
Excellent

Chad,Nov 2025

TPE - SEA

Starlux Airlines was amazing. No complaints on anything with them
STARLUX Airlines
8.9
Very Good

Overall

8.9

Crew

9.2

Comfort

8.8

Entertainment

8.8

Food

8.7

Boarding

8.9

Reviews

1 / 9
10.0
Excellent

Chad,Nov 2025

TPE - SEA

Starlux Airlines was amazing. No complaints on anything with them
STARLUX Airlines
8.9
Very Good

Overall

8.9

Crew

9.2

Comfort

8.8

Entertainment

8.8

Food

8.7

Boarding

8.9

Reviews

1 / 9
10.0
Excellent

Chad,Nov 2025

TPE - SEA

Starlux Airlines was amazing. No complaints on anything with them

Related info for your journey

Find useful and relevant information for your journey from San Francisco to Southeast Asia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • 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 11.8 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 17h 40m. United Airlines provides one of the quickest options available for as low as £479. 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?

  • 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, February is the cheapest month in which you can book a flight from San Francisco to Southeast Asia (average of £292). Flying from San Francisco to Southeast Asia in June is currently the most expensive (average of £533). 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

Discover the top 3 airlines that operate flights from San Francisco to Southeast Asia. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 18 December 2025.
AirlineCheapestAverageFlexibilityOn-time
Cathay PacificCheapest£487Average£595FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights
United AirlinesCheapest£565Average£751FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Philippine AirlinesCheapest£598Average£946FlexibilityNo cancel feeOn-time60%
Search Philippine Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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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