S$ 438 Find Cheap Flights from San Francisco to Southeast Asia

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Francisco to Southeast Asia departing on 16-1. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Southeast Asia

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Francisco to Southeast Asia, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Francisco to Southeast Asia, as well as popular online travel agencies
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Flight Deals

Cheap Flights from San Francisco to Southeast Asia

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from San Francisco to Southeast Asia that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from San Francisco to Southeast Asia

Mon, 16 Mar - Sun, 22 Mar
Asiana Airlines Logo
23:50 - 21:55
SFO
-
SIN
31h 05m1 stop
Asiana Airlines Logo
23:10 - 15:00
SIN
-
SFO
30h 50m1 stop
S$ 826Asiana Airlines
Mon, 12 Jan - Mon, 26 Jan
United Airlines Logo
10:35 - 20:15
SFO
-
SIN
17h 40mdirect
United Airlines Logo
22:20 - 21:15
SIN
-
SFO
14h 55mdirect
S$ 828United Airlines
Mon, 12 Jan - Sun, 25 Jan
United Airlines Logo
10:35 - 20:15
SFO
-
SIN
17h 40mdirect
United Airlines Logo
10:10 - 09:00
SIN
-
SFO
14h 50mdirect
S$ 829United Airlines
Sun, 11 Jan - Sat, 24 Jan
United Airlines Logo
22:35 - 08:00
SFO
-
SIN
17h 25mdirect
United Airlines Logo
10:10 - 09:00
SIN
-
SFO
14h 50mdirect
S$ 830United Airlines
Wed, 25 Feb - Tue, 31 Mar
Asiana Airlines Logo
23:50 - 21:55
SFO
-
SIN
30h 05m1 stop
Asiana Airlines Logo
22:50 - 15:00
SIN
-
SFO
31h 10m1 stop
S$ 832Asiana Airlines
Sun, 15 Feb - Wed, 18 Feb
Air India Logo
16:30 - 18:30
SFO
-
SIN
34h 00m2 stops
Air India Logo
20:00 - 12:25
SIN
-
SFO
32h 25m1 stop
S$ 833Air India
Sun, 15 Mar - Thu, 19 Mar
Singapore Airlines Logo
10:40 - 19:05
SFO
-
SIN
17h 25mdirect
Singapore Airlines Logo
09:15 - 08:50
SIN
-
SFO
14h 35mdirect
S$ 834Singapore Airlines
Wed, 14 Jan - Mon, 19 Jan
Asiana Airlines Logo
23:50 - 21:55
SFO
-
SIN
30h 05m1 stop
Asiana Airlines Logo
23:10 - 14:00
SIN
-
SFO
30h 50m1 stop
S$ 837Asiana Airlines
Wed, 4 Feb - Fri, 27 Feb
Korean Air Logo
11:40 - 22:25
SFO
-
KUL
42h 45m1 stop
Korean Air Logo
23:55 - 09:30
KUL
-
SFO
25h 35m1 stop
S$ 997Korean Air
Fri, 6 Feb - Thu, 26 Feb
Korean Air Logo
11:40 - 22:25
SFO
-
KUL
42h 45m1 stop
Korean Air Logo
23:55 - 09:30
KUL
-
SFO
25h 35m1 stop
S$ 1,002Korean Air
Booking Insights

KAYAK's insights & trends for San Francisco to Southeast Asia flights

Get data-powered insights and trends into flights from San Francisco to Southeast Asia to help you find the cheapest flights, the best time to fly, and much more.

What is the cheapest San Francisco to Southeast Asia flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Southeast Asia from San Francisco found in the last 72 hours was to Singapore, at S$ 1,541 return. The most popular route is from San Francisco (SFO) to Singapore (SIN), and the cheapest round-trip airline ticket found on this route in the last 72 hours was S$ 1,541.

Can I save money by flying with a stopover from San Francisco to Southeast Asia?

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of S$ 715, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from San Francisco to Southeast Asia?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Francisco to Southeast Asia, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from San Francisco to Southeast Asia is September, when tickets cost S$ 916 (return) on average. On the other hand, the most expensive months are December and June, when the average cost of return tickets is S$ 1,885 and S$ 1,524 respectively.

What’s the cheapest day of the week to fly from San Francisco to Southeast Asia?

The average price of all round-trip flights from San Francisco to Southeast Asia clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from San Francisco to Southeast Asia, look for departures on Wednesdays and avoid leaving on a Sunday, as it's usually the priciest day. When flying back from Southeast Asia, Saturday is the cheapest day to fly and Sunday is the most expensive.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from San Francisco to Southeast Asia, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below-average price on a flight from San Francisco to Southeast Asia, you should book around 4 weeks before departure, which saves you about 3% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 14 weeks before departure.

Good to know

Low seasonAugust
Cheapest flightS$ 438
Best time to beat the crowds (15% less expensive on average)
Most popular time to fly (55% more expensive on average)
Flight from San Francisco to Singapore

Flights from San Francisco to Southeast Asia: the best tips from KAYAK users

Insights shared by verified travellers who flew the route from San Francisco to Southeast Asia 
Verified travelerFlew with Philippine Airlines
SFO
-
MNL
May 2024
check in online be there early and complete etravel before going to counter
Verified travelerFlew with Singapore Airlines
SFO
-
SIN
Jan 2024
The Singapore Changi airport if huge. After getting of the aircraft, the walk to immigration control was long. Once you get to the control area, the process was quick and easy.

FAQs - booking Southeast Asia flights

  • How does KAYAK find such low prices on flights from San Francisco to Southeast Asia?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from San Francisco to Southeast Asia.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from San Francisco to Southeast Asia?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from San Francisco to Southeast Asia is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from San Francisco to Southeast Asia?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from San Francisco to Southeast Asia with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from San Francisco to Southeast Asia?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from San Francisco to Southeast Asia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Southeast Asia?

    The cheapest time of day to fly to Southeast Asia is generally in the morning, when retur flights cost S$ 1,204 on average. The most expensive time of day to fly to Southeast Asia is generally at night, which is peak travel time and where the average cost of a ticket is S$ 1,385.

Reviews of the top airlines flying from San Francisco to Southeast Asia

 
See real verified KAYAK customer reviews for airlines flying from San Francisco to Southeast Asia. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from San Francisco to Southeast Asia? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.1
Singapore AirlinesOverall score based on 1413 reviews
8.0Entertainment
7.8Food
8.6Crew
8.3Boarding
8.0Comfort
Airline reviews

Wish the underseat compartment don’t have a restriction, can fit a personal item such as backpack fully like most Boeing

4.0 OkayKohMeng, Nov 2025
LAX - SIN
Read more Singapore Airlines reviews

Wish the underseat compartment don’t have a restriction, can fit a personal item such as backpack fully like most Boeing

Crew and service excellent. 2 hour delay for takeoff. SQ app showed flight on time.

Horrendous. We upgraded and they took the money but cancelled one of our tickets. The recline action didn’t work on the seats for the flight from Singapore to London, pre booked meals but they seemed to have disappeared as well.. Phone customer service was horrendous. Took 5 phone calls and no fix. Craig at the airport was the only one who seemed to be able to get the ticket back.

Very good flight from Boarding to landing -efficient and comfortable with decent entertainment options

Construction at PDX resulting in very lung walk from the rental car to the gate. SFO, extremely long walk between terminals to get to connecting Singapore airlines flight. My smart watch recorded a total of 3 miles.

The seat in economy class and legroom in Singapore airline are narrower than Korean airlines! I don’t have that comforting feeling flying with Singapore air as in the past!

Loved the airline with the exception of their carry on limitations. They enforce a strict 7 kilo limit for carry on baggage which is ridiculous. We traveled from SFO to SIN with carry on with no difficulty yet when we checked in Delhi they forced us to check the carry on bags. The weight of our carry on bags were 11 and 12 kilos and while they exceeded the limitations set by Singapore Airlines they were well under weight limitations set by may other carriers. Interestingly my wife and I were each allowed two 22 KG bags to check in addition to the 7 kg carry on for a total weight of 102 KG's. Our total weight with the one bag we planned to check and our two carry ons was 46 kgs.

Crew and service was excellent, but passengers should be offered a welcome drink before take off which did not happen. Food was very good. Unfortunately the lie-flat bed in business class was one of the most uncomfortable I have experienced. The configuration forces you to sleep with your legs at an angle instead of in a straight line, plus there is very little padding on the bed so it wasn't possible to sleep for more than 2-3 hours on an 18 hour flight. For what the airlines charges for a business class ticket their hard product leaves a lot to be desired.

So happy I flew with Singapore Airlines. The customer service is top notch. I am terrified of flying and the staff made me feel so at ease. Will only fly Singapore internationally moving forward.

It was very good experience on board to Sydney with SQ.

from SFO-> FRA flight, AVML meal was significantly less compared to regular meal, especially no Desert, no Bread, no sides.

This was an older airplane. The cabin was constantly warm to hot throughout the 10 hour flight and there were no vents to personalize air flow. Also since it was an older plane, the material and comfort of the chairs were very uncomfortable. I left my flight with major soreness on my tailbone.

Older aircraft, no meal, only food was for purchase. Not impressed United.

Not pleasant trip cross country when the entertainment and WiFi system not working. No entertainment for entirety of route. Staff was rather nonchalant in that they dismissed the problem due to age of plane. It would have been nice to know this up front so I could have come prepared to read or download movies before boarding Coincidentally or not, there was a similar issue with the entertainment system on my previous flight I took on my fist leg of the trip. There are no seat TVs, so you must rely on the app when it works. United can do better. Also, what use it it to pay for boarding group 2 when half of the passengers are in the same line as you?

My experience on this United Airlines flight was highly uncomfortable, primarily due to two issues: Cabin Temperature: The temperature on the Boeing 737 MAX 8 was unacceptably high, feeling consistently around 80 degrees throughout the flight. This made sleeping impossible and significantly detracted from the experience. Seating Arrangement: Being stuck in a middle seat for a six-and-a-half-hour overnight flight compounded the discomfort. Moving forward, I will always purchase a seat assignment to avoid this situation.

Premium Plus is a really good idea for longer flights

Same as last comment. Food sucks. Quality. Not surprising most people have no clue about nourishment Clearly

We were in business class. the angled seats in that class do not have a real window view & the placement of the controls are bad. But we knew that. But the food options were mediocre. The taste was fine, but the size was for a child. It’s just really feels like United is skimping on everything. Even when we were in the Polaris lounge they did not have diet sodas. They said they were out no Coke zero no Diet Coke, etc. I do not think the portion of nuts they serve on the plane could get any smaller. Really a minimal service and offer for what you’re paying for in business.

We had to deboard 2 times due to maintenance issues. They changed the plane, and then we got deviated to LAX due to maibtenance issues on the other plane, had to sleep at LAX and los a full day.

From the first moment you interact with United Airlines, you can expect nothing less but extreme frustration. The baggage handler at the bag drop seems completely unbothered by the presence of customers waiting in line. No help was extended to load the baggage whatsoever. And if any of your bags is overweight by 0.01 pound they will make you re-distribute everything in your suitcase just to play power trip. When it was time to board no help was extended to customers to locate their seats. Moreover. It was a chaotic mess at the gate when it was unclear who should board first and everyone just bunched up, trying to get on the plane. I am sure the crew was doing their best to perform their jobs while being paid their wages however it shouldn’t be that hard to smile once or twice when you’re in the business if serving customers. It is a shame for the United States of America to have a flagship carrier of such low caliber. Our flight was also delayed by about an hour and a half due to further delays prior to our inbound flight. Being someone who has travelled for both business and leisure in Asia, Europe, and South America I have never experienced such poor quality of service.

Everything you need to know for your flight to Southeast Asia

Information on your arrival and departure airports