$471 Find Cheap Flights from San Francisco to Sumatra

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 Sumatra departing on 10/2. 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

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

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

Best Sumatra Flight Deals from San Francisco

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Medan
Medan1 stop$773
Padang
Padang1 stop$895
Medan
Medan1 stop$773
Padang
Padang1 stop$895

Cheap Flights from San Francisco to Sumatra

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Francisco to Sumatra 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 round-trip flight deals from San Francisco to Sumatra

Sun, Oct 5 - Mon, Nov 3
Singapore Airlines Logo
11:30 am - 7:30 pmSFO-KNO
42h 00m1 stop
Singapore Airlines Logo
8:15 pm - 7:50 amKNO-SFO
26h 35m1 stop
$773Singapore Airlines
Find Deal
Fri, Sep 5 - Sat, Sep 20
Singapore Airlines Logo
11:30 am - 8:00 amSFO-KNO
30h 30m1 stop
Singapore Airlines Logo
8:45 am - 9:40 amKNO-SFO
38h 55m1 stop
$785Singapore Airlines
Find Deal
Sat, Nov 1 - Sat, Nov 15
Singapore Airlines Logo
10:40 am - 12:25 pmSFO-PDG
35h 45m1 stop
Singapore Airlines Logo
1:00 pm - 7:50 amPDG-SFO
33h 50m1 stop
$895Singapore Airlines
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Fri, Aug 15 - Sun, Aug 31
 Logo
12:05 am - 3:00 pmSFO-KNO
24h 55m2 stops
 Logo
9:20 am - 10:55 pmKNO-SFO
27h 35m2 stops
$1,031
Find Deal
Sat, Oct 4 - Mon, Nov 3
 Logo
12:50 am - 7:50 pmSFO-KNO
29h 00m2 stops
 Logo
1:30 pm - 7:50 amKNO-SFO
33h 20m2 stops
$1,048
Find Deal
Sat, Aug 9 - Sat, Aug 23
China Airlines Logo
1:05 am - 6:40 pmSFO-KNO
27h 35m2 stops
China Airlines Logo
12:50 pm - 8:30 pmKNO-SFO
45h 40m2 stops
$1,223China Airlines
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Sun, Aug 10 - Sat, Aug 23
China Airlines Logo
6:50 pm - 9:30 amSFO-KNO
48h 40m3 stops
China Airlines Logo
2:10 pm - 8:30 pmKNO-SFO
44h 20m2 stops
$1,469China Airlines
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Sun, Aug 10 - Sat, Aug 23
Qatar Airways Logo
3:55 pm - 8:30 amSFO-KNO
50h 35m2 stops
Qatar Airways Logo
3:45 pm - 1:35 pmKNO-SFO
35h 50m2 stops
$1,493Qatar Airways
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Sat, Aug 16 - Sun, Aug 31
Qatar Airways Logo
3:55 pm - 3:00 pmSFO-KNO
33h 05m2 stops
Qatar Airways Logo
3:45 pm - 1:35 pmKNO-SFO
35h 50m2 stops
$1,528Qatar Airways
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Sat, Jun 28 - Tue, Jul 1
Emirates Logo
5:05 pm - 9:25 pmSFO-KNO
38h 20m2 stops
Emirates Logo
10:25 am - 2:00 pmKNO-SFO
41h 35m2 stops
$3,797Emirates
Find Deal
Useful Info

KAYAK's insights & trends for San Francisco to Sumatra flights

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

Can I save money by flying with a layover from San Francisco to Sumatra?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $1,595, prices are generally cheapest when you fly direct.


Good to know

Low seasonSeptember
High seasonSeptember
Cheapest flight$471
Best time to beat the crowds with an average 38% drop in price.
Most popular time to fly and prices are also 38% lower on average.
Flight from San Francisco to Medan

FAQs - booking Sumatra flights

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

    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 Sumatra.

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

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

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

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from San Francisco to Sumatra 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 Sumatra?

    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 Sumatra 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 Sumatra?

    The cheapest time of day to fly to Sumatra is generally in the morning, when round-trip flights cost $1,098 on average. The most expensive time of day to fly to Sumatra is generally at night, which is peak travel time and where the average cost of a ticket is $1,252.

Top airline flying from San Francisco to Sumatra

 
See real verified KAYAK customer reviews for airlines flying from San Francisco to Sumatra. 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 Sumatra? 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 1308 reviews
7.9Comfort
8.6Crew
7.7Food
8.0Entertainment
8.2Boarding
Airline reviews

Food from Surabaya was below average but from Singapore is much better

8.0 ExcellentJencien, Jun 2025SIN - SUB
Read more Singapore Airlines reviews

Food from Surabaya was below average but from Singapore is much better

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.

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.

Everything was great keep up the good work 😁, can't ask for more.

Flight from SFO did not include entertainment as it was not working the entire duration of the flight. Was informed that there would be a $350 voucher for the inconvenience. Uncertain how the voucher will be provided.

The food options and quality could use some more excitement and variety.

Great airline. Excellent service, good food & lots of TV movies/shows to choose from.

Overall, very good. The food was better than expected with the exception of the pork and potatoes dinner at the end of the flight. My family all selected that dish and did not set it. I tried a bite also and it was honestly terrible. Also, it would be helpful to know when the snacks in the back of the plane are available.

On time boarding I would like to see ground hostess to help transit customers to direct them to the right terminal and boarding gate. Last night, all the transit customers on SQ484 arriving Singapore had to merry go round to look for terminal and boarding gate to board SQ128 transit to KL Malaysia. We went to Terminal 3 taking the Skytrain to T3 and back to T3 to get out to look for different Skytrain to T2. On arrival t2, we had to go round to ask which boarding gate to KL. We only had 5 minutes to make to the boarding time at 6:55pm but we already spent more than 30 minutes running around to find the boarding gate. We were late at the boarding gate.

Everything you need to know for your flight to Sumatra

Information on your arrival and departure airports

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