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$413+ Cheap flights from San Diego (SAN) to Singapore (SIN)

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 2/1. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — SIN
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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1. Tell us where you want to go

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Cheapflights Tip: The best prices from San Diego to Singapore Changi are usually found in April or February, booked 8 days in advance, depart on a Tuesday or Thursday and return on a Tuesday

Cheap flight deals from San Diego to Singapore

Cheapest flights from San Diego to Singapore
Explore the most affordable flight options available from San Diego to Singapore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.

This United Airlines deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/156:15 amSAN - SIN
1 stop22h 00mUnited Airlines
Thu 1/110:10 amSIN - SAN
1 stop26h 38mUnited Airlines
Deal found 12/10$1,824
This United Airlines deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/146:15 amSAN - SIN
1 stop22h 00mUnited Airlines
Tue 1/610:20 pmSIN - SAN
1 stop28h 26mUnited Airlines
Deal found 12/10$1,874
This United Airlines deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/148:45 amSAN - SIN
2 stops31h 15mUnited Airlines
Wed 1/710:10 amSIN - SAN
2 stops26h 32mUnited Airlines
Deal found 12/10$1,878
This United Airlines deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/166:15 amSAN - SIN
1 stop22h 00mUnited Airlines
Thu 1/110:10 amSIN - SAN
1 stop24h 33mUnited Airlines
Deal found 12/10$2,023
This United Airlines deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/1511:11 amSAN - SIN
2 stops28h 49mUnited Airlines
Tue 1/610:20 pmSIN - SAN
2 stops30h 39mUnited Airlines
Deal found 12/10$2,027
This United Airlines deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/157:45 amSAN - SIN
1 stop20h 30mUnited Airlines
Mon 1/510:20 pmSIN - SAN
1 stop26h 17mUnited Airlines
Deal found 12/10$2,173
This United Airlines deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/147:45 amSAN - SIN
1 stop20h 30mUnited Airlines
Mon 1/510:20 pmSIN - SAN
1 stop26h 17mUnited Airlines
Deal found 12/10$2,223
This Korean Air deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/166:15 amSAN - SIN
2 stops46h 10mKorean Air
Wed 1/710:30 pmSIN - SAN
2 stops53h 01mKorean Air
Deal found 12/10$2,299
This United Airlines deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/178:00 pmSAN - SIN
1 stop20h 00mUnited Airlines
Wed 1/710:10 amSIN - SAN
1 stop18h 39mUnited Airlines
Deal found 12/10$2,373
This United Airlines deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/228:45 pmSAN - SIN
2 stops31h 30mUnited Airlines
Mon 1/510:20 pmSIN - SAN
2 stops28h 07mUnited Airlines
Deal found 12/10$2,377
This Air Canada deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/176:30 amSAN - SIN
2 stops56h 30mAir Canada
Thu 1/18:50 amSIN - SAN
2 stops44h 09mAir Canada
Deal found 12/10$2,382

Find flight deals from San Diego to Singapore

Discover tips and strategies to find the most affordable flight options for your journey from San Diego (SAN) to Singapore (SIN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$853
(American Airlines)

One-way from

$413
(Kiwi.com)

Popular in

December

Cheapest in

April

Average price

$1,907
Provider with most accurate pricing for San Diego-Singapore Changi flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Diego-Singapore Changi flights.
Search Deals
From San Diego to Singapore Changi
Search Deals
One-way flight from San Diego to Singapore Changi
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($161 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($63 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Diego to Singapore 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 2,558,603 searches. Data last updated December 12, 2025.
Use the filters below to find and compare flights from San Diego to Singapore that are best for you.

Fly from

San Diego

Fly to

Singapore

Route

Depart

Return

Price

San DiegoSingapore

SAN - SIN

SANSIN

San Diego

Sun 1/18

6:05 pm-5:40 am

2 stops43h 35m

Singapore Changi

Fri 1/30

8:50 am-12:03 pm

1 stop19h 13m

$914

San DiegoSingapore

SAN - SIN

SANSIN

San Diego

Sun 1/25

11:40 am-12:50 am

1 stop21h 10m

Singapore Changi

Sun 2/1

8:15 am-7:12 pm

2 stops26h 57m

$916

San DiegoSingapore

SAN - SIN

SANSIN

San Diego

Mon 1/26

6:15 am-12:50 am

2 stops26h 35m

Singapore Changi

Wed 1/28

2:20 am-9:55 am

2 stops47h 35m

$957

San DiegoSingapore

SAN - SIN

SANSIN

San Diego

Thu 1/15

5:17 pm-3:45 pm

2 stops30h 28m

Singapore Changi

Wed 1/28

4:45 pm-1:25 pm

2 stops36h 40m

$965

San DiegoSingapore

SAN - SIN

SANSIN

San Diego

Mon 2/16

11:05 am-6:55 am

2 stops27h 50m

Singapore Changi

Thu 2/26

6:35 am-2:49 pm

2 stops24h 14m

$967

San DiegoSingapore

SAN - SIN

SANSIN

San Diego

Thu 1/15

11:40 am-12:50 am

1 stop21h 10m

Singapore Changi

Tue 1/27

2:20 am-12:29 pm

2 stops26h 09m

$978

San DiegoSingapore

SAN - SIN

SANSIN

San Diego

Mon 2/16

9:00 pm-9:15 am

2 stops44h 15m

Singapore Changi

Thu 2/26

11:00 pm-4:30 pm

2 stops33h 30m

$994

San DiegoSingapore

SAN - SIN

SANSIN

San Diego

Wed 2/25

12:45 pm-7:00 am

1 stop26h 15m

Singapore Changi

Sun 3/8

8:50 am-7:40 am

2 stops38h 50m

$996

San DiegoSingapore

SAN - SIN

SANSIN

San Diego

Mon 2/16

10:09 pm-7:05 pm

1 stop28h 56m

Singapore Changi

Thu 2/26

9:15 am-11:50 am

1 stop18h 35m

$1,000

San DiegoSingapore

SAN - SIN

SANSIN

San Diego

Mon 2/16

7:50 pm-8:00 am

1 stop20h 10m

Singapore Changi

Thu 2/26

10:20 pm-12:29 am

1 stop18h 09m

$1,025

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/11

Showing 1-10 of 19 results
1
2

Compare providers for flights from San Diego to Singapore

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Diego to Singapore in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
AranGrantPrice Accuracy2 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on San Diego-Singapore flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on San Diego-Singapore flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from San Diego-Singapore flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Diego-Singapore flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Diego-Singapore flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from San Diego to Singapore

Have a flexible travel schedule? Discover the best time to fly to Singapore from San Diego with our price prediction graph.
Estimated round-trip 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 Diego to Singapore

How far ahead should I book a flight from San Diego to Singapore?

Use this chart to determine the optimal time to book a round-trip flight from San Diego to Singapore. Price data was last updated on December 5, 2025.

Booking 8 days in advance of your planned departure date is, on average, the best time to get cheap flights from San Diego to Singapore. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from San Diego to Singapore?

Currently, August is the cheapest month in which you can book a flight from San Diego to Singapore (average of $651). Flying from San Diego to Singapore in June is currently the most expensive (average of $984). 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 SAN to SIN?

Find hourly flight availability from San Diego to Singapore. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 12, 2025.

One of the essential ways to save on airfare from San Diego to Singapore is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight at noon could potentially save you up to 11% on airfare.

Reviews of airlines servicing Singapore

Get insights into the airlines that provide service to Singapore. 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 Singapore. Reviews last updated December 12, 2025.
Read through reviews of airlines operating flights from San Diego to Singapore, such as Japan Airlines, Singapore Airlines, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Japan Airlines
8.3
Very good
1,653 reviews

Entertainment

7.8

Food

7.7

Boarding

8.4

Comfort

8.2

Crew

8.7

Overall

8.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

HNL - KIX

Local boy flight attendant was amazing. Super friendly and attentive.
Japan Airlines
8.3
Very good
1,653 reviews
Japan Airlines
8.3
Very good
1,653 reviews

Entertainment

7.8

Food

7.7

Boarding

8.4

Comfort

8.2

Crew

8.7

Overall

8.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

HNL - KIX

Local boy flight attendant was amazing. Super friendly and attentive.
Singapore Airlines
8.1
Very good
1,412 reviews
Japan Airlines
8.3
Very good
1,653 reviews

Entertainment

7.8

Food

7.7

Boarding

8.4

Comfort

8.2

Crew

8.7

Overall

8.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

HNL - KIX

Local boy flight attendant was amazing. Super friendly and attentive.
United Airlines
7.4
Good
9,094 reviews
Japan Airlines
8.3
Very good
1,653 reviews

Entertainment

7.8

Food

7.7

Boarding

8.4

Comfort

8.2

Crew

8.7

Overall

8.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

HNL - KIX

Local boy flight attendant was amazing. Super friendly and attentive.
Air Canada
7.1
Good
10,517 reviews
Japan Airlines
8.3
Very good
1,653 reviews

Entertainment

7.8

Food

7.7

Boarding

8.4

Comfort

8.2

Crew

8.7

Overall

8.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

HNL - KIX

Local boy flight attendant was amazing. Super friendly and attentive.

Related info for your journey

Find useful and relevant information for your journey from San Diego to Singapore. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from San Diego to Singapore?

    For as low as $916, American Airlines can have you in Singapore from San Diego in 21h 10m. The distance from San Diego to Singapore is about 8860 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from San Diego to Singapore round-trip?

    Flying on Air Canada is currently your cheapest option to Singapore, with prices starting at $812. Additional round-trip tickets that might be worth considering are offered by Japan Airlines and Singapore Airlines, with the lowest prices starting at $893 and $894, respectively. Air Canada is 33% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from San Diego to Singapore one-way?

    To fly one-way, consider booking your trip with Air Canada, which is currently one of the cheapest options available, starting at $415. Japan Airlines flights start at $450 while deals on United Airlines start at $548 one-way.

  • Can I find deals for flights from San Diego to Singapore that include hotel bookings?

    Yes. In addition to deals on San Diego to Singapore flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Diego to Singapore?

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

  • Can I find deals for business class flights from San Diego to Singapore?

    Yes. Cheapflights offers flight deals from San Diego to Singapore 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 Diego to Singapore?

    Currently, August is the cheapest month in which you can book a flight from San Diego to Singapore (average of $651). Flying from San Diego to Singapore in June is currently the most expensive (average of $984). 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

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

Top 4 airlines flying from San Diego to Singapore

Discover the top 4 airlines that operate flights from San Diego to Singapore. 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 2,558,603 searches. Data last updated December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$812Average$992FlexibilityNo cancel feeOn-time67%
Japan AirlinesCheapest$893Average$1,132FlexibilityNo cancel feeOn-time79%
Singapore AirlinesCheapest$894Average$1,523FlexibilityNo cancel feeOn-time81%
United AirlinesCheapest$991Average$1,150FlexibilityNo cancel feeOn-time69%

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