Buenos Aires

$230+ Cheap flights from San Diego (SAN) to Buenos Aires (BUE)

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 9/22. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — BUE
Oct 17 — Oct 241
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Cheapflights Tip: The best prices from San Diego to Buenos Aires are usually found in September or August, booked 78 days in advance, depart on a Wednesday or Saturday and return on a Monday

Cheap flight deals from San Diego to Buenos Aires

Discover tips and strategies to find the most affordable flight options for your journey from San Diego (SAN) to Buenos Aires (BUE). 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 September 17, 2025.

Round-trip from

$631
(LATAM Airlines)

One-way from

$230
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$1,092
From San Diego to Buenos Aires (BUE)
One-way flight from San Diego to Buenos Aires (BUE)
Highest demand for flights based on searches. 5% potential increase in price ($74 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($40 potential savings vs. average RT price).
Average for round-trip flights in September 2025

Find flight deals from San Diego to Buenos Aires

Cheapest flights from San Diego to Buenos Aires
Explore the most affordable flight options available from San Diego to Buenos Aires. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.

This Copa Airlines deal was found by Cheapflights users on 9/15. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/229:08 pmSAN - EZE
1 stop23h 47mCopa Airlines
Mon 10/65:08 amEZE - SAN
1 stop16h 49mCopa Airlines
Deal found 9/15$593
This LATAM Airlines deal was found by Cheapflights users on 9/14. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/210:30 pmSAN - AEP
2 stops36h 30mLATAM Airlines
Fri 12/512:40 pmAEP - SAN
2 stops28h 26mLATAM Airlines
Deal found 9/14$631
This Copa Airlines deal was found by Cheapflights users on 9/15. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/38:10 pmSAN - EZE
1 stop23h 50mCopa Airlines
Tue 11/113:57 amEZE - SAN
1 stop18h 06mCopa Airlines
Deal found 9/15$663
This LATAM Airlines deal was found by Cheapflights users on 9/16. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1312:11 pmSAN - EZE
2 stops21h 44mLATAM Airlines
Tue 11/187:10 amEZE - SAN
2 stops34h 53mLATAM Airlines
Deal found 9/16$705
This LATAM Airlines deal was found by Cheapflights users on 9/17. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/86:20 amSAN - AEP
2 stops29h 45mLATAM Airlines
Tue 10/1410:55 pmAEP - SAN
2 stops28h 19mLATAM Airlines
Deal found 9/17$705
This Copa Airlines deal was found by Cheapflights users on 9/14. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/178:10 pmSAN - EZE
1 stop21h 21mCopa Airlines
Sat 11/223:57 amEZE - SAN
1 stop18h 06mCopa Airlines
Deal found 9/14$744
This SmartFares deal was found by Cheapflights users on 9/16. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/12:05 pmSAN - EZE
2 stops32h 45mLATAM Airlines
Sat 11/89:55 pmEZE - SAN
2 stops41h 02mLATAM Airlines
Deal found 9/16$749
This LATAM Airlines deal was found by Cheapflights users on 9/16. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/179:59 amSAN - AEP
2 stops24h 01mLATAM Airlines
Tue 9/235:05 pmAEP - SAN
2 stops23h 23mLATAM Airlines
Deal found 9/16$750
This KAYAK deal was found by Cheapflights users on 9/16. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/162:05 pmSAN - EZE
2 stops32h 25mLATAM Airlines
Thu 10/236:40 amEZE - SAN
2 stops33h 55mLATAM Airlines
Deal found 9/16$753
This LATAM Airlines deal was found by Cheapflights users on 9/15. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/911:00 amSAN - AEP
2 stops25h 05mLATAM Airlines
Tue 10/1410:55 pmAEP - SAN
2 stops28h 19mLATAM Airlines
Deal found 9/15$765
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/148:10 pmSAN - EZE
1 stop27h 06mCopa Airlines
Sun 11/2310:01 amEZE - SAN
1 stop36h 02mCopa Airlines
Deal found 9/15$778
This Kiwi.com deal was found by Cheapflights users on 9/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/179:08 pmSAN - EZE
1 stop26h 49mCopa Airlines
Tue 9/232:33 pmEZE - SAN
1 stop31h 17mCopa Airlines
Deal found 9/16$795

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Diego to Buenos Aires 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 September 17, 2025.
Use the filters below to find and compare flights from San Diego to Buenos Aires that are best for you.

Fly from

San Diego

Fly to

Buenos Aires

Route

Depart

Return

Price

San DiegoBuenos Aires

SAN - AEP

SANAEP

San Diego

Tue 12/2

10:30 pm-4:00 pm

2 stops36h 30m

Buenos Aires Jorge Newbery

Fri 12/5

10:35 am-12:06 pm

2 stops30h 31m

$631

San DiegoBuenos Aires

SAN - AEP

SANAEP

San Diego

Sun 10/26

2:05 pm-2:00 pm

2 stops19h 55m

Buenos Aires Jorge Newbery

Sat 11/1

8:25 pm-4:19 pm

2 stops23h 54m

$850

San DiegoBuenos Aires

SAN - EZE

SANEZE

San Diego

Fri 10/31

4:10 pm-1:00 am

2 stops28h 50m

Buenos Aires Ministro Pistarini

Thu 11/6

3:57 am-5:03 pm

1 stop18h 06m

$859

San DiegoBuenos Aires

SAN - AEP

SANAEP

San Diego

Mon 11/3

12:00 pm-4:00 pm

2 stops23h 00m

Buenos Aires Jorge Newbery

Wed 11/12

6:20 pm-12:02 pm

2 stops22h 42m

$872

San DiegoBuenos Aires

SAN - EZE

SANEZE

San Diego

Mon 11/17

8:10 pm-1:00 am

1 stop23h 50m

Buenos Aires Ministro Pistarini

Fri 11/21

5:16 am-5:03 pm

1 stop16h 47m

$893

San DiegoBuenos Aires

SAN - AEP

SANAEP

San Diego

Wed 10/1

12:07 pm-4:05 pm

2 stops23h 58m

Buenos Aires Jorge Newbery

Thu 10/30

2:55 pm-9:48 am

2 stops22h 53m

$982

San DiegoBuenos Aires

SAN - AEP

SANAEP

San Diego

Wed 11/19

12:11 pm-6:40 pm

2 stops25h 29m

Buenos Aires Jorge Newbery

Wed 12/3

6:20 pm-12:06 pm

2 stops22h 46m

$998

San DiegoBuenos Aires

SAN - EZE

SANEZE

San Diego

Tue 12/2

8:00 am-9:00 am

1 stop20h 00m

Buenos Aires Ministro Pistarini

Mon 12/15

8:00 am-10:54 pm

2 stops19h 54m

$1,022

San DiegoBuenos Aires

SAN - EZE

SANEZE

San Diego

Mon 11/17

1:47 pm-9:20 am

1 stop14h 33m

Buenos Aires Ministro Pistarini

Mon 12/1

11:55 pm-11:01 am

1 stop16h 06m

$1,025

San DiegoBuenos Aires

SAN - EZE

SANEZE

San Diego

Mon 12/1

6:15 am-6:05 am

2 stops18h 50m

Buenos Aires Ministro Pistarini

Thu 12/11

8:00 am-11:46 pm

2 stops20h 46m

$1,025

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 32 results
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Best time to book a flight from San Diego to Buenos Aires

Have a flexible travel schedule? Discover the best time to fly to Buenos Aires 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 Buenos Aires

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

Use this chart to determine the optimal time to book a round-trip flight from San Diego to Buenos Aires. Price data was last updated on September 12, 2025.

Booking 78 days in advance of your planned departure date is, on average, the best time to get cheap flights from San Diego to Buenos Aires. 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 Buenos Aires?

Currently, April is the cheapest month in which you can book a flight from San Diego to Buenos Aires (average of $795). Flying from San Diego to Buenos Aires in December is currently the most expensive (average of $1,260). 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 BUE?

Find hourly flight availability from San Diego to Buenos Aires. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 17, 2025.

A simple way to save on the total cost of your ticket is to fly from San Diego to Buenos Aires in the afternoon. If you’re flexible enough to do this you can expect to save up to 23% on your trip compared to booking a flight in the evening.

How much does it cost to fly round-trip from San Diego to Buenos Aires?

Reviews of airlines servicing Buenos Aires

Get insights into the airlines that provide service to Buenos Aires. 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 Buenos Aires. Reviews last updated September 17, 2025.
Read reviews from past customers who have flown Delta, Copa Airlines, and LATAM Airlines from San Diego to Buenos Aires. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very good

Boarding

8.2

Crew

8.5

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good
8.0
Very good

Boarding

8.2

Crew

8.5

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good

Boarding

8.2

Crew

8.5

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good

Boarding

8.2

Crew

8.5

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good

Boarding

8.2

Crew

8.5

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good

Boarding

8.2

Crew

8.5

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from San Diego to Buenos Aires. 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 Diego to Buenos Aires?

    For a flight from San Diego to Buenos Aires, you will be flying from San Diego. San Diego (SAN) is just 2.6 mi from the center of the city. San Diego is the only San Diego airport and it handles 0 outbound flights to Buenos Aires per day. 4 airlines have flights to Buenos Aires from San Diego on a regular basis.

  • How long is the flight from San Diego to Buenos Aires?

    Airlines like LATAM Airlines, Copa Airlines, and Delta fly from San Diego to Buenos Aires in about 20h. The time it takes to get you to your destination can typically vary by up to 16h 30m. There are 6015 mi between San Diego and Buenos Aires. Both multi-stop and nonstop flights can be found to your destination and back.

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

    According to our current data, Copa Airlines ($557), American Airlines ($1,023), and Delta ($1,025) offers the cheapest pricing from San Diego to Buenos Aires. Copa Airlines is 55% cheaper than the average price of flights available within the next 90 days to this destination.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from San Diego to Buenos Aires 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 Buenos Aires?

    Currently, April is the cheapest month in which you can book a flight from San Diego to Buenos Aires (average of $795). Flying from San Diego to Buenos Aires in December is currently the most expensive (average of $1,260). 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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Alternative routes for San Diego to Buenos Aires

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

Top 4 airlines flying from San Diego to Buenos Aires

Discover the top 4 airlines that operate flights from San Diego to Buenos Aires. 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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Copa AirlinesCheapest$557Average$695FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$1,023Average$1,356FlexibilityNo cancel feeOn-time71%
DeltaCheapest$1,025Average$1,315FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$1,025Average$1,280FlexibilityNo cancel feeOn-time69%

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