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$351+ Cheap flights from Basel EuroAirport Swiss (BSL) to San Diego (SAN)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/23. Fares are subject to change and may not be available on all flights or dates of travel.
BSL — SAN
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from Basel to San Diego

Discover tips and strategies to find the most affordable flight options for your journey from Basel (BSL) to San Diego (SAN). 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 11, 2025.

Round-trip from

$351
(Billigflug)

Popular in

December

Cheapest in

February

Average price

$738
From Basel EuroAirport Swiss to San Diego
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($106 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($32 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Basel to San Diego

Cheapest flights from Basel to San Diego
Explore the most affordable flight options available from Basel to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Billigflug deal was found by Cheapflights users on 9/11. 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 Billigflug is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2312:15 pmBSL - SAN
2 stops19h 50mMultiple Airlines
Mon 10/2710:44 amSAN - BSL
2 stops19h 51mMultiple Airlines
Deal found 9/11$351
This British Airways deal was found by Cheapflights users on 9/11. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/17:10 amBSL - SAN
1 stop18h 00mBritish Airways
Fri 11/141:23 pmSAN - BSL
2 stops23h 07mBritish Airways
Deal found 9/11$634
This British Airways deal was found by Cheapflights users on 9/11. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/236:10 amBSL - SAN
1 stop17h 40mBritish Airways
Mon 10/277:00 pmSAN - BSL
1 stop36h 05mBritish Airways
Deal found 9/11$635
This Billigflug deal was found by Cheapflights users on 9/11. 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 Billigflug is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/106:00 amBSL - SAN
2 stops18h 48mMultiple Airlines
Sat 10/2512:18 pmSAN - BSL
2 stops19h 17mMultiple Airlines
Deal found 9/11$637
This American Airlines deal was found by Cheapflights users on 9/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2312:15 pmBSL - SAN
2 stops20h 25mAmerican Airlines
Mon 10/277:00 pmSAN - BSL
1 stop15h 15mAmerican Airlines
Deal found 9/11$639
This American Airlines deal was found by Cheapflights users on 9/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/66:35 amBSL - SAN
2 stops21h 11mAmerican Airlines
Tue 10/215:00 pmSAN - BSL
2 stops20h 50mAmerican Airlines
Deal found 9/11$648
This American Airlines deal was found by Cheapflights users on 9/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/17:10 amBSL - SAN
2 stops19h 32mAmerican Airlines
Fri 11/142:55 pmSAN - BSL
2 stops17h 10mAmerican Airlines
Deal found 9/11$649
This KLM deal was found by Cheapflights users on 9/11. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/610:10 amBSL - SAN
1 stop34h 50mMultiple Airlines
Tue 10/2112:00 pmSAN - BSL
2 stops16h 10mMultiple Airlines
Deal found 9/11$657

Cheapflights Fare Finder

 
Customize your flight search to find flights from Basel to San Diego 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 11, 2025.
Use the filters below to find and compare flights from Basel EuroAirport Swiss to San Diego that are best for you.

Fly from

Basel

Fly to

San Diego

Route

Depart

Return

Price

BaselSan Diego

BSL - SAN

BSLSAN

Basel EuroAirport Swiss

Fri 2/20

7:00 am-4:10 pm

1 stop18h 10m

San Diego

Tue 2/24

6:00 pm-10:20 pm

1 stop19h 20m

$633

BaselSan Diego

BSL - SAN

BSLSAN

Basel EuroAirport Swiss

Sat 11/1

7:10 am-5:10 pm

1 stop18h 00m

San Diego

Fri 11/14

1:23 pm-9:30 pm

2 stops23h 07m

$634

BaselSan Diego

BSL - SAN

BSLSAN

Basel EuroAirport Swiss

Thu 10/23

6:10 am-2:50 pm

1 stop17h 40m

San Diego

Mon 10/27

7:00 pm-3:05 pm

1 stop36h 05m

$635

BaselSan Diego

BSL - SAN

BSLSAN

Basel EuroAirport Swiss

Fri 10/10

6:00 am-3:48 pm

2 stops18h 48m

San Diego

Sat 10/25

12:18 pm-4:35 pm

2 stops19h 17m

$637

BaselSan Diego

BSL - SAN

BSLSAN

Basel EuroAirport Swiss

Sat 10/11

6:35 am-6:46 pm

2 stops21h 11m

San Diego

Sat 10/25

3:01 pm-4:35 pm

2 stops16h 34m

$637

BaselSan Diego

BSL - SAN

BSLSAN

Basel EuroAirport Swiss

Fri 11/14

6:55 am-1:28 pm

3 stops39h 33m

$359

BaselSan Diego

BSL - SAN

BSLSAN

Basel EuroAirport Swiss

Fri 11/14

7:00 am-8:48 pm

2 stops22h 48m

$400

BaselSan Diego

BSL - SAN

BSLSAN

Basel EuroAirport Swiss

Thu 10/9

7:00 am-11:50 pm

3 stops49h 50m

$549

BaselSan Diego

BSL - SAN

BSLSAN

Basel EuroAirport Swiss

Sat 11/29

8:25 pm-11:45 am

3 stops48h 20m

$590

BaselSan Diego

BSL - SAN

BSLSAN

Basel EuroAirport Swiss

Thu 10/9

12:15 pm-6:00 pm

1 stop14h 45m

$809

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 12 results
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Best time to book a flight from Basel to San Diego

Have a flexible travel schedule? Discover the best time to fly to San Diego from Basel 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.

Related info for your journey

Find useful and relevant information for your journey from Basel to San Diego. 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 Basel EuroAirport Swiss to San Diego?

    A quick flight from Basel EuroAirport Swiss to San Diego can take about 18h. American Airlines provides one of the quickest options available for as low as $634. Basel EuroAirport Swiss and San Diego are separated by a distance of 5913 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Basel to San Diego 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 Basel EuroAirport Swiss to San Diego?

    Currently, August is the cheapest month in which you can book a flight from Basel EuroAirport Swiss to San Diego (average of $286). Flying from Basel EuroAirport Swiss to San Diego in March is currently the most expensive (average of $366). 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

Traveling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
El Cajon
Chula Vista
La Mesa
Poway
Lemon Grove
Coronado
Imperial Beach
National City
Alpine

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