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$510+ Cheap flights from Trieste (TRS) to San Diego (SAN)

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 1/12. Fares are subject to change and may not be available on all flights or dates of travel.
TRS — SAN
Jan 21 — Jan 281
Wed 1/21
Wed 1/28
1 adult, Economy
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Cheap flight deals from Trieste to San Diego

One-way flights from Trieste to San Diego
Search for one-way flight options from Trieste to San Diego. Find affordable one-way fares based on user searches. Data last updated December 22, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/20. 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.
Mon 1/126:15 pmTRS - SAN
3 stops58h 31mMultiple Airlines
Deal found 12/20$510
This Kiwi.com deal was found by Cheapflights users on 12/20. 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.
Sat 1/106:10 pmTRS - SAN
3 stops57h 40mMultiple Airlines
Deal found 12/20$563
This Kiwi.com deal was found by Cheapflights users on 12/20. 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.
Sun 1/119:05 pmTRS - SAN
3 stops45h 33mMultiple Airlines
Deal found 12/20$592
This Kiwi.com deal was found by Cheapflights users on 12/20. 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.
Thu 1/88:00 amTRS - SAN
3 stops44h 46mMultiple Airlines
Deal found 12/20$741
This Kiwi.com deal was found by Cheapflights users on 12/20. 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 1/75:25 pmTRS - SAN
3 stops59h 21mMultiple Airlines
Deal found 12/20$750
This Kiwi.com deal was found by Cheapflights users on 12/20. 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 1/911:15 amTRS - SAN
3 stops43h 43mMultiple Airlines
Deal found 12/20$761
This Kiwi.com deal was found by Cheapflights users on 12/20. 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.
Tue 1/611:15 amTRS - SAN
3 stops59h 14mMultiple Airlines
Deal found 12/20$833

Find flight deals from Trieste to San Diego

Discover tips and strategies to find the most affordable flight options for your journey from Trieste (TRS) 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 December 22, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars
Provider with most accurate pricing for Trieste Ronchi dei Legionari-San Diego flight deals.
Search Deals
Provider most trusted by Cheapflights users for Trieste Ronchi dei Legionari-San Diego flights.
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Trieste 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 December 22, 2025.
Use the filters below to find and compare flights from Trieste to San Diego that are best for you.

Fly from

Trieste

Fly to

San Diego

Route

Depart

Return

Price

TriesteSan Diego

TRS - SAN

TRSSAN

Trieste Ronchi dei Legionari

Mon 1/12

6:15 pm-7:46 pm

3 stops58h 31m

$510

TriesteSan Diego

TRS - SAN

TRSSAN

Trieste Ronchi dei Legionari

Sat 1/10

6:10 pm-6:50 pm

3 stops57h 40m

$563

TriesteSan Diego

TRS - SAN

TRSSAN

Trieste Ronchi dei Legionari

Sun 1/11

9:05 pm-9:38 am

3 stops45h 33m

$592

TriesteSan Diego

TRS - SAN

TRSSAN

Trieste Ronchi dei Legionari

Thu 1/8

8:00 am-7:46 pm

3 stops44h 46m

$741

TriesteSan Diego

TRS - SAN

TRSSAN

Trieste Ronchi dei Legionari

Wed 1/7

5:25 pm-7:46 pm

3 stops59h 21m

$750

TriesteSan Diego

TRS - SAN

TRSSAN

Trieste Ronchi dei Legionari

Fri 1/9

11:15 am-9:58 pm

3 stops43h 43m

$761

TriesteSan Diego

TRS - SAN

TRSSAN

Trieste Ronchi dei Legionari

Tue 1/6

11:15 am-1:29 pm

3 stops59h 14m

$833

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/20

Compare providers for flights from Trieste to San Diego

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 Trieste to San Diego in December.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*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 Trieste-San Diego flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Trieste-San Diego flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Trieste-San Diego flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Trieste-San Diego 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 Trieste-San Diego 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 Trieste to San Diego

Have a flexible travel schedule? Discover the best time to fly to San Diego from Trieste 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 Trieste to San Diego. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Trieste 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.

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