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Trieste

$511+ Cheap flights from San Diego (SAN) to Trieste (TRS)

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 6/4. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — TRS
Jun 28 — Jul 51
Sun 6/28
Sun 7/5
1 adult, Economy
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Cheap flight deals from San Diego to Trieste

Cheapest flights from San Diego to Trieste
Explore the most affordable flight options available from San Diego to Trieste. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 29, 2026.

This Cheapflightsfares deal was found by Cheapflights users on 5/24. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/911:55 am
SAN
-
TRS
2 stops17h 00m
Lufthansa
Thu 7/166:15 am
TRS
-
SAN
2 stops21h 17m
Lufthansa
Deal found 5/24$1,084
This United Airlines deal was found by Cheapflights users on 5/26. 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 10/66:35 am
SAN
-
TRS
2 stops18h 50m
United Airlines
Wed 10/146:35 am
TRS
-
SAN
2 stops21h 05m
United Airlines
Deal found 5/26$1,272
This United Airlines deal was found by Cheapflights users on 5/24. 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.
Thu 7/96:40 am
SAN
-
TRS
2 stops18h 45m
United Airlines
Thu 7/166:35 am
TRS
-
SAN
3 stops47h 18m
United Airlines
Deal found 5/24$1,617
This Mytrip deal was found by Cheapflights users on 5/24. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/95:15 pm
SAN
-
TRS
3 stops32h 10m
Multiple Airlines
Thu 7/162:40 pm
TRS
-
SAN
3 stops33h 45m
Multiple Airlines
Deal found 5/24$2,182

Find flight deals from San Diego to Trieste

Discover tips and strategies to find the most affordable flight options for your journey from San Diego (SAN) to Trieste (TRS). 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 May 29, 2026.

Most accurate provider

Ovago
3 stars

Most trusted provider

Ovago
3 stars

Round-trip from

$1,084
(Cheapflightsfares)

One-way from

$511
(Kiwi.com)
Provider with most accurate pricing for San Diego-Trieste Ronchi dei Legionari flight deals.
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Provider most trusted by Cheapflights users for San Diego-Trieste Ronchi dei Legionari flights.
Search Deals
From San Diego to Trieste Ronchi dei Legionari
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One-way flight from San Diego to Trieste Ronchi dei Legionari
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Cheapflights Fare Finder

 
Customize your flight search to find flights from San Diego to Trieste 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 May 29, 2026.
Use the filters below to find and compare flights from San Diego to Trieste that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

San DiegoTrieste

SAN - TRS

SANTRS

San Diego

Tue 10/6

6:35 am-10:25 am

2 stops18h 50m

Trieste Ronchi dei Legionari

Wed 10/14

6:35 am-6:40 pm

2 stops21h 05m

$1,272

San DiegoTrieste

SAN - TRS

SANTRS

San Diego

Thu 7/9

6:40 am-10:25 am

2 stops18h 45m

Trieste Ronchi dei Legionari

Thu 7/16

6:35 am-8:53 pm

3 stops47h 18m

$1,617

San DiegoTrieste

SAN - TRS

SANTRS

San Diego

Thu 7/9

5:15 pm-10:25 am

3 stops32h 10m

Trieste Ronchi dei Legionari

Thu 7/16

2:40 pm-3:25 pm

3 stops33h 45m

$2,182
Cheapest one-way
Quickest one-way

San DiegoTrieste

SAN - TRS

SANTRS

San Diego

Thu 6/4

8:54 am-10:05 am

2 stops40h 11m

$511

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/27

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

Have a flexible travel schedule? Discover the best time to fly to Trieste 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.

Related info for your journey

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

    There are many flights that can get you from San Diego to Trieste in 18h 50m. Fly via United Airlines to get the fastest option. There are 6192 mi between San Diego and Trieste.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from San Diego to Trieste by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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