$1,122+ Cheap flights from San Diego (SAN) to Trieste (TRS)
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 12/6. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — TRS
Sep 25 — Oct 21
Round-trip
1 adult, Economy
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1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from San Diego to Trieste
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Cheapest flights from San Diego to TriesteExplore 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 August 26, 2026.
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 August 26, 2026.
This United Airlines deal was found by Cheapflights users on 8/21. 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 12/67:41 pm -
3 stops29h 44m
Wed 12/96:35 am -
2 stops24h 58m
Deal found 8/21![United Airlines logo]()
$1,122
This Expedia deal was found by Cheapflights users on 8/21. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/202:24 pm -
2 stops38h 31m
Sun 9/273:15 pm -
2 stops57h 10m
Deal found 8/21![Lufthansa logo]()
$6,282
Best flights from San Diego to TriesteDiscover carefully curated flight deals from San Diego to Trieste that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 26, 2026.
Discover carefully curated flight deals from San Diego to Trieste that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 26, 2026.
This United Airlines deal was found by Cheapflights users on 8/21. 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 12/67:41 pm -
3 stops29h 44m
Wed 12/96:35 am -
2 stops24h 58m
Deal found 8/21![United Airlines logo]()
$1,122
Last-minute flights from San Diego to TriesteDiscover last-minute flight deals from San Diego to Trieste. Data last updated August 26, 2026 and is based on user searches.
Discover last-minute flight deals from San Diego to Trieste. Data last updated August 26, 2026 and is based on user searches.
This Expedia deal was found by Cheapflights users on 8/21. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/202:24 pm -
2 stops38h 31m
Sun 9/273:15 pm -
2 stops57h 10m
Deal found 8/21![Lufthansa logo]()
$6,282
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 August 26, 2026.
Most accurate provider | Ovago 3 stars |
|---|---|
Most trusted provider | Ovago 3 stars |
Round-trip from | $1,122 (United Airlines) |
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 7,457,451 searches. Data last updated August 26, 2026.
Use the filters below to find and compare flights from San Diego to Trieste that are best for you.
Fly from
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Route
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Cheapest round-trip
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San DiegoTrieste
SAN San Diego - TRS Trieste Ronchi dei Legionari
SANTRS
San Diego
Sun 12/6
7:41 pm-10:25 am
3 stops29h 44m
Trieste Ronchi dei Legionari
Wed 12/9
6:35 am-10:33 pm
2 stops24h 58m
$1,122
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.
SAN-TRS
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
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