$899+ 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 12/9. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — TRS
Nov 26 — Dec 31
Round-trip
1 adult, Economy
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Find cheap flights from San Diego to Trieste with Cheapflights
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
Cheapest
Best
Last-minute
One-way
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 October 27, 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 October 27, 2026.
This KLM deal was found by Cheapflights users on 10/24. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/96:15 am -
2 stops23h 15m
Wed 12/166:35 am -
2 stops24h 40m
Deal found 10/24![KLM logo]()
$899
This Expedia deal was found by Cheapflights users on 10/27. 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.
Wed 11/116:20 am -
2 stops23h 10m
Sun 11/153:15 pm -
2 stops38h 49m
Deal found 10/27![KLM logo]()
$1,092
This United Airlines deal was found by Cheapflights users on 10/24. 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.
Wed 12/97:00 am -
2 stops18h 25m
Wed 12/166:35 am -
3 stops23h 06m
Deal found 10/24![United Airlines logo]()
$1,201
This United Airlines deal was found by Cheapflights users on 10/26. 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.
Sun 12/67:41 pm -
3 stops29h 44m
Wed 12/96:35 am -
2 stops24h 58m
Deal found 10/26![United Airlines logo]()
$1,505
This Mytrip deal was found by Cheapflights users on 10/27. 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.
Wed 11/115:35 pm -
3 stops20h 20m
Sun 11/152:25 pm -
3 stops42h 32m
Deal found 10/27![Multiple Airlines logo]()
$1,697
This United Airlines deal was found by Cheapflights users on 10/24. 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.
Sat 10/3110:40 pm -
2 stops27h 45m
Sun 11/156:35 am -
2 stops20h 59m
Deal found 10/24![United Airlines logo]()
$2,258
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 October 27, 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 October 27, 2026.
This KAYAK deal was found by Cheapflights users on 10/26. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/511:00 am -
2 stops17h 45m
Sun 4/186:20 am -
2 stops24h 37m
Deal found 10/26![Lufthansa logo]()
$973
This United Airlines deal was found by Cheapflights users on 10/26. 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 4/68:35 am -
2 stops16h 50m
Fri 4/166:35 am -
3 stops26h 42m
Deal found 10/26![United Airlines logo]()
$1,210
This United Airlines deal was found by Cheapflights users on 10/26. 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.
Sun 4/47:00 am -
2 stops18h 25m
Sat 4/176:35 am -
2 stops20h 55m
Deal found 10/26![United Airlines logo]()
$1,321
This United Airlines deal was found by Cheapflights users on 10/26. 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.
Sun 12/67:41 pm -
3 stops29h 44m
Wed 12/96:35 am -
2 stops24h 58m
Deal found 10/26![United Airlines logo]()
$1,505
Last-minute flights from San Diego to TriesteDiscover last-minute flight deals from San Diego to Trieste. Data last updated October 27, 2026 and is based on user searches.
Discover last-minute flight deals from San Diego to Trieste. Data last updated October 27, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 10/24. 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.
Sat 10/3110:40 pm -
2 stops27h 45m
Sun 11/156:35 am -
2 stops20h 59m
Deal found 10/24![United Airlines logo]()
$2,258
This Expedia deal was found by Cheapflights users on 10/27. 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.
Wed 11/116:20 am -
2 stops23h 10m
Sun 11/153:15 pm -
2 stops38h 49m
Deal found 10/27![KLM logo]()
$1,092
This Mytrip deal was found by Cheapflights users on 10/27. 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.
Wed 11/115:35 pm -
3 stops20h 20m
Sun 11/152:25 pm -
3 stops42h 32m
Deal found 10/27![Multiple Airlines logo]()
$1,697
One-way flights from San Diego to TriesteSearch for one-way flight options from San Diego to Trieste. Find affordable one-way fares based on user searches. Data last updated October 27, 2026.
Search for one-way flight options from San Diego to Trieste. Find affordable one-way fares based on user searches. Data last updated October 27, 2026.
This ITA Airways deal was found by Cheapflights users on 10/23. 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 ITA Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1010:48 am -
2 stops18h 42m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![Multiple Airlines logo]()
$4,746
This ITA Airways deal was found by Cheapflights users on 10/23. 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 ITA Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/127:30 am -
2 stops26h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![ITA Airways logo]()
$5,071
This United Airlines deal was found by Cheapflights users on 10/23. 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.
Wed 11/118:45 am -
2 stops40h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![United Airlines logo]()
$6,941
This United Airlines deal was found by Cheapflights users on 10/23. 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.
Mon 11/94:18 pm -
2 stops57h 07m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![United Airlines logo]()
$7,049
This United Airlines deal was found by Cheapflights users on 10/23. 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 11/86:45 am -
2 stops42h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![United Airlines logo]()
$7,191
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 October 27, 2026.
Most accurate provider | Ovago 3 stars |
|---|---|
Most trusted provider | Ovago 3 stars |
Round-trip from | $899 (KLM) |
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 October 27, 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
Cheapest round-trip
San DiegoTrieste
SAN San Diego - TRS Trieste Ronchi dei Legionari
SANTRS
San Diego
Mon 4/5
11:00 am-1:45 pm
2 stops17h 45m
Trieste Ronchi dei Legionari
Sun 4/18
6:20 am-9:57 pm
2 stops24h 37m
$973
San DiegoTrieste
SAN San Diego - TRS Trieste Ronchi dei Legionari
SANTRS
San Diego
Tue 4/6
8:35 am-10:25 am
2 stops16h 50m
Trieste Ronchi dei Legionari
Fri 4/16
6:35 am-12:17 am
3 stops26h 42m
$1,210
San DiegoTrieste
SAN San Diego - TRS Trieste Ronchi dei Legionari
SANTRS
San Diego
Sun 4/4
7:00 am-10:25 am
2 stops18h 25m
Trieste Ronchi dei Legionari
Sat 4/17
6:35 am-6:30 pm
2 stops20h 55m
$1,321
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
$1,505
Quickest round-trip
San DiegoTrieste
SAN San Diego - TRS Trieste Ronchi dei Legionari
SANTRS
San Diego
Thu 11/12
7:30 am-6:30 pm
2 stops26h 00m
Trieste Ronchi dei Legionari
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$5,071
San DiegoTrieste
SAN San Diego - TRS Trieste Ronchi dei Legionari
SANTRS
San Diego
Wed 11/11
8:45 am-10:25 am
2 stops40h 40m
Trieste Ronchi dei Legionari
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$6,941
San DiegoTrieste
SAN San Diego - TRS Trieste Ronchi dei Legionari
SANTRS
San Diego
Mon 11/9
4:18 pm-10:25 am
2 stops57h 07m
Trieste Ronchi dei Legionari
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$7,049
San DiegoTrieste
SAN San Diego - TRS Trieste Ronchi dei Legionari
SANTRS
San Diego
Sun 11/8
12:37 pm-10:25 am
3 stops60h 48m
Trieste Ronchi dei Legionari
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$7,304
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
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.
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