$411 Find Cheap Flights from Trieste to California

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Trieste to California departing on 5/28. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to California

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Trieste to California, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Trieste to California, as well as popular online travel agencies
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Cheap Flights from Trieste to California

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Los Angeles
Los Angeles1 stop$591
San Francisco
San Francisco1 stop$537
San Diego
San Diego2 stops$1,192
Los Angeles
Los Angeles1 stop$591
San Francisco
San Francisco1 stop$537
San Diego
San Diego2 stops$1,192

Book Cheap Trieste to California Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Trieste to California that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Trieste to California

Wed, Sep 9 - Wed, Sep 23
ITA Airways Logo
7:15 pm - 1:15 pm
TRS
-
SFO
27h 00m
1 stop
ITA Airways Logo
3:15 pm - 6:30 pm
SFO
-
TRS
18h 15m
1 stop
$537ITA Airways
Wed, Sep 9 - Wed, Sep 23
Lufthansa Logo
2:40 pm - 7:50 pm
TRS
-
SFO
14h 10m
1 stop
Lufthansa Logo
1:50 pm - 10:25 pm
SFO
-
TRS
23h 35m
2 stops
$572Lufthansa
Fri, May 15 - Tue, May 19
ITA Airways Logo
6:35 am - 1:15 pm
TRS
-
SFO
15h 40m
1 stop
ITA Airways Logo
3:15 pm - 2:30 pm
SFO
-
TRS
14h 15m
1 stop
$585ITA Airways
Thu, Oct 15 - Mon, Oct 19
ITA Airways Logo
7:15 pm - 1:15 pm
TRS
-
LAX
27h 00m
1 stop
ITA Airways Logo
3:15 pm - 2:30 pm
LAX
-
TRS
14h 15m
1 stop
$591ITA Airways
Thu, Oct 15 - Mon, Oct 19
ITA Airways Logo
7:15 pm - 1:15 pm
TRS
-
LAX
27h 00m
1 stop
ITA Airways Logo
3:15 pm - 2:30 pm
LAX
-
TRS
14h 15m
1 stop
$592ITA Airways
Thu, Oct 15 - Mon, Oct 19
ITA Airways Logo
7:15 pm - 1:15 pm
TRS
-
LAX
27h 00m
1 stop
ITA Airways Logo
3:15 pm - 2:30 pm
LAX
-
TRS
14h 15m
1 stop
$593ITA Airways
Tue, May 12 - Sat, May 16
Lufthansa Logo
6:20 am - 5:56 pm
TRS
-
LAX
20h 36m
2 stops
Lufthansa Logo
5:30 pm - 10:15 pm
LAX
-
TRS
19h 45m
2 stops
$641Lufthansa
Thu, Oct 15 - Mon, Oct 19
ITA Airways Logo
7:15 pm - 1:15 pm
TRS
-
SFO
27h 00m
1 stop
ITA Airways Logo
3:15 pm - 2:30 pm
SFO
-
TRS
14h 15m
1 stop
$651ITA Airways
Fri, Aug 28 - Mon, Aug 31
United Airlines Logo
6:35 am - 7:25 pm
TRS
-
SFO
21h 50m
1 stop
United Airlines Logo
10:35 pm - 10:25 am
SFO
-
TRS
50h 50m
2 stops
$804United Airlines
Thu, Oct 15 - Mon, Oct 19
United Airlines Logo
6:35 am - 7:19 pm
TRS
-
SFO
21h 44m
2 stops
United Airlines Logo
8:10 am - 10:25 am
SFO
-
TRS
17h 15m
2 stops
$805United Airlines
Booking Insights

KAYAK's insights & trends for Trieste to California flights

Get data-powered insights and trends into flights from Trieste to California to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Trieste to California?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Trieste to California departing in October.

What is the cheapest month to fly from Trieste to California?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Trieste to California, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Trieste to California is April, when tickets cost $442 (return) on average. On the other hand, the most expensive months are July and December, when the average cost of round-trip tickets is $695 and $687 respectively.

Find deals

Good to know

Low seasonJanuary
Cheapest flight$411
Best time to beat the crowds but there is an average 35% increase in price.
Most popular time to fly with an average 18% increase in price.
Flight from Trieste to San Francisco

FAQs - booking California flights

  • How does KAYAK find such low prices on flights from Trieste to California?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Trieste to California.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Trieste to California?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Trieste to California is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Trieste to California?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Trieste to California with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Trieste to California?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Trieste to California up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Trieste to California

 
See real verified KAYAK customer reviews for airlines flying from Trieste to California. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Trieste to California? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
6.7
ITA AirwaysOverall score based on 1199 reviews
6.9Boarding
6.7Comfort
6.2Entertainment
6.0Food
7.3Crew
Airline reviews

ITA changed our 9 hr direct flight without giving any reason to 4 stop overs 24 hrs flight without delays.

2.0 MediocreAnonymous, Apr 2026
FCO - IAD
Read more ITA Airways reviews

ITA changed our 9 hr direct flight without giving any reason to 4 stop overs 24 hrs flight without delays.

Poor food choices for AVML. Totally out of the world food. Bad food menu.

Flight attendant really had bad behavior.. yelled at people when she is trying to defend, to have favor w her people..!

Appreciated being met with a glass of sparkling wine - also the warm cleansing towel offered before the meal. The food was tasty!

First, ITA lost my bag and the baggage team showed no regard in trying to find it. Second, I had paid for priority boarding as part of a first class ticket and instead they disregarded boarding groups and we all boarded at the same time. Third, wasn't allowed to select my seat in advance even with a first class ticket. When I was assigned bulkhead, I was told I would need to pay to change my seat. Overall, very disappointing experience.

Inside plane needs to be updated, the lady sitting behind me was saying the frame from the window fell on her lap right before taking off and seats are very uncomfortable, cushioning is need of repair ASAP.

I did not leave to Italy yet. We had technical problems on flight from SF to Maimi and had to land in Denver and wait for another plane to take us to Miami, so I missed my plane to Italy. I am still waiting for the Agency to fix my flight till today the haven’t done anything and I am paying for my Hotel stay. Everyday they are promising to fix my flight, they are not doing so and they are not even looking for another solution

Overbooked. They left a lot of passengers on the ground

Need better food options. Need warm food both times Stevie was provided. Bathrooms are too small. For an international flights, seats are small and leg room isn’t enough. And for an international flight, serving spirits should be included, not just Italian beer and cheap wine. All the tv/film entertainment is quite old and not updated, but the size of the screen was good.

my flight from Rome to Boston was on a very old plane. My video and audio did not work.

Everything you need to know for your flight from Trieste to California

Information on your arrival and departure airports

Trieste (TRS)