$388 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 4/6. 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
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 24% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Booking Insights
Flight Deals

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$567
San Francisco
San Francisco1 stop$708
San Diego
San Diego2 stops$1,243
Los Angeles
Los Angeles1 stop$567
San Francisco
San Francisco1 stop$708
San Diego
San Diego2 stops$1,243

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

Thu, Jan 15 - Wed, Jan 21
ITA Airways Logo
7:15 pm - 1:30 pm
TRS
-
LAX
27h 15m1 stop
ITA Airways Logo
3:20 pm - 10:55 pm
LAX
-
TRS
22h 35m1 stop
$567ITA Airways
Wed, Jan 28 - Wed, Feb 4
ITA Airways Logo
6:35 am - 1:30 pm
TRS
-
LAX
15h 55m1 stop
ITA Airways Logo
3:20 pm - 6:30 pm
LAX
-
TRS
18h 10m1 stop
$569ITA Airways
Wed, Jan 28 - Wed, Feb 4
ITA Airways Logo
7:35 am - 1:30 pm
TRS
-
LAX
62h 55m2 stops
ITA Airways Logo
3:20 pm - 10:55 pm
LAX
-
TRS
22h 35m1 stop
$577ITA Airways
Thu, Jan 15 - Wed, Jan 21
ITA Airways Logo
7:15 pm - 1:30 pm
TRS
-
LAX
27h 15m1 stop
ITA Airways Logo
3:20 pm - 9:10 pm
LAX
-
TRS
20h 50m2 stops
$587ITA Airways
Thu, Jan 15 - Wed, Jan 21
ITA Airways Logo
7:15 pm - 1:30 pm
TRS
-
LAX
27h 15m1 stop
ITA Airways Logo
3:20 pm - 10:55 pm
LAX
-
TRS
22h 35m1 stop
$589ITA Airways
Thu, Jan 15 - Mon, Jan 19
Lufthansa Logo
6:15 am - 12:40 pm
TRS
-
SFO
15h 25m1 stop
Lufthansa Logo
7:00 am - 2:00 pm
SFO
-
TRS
22h 00m2 stops
$708Lufthansa
Thu, Jan 29 - Thu, Feb 5
Lufthansa Logo
6:15 am - 7:09 pm
TRS
-
SFO
21h 54m2 stops
Lufthansa Logo
1:35 pm - 10:30 pm
SFO
-
TRS
23h 55m1 stop
$713Lufthansa
Wed, Jan 28 - Wed, Feb 4
KLM Logo
6:35 am - 11:04 pm
TRS
-
SFO
25h 29m2 stops
KLM Logo
7:00 am - 2:30 pm
SFO
-
TRS
22h 30m2 stops
$798KLM
Thu, Feb 19 - Mon, Feb 23
United Airlines Logo
6:35 am - 7:54 pm
TRS
-
SNA
22h 19m2 stops
United Airlines Logo
2:22 pm - 10:25 am
SNA
-
TRS
35h 03m2 stops
$1,046United Airlines
Thu, Feb 19 - Mon, Feb 23
United Airlines Logo
6:35 am - 7:54 pm
TRS
-
SNA
22h 19m2 stops
United Airlines Logo
6:50 am - 10:25 am
SNA
-
TRS
42h 35m3 stops
$1,175United 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 January.

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 March, when tickets cost $537 (return) on average. On the other hand, the most expensive months are July and December, when the average cost of round-trip tickets is $841 and $760 respectively.

What’s the cheapest day of the week to fly from Trieste to California?

The average price of all round-trip flights from Trieste to California clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to California on a Thursday, as we generally find the cheapest rates on that day for this route. On the other hand, Monday is the most expensive day to fly from Trieste to California. For your return ticket, we recommend flying on a Sunday and avoiding Fridays for the best deals.

Good to know

Low seasonJanuary
Cheapest flight$388
Best time to beat the crowds but there is an average 17% increase in price.
Most popular time to fly and prices are also 10% lower on average.
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.

  • What is the cheapest time of day to fly to California?

    The cheapest time of day to fly to California is generally at night, when round-trip flights cost $581 on average. The most expensive time of day to fly to California is generally in the morning, which is peak travel time and where the average cost of a ticket is $674.

Reviews of the top airlines 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.
6.8
LufthansaOverall score based on 7632 reviews
6.4Entertainment
7.0Boarding
6.8Comfort
6.3Food
7.6Crew
Airline reviews

Booked seats (paid extra) online and found they didn’t exist on the flight. We were then separated from the rest of our party. Given seats in the very back of the plane. We will not fly Discover or Lufthansa again. We will not book flights or travel through Kayak again!

4.0 OkayAnonymous, Dec 2025
FRA - TPA
Read more Lufthansa reviews

Booked seats (paid extra) online and found they didn’t exist on the flight. We were then separated from the rest of our party. Given seats in the very back of the plane. We will not fly Discover or Lufthansa again. We will not book flights or travel through Kayak again!

Had a few open seats and could use it for a great rest ful journey

It was very good. Service was friendly and efficient, and food was good.

Airline food is airline food, but the plane was wonderful and the seating comfort outstanding. One of my best flights in quite a while.

Crew was outstanding, helpful and friendly. Food is deteriorating. The snack at the end of the flight was not good, a greasy moosh of toast cheese snd other unidentifiable ingredients. Coming from Germany a pretzl with butter would have been better. Entertainment had a great selection.

Smooth flight with enough time for connection. Ran out of meal options. In-flight and gate staff were friendly and helpful. Good service overall.

The seat space seemed small especially when the person ahead reclined but other than that, very good.

Luggage transfer in Chicago was not performed in time. I received my luggage at my destination two days later.

Give yourself over 2+ hours layover because if flight is slighlty delayed and you miss your connection, Lufthansa will do nothing for you

We would have missed our connection from Munich to Boston but we had a van outside the plan that wisked us to our terminal. Much appreciated and we didn’t even realize that Lufthansa had done this until the announcement on disembarkation. Well organized airline! Will definitely fly Lufthansa again!!!

The toilets are very small for a long trip like this. There is no space whatsoever. Totally unusable,

This airplane is much better. Not worn out like the one we flew with fr NY to Rome. Flight attendants were ok.

Poor. The airlines left my luggage in Miami. It took 2 1/2 days to get my luggage at my destination. I was forced to buy clothes and daily items for days. There was little concern to get my bag to me which highly impacted my trip. Seats were cramped as well. Would not recommend this airline to anyone.

This was our return flight. It was slightly better than the one we took to go to Rome, mainly because the food was slightly better and more abondant. On our LA-Fco flight the food was way below average. Also, it felt like the legroom in Economy was smaller than other airlines we used in the past - my knees were touching the seat in front of me.

There was so little leg space in middle seat that the blanket/pillow accessories and my feet could not fit. Knees were 1 inch from seat in front and when person in front reclined, it was uncomfortably invasive in my space. I am not large, 5’5” and 130 pounds

Wonderful! Everyone very helpful and kind. Returning flight was cancelled but rebooking was easy.

The seats are very tight and uncomfortable. The recline position did not work.

Flight was on time, there were no issues. It was also direct to SFO. For an international flight, I call that a win.

Flight was on time and pretty standard. No Hiccups. I have no complaints, which is a lot to say about a 12 hour flight.

On both sides of my itinerary, the planes were old, the seats did not work, the seats were filthy, and the crew were unfriendly

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

Information on your arrival and departure airports