TRS - SFO

$565 Find Cheap Flights from Trieste to San Francisco

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 San Francisco departing on 6/24. 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 San Francisco

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Trieste to San Francisco, 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 San Francisco, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$661
Typical prices: $629-$748
ITA Airways
Mon 6/1Wed 6/17
TRS - SFO • 1 stop
Cheapest one-way
$565
Multiple Airlines
Wed 6/24
TRS - SFO • 3 stops
Top airlines
ITA Airways
Cheapest • from $661 (round-trip)
Lufthansa
Best reviews • 6.8 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
October
Cheapest • 19% price drop
August
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to San Francisco!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Trieste to San Francisco (TRS-SFO)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Trieste to San Francisco 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 San Francisco

Mon, Jun 1 - Wed, Jun 17
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
$661ITA Airways
Mon, Mar 16 - Sun, Mar 22
Lufthansa Logo
2:40 pm - 9:10 pm
TRS
-
SFO
14h 30m
1 stop
Lufthansa Logo
2:35 pm - 10:25 pm
SFO
-
TRS
23h 50m
1 stop
$662Lufthansa
Mon, Mar 16 - Sun, Mar 22
Lufthansa Logo
2:40 pm - 9:10 pm
TRS
-
SFO
14h 30m
1 stop
Lufthansa Logo
10:40 pm - 10:25 pm
SFO
-
TRS
15h 45m
2 stops
$695Lufthansa
Sun, May 31 - Wed, Jun 17
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
$723ITA Airways
Mon, Jun 1 - Wed, Jun 17
ITA Airways Logo
7:15 pm - 6:38 pm
TRS
-
SFO
32h 23m
2 stops
ITA Airways Logo
3:15 pm - 2:30 pm
SFO
-
TRS
14h 15m
1 stop
$727ITA Airways
Fri, Mar 13 - Fri, Mar 20
Lufthansa Logo
6:25 am - 4:55 pm
TRS
-
SFO
18h 30m
1 stop
Lufthansa Logo
1:50 pm - 2:05 pm
SFO
-
TRS
16h 15m
2 stops
$732Lufthansa
Fri, Mar 13 - Fri, Mar 20
Lufthansa Logo
6:25 am - 9:20 pm
TRS
-
SFO
22h 55m
2 stops
Lufthansa Logo
1:50 pm - 2:05 pm
SFO
-
TRS
16h 15m
2 stops
$738Lufthansa
Tue, Jun 2 - Thu, Jun 18
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
$758ITA Airways
Mon, Mar 16 - Sun, Mar 22
Lufthansa Logo
2:40 pm - 2:20 pm
TRS
-
SFO
31h 40m
2 stops
Lufthansa Logo
10:40 pm - 10:25 pm
SFO
-
TRS
15h 45m
2 stops
$759Lufthansa
Fri, May 29 - Sun, Jun 14
ITA Airways Logo
6:35 am - 1:15 pm
TRS
-
SFO
15h 40m
1 stop
ITA Airways Logo
3:15 pm - 10:55 pm
SFO
-
TRS
22h 40m
1 stop
$789ITA Airways
Booking Insights

KAYAK's insights & trends for Trieste to San Francisco flights

Get data-powered insights and trends into flights from Trieste to San Francisco 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 San Francisco?

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 San Francisco departing in June.

What is the cheapest month to fly from Trieste to San Francisco?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Trieste to San Francisco, 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 San Francisco is October, where tickets cost $624 (return) on average. On the other hand, the most expensive months are August and January, where the average cost of round-trip tickets is $1,028 and $1,010 respectively.

Good to know

Low seasonMay
Cheapest flight$565
Best time to beat the crowds but there is an average 2% increase in price.
Most popular time to fly with an average 33% increase in price.
Flight from Trieste to San Francisco

When to book flights from Trieste to San Francisco

Are your dates flexible? Find out the best times to travel from Trieste to San Francisco based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Trieste to San Francisco

  • What is the cheapest flight from Trieste to San Francisco?

    In the last 3 days, the lowest price for a flight from Trieste to San Francisco was $565 for a one-way ticket and $661 for a round-trip.

  • Do I need a passport to fly between Trieste and San Francisco?

    A passport is required to fly from Trieste to San Francisco.

  • Which aircraft models fly most regularly from Trieste to San Francisco?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Trieste to San Francisco?

    Star Alliance is the only airline alliance operating flights between Trieste and San Francisco.

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

    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 San Francisco.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Francisco from Trieste 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 San Francisco?

    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 to San Francisco with an airline and back to Trieste with another airline. Booking your flights between Trieste and SFO can sometimes prove cheaper using this method.

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

    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 to San Francisco from Trieste 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 San Francisco

 
See real verified KAYAK customer reviews for airlines flying from Trieste to San Francisco. 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 San Francisco? 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 7749 reviews
6.3Food
7.0Boarding
6.8Comfort
7.6Crew
6.4Entertainment
Airline reviews

Not great - seats were very narrow and food was terrible.

2.0 MediocrePawan, Jan 2026
FRA - JFK
Read more Lufthansa reviews

Not great - seats were very narrow and food was terrible.

Some of the crew was sassy and not super helpful. The food was okay, but it seems like they were all unprepared compared to my flight I did from JFK to Frankfurt

We missed our flight. There was not enough time built into the layover to get through immigration, customs, bagclaim, bag rechecking, and the long trip to another terminal and gate. Kayak really screwed up. We took the bus up to Wisconsin and then were picked up in Brookfield by private car. It was lucky we didnt miss the last bus out.

We were in premium economy seats that appeared to be locked in plae, No reclining. My aching back.

I don’t understand how they charge as much as they do for such a poor experience

Lufthansa flight LH04414 from Munich to Washington DC, was fine. Efficient and safe!

I wish the plane had pod seating for business class. I had a window seat (8K) and I had to climb over the person sitting on the aisle when I needed to get up. Also there is no partition between the seats for privacy when sleeping. The Asian airlines have much nicer business class seating. Their seats are wider for better comfort when sleeping.

Bumpy ride, not Lufthansa‘s fault. Crew managed a situation over a back rest to far down well. It was two iles behind me. The person putting the seat down, against the other person’s knees, was quite rude and belligerent and needed to be told in a no nonsense matter to stopp. Male flight attendant did good job.

Patrick and the whole crew were amazing! Hope to have this team for all my European trips.

This review is based on 2 things: 1. The lack of hygiene on the plane. 2. William - the head flight attendant. The lack of cleanliness on the plane upon arrival was appalling. Being given a sanitizing wipe upon boarding of the plane is shocking when you consider the cost of a business class flight. UA expects me to do their job and clean all the bread, food and debris left from previous guests. Does this sound normal to you. The seat, the food table and the sides were full of crumbs, chocolate and dirt. When I told the flight attendant they just gave me more wipes so I could clean it myself. Secondly, William the business cabin head flight attendant was so busy flirting with a couple in the front that his attention to the other guests was minimal. He continuously asked them if they were ok or if they needed anything and it didn’t matter if the rest of us needed anything. And if you are the lead attendant shouldn’t you be checking if the bathrooms in business class are clean and needing toilet paper. There were 2 bathrooms in business. Halfway through the flight the first bathroom was closed and the second bathroom was dirty and had no toilet paper one hour and a half before the flight landed. He needs additional training on prioritizing things. He should care less about flirting and more about his work

Everything you need to know for your flight from Trieste to San Francisco

Information on your arrival and departure airports