TRS - SFO

$529 Find Cheap Flights from Trieste to San Francisco

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Trieste to San Francisco departing on 5/1. 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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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$529
Overall average: $761
ITA Airways
Fri 5/1Sat 5/9
TRS - SFO • 1 stop
Cheapest one-way
$683
TAP AIR PORTUGAL
Wed 5/27
TRS - SFO • 2 stops
Top airlines
ITA Airways
Cheapest • from $529 (round-trip)
Lufthansa
Best reviews • 6.8 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Trieste and San Francisco. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Rome (FCO)
Cheapest • Avg $614 (round-trip)
Frankfurt am Main (FRA)
Shortest trip • 15h 14m (one-way)
Insights
Insights
Insights
Insights
When to travel
October
Cheapest • 19% price drop
June
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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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

Fri, May 1 - Sat, May 9
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
$529ITA Airways
Fri, May 1 - Sat, May 9
ITA Airways Logo
6:35 am - 6:56 pm
TRS
-
SFO
21h 21m
2 stops
ITA Airways Logo
3:15 pm - 2:30 pm
SFO
-
TRS
14h 15m
1 stop
$531ITA Airways
Tue, Apr 21 - Tue, Apr 28
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
$537ITA Airways
Tue, Apr 21 - Tue, Apr 28
ITA Airways Logo
6:35 am - 6:57 pm
TRS
-
SFO
21h 22m
2 stops
ITA Airways Logo
3:15 pm - 2:30 pm
SFO
-
TRS
14h 15m
1 stop
$540ITA Airways
Sat, Apr 25 - Sat, May 2
ITA Airways Logo
6:35 am - 1:15 pm
TRS
-
SFO
15h 40m
1 stop
ITA Airways Logo
5:30 am - 10:25 am
SFO
-
TRS
19h 55m
2 stops
$555ITA Airways
Sat, Apr 25 - Sat, May 2
ITA Airways Logo
6:35 am - 1:15 pm
TRS
-
SFO
15h 40m
1 stop
ITA Airways Logo
3:15 pm - 10:25 am
SFO
-
TRS
34h 10m
1 stop
$558ITA Airways
Tue, Apr 21 - Tue, Apr 28
ITA Airways Logo
6:35 am - 5:12 pm
TRS
-
SFO
19h 37m
2 stops
ITA Airways Logo
12:00 pm - 2:30 pm
SFO
-
TRS
17h 30m
2 stops
$561ITA Airways
Tue, Apr 28 - Fri, May 8
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
$584ITA Airways
Wed, Apr 15 - Sun, Apr 19
ITA Airways Logo
6:35 am - 1:15 pm
TRS
-
SFO
15h 40m
1 stop
ITA Airways Logo
12:00 pm - 10:55 pm
SFO
-
TRS
25h 55m
2 stops
$585ITA Airways
Wed, Apr 29 - Tue, May 12
ITA Airways Logo
6:35 am - 1:15 pm
TRS
-
SFO
15h 40m
1 stop
ITA Airways Logo
6:30 am - 2:30 pm
SFO
-
TRS
23h 00m
2 stops
$587ITA 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.

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 January and August, where the average cost of round-trip tickets is $1,010 and $966 respectively.

Find deals

Good to know

Low seasonOctober
Cheapest flight$529
Best time to beat the crowds with an average 19% drop in price.
Most popular time to fly with an average 10% 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 $683 for a one-way ticket and $529 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 7844 reviews
6.8Comfort
6.5Entertainment
7.6Crew
6.3Food
7.0Boarding
Airline reviews

How about changing the personal out to more friendly human beings? This team was pretty arrogant. No fun!!

4.0 OkayHarald, Mar 2026
FRA - MIA
Read more Lufthansa reviews

How about changing the personal out to more friendly human beings? This team was pretty arrogant. No fun!!

Everything could have been better. What needed to be wrong with United went wrong

Excellent service. The crew goes above their way to make the customer comfortable.

It was good. The seats in economy weren’t bad

I hated the FRA Airport. Confusing signage, including the path to Immigration and Security It seems that the airport grew haphazardly over the years. I have been through multiple WW Hubs with much better experiences.

Excellent service; they helped me reschedule so I can fly in an earlier flight

Wonderful staff. The boarding process can be improved a little better by adequate prior communication but all in all they did fine. However the boarding gate was quite unfreindly to elderly and who needs help with sevral stairs.

Flight map did not work. Crew was great, food was good, plane took off on time and landed early. That's all I can ask.

I had a good comfortable seat. There was nearly an hour delay. There was an accident with the champagne, but I was well compensated. These things happen sometimes.

Very good. Comfortable and I felt well taken care of from start to finish

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

Information on your arrival and departure airports

Trieste (TRS)
San Francisco (SFO)