$586 Cheap Flights from Trieste (TRS) to San Francisco (SFO)

View $586 flight on Tue, Apr 14, 2026Opens in a new window

Popular airlines from Friuli Venezia Giulia Airport (TRS) to San Francisco Intl. Airport (SFO)

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

Prices were available within the past 7 days and start at $586 for one-way flights and $580 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

ITA Airways
Tue, Oct 21 - Thu, Oct 30
TRS
Trieste
SFO
San Francisco
$580 Roundtrip, found 3 days ago
$580
Roundtrip
found 3 days ago
Select ITA Airways flight, departing Tue, Oct 21 from Trieste to San Francisco, returning Thu, Oct 30, priced at $580 found 3 days ago
ITA Airways
Wed, Oct 22 - Thu, Oct 30
TRS
Trieste
SFO
San Francisco
$592 Roundtrip, found 2 days ago
$592
Roundtrip
found 2 days ago
Select ITA Airways flight, departing Wed, Oct 22 from Trieste to San Francisco, returning Thu, Oct 30, priced at $592 found 2 days ago
ITA Airways
Tue, Oct 21 - Thu, Oct 30
TRS
Trieste
SFO
San Francisco
$602 Roundtrip, found 3 days ago
$602
Roundtrip
found 3 days ago
Select ITA Airways flight, departing Tue, Oct 21 from Trieste to San Francisco, returning Thu, Oct 30, priced at $602 found 3 days ago
ITA Airways
Wed, Oct 22 - Tue, Oct 28
TRS
Trieste
SFO
San Francisco
$620 Roundtrip, found 2 days ago
$620
Roundtrip
found 2 days ago
Select ITA Airways flight, departing Wed, Oct 22 from Trieste to San Francisco, returning Tue, Oct 28, priced at $620 found 2 days ago
ITA Airways
Sun, Nov 16 - Thu, Dec 4
TRS
Trieste
SFO
San Francisco
$626 Roundtrip, found 3 days ago
$626
Roundtrip
found 3 days ago
Select ITA Airways flight, departing Sun, Nov 16 from Trieste to San Francisco, returning Thu, Dec 4, priced at $626 found 3 days ago
ITA Airways
Wed, Oct 15 - Thu, Oct 30
TRS
Trieste
SFO
San Francisco
$640 Roundtrip, found 3 days ago
$640
Roundtrip
found 3 days ago
Select ITA Airways flight, departing Wed, Oct 15 from Trieste to San Francisco, returning Thu, Oct 30, priced at $640 found 3 days ago
Lufthansa
Wed, Nov 26 - Wed, Dec 3
TRS
Trieste
SFO
San Francisco
$689 Roundtrip, found 1 day ago
$689
Roundtrip
found 1 day ago
Select Lufthansa flight, departing Wed, Nov 26 from Trieste to San Francisco, returning Wed, Dec 3, priced at $689 found 1 day ago
TAP Portugal
Tue, Dec 23 - Wed, Jan 7
TRS
Trieste
SFO
San Francisco
$849 Roundtrip, found 8 hours ago
$849
Roundtrip
found 8 hours ago
Select TAP Portugal flight, departing Tue, Dec 23 from Trieste to San Francisco, returning Wed, Jan 7, priced at $849 found 8 hours ago
KLM
Thu, Dec 4 - Thu, Dec 18
TRS
Trieste
SFO
San Francisco
$892 Roundtrip, found 3 days ago
$892
Roundtrip
found 3 days ago
Select KLM flight, departing Thu, Dec 4 from Trieste to San Francisco, returning Thu, Dec 18, priced at $892 found 3 days ago
Swiss International Air Lines
Thu, Feb 12 - Sat, Feb 28
TRS
Trieste
SFO
San Francisco
$959 Roundtrip, found 1 day ago
$959
Roundtrip
found 1 day ago
Select Swiss International Air Lines flight, departing Thu, Feb 12 from Trieste to San Francisco, returning Sat, Feb 28, priced at $959 found 1 day ago

Alternative airports near San Francisco

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to San Francisco Intl. SFO. Cheapest and Closest option available. Average driving time to city center is 19 minutes. Flights from $747
SFO
San Francisco Intl.
CheapestClosest
Average driving time to city center19 min
Flights from $747
Flights from Trieste (TRS) to San Francisco (SFO)
Origin airport
Friuli Venezia Giulia
Destination airport
San Francisco Intl.
Airlines serving
Air France, Brussels Airlines, ITA Airways, KLM, Lufthansa, Swiss International Air Lines, TAP Portugal, Turkish Airlines
Roundtrip price
$580
Distance
6053 mi

Trieste to San Francisco Flights

The cheapest times to fly from Trieste to San Francisco

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Trieste to San Francisco are during the month of October. You can find some of the cheapest flights from Trieste to San Francisco with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Trieste to San Francisco

Sunday is one of the best days to book for cheap flights from Trieste to San Francisco: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Trieste to San Francisco

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Trieste to San Francisco in 2025. You can also book with separate airlines for your outbound and return journeys, from $586 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Trieste to San Francisco flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Trieste to San Francisco airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Friuli Venezia Giulia Airport (TRS) to San Francisco Intl. Airport (SFO) cost?
Grab a cheap one-way flight from $586 or cheap return flight from $580 from Friuli Venezia Giulia Airport (TRS) to San Francisco Intl. Airport (SFO) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Friuli Venezia Giulia Airport (TRS) to San Francisco Intl. Airport (SFO)?
October is the most affordable month to fly from TRS to SFO. Traveling outside of peak seasons is often the key to finding better deals on flights.
What is the cheapest airline that flies from Friuli Venezia Giulia Airport (TRS) to San Francisco Intl. Airport (SFO)?
To find the cheapest airline that'll fly you from TRS to SFO, use Expedia's filter tool. Tailor your search based on your travel style, such as preferred carriers and flight duration. You can then sort your results by "Price (lowest to highest)" to discover the cheapest flight right away.
How many flights per day from Friuli Venezia Giulia Airport (TRS) to San Francisco Intl. Airport (SFO)?
There aren't any daily nonstop flights departing from Friuli Venezia Giulia Airport (TRS) to San Francisco Intl. Airport (SFO). But you can choose flights with layovers. Filter your search on Expedia to include one or two stops, and you'll be soaring above the clouds before you know it.
What day of the week has the most flights from TRS to SFO?
You'll usually find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Friuli Venezia Giulia Airport (TRS) to San Francisco Intl. Airport (SFO)?
To arrive at San Francisco Intl. Airport (SFO) without delays, opt for a flight that takes off from Friuli Venezia Giulia Airport (TRS) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Friuli Venezia Giulia Airport (TRS) to San Francisco Intl. Airport (SFO) last-minute?
Booking your plane ticket from TRS to SFO just before your getaway is generally more expensive. But if there's some wiggle room with your departure times and dates, you could grab a cheap last-minute fare.
Is it cheaper to book a TRS to SFO flight and hotel package?
Compared with arranging flights and hotels separately, booking a TRS to SFO flight and hotel package with Expedia could lead to significant savings. What's more, managing everything in one place takes the hassle out of planning your trip. Simply pick your flights and select from our extensive range of hotels, then customize your trip with extras like car rentals and activities.
Can I cancel or change the date of my flight from Friuli Venezia Giulia Airport (TRS) to San Francisco Intl. Airport (SFO)?
If you reserved your TRS to SFO flight in the last 24 hours, you may be able to cancel or modify it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for more information.

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*Available to One Key members.