456 € Cheap Flights from Trieste to San Francisco International

Return selected

origin

Enter the city you're flying from, or choose from the options below

Include nearby airports

selected

destination

. Enter your destination, or choose from the options below

Include nearby airports

selected

Travellers and cabin class, 1 Adult, Economy

Compare Trieste to San Francisco International flight deals

Find the cheapest month or even day of the year to fly to San Francisco International

Book the best San Francisco International fare with no extra fees

Flight deals from Trieste to San Francisco International

Looking for a cheap last-minute deal or the best return flight from Trieste Airport to San Francisco International Airport? If you want to travel next month, return fares start from 636 €. Find the lowest prices on one-way and return tickets right here.

San Francisco.456 € per passenger.Departing Tue, 1 Sep, returning Tue, 15 Sep.Return flight with ITA Airways.Outbound indirect flight with ITA Airways, departs from Trieste on Tue, 1 Sep, arriving in San Francisco International.Inbound indirect flight with ITA Airways, departs from San Francisco International on Tue, 15 Sep, arriving in Trieste.Price includes taxes and charges.From 456 €, select.

San Francisco.481 € per passenger.Departing Thu, 17 Sep, returning Sat, 10 Oct.Return flight with ITA Airways.Outbound indirect flight with ITA Airways, departs from Trieste on Thu, 17 Sep, arriving in San Francisco International.Inbound indirect flight with ITA Airways, departs from San Francisco International on Sat, 10 Oct, arriving in Trieste.Price includes taxes and charges.From 481 €, select.

San Francisco.485 € per passenger.Departing Thu, 29 Oct, returning Sat, 7 Nov.Return flight with ITA Airways.Outbound indirect flight with ITA Airways, departs from Trieste on Thu, 29 Oct, arriving in San Francisco International.Inbound indirect flight with ITA Airways, departs from San Francisco International on Sat, 7 Nov, arriving in Trieste.Price includes taxes and charges.From 485 €, select.

San Francisco.505 € per passenger.Departing Mon, 31 Aug, returning Mon, 7 Sep.Return flight with Lufthansa.Outbound indirect flight with Lufthansa, departs from Trieste on Mon, 31 Aug, arriving in San Francisco International.Inbound indirect flight with Lufthansa, departs from San Francisco International on Mon, 7 Sep, arriving in Trieste.Price includes taxes and charges.From 505 €, select.

San Francisco.505 € per passenger.Departing Thu, 1 Oct, returning Sat, 10 Oct.Return flight with Lufthansa.Outbound indirect flight with Lufthansa, departs from Trieste on Thu, 1 Oct, arriving in San Francisco International.Inbound indirect flight with Lufthansa, departs from San Francisco International on Sat, 10 Oct, arriving in Trieste.Price includes taxes and charges.From 505 €, select.

San Francisco.573 € per passenger.Departing Tue, 18 May, returning Thu, 3 Jun.Return flight with ITA Airways.Outbound indirect flight with ITA Airways, departs from Trieste on Tue, 18 May, arriving in San Francisco International.Inbound indirect flight with ITA Airways, departs from San Francisco International on Thu, 3 Jun, arriving in Trieste.Price includes taxes and charges.From 573 €, select.

San Francisco.636 € per passenger.Departing Thu, 20 Aug, returning Mon, 24 Aug.Return flight with Air Dolomiti and United.Outbound indirect flight with Air Dolomiti, departs from Trieste on Thu, 20 Aug, arriving in San Francisco International.Inbound indirect flight with United, departs from San Francisco International on Mon, 24 Aug, arriving in Trieste.Price includes taxes and charges.From 636 €, select.

San Francisco.650 € per passenger.Departing Sun, 12 Jul, returning Sun, 26 Jul.Return flight with Lufthansa.Outbound indirect flight with Lufthansa, departs from Trieste on Sun, 12 Jul, arriving in San Francisco International.Inbound indirect flight with Lufthansa, departs from San Francisco International on Sun, 26 Jul, arriving in Trieste.Price includes taxes and charges.From 650 €, select.

San Francisco.702 € per passenger.Departing Thu, 5 Nov, returning Thu, 26 Nov.Return flight with ITA Airways.Outbound indirect flight with ITA Airways, departs from Trieste on Thu, 5 Nov, arriving in San Francisco International.Inbound indirect flight with ITA Airways, departs from San Francisco International on Thu, 26 Nov, arriving in Trieste.Price includes taxes and charges.From 702 €, select.

San Francisco.729 € per passenger.Departing Sat, 10 Apr, returning Sat, 24 Apr.Return flight with Lufthansa.Outbound indirect flight with Lufthansa, departs from Trieste on Sat, 10 Apr, arriving in San Francisco International.Inbound indirect flight with Lufthansa, departs from San Francisco International on Sat, 24 Apr, arriving in Trieste.Price includes taxes and charges.From 729 €, select.

San Francisco.782 € per passenger.Departing Thu, 4 Feb, returning Wed, 10 Feb.Return flight with ITA Airways and Air France.Outbound indirect flight with ITA Airways, departs from Trieste on Thu, 4 Feb, arriving in San Francisco International.Inbound indirect flight with Air France, departs from San Francisco International on Wed, 10 Feb, arriving in Trieste.Price includes taxes and charges.From 782 €, select.

San Francisco.849 € per passenger.Departing Thu, 24 Dec, returning Sat, 9 Jan.Return flight with Ryanair and Aer Lingus.Outbound indirect flight with Ryanair, departs from Trieste on Thu, 24 Dec, arriving in San Francisco International.Inbound indirect flight with Aer Lingus, departs from San Francisco International on Sat, 9 Jan, arriving in Trieste.Price includes taxes and charges.From 849 €, select.

San Francisco.900 € per passenger.Departing Sat, 6 Mar, returning Mon, 29 Mar.Return flight with Wizz Air Malta and Aer Lingus.Outbound indirect flight with Wizz Air Malta, departs from Trieste on Sat, 6 Mar, arriving in San Francisco International.Inbound indirect flight with Aer Lingus, departs from San Francisco International on Mon, 29 Mar, arriving in Trieste.Price includes taxes and charges.From 900 €, select.

San Francisco.906 € per passenger.Departing Mon, 20 Jul, returning Tue, 4 Aug.Return flight with Lufthansa.Outbound indirect flight with Lufthansa, departs from Trieste on Mon, 20 Jul, arriving in San Francisco International.Inbound indirect flight with Lufthansa, departs from San Francisco International on Tue, 4 Aug, arriving in Trieste.Price includes taxes and charges.From 906 €, select.

San Francisco.925 € per passenger.Departing Sat, 5 Dec, returning Mon, 14 Dec.Return flight with Ryanair and Lufthansa.Outbound indirect flight with Ryanair, departs from Trieste on Sat, 5 Dec, arriving in San Francisco International.Inbound indirect flight with Lufthansa, departs from San Francisco International on Mon, 14 Dec, arriving in Trieste.Price includes taxes and charges.From 925 €, select.

San Francisco.943 € per passenger.Departing Fri, 31 Jul, returning Mon, 5 Oct.Return flight with Lufthansa.Outbound indirect flight with Lufthansa, departs from Trieste on Fri, 31 Jul, arriving in San Francisco International.Inbound indirect flight with Lufthansa, departs from San Francisco International on Mon, 5 Oct, arriving in Trieste.Price includes taxes and charges.From 943 €, select.

Find the cheapest month to fly from Trieste to San Francisco International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Trieste to San Francisco International flights are currently cheapest in September.

Jul

Aug

Sep

Oct

Nov

Dec

Jan

Feb

Mar

Apr

May

Jun

Trieste to San Francisco International: Alternative routes

Compare routes from Trieste to San Francisco below. You may find an airport to fly into that's cheaper, faster, or easier than San Francisco International.

Trieste to San Francisco: Flight information

The things to know before you go.

Cheapest flight found	456 €
Cheapest month to fly	September

Finding cheap flights from Trieste to San Francisco International: Frequently asked questions

How much are return flights from Trieste to San Francisco International?

The best price we found for a return flight from Trieste to San Francisco International is 456 €. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

Which airlines fly direct from Trieste to San Francisco International?

Currently, there are no airlines that fly direct from Trieste to San Francisco International. But we found flights with one or more stops from 456 €.

How many flights are there a week from Trieste to San Francisco International?

As of July 2026, there are no flights flying from Trieste to San Francisco International.

When is the cheapest time to fly from Trieste to San Francisco International?

The cheapest month to fly from Trieste to San Francisco International is usually September.

Which upcoming date is cheapest to fly from Trieste Airport to San Francisco International Airport on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Trieste Airport to San Francisco International Airport on Tuesday, 1 September 2026.

Can I get a direct flight from Trieste Airport to San Francisco International Airport?

No airlines currently offer direct flights between Trieste Airport and San Francisco International Airport. Most routes have one or more stops.

How can I find the best flight deal to San Francisco International?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to San Francisco International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to San Francisco?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to San Francisco is around 40 days in advance, so don’t leave your flight to the last minute.

Which is the cheapest airline to fly from Trieste Airport to San Francisco International with?

Currently, ITA Airways offers the cheapest flight tickets to San Francisco International.

Flying from Trieste Airport (TRS) to San Francisco International Airport (SFO): what you need to know

San Francisco's timezone is UTC-8, making San Francisco nine hours behind Trieste.
Give yourself plenty of time to make your TRS to SFO flight. It's generally best to arrive two hours before international departures and an hour ahead for domestic flights.
Flying during a peak month like July? Major public holidays and other high seasons can mean longer queues at security. Play it safe and arrive up to four hours ahead of an international flight and two hours before domestic departures.

How to find the cheapest flights from Trieste Airport (TRS) to San Francisco International Airport (SFO)

The lowest price we've seen for a one-way Trieste Airport to San Francisco International Airport flight is 384 €. A round-trip fare right now is 456 €. Depending on the availability and when you book, these fares could change.
It's often best to book in advance if you want to get cheap tickets from TRS to SFO. That's because airlines adjust prices based on demand, which tends to increase closer to departure.
The 'Whole month' search tool shows you the cheapest flights from Trieste Airport to San Francisco International Airport throughout the month. It's a good way to snap up a bargain if your trip dates are flexible.
Picking up cheap flights from TRS to SFO couldn't be easier with Price Alerts. Simply create one of these automatic alerts and we'll let you know as soon as a lower fare pops up.
Tailor your trip using filters. Select your preferred arrival and departure times, airlines and total journey duration. You can also sort the results by 'Fastest,' 'Cheapest' or 'Best' flights from Trieste Airport to San Francisco International Airport.

Handy information about Trieste Airport (TRS)

Trieste Airport maintains a solid on-time performance, making delays less likely. Departures from TRS arrive on schedule 87% of the time.
Trieste Airport is around 32 kilometres from central Trieste. If you're driving, ride-sharing or catching a taxi from the centre, it'll take 35 minutes or so to get there, depending on the traffic.
Expect a trip time of around 45 minutes when using public transport.
Catching an early flight from Trieste Airport to San Francisco International Airport? Avoid the last-minute rush to the terminal (and catch some extra z's) by choosing one of these stays close to TRS:

Arriving at San Francisco International Airport (SFO)

If you're landing on a late Trieste Airport to San Francisco International Airport flight, few things top the convenience of being near the terminal. Grab your suitcases from the carousel and then be showered and resting soon after at one of these accommodation options near SFO:
Get your adventure underway by picking up a San Francisco International Airport rental car. Grab your wheels from Dollar, Thrifty or Hertz and experience the lesser-explored corners of San Francisco and beyond.
Secure the lowest price by booking your vehicle from San Francisco International Airport around one week before your trip.

Getting from San Francisco International Airport (SFO) to central San Francisco

San Francisco International Airport to central San Francisco has a drive time of about 25 minutes. It's approximately 21 kilometres away.
If you're travelling on public transport, expect a journey of about 35 minutes.

When to fly to San Francisco International Airport (SFO)

July is the most popular month for flights from Trieste Airport to San Francisco International Airport. To skip the crowds, go to San Francisco in March.
Lock in your flight from Trieste Airport to San Francisco International Airport for September if you'd like to visit San Francisco during its warmest month. Expect temperatures of between 12ºC (54ºF) and 24ºC (75ºF).
Look for cheap tickets from TRS to SFO in January if you'd rather travel during cooler conditions. Temperatures are at their lowest around then, ranging between 5ºC (41ºF) and 16ºC (61ºF) on average.

Explore more of the United States

San Jose is just one of the many places in the United States waiting to be discovered after you've experienced San Francisco. Around 64 kilometres away to the south-east, its top attractions include Winchester Mystery House, The Tech Interactive and Santa Clara Valley.
Around 257 kilometres south-east of San Francisco, Fresno is another favourite stop in the United States. Experience this destination's highlights firsthand at Forestiere Underground Gardens, Shinzen Japanese Garden and Fresno Chaffee Zoo.