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Cheap flights from San Francisco to Trieste from $497

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Francisco to Trieste departing on 6/28. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from San Francisco to Trieste

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
8:10 am - 4:35 pm
SFO
-
TRS
23h 25m
2 stops
Multiple Airlines Logo
7:15 pm - 12:40 pm
TRS
-
SFO
26h 25m
3 stops
$791Multiple Airlines
Sat, Apr 11 - Mon, Apr 20
ITA Airways Logo
3:15 pm - 2:30 pm
SFO
-
TRS
14h 15m
1 stop
ITA Airways Logo
7:15 pm - 8:50 pm
TRS
-
SFO
34h 35m
2 stops
$798ITA Airways
Sat, Apr 11 - Mon, Apr 20
Multiple Airlines Logo
6:23 pm - 10:25 am
SFO
-
TRS
55h 02m
2 stops
Multiple Airlines Logo
3:15 pm - 1:15 pm
TRS
-
SFO
31h 00m
1 stop
$810Multiple Airlines
Sat, Apr 11 - Mon, Apr 20
Multiple Airlines Logo
6:23 pm - 10:25 am
SFO
-
TRS
55h 02m
2 stops
Multiple Airlines Logo
7:15 pm - 5:44 pm
TRS
-
SFO
31h 29m
2 stops
$815Multiple Airlines
Sat, Apr 11 - Mon, Apr 20
ITA Airways Logo
3:15 pm - 2:30 pm
SFO
-
TRS
14h 15m
1 stop
ITA Airways Logo
3:15 pm - 1:15 pm
TRS
-
SFO
31h 00m
1 stop
$833ITA Airways
Sat, Apr 11 - Mon, Apr 20
ITA Airways Logo
8:50 am - 6:30 pm
SFO
-
TRS
24h 40m
2 stops
ITA Airways Logo
7:15 pm - 6:57 pm
TRS
-
SFO
32h 42m
2 stops
$862ITA Airways
Sat, Apr 11 - Mon, Apr 20
ITA Airways Logo
8:49 am - 2:30 pm
SFO
-
TRS
20h 41m
2 stops
ITA Airways Logo
7:15 pm - 1:15 pm
TRS
-
SFO
27h 00m
1 stop
$864ITA Airways
Wed, Apr 1 - Thu, Apr 9
Lufthansa Logo
2:40 pm - 2:00 pm
SFO
-
TRS
14h 20m
1 stop
Lufthansa Logo
6:00 am - 12:40 pm
TRS
-
SFO
15h 40m
1 stop
$868Lufthansa
Sat, Aug 1 - Sat, Aug 15
Lufthansa Logo
2:40 pm - 1:45 pm
SFO
-
TRS
14h 05m
1 stop
Lufthansa Logo
6:00 am - 12:40 pm
TRS
-
SFO
15h 40m
1 stop
$871Lufthansa
Sun, Aug 2 - Sun, Aug 16
Lufthansa Logo
2:40 pm - 1:45 pm
SFO
-
TRS
14h 05m
1 stop
Lufthansa Logo
6:00 am - 12:40 pm
TRS
-
SFO
15h 40m
1 stop
$873Lufthansa
Sun, Aug 2 - Sat, Aug 15

ITA Airways flights from San Francisco to Trieste

Our best ITA Airways deals on San Francisco to Trieste flight tickets
ITA Airways
Apr 11
SFO3:15 pmSan Francisco
14h 15m
1 stop
TRS2:30 pmTrieste Ronchi dei Legionari
Apr 20
TRS7:15 pmTrieste Ronchi dei Legionari
34h 35m
2 stops
SFO8:50 pmSan Francisco
$798
ITA Airways
Apr 11
SFO3:15 pmSan Francisco
14h 15m
1 stop
TRS2:30 pmTrieste Ronchi dei Legionari
Apr 20
TRS3:15 pmTrieste Ronchi dei Legionari
31h 00m
1 stop
SFO1:15 pmSan Francisco
$833
ITA Airways
Apr 11
SFO8:50 amSan Francisco
24h 40m
2 stops
TRS6:30 pmTrieste Ronchi dei Legionari
Apr 20
TRS7:15 pmTrieste Ronchi dei Legionari
32h 42m
2 stops
SFO6:57 pmSan Francisco
$862

Lufthansa flights from San Francisco to Trieste

Our best Lufthansa deals on San Francisco to Trieste flight tickets
Lufthansa
Aug 1
SFO2:40 pmSan Francisco
14h 20m
1 stop
TRS2:00 pmTrieste Ronchi dei Legionari
Aug 15
TRS6:00 amTrieste Ronchi dei Legionari
15h 40m
1 stop
SFO12:40 pmSan Francisco
$868
Lufthansa
Aug 2
SFO2:40 pmSan Francisco
14h 05m
1 stop
TRS1:45 pmTrieste Ronchi dei Legionari
Aug 16
TRS6:00 amTrieste Ronchi dei Legionari
15h 40m
1 stop
SFO12:40 pmSan Francisco
$871
Lufthansa
Aug 2
SFO2:40 pmSan Francisco
14h 05m
1 stop
TRS1:45 pmTrieste Ronchi dei Legionari
Aug 15
TRS6:00 amTrieste Ronchi dei Legionari
15h 40m
1 stop
SFO12:40 pmSan Francisco
$873

momondo Fare Finder

 
Customize your flight search to find flights from San Francisco to Trieste that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated February 10, 2026.
Use the filters below to find and compare flights from San Francisco to Trieste that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San FranciscoTrieste

SFO - TRS

SFOTRS

San Francisco

Sat 4/11

8:10 am-4:35 pm

2 stops23h 25m

Trieste Ronchi dei Legionari

Mon 4/20

7:15 pm-12:40 pm

3 stops26h 25m

$791

San FranciscoTrieste

SFO - TRS

SFOTRS

San Francisco

Sat 4/11

3:15 pm-2:30 pm

1 stop14h 15m

Trieste Ronchi dei Legionari

Mon 4/20

7:15 pm-8:50 pm

2 stops34h 35m

$798

San FranciscoTrieste

SFO - TRS

SFOTRS

San Francisco

Sat 4/11

6:23 pm-10:25 am

2 stops55h 02m

Trieste Ronchi dei Legionari

Mon 4/20

3:15 pm-1:15 pm

1 stop31h 00m

$810

San FranciscoTrieste

SFO - TRS

SFOTRS

San Francisco

Sat 4/11

6:23 pm-10:25 am

2 stops55h 02m

Trieste Ronchi dei Legionari

Mon 4/20

7:15 pm-5:44 pm

2 stops31h 29m

$815

San FranciscoTrieste

SFO - TRS

SFOTRS

San Francisco

Sat 4/11

3:15 pm-2:30 pm

1 stop14h 15m

Trieste Ronchi dei Legionari

Mon 4/20

3:15 pm-1:15 pm

1 stop31h 00m

$833

San FranciscoTrieste

SFO - TRS

SFOTRS

San Francisco

Sat 4/11

8:50 am-6:30 pm

2 stops24h 40m

Trieste Ronchi dei Legionari

Mon 4/20

7:15 pm-6:57 pm

2 stops32h 42m

$862

San FranciscoTrieste

SFO - TRS

SFOTRS

San Francisco

Wed 4/1

8:49 am-2:30 pm

2 stops20h 41m

Trieste Ronchi dei Legionari

Thu 4/9

7:15 pm-1:15 pm

1 stop27h 00m

$864

San FranciscoTrieste

SFO - TRS

SFOTRS

San Francisco

Sat 8/1

2:40 pm-2:00 pm

1 stop14h 20m

Trieste Ronchi dei Legionari

Sat 8/15

6:00 am-12:40 pm

1 stop15h 40m

$868

San FranciscoTrieste

SFO - TRS

SFOTRS

San Francisco

Sun 8/2

2:40 pm-1:45 pm

1 stop14h 05m

Trieste Ronchi dei Legionari

Sun 8/16

6:00 am-12:40 pm

1 stop15h 40m

$871

San FranciscoTrieste

SFO - TRS

SFOTRS

San Francisco

Sun 8/2

2:40 pm-1:45 pm

1 stop14h 05m

Trieste Ronchi dei Legionari

Sat 8/15

6:00 am-12:40 pm

1 stop15h 40m

$873

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
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See travel insights to Trieste from

How to get the cheapest flight ticket from San Francisco to Trieste

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What airlines fly to Trieste?

United Airlines, ITA Airways and Lufthansa are the top three most popular airlines that fly to Trieste from San Francisco according to our data. United Airlines is the first choice among our users, with 29% of people opting to fly with this airline when traveling to Trieste. Keep in mind that there are 14 different airlines that fly to Trieste on a routine basis, so you have a few additional options to choose from.

When to book flights from San Francisco to Trieste

Are you open to changing your travel dates? Check out the ideal times to fly from San Francisco to Trieste according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap San Francisco to Trieste (SFO to TRS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Francisco to Trieste

Fastest flight time

14h 15m

Direct flights

None
The fastest flight from San Francisco to Trieste takes 14h 15m
There are no direct flights from San Francisco to Trieste. There are no popular flight routes from San Francisco to Trieste.
Search flight deals

  • How far is San Francisco to Trieste Ronchi dei Legionari by plane?

    There are 6057.3 mi between San Francisco and Trieste Ronchi dei Legionari. A reasonable flight in good conditions will take 14h 15m.

  • When did momondo last update prices for flights from San Francisco Airport to Trieste Ronchi dei Legionari Airport?

    Prices for flights from San Francisco Airport to Trieste Ronchi dei Legionari Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from San Francisco Airport to Trieste Ronchi dei Legionari Airport?

  • How old do you have to be to fly from San Francisco Airport to Trieste Ronchi dei Legionari Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from San Francisco Airport to Trieste Ronchi dei Legionari Airport.

  • What documentation or ID do you need to fly to Trieste Ronchi dei Legionari Airport?

    The travel and health documents you'll need for your trip to Trieste Ronchi dei Legionari Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Trieste Ronchi dei Legionari Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from San Francisco to Trieste?

Best airlines flying from San Francisco to Trieste

Compare and see reviews for airlines that fly from San Francisco to Trieste with momondo
Airline
Rating
Free Cancellation
Price
LufthansaPriceFrom $693Free CancellationRating
6.8
7,779 reviews
Search Lufthansa flights
ITA AirwaysPriceFrom $762Free CancellationRating
6.7
1,145 reviews
Search ITA Airways flights

Traveling to a place near Trieste?

Book flights to Trieste if you plan to visit one of these locations
Udine
Grado

Why use momondo?

Why should I use momondo to find a flight deal from San Francisco to Trieste?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from San Francisco to Trieste for you.

Can I find flights from San Francisco to Trieste with flexible booking policies on momondo?

Yes. All flights to Trieste from San Francisco on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from San Francisco to Trieste?

Once all potential San Francisco to Trieste flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from San Francisco to Trieste right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Trieste, momondo offers a useful price alert feature which will track prices for flights to Trieste from San Francisco and alert you when they change.

An easier way to manage your Trieste trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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Fly your favorite airline to Trieste

Airlines are sorted and displayed according to clicks in the past 7 days on momondo
United Airlines
ITA Airways
Lufthansa
SWISS
Scandinavian Airlines
British Airways
Turkish Airlines
American Airlines
Condor
Delta
Vueling
Air France
Air Canada