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Cheap flights from Trieste to San Francisco from $403

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Trieste to San Francisco departing on 4/26. 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 Trieste to San Francisco

Cheap round-trip flights

Enter your travel dates to find the best prices.
ITA Airways Logo
6:35 am - 1:05 pm
TRS
-
SFO
15h 30m
1 stop
ITA Airways Logo
4:05 pm - 2:30 pm
SFO
-
TRS
14h 25m
1 stop
$553ITA Airways
Mon, Mar 2 - Mon, Mar 9
ITA Airways Logo
6:35 am - 1:05 pm
TRS
-
SFO
15h 30m
1 stop
ITA Airways Logo
4:05 pm - 9:10 pm
SFO
-
TRS
21h 05m
2 stops
$582ITA Airways
Mon, Mar 2 - Mon, Mar 9
Lufthansa Logo
6:25 am - 3:55 pm
TRS
-
SFO
18h 30m
1 stop
Lufthansa Logo
2:35 pm - 2:05 pm
SFO
-
TRS
15h 30m
1 stop
$681Lufthansa
Sat, Mar 7 - Sat, Mar 14
Lufthansa Logo
6:25 am - 9:20 pm
TRS
-
SFO
23h 55m
2 stops
Lufthansa Logo
2:35 pm - 2:05 pm
SFO
-
TRS
15h 30m
1 stop
$687Lufthansa
Sat, Mar 7 - Sat, Mar 14
Lufthansa Logo
6:25 am - 8:10 pm
TRS
-
SFO
22h 45m
1 stop
Lufthansa Logo
1:50 pm - 2:05 pm
SFO
-
TRS
16h 15m
2 stops
$718Lufthansa
Fri, Mar 6 - Fri, Mar 13
Lufthansa Logo
6:25 am - 7:19 pm
TRS
-
SFO
21h 54m
2 stops
Lufthansa Logo
1:50 pm - 2:05 pm
SFO
-
TRS
16h 15m
2 stops
$724Lufthansa
Fri, Mar 6 - Fri, Mar 13
Lufthansa Logo
6:25 am - 9:20 pm
TRS
-
SFO
23h 55m
2 stops
Lufthansa Logo
1:50 pm - 2:05 pm
SFO
-
TRS
16h 15m
2 stops
$728Lufthansa
Sat, Mar 7 - Sat, Mar 14
Lufthansa Logo
6:25 am - 12:40 pm
TRS
-
SFO
15h 15m
1 stop
Lufthansa Logo
3:40 pm - 2:05 pm
SFO
-
TRS
14h 25m
1 stop
$742Lufthansa
Fri, Mar 6 - Fri, Mar 13
Lufthansa Logo
2:40 pm - 1:20 pm
TRS
-
SFO
31h 40m
2 stops
Lufthansa Logo
8:30 am - 2:00 pm
SFO
-
TRS
21h 30m
2 stops
$746Lufthansa
Mon, Mar 2 - Mon, Mar 9
Multiple Airlines Logo
7:15 pm - 2:45 pm
TRS
-
SFO
28h 30m
3 stops
Multiple Airlines Logo
10:40 pm - 2:05 pm
SFO
-
TRS
31h 25m
2 stops
$960Multiple Airlines
Fri, Mar 6 - Fri, Mar 13

ITA Airways flights from Trieste to San Francisco

Our best ITA Airways deals on Trieste to San Francisco flight tickets
ITA Airways
Mar 2
TRS6:35 amTrieste Ronchi dei Legionari
15h 30m
1 stop
SFO1:05 pmSan Francisco
Mar 9
SFO4:05 pmSan Francisco
14h 25m
1 stop
TRS2:30 pmTrieste Ronchi dei Legionari
$553
ITA Airways
Mar 2
TRS6:35 amTrieste Ronchi dei Legionari
15h 30m
1 stop
SFO1:05 pmSan Francisco
Mar 9
SFO4:05 pmSan Francisco
21h 05m
2 stops
TRS9:10 pmTrieste Ronchi dei Legionari
$582

Lufthansa flights from Trieste to San Francisco

Our best Lufthansa deals on Trieste to San Francisco flight tickets
Lufthansa
Mar 7
TRS6:25 amTrieste Ronchi dei Legionari
18h 30m
1 stop
SFO3:55 pmSan Francisco
Mar 14
SFO2:35 pmSan Francisco
15h 30m
1 stop
TRS2:05 pmTrieste Ronchi dei Legionari
$681
Lufthansa
Mar 7
TRS6:25 amTrieste Ronchi dei Legionari
23h 55m
2 stops
SFO9:20 pmSan Francisco
Mar 14
SFO2:35 pmSan Francisco
15h 30m
1 stop
TRS2:05 pmTrieste Ronchi dei Legionari
$687
Lufthansa
Mar 7
TRS6:25 amTrieste Ronchi dei Legionari
23h 55m
2 stops
SFO9:20 pmSan Francisco
Mar 14
SFO1:50 pmSan Francisco
16h 15m
2 stops
TRS2:05 pmTrieste Ronchi dei Legionari
$728

momondo Fare Finder

 
Customize your flight search to find flights from Trieste to San Francisco 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 January 22, 2026.
Use the filters below to find and compare flights from Trieste to San Francisco that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

TriesteSan Francisco

TRS - SFO

TRSSFO

Trieste Ronchi dei Legionari

Mon 3/2

6:35 am-1:05 pm

1 stop15h 30m

San Francisco

Mon 3/9

4:05 pm-2:30 pm

1 stop14h 25m

$553

TriesteSan Francisco

TRS - SFO

TRSSFO

Trieste Ronchi dei Legionari

Mon 3/2

6:35 am-1:05 pm

1 stop15h 30m

San Francisco

Mon 3/9

4:05 pm-9:10 pm

2 stops21h 05m

$582

TriesteSan Francisco

TRS - SFO

TRSSFO

Trieste Ronchi dei Legionari

Sat 3/7

6:25 am-3:55 pm

1 stop18h 30m

San Francisco

Sat 3/14

2:35 pm-2:05 pm

1 stop15h 30m

$681

TriesteSan Francisco

TRS - SFO

TRSSFO

Trieste Ronchi dei Legionari

Sat 3/7

6:25 am-9:20 pm

2 stops23h 55m

San Francisco

Sat 3/14

2:35 pm-2:05 pm

1 stop15h 30m

$687

TriesteSan Francisco

TRS - SFO

TRSSFO

Trieste Ronchi dei Legionari

Fri 3/6

6:25 am-8:10 pm

1 stop22h 45m

San Francisco

Fri 3/13

1:50 pm-2:05 pm

2 stops16h 15m

$718

TriesteSan Francisco

TRS - SFO

TRSSFO

Trieste Ronchi dei Legionari

Fri 3/6

6:25 am-7:19 pm

2 stops21h 54m

San Francisco

Fri 3/13

1:50 pm-2:05 pm

2 stops16h 15m

$724

TriesteSan Francisco

TRS - SFO

TRSSFO

Trieste Ronchi dei Legionari

Sat 3/7

6:25 am-9:20 pm

2 stops23h 55m

San Francisco

Sat 3/14

1:50 pm-2:05 pm

2 stops16h 15m

$728

TriesteSan Francisco

TRS - SFO

TRSSFO

Trieste Ronchi dei Legionari

Fri 3/6

6:25 am-12:40 pm

1 stop15h 15m

San Francisco

Fri 3/13

3:40 pm-2:05 pm

1 stop14h 25m

$742

TriesteSan Francisco

TRS - SFO

TRSSFO

Trieste Ronchi dei Legionari

Mon 3/2

2:40 pm-1:20 pm

2 stops31h 40m

San Francisco

Mon 3/9

8:30 am-2:00 pm

2 stops21h 30m

$746

TriesteSan Francisco

TRS - SFO

TRSSFO

Trieste Ronchi dei Legionari

Fri 3/6

7:15 pm-2:45 pm

3 stops28h 30m

San Francisco

Fri 3/13

10:40 pm-2:05 pm

2 stops31h 25m

$960

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Trieste to San Francisco

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 is the typical price of a round-trip flight between Trieste and San Francisco?

Can stopping save me money on Trieste to San Francisco flights?

You could potentially save up to 70% on your flight if you consider stops on a Trieste to San Francisco flight.

When to book flights from Trieste to San Francisco

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

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

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

Fastest flight time

48h 18m

Direct flights

None
The fastest flight from Trieste to San Francisco takes 48h 18m
There are no direct flights from Trieste to San Francisco. There are no popular flight routes from Trieste to San Francisco.
Search flight deals

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

    A flight from Trieste Ronchi dei Legionari to San Francisco will travel around 6057.3 mi. A reasonable flight in good conditions will take 48h 18m.

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

    Prices for flights from Trieste Ronchi dei Legionari Airport to San Francisco Airport were last updated today.

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

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

  • What documentation or ID do you need to fly to San Francisco Airport?

    The required travel and health documents for your San Francisco Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at San Francisco Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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

Best airlines flying from Trieste to San Francisco

Compare and see reviews for airlines that fly from Trieste to San Francisco with momondo
Airline
Rating
Free Cancellation
Price
LufthansaPriceFrom $653Free CancellationRating
6.8
7,744 reviews
Search Lufthansa flights

Traveling to a place near San Francisco?

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Turlock

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Trieste to San Francisco. Millions of users trust and use momondo every year so you are in good hands.

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

All flight searches from Trieste to San Francisco on momondo can be filtered to show those which offer flexible booking policies.

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

momondo helps you find the best flight between Trieste and San Francisco by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

If you are not ready to book a flight from Trieste to San Francisco now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to San Francisco and let you know when they change.

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