How often are flights from Rome to San Francisco delayed?

Historically, on average around 22% of flights between Rome and San Francisco have experienced a delay on any given week. The average delay length over the past 12 months has been 136 minutes.

What day of the week experiences the fewest flight delays on this route?

Thursday is statistically the day of the week which experiences the fewest number of delays on this flight route. Tuesday has historically seen more delays on average compared to the rest of the week.

What is the cheapest airline that flies from Rome to San Francisco?

TAP AIR PORTUGAL, British Airways, and Turkish Airlines are the most popular carriers operating from Rome to San Francisco

Which layover airport has the shortest connection time from Rome to San Francisco?

London (LHR) has the shortest average layover time for this route: 1h 15m.

Which layover airport has the shortest travel time from Rome to San Francisco?

Flights connecting via Frankfurt am Main (FRA) have the shortest average one-way travel time: 15h 10m.

Which layover airport offers the lowest fares from Rome to San Francisco?

Flights via Frankfurt am Main (FRA) offer the lowest average round-trip price of $472.

Which airline has the best punctuality record on Rome to San Francisco flights?

According to our data, United Airlines have had the least number of delays on this route over the last 12 months; with about 21% of their flights experiencing any sort of delay.

Which airport is the most popular layover for flights between Rome and San Francisco?

Frankfurt am Main (FRA) was the most common stop: 60% of momondo users choosing 1-stop flights on this route connected there.

What airlines fly to San Francisco?

United Airlines, ITA Airways and Lufthansa are the top three most popular airlines that fly to San Francisco from Rome according to our data. United Airlines is the first choice among our users, with 40% of people opting to fly with this airline when traveling to San Francisco. Keep in mind that there are 5 different airlines that fly to San Francisco on a routine basis, so you have a few additional options to choose from.

What is the most punctual flight time for Rome to San Francisco flights?

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights in the morning have, in the past, seen delays more frequently in comparison.

When did momondo last update prices for flights from Rome to San Francisco Airport?

Prices for flights from Rome to San Francisco Airport were last updated today.

How many operators does momondo search for flights from Rome to San Francisco Airport?

As of February 2026, there are 5 operators available to choose from for flights from Rome to San Francisco Airport.

How old do you have to be to fly from Rome 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 Rome to San Francisco Airport.

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

The travel and health documents required for your trip to San Francisco Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at San Francisco Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$512 Cheap Flights from Rome to San Francisco in 2026

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One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

4:40 pm - 2:30 pm

FCO

SFO

30h 50m

1 stop

4:35 pm - 6:45 pm

SFO

FCO

17h 10m

1 stop

$570TAP AIR PORTUGAL

Tue, Feb 10 - Mon, Feb 16

7:35 pm - 2:45 pm

FCO

SFO

28h 10m

1 stop

7:10 pm - 12:05 am

SFO

FCO

19h 55m

1 stop

$578TAP AIR PORTUGAL

Fri, Feb 13 - Fri, Feb 20

4:40 pm - 2:45 pm

FCO

SFO

31h 05m

1 stop

4:35 pm - 12:05 am

SFO

FCO

22h 30m

1 stop

$579TAP AIR PORTUGAL

Fri, Feb 6 - Mon, Feb 9

7:35 pm - 4:05 pm

FCO

SFO

29h 30m

1 stop

4:35 pm - 6:45 pm

SFO

FCO

17h 10m

1 stop

$581TAP AIR PORTUGAL

Thu, Feb 26 - Wed, Mar 4

9:10 am - 2:05 pm

FCO

SFO

12h 55mnonstop

8:49 am - 12:15 pm

SFO

FCO

18h 26m

1 stop

$583ITA Airways

Mon, Mar 16 - Tue, Mar 31

9:10 am - 1:05 pm

FCO

SFO

12h 55mnonstop

4:05 pm - 12:15 pm

SFO

FCO

12h 10mnonstop

$585ITA Airways

Thu, Mar 5 - Mon, Mar 9

9:10 am - 2:05 pm

FCO

SFO

12h 55mnonstop

10:10 am - 12:15 pm

SFO

FCO

17h 05m

1 stop

$586ITA Airways

Mon, Mar 16 - Tue, Mar 31

9:10 am - 5:05 pm

FCO

SFO

16h 55m

1 stop

4:05 pm - 12:15 pm

SFO

FCO

12h 10mnonstop

$588ITA Airways

Thu, Mar 5 - Mon, Mar 9

9:20 am - 6:38 pm

FCO

SFO

18h 18m

1 stop

3:15 pm - 12:15 pm

SFO

FCO

12h 00mnonstop

$591ITA Airways

Sat, May 2 - Sat, May 9

3:30 pm - 2:30 pm

CIA

SFO

32h 00m

3 stops

2:55 pm - 9:00 pm

SFO

CIA

22h 05m

2 stops

$960Multiple Airlines

Tue, Mar 3 - Tue, Mar 24

Delta flights from Rome to San Francisco

Our best Delta deals on Rome to San Francisco flight tickets

Delta

Apr 24

FCO6:30 amRome Fiumicino

14h 15m

1 stop

SFO11:45 amSan Francisco

May 3

SFO8:35 pmSan Francisco

26h 20m

1 stop

FCO7:55 amRome Fiumicino

$630

Delta

May 20

FCO10:35 amRome Fiumicino

22h 26m

2 stops

SFO12:01 amSan Francisco

May 31

SFO6:05 amSan Francisco

19h 05m

1 stop

FCO10:10 amRome Fiumicino

$653

Delta

Feb 11

FCO6:10 amRome Fiumicino

20h 33m

2 stops

SFO5:43 pmSan Francisco

Feb 15

SFO3:40 pmSan Francisco

14h 35m

1 stop

FCO3:15 pmRome Fiumicino

$887

American Airlines flights from Rome to San Francisco

Our best American Airlines deals on Rome to San Francisco flight tickets

American Airlines

Feb 26

FCO1:10 pmRome Fiumicino

18h 39m

1 stop

SFO10:49 pmSan Francisco

Mar 3

SFO6:00 amSan Francisco

18h 00m

2 stops

FCO9:00 amRome Fiumicino

$637

American Airlines

Feb 26

FCO11:10 amRome Fiumicino

20h 50m

2 stops

SFO11:00 pmSan Francisco

Mar 3

SFO6:00 amSan Francisco

18h 00m

2 stops

FCO9:00 amRome Fiumicino

$649

American Airlines

Mar 16

FCO8:50 pmRome Fiumicino

27h 10m

1 stop

SFO4:00 pmSan Francisco

Mar 31

SFO6:21 amSan Francisco

15h 44m

1 stop

FCO7:05 amRome Fiumicino

$652

Fly from

Fly to

Route

Depart

Return

Price

RomeSan Francisco

FCO - SFO

FCOSFO

Rome Fiumicino

Tue 2/10

4:40 pm-2:30 pm

1 stop30h 50m

San Francisco

Mon 2/16

4:35 pm-6:45 pm

1 stop17h 10m

$570

RomeSan Francisco

FCO - SFO

FCOSFO

Rome Fiumicino

Fri 2/13

7:35 pm-2:45 pm

1 stop28h 10m

San Francisco

Fri 2/20

7:10 pm-12:05 am

1 stop19h 55m

$578

RomeSan Francisco

FCO - SFO

FCOSFO

Rome Fiumicino

Fri 2/6

4:40 pm-2:45 pm

1 stop31h 05m

San Francisco

Mon 2/9

4:35 pm-12:05 am

1 stop22h 30m

$579

RomeSan Francisco

FCO - SFO

FCOSFO

Rome Fiumicino

Thu 2/26

7:35 pm-4:05 pm

1 stop29h 30m

San Francisco

Wed 3/4

4:35 pm-6:45 pm

1 stop17h 10m

$581

RomeSan Francisco

FCO - SFO

FCOSFO

Rome Fiumicino

Mon 3/16

9:10 am-2:05 pm

Nonstop12h 55m

San Francisco

Tue 3/31

8:49 am-12:15 pm

1 stop18h 26m

$583

RomeSan Francisco

FCO - SFO

FCOSFO

Rome Fiumicino

Thu 3/5

9:10 am-1:05 pm

Nonstop12h 55m

San Francisco

Mon 3/9

4:05 pm-12:15 pm

Nonstop12h 10m

$585

RomeSan Francisco

FCO - SFO

FCOSFO

Rome Fiumicino

Mon 3/16

9:10 am-2:05 pm

Nonstop12h 55m

San Francisco

Tue 3/31

10:10 am-12:15 pm

1 stop17h 05m

$586

RomeSan Francisco

FCO - SFO

FCOSFO

Rome Fiumicino

Thu 3/5

9:10 am-5:05 pm

1 stop16h 55m

San Francisco

Mon 3/9

4:05 pm-12:15 pm

Nonstop12h 10m

$588

RomeSan Francisco

FCO - SFO

FCOSFO

Rome Fiumicino

Sat 5/2

9:20 am-6:38 pm

1 stop18h 18m

San Francisco

Sat 5/9

3:15 pm-12:15 pm

Nonstop12h 00m

$591

RomeSan Francisco

CIA - SFO

CIASFO

Rome Ciampino

Tue 3/3

3:30 pm-2:30 pm

3 stops32h 00m

San Francisco

Tue 3/24

2:55 pm-9:00 pm

2 stops22h 05m

$960

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How to get the cheapest flight ticket from Rome 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

Prices

Airlines

Delays

Layovers

What is the cheapest month to fly to San Francisco?

If you aren’t able to travel to San Francisco during the month of February, then flying in March is also cheap. Prices for this month can be found on momondo for an average of $628.

What is the cheapest day to depart on your flight to San Francisco?

The cheapest day to depart from Rome to San Francisco is on a Monday when prices can be found for as low as $719. The most expensive day to fly to San Francisco is Sunday, with ticket prices averaging around $1,138.

What is the cheapest time of day to depart on your flight to San Francisco?

Our data shows that the cheapest Rome to San Francisco flights are usually those with departure times in the morning. Our users have found flights to San Francisco in the morning for as low as $721. Flights in the afternoon are often more expensive with an average ticket price of $873.

What is the cheapest Rome to San Francisco flight route?

Fly from Rome Fiumicino to San Francisco for the best Rome - San Francisco flight prices

How far in advance should I book a flight to San Francisco?

You are more likely to see cheaper flights to San Francisco from Rome when booking weeks ahead of your departure date. In general, you can expect to find flights to San Francisco for around $742 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Francisco from Rome for as low as $653 on momondo.

What cabin class options are available on Rome to San Francisco flights?

There are 3 cabin classes available to choose from on Rome to San Francisco flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Rome to San Francisco flight prices changed over time?

As of February 2026, prices for Rome to San Francisco flights are approximately 24% more expensive when compared to flights at the same time last year.

When to book flights from Rome to San Francisco

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

Estimated round-trip price

Cheap Rome to San Francisco (ROM to SFO) flight deals and tips

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

Best Price Found	$696
Fastest flight time	12h 45m
Direct flights	Every day
Airports in San Francisco	1 airport

The best one-way flight to San Francisco from Rome in the past 72 hours is $696. The best round-trip flight deal from Rome to San Francisco found on momondo in the last 72 hours is $628.

The fastest flight from Rome to San Francisco takes 12h 45m

Direct flights go from Rome to San Francisco every day.

There is 1 airport in San Francisco. From Rome there are direct flights to San Francisco (SFO).

Search flight deals

How far is Rome to San Francisco by plane?
A flight from Rome to San Francisco will travel around 6237.4 mi. In terms of flight time, this usually takes a little over 12h 45m.
When did momondo last update prices for flights from Rome to San Francisco Airport?
Prices for flights from Rome to San Francisco Airport were last updated today.
How many operators does momondo search for flights from Rome to San Francisco Airport?
As of February 2026, there are 5 operators available to choose from for flights from Rome to San Francisco Airport.
How old do you have to be to fly from Rome 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 Rome to San Francisco Airport.
What documentation or ID do you need to fly to San Francisco Airport?
The travel and health documents required for your trip to San Francisco Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at San Francisco Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Rome to San Francisco?
momondo data reveals that the most frequently booked plane model on the route from Rome to San Francisco is Boeing 777, representing 47.18% of all bookings. The subsequent popular models are Airbus A330-900neo at 36.62%, Boeing 747-8 at 7.39%, and Boeing 787 Dreamliner at 4.93%.
What is the most popular airline from Rome to San Francisco?
momondo data reveals that the most frequently booked airline on the route from Rome to San Francisco is ITA Airways, representing 30% of all bookings. The subsequent popular airlines are United Airlines at 22%, Condor at 12%, and British Airways at 10%.

Best airlines flying from Rome to San Francisco

Compare and see reviews for airlines that fly from Rome to San Francisco with momondo

Airline	Rating	Free Cancellation	Price
Condor	PriceFrom $435	Free Cancellation	Rating 6.4 399 reviews	Search Condor flights
United Airlines	PriceFrom $565	Free Cancellation	Rating 7.4 9,231 reviews	Search United Airlines flights
ITA Airways	PriceFrom $587	Free Cancellation	Rating 6.7 1,144 reviews	Search ITA Airways flights
British Airways	PriceFrom $624	Free Cancellation	Rating 6.7 7,711 reviews	Search British Airways flights
Lufthansa	PriceFrom $629	Free Cancellation	Rating 6.8 7,758 reviews	Search Lufthansa flights

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Fremont

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Vallejo

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Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Rome to San Francisco. momondo saves you time and could save you money on your trip.

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

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

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

momondo provides multiple filters to help you find the best flight to San Francisco from Rome. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes momondo offers price alerts on flights to San Francisco from Rome. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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Cheap flights from Rome to San Francisco from $512

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Rome to San Francisco departing on 3/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Our best Delta deals on Rome to San Francisco flight tickets

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Our best American Airlines deals on Rome to San Francisco flight tickets

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

What is the cheapest month to fly to San Francisco?

If you aren’t able to travel to San Francisco during the month of February, then flying in March is also cheap. Prices for this month can be found on momondo for an average of $628.

What is the cheapest day to depart on your flight to San Francisco?

The cheapest day to depart from Rome to San Francisco is on a Monday when prices can be found for as low as $719. The most expensive day to fly to San Francisco is Sunday, with ticket prices averaging around $1,138.

What is the cheapest time of day to depart on your flight to San Francisco?

Our data shows that the cheapest Rome to San Francisco flights are usually those with departure times in the morning. Our users have found flights to San Francisco in the morning for as low as $721. Flights in the afternoon are often more expensive with an average ticket price of $873.

What is the cheapest Rome to San Francisco flight route?

Fly from Rome Fiumicino to San Francisco for the best Rome - San Francisco flight prices

How far in advance should I book a flight to San Francisco?

What cabin class options are available on Rome to San Francisco flights?

There are 3 cabin classes available to choose from on Rome to San Francisco flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Rome to San Francisco flight prices changed over time?

As of February 2026, prices for Rome to San Francisco flights are approximately 24% more expensive when compared to flights at the same time last year.

What is the cheapest airline that flies from Rome to San Francisco?

TAP AIR PORTUGAL, British Airways, and Turkish Airlines are the most popular carriers operating from Rome to San Francisco

What airlines fly to San Francisco?

How often are flights from Rome to San Francisco delayed?

Historically, on average around 22% of flights between Rome and San Francisco have experienced a delay on any given week. The average delay length over the past 12 months has been 136 minutes.

What is the most punctual flight time for Rome to San Francisco flights?

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights in the morning have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Thursday is statistically the day of the week which experiences the fewest number of delays on this flight route. Tuesday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on Rome to San Francisco flights?

According to our data, United Airlines have had the least number of delays on this route over the last 12 months; with about 21% of their flights experiencing any sort of delay.

Which airport is the most popular layover for flights between Rome and San Francisco?

Frankfurt am Main (FRA) was the most common stop: 60% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport offers the lowest fares from Rome to San Francisco?

Flights via Frankfurt am Main (FRA) offer the lowest average round-trip price of $472.

Which layover airport has the shortest travel time from Rome to San Francisco?

Flights connecting via Frankfurt am Main (FRA) have the shortest average one-way travel time: 15h 10m.

Which layover airport has the shortest connection time from Rome to San Francisco?

London (LHR) has the shortest average layover time for this route: 1h 15m.

When to book flights from Rome to San Francisco

Cheap Rome to San Francisco (ROM to SFO) flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in San Francisco

How far is Rome to San Francisco by plane?

When did momondo last update prices for flights from Rome to San Francisco Airport?

How many operators does momondo search for flights from Rome to San Francisco Airport?

How old do you have to be to fly from Rome to San Francisco Airport?

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

What is the most popular plane model from Rome to San Francisco?

What is the most popular airline from Rome to San Francisco?

Best airlines flying from Rome to San Francisco

Compare and see reviews for airlines that fly from Rome to San Francisco with momondo

Traveling to a place near San Francisco?

Why use momondo?

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

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

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

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

An easier way to manage your San Francisco 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.

Get notified when prices go down