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Cheap flights from Rome Fiumicino Airport to San Francisco from $399

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 Fiumicino Airport to San Francisco departing on 11/20. 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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Find the cheapest flights from Rome Fiumicino Airport to San Francisco

Cheap round-trip flights

Enter your travel dates to find the best prices.
TAP AIR PORTUGAL Logo
6:00 am - 2:45 pmFCO-SFO
17h 45m1 stop
TAP AIR PORTUGAL Logo
4:35 pm - 12:05 amSFO-FCO
22h 30m1 stop
$560TAP AIR PORTUGAL
Find Deal
Sat, Dec 13 - Wed, Feb 25
TAP AIR PORTUGAL Logo
6:00 am - 2:35 pmFCO-SFO
17h 35m1 stop
TAP AIR PORTUGAL Logo
4:35 pm - 12:05 amSFO-FCO
22h 30m1 stop
$563TAP AIR PORTUGAL
Find Deal
Mon, Feb 2 - Mon, Feb 9
Multiple Airlines Logo
1:10 pm - 11:58 pmFCO-SFO
19h 48m1 stop
Multiple Airlines Logo
3:28 pm - 7:10 pmSFO-FCO
18h 42m1 stop
$565Multiple Airlines
Find Deal
Tue, Nov 4 - Sat, Nov 8
Multiple Airlines Logo
4:40 pm - 2:30 pmFCO-SFO
30h 50m1 stop
Multiple Airlines Logo
1:00 pm - 12:40 pmSFO-FCO
14h 40m1 stop
$578Multiple Airlines
Find Deal
Tue, Nov 11 - Tue, Nov 18
United Airlines Logo
7:05 am - 12:40 pmFCO-SFO
14h 35m1 stop
United Airlines Logo
7:00 am - 7:45 amSFO-FCO
15h 45m1 stop
$620United Airlines
Find Deal
Thu, Nov 13 - Fri, Nov 28
United Airlines Logo
7:05 am - 12:40 pmFCO-SFO
14h 35m1 stop
United Airlines Logo
6:00 am - 10:55 amSFO-FCO
19h 55m2 stops
$622United Airlines
Find Deal
Mon, Nov 10 - Tue, Nov 18
British Airways Logo
11:00 am - 8:56 pmFCO-SFO
18h 56m1 stop
British Airways Logo
5:30 pm - 5:50 pmSFO-FCO
15h 20m1 stop
$624British Airways
Find Deal
Sun, Nov 23 - Sun, Nov 30
British Airways Logo
8:30 pm - 3:00 pmFCO-SFO
27h 30m1 stop
British Airways Logo
8:40 pm - 2:55 pmSFO-FCO
33h 15m1 stop
$629British Airways
Find Deal
Sat, Nov 15 - Thu, Nov 27
ITA Airways Logo
9:10 am - 6:47 pmFCO-SFO
18h 37m1 stop
ITA Airways Logo
9:10 am - 12:20 pmSFO-FCO
18h 10m1 stop
$640ITA Airways
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Wed, Dec 10 - Wed, Dec 17
ITA Airways Logo
9:10 am - 2:05 pmFCO-SFO
12h 55mnonstop
ITA Airways Logo
6:30 am - 7:25 amSFO-FCO
15h 55m1 stop
$645ITA Airways
Find Deal
Thu, Mar 26 - Wed, Apr 15

ITA Airways flights from Rome Fiumicino Airport to San Francisco

Our best ITA Airways deals on Rome Fiumicino Airport to San Francisco flight tickets
ITA Airways
Oct 17
FCO9:20 amRome Fiumicino
13h 05m
SFO1:25 pmSan Francisco
Oct 30
SFO4:05 pmSan Francisco
12h 10m
FCO12:15 pmRome Fiumicino
$632
Find similar
ITA Airways
Oct 17
FCO9:30 amRome Fiumicino
18h 35m
1 stop
SFO7:05 pmSan Francisco
Oct 30
SFO4:05 pmSan Francisco
12h 10m
FCO12:15 pmRome Fiumicino
$635
Find similar
ITA Airways
Dec 10
FCO9:10 amRome Fiumicino
18h 37m
1 stop
SFO6:47 pmSan Francisco
Dec 17
SFO9:10 amSan Francisco
18h 10m
1 stop
FCO12:20 pmRome Fiumicino
$640
Find similar

TAP AIR PORTUGAL flights from Rome Fiumicino Airport to San Francisco

Our best TAP AIR PORTUGAL deals on Rome Fiumicino Airport to San Francisco flight tickets
TAP AIR PORTUGAL
Dec 13
FCO6:00 amRome Fiumicino
17h 45m
1 stop
SFO2:45 pmSan Francisco
Feb 25
SFO4:35 pmSan Francisco
22h 30m
1 stop
FCO12:05 amRome Fiumicino
$560
Find similar
TAP AIR PORTUGAL
Feb 2
FCO6:00 amRome Fiumicino
17h 35m
1 stop
SFO2:35 pmSan Francisco
Feb 9
SFO4:35 pmSan Francisco
22h 30m
1 stop
FCO12:05 amRome Fiumicino
$563
Find similar
TAP AIR PORTUGAL
Dec 12
FCO7:35 pmRome Fiumicino
28h 10m
1 stop
SFO2:45 pmSan Francisco
Dec 27
SFO4:35 pmSan Francisco
22h 30m
1 stop
FCO12:05 amRome Fiumicino
$580
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Rome Fiumicino Airport 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 October 14, 2025.
Use the filters below to find and compare flights from Rome Fiumicino Airport to San Francisco that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

RomeSan Francisco

FCO - SFO

FCOSFO

Rome Fiumicino

Sat 12/13

6:00 am-2:45 pm

1 stop17h 45m

San Francisco

Wed 2/25

4:35 pm-12:05 am

1 stop22h 30m

$560

RomeSan Francisco

FCO - SFO

FCOSFO

Rome Fiumicino

Mon 2/2

6:00 am-2:35 pm

1 stop17h 35m

San Francisco

Mon 2/9

4:35 pm-12:05 am

1 stop22h 30m

$563

RomeSan Francisco

FCO - SFO

FCOSFO

Rome Fiumicino

Tue 11/4

1:10 pm-11:58 pm

1 stop19h 48m

San Francisco

Sat 11/8

3:28 pm-7:10 pm

1 stop18h 42m

$565

RomeSan Francisco

FCO - SFO

FCOSFO

Rome Fiumicino

Tue 11/11

4:40 pm-2:30 pm

1 stop30h 50m

San Francisco

Tue 11/18

1:00 pm-12:40 pm

1 stop14h 40m

$578

RomeSan Francisco

FCO - SFO

FCOSFO

Rome Fiumicino

Thu 11/13

7:05 am-12:40 pm

1 stop14h 35m

San Francisco

Fri 11/28

7:00 am-7:45 am

1 stop15h 45m

$620

RomeSan Francisco

FCO - SFO

FCOSFO

Rome Fiumicino

Mon 11/10

7:05 am-12:40 pm

1 stop14h 35m

San Francisco

Tue 11/18

6:00 am-10:55 am

2 stops19h 55m

$622

RomeSan Francisco

FCO - SFO

FCOSFO

Rome Fiumicino

Sun 11/23

11:00 am-8:56 pm

1 stop18h 56m

San Francisco

Sun 11/30

5:30 pm-5:50 pm

1 stop15h 20m

$624

RomeSan Francisco

FCO - SFO

FCOSFO

Rome Fiumicino

Sat 11/15

8:30 pm-3:00 pm

1 stop27h 30m

San Francisco

Thu 11/27

8:40 pm-2:55 pm

1 stop33h 15m

$629

RomeSan Francisco

FCO - SFO

FCOSFO

Rome Fiumicino

Wed 12/10

9:10 am-6:47 pm

1 stop18h 37m

San Francisco

Wed 12/17

9:10 am-12:20 pm

1 stop18h 10m

$640

RomeSan Francisco

FCO - SFO

FCOSFO

Rome Fiumicino

Thu 3/26

9:10 am-2:05 pm

Nonstop12h 55m

San Francisco

Wed 4/15

6:30 am-7:25 am

1 stop15h 55m

$645

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to San Francisco from

How to get the cheapest flight ticket from Rome Fiumicino Airport 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 cheapest month to fly to San Francisco?

If you aren’t able to travel to San Francisco during the month of May, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $635.

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

The cheapest day to depart from Rome Fiumicino Airport 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 Fiumicino Airport to San Francisco flights are usually those with departure times in the evening. Our users have found flights to San Francisco in the evening for as low as $671. Flights in the afternoon are often more expensive with an average ticket price of $869.

What is the cheapest Rome Fiumicino to San Francisco flight route?

Fly from Rome Fiumicino to San Francisco for the best Rome Fiumicino - 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 Fiumicino Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to San Francisco for around $723 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 Fiumicino Airport for as low as $654 on momondo.

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

There are 3 cabin classes available to choose from on Rome Fiumicino 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 Fiumicino Airport to San Francisco flight prices changed over time?

As of October 2025, prices for Rome Fiumicino Airport to San Francisco flights are approximately 1% more expensive when compared to flights at the same time last year.

When to book flights from Rome Fiumicino Airport to San Francisco

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

Cheap Rome Fiumicino Airport to San Francisco (FCO to SFO) flight deals and tips

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

Best Price Found

$696

Fastest flight time

12h 35m

Direct flights

Mon, Tue, Wed, Fri and Sun

Airports in San Francisco

1 airport
The best one-way flight to San Francisco from Rome Fiumicino Airport in the past 72 hours is $696. The best round-trip flight deal from Rome Fiumicino Airport to San Francisco found on momondo in the last 72 hours is $711.
The fastest flight from Rome Fiumicino Airport to San Francisco takes 12h 35m
Direct flights go from Rome Fiumicino Airport to San Francisco on Monday, Tuesday, Wednesday, Friday and Sunday. There are no airlines offering direct flights.
There is 1 airport near San Francisco: San Francisco (SFO)
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  • How far is Rome Fiumicino to San Francisco by plane?

    San Francisco is 6237.0 mi away from Rome Fiumicino. Typically, this will take 12h 55m by plane in normal conditions.

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

    Prices for flights from Rome Fiumicino Airport to San Francisco Airport are updated daily.

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

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Rome Fiumicino 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 plane model from Rome Fiumicino Airport to San Francisco?

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

Best airlines flying from Rome Fiumicino Airport to San Francisco

Compare and see reviews for airlines that fly from Rome Fiumicino Airport to San Francisco with momondo
Airline
Rating
Free Cancellation
Price
TAP AIR PORTUGALPriceFrom $426Free CancellationRating
7.1
2,015 reviews
Search TAP AIR PORTUGAL flights
United AirlinesPriceFrom $565Free CancellationRating
7.4
8,975 reviews
Search United Airlines flights
ITA AirwaysPriceFrom $575Free CancellationRating
6.7
1,065 reviews
Search ITA Airways flights
LufthansaPriceFrom $615Free CancellationRating
6.8
7,485 reviews
Search Lufthansa flights
British AirwaysPriceFrom $624Free CancellationRating
6.7
7,454 reviews
Search British Airways flights

  • United Airlines Flights From Rome Fiumicino Airport to San Francisco

    The lowest priced United Airlines flight from Rome Fiumicino Airport to San Francisco from the last 72 hours was $565. Generally, United Airlines has 7 flights on this route every week with an average price of $766. United Airlines is rated 7.4/10 by our users.

  • Lufthansa Flights From Rome Fiumicino Airport to San Francisco

    Across 7,485 Lufthansa reviews on momondo, the average score is 6.8/10. Lufthansa flies from Rome Fiumicino Airport to San Francisco about 7 times each week, with ticket deals ranging from $615 to $766. Price data is based on momondo searches in the last 72 hours.

Traveling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Santa Cruz
Carmel-by-the-Sea
Modesto
Sonoma
Bodega Bay
Calistoga
Hayward
Roseville
Big Sur
Santa Clara
Fremont
Daly City
Berkeley
Walnut Creek
Half Moon Bay
Vallejo
Salinas
Redwood City
Turlock
South San Francisco

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to San Francisco from Rome.

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

momondo does allow users to show only those flights to San Francisco from Rome which offer a flexible booking policy as well as other useful filters and features.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight 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?

Price alerts on flights to San Francisco from Rome are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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