How old is this price?

It is the cheapest fare we saw for that date. We look again at least once a day for the routes people search, and stop showing a price two days after we last saw it, so a price here can be up to four days old — the date beside it says when that was. The seller's page shows the price right now.

How does a2bflight rank results?

By price and duration only; commission never enters the order. Cheapest means cheapest among what the store holds for this corridor. A click that books may earn a2bflight a commission from the seller; the price you see is the seller's own.

cached prices · United States fares · USD

Flights from San Francisco (SFO) to Rome (FCO)

The cheapest one-way fare from San Francisco to Rome we have seen is $355 USD, departing Oct 14 (found Sep 23): Alaska Airlines AS 1867, 3 stops, 29h52m.

Cheapest seen · One wayfound Sep 23

$355 USD

Alaska Airlines AS 1867 · Oct 14 · 3 stops · 29h52m

Continue on the seller's site — $355

a2bflight may earn a commission from the seller if you book after this click; the price you see is the seller's and does not change. How we rank, what we keep.

Round trip: search live prices →

See more dates →

Prices are the cached fare only; baggage and fare rules are shown by the seller.

about this route

San Francisco to Rome in numbers

By month, Oct 2026 is the cheapest we hold at $355 USD and Sep 2026 the most expensive at $602 USD — a spread of 70%.

Nonstop fares are held for 5 of the 5 departure dates seen; carriers seen: Alaska Airlines, ITA Airways, JetBlue, Frontier, United, WestJet.

SFO serves San Francisco, United States; FCO serves Rome, Italy.

Rome runs 9 hours ahead of San Francisco.

by month

Cheapest by month

Sep 2026
$602 USD
checked Sep 26
Oct 2026
$355 USD
checked Sep 26
Nov 2026
$378 USD
checked Sep 26
Dec 2026
$495 USD
checked Sep 26

by date

Cheapest one-way by date

10 rows held, cheapest first — the cheapest nonstop and the cheapest with stops seen for each departure date.

Oct 14 · 09:03 SFO
AS18673 stops · 29h52m
found Sep 23 · baggage and fare rules are shown by the seller — this price is the cached fare only
$355 USD
Continue on the seller's site — $355
a2bflight may earn a commission from the seller if you book after this click; the price you see is the seller's and does not change. How we rank, what we keep.
Oct 21 · 22:14 SFO
F914482 stops · 31h16m
found Sep 23 · baggage and fare rules are shown by the seller — this price is the cached fare only
$373 USD
Continue on the seller's site — $373
a2bflight may earn a commission from the seller if you book after this click; the price you see is the seller's and does not change. How we rank, what we keep.
Nov 26 · 16:40 SFO
WS15013 stops · 46h15m
found Sep 21 · baggage and fare rules are shown by the seller — this price is the cached fare only
$378 USD
Continue on the seller's site — $378
a2bflight may earn a commission from the seller if you book after this click; the price you see is the seller's and does not change. How we rank, what we keep.
Oct 21 · 15:15 SFO
AZ641Nonstop · 12h00m
found Sep 23 · baggage and fare rules are shown by the seller — this price is the cached fare only
$598 USD
Continue on the seller's site — $598
a2bflight may earn a commission from the seller if you book after this click; the price you see is the seller's and does not change. How we rank, what we keep.
Sep 27 · 20:29 SFO
B6161 stop · 33h01m
found Sep 21 · baggage and fare rules are shown by the seller — this price is the cached fare only
$602 USD
Continue on the seller's site — $602
a2bflight may earn a commission from the seller if you book after this click; the price you see is the seller's and does not change. How we rank, what we keep.
Oct 14 · 15:15 SFO
AZ641Nonstop · 12h00m
found Sep 23 · baggage and fare rules are shown by the seller — this price is the cached fare only
$612 USD
Continue on the seller's site — $612
a2bflight may earn a commission from the seller if you book after this click; the price you see is the seller's and does not change. How we rank, what we keep.
Sep 26 · 10:24 SFO
B65782 stops · 43h06m
found Sep 25 · baggage and fare rules are shown by the seller — this price is the cached fare only
$639 USD
Continue on the seller's site — $639
a2bflight may earn a commission from the seller if you book after this click; the price you see is the seller's and does not change. How we rank, what we keep.
Nov 26 · 15:05 SFO
AZ641Nonstop · 12h10m
found Sep 21 · baggage and fare rules are shown by the seller — this price is the cached fare only
$666 USD
Continue on the seller's site — $666
a2bflight may earn a commission from the seller if you book after this click; the price you see is the seller's and does not change. How we rank, what we keep.
Sep 26 · 16:50 SFO
UA507Nonstop · 11h50m
found Sep 25 · baggage and fare rules are shown by the seller — this price is the cached fare only
$3,320 USD
Continue on the seller's site — $3,320
a2bflight may earn a commission from the seller if you book after this click; the price you see is the seller's and does not change. How we rank, what we keep.
Sep 27 · 16:50 SFO
UA507Nonstop · 11h50m
found Sep 21 · baggage and fare rules are shown by the seller — this price is the cached fare only
$3,414 USD
Continue on the seller's site — $3,414
a2bflight may earn a commission from the seller if you book after this click; the price you see is the seller's and does not change. How we rank, what we keep.

carriers

Carriers seen on this corridor

Alaska Airlines
ITA Airways
JetBlue
Frontier
United
WestJet

Marketing carriers; the operating airline is shown by the seller.

questions

Questions

What is the cheapest fare from San Francisco to Rome?: The cheapest one-way fare from San Francisco to Rome we have seen is $355 USD, departing Oct 14 (found Sep 23): Alaska Airlines AS 1867, 3 stops, 29h52m.
Is there a nonstop flight from San Francisco to Rome?: Nonstop fares are held for 5 of the 5 departure dates seen; carriers seen: Alaska Airlines, ITA Airways, JetBlue, Frontier, United, WestJet.
Which month is cheapest to fly from San Francisco to Rome?: By month, Oct 2026 is the cheapest we hold at $355 USD and Sep 2026 the most expensive at $602 USD — a spread of 70%.
How old is this price?: It is the cheapest fare we saw for that date. We look again at least once a day for the routes people search, and stop showing a price two days after we last saw it, so a price here can be up to four days old — the date beside it says when that was. The seller's page shows the price right now.
How does a2bflight rank results?: By price and duration only; commission never enters the order. Cheapest means cheapest among what the store holds for this corridor. A click that books may earn a2bflight a commission from the seller; the price you see is the seller's own. See how we rank and what we keep.

more routes

Every route from San Francisco →Every route to Rome →

More from San Francisco

Other destinations with a cached fare from this origin, cheapest first.

More to Rome

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