Ontario to Rome ONT → FCO
Ontario International Airport (ONT) → Leonardo da Vinci-Fiumicino Airport (FCO)
The cheapest return found recently is $1,031 with Air Canada, 11 Nov – 14 Nov, found yesterday.
Return
The cheapest return fare on each of 7 departure dates is usually $862 to $906.
Cheapest return found recently
$1,031
11 Nov – 14 Nov · Air Canada
Ontario International Airport (ONT) → Leonardo da Vinci-Fiumicino Airport (FCO)
Leaves 6:00 a.m. · Return leaves 5:55 a.m. · 36 h 15 min of travel, both ways together
out 2 stops, back 1 stop
found yesterday
Cheapest nonstop return
None seen yet.
Found recently, and the cheapest we hold
$1,031 11 Nov – 14 Novfound yesterdaySee prices for these dates
$759 16 Feb 2027 – 16 Mar 2027found 4 days agoSee prices for these dates
What have prices looked like?
Over 25 days, 24 Sept to 18 Oct, the cheapest return we saw each day was $676 to $812.
At $1,031, the cheapest return found recently is above that range.
25 days is a short history, so treat this range as an early guide.
Those were the prices on those days, not today's.
Is this a good return price?
Compared with the cheapest return fare on each of 7 departure dates from 22 Oct to 7 May 2027, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.
Could nearby dates be cheaper?
We hold no other 3-night return fares leaving within 3 days of 11 Nov to compare.
Every date we hold
7 fares on 7 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 22 Oct – 4 Nov | $847 | United Airlines | Ontario International Airport (ONT) → Leonardo da Vinci-Fiumicino Airport (FCO) | out 1 stop, back 1 stop | found 4 days ago | See prices for these dates |
| 11 Nov – 14 Nov | $1,031 | Air Canada | Ontario International Airport (ONT) → Leonardo da Vinci-Fiumicino Airport (FCO) | out 2 stops, back 1 stop | found yesterday | See prices for these dates |
| 5 Jan 2027 – 15 Jan 2027 | $893 | United Airlines | Ontario International Airport (ONT) → Leonardo da Vinci-Fiumicino Airport (FCO) | out 2 stops, back 1 stop | found 3 days ago | See prices for these dates |
| 16 Feb 2027 – 16 Mar 2027 | $759 | United Airlines | Ontario International Airport (ONT) → Leonardo da Vinci-Fiumicino Airport (FCO) | out 2 stops, back 2 stops | found 4 days ago | See prices for these dates |
| 11 Apr 2027 – 18 Apr 2027 | $876 | United Airlines | Ontario International Airport (ONT) → Leonardo da Vinci-Fiumicino Airport (FCO) | out 1 stop, back 1 stop | found 4 days ago | See prices for these dates |
| 12 Apr 2027 – 18 Apr 2027 | $900 | United Airlines | Ontario International Airport (ONT) → Leonardo da Vinci-Fiumicino Airport (FCO) | out 1 stop, back 1 stop | found 4 days ago | See prices for these dates |
| 7 May 2027 – 16 May 2027 | $912 | Alaska Airlines | Ontario International Airport (ONT) → Leonardo da Vinci-Fiumicino Airport (FCO) | out 1 stop, back 1 stop | found 4 days ago | See prices for these dates |
Which month looks cheapest?
February 2027 is the cheapest month — from $759.
Airlines on the cheapest dates: United Airlines, Air Canada, Alaska Airlines.
Premium cabin fares from Ontario to Rome
We hold no premium economy, business or first-class fares for this route: we collect them for the busiest routes, and this one is not among them yet.
Today's prices for 11 Nov – 14 Nov in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Ontario to Rome?
Return
Fares 90 to 179 days before departure were typically 12% lower than 0 to 6 days before departure.
From the cheapest return each day between 24 Sept and 18 Oct (25 days), grouped by how many days ahead the flight left; one adult in economy.
Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.
Prices reflect recent searches — current fares may differ.
See these ranges as a table
| Booked ahead by | Typical fare | Cheapest day | Above the cheapest | Days of prices |
|---|---|---|---|---|
| 0–6 days | $866 | $847 | +14% | 16 |
| 7–13 days | $900 | $847 | +18% | 13 |
| 14–29 days | $797 | $676 | +5% | 21 |
| 30–59 days | $765 | $676 | +0% | 25 |
| 60–89 days | $893 | $812 | +17% | 25 |
| 90–179 days | $762 | $728 | Cheapest seen | 15 |
| 180+ days | $881 | $776 | +16% | 22 |
Could a nearby airport be cheaper?
A different airport at either end can change the fare — sometimes a lot.
Return
Los Angeles → Rome
56 km from Ontario
$769
$262 less than flying from Ontario
11 Nov – 14 Nov · LAX → FCO · out 2 stops, back 2 stops
found yesterday
Long Beach → Rome
60 km from Ontario
$1,210
$179 more than flying from Ontario
12 Apr 2027 – 18 Apr 2027 · LGB → FCO · out 1 stop, back 1 stop
found 4 days ago
Cheapest recent price on each route — round trip, per traveler in Economy. Distances are in a straight line.
One-way
Los Angeles → Rome
56 km from Ontario
$322
15 Jan 2027 · LAX → FCO · stops unknown
found 2 days ago
Cheapest recent price on each route — one way, per traveler in Economy. Distances are in a straight line.
Live price for these dates
The cheapest return found recently is for 11 Nov – 14 Nov. A live search on this page shows what those dates cost now, for one adult in economy.
Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work