ONT - FCO
$333 Find Cheap Flights from Ontario to Rome - Compare and Save
This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to Rome departing on 1/25. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
Everything you should know
Cheapest round-trip
$746
Typical prices: $676-$1,031
United Airlines
Sun 11/11Sun 11/25
ONT - FCO • 1 stop
Cheapest one-way
$333
Typical prices: $493-$679
British Airways
Thu 1/25
ONT - FCO • 2 stops
Flight Deals
Cheap Flights from Ontario to Rome (ONT-FCO)
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Rome that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.
Recent round-trip flight deals from Ontario to Rome
Wed, Nov 11 - Wed, Nov 25
1:29 pm - 11:55 amONT Ontario-FCO Rome Fiumicino
13h 26m1 stop Denver Intl
1:15 pm - 3:59 pmFCO Rome Fiumicino-ONT Ontario
35h 44m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl
$746United Airlines
Wed, Nov 11 - Wed, Nov 25
5:00 am - 11:55 amONT Ontario-FCO Rome Fiumicino
21h 55m1 stop Denver Intl
1:15 pm - 3:59 pmFCO Rome Fiumicino-ONT Ontario
35h 44m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl
$746United Airlines
Wed, Nov 11 - Wed, Nov 25
5:00 am - 8:55 amONT Ontario-FCO Rome Fiumicino
18h 55m2 stops Denver Intl Montreal Pierre Elliott Trudeau Intl
1:15 pm - 3:59 pmFCO Rome Fiumicino-ONT Ontario
35h 44m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl
$749Multiple Airlines
Wed, Nov 11 - Wed, Nov 25
5:00 am - 8:55 amONT Ontario-FCO Rome Fiumicino
18h 55m2 stops Denver Intl Montreal Pierre Elliott Trudeau Intl
1:15 pm - 3:59 pmFCO Rome Fiumicino-ONT Ontario
35h 44m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl
$749United Airlines
Sat, Feb 13 - Fri, Feb 19
6:35 pm - 8:55 amONT Ontario-FCO Rome Fiumicino
29h 20m2 stops San Francisco Montreal Pierre Elliott Trudeau Intl
7:05 am - 9:39 pmFCO Rome Fiumicino-ONT Ontario
23h 34m2 stops Frankfurt am Main Houston George Bush Intcntl
$750Multiple Airlines
Sun, Oct 25 - Tue, Nov 10
7:07 am - 8:15 amONT Ontario-FCO Rome Fiumicino
17h 08m1 stop Atlanta Hartsfield-Jackson
10:25 am - 8:54 pmFCO Rome Fiumicino-ONT Ontario
19h 29m1 stop Atlanta Hartsfield-Jackson
$755Delta
Sun, Oct 25 - Tue, Nov 10
9:25 am - 6:00 pmONT Ontario-FCO Rome Fiumicino
24h 35m2 stops San Francisco Munich Franz Josef Strauss
7:05 am - 6:01 pmFCO Rome Fiumicino-ONT Ontario
19h 56m2 stops Frankfurt am Main San Francisco
$755Lufthansa
Sun, Oct 25 - Tue, Nov 10
7:07 am - 8:15 amONT Ontario-FCO Rome Fiumicino
17h 08m1 stop Atlanta Hartsfield-Jackson
10:25 am - 8:54 pmFCO Rome Fiumicino-ONT Ontario
19h 29m1 stop Atlanta Hartsfield-Jackson
$756Delta
Mon, Oct 26 - Tue, Nov 10
7:07 am - 8:15 amONT Ontario-FCO Rome Fiumicino
17h 08m1 stop Atlanta Hartsfield-Jackson
10:25 am - 8:54 pmFCO Rome Fiumicino-ONT Ontario
19h 29m1 stop Atlanta Hartsfield-Jackson
$756Delta
Sun, Oct 25 - Tue, Nov 10
1:32 pm - 11:55 amONT Ontario-FCO Rome Fiumicino
14h 23m1 stop Denver Intl
1:55 pm - 8:51 pmFCO Rome Fiumicino-ONT Ontario
15h 56m1 stop Denver Intl
$756United Airlines
Recent one-way flight deals from Ontario to Rome
Mon, Jan 25
4:19 pm - 7:35 pmONT Ontario-FCO Rome Fiumicino
18h 16m2 stops Phoenix Sky Harbor Intl London Heathrow
$333British Airways
Sun, Jan 17
1:24 pm - 9:55 pmONT Ontario-FCO Rome Fiumicino
23h 31m2 stops Phoenix Sky Harbor Intl London Heathrow
$334British Airways
Sun, Jan 17
1:24 pm - 9:55 pmONT Ontario-FCO Rome Fiumicino
23h 31m2 stops Phoenix Sky Harbor Intl London Heathrow
$334British Airways
Mon, Mar 1
4:25 pm - 7:35 pmONT Ontario-FCO Rome Fiumicino
18h 10m2 stops Phoenix Sky Harbor Intl London Heathrow
$337British Airways
Sun, Jan 17
6:37 pm - 8:30 amONT Ontario-FCO Rome Fiumicino
28h 53m2 stops San Francisco Washington, D.C. Dulles Intl
$346United Airlines
Sun, Jan 17
5:00 am - 8:30 amONT Ontario-FCO Rome Fiumicino
18h 30m2 stops Denver Intl Washington, D.C. Dulles Intl
$346United Airlines
Mon, Jan 25
12:00 pm - 11:20 amONT Ontario-FCO Rome Fiumicino
14h 20m1 stop Atlanta Hartsfield-Jackson
$346Delta
Sun, Feb 7
7:00 am - 11:20 amONT Ontario-FCO Rome Fiumicino
19h 20m1 stop Atlanta Hartsfield-Jackson
$346Delta
Sun, Jan 17
6:37 pm - 8:30 amONT Ontario-FCO Rome Fiumicino
28h 53m2 stops San Francisco Washington, D.C. Dulles Intl
$346United Airlines
Mon, Nov 30
6:00 am - 8:15 amONT Ontario-FCO Rome Fiumicino
17h 15m2 stops Salt Lake City Atlanta Hartsfield-Jackson
$549Delta
Recent last minute flight deals from Ontario to Rome
Tue, Oct 13 - Fri, Nov 20
1:22 pm - 12:20 pmONT Ontario-FCO Rome Fiumicino
13h 58m1 stop Denver Intl
1:55 pm - 8:51 pmFCO Rome Fiumicino-ONT Ontario
15h 56m1 stop Denver Intl
$766United Airlines
Tue, Oct 13 - Tue, Nov 17
1:22 pm - 12:20 pmONT Ontario-FCO Rome Fiumicino
13h 58m1 stop Denver Intl
1:55 pm - 8:51 pmFCO Rome Fiumicino-ONT Ontario
15h 56m1 stop Denver Intl
$766United Airlines
Tue, Oct 13 - Wed, Nov 18
1:22 pm - 12:20 pmONT Ontario-FCO Rome Fiumicino
13h 58m1 stop Denver Intl
1:55 pm - 8:51 pmFCO Rome Fiumicino-ONT Ontario
15h 56m1 stop Denver Intl
$766United Airlines
Tue, Oct 13 - Thu, Nov 19
1:22 pm - 12:20 pmONT Ontario-FCO Rome Fiumicino
13h 58m1 stop Denver Intl
1:55 pm - 8:51 pmFCO Rome Fiumicino-ONT Ontario
15h 56m1 stop Denver Intl
$766United Airlines
Tue, Oct 13 - Wed, Nov 11
11:59 pm - 12:05 pmONT Ontario-FCO Rome Fiumicino
27h 06m1 stop Dallas/Fort Worth
8:20 am - 11:46 pmFCO Rome Fiumicino-ONT Ontario
24h 26m2 stops London Heathrow Dallas/Fort Worth
$791British Airways
Tue, Oct 13 - Wed, Nov 11
7:07 am - 10:50 amONT Ontario-FCO Rome Fiumicino
18h 43m1 stop Atlanta Hartsfield-Jackson
10:25 am - 8:54 pmFCO Rome Fiumicino-ONT Ontario
19h 29m1 stop Atlanta Hartsfield-Jackson
$808KLM
Wed, Oct 14 - Tue, Oct 20
10:25 am - 12:05 pmONT Ontario-FCO Rome Fiumicino
16h 40m1 stop Dallas/Fort Worth
1:10 pm - 10:40 pmFCO Rome Fiumicino-ONT Ontario
18h 30m1 stop Dallas/Fort Worth
$811British Airways
Wed, Oct 14 - Wed, Oct 21
10:25 am - 12:05 pmONT Ontario-FCO Rome Fiumicino
16h 40m1 stop Dallas/Fort Worth
1:30 pm - 10:59 pmFCO Rome Fiumicino-ONT Ontario
18h 29m1 stop Charlotte Douglas
$811British Airways
Wed, Oct 14 - Fri, Oct 23
1:24 pm - 12:20 pmONT Ontario-FCO Rome Fiumicino
13h 56m1 stop Denver Intl
3:40 pm - 10:51 pmFCO Rome Fiumicino-ONT Ontario
16h 11m1 stop San Francisco
$811United Airlines
Wed, Oct 14 - Sat, Oct 24
6:20 am - 10:10 amONT Ontario-FCO Rome Fiumicino
18h 50m1 stop Seattle/Tacoma Intl
12:20 pm - 10:43 pmFCO Rome Fiumicino-ONT Ontario
19h 23m1 stop Seattle/Tacoma Intl
$861Delta
Booking Insights
Price, demand and travel trends for Ontario to Rome Fiumicino Airport flights
Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.
Prices
Airlines
Layovers
How much is a round-trip flight from Ontario to Rome Fiumicino Airport?
This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Ontario to Rome Fiumicino Airport departing in november.
Round-trip flights from Ontario to Rome Fiumicino Airport typically range from $676 to $1,031. The lowest price found in the past 5 days was $746, on United Airlines.
What’s the most popular layover airport when flying from Ontario to Rome Fiumicino Airport?
KAYAK data for 1-stop round-trips over the past 3 months. Only counts itineraries with the same layover on both legs.Denver Intl (DEN) is the most popular layover for the Ontario to Rome Fiumicino Airport route. 30% of KAYAK users who booked 1-stop round-trips over the past 3 months connected via DEN.
What is the cheapest layover airport when flying from Ontario to Rome Fiumicino Airport?
Flights via Dallas/Fort Worth (DFW) offer the most affordable fares, with an average round-trip price of $872. Based on KAYAK data over the past 3 months.
Key details for Ontario to Rome Fiumicino Airport flights
Low season | January |
|---|---|
High season | September |
Cheapest flight | $333 |
When to book flights from Ontario to Rome
Are your dates flexible? Find out the best times to travel from Ontario to Rome based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.
Your Ontario to Rome Fiumicino Airport flight questions, answered
Find helpful answers about this route, including flight times, airports, airlines and booking tips.
Your guide to booking Ontario to Rome Fiumicino Airport flights
Get tips on when to book, when to fly and what to know before your trip.More options for your flight from Ontario to Rome
Complete your trip to Rome with a hotel stay or car rental
Information on your arrival and departure airports
Cabin class types available on flights to Rome
Cabin classes available on flights from Ontario to Rome. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.
Find direct flights to and from Ontario and Rome
Flights from domestic origins to Rome
Flights to other popular destinations
The most popular flights on KAYAK according to clicks in the last 2 weeks. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.