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Flight Deals from Ontario International Airport to Rome Fiumicino Airport from $520

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Stops

Up to 1 stop
$626
Up to 2 stops
$637

Airlines

Air Canada
$692
British Airways
$659
Brussels Airlines
$644
Delta Air Lines
$631
Lufthansa
$658
SWISS
$671
United Airlines
$626

Cabin Class

Economy
$626

Departure Airports

Ontario International Airport
$626

Arrival Airports

Rome Fiumicino Airport
$626

Layover Airports

Chicago O Hare Airport
$659
Dallas Fort Worth International Airport
$659
Denver International Airport
$626
Detroit Metropolitan Airport
$637
Frankfurt am Main Airport
$646
George Bush Intercontinental Houston Airport
$646
Hartsfield Jackson Atlanta International Airport
$631
London Heathrow Airport
$667
Montreal Trudeau Airport
$626
Munich Airport
$652
New York John F Kennedy Airport
$637
Newark Liberty Airport
$652
Paris Charles de Gaulle Airport
$649
Philadelphia International Airport
$659
Phoenix Sky Harbor International Airport
$668
Salt Lake City International Airport
$691
San Francisco International Airport
$626
Seattle Tacoma International Airport
$637
Toronto Pearson Airport
$692
Washington Dulles Airport
$689
Zürich Airport
$671

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On average save $240 per traveler
United Airlines Logo
United Airlines

05/13/25

6:00am
ONT
31h 40m
SFO
United Airlines Logo
United Airlines

05/22/25

11:30am
FCO
8h 20m
YUL
$626
Free cancellation within 83 hours of booking
United Airlines Logo
United Airlines

05/07/25

1:45pm
ONT
23h 35m
SFO
United Airlines Logo
United Airlines

05/14/25

11:30am
FCO
11h 29m
YUL
$626
Free cancellation within 83 hours of booking
United Airlines Logo
United Airlines

05/06/25

5:05am
ONT
31h 15m
DEN
United Airlines Logo
United Airlines

05/20/25

11:30am
FCO
23h 35m
YUL
$626
Free cancellation within 83 hours of booking
Delta Air Lines Logo
Delta Air Lines

04/21/25

7:00am
ONT
24h 35m
ATL
Delta Air Lines Logo
Delta Air Lines

04/29/25

11:35am
FCO
8h 59m
ATL
$631
Free cancellation within 83 hours of booking
United Airlines Logo
United Airlines

05/14/25

6:00am
ONT
31h 20m
SFO
United Airlines Logo
United Airlines

05/21/25

2:20pm
FCO
7h 40m
DEN
$631
Free cancellation within 83 hours of booking
Delta Air Lines Logo
Delta Air Lines

04/22/25

10:15pm
ONT
33h 20m
ATL
Delta Air Lines Logo
Delta Air Lines

05/01/25

9:45am
FCO
8h 58m
ATL
$631
Free cancellation within 83 hours of booking
Delta Air Lines Logo
Delta Air Lines

05/10/25

7:05pm
ONT
36h 50m
SEA
JFK
Delta Air Lines Logo
Delta Air Lines

05/21/25

9:00am
FCO
11h 32m
DTW
$637
Free cancellation within 83 hours of booking
Brussels Airlines Logo
Brussels Airlines

04/28/25

1:20pm
ONT
24h
SFO
Brussels Airlines Logo
Brussels Airlines

05/15/25

11:30am
FCO
8h 20m
YUL
$644
Free cancellation within 83 hours of booking
Brussels Airlines Logo
Brussels Airlines

05/06/25

1:20pm
ONT
23h
DEN
Brussels Airlines Logo
Brussels Airlines

05/15/25

11:30am
FCO
8h 20m
YUL
$645
Free cancellation within 83 hours of booking
United Airlines Logo
United Airlines

04/23/25

7:05am
ONT
30h 15m
SFO
United Airlines Logo
United Airlines

05/07/25

7:00am
FCO
14h 36m
FRA
IAH
$646
Free cancellation within 83 hours of booking
United Airlines Logo
United Airlines

05/12/25

6:00am
ONT
31h 20m
SFO
United Airlines Logo
United Airlines

05/21/25

10:00am
FCO
9h 30m
FRA
SFO
$646
Free cancellation within 83 hours of booking
Delta Air Lines Logo
Delta Air Lines

05/14/25

2:55pm
ONT
28h 10m
SEA
CDG
Delta Air Lines Logo
Delta Air Lines

05/23/25

10:10am
FCO
9h 50m
JFK
$649
Free cancellation within 83 hours of booking
United Airlines Logo
United Airlines

04/30/25

1:20pm
ONT
32h 35m
SFO
MUC
United Airlines Logo
United Airlines

05/14/25

11:00am
FCO
9h 49m
EWR
$652
Free cancellation within 83 hours of booking
Lufthansa Logo
Lufthansa

05/12/25

1:20pm
ONT
23h
DEN
Lufthansa Logo
Lufthansa

05/22/25

8:00am
FCO
7h 15m
MUC
$658
Free cancellation within 83 hours of booking
British Airways Logo
British Airways

04/27/25

7:00am
ONT
25h 5m
DFW
British Airways Logo
British Airways

05/06/25

10:00am
FCO
9h 27m
DFW
$659
Free cancellation within 83 hours of booking
British Airways Logo
British Airways

04/22/25

11:59pm
ONT
32h 6m
DFW
British Airways Logo
British Airways

05/14/25

11:05am
FCO
10h 47m
ORD
$659
Free cancellation within 83 hours of booking
British Airways Logo
British Airways

04/19/25

11:59pm
ONT
32h 6m
DFW
British Airways Logo
British Airways

05/15/25

1:10pm
FCO
8h 52m
PHL
$659
Free cancellation within 83 hours of booking
British Airways Logo
British Airways

04/23/25

7:00am
ONT
25h 5m
DFW
British Airways Logo
British Airways

04/30/25

1:35pm
FCO
9h 50m
JFK
$659
Free cancellation within 83 hours of booking
British Airways Logo
British Airways

05/04/25

11:59pm
ONT
35h 31m
DFW
LHR
British Airways Logo
British Airways

05/21/25

10:00am
FCO
11h 58m
DFW
$667
Free cancellation within 83 hours of booking
British Airways Logo
British Airways

05/07/25

1:14pm
ONT
33h 51m
PHX
LHR
British Airways Logo
British Airways

05/22/25

10:00am
FCO
11h 58m
DFW
$668
Free cancellation within 83 hours of booking
British Airways Logo
British Airways

04/22/25

2:44pm
ONT
33h 11m
DFW
LHR
British Airways Logo
British Airways

05/06/25

10:00am
FCO
11h 58m
DFW
$668
Free cancellation within 83 hours of booking
SWISS Logo
SWISS

05/03/25

4:15pm
ONT
44h 5m
DEN
SWISS Logo
SWISS

05/12/25

8:10pm
FCO
20h 20m
ZRH
$671
Free cancellation within 83 hours of booking
Lufthansa Logo
Lufthansa

05/07/25

1:20pm
ONT
23h
DEN
Lufthansa Logo
Lufthansa

05/22/25

7:10am
FCO
10h 29m
FRA
SFO
$674
Free cancellation within 83 hours of booking
SWISS Logo
SWISS

04/27/25

1:20pm
ONT
24h
SFO
SWISS Logo
SWISS

05/05/25

8:10pm
FCO
20h 20m
ZRH
$678
Free cancellation within 83 hours of booking
Lufthansa Logo
Lufthansa

04/22/25

5:00am
ONT
26h 55m
DEN
ORD
Lufthansa Logo
Lufthansa

05/06/25

7:00am
FCO
15h
FRA
IAH
$679
Free cancellation within 83 hours of booking
Lufthansa Logo
Lufthansa

04/20/25

1:20pm
ONT
24h
SFO
Lufthansa Logo
Lufthansa

04/30/25

10:00am
FCO
10h 30m
FRA
IAD
$689
Free cancellation within 83 hours of booking
Lufthansa Logo
Lufthansa

04/23/25

1:20pm
ONT
24h
SFO
Lufthansa Logo
Lufthansa

04/30/25

10:00am
FCO
10h 30m
FRA
IAD
$689
Free cancellation within 83 hours of booking
Delta Air Lines Logo
Delta Air Lines

04/23/25

5:15pm
ONT
38h 20m
SLC
ATL
Delta Air Lines Logo
Delta Air Lines

04/30/25

9:45am
FCO
12h 6m
ATL
SLC
$691
Free cancellation within 83 hours of booking
United Airlines Logo
United Airlines

04/25/25

7:05am
ONT
30h 35m
SFO
United Airlines Logo
United Airlines

05/07/25

11:00am
FCO
9h 49m
EWR
$691
Free cancellation within 83 hours of booking
Air Canada Logo
Air Canada

05/02/25

1:20pm
ONT
23h
DEN
Air Canada Logo
Air Canada

05/09/25

1:20pm
FCO
21h 21m
FRA
YYZ
$692
Free cancellation within 83 hours of booking

Top Deals on flights from Ontario International Airport to Rome Fiumicino Airport

Los Angeles, US (LAX) - Rome, IT (ROM)

Delta Air Lines Logo
Delta Air Lines

Apr 23

7:00am
ONT
24h 35m
ATL

as low as

$520

Los Angeles, US (LAX) - Rome, IT (ROM)

United Airlines Logo
United Airlines

Apr 21

1:20pm
ONT
24h
SFO

as low as

$520

Los Angeles, US (LAX) - Rome, IT (ROM)

United Airlines Logo
United Airlines

May 11

1:20pm
ONT
23h
DEN

as low as

$520

Los Angeles, US (LAX) - Rome, IT (ROM)

British Airways Logo
British Airways

Apr 27

7:00am
ONT
25h 5m
DFW

as low as

$534

Los Angeles, US (LAX) - Rome, IT (ROM)

British Airways Logo
British Airways

Apr 23

2:44pm
ONT
28h 31m
DFW
LHR

as low as

$538

Los Angeles, US (LAX) - Rome, IT (ROM)

British Airways Logo
British Airways

Apr 27

4:35pm
ONT
31h 20m
PHX
LHR

as low as

$538

Los Angeles, US (LAX) - Rome, IT (ROM)

United Airlines Logo
United Airlines

Apr 29

6:10am
ONT
30h 20m
IAH
FRA

as low as

$543

Los Angeles, US (LAX) - Rome, IT (ROM)

KLM Logo
KLM

Apr 26

10:15pm
ONT
33h 20m
ATL

as low as

$546

Los Angeles, US (LAX) - Rome, IT (ROM)

American Airlines Logo
American Airlines

May 10

11:59pm
ONT
33h 51m
DFW
CLT

as low as

$620

Los Angeles, US (LAX) - Rome, IT (ROM)

IBERIA Logo
IBERIA

Apr 29

7:00am
ONT
25h 5m
DFW

as low as

$634

Los Angeles, US (LAX) - Rome, IT (ROM)

KLM Logo
KLM

Apr 19

6:00am
ONT
49h 35m
SLC
ATL

as low as

$803

Los Angeles, US (LAX) - Rome, IT (ROM)

Finnair Logo
Finnair

May 17

10:59pm
ONT
32h 6m
JFK

as low as

$807
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