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Flight Deals from Rome Fiumicino Airport to Ontario International Airport from $649

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Stops

Up to 1 stop
$649
Up to 2 stops
$743

Airlines

Air Canada
$748
Air France
$787
American Airlines
$748
British Airways
$649
Delta Air Lines
$761
IBERIA
$769
KLM
$823
Lufthansa
$828
United Airlines
$743

Cabin Class

Economy
$649

Departure Airports

Rome Fiumicino Airport
$649

Arrival Airports

Ontario International Airport
$649

Layover Airports

Chicago O Hare Airport
$748
Dallas Fort Worth International Airport
$649
Denver International Airport
$745
Dublin Airport
$1073
Frankfurt am Main Airport
$743
George Bush Intercontinental Houston Airport
$828
Hartsfield Jackson Atlanta International Airport
$761
London Heathrow Airport
$649
Montreal Trudeau Airport
$748
Munich Airport
$778
New York John F Kennedy Airport
$767
Newark Liberty Airport
$743
Philadelphia International Airport
$903
San Francisco International Airport
$743

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On average save $240 per traveler
British Airways Logo
British Airways

05/05/25

10:00am
FCO
8h 36m
DFW
British Airways Logo
British Airways

05/13/25

9:30pm
ONT
25h 20m
LHR
$649
Free cancellation within 83 hours of booking
United Airlines Logo
United Airlines

05/17/25

7:00am
FCO
13h 34m
FRA
SFO
United Airlines Logo
United Airlines

05/31/25

11:20pm
ONT
32h 15m
EWR
$743
Free cancellation within 83 hours of booking
United Airlines Logo
United Airlines

05/12/25

2:20pm
FCO
6h 33m
DEN
United Airlines Logo
United Airlines

05/26/25

6:00am
ONT
31h 20m
SFO
$745
Free cancellation within 83 hours of booking
United Airlines Logo
United Airlines

05/10/25

2:20pm
FCO
6h 33m
DEN
United Airlines Logo
United Airlines

05/24/25

6:00am
ONT
31h 20m
SFO
$748
Free cancellation within 83 hours of booking
American Airlines Logo
American Airlines

05/21/25

10:00am
FCO
8h 36m
DFW
American Airlines Logo
American Airlines

06/11/25

9:36am
ONT
23h 34m
ORD
$748
Free cancellation within 83 hours of booking
Air Canada Logo
Air Canada

05/21/25

11:30am
FCO
9h 23m
YUL
DEN
Air Canada Logo
Air Canada

06/11/25

1:14pm
ONT
23h 6m
DEN
$748
Free cancellation within 83 hours of booking
United Airlines Logo
United Airlines

05/11/25

2:20pm
FCO
6h 33m
DEN
United Airlines Logo
United Airlines

05/25/25

5:10am
ONT
31h 10m
DEN
$748
Free cancellation within 83 hours of booking
Delta Air Lines Logo
Delta Air Lines

05/11/25

9:45am
FCO
12h 44m
ATL
Delta Air Lines Logo
Delta Air Lines

05/25/25

12:18pm
ONT
43h 17m
ATL
$761
Free cancellation within 83 hours of booking
American Airlines Logo
American Airlines

05/15/25

10:00am
FCO
8h 36m
DFW
American Airlines Logo
American Airlines

06/04/25

3:30pm
ONT
39h 35m
JFK
$767
Free cancellation within 83 hours of booking
IBERIA Logo
IBERIA

05/05/25

10:00am
FCO
8h 36m
DFW
IBERIA Logo
IBERIA

05/15/25

3:40pm
ONT
24h 15m
LHR
$769
Free cancellation within 83 hours of booking
British Airways Logo
British Airways

05/05/25

10:00am
FCO
8h 36m
DFW
British Airways Logo
British Airways

05/13/25

8:05pm
ONT
23h 50m
LHR
$769
Free cancellation within 83 hours of booking
British Airways Logo
British Airways

05/02/25

10:00am
FCO
8h 29m
DFW
British Airways Logo
British Airways

05/13/25

8:05pm
ONT
23h 50m
LHR
$771
Free cancellation within 83 hours of booking
United Airlines Logo
United Airlines

05/06/25

8:00am
FCO
12h 53m
MUC
DEN
United Airlines Logo
United Airlines

05/20/25

10:44am
ONT
27h 6m
SFO
FRA
$778
Free cancellation within 83 hours of booking
Air France Logo
Air France

05/11/25

9:45am
FCO
12h 44m
ATL
Air France Logo
Air France

05/25/25

12:18pm
ONT
43h 17m
ATL
$787
Free cancellation within 83 hours of booking
Delta Air Lines Logo
Delta Air Lines

05/12/25

9:45am
FCO
12h 44m
ATL
Delta Air Lines Logo
Delta Air Lines

05/26/25

10:00pm
ONT
33h 35m
ATL
$797
Free cancellation within 83 hours of booking
KLM Logo
KLM

05/12/25

11:35am
FCO
10h 54m
ATL
KLM Logo
KLM

05/26/25

10:00pm
ONT
33h 35m
ATL
$823
Free cancellation within 83 hours of booking
Air France Logo
Air France

05/12/25

9:45am
FCO
12h 44m
ATL
Air France Logo
Air France

05/26/25

10:00pm
ONT
33h 35m
ATL
$823
Free cancellation within 83 hours of booking
Lufthansa Logo
Lufthansa

05/24/25

8:45am
FCO
12h 25m
FRA
IAH
Lufthansa Logo
Lufthansa

06/11/25

1:14pm
ONT
23h 6m
DEN
$828
Free cancellation within 83 hours of booking
United Airlines Logo
United Airlines

05/15/25

10:00am
FCO
12h
FRA
IAH
United Airlines Logo
United Airlines

05/22/25

5:30pm
ONT
28h 25m
MUC
$845
Free cancellation within 83 hours of booking
American Airlines Logo
American Airlines

05/16/25

10:00am
FCO
23h 50m
DFW
American Airlines Logo
American Airlines

05/23/25

3:45pm
ONT
43h 35m
PHL
$903
Free cancellation within 83 hours of booking
United Airlines Logo
United Airlines

05/05/25

2:20pm
FCO
6h 33m
DEN
United Airlines Logo
United Airlines

05/15/25

6:45pm
ONT
27h 10m
SFO
MUC
$919
Free cancellation within 83 hours of booking
American Airlines Logo
American Airlines

05/19/25

10:00am
FCO
8h 36m
DFW
American Airlines Logo
American Airlines

06/11/25

9:36am
ONT
23h 34m
ORD
$950
Free cancellation within 83 hours of booking
Delta Air Lines Logo
Delta Air Lines

05/16/25

9:45am
FCO
12h 44m
ATL
Delta Air Lines Logo
Delta Air Lines

05/30/25

10:00pm
ONT
33h 35m
ATL
$957
Free cancellation within 83 hours of booking
Air France Logo
Air France

05/16/25

9:45am
FCO
12h 44m
ATL
Air France Logo
Air France

05/30/25

10:00pm
ONT
33h 35m
ATL
$983
Free cancellation within 83 hours of booking
KLM Logo
KLM

05/16/25

9:45am
FCO
12h 44m
ATL
KLM Logo
KLM

05/30/25

10:00pm
ONT
33h 35m
ATL
$983
Free cancellation within 83 hours of booking
KLM Logo
KLM

05/09/25

9:45am
FCO
12h 44m
ATL
KLM Logo
KLM

05/23/25

10:00pm
ONT
33h 35m
ATL
$1005
Free cancellation within 83 hours of booking
Lufthansa Logo
Lufthansa

04/30/25

7:00am
FCO
14h 58m
FRA
IAH
Lufthansa Logo
Lufthansa

05/24/25

9:41am
ONT
26h 44m
SFO
FRA
$1032
Free cancellation within 83 hours of booking
American Airlines Logo
American Airlines

05/21/25

10:00am
FCO
8h 36m
DFW
American Airlines Logo
American Airlines

06/11/25

8:15pm
ONT
38h 10m
DUB
$1073
Free cancellation within 83 hours of booking
American Airlines Logo
American Airlines

05/16/25

10:00am
FCO
11h 58m
DFW
American Airlines Logo
American Airlines

05/23/25

3:45pm
ONT
43h 35m
PHL
$1097
Free cancellation within 83 hours of booking
Lufthansa Logo
Lufthansa

05/15/25

10:00am
FCO
12h
FRA
IAH
Lufthansa Logo
Lufthansa

05/22/25

11:35am
ONT
27h 25m
DEN
MUC
$1201
Free cancellation within 83 hours of booking

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

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

British Airways Logo
British Airways

May 9

10:00am
FCO
8h 36m
DFW

as low as

$901

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

American Airlines Logo
American Airlines

May 16

10:00am
FCO
11h 58m
DFW

as low as

$1035

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

American Airlines Logo
American Airlines

May 10

12:10pm
FCO
8h 55m
CLT

as low as

$1035

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

American Airlines Logo
American Airlines

May 16

6:55am
FCO
11h 28m
LHR
PHX

as low as

$1048

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

IBERIA Logo
IBERIA

Apr 11

10:00am
FCO
12h 10m
DFW

as low as

$1060

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

American Airlines Logo
American Airlines

May 19

1:35pm
FCO
24h 17m
JFK
DFW

as low as

$1076

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

LOT Polish Airlines Logo
LOT Polish Airlines

May 31

7:05pm
FCO
26h 6m
WAW
JFK

as low as

$1278

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

Delta Air Lines Logo
Delta Air Lines

Jun 18

10:25am
FCO
12h 21m
AMS
SEA

as low as

$1451

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

Condor Logo
Condor

Jul 9

8:20am
FCO
14h 10m
FRA
JFK

as low as

$1461

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

Air Canada Logo
Air Canada

Jun 1

11:30am
FCO
9h 34m
YUL
DEN

as low as

$1583

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

United Airlines Logo
United Airlines

Jun 24

2:20pm
FCO
6h 44m
DEN

as low as

$1583

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

United Airlines Logo
United Airlines

Apr 13

3:40pm
FCO
7h 15m
SFO

as low as

$1588
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