What is the cheapest airline that flies from Ontario to Italy?

Delta, United Airlines, and KLM are the most popular carriers operating from Ontario to Italy

What airlines fly to Italy?

ITA Airways, United Airlines and Lufthansa are the top three most popular airlines that fly to Italy from Ontario according to our data. ITA Airways is the first choice among our users, with 50% of people opting to fly with this airline when traveling to Italy. Keep in mind that there are 21 different airlines that fly to Italy on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Ontario Airport to Italy?

Prices for flights from Ontario Airport to Italy were last updated today.

How many operators does momondo search for flights from Ontario Airport to Italy?

As of September 2026, there are 2 operators available to choose from for flights from Ontario Airport to Italy.

How old do you have to be to fly from Ontario Airport to Italy?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Italy.

What documentation or ID do you need to fly to Italy?

The travel and health documents required for your trip to Italy can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Italy. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$317 Cheap Flights from Ontario to Italy in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Ontario to Italy

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

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

$604Delta

Sun, Oct 25 - Tue, Nov 10

7:05 am - 8:15 amONT Ontario-FCO Rome Fiumicino

16h 10m1 stop Atlanta Hartsfield-Jackson

10:25 am - 9:56 pmFCO Rome Fiumicino-ONT Ontario

20h 31m1 stop Atlanta Hartsfield-Jackson

$611Delta

Tue, Dec 1 - Fri, Dec 11

7:05 am - 8:15 amONT Ontario-FCO Rome Fiumicino

16h 10m1 stop Atlanta Hartsfield-Jackson

10:25 am - 8:59 pmFCO Rome Fiumicino-ONT Ontario

19h 34m1 stop Atlanta Hartsfield-Jackson

$611Delta

Wed, Dec 2 - Wed, Dec 9

7:05 am - 8:15 amONT Ontario-FCO Rome Fiumicino

16h 10m1 stop Atlanta Hartsfield-Jackson

10:25 am - 8:59 pmFCO Rome Fiumicino-ONT Ontario

19h 34m1 stop Atlanta Hartsfield-Jackson

$611Delta

Tue, Dec 1 - Wed, Dec 9

7:07 am - 9:55 amONT Ontario-MXP Milan Malpensa

18h 48m1 stop Atlanta Hartsfield-Jackson

6:30 am - 4:24 pmMXP Milan Malpensa-ONT Ontario

18h 54m2 stops Paris Charles de Gaulle Salt Lake City

$618Multiple Airlines

Mon, Oct 26 - Wed, Nov 11

7:00 am - 6:25 pmONT Ontario-MXP Milan Malpensa

26h 25m2 stops Dallas/Fort Worth Madrid Barajas

2:25 pm - 9:40 amMXP Milan Malpensa-ONT Ontario

28h 15m2 stops Madrid Barajas Dallas/Fort Worth

$713Iberia

Sun, Nov 15 - Wed, Dec 2

7:00 am - 10:45 amONT Ontario-MXP Milan Malpensa

18h 45m1 stop Atlanta Hartsfield-Jackson

12:20 pm - 10:14 pmMXP Milan Malpensa-ONT Ontario

17h 54m1 stop Atlanta Hartsfield-Jackson

$717KLM

Tue, Mar 9 - Tue, Mar 23

6:40 pm - 4:20 pmONT Ontario-FLR Florence Peretola

36h 40m2 stops San Francisco Munich Franz Josef Strauss

2:20 pm - 10:53 pmFLR Florence Peretola-ONT Ontario

17h 33m2 stops Frankfurt am Main San Francisco

$720United Airlines

Sat, Dec 12 - Tue, Dec 22

11:20 am - 4:20 pmONT Ontario-FLR Florence Peretola

20h 00m2 stops San Francisco Munich Franz Josef Strauss

2:20 pm - 11:06 pmFLR Florence Peretola-ONT Ontario

17h 46m2 stops Frankfurt am Main San Francisco

$725United Airlines

Wed, Feb 24 - Wed, Mar 10

6:53 pm - 8:15 pmONT Ontario-FLR Florence Peretola

16h 22m2 stops San Francisco Munich Franz Josef Strauss

2:20 pm - 11:06 pmFLR Florence Peretola-ONT Ontario

17h 46m2 stops Frankfurt am Main San Francisco

$725United Airlines

Mon, Mar 1 - Fri, Mar 12

Cheap last minute flights

Enter your travel dates to find the best prices.

9:52 am - 11:00 amONT Ontario-FCO Rome Fiumicino

16h 08m2 stops Salt Lake City Detroit Metropolitan Wayne County

12:20 pm - 10:40 pmFCO Rome Fiumicino-ONT Ontario

19h 20m1 stop Seattle/Tacoma Intl

$711Delta

Tue, Sep 15 - Tue, Sep 29

9:01 am - 1:40 pmONT Ontario-FCO Rome Fiumicino

19h 39m1 stop San Francisco

2:20 pm - 8:58 pmFCO Rome Fiumicino-ONT Ontario

15h 38m1 stop Denver Intl

$857United Airlines

Tue, Sep 15 - Tue, Sep 29

12:17 pm - 12:40 pmONT Ontario-FCO Rome Fiumicino

15h 23m1 stop Atlanta Hartsfield-Jackson

9:45 am - 6:22 pmFCO Rome Fiumicino-ONT Ontario

17h 37m1 stop Atlanta Hartsfield-Jackson

$857KLM

Sun, Sep 13 - Thu, Oct 8

5:00 am - 12:20 pmONT Ontario-FCO Rome Fiumicino

22h 20m1 stop Denver Intl

7:10 am - 10:59 pmFCO Rome Fiumicino-ONT Ontario

24h 49m2 stops Frankfurt am Main San Francisco

$857United Airlines

Mon, Sep 14 - Thu, Sep 24

1:18 pm - 12:20 pmONT Ontario-FCO Rome Fiumicino

14h 02m1 stop Denver Intl

2:20 pm - 8:58 pmFCO Rome Fiumicino-ONT Ontario

15h 38m1 stop Denver Intl

$857United Airlines

Tue, Sep 15 - Wed, Oct 7

6:00 pm - 10:10 amONT Ontario-FCO Rome Fiumicino

31h 10m1 stop Seattle/Tacoma Intl

9:45 am - 6:07 pmFCO Rome Fiumicino-ONT Ontario

17h 22m1 stop Atlanta Hartsfield-Jackson

$863Delta

Sat, Sep 12 - Thu, Sep 24

6:00 pm - 10:10 amONT Ontario-FCO Rome Fiumicino

31h 10m1 stop Seattle/Tacoma Intl

9:45 am - 6:07 pmFCO Rome Fiumicino-ONT Ontario

17h 22m1 stop Atlanta Hartsfield-Jackson

$863Delta

Sat, Sep 12 - Thu, Sep 24

6:00 pm - 10:10 amONT Ontario-FCO Rome Fiumicino

31h 10m1 stop Seattle/Tacoma Intl

9:45 am - 6:07 pmFCO Rome Fiumicino-ONT Ontario

17h 22m1 stop Atlanta Hartsfield-Jackson

$863Delta

Sat, Sep 12 - Fri, Sep 25

1:18 pm - 12:20 pmONT Ontario-FCO Rome Fiumicino

14h 02m1 stop Denver Intl

2:20 pm - 8:53 pmFCO Rome Fiumicino-ONT Ontario

15h 33m1 stop Denver Intl

$907Lufthansa

Tue, Sep 15 - Tue, Sep 22

1:18 pm - 12:20 pmONT Ontario-FCO Rome Fiumicino

14h 02m1 stop Denver Intl

2:20 pm - 8:53 pmFCO Rome Fiumicino-ONT Ontario

15h 33m1 stop Denver Intl

$907Lufthansa

Mon, Sep 14 - Tue, Sep 22

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United Airlines flights from Ontario to Italy

Our best United Airlines deals on Ontario to Italy flight tickets

United Airlines

Dec 12

ONT6:40 pmOntario

36h 40m

2 stops

FLR4:20 pmFlorence Peretola

Dec 22

FLR2:20 pmFlorence Peretola

17h 33m

2 stops

ONT10:53 pmOntario

$720

United Airlines

Feb 10

ONT6:00 amOntario

16h 30m

2 stops

MXP7:30 amMilan Malpensa

Feb 16

MXP9:45 amMilan Malpensa

20h 36m

2 stops

ONT9:21 pmOntario

$721

United Airlines

Dec 11

ONT1:40 pmOntario

56h 50m

2 stops

MXP7:30 amMilan Malpensa

Dec 25

MXP12:55 pmMilan Malpensa

41h 05m

2 stops

ONT9:00 pmOntario

$725

Air France flights from Ontario to Italy

Our best Air France deals on Ontario to Italy flight tickets

Air France

Oct 28

ONT7:07 amOntario

18h 48m

1 stop

MXP9:55 amMilan Malpensa

Nov 11

MXP6:30 amMilan Malpensa

18h 54m

2 stops

ONT4:24 pmOntario

$758

Air France

Sep 27

ONT7:05 amOntario

15h 00m

1 stop

NAP7:05 amNaples

Oct 4

NAP9:05 amNaples

22h 19m

1 stop

ONT10:24 pmOntario

$1,444

Air France

Oct 1

ONT7:05 amOntario

15h 00m

1 stop

NAP7:05 amNaples

Oct 16

NAP9:05 amNaples

18h 16m

1 stop

ONT6:21 pmOntario

$1,484

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioRome

ONT Ontario - FCO Rome Fiumicino

ONTFCO

Ontario

Sun 10/25

7:07 am-8:15 am

1 stop17h 08m

Rome Fiumicino

Tue 11/10

10:25 am-8:54 pm

1 stop19h 29m

$604

OntarioRome

ONT Ontario - FCO Rome Fiumicino

ONTFCO

Ontario

Tue 12/1

7:05 am-8:15 am

1 stop16h 10m

Rome Fiumicino

Fri 12/11

10:25 am-9:56 pm

1 stop20h 31m

$611

OntarioRome

ONT Ontario - FCO Rome Fiumicino

ONTFCO

Ontario

Wed 12/2

7:05 am-8:15 am

1 stop16h 10m

Rome Fiumicino

Wed 12/9

10:25 am-8:59 pm

1 stop19h 34m

$611

OntarioRome

ONT Ontario - FCO Rome Fiumicino

ONTFCO

Ontario

Tue 12/1

7:05 am-8:15 am

1 stop16h 10m

Rome Fiumicino

Wed 12/9

10:25 am-8:59 pm

1 stop19h 34m

$611

OntarioMilan

ONT Ontario - MXP Milan Malpensa

ONTMXP

Ontario

Mon 10/26

7:07 am-9:55 am

1 stop18h 48m

Milan Malpensa

Wed 11/11

6:30 am-4:24 pm

2 stops18h 54m

$618

OntarioMilan

ONT Ontario - MXP Milan Malpensa

ONTMXP

Ontario

Sun 11/15

7:00 am-6:25 pm

2 stops26h 25m

Milan Malpensa

Wed 12/2

2:25 pm-9:40 am

2 stops28h 15m

$713

OntarioMilan

ONT Ontario - MXP Milan Malpensa

ONTMXP

Ontario

Tue 3/9

7:00 am-10:45 am

1 stop18h 45m

Milan Malpensa

Tue 3/23

12:20 pm-10:14 pm

1 stop17h 54m

$717

OntarioFlorence

ONT Ontario - FLR Florence Peretola

ONTFLR

Ontario

Sat 12/12

6:40 pm-4:20 pm

2 stops36h 40m

Florence Peretola

Tue 12/22

2:20 pm-10:53 pm

2 stops17h 33m

$720

OntarioFlorence

ONT Ontario - FLR Florence Peretola

ONTFLR

Ontario

Wed 2/24

11:20 am-4:20 pm

2 stops20h 00m

Florence Peretola

Wed 3/10

2:20 pm-11:06 pm

2 stops17h 46m

$725

Quickest round-trip

OntarioFlorence

ONT Ontario - FLR Florence Peretola

ONTFLR

Ontario

Mon 3/1

6:53 pm-8:15 pm

2 stops16h 22m

Florence Peretola

Fri 3/12

2:20 pm-11:06 pm

2 stops17h 46m

$725

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Ontario to Italy

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to Italy?

The cheapest month to fly to Italy from Ontario is in October. Flight prices, which tend to average around $689, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of October, then book flights to Italy from Ontario during February instead. Flights to Italy in February, while not as cheap as those in October, still average around $693.

Can stopping save me money on Ontario to Italy flights?

You could potentially save up to 46% on your flight if you consider stops on a Ontario to Italy flight.

Cheap Ontario to Italy flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Italy

Best Price Found	$317
Fastest flight time	13h 26m
Direct flights	None

The best one-way flight to Italy from Ontario in the past 72 hours is $317. The best round-trip flight deal from Ontario to Italy found on momondo in the last 72 hours is $604.

The fastest flight from Ontario to Italy takes 13h 26m

There are no direct flights from Ontario to Italy. There are no popular flight routes from Ontario to Italy.

Search flight deals

Frequently asked questions about flying from Ontario to Italy

When did momondo last update prices for flights from Ontario Airport to Italy?
Prices for flights from Ontario Airport to Italy were last updated today.
How many operators does momondo search for flights from Ontario Airport to Italy?
As of September 2026, there are 2 operators available to choose from for flights from Ontario Airport to Italy.
How old do you have to be to fly from Ontario Airport to Italy?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Italy.
What documentation or ID do you need to fly to Italy?
The travel and health documents required for your trip to Italy can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Italy. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Ontario to Italy

Compare and see reviews for airlines that fly from Ontario to Italy with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $480	Free Cancellation	Rating 7.8 8,554 reviews		Search Delta flights
United Airlines	PriceFrom $508	Free Cancellation	Rating 7.4 10,188 reviews		Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Italy?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Italy from Ontario.

Can I find flights from Ontario to Italy with flexible booking policies on momondo?

All flight searches from Ontario to Italy on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Ontario to Italy?

momondo provides multiple filters to help you find the best flight to Italy from Ontario. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Ontario to Italy right now. Can momondo alert me if prices change?

Price alerts on flights to Italy from Ontario are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.