Cheap flights from Ontario to Rome from $388

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Rome departing on 10/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Cheap round-trip flights

United Airlines Logo
5:05 am - 8:55 amONT-FCO
18h 50m2 stops
United Airlines Logo
1:15 pm - 3:21 pmFCO-ONT
35h 06m2 stops
$483United Airlines
Find Deal
Sun, Nov 16 - Wed, Nov 26
 Logo
10:30 pm - 10:30 amONT-FCO
27h 00m1 stop
 Logo
12:40 pm - 11:38 amFCO-ONT
31h 58m1 stop
Tue, Jan 20 - Tue, Feb 3
Delta Logo
6:37 am - 7:45 pmONT-FCO
28h 08m2 stops
Delta Logo
12:40 pm - 10:41 pmFCO-ONT
19h 01m1 stop
$494Delta
Find Deal
Mon, Nov 3 - Thu, Nov 13
Iberia Logo
10:57 am - 3:30 pmONT-FCO
20h 33m2 stops
Iberia Logo
1:00 pm - 9:58 pmFCO-ONT
17h 58m1 stop
$515Iberia
Find Deal
Mon, Oct 27 - Thu, Dec 4
American Airlines Logo
10:35 pm - 9:50 amONT-FCO
26h 15m1 stop
American Airlines Logo
12:10 pm - 9:11 pmFCO-ONT
18h 01m1 stop
$521American Airlines
Find Deal
Sat, Sep 6 - Thu, Sep 18
Iberia Logo
8:15 am - 12:15 amONT-FCO
32h 00m2 stops
Iberia Logo
1:00 pm - 9:58 pmFCO-ONT
17h 58m1 stop
$523Iberia
Find Deal
Wed, Oct 29 - Fri, Dec 5
American Airlines Logo
10:35 pm - 9:50 amONT-FCO
26h 15m1 stop
American Airlines Logo
1:35 pm - 11:59 pmFCO-ONT
19h 24m2 stops
$526American Airlines
Find Deal
Sat, Sep 6 - Thu, Sep 18
British Airways Logo
4:47 pm - 7:20 pmONT-FCO
17h 33m2 stops
British Airways Logo
7:25 am - 10:23 pmFCO-ONT
23h 58m2 stops
$529British Airways
Find Deal
Wed, Nov 19 - Tue, Nov 25
Delta Logo
10:00 pm - 7:35 amONT-FCO
24h 35m1 stop
Delta Logo
10:00 am - 10:41 pmFCO-ONT
21h 41m2 stops
$542Delta
Find Deal
Sun, Oct 12 - Tue, Oct 21
British Airways Logo
4:45 pm - 11:30 pmONT-FCO
21h 45m2 stops
British Airways Logo
12:10 pm - 9:24 pmFCO-ONT
18h 14m1 stop
$576British Airways
Find Deal
Fri, Sep 5 - Wed, Sep 10

Iberia flights from Ontario to Rome

Our best Iberia deals on Ontario to Rome flight tickets
Iberia
Oct 27
ONT10:57 amOntario
20h 33m
2 stops
FCO3:30 pmRome Fiumicino
Dec 4
FCO1:00 pmRome Fiumicino
17h 58m
1 stop
ONT9:58 pmOntario
Iberia
Oct 29
ONT8:15 amOntario
32h 00m
2 stops
FCO12:15 amRome Fiumicino
Dec 5
FCO1:00 pmRome Fiumicino
17h 58m
1 stop
ONT9:58 pmOntario
Iberia
Oct 11
ONT2:51 pmOntario
32h 14m
1 stop
FCO8:05 amRome Fiumicino
Oct 21
FCO8:25 pmRome Fiumicino
55h 37m
2 stops
ONT7:02 pmOntario

Delta flights from Ontario to Rome

Our best Delta deals on Ontario to Rome flight tickets
Delta
Nov 3
ONT6:37 amOntario
28h 08m
2 stops
FCO7:45 pmRome Fiumicino
Nov 13
FCO12:40 pmRome Fiumicino
19h 01m
1 stop
ONT10:41 pmOntario
Delta
Oct 12
ONT10:00 pmOntario
24h 35m
1 stop
FCO7:35 amRome Fiumicino
Oct 21
FCO10:00 amRome Fiumicino
21h 41m
2 stops
ONT10:41 pmOntario
Delta
Oct 12
ONT10:00 pmOntario
24h 35m
1 stop
FCO7:35 amRome Fiumicino
Oct 20
FCO12:35 pmRome Fiumicino
42h 47m
2 stops
ONT10:22 pmOntario

momondo Fare Finder

 
Customize your flight search to find flights from Ontario to Rome that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated August 21, 2025.
Use the filters below to find and compare flights from Ontario to Rome that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

OntarioRome

ONT - FCO

ONTFCO

Ontario

Sun 11/16

5:05 am-8:55 am

2 stops18h 50m

Rome Fiumicino

Wed 11/26

1:15 pm-3:21 pm

2 stops35h 06m

$483

OntarioRome

ONT - FCO

ONTFCO

Ontario

Tue 1/20

10:30 pm-10:30 am

1 stop27h 00m

Rome Fiumicino

Tue 2/3

12:40 pm-11:38 am

1 stop31h 58m

$486

OntarioRome

ONT - FCO

ONTFCO

Ontario

Mon 11/3

6:37 am-7:45 pm

2 stops28h 08m

Rome Fiumicino

Thu 11/13

12:40 pm-10:41 pm

1 stop19h 01m

$494

OntarioRome

ONT - FCO

ONTFCO

Ontario

Mon 10/27

10:57 am-3:30 pm

2 stops20h 33m

Rome Fiumicino

Thu 12/4

1:00 pm-9:58 pm

1 stop17h 58m

$515

OntarioRome

ONT - FCO

ONTFCO

Ontario

Sat 9/6

10:35 pm-9:50 am

1 stop26h 15m

Rome Fiumicino

Thu 9/18

12:10 pm-9:11 pm

1 stop18h 01m

$521

OntarioRome

ONT - FCO

ONTFCO

Ontario

Wed 10/29

8:15 am-12:15 am

2 stops32h 00m

Rome Fiumicino

Fri 12/5

1:00 pm-9:58 pm

1 stop17h 58m

$523

OntarioRome

ONT - FCO

ONTFCO

Ontario

Sat 9/6

10:35 pm-9:50 am

1 stop26h 15m

Rome Fiumicino

Thu 9/18

1:35 pm-11:59 pm

2 stops19h 24m

$526

OntarioRome

ONT - FCO

ONTFCO

Ontario

Wed 11/19

4:47 pm-7:20 pm

2 stops17h 33m

Rome Fiumicino

Tue 11/25

7:25 am-10:23 pm

2 stops23h 58m

$529

OntarioRome

ONT - FCO

ONTFCO

Ontario

Sun 10/12

10:00 pm-7:35 am

1 stop24h 35m

Rome Fiumicino

Tue 10/21

10:00 am-10:41 pm

2 stops21h 41m

$542

OntarioRome

ONT - FCO

ONTFCO

Ontario

Fri 9/5

4:45 pm-11:30 pm

2 stops21h 45m

Rome Fiumicino

Wed 9/10

12:10 pm-9:24 pm

1 stop18h 14m

$576

Flights are sorted by cheapest round-trip flights first.

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See travel insights to Rome from

How to get the cheapest flight ticket from Ontario to Rome

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

What is the cheapest month to fly to Rome?

The cheapest month to fly to Rome from Ontario is in December. Flight prices, which tend to average around $508, are often lower during this time because this is during the off-season. If you aren’t able to travel to Rome during the month of December, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $569.

What is the cheapest day to depart on your flight to Rome?

The cheapest day to depart on your flight to Rome is on a Tuesday when prices can be found for as low as $745. This is often the case because there is less demand to fly during this day of the week. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Rome on Sunday is $889.

What is the cheapest time of day to depart on your flight to Rome?

At noon is the cheapest time of day to fly from Ontario to Rome when you can find flight prices for as low as $629. Flying to Rome at noon is an ideal time because this is during off-peak travel hours. Flights to Rome are more costly in the afternoon, with an average ticket price of $873. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

Can stopping save me money on Ontario to Rome flights?

You could potentially save up to 32% on your flight if you consider stops on a Ontario to Rome flight.

When to book flights from Ontario to Rome

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Rome according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Ontario to Rome (ONT to ROM) flight deals and tips

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

Direct flights

None
There are no direct flights from Ontario to Rome. There are no popular flight routes from Ontario to Rome.
  • How far is Ontario to Rome by plane?

    There are 6306.5 mi between Ontario and Rome. A reasonable flight in good conditions will take 14h 38m.

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

    Prices for flights from Ontario Airport to Rome refresh daily.

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ontario Airport to Rome.

  • What documentation or ID do you need to fly to Rome?

    The necessary travel and health documents for your Rome trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Ontario to Rome?

Best airlines flying from Ontario to Rome

Compare and see reviews for airlines that fly from Ontario to Rome with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom $514Free CancellationRating
6.7
7,291 reviews
Search British Airways flights
DeltaPriceFrom $519Free CancellationRating
7.9
7,981 reviews
Search Delta flights
KLMPriceFrom $520Free CancellationRating
7.8
1,388 reviews
Search KLM flights
United AirlinesPriceFrom $569Free CancellationRating
7.4
8,930 reviews
Search United Airlines flights
American AirlinesPriceFrom $859Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights

Traveling to a place near Rome?

Book flights to Rome if you plan to visit one of these locations
Fiumicino
Civitavecchia
Cassino
Ponza
Pienza
Tivoli
Sperlonga
Ciampino
Gaeta
Santa Marinella
Cortona
Orvieto
Montepulciano
Saturnia
Grosseto
Anzio
Sabaudia
Terracina
Ascoli Piceno
Foligno

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Ontario to Rome. Millions of users trust and use momondo every year so you are in good hands.

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

Yes. All flights to Rome from Ontario on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Rome from Ontario.

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

If you are simply researching potential flights to Rome, momondo offers a useful price alert feature which will track prices for flights to Rome from Ontario and alert you when they change.

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1 adult
Tue 8/26
Tue 9/2

Find better results for your trip to Italy

Fly into one of these airports located in Rome

Airports listed have a maximum distance of 14.7 mi from Rome