How many flights depart from Ontario to Worldwide on average per week?

As of November 2025, there are 364 flights per week flying from Ontario to Worldwide. The most common day of the week flights depart is Thu, with 20% of flights taking off on this day.

What airlines fly to Worldwide?

United Airlines, American Airlines and Delta are the top three most popular airlines that fly to Worldwide from Ontario according to our data. United Airlines is the first choice among our users, with 28% of people opting to fly with this airline when traveling to Worldwide. Keep in mind that there are 100 different airlines that fly to Worldwide on a routine basis, so you have a few additional options to choose from.

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

Frontier and United Airlines are the most popular carriers operating from Ontario to Worldwide

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

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

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

There are 10 operators available for flights from Ontario Airport to Worldwide as of November 2025.

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

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 Worldwide.

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

The required travel and health documents for your Worldwide trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Worldwide. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$29 Cheap Flights from Ontario to Worldwide in 2025/26

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Find the cheapest flights from Ontario to Worldwide

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Cheap round-trip flights

Enter your travel dates to find the best prices.

3:26 pm - 4:32 pmONT-LAS

1h 06mnonstop

8:13 pm - 9:17 pmLAS-ONT

1h 04mnonstop

$53Frontier

Find Deal

Thu, Jan 8 - Thu, Jan 8

8:00 am - 9:06 amONT-LAS

1h 06mnonstop

1:22 pm - 2:33 pmLAS-ONT

1h 11mnonstop

$57Frontier

Find Deal

Sat, Jan 10 - Wed, Jan 14

6:00 am - 7:24 amONT-SFO

1h 24mnonstop

10:55 am - 12:18 pmSFO-ONT

1h 23mnonstop

$72United Airlines

Find Deal

Thu, Dec 4 - Thu, Dec 4

6:00 am - 7:24 amONT-SFO

1h 24mnonstop

4:16 pm - 5:37 pmSFO-ONT

1h 21mnonstop

$77United Airlines

Find Deal

Wed, Dec 3 - Sat, Dec 6

4:49 pm - 11:25 pmONT-SEA

6h 36m1 stop

7:45 pm - 10:29 pmSEA-ONT

2h 44mnonstop

$129Delta

Find Deal

Sat, Dec 13 - Mon, Jan 5

12:40 pm - 3:38 pmONT-SEA

2h 58mnonstop

7:11 pm - 11:58 pmSEA-ONT

4h 47m1 stop

$130Delta

Find Deal

Sat, Dec 6 - Sun, Dec 7

3:55 pm - 8:40 pmONT-SEA

4h 45m1 stop

6:15 am - 1:15 pmSEA-ONT

7h 00m1 stop

$151Southwest

Find Deal

Mon, Dec 8 - Thu, Dec 11

3:30 pm - 10:55 pmONT-SEA

7h 25m1 stop

8:10 am - 3:20 pmSEA-ONT

7h 10m2 stops

$156Southwest

Find Deal

Fri, Dec 5 - Mon, Dec 8

7:00 am - 12:01 pmONT-DFW

3h 01mnonstop

10:45 pm - 11:55 pmDFW-ONT

3h 10mnonstop

$179American Airlines

Find Deal

Sat, Dec 6 - Sun, Dec 7

4:47 pm - 5:26 amONT-EWR

9h 39m1 stop

4:59 pm - 10:13 pmEWR-ONT

8h 14m1 stop

$295American Airlines

Find Deal

Fri, Dec 12 - Sun, Jan 18

Frontier flights from Ontario to Worldwide

Our best Frontier deals on Ontario to Worldwide flight tickets

Frontier

Jan 8

ONT3:26 pmOntario

1h 06m

LAS4:32 pmLas Vegas Harry Reid Intl

Jan 8

LAS8:13 pmLas Vegas Harry Reid Intl

1h 04m

ONT9:17 pmOntario

$53

Find similar

Frontier

Jan 10

ONT8:00 amOntario

1h 06m

LAS9:06 amLas Vegas Harry Reid Intl

Jan 14

LAS1:22 pmLas Vegas Harry Reid Intl

1h 11m

ONT2:33 pmOntario

$57

Find similar

Frontier

Jan 23

ONT1:28 pmOntario

1h 10m

LAS2:38 pmLas Vegas Harry Reid Intl

Jan 25

LAS3:56 pmLas Vegas Harry Reid Intl

1h 06m

ONT5:02 pmOntario

$58

Find similar

United Airlines flights from Ontario to Worldwide

Our best United Airlines deals on Ontario to Worldwide flight tickets

United Airlines

Dec 4

ONT6:00 amOntario

1h 24m

SFO7:24 amSan Francisco

Dec 4

SFO10:55 amSan Francisco

1h 23m

ONT12:18 pmOntario

$72

Find similar

United Airlines

Dec 3

ONT6:00 amOntario

1h 24m

SFO7:24 amSan Francisco

Dec 6

SFO4:16 pmSan Francisco

1h 21m

ONT5:37 pmOntario

$77

Find similar

United Airlines

Nov 13

ONT6:00 amOntario

1h 24m

SFO7:24 amSan Francisco

Nov 15

SFO9:30 pmSan Francisco

1h 21m

ONT10:51 pmOntario

$187

Find similar

Fly from

Fly to

Route

Depart

Return

Price

OntarioLas Vegas

ONT - LAS

ONTLAS

Ontario

Thu 1/8

3:26 pm-4:32 pm

Nonstop1h 06m

Las Vegas Harry Reid Intl

Thu 1/8

8:13 pm-9:17 pm

Nonstop1h 04m

$53

OntarioLas Vegas

ONT - LAS

ONTLAS

Ontario

Sat 1/10

8:00 am-9:06 am

Nonstop1h 06m

Las Vegas Harry Reid Intl

Wed 1/14

1:22 pm-2:33 pm

Nonstop1h 11m

$57

OntarioSan Francisco

ONT - SFO

ONTSFO

Ontario

Thu 12/4

6:00 am-7:24 am

Nonstop1h 24m

San Francisco

Thu 12/4

10:55 am-12:18 pm

Nonstop1h 23m

$72

OntarioSan Francisco

ONT - SFO

ONTSFO

Ontario

Wed 12/3

6:00 am-7:24 am

Nonstop1h 24m

San Francisco

Sat 12/6

4:16 pm-5:37 pm

Nonstop1h 21m

$77

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Sat 12/13

4:49 pm-11:25 pm

1 stop6h 36m

Seattle/Tacoma Intl

Mon 1/5

7:45 pm-10:29 pm

Nonstop2h 44m

$129

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Sat 12/6

12:40 pm-3:38 pm

Nonstop2h 58m

Seattle/Tacoma Intl

Sun 12/7

7:11 pm-11:58 pm

1 stop4h 47m

$130

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Mon 12/8

3:55 pm-8:40 pm

1 stop4h 45m

Seattle/Tacoma Intl

Thu 12/11

6:15 am-1:15 pm

1 stop7h 00m

$151

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Fri 12/5

3:30 pm-10:55 pm

1 stop7h 25m

Seattle/Tacoma Intl

Mon 12/8

8:10 am-3:20 pm

2 stops7h 10m

$156

OntarioDallas

ONT - DFW

ONTDFW

Ontario

Sat 12/6

7:00 am-12:01 pm

Nonstop3h 01m

Dallas/Fort Worth

Sun 12/7

10:45 pm-11:55 pm

Nonstop3h 10m

$179

OntarioNewark

ONT - EWR

ONTEWR

Ontario

Fri 12/12

4:47 pm-5:26 am

1 stop9h 39m

Newark

Sun 1/18

4:59 pm-10:13 pm

1 stop8h 14m

$295

Flights are sorted by cheapest round-trip flights first.

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How to get the cheapest flight ticket from Ontario to Worldwide

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

Other information

What is the cheapest Ontario to Worldwide flight route?

Fly from Ontario to Las Vegas Harry Reid Intl for the best Ontario - Worldwide flight prices

What cabin class options are available on Ontario to Worldwide flights?

There are 4 cabin classes available to choose from on Ontario to Worldwide flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Ontario to Worldwide flights?

No. A direct flight is the cheapest option for a flight between Ontario to Worldwide.

Cheap Ontario to Worldwide flight deals and tips

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

Best Price Found	$43
Fastest flight time	1h 05m
Direct flights	Every day
Airports in Worldwide	1 airport

The best one-way flight to Worldwide from Ontario in the past 72 hours is $43. The best round-trip flight deal from Ontario to Worldwide found on momondo in the last 72 hours is $119.

The fastest flight from Ontario to Worldwide takes 1h 05m

Direct flights go from Ontario to Worldwide every day.

There is 1 airport near Worldwide: Las Vegas Harry Reid Intl (LAS)

Search flight deals

When did momondo last update prices for flights from Ontario Airport to Worldwide?
Prices for flights from Ontario Airport to Worldwide were last updated today.
How many operators does momondo search for flights from Ontario Airport to Worldwide?
There are 10 operators available for flights from Ontario Airport to Worldwide as of November 2025.
How old do you have to be to fly from Ontario Airport to Worldwide?
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 Worldwide.
What documentation or ID do you need to fly to Worldwide?
The required travel and health documents for your Worldwide trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Worldwide. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Ontario to Worldwide?
Based on momondo bookings for flights between Ontario and Worldwide, the leading plane model is Airbus A320neo, making up 14.97% of the total bookings. Other popular models include Boeing 737 MAX 8 with 10.58%, Airbus A320-100/200 with 9.99%, and Airbus A321neo with 9.31%.

Why use momondo?

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

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 Worldwide from Ontario.

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

Yes. All flights to Worldwide 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 Worldwide?

Once you have performed a search for Ontario to Worldwide flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are not ready to book a flight from Ontario to Worldwide now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Worldwide and let you know when they change.

An easier way to manage your Worldwide trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Cheap flights from Ontario to Worldwide from $29

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 Worldwide departing on 2/24. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Ontario to Worldwide

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

Frontier flights from Ontario to Worldwide

Our best Frontier deals on Ontario to Worldwide flight tickets

United Airlines flights from Ontario to Worldwide

Our best United Airlines deals on Ontario to Worldwide flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Ontario to Worldwide that are best for you.

How to get the cheapest flight ticket from Ontario to Worldwide

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 Ontario to Worldwide flight route?

Fly from Ontario to Las Vegas Harry Reid Intl for the best Ontario - Worldwide flight prices

What cabin class options are available on Ontario to Worldwide flights?

There are 4 cabin classes available to choose from on Ontario to Worldwide flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Ontario to Worldwide flights?

No. A direct flight is the cheapest option for a flight between Ontario to Worldwide.

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

Frontier and United Airlines are the most popular carriers operating from Ontario to Worldwide

What airlines fly to Worldwide?

How many flights depart from Ontario to Worldwide on average per week?

As of November 2025, there are 364 flights per week flying from Ontario to Worldwide. The most common day of the week flights depart is Thu, with 20% of flights taking off on this day.

Cheap Ontario to Worldwide flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in Worldwide

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

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

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

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

What is the most popular plane model from Ontario to Worldwide?

Why use momondo?

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

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

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

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

An easier way to manage your Worldwide trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip

Popular cities

Popular flights according to clicks in the last 7 days on momondo