How many flights depart from Ontario to North America on average per day?

As of August 2026, there are 59 flights per day flying from Ontario to North America. The most common time of day flights depart is 11:00AM, with 45% of flights taking off at noon.

What airlines fly to North America?

Frontier, United Airlines and Delta are the top three most popular airlines that fly to North America from Ontario according to our data. Frontier is the first choice among our users, with 32% of people opting to fly with this airline when traveling to North America. Keep in mind that there are 19 different airlines that fly to North America on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Ontario to North America?

United Airlines, Southwest, and Delta are the most popular carriers operating from Ontario to North America

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

As of August 2026, 418 flights take off from Ontario and land in North America each week. The most common flight departure day for this route is Sun, with 23% of weekly flights taking off on this day.

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

Prices for flights from Ontario Airport to North America are updated daily.

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

The number of operators available for flights from Ontario Airport to North America is 8 as of August 2026.

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

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 North America.

What documentation or ID do you need to fly to North America?

The travel and health documents you'll need for your trip to North America may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at North America. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$28 Cheap Flights from Ontario to North America in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Ontario to North America

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

12:07 pm - 1:43 pm

ONT

SFO

1h 36mnonstop

6:02 pm - 7:36 pm

SFO

ONT

1h 34mnonstop

$66Frontier

Mon, Sep 14 - Thu, Sep 17

12:07 pm - 1:43 pm

ONT

SFO

1h 36mnonstop

6:02 pm - 7:36 pm

SFO

ONT

1h 34mnonstop

$66Frontier

Mon, Sep 21 - Mon, Sep 21

7:13 pm - 8:56 pm

ONT

SFO

1h 43mnonstop

6:30 pm - 8:01 pm

SFO

ONT

1h 31mnonstop

$117United Airlines

Mon, Aug 31 - Sat, Sep 12

1:56 pm - 3:25 pm

ONT

SFO

1h 29mnonstop

4:40 pm - 6:11 pm

SFO

ONT

1h 31mnonstop

$117United Airlines

Tue, Sep 1 - Thu, Sep 10

5:45 pm - 11:30 pm

ONT

SFO

5h 45m

1 stop

5:10 am - 11:25 am

SFO

ONT

6h 15m

1 stop

$151Southwest

Mon, Sep 21 - Thu, Sep 24

5:40 am - 11:55 am

ONT

SFO

6h 15m

1 stop

5:10 am - 9:55 am

SFO

ONT

4h 45m

1 stop

$151Southwest

Mon, Aug 24 - Thu, Aug 27

4:27 pm - 3:28 pm

ONT

LAS

23h 01m

1 stop

6:00 am - 7:04 am

LAS

ONT

1h 04mnonstop

$196Multiple Airlines

Fri, Sep 25 - Sun, Sep 27

6:00 am - 11:47 am

ONT

DEN

4h 47m

1 stop

6:28 pm - 10:23 pm

DEN

ONT

4h 55m

1 stop

$197Delta

Sat, Aug 22 - Sat, Aug 22

5:05 pm - 10:33 pm

ONT

DEN

4h 28m

1 stop

6:25 pm - 11:48 pm

DEN

ONT

6h 23m

1 stop

$197Delta

Thu, Jan 7 - Mon, Jan 11

5:05 pm - 8:01 pm

ONT

SEA

2h 56mnonstop

9:57 am - 4:02 pm

SEA

ONT

6h 05m

1 stop

$198Multiple Airlines

Sat, Oct 10 - Tue, Oct 13

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Frontier flights from Ontario to North America

Our best Frontier deals on Ontario to North America flight tickets

Frontier

Sep 14

ONT12:07 pmOntario

1h 36m

SFO1:43 pmSan Francisco

Sep 17

SFO6:02 pmSan Francisco

1h 34m

ONT7:36 pmOntario

$66

Frontier

Aug 27

ONT8:48 amOntario

1h 27m

SFO10:15 amSan Francisco

Sep 6

SFO9:00 amSan Francisco

1h 29m

ONT10:29 amOntario

$67

Frontier

Aug 22

ONT8:48 amOntario

1h 27m

SFO10:15 amSan Francisco

Aug 24

SFO9:33 amSan Francisco

1h 29m

ONT11:02 amOntario

$68

Delta flights from Ontario to North America

Our best Delta deals on Ontario to North America flight tickets

Delta

Sep 15

ONT6:20 amOntario

3h 00m

SEA9:20 amSeattle/Tacoma Intl

Sep 22

SEA7:50 pmSeattle/Tacoma Intl

2h 50m

ONT10:40 pmOntario

$237

Delta

Aug 31

ONT6:20 amOntario

8h 40m

1 stop

ORD5:00 pmChicago O'Hare Intl

Sep 5

ORD2:30 pmChicago O'Hare Intl

9h 53m

2 stops

ONT10:23 pmOntario

$279

Delta

Aug 17

ONT5:05 pmOntario

4h 50m

1 stop

DEN10:55 pmDenver Intl

Sep 5

DEN6:28 pmDenver Intl

4h 55m

1 stop

ONT10:23 pmOntario

$283

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioSan Francisco

ONT - SFO

ONTSFO

Ontario

Mon 9/14

12:07 pm-1:43 pm

Nonstop1h 36m

San Francisco

Thu 9/17

6:02 pm-7:36 pm

Nonstop1h 34m

$66

OntarioSan Francisco

ONT - SFO

ONTSFO

Ontario

Mon 9/21

12:07 pm-1:43 pm

Nonstop1h 36m

San Francisco

Mon 9/21

6:02 pm-7:36 pm

Nonstop1h 34m

$66

OntarioSan Francisco

ONT - SFO

ONTSFO

Ontario

Mon 8/31

7:13 pm-8:56 pm

Nonstop1h 43m

San Francisco

Sat 9/12

6:30 pm-8:01 pm

Nonstop1h 31m

$117

Quickest round-trip

OntarioSan Francisco

ONT - SFO

ONTSFO

Ontario

Tue 9/1

1:56 pm-3:25 pm

Nonstop1h 29m

San Francisco

Thu 9/10

4:40 pm-6:11 pm

Nonstop1h 31m

$117

OntarioSan Francisco

ONT - SFO

ONTSFO

Ontario

Mon 9/21

5:45 pm-11:30 pm

1 stop5h 45m

San Francisco

Thu 9/24

5:10 am-11:25 am

1 stop6h 15m

$151

OntarioSan Francisco

ONT - SFO

ONTSFO

Ontario

Mon 8/24

5:40 am-11:55 am

1 stop6h 15m

San Francisco

Thu 8/27

5:10 am-9:55 am

1 stop4h 45m

$151

OntarioLas Vegas

ONT - LAS

ONTLAS

Ontario

Fri 9/25

4:27 pm-3:28 pm

1 stop23h 01m

Las Vegas Harry Reid Intl

Sun 9/27

6:00 am-7:04 am

Nonstop1h 04m

$196

OntarioDenver

ONT - DEN

ONTDEN

Ontario

Sat 8/22

6:00 am-11:47 am

1 stop4h 47m

Denver Intl

Sat 8/22

6:28 pm-10:23 pm

1 stop4h 55m

$197

OntarioDenver

ONT - DEN

ONTDEN

Ontario

Thu 1/7

5:05 pm-10:33 pm

1 stop4h 28m

Denver Intl

Mon 1/11

6:25 pm-11:48 pm

1 stop6h 23m

$197

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Sat 10/10

5:05 pm-8:01 pm

Nonstop2h 56m

Seattle/Tacoma Intl

Tue 10/13

9:57 am-4:02 pm

1 stop6h 05m

$198

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 North America

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 month to fly to North America?

The month of September is, on average, the cheapest month to fly to North America from Ontario, with most prices found around $300. If you are unable to visit North America during the month of September, then departing from Ontario during the month October is also very affordable. Most momondo users find prices during this month for around $311.

What is the cheapest day to depart on your flight to North America?

The cheapest day to depart from Ontario to North America is on a Monday. Travelers who choose to depart for North America on a Monday will often find tickets for as low as $388. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to North America on Saturday is $492.

What is the cheapest Ontario to North America flight route?

Fly from Ontario to San Francisco for the best Ontario - North America flight prices

How far in advance should I book a flight from Ontario to North America?

You are more likely to see cheaper flights to North America from Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to North America for around $378 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to North America from Ontario for as low as $319 on momondo.

What cabin class options are available on Ontario to North America flights?

There are 4 cabin classes available to choose from on Ontario to North America 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 North America flights?

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

Cheap Ontario to North America flight deals and tips

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

Best Price Found	$90
Fastest flight time	1h 00m
Direct flights	Every day
Airports in North America	5,170 airports

The best one-way flight to North America from Ontario in the past 72 hours is $90. The best round-trip flight deal from Ontario to North America found on momondo in the last 72 hours is $154.

The fastest flight from Ontario to North America takes 1h 00m

Direct flights go from Ontario to North America every day.

There are 5,170 airports in North America. From Ontario there are direct flights to Las Vegas Harry Reid Intl (LAS).

Search flight deals

Frequently asked questions about flying from Ontario to North America

When did momondo last update prices for flights from Ontario Airport to North America?
Prices for flights from Ontario Airport to North America are updated daily.
How many operators does momondo search for flights from Ontario Airport to North America?
The number of operators available for flights from Ontario Airport to North America is 8 as of August 2026.
How old do you have to be to fly from Ontario Airport to North America?
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 North America.
What documentation or ID do you need to fly to North America?
The travel and health documents you'll need for your trip to North America may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at North America. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Ontario to North America?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Ontario to North America is Airbus A321neo (15.45% of total bookings). The next most popular plane models are Airbus A321-100/200 (13.94%), Airbus A320neo (13.20%), and Boeing 737 MAX 8 (11.46%).

Best airlines flying from Ontario to North America

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

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $50	Free Cancellation	Rating 5.6 2,738 reviews	Search Frontier flights
Alaska Airlines	PriceFrom $91	Free Cancellation	Rating 7.9 12,762 reviews	Search Alaska Airlines flights
United Airlines	PriceFrom $94	Free Cancellation	Rating 7.4 10,060 reviews	Search United Airlines flights
JetBlue	PriceFrom $120	Free Cancellation	Rating 7.2 3,025 reviews	Search JetBlue flights
Southwest	PriceFrom $126	Free Cancellation	Rating 8.0 4,222 reviews	Search Southwest flights
Delta	PriceFrom $128	Free Cancellation	Rating 7.8 8,483 reviews	Search Delta flights
Viva	PriceFrom $172	Free Cancellation	Rating 7.0 805 reviews	Search Viva flights
American Airlines	PriceFrom $200	Free Cancellation	Rating 7.1 11,851 reviews	Search American Airlines flights
Volaris	PriceFrom $262	Free Cancellation	Rating 6.6 1,146 reviews	Search Volaris flights

Why use momondo?

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

It is quick and easy to find Ontario to North America flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to North America that suits you.

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

Yes. momondo enables you to select and highlight flights to North America from Ontario with this policy.

How can momondo help me find flights from Ontario to North America?

momondo provides multiple filters to help you find the best flight to North America 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 North America right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Ontario to North America flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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Popular cities

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Popular cities in North America

Flights to New Yorkfrom $76

Flights to Los Angelesfrom $56

Flights to Orlandofrom $50

Flights to Miamifrom $54

Flights to Chicagofrom $58

Flights to San Franciscofrom $46

Flights to Las Vegasfrom $46

Flights to Washington, D.C.from $48

Flights to Bostonfrom $51

Flights to Atlantafrom $51

Flights to Fort Lauderdalefrom $46

Flights to Dallasfrom $61

Cheap flights from Ontario to North America from $28

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 North America departing on 8/19. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Frontier flights from Ontario to North America

Our best Frontier deals on Ontario to North America flight tickets

Delta flights from Ontario to North America

Our best Delta deals on Ontario to North America flight tickets

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

How to get the cheapest flight ticket from Ontario to North America

What is the cheapest month to fly to North America?

What is the cheapest day to depart on your flight to North America?

What is the cheapest Ontario to North America flight route?

How far in advance should I book a flight from Ontario to North America?

What cabin class options are available on Ontario to North America flights?

Can stopping save me money on Ontario to North America flights?

What is the cheapest airline that flies from Ontario to North America?

What airlines fly to North America?

How many flights depart from Ontario to North America on average per day?

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

Cheap Ontario to North America flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Airports in North America

Frequently asked questions about flying from Ontario to North America

Best airlines flying from Ontario to North America

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

Why use momondo?

An easier way to manage your North America 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 to North America

Popular cities in North America

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

Ontario flight routes

According to popular flight searches on momondo this year

North America flight routes

According to popular flight searches on momondo this year

Fly your favorite airline to North America

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to North America

List of cabin classes available on flights landing in North America. Availability may vary depending on flight origin and airline.

Complete your trip to North America

Explore popular destinations other users love

According to popular flight searches on momondo this year