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

As of October 2026, there are 74 flights per day flying from Ontario to North America. The most common time of day flights depart is 12:00PM, with 44% of flights taking off in the afternoon.

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

As of October 2026, 524 flights take off from Ontario and land in North America each week. The most common flight departure day for this route is Fri, with 21% of weekly flights taking off on this day.

What airlines fly to North America?

American Airlines, United Airlines and Delta are the top three most popular airlines that fly to North America from Ontario according to our data. American Airlines is the first choice among our users, with 29% of people opting to fly with this airline when traveling to North America. Keep in mind that there are 17 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?

Frontier, Delta, and Alaska Airlines are the most popular carriers operating 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 10 as of October 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.

$40 Cheap Flights from Ontario to North America in 2026/27

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.

12:01 pm - 1:36 pmONT Ontario-SFO San Francisco

1h 35mnonstop

10:59 pm - 12:24 amSFO San Francisco-ONT Ontario

1h 25mnonstop

$75Frontier

Mon, Nov 9 - Mon, Nov 23

7:26 pm - 9:00 pmONT Ontario-SFO San Francisco

1h 34mnonstop

9:56 pm - 11:23 pmSFO San Francisco-ONT Ontario

1h 27mnonstop

$76Frontier

Fri, Dec 4 - Sun, Dec 6

1:35 pm - 3:05 pmONT Ontario-SFO San Francisco

1h 30mnonstop

6:50 pm - 8:15 pmSFO San Francisco-ONT Ontario

1h 25mnonstop

$114United Airlines

Sat, Nov 14 - Sat, Nov 14

11:20 am - 12:50 pmONT Ontario-SFO San Francisco

1h 30mnonstop

4:10 pm - 5:36 pmSFO San Francisco-ONT Ontario

1h 26mnonstop

$114United Airlines

Tue, Dec 15 - Tue, Dec 15

5:45 am - 9:25 amONT Ontario-SFO San Francisco

3h 40m1 stop Las Vegas Harry Reid Intl

10:25 am - 4:10 pmSFO San Francisco-ONT Ontario

5h 45m1 stop Phoenix Sky Harbor Intl

$131Southwest

Sat, Nov 7 - Tue, Nov 10

10:30 am - 5:20 pmONT Ontario-SFO San Francisco

6h 50m1 stop Las Vegas Harry Reid Intl

10:25 am - 4:10 pmSFO San Francisco-ONT Ontario

5h 45m1 stop Phoenix Sky Harbor Intl

$131Southwest

Sat, Dec 5 - Tue, Dec 8

11:13 am - 1:56 pmONT Ontario-SEA Seattle/Tacoma Intl

2h 43mnonstop

9:06 pm - 11:42 pmSEA Seattle/Tacoma Intl-ONT Ontario

2h 36mnonstop

$159Alaska Airlines

Wed, Oct 28 - Fri, Oct 30

6:00 am - 8:57 amONT Ontario-SEA Seattle/Tacoma Intl

2h 57mnonstop

8:22 pm - 10:59 pmSEA Seattle/Tacoma Intl-ONT Ontario

2h 37mnonstop

$159Alaska Airlines

Thu, Dec 3 - Fri, Dec 4

7:13 pm - 10:00 pmONT Ontario-SEA Seattle/Tacoma Intl

2h 47mnonstop

10:50 am - 1:38 pmSEA Seattle/Tacoma Intl-ONT Ontario

2h 48mnonstop

$163Multiple Airlines

Thu, Nov 5 - Sun, Nov 8

2:13 pm - 4:56 pmONT Ontario-SEA Seattle/Tacoma Intl

2h 43mnonstop

10:50 am - 1:38 pmSEA Seattle/Tacoma Intl-ONT Ontario

2h 48mnonstop

$163Multiple Airlines

Thu, Oct 29 - Sun, Nov 8

Cheap last minute flights

Enter your travel dates to find the best prices.

12:01 pm - 1:32 pmONT Ontario-SFO San Francisco

1h 31mnonstop

6:02 pm - 7:40 pmSFO San Francisco-ONT Ontario

1h 38mnonstop

$129Frontier

Thu, Oct 15 - Thu, Oct 15

12:01 pm - 1:32 pmONT Ontario-SFO San Francisco

1h 31mnonstop

6:02 pm - 7:40 pmSFO San Francisco-ONT Ontario

1h 38mnonstop

$131Frontier

Thu, Oct 15 - Sun, Oct 18

11:10 am - 12:43 pmONT Ontario-SFO San Francisco

1h 33mnonstop

6:50 pm - 8:15 pmSFO San Francisco-ONT Ontario

1h 25mnonstop

$219United Airlines

Wed, Oct 14 - Wed, Nov 11

4:15 pm - 9:40 pmONT Ontario-SFO San Francisco

5h 25m1 stop Las Vegas Harry Reid Intl

5:05 am - 9:20 amSFO San Francisco-ONT Ontario

4h 15m1 stop Phoenix Sky Harbor Intl

$235Southwest

Wed, Oct 14 - Wed, Nov 11

6:10 am - 3:10 pmONT Ontario-SFO San Francisco

9h 00m2 stops Phoenix Sky Harbor Intl San Diego

5:05 am - 12:10 pmSFO San Francisco-ONT Ontario

7h 05m1 stop Phoenix Sky Harbor Intl

$240Southwest

Wed, Oct 14 - Wed, Nov 11

1:24 pm - 9:52 pmONT Ontario-ORD Chicago O'Hare Intl

6h 28m1 stop Denver Intl

8:20 pm - 10:49 pmORD Chicago O'Hare Intl-ONT Ontario

4h 29mnonstop

$307United Airlines

Wed, Oct 14 - Thu, Oct 15

9:36 pm - 1:39 amONT Ontario-GDL Guadalajara Miguel Hidal

3h 03mnonstop

8:59 pm - 11:05 pmGDL Guadalajara Miguel Hidal-ONT Ontario

3h 06mnonstop

$309Volaris

Mon, Oct 12 - Thu, Oct 22

9:36 pm - 1:39 amONT Ontario-GDL Guadalajara Miguel Hidal

3h 03mnonstop

8:59 pm - 11:05 pmGDL Guadalajara Miguel Hidal-ONT Ontario

3h 06mnonstop

$311Volaris

Tue, Oct 13 - Fri, Oct 30

7:34 pm - 5:00 amONT Ontario-ORD Chicago O'Hare Intl

7h 26m1 stop Phoenix Sky Harbor Intl

6:48 am - 12:14 pmORD Chicago O'Hare Intl-ONT Ontario

7h 26m1 stop Phoenix Sky Harbor Intl

$317American Airlines

Fri, Oct 16 - Sun, Oct 18

7:34 pm - 5:00 amONT Ontario-ORD Chicago O'Hare Intl

7h 26m1 stop Phoenix Sky Harbor Intl

5:00 am - 9:10 amORD Chicago O'Hare Intl-ONT Ontario

6h 10m1 stop Phoenix Sky Harbor Intl

$317American Airlines

Sun, Oct 11 - Tue, Oct 13

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Frontier flights from Ontario to North America

Our best Frontier deals on Ontario to North America flight tickets

Frontier

Nov 9

ONT12:01 pmOntario

1h 35m

SFO1:36 pmSan Francisco

Nov 23

SFO10:59 pmSan Francisco

1h 25m

ONT12:24 amOntario

$75

Frontier

Nov 13

ONT12:01 pmOntario

1h 35m

SFO1:36 pmSan Francisco

Nov 15

SFO6:04 pmSan Francisco

1h 26m

ONT7:30 pmOntario

$76

Frontier

Nov 12

ONT12:01 pmOntario

1h 35m

SFO1:36 pmSan Francisco

Nov 12

SFO6:04 pmSan Francisco

1h 26m

ONT7:30 pmOntario

$77

United Airlines flights from Ontario to North America

Our best United Airlines deals on Ontario to North America flight tickets

United Airlines

Nov 11

ONT1:35 pmOntario

1h 30m

SFO3:05 pmSan Francisco

Nov 14

SFO4:35 pmSan Francisco

1h 26m

ONT6:01 pmOntario

$117

United Airlines

Nov 7

ONT1:35 pmOntario

1h 30m

SFO3:05 pmSan Francisco

Nov 11

SFO6:50 pmSan Francisco

1h 25m

ONT8:15 pmOntario

$119

United Airlines

Oct 14

ONT1:24 pmOntario

6h 28m

1 stop

ORD9:52 pmChicago O'Hare Intl

Oct 15

ORD8:20 pmChicago O'Hare Intl

4h 29m

ONT10:49 pmOntario

$307

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioSan Francisco

ONT Ontario - SFO San Francisco

ONTSFO

Ontario

Mon 11/9

12:01 pm-1:36 pm

Nonstop1h 35m

San Francisco

Mon 11/23

10:59 pm-12:24 am

Nonstop1h 25m

$75

OntarioSan Francisco

ONT Ontario - SFO San Francisco

ONTSFO

Ontario

Fri 12/4

7:26 pm-9:00 pm

Nonstop1h 34m

San Francisco

Sun 12/6

9:56 pm-11:23 pm

Nonstop1h 27m

$76

Quickest round-trip

OntarioSan Francisco

ONT Ontario - SFO San Francisco

ONTSFO

Ontario

Sat 11/14

1:35 pm-3:05 pm

Nonstop1h 30m

San Francisco

Sat 11/14

6:50 pm-8:15 pm

Nonstop1h 25m

$114

OntarioSan Francisco

ONT Ontario - SFO San Francisco

ONTSFO

Ontario

Tue 12/15

11:20 am-12:50 pm

Nonstop1h 30m

San Francisco

Tue 12/15

4:10 pm-5:36 pm

Nonstop1h 26m

$114

OntarioSan Francisco

ONT Ontario - SFO San Francisco

ONTSFO

Ontario

Sat 11/7

5:45 am-9:25 am

1 stop3h 40m

San Francisco

Tue 11/10

10:25 am-4:10 pm

1 stop5h 45m

$131

OntarioSan Francisco

ONT Ontario - SFO San Francisco

ONTSFO

Ontario

Sat 12/5

10:30 am-5:20 pm

1 stop6h 50m

San Francisco

Tue 12/8

10:25 am-4:10 pm

1 stop5h 45m

$131

OntarioSeattle

ONT Ontario - SEA Seattle/Tacoma Intl

ONTSEA

Ontario

Wed 10/28

11:13 am-1:56 pm

Nonstop2h 43m

Seattle/Tacoma Intl

Fri 10/30

9:06 pm-11:42 pm

Nonstop2h 36m

$159

OntarioSeattle

ONT Ontario - SEA Seattle/Tacoma Intl

ONTSEA

Ontario

Thu 12/3

6:00 am-8:57 am

Nonstop2h 57m

Seattle/Tacoma Intl

Fri 12/4

8:22 pm-10:59 pm

Nonstop2h 37m

$159

OntarioSeattle

ONT Ontario - SEA Seattle/Tacoma Intl

ONTSEA

Ontario

Thu 11/5

7:13 pm-10:00 pm

Nonstop2h 47m

Seattle/Tacoma Intl

Sun 11/8

10:50 am-1:38 pm

Nonstop2h 48m

$163

OntarioSeattle

ONT Ontario - SEA Seattle/Tacoma Intl

ONTSEA

Ontario

Thu 10/29

2:13 pm-4:56 pm

Nonstop2h 43m

Seattle/Tacoma Intl

Sun 11/8

10:50 am-1:38 pm

Nonstop2h 48m

$163

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 February is, on average, the cheapest month to fly to North America from Ontario, with most prices found around $323. If you are unable to visit North America during the month of February, then departing from Ontario during the month January is also very affordable. Most momondo users find prices during this month for around $325.

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 Tuesday. Travelers who choose to depart for North America on a Tuesday will often find tickets for as low as $431. 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 North America on Sunday is $487.

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 $396 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 $270 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	$40
Fastest flight time	1h 05m
Direct flights	Tue, Wed, Thu, Fri, Sat and Sun
Airports in North America	5,174 airports

The best one-way flight to North America from Ontario in the past 72 hours is $40. The best round-trip flight deal from Ontario to North America found on momondo in the last 72 hours is $75.

The fastest flight from Ontario to North America takes 1h 05m

Direct flights go from Ontario to North America on Tuesday, Wednesday, Thursday, Friday, Saturday and Sunday. Airlines offering direct flights are: United Airlines, Southwest and Alaska Airlines.

There are 5,174 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 10 as of October 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 (15.21% of total bookings). The next most popular plane models are Airbus A320neo (13.64%), Boeing 737 MAX 8 (11.59%), and Airbus A321-100/200 (11.52%).

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 $51	Free Cancellation	Rating 5.6 2,551 reviews	Search Frontier flights
Alaska Airlines	PriceFrom $91	Free Cancellation	Rating 7.9 13,045 reviews	Search Alaska Airlines flights
United Airlines	PriceFrom $117	Free Cancellation	Rating 7.4 10,334 reviews	Search United Airlines flights
JetBlue	PriceFrom $120	Free Cancellation	Rating 7.1 3,047 reviews	Search JetBlue flights
Delta	PriceFrom $128	Free Cancellation	Rating 7.8 8,654 reviews	Search Delta flights
Viva	PriceFrom $172	Free Cancellation	Rating 7.0 800 reviews	Search Viva flights
Southwest	PriceFrom $226	Free Cancellation	Rating 7.9 4,227 reviews	Search Southwest flights
American Airlines	PriceFrom $235	Free Cancellation	Rating 7.0 12,153 reviews	Search American Airlines flights
Volaris	PriceFrom $259	Free Cancellation	Rating 6.6 1,126 reviews	Search Volaris flights
Air Canada	PriceFrom $313	Free Cancellation	Rating 7.1 11,751 reviews	Search Air Canada 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.

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.

Start using Trips

Find my bookings

Get notified when prices go down

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

1 adult

Mon 11/9

Mon 11/16

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to North America

Popular cities

Other flights from Ontario

Other flights to North America

Airlines

Cabin classes

Complete your trip

Feeling lucky

Popular cities in North America

Flights to New Yorkfrom $67

Flights to Los Angelesfrom $38

Flights to Orlandofrom $50

Flights to Miamifrom $68

Flights to San Franciscofrom $50

Flights to Chicagofrom $55

Flights to Las Vegasfrom $44

Flights to Washington, D.C.from $46

Flights to Fort Lauderdalefrom $47

Flights to Bostonfrom $79

Flights to Atlantafrom $46

Flights to Dallasfrom $50

Cheap flights from Ontario to North America from $40

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 12/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from Ontario to North America

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

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

Frontier flights from Ontario to North America

Our best Frontier deals on Ontario to North America flight tickets

United Airlines flights from Ontario to North America

Our best United Airlines deals on Ontario to North America flight tickets

momondo Fare Finder

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