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 day?

As of June 2026, there are 70 flights per day flying from Ontario to North America. The most common time of day flights depart is 11:00AM, with 48% of flights taking off at noon.

What airlines fly to North America?

Frontier, American 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 38% of people opting to fly with this airline when traveling to North America. Keep in mind that there are 11 different airlines that fly to North America on a routine basis, so you have a few additional options to choose from.

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

As of June 2026, 490 flights take off from Ontario and land in North America each week. The most common flight departure day for this route is Fri, with 17% 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 June 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.

$46 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.

8:58 am - 10:25 am

ONT

SFO

1h 27mnonstop

9:33 am - 11:02 am

SFO

ONT

1h 29mnonstop

$106Frontier

Th. 5, Thg. 8 6 - Th. 2, Thg. 8 10

8:58 am - 10:25 am

ONT

SFO

1h 27mnonstop

9:33 am - 11:02 am

SFO

ONT

1h 29mnonstop

$107Frontier

Th. 5, Thg. 8 6 - Th. 2, Thg. 8 10

8:58 am - 10:30 am

ONT

SFO

1h 32mnonstop

9:33 am - 11:07 am

SFO

ONT

1h 34mnonstop

$110Frontier

Th. 3, Thg. 7 28 - CN, Thg. 8 2

1:33 pm - 3:02 pm

ONT

SFO

1h 29mnonstop

9:30 pm - 11:06 pm

SFO

ONT

1h 36mnonstop

$117United Airlines

Th. 3, Thg. 12 1 - Th. 7, Thg. 12 5

11:55 am - 5:00 pm

ONT

HOU

3h 05mnonstop

8:50 pm - 10:05 pm

HOU

ONT

3h 15mnonstop

$235Southwest

Th. 7, Thg. 8 22 - Th. 3, Thg. 8 25

6:30 pm - 1:10 am

ONT

HOU

4h 40m

1 stop

9:25 pm - 10:35 pm

HOU

ONT

3h 10mnonstop

$245Southwest

Th. 7, Thg. 7 18 - Th. 3, Thg. 7 21

6:00 am - 3:26 pm

ONT

HOU

7h 26m

1 stop

5:41 am - 9:34 am

HOU

ONT

5h 53m

1 stop

$270American Airlines

Th. 4, Thg. 8 26 - Th. 2, Thg. 8 31

1:56 pm - 12:59 am

ONT

ORD

9h 03m

1 stop

8:06 pm - 10:35 pm

ORD

ONT

4h 29mnonstop

$306United Airlines

Th. 2, Thg. 8 17 - Th. 4, Thg. 8 19

12:59 pm - 11:58 pm

ONT

JFK

7h 59m

1 stop

6:54 am - 11:43 am

JFK

ONT

7h 49m

1 stop

$317American Airlines

Th. 6, Thg. 8 21 - CN, Thg. 8 30

9:31 am - 12:30 pm

ONT

HNL

5h 59mnonstop

2:56 pm - 11:16 am

HNL

ONT

17h 20m

1 stop

$448Alaska Airlines

Th. 6, Thg. 9 18 - Th. 3, Thg. 9 22

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United Airlines flights from Ontario to North America

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

United Airlines

Dec 1

ONT1:33 pmOntario

1h 29m

SFO3:02 pmSan Francisco

Dec 5

SFO9:30 pmSan Francisco

1h 36m

ONT11:06 pmOntario

$117

United Airlines

Sep 19

ONT1:56 pmOntario

1h 29m

SFO3:25 pmSan Francisco

Sep 21

SFO9:25 pmSan Francisco

1h 34m

ONT10:59 pmOntario

$149

United Airlines

Jul 22

ONT5:00 amOntario

2h 20m

DEN8:20 amDenver Intl

Jul 25

DEN6:00 amDenver Intl

7h 12m

1 stop

ONT12:12 pmOntario

$187

Frontier flights from Ontario to North America

Our best Frontier deals on Ontario to North America flight tickets

Frontier

Aug 6

ONT8:58 amOntario

1h 27m

SFO10:25 amSan Francisco

Aug 10

SFO9:33 amSan Francisco

1h 29m

ONT11:02 amOntario

$106

Frontier

Aug 6

ONT8:58 amOntario

1h 27m

SFO10:25 amSan Francisco

Aug 10

SFO9:33 amSan Francisco

1h 29m

ONT11:02 amOntario

$107

Frontier

Jul 28

ONT8:58 amOntario

1h 32m

SFO10:30 amSan Francisco

Aug 2

SFO9:33 amSan Francisco

1h 34m

ONT11:07 amOntario

$110

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

OntarioSan Francisco

ONT - SFO

ONTSFO

Ontario

Th. 5 8/6

8:58 am-10:25 am

Nonstop1h 27m

San Francisco

Th. 2 8/10

9:33 am-11:02 am

Nonstop1h 29m

$106

OntarioSan Francisco

ONT - SFO

ONTSFO

Ontario

Th. 5 8/6

8:58 am-10:25 am

Nonstop1h 27m

San Francisco

Th. 2 8/10

9:33 am-11:02 am

Nonstop1h 29m

$107

OntarioSan Francisco

ONT - SFO

ONTSFO

Ontario

Th. 3 7/28

8:58 am-10:30 am

Nonstop1h 32m

San Francisco

CN 8/2

9:33 am-11:07 am

Nonstop1h 34m

$110

OntarioSan Francisco

ONT - SFO

ONTSFO

Ontario

Th. 3 12/1

1:33 pm-3:02 pm

Nonstop1h 29m

San Francisco

Th. 7 12/5

9:30 pm-11:06 pm

Nonstop1h 36m

$117

OntarioHouston

ONT - HOU

ONTHOU

Ontario

Th. 7 8/22

11:55 am-5:00 pm

Nonstop3h 05m

Houston Hobby

Th. 3 8/25

8:50 pm-10:05 pm

Nonstop3h 15m

$235

OntarioHouston

ONT - HOU

ONTHOU

Ontario

Th. 7 7/18

6:30 pm-1:10 am

1 stop4h 40m

Houston Hobby

Th. 3 7/21

9:25 pm-10:35 pm

Nonstop3h 10m

$245

OntarioHouston

ONT - HOU

ONTHOU

Ontario

Th. 4 8/26

6:00 am-3:26 pm

1 stop7h 26m

Houston Hobby

Th. 2 8/31

5:41 am-9:34 am

1 stop5h 53m

$270

OntarioChicago

ONT - ORD

ONTORD

Ontario

Th. 2 8/17

1:56 pm-12:59 am

1 stop9h 03m

Chicago O'Hare Intl

Th. 4 8/19

8:06 pm-10:35 pm

Nonstop4h 29m

$306

OntarioNew York

ONT - JFK

ONTJFK

Ontario

Th. 6 8/21

12:59 pm-11:58 pm

1 stop7h 59m

New York John F Kennedy Intl

CN 8/30

6:54 am-11:43 am

1 stop7h 49m

$317

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Th. 6 9/18

9:31 am-12:30 pm

Nonstop5h 59m

Honolulu

Th. 3 9/22

2:56 pm-11:16 am

1 stop17h 20m

$448

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 $275. If you are unable to visit North America during the month of September, then departing from Ontario during the month August is also very affordable. Most momondo users find prices during this month for around $303.

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 Sunday. Travelers who choose to depart for North America on a Sunday will often find tickets for as low as $350. Be sure to avoid booking your departure on a Wednesday as prices are generally higher than usual. According to our data, the average ticket price to North America on Wednesday is $439.

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 $371 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 $290 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	$101
Fastest flight time	1h 05m
Direct flights	Every day
Airports in North America	5,166 airports

The best one-way flight to North America from Ontario in the past 72 hours is $101. The best round-trip flight deal from Ontario to North America found on momondo in the last 72 hours is $202.

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

Direct flights go from Ontario to North America every day.

There are 5,166 airports in North America. From Ontario there are direct flights to San Francisco (SFO).

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 June 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 (15.23% of total bookings). The next most popular plane models are Airbus A321-100/200 (13.77%), Boeing 737 MAX 8 (13.38%), and Airbus A320neo (12.13%).

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 2,870 reviews	Search Frontier flights
Alaska Airlines	PriceFrom $78	Free Cancellation	Rating 7.9 12,562 reviews	Search Alaska Airlines flights
Hawaiian Airlines	PriceFrom $88	Free Cancellation	Rating 7.8 2,826 reviews	Search Hawaiian Airlines flights
United Airlines	PriceFrom $91	Free Cancellation	Rating 7.4 9,874 reviews	Search United Airlines flights
Southwest	PriceFrom $98	Free Cancellation	Rating 7.9 4,242 reviews	Search Southwest flights
Delta	PriceFrom $102	Free Cancellation	Rating 7.8 8,425 reviews	Search Delta flights
JetBlue	PriceFrom $153	Free Cancellation	Rating 7.1 3,001 reviews	Search JetBlue flights
American Airlines	PriceFrom $184	Free Cancellation	Rating 7.1 11,744 reviews	Search American Airlines 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 in North America

Flights to New Yorkfrom $62

Flights to Los Angelesfrom $56

Flights to Orlandofrom $63

Flights to Miamifrom $78

Flights to Chicagofrom $74

Flights to San Franciscofrom $50

Flights to Las Vegasfrom $56

Flights to Washington, D.C.from $57

Flights to Bostonfrom $54

Flights to Atlantafrom $58

Flights to Fort Lauderdalefrom $59

Flights to Dallasfrom $72

Cheap flights from Ontario to North America from $46

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 8/10. 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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United Airlines flights from Ontario to North America

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

Frontier flights from Ontario to North America

Our best Frontier 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

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

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