Cheap flights from Ontario (ONT) to North America from $29

This is the cheapest one-way flight price, found on 9/20. Prices may vary by date and flight preferences.
ONT — LAX
sep. 26 — oct. 31

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

Users have found that booking a flight from Ontario to North America at least 61 days early can save you up to 48% on average compared to booking a flight this week. If booking 61 days before your flight isn’t an option for you, users have found flights from Ontario to North America for as little as $453 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $594 for flights departing within the next 3 days.

What is the cheapest month to fly from Ontario to North America?

Flights from Ontario to North America lean towards being more expensive in June. Prices are generally better when you fly from Ontario to North America in January, with the cheapest ticket starting at $179.

When is the cheapest time to fly from Ontario to North America (ONT - NA)?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ontario to North America as you normally would.

Cheap United Airlines flights from Ontario to North America

Cheap Frontier flights from Ontario to North America

Cheap Ontario to North America flights in September & October 2023

The best prices found for ONT to North America flights for September, October

Ontario to North America 2023 flight deals

Cheap flights to North America from Ontario found for this year

Non-stop flights to North America from Ontario

Save time with Ontario to North America direct flight deals

Ontario to North America flights leaving soon

Late deals on return flights to North America from Ontario, departing today and this week

One-way flights to North America from Ontario

The cheapest one-way flights from Ontario to North America

Find flights from Ontario to North America within your budget

Use the slider to find flights from Ontario to North America that fit your budget.

Fly from

Any airport

Fly to

Any airport

Budget

$40 - $108

Route

Depart

Return

Price

OntarioLas Vegas Harry Reid Intl

ONT - LAS

ONTLAS

Ontario

mar. 10/10

Nonstop1h 16m

Las Vegas Harry Reid Intl

mar. 10/17

Nonstop1h 05m

OntarioSan Francisco

ONT - SFO

ONTSFO

Ontario

mié. 10/25

Nonstop1h 32m

San Francisco

sáb. 10/28

Nonstop1h 26m

OntarioDenver Intl

ONT - DEN

ONTDEN

Ontario

mié. 11/1

Nonstop2h 24m

Denver Intl

mar. 11/7

Nonstop2h 31m

OntarioDenver Intl

ONT - DEN

ONTDEN

Ontario

sáb. 10/14

Nonstop2h 22m

Denver Intl

mar. 10/17

Nonstop2h 31m

OntarioLas Vegas Harry Reid Intl

ONT - LAS

ONTLAS

Ontario

sáb. 10/7

Nonstop1h 16m

Las Vegas Harry Reid Intl

lun. 10/9

Nonstop1h 10m

OntarioLas Vegas Harry Reid Intl

ONT - LAS

ONTLAS

Ontario

sáb. 12/9

1 stop6h 02m

Las Vegas Harry Reid Intl

dom. 12/10

Nonstop1h 08m

OntarioSeattle/Tacoma Intl

ONT - SEA

ONTSEA

Ontario

mié. 10/25

Nonstop2h 52m

Seattle/Tacoma Intl

mié. 10/25

Nonstop2h 28m

OntarioSeattle/Tacoma Intl

ONT - SEA

ONTSEA

Ontario

mar. 10/17

Nonstop2h 54m

Seattle/Tacoma Intl

mar. 10/24

Nonstop2h 46m

OntarioLas Vegas Harry Reid Intl

ONT - LAS

ONTLAS

Ontario

dom. 10/1

Nonstop1h 00m

Las Vegas Harry Reid Intl

lun. 10/2

Nonstop1h 00m

Flights are sorted by cheapest first

Deals found on 9/21

Reviews of airlines servicing North America

Alaska Airlines
8.1
Very good
1,393 reviews

Food

7.2

Comfort

8.0

Boarding

8.3

Crew

8.6

Entertainment

7.2

Overall

8.1

Reviews

1 / 10

Flight departed on time and landed a little early. Friendly staff, and they did two passes with drinks and complimentary snacks.

Alaska Airlines
8.1
Very good
1,393 reviews
Alaska Airlines
8.1
Very good
1,393 reviews

Food

7.2

Comfort

8.0

Boarding

8.3

Crew

8.6

Entertainment

7.2

Overall

8.1

Reviews

1 / 10

Flight departed on time and landed a little early. Friendly staff, and they did two passes with drinks and complimentary snacks.

Delta
7.9
Good
3,016 reviews
Alaska Airlines
8.1
Very good
1,393 reviews

Food

7.2

Comfort

8.0

Boarding

8.3

Crew

8.6

Entertainment

7.2

Overall

8.1

Reviews

1 / 10

Flight departed on time and landed a little early. Friendly staff, and they did two passes with drinks and complimentary snacks.

Hawaiian Airlines
7.7
Good
782 reviews
Alaska Airlines
8.1
Very good
1,393 reviews

Food

7.2

Comfort

8.0

Boarding

8.3

Crew

8.6

Entertainment

7.2

Overall

8.1

Reviews

1 / 10

Flight departed on time and landed a little early. Friendly staff, and they did two passes with drinks and complimentary snacks.

Southwest
7.6
Good
1,519 reviews
Alaska Airlines
8.1
Very good
1,393 reviews

Food

7.2

Comfort

8.0

Boarding

8.3

Crew

8.6

Entertainment

7.2

Overall

8.1

Reviews

1 / 10

Flight departed on time and landed a little early. Friendly staff, and they did two passes with drinks and complimentary snacks.

United Airlines
7.4
Good
1,887 reviews
Alaska Airlines
8.1
Very good
1,393 reviews

Food

7.2

Comfort

8.0

Boarding

8.3

Crew

8.6

Entertainment

7.2

Overall

8.1

Reviews

1 / 10

Flight departed on time and landed a little early. Friendly staff, and they did two passes with drinks and complimentary snacks.

Related info for your journey

Useful info, stats and facts about Ontario to North America flights.

What airport do you fly from for flights from Ontario to North America?

Most people fly from Ontario (ONT) if they book a flight from Ontario to North America. Ontario is conveniently located just 3.1 mi from Ontario’s city center.

Can I find flights from Ontario to North America for under $100 on Cheapflights?

Yes, there are multiple flights from Ontario to North America for under $100. The cheapest flight booked recently is on Frontier for just $40, but on average you can expect to pay $45.

Are there nonstop flights from Ontario to North America for under $100 on Cheapflights?

Cheapflights has at least 20 direct flights from Ontario to North America under $100. A good price for a nonstop flight from Ontario to North America is less than $63.

Are there last-minute flights available from Ontario to North America for under $100?

There are currently 20+ open flights from Ontario to North America within the next 7 days for less than $100.

What are the most popular routes from Ontario to North America?

What does ONT to LAX mean?

ONT and LAX are unique codes to identify airports used in the aviation industry. They are defined by IATA (International Air Transport Association) and are commonly called IATA codes. ONT to LAX refers to a flight route from Ontario Airport to Los Angeles Airport. While you’re still figuring out your travel plans, it’s not a bad idea to learn the names and codes of other airports around these areas: San Francisco Airport (SFO), Miami Airport (MIA), Boston Logan Intl Airport (BOS), New York John F Kennedy Intl Airport (JFK), Las Vegas Harry Reid Intl Airport (LAS).

Destination points for flights from Ontario to North America

Select to see more specific information for flights from Ontario to all places in North America

Top 10 airlines flying from Ontario to North America

The chart below displays the airlines Cheapflights users traveling from Ontario to North America choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$22Average$187FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights
Breeze AirwaysCheapest$29Average$174FlexibilityNo cancel feeOn-timeN/A
Search Breeze Airways flights
FrontierCheapest$34Average$182FlexibilityNo cancel feeOn-time62%
Search Frontier flights
JetBlueCheapest$39Average$311FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
United AirlinesCheapest$49Average$441FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
DeltaCheapest$52Average$364FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Ravn AlaskaCheapest$74Average$138FlexibilityNo cancel feeOn-timeN/A
Search Ravn Alaska flights
Alaska AirlinesCheapest$83Average$393FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
VivaAerobusCheapest$121Average$383FlexibilityNo cancel feeOn-timeN/A
Search VivaAerobus flights
American AirlinesCheapest$177Average$442FlexibilityNo cancel feeOn-time71%
Search American Airlines flights

Hourly flight availability from Ontario to North America

See what time of day planes typically take off from Ontario to North America
5%of flight departuresEarly morningMidnight to 6 am
55%of flight departuresMorning6 am to noon
16%of flight departuresAfternoonNoon to 6 pm
24%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM
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