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Ontario

Cheap Business Class flights to Ontario

LAX — ONT
Mar 7 — Mar 141
Sat 3/7
Sat 3/14
1 adult, Business
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Cheap business class flights to Ontario in 2026

Find the latest flights to Ontario in 2026, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 2,558,603 searches and data were last updated on February 5, 2026.

Top Rated Airline

American Airlines

No. of Airlines

3

Arrival Airport

Los Angeles Airport
Most popular airline to fly business class with to Ontario in the past 7 days
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Airlines that offer business class options for this route
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Closest airport for this route
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Find business class flight deals to Ontario

Cheapest business class flights to Ontario
Explore the most affordable business class flight options available to Ontario. Find the lowest fares based on data from user searches, with prices last updated on February 5, 2026.

This Alaska Airlines deal was found by Cheapflights users on 2/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/278:56 pm
SEA
-
ONT
Nonstop2h 36m
Alaska Airlines
Mon 3/26:14 am
ONT
-
SEA
Nonstop2h 55m
Alaska Airlines
Deal found 2/4$427
This Alaska Airlines deal was found by Cheapflights users on 2/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/148:56 pm
SEA
-
ONT
Nonstop2h 36m
Alaska Airlines
Mon 3/1612:02 pm
ONT
-
SEA
Nonstop2h 50m
Alaska Airlines
Deal found 2/4$457
This Alaska Airlines deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/268:56 pm
SEA
-
ONT
Nonstop2h 36m
Alaska Airlines
Sun 3/16:14 am
ONT
-
SEA
Nonstop2h 55m
Alaska Airlines
Deal found 2/2$467
This Alaska Airlines deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/218:20 am
SEA
-
ONT
1 stop7h 22m
Alaska Airlines
Thu 4/2310:39 am
ONT
-
SEA
Nonstop2h 51m
Alaska Airlines
Deal found 2/3$482
This Alaska Airlines deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/33:12 pm
SEA
-
ONT
1 stop4h 02m
Alaska Airlines
Tue 3/104:02 pm
ONT
-
SEA
Nonstop2h 50m
Alaska Airlines
Deal found 2/3$487
This Alaska Airlines deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/165:10 pm
SEA
-
ONT
1 stop6h 42m
Alaska Airlines
Wed 3/187:08 pm
ONT
-
SEA
Nonstop2h 49m
Alaska Airlines
Deal found 2/3$507

Travel insights for business class flights from USA to Ontario

Get recent, data-driven insights about business class flights from USA to Ontario including ideal travel times, pricing trends, and more.

What is the cheapest month to book a Business Class flight from USA to Ontario?

Currently, September is the cheapest month in which you can book a Business Class flight from USA to Ontario (average of $179). Flying from USA to Ontario in June is currently the most expensive (average of $384). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

Frequently asked questions about Ontario business class tickets

Find answers to common questions related to business class tickets for flights to Ontario. Get information on booking, amenities, upgrade options, and more. This FAQ section was last updated on February 5, 2026.

  • How many premium cabins does Alaska Airlines have for flights to Ontario?

    Alaska Airlines currently offers a couple premium cabin classes on flights to Ontario: First Class and Business Class. Still not enough? Try taking a look at other airlines or choosing a new departing point for more cabin options.

  • What is the cheapest month to book a Business Class flight from USA to Ontario?

    Currently, September is the cheapest month in which you can book a Business Class flight from USA to Ontario (average of $179). Flying from USA to Ontario in June is currently the most expensive (average of $384). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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