Cheap flights from Dallas/Fort Worth Airport to Los Angeles from $126

In general, September is the cheapest month to fly from Dallas/Fort Worth Airport to Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $204. If you aren’t able to travel during the month of September, then book flights to Ontario from Dallas/Fort Worth Airport during February instead. Flights to Ontario in February, while not as cheap as those in September, still average around $224.

The cheapest day to depart on your flight to Ontario is on a Thursday when prices can be found for as low as $253. This is often the case because there is less demand to fly during this day of the week. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from Dallas/Fort Worth Airport to Ontario for around $295.

At noon is the cheapest time of day to fly from Dallas/Fort Worth Airport to Ontario when you can find flight prices for as low as $238. Flying to Ontario at noon is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $321 on average. Flights to Ontario from Dallas/Fort Worth Airport in the evening are generally more expensive because this time of day is more convenient for travelers’ schedules.

Fly from Dallas/Fort Worth to Ontario for the best Dallas/Fort Worth - Ontario flight prices

You are more likely to see cheaper flights to Ontario from Dallas/Fort Worth Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Ontario for around $285 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ontario from Dallas/Fort Worth Airport for as low as $239 on momondo.

There are 4 cabin classes available to choose from on Dallas/Fort Worth Airport to Ontario flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

You could potentially save up to 6% on your flight if you consider stops on a Dallas/Fort Worth Airport to Ontario flight.

As of August 2026, prices for Dallas/Fort Worth Airport to Ontario flights are approximately 105% more expensive when compared to flights at the same time last year.

Delta and United Airlines are the most popular carriers operating from Dallas/Fort Worth to Ontario

Frontier, American Airlines and Southwest are the top three most popular airlines that fly to Ontario from Dallas/Fort Worth Airport according to our data. Frontier is the first choice among our users, with 49% of people opting to fly with this airline when traveling to Ontario. Keep in mind that there are 7 different airlines that fly to Ontario on a routine basis, so you have a few additional options to choose from.

As of August 2026, 14 flights take off from Dallas/Fort Worth Airport and land in Ontario each day. The most common flight departure time for this route is 9:00PM, with 35% of daily flights taking off at noon.

102 flights are operational weekly from Dallas/Fort Worth Airport to Ontario as of August 2026. The most popular departure day for this route is Tue, with 16% of flights per week taking off on this day.