Cheap flights from Dallas to Ontario from $97 DAL, DFW → ONT

Found recently, and the cheapest we hold

What have prices looked like?

Over 49 days, 24 Sept to 11 Nov, the cheapest return we saw each day was $140 to $288.

At $408, the cheapest return found recently is above that range.

Those were the prices on those days, not today's.

Could nearby dates be cheaper?

We hold no other 0-night return fares leaving within 3 days of 15 Nov to compare.

Every date we hold

116 fares on 9 departure dates

Which month looks cheapest?

February 2027 is the cheapest month — from $140.

Found recently, and the cheapest we hold

It is also the cheapest one-way we hold, of any age.

What have prices looked like?

Over 49 days, 24 Sept to 11 Nov, the cheapest one-way we saw each day was $46 to $197.

Those were the prices on those days, not today's.

Could nearby dates be cheaper?

We hold no other one-way fares leaving within 3 days of 18 Nov to compare.

Every date we hold

9 fares on 2 departure dates

Return

Fares 14 to 29 days before departure were typically 36% lower than 0 to 6 days before departure.

From the cheapest return each day between 24 Sept and 11 Nov (49 days), grouped by how many days ahead the flight left; one adult in economy.

Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.

Prices reflect recent searches — current fares may differ.

One-way

Fares 14 to 29 days before departure were typically 28% lower than 0 to 6 days before departure.

From the cheapest one-way each day between 24 Sept and 11 Nov (49 days), grouped by how many days ahead the flight left; one adult in economy.

Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.

Prices reflect recent searches — current fares may differ.

How much is a return flight from Dallas to Ontario?

The cheapest return found recently is $408 with Frontier Airlines, 15 Nov to 15 Nov, found 2 days ago. The cheapest return we hold, of any age, is $140 with Frontier Airlines, 8 Feb 2027 to 16 Feb 2027, found 6 days ago. The cheapest return fare on each of 9 departure dates is usually $239 to $305.

How much is a one-way flight from Dallas to Ontario?

The cheapest one-way found recently is $97 with Frontier Airlines, 18 Nov, found 4 days ago.

What is the cheapest month to fly from Dallas to Ontario?

February 2027 is the cheapest month for a return, from $140, 8 Feb 2027 to 16 Feb 2027, found 6 days ago.

How far ahead should I book a flight from Dallas to Ontario?

In 49 days of prices between 24 Sept and 11 Nov, return fares 14 to 29 days before departure were typically 36% lower than 0 to 6 days before departure. One-way fares 14 to 29 days before departure were typically 28% lower than 0 to 6 days before departure.

Is there a direct flight from Dallas to Ontario?

Yes, the cheapest nonstop return found recently is $740 with American Airlines, 15 Nov to 16 Nov, found 2 days ago. The cheapest nonstop one-way found recently is $135 with Frontier Airlines, 18 Nov, found 5 days ago.

Every nonstop date from Dallas to Ontario

How long is the flight from Dallas to Ontario?

The cheapest nonstop one-way found recently, with Frontier Airlines on 18 Nov, takes 3 h 21 min from Dallas/Fort Worth International Airport (DFW) to Ontario International Airport (ONT). The cheapest one-way found recently, with Frontier Airlines on 18 Nov, takes 6 h 10 min with 1 stop.

Which airlines have the cheapest flights from Dallas to Ontario?

Between 14 Nov and 8 Feb 2027, Frontier Airlines has the cheapest return on all 9 departure dates we hold.