Cheap flights from Ontario to Dallas from $85 ONT → DAL, DFW

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 $108 to $257.

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

Could nearby dates be cheaper?

We hold no other 7-night return fares leaving within 3 days of 9 Jan 2027 to compare.

Every date we hold

106 fares on 8 departure dates

Which month looks cheapest?

December 2026 is the cheapest month — from $163.

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 43 days, 24 Sept to 11 Nov, the cheapest one-way we saw each day was $53 to $195.

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 29 Jan 2027 to compare.

Every date we hold

17 fares on 3 departure dates

Which month looks cheapest?

January 2027 is the cheapest month — from $85.

Return

Fares 14 to 29 days before departure were typically 47% 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 60 to 89 days before departure were typically 39% lower than 0 to 6 days before departure.

From the cheapest one-way each day between 24 Sept and 11 Nov (43 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 Ontario to Dallas?

The cheapest return found recently is $180 with Frontier Airlines, 9 Jan 2027 to 16 Jan 2027, found 3 days ago. The cheapest return we hold, of any age, is $163 with Frontier Airlines, 1 Dec to 4 Dec, found 7 days ago. The cheapest return fare on each of 8 departure dates is usually $182 to $320.

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

The cheapest one-way found recently is $85 with Frontier Airlines, 29 Jan 2027, found 2 days ago. The cheapest one-way fare on each of 3 departure dates is usually $103 to $182.

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

December 2026 is the cheapest month for a return, from $163, 1 Dec to 4 Dec, found 7 days ago. January 2027 is the cheapest month for a one-way, from $85, 29 Jan 2027, found 2 days ago.

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

In 49 days of prices between 24 Sept and 11 Nov, return fares 14 to 29 days before departure were typically 47% lower than 0 to 6 days before departure. In 43 days of prices between 24 Sept and 11 Nov, one-way fares 60 to 89 days before departure were typically 39% lower than 0 to 6 days before departure.

Is there a direct flight from Ontario to Dallas?

Yes, the cheapest nonstop return found recently is $253 with Frontier Airlines, 27 Dec to 4 Jan 2027, found 3 days ago. The cheapest nonstop one-way found recently is $374 with Frontier Airlines, 29 Nov, found 4 days ago.

How long is the flight from Ontario to Dallas?

The cheapest nonstop one-way found recently, with Frontier Airlines on 29 Nov, takes 3 h 7 min from Ontario International Airport (ONT) to Dallas/Fort Worth International Airport (DFW). The cheapest one-way found recently, with Frontier Airlines on 29 Jan 2027, takes 6 h 21 min with 1 stop.

Which airlines have the cheapest flights from Ontario to Dallas?

Between 1 Dec and 27 May 2027, Frontier Airlines has the cheapest return on 6 of the 8 departure dates we hold, and Southwest Airlines on 2. Between 21 Nov and 29 Jan 2027, Frontier Airlines has the cheapest one-way on all 3 departure dates we hold.