Cheap flights from Dallas to Ontario

One-way fares from $46 · DFW → ONT · prices found by travellers in the last 48 hours

Compare all dates Ontario → Dallas
Cheapest fare
$46

Frontier Airlines · Mon, Nov 23

Cheapest month
November

from $46

Direct flights
Yes

Frontier Airlines

Flight time
3h 21m

1,940 km

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Cheapest month to fly from Dallas to Ontario

Lowest one-way fare per person in each month. Choose a month to see every date.

  1. November 2026 Cheapest $46
  2. December 2026 $66

Cheapest dates in November 2026

The lowest fares we've seen for each day, cheapest first.

Frontier Airlines
Depart20:54 Mon, Nov 23DFW → ONT 4h 13m · 1 stop
$46one way, per person
View deal
Frontier Airlines
Depart15:17 Tue, Nov 10DFW → ONT 3h 21m · Direct
$113one way, per person
View deal
Frontier Airlines
Depart17:47 Thu, Nov 12DFW → ONT 3h 21m · Direct
$115one way, per person
View deal
Frontier Airlines
Depart10:54 Wed, Nov 18DFW → ONT 4h 23m · 1 stop
$121one way, per person
View deal
Frontier Airlines
Depart22:24 Fri, Nov 13DFW → ONT 4h 06m · 1 stop
$128one way, per person
View deal
Frontier Airlines
Depart06:15 Sun, Nov 8DFW → ONT 4h 18m · 1 stop
$175one way, per person
View deal
See every date in November 2026 →

Plan the rest of your trip to Ontario

Where to stay, what to do and getting around, from our travel partners.

Where to stay

Hotels in OntarioCompare places to stay on Booking.com Find hotels →

Things to do

Things to do in OntarioTours, attractions and day trips on Klook Explore →

Getting around

Airport transfer in OntarioPre-book a driver to meet you at arrivals, with Kiwitaxi Book a transfer → Car hire in OntarioCompare rental cars from major brands on EconomyBookings Compare cars →

About flights from Dallas to Ontario

Dallas (DFW) and Ontario (ONT) are about 1,940 km apart. Direct flights take around 3h 21m, and recent direct fares were with Frontier Airlines. Over the next few months, one-way fares start from $46, and November 2026 is currently the cheapest month to fly.

These prices come from searches travellers made in the last 48 hours, so they move quickly. If you see a good fare, it's worth booking soon. FlightsExp is free to use: you book directly with our travel partner.

Frequently asked questions

How much is a flight from Dallas to Ontario?

The cheapest one-way fare we've seen recently is $46 with Frontier Airlines, departing Monday, November 23, 2026. Over the coming months, the lowest fare in each month ranges from $46 to $66.

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

November 2026 currently has the lowest fares, from $46 one way.

Are there direct flights from Dallas to Ontario?

Yes. Recent direct fares were with Frontier Airlines.

How long is the flight from Dallas to Ontario?

A direct flight takes about 3h 21m. Dallas and Ontario are around 1,940 km apart.

Which airlines fly from Dallas to Ontario?

Recent fares on this route were with Frontier Airlines.

More cheap flights from Dallas

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