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Flights from Ontario to Dallas

Book direct flights from Ontario to Dallas: One way flights from $37, round trip flights from $72. Find flight deals for the next 3 months below.

      • Cheapest nonstop
        ONT 7:40 PM
        3h 5m
        Nonstop
        DFW 12:45 AM
        Ontario - Dallas | Thu, Apr 2 | Frontier Airlines
        DFW 2:58 PM
        3h 25m
        Nonstop
        ONT 4:23 PM
        Dallas - Ontario | Tue, Apr 7 | Frontier Airlines
        $72 $137
        47% off
        47% off
        $137 $72
      • ONT 5:18 PM
        3h 8m
        Nonstop
        DFW 10:26 PM
        Ontario - Dallas | Wed, Apr 8 | Frontier Airlines
        DFW 8:42 PM
        3h 44m
        Nonstop
        ONT 10:26 PM
        Dallas - Ontario | Tue, Apr 14 | Frontier Airlines
        $98 $137
        28% off
        28% off
        $137 $98
      • ONT 5:18 PM
        3h 8m
        Nonstop
        DFW 10:26 PM
        Ontario - Dallas | Tue, Apr 7 | Frontier Airlines
        DFW 8:42 PM
        3h 44m
        Nonstop
        ONT 10:26 PM
        Dallas - Ontario | Tue, Apr 14 | Frontier Airlines
        $100 $137
        27% off
        27% off
        $137 $100
      • ONT 8:15 AM
        3h 15m
        Nonstop
        DFW 1:30 PM
        Ontario - Dallas | Wed, Apr 15 | Frontier Airlines
        DFW 8:32 PM
        3h 44m
        Nonstop
        ONT 10:16 PM
        Dallas - Ontario | Sat, Apr 18 | Frontier Airlines
        $106
        23% off
        $137 $106
      • ONT 5:18 PM
        3h 8m
        Nonstop
        DFW 10:26 PM
        Ontario - Dallas | Wed, Apr 1 | Frontier Airlines
        DFW 5:45 AM
        3h 28m
        Nonstop
        ONT 7:13 AM
        Dallas - Ontario | Tue, Apr 7 | Spirit Airlines
        $112
        18% off
        $137 $112
      • ONT 7:40 PM
        3h 5m
        Nonstop
        DFW 12:45 AM
        Ontario - Dallas | Sat, Apr 11 | Frontier Airlines
        DFW 10:50 PM
        3h 39m
        Nonstop
        ONT 12:29 AM
        Dallas - Ontario | Sun, Apr 12 | Frontier Airlines
        $112
        18% off
        $137 $112
      • ONT 8:00 AM
        3h 15m
        Nonstop
        DFW 1:15 PM
        Ontario - Dallas | Sat, Apr 18 | Frontier Airlines
        DFW 8:55 PM
        3h 44m
        Nonstop
        ONT 10:39 PM
        Dallas - Ontario | Tue, Apr 21 | Frontier Airlines
        $116
        15% off
        $137 $116
      • ONT 8:15 AM
        3h 15m
        Nonstop
        DFW 1:30 PM
        Ontario - Dallas | Tue, Apr 14 | Frontier Airlines
        DFW 8:55 PM
        3h 44m
        Nonstop
        ONT 10:39 PM
        Dallas - Ontario | Tue, Apr 14 | Frontier Airlines
        $117
        15% off
        $137 $117
      • ONT 4:41 PM
        3h 1m
        Nonstop
        DFW 9:42 PM
        Ontario - Dallas | Sat, Apr 4 | Frontier Airlines
        DFW 10:30 PM
        3h 33m
        Nonstop
        ONT 12:03 AM
        Dallas - Ontario | Wed, Apr 8 | Frontier Airlines
        $120
        12% off
        $137 $120
      • ONT 5:10 PM
        3h
        Nonstop
        DFW 10:10 PM
        Ontario - Dallas | Wed, Mar 25 | Frontier Airlines
        DFW 2:58 PM
        3h 25m
        Nonstop
        ONT 4:23 PM
        Dallas - Ontario | Wed, Apr 1 | Frontier Airlines
        $123
        10% off
        $137 $123
      • ONT 1:00 PM
        17h 25m
        1 stop
        DFW Invalid Date
        Ontario - Dallas | Wed, Mar 18 | Normal Airline
        DFW 3:00 PM
        6h
        Nonstop
        ONT 4:00 PM
        Dallas - Ontario | Fri, Mar 20 | Normal Airline
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      • Cheapest nonstop
        ONT 7:40 PM
        3h 5m
        Nonstop
        DFW 12:45 AM
        Ontario - Dallas | Sat, Apr 11 | Frontier Airlines
        $37 $69
        46% off
        46% off
        $69 $37
      • ONT 5:18 PM
        3h 8m
        Nonstop
        DFW 10:26 PM
        Ontario - Dallas | Wed, Apr 1 | Frontier Airlines
        $38 $69
        45% off
        45% off
        $69 $38
      • ONT 7:40 PM
        3h 5m
        Nonstop
        DFW 12:45 AM
        Ontario - Dallas | Thu, Apr 9 | Frontier Airlines
        $42 $69
        39% off
        39% off
        $69 $42
      • ONT 7:40 PM
        3h 5m
        Nonstop
        DFW 12:45 AM
        Ontario - Dallas | Thu, Apr 2 | Frontier Airlines
        $42
        39% off
        $69 $42
      • ONT 5:10 PM
        3h
        Nonstop
        DFW 10:10 PM
        Ontario - Dallas | Wed, Mar 18 | Frontier Airlines
        $58
        16% off
        $69 $58
      • ONT 8:00 AM
        3h 15m
        Nonstop
        DFW 1:15 PM
        Ontario - Dallas | Sat, Apr 25 | Frontier Airlines
        $62
        10% off
        $69 $62
      • ONT 8:15 AM
        3h 15m
        Nonstop
        DFW 1:30 PM
        Ontario - Dallas | Wed, Apr 22 | Frontier Airlines
        $62
        10% off
        $69 $62
      • ONT 6:15 AM
        3h 3m
        Nonstop
        DFW 11:18 AM
        Ontario - Dallas | Thu, Apr 23 | Frontier Airlines
        $62
        10% off
        $69 $62
      • ONT 12:59 AM
        14h 56m
        1 stop
        DFW 5:55 PM
        Ontario - Dallas | Wed, Apr 29 | Frontier Airlines
        $49
        28% off
        $69 $49
      • ONT 12:59 AM
        16h 56m
        1 stop
        DFW 7:55 PM
        Ontario - Dallas | Tue, Apr 28 | Frontier Airlines
        $60
        13% off
        $69 $60
      • ONT 1:00 PM
        17h 25m
        1 stop
        DFW Invalid Date
        Ontario - Dallas | Wed, Mar 18 | Normal Airline
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Displayed flight fares from Ontario to Dallas are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Flight Info | Ontario to Dallas

The distance between Ontario and Dallas is approximately 1,938.82 km. Based on Trip.com's data travel demand peaks in April. The off-season for travel is February.

Cheapest one-way flight price$37
Cheapest round-trip ticket price$72
Off-season for travelFebruary
Peak season for travelApril
Flight distance1,938.82 km
Flight statistics for the Ontario–Dallas route are based on aggregated booking data from Trip.com over the past 12 months.

Frequently Asked Questions

  • What are the cheapest flights from Ontario to Dallas (ONT-DFW)?

    Based on Trip.com data, Frontier Airlines offers one-way fares as low as $37 on Cheapest nonstop routes (e.g. ONT to DFW on Sat, Apr 11), while Frontier Airlines offers Cheapest nonstop round-trips from $72 departing on Thu, Apr 2 and returning on Tue, Apr 7.
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Ontario to Dallas is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • To find best deals on flights from Ontario to Dallas, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Sat, Apr 11, with one-way flights priced at just $37.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Frontier Airlines.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for Dallas travel is around April.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Ontario to Dallas is February, when demand for travel is lower.
  • After crunching the numbers on our March flight calendar, it's currently cheapest to fly from Ontario to Dallas on March 25, 2026 with Frontier Airlines, with prices starting at $123.
  • The time difference between Dallas and Ontario is 2h.
  • Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.

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Note: Prices shown on this page are estimated lowest price and include all taxes and fees found in the last 24 hours.

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Prices displayed in this page are all-inclusive prices (incl. taxes, fuel surcharge, civil aviation development fund, etc) with all fees confirmed before payment. Fees for luggage, meals, WLAN, or other additional services are also included as shown in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page were updated within last 24 hours—even in real-time. The more popular the route, the more precise the data.

Change & Cancellation Policy

Trip.com displays flight cancellation and change policies for each flight ticket during the booking process, including fees and applicable conditions. Please check the following scenarios:
Voluntary cancellation/change:
To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy.
Cancellation/change due to a flight schedule change:
If the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.