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Ontario

$59+ Cheap flights from Dallas to Ontario (ONT)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/15. Fares are subject to change and may not be available on all flights or dates of travel.
DFW — ONT
feb. 3 — feb. 101
lun. 2/3
lun. 2/10
1 adult, Economy
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The best prices from Dallas to Ontario are usually found in September or February, booked 74 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday

Cheap flight deals from Dallas to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Dallas (A78) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated enero 29, 2025.

Round-trip from

$116
(Gotogate)

One-way from

$59
(Cheapflightsfares)

Popular in

July

Cheapest in

September

Average price

$275
From Dallas to Ontario
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One-way flight from Dallas to Ontario
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Highest demand for flights based on searches. 8% potential increase in price ($18 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in January 2025
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Find flight deals from Dallas to Ontario

Cheapest flights from Dallas to Ontario
Explore the most affordable flight options available from Dallas to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on enero 29, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 2/129:43 amDFW - ONT
1 stop6h 00mFrontier
sáb. 2/1512:59 amONT - DFW
1 stop5h 39mFrontier
Deal found 1/28$117
This United Airlines deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 3/13:50 pmDFW - ONT
1 stop8h 09mUnited Airlines
mar. 3/45:05 amONT - DFW
2 stops10h 41mUnited Airlines
Deal found 1/29$204
This Travelocity deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 2/286:05 amDFW - ONT
1 stop6h 20mMultiple Airlines
mar. 3/46:00 amONT - DFW
1 stop8h 51mMultiple Airlines
Deal found 1/28$224
This Delta deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 3/1112:40 pmDFW - ONT
1 stop5h 54mDelta
mar. 3/181:30 pmONT - DFW
1 stop5h 43mDelta
Deal found 1/29$237
This Delta deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 2/185:17 pmDAL - ONT
1 stop7h 35mDelta
mié. 3/51:10 pmONT - DAL
1 stop7h 07mDelta
Deal found 1/28$237
This American Airlines deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 2/209:00 pmDFW - ONT
Nonstop3h 16mAmerican Airlines
mié. 2/266:59 amONT - DFW
Nonstop2h 52mAmerican Airlines
Deal found 1/28$264
This Southwest deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 2/287:55 pmDAL - ONT
Nonstop3h 20mSouthwest
mar. 3/410:55 amONT - DAL
1 stop5h 10mSouthwest
Deal found 1/28$274
This Alaska Airlines deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 2/247:29 pmDAL - ONT
1 stop17h 33mAlaska Airlines
mié. 2/266:00 amONT - DAL
1 stop10h 29mAlaska Airlines
Deal found 1/27$300

Find flights from Dallas to Ontario within your budget

Customize your flight search to find flights from Dallas to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated enero 29, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

DallasOntario

DFW - ONT

DFWONT

Dallas/Fort Worth

mié. 2/12

4:30 pm-5:58 pm

Nonstop3h 28m

Ontario

dom. 2/16

7:18 pm-12:16 am

Nonstop2h 58m

$117

DallasOntario

DFW - ONT

DFWONT

Dallas/Fort Worth

sáb. 3/1

3:50 pm-9:59 pm

1 stop8h 09m

Ontario

mar. 3/4

5:05 am-5:46 pm

2 stops10h 41m

$204

DallasOntario

DFW - ONT

DFWONT

Dallas/Fort Worth

vie. 2/28

6:05 am-10:25 am

1 stop6h 20m

Ontario

mar. 3/4

6:00 am-4:51 pm

1 stop8h 51m

$224

DallasOntario

DFW - ONT

DFWONT

Dallas/Fort Worth

mar. 2/18

8:38 am-10:01 am

Nonstop3h 23m

Ontario

mar. 2/25

6:59 am-11:51 am

Nonstop2h 52m

$229

DallasOntario

DFW - ONT

DFWONT

Dallas/Fort Worth

mar. 3/11

12:40 pm-4:34 pm

1 stop5h 54m

Ontario

mar. 3/18

1:30 pm-9:13 pm

1 stop5h 43m

$237

DallasOntario

DAL - ONT

DALONT

Dallas Love Field

mar. 2/18

5:17 pm-10:52 pm

1 stop7h 35m

Ontario

mié. 3/5

1:10 pm-10:17 pm

1 stop7h 07m

$237

DallasOntario

DAL - ONT

DALONT

Dallas Love Field

vie. 2/28

7:55 pm-9:15 pm

Nonstop3h 20m

Ontario

mar. 3/4

10:55 am-6:05 pm

1 stop5h 10m

$274

DallasOntario

DAL - ONT

DALONT

Dallas Love Field

lun. 2/24

7:29 pm-11:02 am

1 stop17h 33m

Ontario

mié. 2/26

6:00 am-6:29 pm

1 stop10h 29m

$300

DallasOntario

DFW - ONT

DFWONT

Dallas/Fort Worth

sáb. 2/15

5:41 pm-7:09 pm

Nonstop3h 28m

$59

DallasOntario

DAL - ONT

DALONT

Dallas Love Field

mar. 3/11

7:15 pm-8:35 pm

Nonstop3h 20m

$90

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/29

Showing 1-10 of 16 results
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Best time to book a flight from Dallas to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Dallas with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Dallas to Ontario

Get recent, data-driven insights about flights from Dallas to Ontario including ideal travel times, pricing trends, and more.

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

Use this chart to determine the optimal time to book a round-trip flight from Dallas to Ontario. Price data was last updated on January 24, 2025.

The best time to book flights from Dallas to Ontario is 74 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Dallas to Ontario?

Currently, August is the cheapest month in which you can book a flight from Dallas to Ontario (average of $246). Flying from Dallas to Ontario in March is currently the most expensive (average of $310). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from DFW to ONT?

Find hourly flight availability from Dallas to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated enero 29, 2025.

When flying from Dallas to Ontario, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 27% versus a flight in the afternoon.

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

Use this chart to determine the cheapest time to fly round-trip from Dallas to Ontario. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Dallas to Ontario flight should consider departing on Wednesday evenings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Dallas to Ontario

Explore weekly flight availability from Dallas to Ontario. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated enero 29, 2025.

The most flights from A78 to ONT are scheduled on a Monday (10 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (4 on average).

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated enero 29, 2025.
See what other customers who have flown with Southwest, Alaska Airlines and Delta from Dallas to Ontario have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,587 reviews

Boarding

8.2

Overall

8.1

Crew

8.7

Entertainment

7.7

Food

7.1

Comfort

8.1

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

Southwest
8.1
Very good
4,587 reviews
Southwest
8.1
Very good
4,587 reviews

Boarding

8.2

Overall

8.1

Crew

8.7

Entertainment

7.7

Food

7.1

Comfort

8.1

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

Alaska Airlines
8.0
Very good
9,688 reviews
Southwest
8.1
Very good
4,587 reviews

Boarding

8.2

Overall

8.1

Crew

8.7

Entertainment

7.7

Food

7.1

Comfort

8.1

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

Delta
8.0
Very good
8,456 reviews
Southwest
8.1
Very good
4,587 reviews

Boarding

8.2

Overall

8.1

Crew

8.7

Entertainment

7.7

Food

7.1

Comfort

8.1

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

United Airlines
7.4
Good
8,922 reviews
Southwest
8.1
Very good
4,587 reviews

Boarding

8.2

Overall

8.1

Crew

8.7

Entertainment

7.7

Food

7.1

Comfort

8.1

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,587 reviews

Boarding

8.2

Overall

8.1

Crew

8.7

Entertainment

7.7

Food

7.1

Comfort

8.1

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

Related info for your journey

Find useful and relevant information for your journey from Dallas to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Ontario from Dallas?

    Located just 3.1 mi from the city center, Ontario is the airport most travelers will use when flying to Ontario from Dallas. Booking flights from Dallas to Ontario (ONT) should be relatively easy as there are 7 daily inbound flights from Dallas from 5 different airlines.

  • What are the cheapest airlines flying from Dallas to Ontario round-trip?

    Frontier, at $116, was found to be the cheapest airline from Dallas to Ontario.Alternate airlines to your destination round-trip include United Airlines and Delta. These flights start at 47% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Dallas to Ontario one-way?

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $59. Southwest flights start at $90 while deals on United Airlines start at $114 one-way.

  • What are the most reliable airlines from Dallas to Ontario?

    The top 3 most reliable airlines when flying from Dallas to Ontario are Qatar Airways (74%), American Airlines (73%) and Frontier (65%).

  • What are the cheapest flights from Dallas to Ontario?

    On average you can expect to pay $211 for a flight from Dallas to Ontario. The cheapest flight overall is $52 while the most popular route, (Dallas/Fort Worth - Ontario) is currently priced at $38.

  • Can I find deals for flights from Dallas to Ontario that include hotel bookings?

    Yes. In addition to deals on Dallas to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Dallas to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dallas to Ontario.

  • Can I find deals for business class flights from Dallas to Ontario?

    Yes. Cheapflights offers flight deals from Dallas to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Dallas to Ontario?

    Currently, August is the cheapest month in which you can book a flight from Dallas to Ontario (average of $246). Flying from Dallas to Ontario in March is currently the most expensive (average of $310). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Alternative routes for Dallas to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
Dallas/Fort Worth to Las Vegas flights
Dallas/Fort Worth to Los Angeles flights
Hobby to Las Vegas flights
George Bush Intcntl to Las Vegas flights
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George Bush Intcntl to San Diego flights
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George Bush Intcntl to Santa Ana flights
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Hobby to San Jose flights
Love Field to San Jose flights
Austin to San Jose flights
Hobby to Oakland flights
Austin to Santa Ana flights
Dallas/Fort Worth to Reno flights
El Paso to Las Vegas flights
Hobby to Reno flights
Love Field to Ontario flights
Austin to Burbank flights
Hobby to Palm Springs flights
San Antonio to Ontario flights
George Bush Intcntl to Oakland flights
George Bush Intcntl to San Jose flights

Top 5 airlines flying from Dallas to Ontario

Discover the top 5 airlines that operate flights from Dallas to Ontario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated enero 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$56Average$177FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$84Average$166FlexibilityNo cancel feeOn-time65%
DeltaCheapest$157Average$317FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$171Average$483FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$190Average$360FlexibilityNo cancel feeOn-time63%
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