$50+ Flights from Ontario to Dallas

One-way flight from Ontario to Dallas

Highest demand for flights based on searches. 11% potential increase in price ($31 potential increase over avg. RT price).

Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).

Average for round-trip flights in March 2025

Find flight deals from Ontario to Dallas

Cheapest flights from Ontario to Dallas
Explore the most affordable flight options available from Ontario to Dallas. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 28, 2025.

Mon 4/216:03 pmONT - DFW

Nonstop3h 03mFrontier

Wed 4/2312:13 pmDFW - ONT

Nonstop3h 24mFrontier

Deal found 3/27

$98

Wed 5/2811:59 pmONT - DFW

Nonstop2h 57mAmerican Airlines

Tue 6/310:41 pmDFW - ONT

Nonstop3h 02mAmerican Airlines

Deal found 3/28

$199

Sat 4/199:50 amONT - DAL

Nonstop2h 55mSouthwest

Wed 4/237:00 pmDAL - ONT

Nonstop3h 15mSouthwest

Deal found 3/28

$199

Thu 5/111:46 amONT - DFW

1 stop10h 13mAlaska Airlines

Wed 5/74:12 pmDFW - ONT

1 stop9h 46mAlaska Airlines

Deal found 3/27

$229

Sat 4/266:00 amONT - DFW

1 stop9h 09mMultiple Airlines

Sat 4/269:47 pmDFW - ONT

1 stop15h 33mMultiple Airlines

Deal found 3/28

$235

Tue 4/225:45 amONT - DFW

1 stop7h 45mDelta

Wed 4/305:25 amDFW - ONT

1 stop7h 32mDelta

Deal found 3/28

$237

Wed 4/2312:07 pmONT - DAL

1 stop8h 05mDelta

Tue 4/294:00 pmDAL - ONT

1 stop8h 36mDelta

Deal found 3/28

$237

Wed 4/306:00 amONT - DAL

1 stop9h 23mAlaska Airlines

Wed 5/76:23 pmDAL - ONT

1 stop23h 09mAlaska Airlines

Deal found 3/27

$286

Best flights from Ontario to Dallas
Discover carefully curated flight deals from Ontario to Dallas that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 28, 2025.

Mon 4/216:03 pmONT - DFW

Nonstop3h 03mFrontier

Wed 4/2312:13 pmDFW - ONT

Nonstop3h 24mFrontier

Deal found 3/27

$98

Wed 5/2811:59 pmONT - DFW

Nonstop2h 57mAmerican Airlines

Tue 6/310:41 pmDFW - ONT

Nonstop3h 02mAmerican Airlines

Deal found 3/28

$199

Sat 4/269:50 amONT - DAL

Nonstop2h 55mSouthwest

Tue 4/297:00 pmDAL - ONT

Nonstop3h 15mSouthwest

Deal found 3/25

$206

Thu 5/111:46 amONT - DFW

1 stop10h 13mAlaska Airlines

Wed 5/74:12 pmDFW - ONT

1 stop9h 46mAlaska Airlines

Deal found 3/27

$229

Sat 4/266:00 amONT - DFW

1 stop9h 09mMultiple Airlines

Sat 4/269:47 pmDFW - ONT

1 stop15h 33mMultiple Airlines

Deal found 3/28

$235

Tue 4/225:45 amONT - DFW

1 stop7h 45mDelta

Wed 4/305:25 amDFW - ONT

1 stop7h 32mDelta

Deal found 3/28

$237

Wed 4/2312:07 pmONT - DAL

1 stop8h 05mDelta

Wed 4/304:00 pmDAL - ONT

1 stop8h 36mDelta

Deal found 3/26

$237

Wed 4/306:00 amONT - DAL

1 stop9h 23mAlaska Airlines

Sun 5/46:23 pmDAL - ONT

1 stop25h 07mAlaska Airlines

Deal found 3/27

$325

Last-minute flights from Ontario to Dallas
Discover last-minute flight deals from Ontario to Dallas. Data last updated March 28, 2025 and is based on user searches.

Fri 4/46:30 amONT - DAL

Nonstop2h 50mSouthwest

Sat 4/124:35 pmDAL - ONT

Nonstop3h 15mSouthwest

Deal found 3/26

$523

Fri 4/412:42 pmONT - DAL

1 stop7h 01mDelta

Sun 4/66:00 amDAL - ONT

1 stop7h 29mDelta

Deal found 3/27

$1,158

Sat 4/55:44 pmONT - DFW

2 stops9h 58mMultiple Airlines

Mon 4/75:56 pmDFW - ONT

1 stop4h 55mMultiple Airlines

Deal found 3/27

$419

Sun 4/66:00 amONT - DFW

1 stop15h 59mAlaska Airlines

Tue 4/153:48 pmDFW - ONT

1 stop10h 11mAlaska Airlines

Deal found 3/27

$421

Sun 4/66:10 amONT - DFW

1 stop8h 07mUnited Airlines

Mon 4/75:15 amDFW - ONT

2 stops11h 35mUnited Airlines

Deal found 3/26

$462

Mon 4/712:59 amONT - DFW

1 stop5h 55mFrontier

Mon 4/213:38 pmDFW - ONT

Nonstop3h 25mFrontier

Deal found 3/28

$133

Mon 4/711:33 amONT - DFW

1 stop10h 26mHawaiian Airlines

Thu 4/103:53 pmDFW - ONT

1 stop10h 06mHawaiian Airlines

Deal found 3/27

$456

Mon 4/77:17 pmONT - DAL

1 stop21h 21mAlaska Airlines

Wed 4/97:38 pmDAL - ONT

1 stop30h 21mAlaska Airlines

Deal found 3/27

$545

Mon 4/75:15 pmONT - DFW

2 stops13h 33mDelta

Mon 4/141:48 pmDFW - ONT

2 stops11h 53mDelta

Deal found 3/27

$628

Sat 4/199:50 amONT - DAL

Nonstop2h 55mSouthwest

Wed 4/237:00 pmDAL - ONT

Nonstop3h 15mSouthwest

Deal found 3/28

$199

Mon 4/216:03 pmONT - DFW

Nonstop3h 03mFrontier

Thu 4/246:30 amDFW - ONT

Nonstop3h 24mFrontier

Deal found 3/26

$98

Tue 4/225:45 amONT - DFW

1 stop7h 45mDelta

Wed 4/305:25 amDFW - ONT

1 stop7h 32mDelta

Deal found 3/28

$237

One-way flights from Ontario to Dallas
Search for one-way flight options from Ontario to Dallas. Find affordable one-way fares based on user searches. Data last updated March 28, 2025.

Tue 4/222:27 pmONT - DFW

Nonstop3h 02mFrontier

Deal found 3/27

$50

Wed 4/3011:59 pmONT - DFW

Nonstop2h 52mAmerican Airlines

Deal found 3/27

$90

Sat 4/269:50 amONT - DAL

Nonstop2h 55mSouthwest

Deal found 3/27

$90

Wed 4/306:00 amONT - DAL

1 stop9h 23mHawaiian Airlines

Deal found 3/27

$103

Wed 6/46:00 amONT - DFW

1 stop7h 38mDelta

Deal found 3/27

$119

Tue 7/1510:59 pmONT - DAL

1 stop8h 34mDelta

Deal found 3/27

$119

Sat 5/177:30 amONT - DFW

1 stop9h 45mHawaiian Airlines

Deal found 3/27

$135

Mon 5/56:00 amONT - DAL

1 stop9h 23mAlaska Airlines

Deal found 3/27

$135

Wed 6/115:55 pmONT - DFW

1 stop8h 45mAlaska Airlines

Deal found 3/27

$139

Thu 5/295:10 amONT - DFW

1 stop5h 40mUnited Airlines

Deal found 3/27

$152

Cheapflights Fare Finder

Use the filters below to find and compare flights from Ontario to Dallas that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

OntarioDallas

ONT - DFW

ONTDFW

Ontario

Mon 4/21

6:03 pm-11:06 pm

Nonstop3h 03m

Dallas/Fort Worth

Wed 4/23

12:13 pm-1:37 pm

Nonstop3h 24m

$98

OntarioDallas

ONT - DFW

ONTDFW

Ontario

Wed 5/28

11:59 pm-4:56 am

Nonstop2h 57m

Dallas/Fort Worth

Tue 6/3

10:41 pm-11:43 pm

Nonstop3h 02m

$199

OntarioDallas

ONT - DAL

ONTDAL

Ontario

Sat 4/26

9:50 am-2:45 pm

Nonstop2h 55m

Dallas Love Field

Tue 4/29

7:00 pm-8:15 pm

Nonstop3h 15m

$206

OntarioDallas

ONT - DFW

ONTDFW

Ontario

Thu 5/1

11:46 am-11:59 pm

1 stop10h 13m

Dallas/Fort Worth

Tue 5/6

4:12 pm-11:58 pm

1 stop9h 46m

$229

OntarioDallas

ONT - DFW

ONTDFW

Ontario

Sat 4/26

6:00 am-5:09 pm

1 stop9h 09m

Dallas/Fort Worth

Sat 4/26

9:47 pm-11:20 am

1 stop15h 33m

$235

OntarioDallas

ONT - DFW

ONTDFW

Ontario

Tue 4/22

5:45 am-3:30 pm

1 stop7h 45m

Dallas/Fort Worth

Wed 4/30

5:25 am-10:57 am

1 stop7h 32m

$237

OntarioDallas

ONT - DAL

ONTDAL

Ontario

Wed 4/23

12:07 pm-10:12 pm

1 stop8h 05m

Dallas Love Field

Wed 4/30

4:00 pm-10:36 pm

1 stop8h 36m

$237

OntarioDallas

ONT - DAL

ONTDAL

Ontario

Wed 4/30

6:00 am-5:23 pm

1 stop9h 23m

Dallas Love Field

Sun 5/4

6:23 pm-5:30 pm

1 stop25h 07m

$325

OntarioDallas

ONT - DFW

ONTDFW

Ontario

Tue 4/22

2:27 pm-7:29 pm

Nonstop3h 02m

$50

OntarioDallas

ONT - DFW

ONTDFW

Ontario

Wed 4/30

11:59 pm-4:51 am

Nonstop2h 52m

$90

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Showing 1-10 of 18 results

The best insider tips for Ontario to Dallas flights

Cheapflights partnered with top experts to bring you the best recommendations for your Ontario to Dallas trip

Airports

ONT

ONT offers a quick security process compared to LAX, making it ideal for weekday business travelers seeking efficiency.

DFW

Use the DART Orange Line for a convenient connection from DFW to downtown Dallas, with a station at Terminal A.

Our travel experts

Bill Fink

Expert on ONT

Chris Dong

Expert on DFW

Best time to book a flight from Ontario to Dallas

Have a flexible travel schedule? Discover the best time to fly to Dallas from Ontario 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.

Cheapflights Insights

Everything you need to know about your flight from Ontario to Dallas

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

The best time to book flights from Ontario to Dallas is 81 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 Ontario to Dallas?

Currently, August is the cheapest month in which you can book a flight from Ontario to Dallas (average of $216). Flying from Ontario to Dallas in March is currently the most expensive (average of $295). 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 ONT to DFW?

A simple way to save on the total cost of your ticket is to fly from Ontario to Dallas in the afternoon. If you’re flexible enough to do this you can expect to save up to 37% on your trip compared to booking a flight in the morning.

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

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

Weekly flight availability from Ontario to Dallas

The most flights from ONT to A78 are scheduled on a Friday (16 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (6 on average).

Rainfall in Dallas by month

In terms of precipitation, rainfall in Dallas ranges from 1.9 - 4.9 inches per month. May is typically the wettest month, when rainfall can reach 4.9 in. August is typically the driest time to visit Dallas when rainfall is around 1.9 in.

Temperature in Dallas by month

If weather is an important factor for your trip to Dallas, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 86.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 46.4 F).

Reviews of airlines servicing Dallas

See what other customers who have flown with Southwest, Alaska Airlines and Delta from Ontario to Dallas have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

8.1

Very good

Reviews

1 / 20

8.0

Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

8.1

Very good

8.1

Very good

Reviews

1 / 20

8.0

Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Alaska Airlines

8.0

Very good

9,798 reviews

8.1

Very good

Reviews

1 / 20

8.0

Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Delta

8.0

Very good

7,896 reviews

8.1

Very good

Reviews

1 / 20

8.0

Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Hawaiian Airlines

7.9

Good

2,336 reviews

8.1

Very good

Reviews

1 / 20

8.0

Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

United Airlines

7.4

Good

8,603 reviews

8.1

Very good