What is the cheapest airline that flies from Dallas to Ontario?

Frontier, American Airlines, and Southwest are the most popular carriers operating from Dallas to Ontario

What airlines fly to Ontario?

Frontier, American Airlines and Spirit Airlines are the top three most popular airlines that fly to Ontario from Dallas according to our data. Frontier is the first choice among our users, with 34% of people opting to fly with this airline when traveling to Ontario. Keep in mind that there are 7 different airlines that fly to Ontario on a routine basis, so you have a few additional options to choose from.

How many flights depart from Dallas to Ontario on average per week?

94 flights are operational weekly from Dallas to Ontario as of September 2025. The most popular departure day for this route is Sun, with 18% of flights per week taking off on this day.

How many flights depart from Dallas to Ontario on average per day?

As of September 2025, there are 13 flights per day flying from Dallas to Ontario. The most common time of day flights depart is 5:00PM, with 52% of flights taking off in the afternoon.

When did momondo last update prices for flights from Dallas to Ontario Airport?

Prices for flights from Dallas to Ontario Airport were last updated today.

How many operators does momondo search for flights from Dallas to Ontario Airport?

As of September 2025, there are 5 operators available to choose from for flights from Dallas to Ontario Airport.

How old do you have to be to fly from Dallas to Ontario Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Dallas to Ontario Airport.

What documentation or ID do you need to fly to Ontario Airport?

The travel and health documents required for your trip to Ontario Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Ontario Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$56 Cheap Flights from Dallas to Ontario in 2025/26

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Cheap round-trip flights

5:10 am - 6:22 amDFW-ONT

3h 12mnonstop

8:24 am - 1:31 pmONT-DFW

3h 07mnonstop

$99Frontier

Find Deal

Sun, Nov 9 - Fri, Nov 14

2:19 pm - 3:32 pmDFW-ONT

3h 13mnonstop

8:34 am - 1:41 pmONT-DFW

3h 07mnonstop

$102Frontier

Find Deal

Thu, Oct 23 - Sat, Oct 25

2:16 pm - 3:29 pmDFW-ONT

3h 13mnonstop

12:13 pm - 5:27 pmONT-DFW

3h 14mnonstop

$103Frontier

Find Deal

Thu, Sep 25 - Fri, Sep 26

6:35 am - 7:49 amDFW-ONT

3h 14mnonstop

8:24 am - 1:31 pmONT-DFW

3h 07mnonstop

$104Frontier

Find Deal

Sat, Oct 18 - Mon, Nov 3

2:16 pm - 3:29 pmDFW-ONT

3h 13mnonstop

10:28 pm - 5:50 amONT-DFW

29h 22m2 stops

$151

Find Deal

Thu, Sep 25 - Mon, Sep 29

9:35 pm - 10:42 pmDFW-ONT

3h 07mnonstop

2:51 pm - 7:53 pmONT-DFW

3h 02mnonstop

$159American Airlines

Find Deal

Tue, Oct 28 - Sat, Nov 1

1:30 pm - 5:15 pmDAL-ONT

5h 45m1 stop

4:20 pm - 11:30 pmONT-DAL

5h 10m1 stop

$166Southwest

Find Deal

Fri, Oct 24 - Mon, Oct 27

6:45 pm - 7:50 pmDAL-ONT

3h 05mnonstop

11:30 am - 6:55 pmONT-DAL

5h 25m1 stop

$169Southwest

Find Deal

Thu, Oct 30 - Mon, Nov 3

3:56 pm - 10:22 pmDAL-ONT

8h 26m1 stop

11:36 am - 8:42 pmONT-DAL

7h 06m1 stop

$237Delta

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Fri, Oct 24 - Tue, Oct 28

3:52 pm - 10:23 pmDAL-ONT

8h 31m1 stop

11:55 am - 9:07 pmONT-DAL

7h 12m1 stop

$279Delta

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Tue, Sep 30 - Fri, Oct 3

Southwest flights from Dallas to Ontario

Our best Southwest deals on Dallas to Ontario flight tickets

Southwest

Oct 24

DAL1:30 pmDallas Love Field

5h 45m

1 stop

ONT5:15 pmOntario

Oct 27

ONT4:20 pmOntario

5h 10m

1 stop

DAL11:30 pmDallas Love Field

$166

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Southwest

Oct 30

DAL6:45 pmDallas Love Field

3h 05m

ONT7:50 pmOntario

Nov 3

ONT11:30 amOntario

5h 25m

1 stop

DAL6:55 pmDallas Love Field

$169

Find similar

Southwest

Oct 30

DAL4:50 pmDallas Love Field

5h 05m

1 stop

ONT7:55 pmOntario

Nov 3

ONT11:30 amOntario

5h 25m

1 stop

DAL6:55 pmDallas Love Field

$179

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Delta flights from Dallas to Ontario

Our best Delta deals on Dallas to Ontario flight tickets

Delta

Oct 24

DAL3:56 pmDallas Love Field

8h 26m

1 stop

ONT10:22 pmOntario

Oct 28

ONT11:36 amOntario

7h 06m

1 stop

DAL8:42 pmDallas Love Field

$237

Find similar

Delta

Sep 30

DAL3:52 pmDallas Love Field

8h 31m

1 stop

ONT10:23 pmOntario

Oct 3

ONT11:55 amOntario

7h 12m

1 stop

DAL9:07 pmDallas Love Field

$279

Find similar

Delta

Nov 18

DAL3:59 pmDallas Love Field

9h 05m

1 stop

ONT11:04 pmOntario

Nov 27

ONT11:45 amOntario

10h 13m

1 stop

DAL11:58 pmDallas Love Field

$306

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Fly from

Fly to

Route

Depart

Return

Price

DallasOntario

DFW - ONT

DFWONT

Dallas/Fort Worth

Sun 11/9

5:10 am-6:22 am

Nonstop3h 12m

Ontario

Fri 11/14

8:24 am-1:31 pm

Nonstop3h 07m

$99

DallasOntario

DFW - ONT

DFWONT

Dallas/Fort Worth

Thu 10/23

2:19 pm-3:32 pm

Nonstop3h 13m

Ontario

Sat 10/25

8:34 am-1:41 pm

Nonstop3h 07m

$102

DallasOntario

DFW - ONT

DFWONT

Dallas/Fort Worth

Thu 9/25

2:16 pm-3:29 pm

Nonstop3h 13m

Ontario

Fri 9/26

12:13 pm-5:27 pm

Nonstop3h 14m

$103

DallasOntario

DFW - ONT

DFWONT

Dallas/Fort Worth

Sat 10/18

6:35 am-7:49 am

Nonstop3h 14m

Ontario

Mon 11/3

8:24 am-1:31 pm

Nonstop3h 07m

$104

DallasOntario

DFW - ONT

DFWONT

Dallas/Fort Worth

Thu 9/25

2:16 pm-3:29 pm

Nonstop3h 13m

Ontario

Mon 9/29

10:28 pm-5:50 am

2 stops29h 22m

$151

DallasOntario

DFW - ONT

DFWONT

Dallas/Fort Worth

Tue 10/28

9:35 pm-10:42 pm

Nonstop3h 07m

Ontario

Sat 11/1

2:51 pm-7:53 pm

Nonstop3h 02m

$159

DallasOntario

DAL - ONT

DALONT

Dallas Love Field

Fri 10/24

1:30 pm-5:15 pm

1 stop5h 45m

Ontario

Mon 10/27

4:20 pm-11:30 pm

1 stop5h 10m

$166

DallasOntario

DAL - ONT

DALONT

Dallas Love Field

Thu 10/30

6:45 pm-7:50 pm

Nonstop3h 05m

Ontario

Mon 11/3

11:30 am-6:55 pm

1 stop5h 25m

$169

DallasOntario

DAL - ONT

DALONT

Dallas Love Field

Fri 10/24

3:56 pm-10:22 pm

1 stop8h 26m

Ontario

Tue 10/28

11:36 am-8:42 pm

1 stop7h 06m

$237

DallasOntario

DAL - ONT

DALONT

Dallas Love Field

Tue 9/30

3:52 pm-10:23 pm

1 stop8h 31m

Ontario

Fri 10/3

11:55 am-9:07 pm

1 stop7h 12m

$279

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How to get the cheapest flight ticket from Dallas to Ontario

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Ontario?

In general, February is the cheapest month to fly from Dallas to Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $150. If you aren’t able to travel during the month of February, then book flights to Ontario from Dallas during April instead. Flights to Ontario in April, while not as cheap as those in February, still average around $175.

What is the cheapest day to depart on your flight to Ontario?

The cheapest day to depart on your flight to Ontario is on a Thursday when prices can be found for as low as $189. This is often the case because there is less demand to fly during this day of the week. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from Dallas to Ontario for around $262.

What is the cheapest time of day to depart on your flight to Ontario?

At noon is the cheapest time of day to fly from Dallas to Ontario when you can find flight prices for as low as $205. Flying to Ontario at noon is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $240 on average. Flights to Ontario from Dallas in the evening are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest Dallas to Ontario flight route?

Fly from Dallas/Fort Worth to Ontario for the best Dallas - Ontario flight prices

How far in advance should I book a flight to Ontario?

You are more likely to see cheaper flights to Ontario from Dallas when booking weeks ahead of your departure date. In general, you can expect to find flights to Ontario for around $219 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ontario from Dallas for as low as $178 on momondo.

What cabin class options are available on Dallas to Ontario flights?

There are 3 cabin classes available to choose from on Dallas to Ontario flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap Dallas to Ontario flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Dallas to Ontario

Fastest flight time	2h 53m
Direct flights	Every day
Airports in Ontario	1 airport

The fastest flight from Dallas to Ontario takes 2h 53m

Direct flights go from Dallas to Ontario every day.

There is 1 airport near Ontario: Ontario (ONT)

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How far is Dallas to Ontario by plane?
The straight-line distance from Dallas to Ontario is 1202.4 mi. Flights usually cover this in 3h 05m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Dallas to Ontario Airport?
Prices for flights from Dallas to Ontario Airport were last updated today.
How many operators does momondo search for flights from Dallas to Ontario Airport?
As of September 2025, there are 5 operators available to choose from for flights from Dallas to Ontario Airport.
How old do you have to be to fly from Dallas to Ontario Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Dallas to Ontario Airport.
What documentation or ID do you need to fly to Ontario Airport?
The travel and health documents required for your trip to Ontario Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Ontario Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Dallas to Ontario

Compare and see reviews for airlines that fly from Dallas to Ontario with momondo

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $58	Free Cancellation	Rating 5.8 3,172 reviews	Search Frontier flights
Spirit Airlines	PriceFrom $64	Free Cancellation	Rating 6.3 8,015 reviews	Search Spirit Airlines flights
Southwest	PriceFrom $139	Free Cancellation	Rating 8.0 4,242 reviews	Search Southwest flights
Delta	PriceFrom $157	Free Cancellation	Rating 7.9 7,954 reviews	Search Delta flights
American Airlines	PriceFrom $175	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Dallas to Ontario?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Dallas to Ontario. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Dallas to Ontario with flexible booking policies on momondo?

Flights from Dallas to Ontario with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Dallas to Ontario?

Once you have performed a search for Dallas to Ontario flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Dallas to Ontario right now. Can momondo alert me if prices change?

Price alerts on flights to Ontario from Dallas are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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Cheap flights from Dallas to Los Angeles from $56

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Dallas to Los Angeles departing on 10/30. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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How to get the cheapest flight ticket from Dallas to Ontario

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Ontario?

What is the cheapest day to depart on your flight to Ontario?

What is the cheapest time of day to depart on your flight to Ontario?

What is the cheapest Dallas to Ontario flight route?

Fly from Dallas/Fort Worth to Ontario for the best Dallas - Ontario flight prices

How far in advance should I book a flight to Ontario?

What cabin class options are available on Dallas to Ontario flights?

There are 3 cabin classes available to choose from on Dallas to Ontario flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

What is the cheapest airline that flies from Dallas to Ontario?

Frontier, American Airlines, and Southwest are the most popular carriers operating from Dallas to Ontario

What airlines fly to Ontario?

How many flights depart from Dallas to Ontario on average per day?

As of September 2025, there are 13 flights per day flying from Dallas to Ontario. The most common time of day flights depart is 5:00PM, with 52% of flights taking off in the afternoon.

How many flights depart from Dallas to Ontario on average per week?

94 flights are operational weekly from Dallas to Ontario as of September 2025. The most popular departure day for this route is Sun, with 18% of flights per week taking off on this day.

Cheap Dallas to Ontario flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Dallas to Ontario

Fastest flight time

Direct flights

Airports in Ontario

How far is Dallas to Ontario by plane?

When did momondo last update prices for flights from Dallas to Ontario Airport?

How many operators does momondo search for flights from Dallas to Ontario Airport?

How old do you have to be to fly from Dallas to Ontario Airport?

What documentation or ID do you need to fly to Ontario Airport?

Best airlines flying from Dallas to Ontario

Compare and see reviews for airlines that fly from Dallas to Ontario with momondo

Why use momondo?

Why should I use momondo to find a flight deal from Dallas to Ontario?

Can I find flights from Dallas to Ontario with flexible booking policies on momondo?

How can momondo help me find flights from Dallas to Ontario?

I’m not ready to book a flight from Dallas to Ontario right now. Can momondo alert me if prices change?

An easier way to manage your Ontario trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing California