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Cheap flights from Ontario to Dallas from $42

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Dallas departing on 10/9. 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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0 bags

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Find the cheapest flights from Ontario to Dallas

Cheap round-trip flights

Frontier Logo
4:14 pm - 9:26 pmONT-DFW
3h 12mnonstop
Frontier Logo
2:11 pm - 3:24 pmDFW-ONT
3h 13mnonstop
$72Frontier
Find Deal
jue., sep. 4 - dom., sep. 7
Frontier Logo
4:14 pm - 9:26 pmONT-DFW
3h 12mnonstop
Frontier Logo
2:11 pm - 3:24 pmDFW-ONT
3h 13mnonstop
$82Frontier
Find Deal
jue., sep. 25 - dom., sep. 28
Frontier Logo
8:09 pm - 1:24 amONT-DFW
3h 15mnonstop
Frontier Logo
9:45 am - 10:49 amDFW-ONT
3h 04mnonstop
$84Frontier
Find Deal
sáb., ago. 16 - jue., ago. 21
Frontier Logo
12:04 pm - 5:20 pmONT-DFW
3h 16mnonstop
Frontier Logo
10:10 am - 11:28 amDFW-ONT
3h 18mnonstop
$85Frontier
Find Deal
sáb., ago. 30 - vie., sep. 5
Frontier Logo
4:02 pm - 9:17 pmONT-DFW
3h 15mnonstop
Frontier Logo
8:00 am - 9:19 amDFW-ONT
3h 19mnonstop
$86Frontier
Find Deal
jue., oct. 30 - dom., nov. 2
Frontier Logo
12:18 pm - 5:32 pmONT-DFW
3h 14mnonstop
Frontier Logo
2:16 pm - 3:29 pmDFW-ONT
3h 13mnonstop
$87Frontier
Find Deal
jue., sep. 11 - jue., sep. 18
Frontier Logo
4:34 pm - 9:46 pmONT-DFW
3h 12mnonstop
Frontier Logo
2:11 pm - 3:24 pmDFW-ONT
3h 13mnonstop
$88Frontier
Find Deal
jue., oct. 2 - dom., oct. 5
Frontier Logo
12:13 pm - 5:27 pmONT-DFW
3h 14mnonstop
Frontier Logo
2:11 pm - 3:24 pmDFW-ONT
3h 13mnonstop
$89Frontier
Find Deal
vie., sep. 5 - dom., sep. 7
American Airlines Logo
6:10 am - 11:13 amONT-DFW
3h 03mnonstop
American Airlines Logo
8:53 am - 10:03 amDFW-ONT
3h 10mnonstop
$139American Airlines
Find Deal
sáb., ago. 30 - mié., sep. 3
American Airlines Logo
2:54 pm - 7:57 pmONT-DFW
3h 03mnonstop
American Airlines Logo
8:53 am - 10:04 amDFW-ONT
3h 11mnonstop
$140American Airlines
Find Deal
mié., sep. 10 - mié., sep. 24

Frontier flights from Ontario to Dallas/Fort Worth Airport

Our best Frontier deals on Ontario to Dallas/Fort Worth Airport flight tickets
Frontier
Sep 4
ONT4:14 pmOntario
3h 12m
DFW9:26 pmDallas/Fort Worth
Sep 7
DFW2:11 pmDallas/Fort Worth
3h 13m
ONT3:24 pmOntario
$72
Find similar
Frontier
Sep 25
ONT4:14 pmOntario
3h 12m
DFW9:26 pmDallas/Fort Worth
Sep 28
DFW2:11 pmDallas/Fort Worth
3h 13m
ONT3:24 pmOntario
$82
Find similar
Frontier
Aug 16
ONT8:09 pmOntario
3h 15m
DFW1:24 amDallas/Fort Worth
Aug 21
DFW9:45 amDallas/Fort Worth
3h 04m
ONT10:49 amOntario
$84
Find similar

American Airlines flights from Ontario to Dallas/Fort Worth Airport

Our best American Airlines deals on Ontario to Dallas/Fort Worth Airport flight tickets
American Airlines
Aug 30
ONT6:10 amOntario
3h 03m
DFW11:13 amDallas/Fort Worth
Sep 3
DFW8:53 amDallas/Fort Worth
3h 10m
ONT10:03 amOntario
$139
Find similar
American Airlines
Sep 10
ONT2:54 pmOntario
3h 03m
DFW7:57 pmDallas/Fort Worth
Sep 24
DFW8:53 amDallas/Fort Worth
3h 11m
ONT10:04 amOntario
$140
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Ontario to Dallas/Fort Worth Airport 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, momondo users made 832,500 searches. Data last updated julio 30, 2025.
Use the filters below to find and compare flights from Ontario to Dallas/Fort Worth Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

OntarioDallas

ONT - DFW

ONTDFW

Ontario

jue. 9/4

4:14 pm-9:26 pm

Nonstop3h 12m

Dallas/Fort Worth

dom. 9/7

2:11 pm-3:24 pm

Nonstop3h 13m

$72

OntarioDallas

ONT - DFW

ONTDFW

Ontario

jue. 9/25

4:14 pm-9:26 pm

Nonstop3h 12m

Dallas/Fort Worth

dom. 9/28

2:11 pm-3:24 pm

Nonstop3h 13m

$82

OntarioDallas

ONT - DFW

ONTDFW

Ontario

sáb. 8/16

8:09 pm-1:24 am

Nonstop3h 15m

Dallas/Fort Worth

jue. 8/21

9:45 am-10:49 am

Nonstop3h 04m

$84

OntarioDallas

ONT - DFW

ONTDFW

Ontario

sáb. 8/30

12:04 pm-5:20 pm

Nonstop3h 16m

Dallas/Fort Worth

vie. 9/5

10:10 am-11:28 am

Nonstop3h 18m

$85

OntarioDallas

ONT - DFW

ONTDFW

Ontario

jue. 10/30

4:02 pm-9:17 pm

Nonstop3h 15m

Dallas/Fort Worth

dom. 11/2

8:00 am-9:19 am

Nonstop3h 19m

$86

OntarioDallas

ONT - DFW

ONTDFW

Ontario

jue. 9/11

12:18 pm-5:32 pm

Nonstop3h 14m

Dallas/Fort Worth

jue. 9/18

2:16 pm-3:29 pm

Nonstop3h 13m

$87

OntarioDallas

ONT - DFW

ONTDFW

Ontario

jue. 10/2

4:34 pm-9:46 pm

Nonstop3h 12m

Dallas/Fort Worth

dom. 10/5

2:11 pm-3:24 pm

Nonstop3h 13m

$88

OntarioDallas

ONT - DFW

ONTDFW

Ontario

vie. 9/5

12:13 pm-5:27 pm

Nonstop3h 14m

Dallas/Fort Worth

dom. 9/7

2:11 pm-3:24 pm

Nonstop3h 13m

$89

OntarioDallas

ONT - DFW

ONTDFW

Ontario

sáb. 8/30

6:10 am-11:13 am

Nonstop3h 03m

Dallas/Fort Worth

mié. 9/3

8:53 am-10:03 am

Nonstop3h 10m

$139

OntarioDallas

ONT - DFW

ONTDFW

Ontario

mié. 9/10

2:54 pm-7:57 pm

Nonstop3h 03m

Dallas/Fort Worth

mié. 9/24

8:53 am-10:04 am

Nonstop3h 11m

$140

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Dallas from

How to get the cheapest flight ticket from Ontario to Dallas/Fort Worth Airport

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 typical price of a round-trip flight between Ontario and Dallas/Fort Worth Airport?

What is the cheapest month to fly to Dallas/Fort Worth Airport?

The cheapest month to fly to Dallas/Fort Worth Airport from Ontario is in April. Flight prices, which tend to average around $178, are often lower during this time because this is during the off-season. If you’re not able to fly to Dallas/Fort Worth Airport in April, then August is your next best option. Flight prices from Ontario to Dallas/Fort Worth Airport during August average around $189.

What is the cheapest day to depart on your flight to Dallas/Fort Worth Airport?

On average, the least expensive day to fly to Dallas/Fort Worth Airport from Ontario is on a Friday. momondo users have found tickets for Friday departures for as low as $331. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Ontario to Dallas/Fort Worth Airport for around $437.

What is the cheapest time of day to depart on your flight to Dallas/Fort Worth Airport?

Flying to Dallas/Fort Worth Airport from Ontario in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $304 when looking at flights departing in the afternoon. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $403 on average. Flights to Dallas/Fort Worth Airport from Ontario in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest Ontario to Dallas/Fort Worth flight route?

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

How far in advance should I book a flight to Dallas/Fort Worth Airport?

You are more likely to see cheaper flights to Dallas/Fort Worth Airport from Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to Dallas/Fort Worth Airport for around $233 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Dallas/Fort Worth Airport from Ontario for as low as $189 on momondo.

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

There are 4 cabin classes available to choose from on Ontario to Dallas/Fort Worth flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Ontario to Dallas/Fort Worth Airport flights?

You could potentially save up to 17% on your flight if you consider stops on a Ontario to Dallas/Fort Worth Airport flight.

How have Ontario to Dallas/Fort Worth Airport flight prices changed over time?

As of July 2025, prices for Ontario to Dallas/Fort Worth Airport flights are approximately 9% cheaper when compared to flights at the same time last year.

When to book flights from Ontario to Dallas/Fort Worth Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Dallas/Fort Worth Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Ontario to Dallas/Fort Worth Airport (ONT to DFW) flight deals and tips

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

Best Price Found

$42

Fastest flight time

2h 57m

Direct flights

Every day
The best one-way flight to Dallas/Fort Worth Airport from Ontario in the past 72 hours is $42. The best round-trip flight deal from Ontario to Dallas/Fort Worth Airport found on momondo in the last 72 hours is $72.
The fastest flight from Ontario to Dallas/Fort Worth Airport takes 2h 57m
Direct flights go from Ontario to Dallas/Fort Worth Airport every day.
Search flight deals

  • How far is Ontario to Dallas/Fort Worth by plane?

    There are 1187.9 mi between Ontario and Dallas/Fort Worth. Typically, this will take 3h 03m by plane in normal conditions.

  • When did momondo last update prices for flights from Ontario Airport to Dallas/Fort Worth Airport?

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

  • How many operators does momondo search for flights from Ontario Airport to Dallas/Fort Worth Airport?

  • How old do you have to be to fly from Ontario Airport to Dallas/Fort Worth Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Dallas/Fort Worth Airport.

  • What documentation or ID do you need to fly to Dallas/Fort Worth Airport?

    The travel and health documents required for your trip to Dallas/Fort Worth 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 Dallas/Fort Worth Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Ontario to Dallas/Fort Worth Airport?

  • What is the most popular airline from Ontario to Dallas/Fort Worth Airport?

Best airlines flying from Ontario to Dallas/Fort Worth Airport

Compare and see reviews for airlines that fly from Ontario to Dallas/Fort Worth Airport with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $80Free CancellationRating
5.9
3,237 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $83Free CancellationRating
6.3
8,048 reviews
Search Spirit Airlines flights
DeltaPriceFrom $173Free CancellationRating
8.0
7,980 reviews
Search Delta flights
American AirlinesPriceFrom $183Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
SouthwestPriceFrom $185Free CancellationRating
8.0
4,241 reviews
Search Southwest flights
Alaska AirlinesPriceFrom $225Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights

  • American Airlines Flights From Ontario to Dallas/Fort Worth Airport

    American Airlines operates around 15 flights from Ontario to Dallas/Fort Worth Airport every week. The average price of these flights found in the last 72 hours has been $342, but momondo users have found American Airlines deals from Ontario to Dallas/Fort Worth Airport from as low as $183 round-trip. American Airlines has been scored 7.2/10 in 10,000 reviews.

  • Frontier Flights From Ontario to Dallas/Fort Worth Airport

    The best Frontier deal for Ontario to Dallas/Fort Worth Airport flight tickets found on momondo in the last 72 hours was $80, round-trip. It should be noted that an average Frontier flight deal for this route in this time was higher, at $183 round-trip. Frontier operates 1 flight out of Ontario into Dallas/Fort Worth Airport in an average week, so prices vary by time and availability. 3,237 Frontier reviews by users on momondo have scored the airline at 5.9/10.

Traveling to a place near Dallas?

Book flights to Dallas if you plan to visit one of these locations
Fort Worth
Arlington
Frisco
Grapevine
Irving
Plano
Denton
Grand Prairie
Thackerville
Garland
McKinney
Durant
Rockwall
Richardson
Lewisville
Ardmore
Addison
Waxahachie
Allen
Granbury

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Ontario to Dallas for you.

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

Yes. All flights to Dallas from Ontario on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once you have performed a search for Ontario to Dallas 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 Ontario to Dallas right now. Can momondo alert me if prices change?

Price alerts on flights to Dallas from Ontario 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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