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Cheap Flights from Ontario International (ONT) to Dallas Fort Worth International (DFW)

Compare Ontario International to Dallas Fort Worth International flight deals

Find the cheapest month or even day of the year to fly to Dallas Fort Worth International

Book the best Dallas Fort Worth International fare with no extra fees

Flight deals from Ontario International to Dallas Fort Worth International

Looking for a cheap last-minute deal or the best return flight from Ontario International Airport to Dallas Fort Worth International Airport? If you want to travel next month, return fares start from £76. Find the lowest prices on one-way and return tickets right here.
Dallas.£42 per passenger.Departing Wed, 1 Jul.One-way flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Ontario International on Wed, 1 Jul, arriving in Dallas Fort Worth International.Price includes taxes and charges.From £42, select.
Dallas.£44 per passenger.Departing Wed, 5 Aug.One-way flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Ontario International on Wed, 5 Aug, arriving in Dallas Fort Worth International.Price includes taxes and charges.From £44, select.
Dallas.£61 per passenger.Departing Sat, 5 Sep.One-way flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Ontario International on Sat, 5 Sep, arriving in Dallas Fort Worth International.Price includes taxes and charges.From £61, select.
Dallas.£73 per passenger.Departing Tue, 23 Jun.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Ontario International on Tue, 23 Jun, arriving in Dallas Fort Worth International.Price includes taxes and charges.From £73, select.
Dallas.£85 per passenger.Departing Tue, 6 Oct.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Ontario International on Tue, 6 Oct, arriving in Dallas Fort Worth International.Price includes taxes and charges.From £85, select.
Dallas.£94 per passenger.Departing Sat, 10 Oct.One-way flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Ontario International on Sat, 10 Oct, arriving in Dallas Fort Worth International.Price includes taxes and charges.From £94, select.
Dallas.£99 per passenger.Departing Thu, 5 Nov.One-way flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Ontario International on Thu, 5 Nov, arriving in Dallas Fort Worth International.Price includes taxes and charges.From £99, select.
Dallas.£103 per passenger.Departing Tue, 30 Jun.One-way flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Ontario International on Tue, 30 Jun, arriving in Dallas Fort Worth International.Price includes taxes and charges.From £103, select.
Dallas.£110 per passenger.Departing Sat, 12 Dec.One-way flight with Alaska Airlines.Outbound indirect flight with Alaska Airlines, departs from Ontario International on Sat, 12 Dec, arriving in Dallas Fort Worth International.Price includes taxes and charges.From £110, select.
Dallas.£142 per passenger.Departing Thu, 22 Apr.One-way flight with Alaska Airlines.Outbound indirect flight with Alaska Airlines, departs from Ontario International on Thu, 22 Apr, arriving in Dallas Fort Worth International.Price includes taxes and charges.From £142, select.
Dallas.£151 per passenger.Departing Sat, 6 Feb.One-way flight with Alaska Airlines.Outbound indirect flight with Alaska Airlines, departs from Ontario International on Sat, 6 Feb, arriving in Dallas Fort Worth International.Price includes taxes and charges.From £151, select.

Find the cheapest month to fly from Ontario International to Dallas Fort Worth International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Ontario International to Dallas Fort Worth International flights are currently cheapest in July.
Jun
from £73
Jul
from £42
Aug
from £44
Sep
from £61
Oct
from £85
Nov
from £99
Dec
from £110
Jan
Find prices
Feb
from £151
Mar
Find prices
Apr
from £142
May
Find prices

Direct flights from Ontario International to Dallas Fort Worth International

Ontario International to Dallas Fort Worth International: Alternative routes

Compare routes from Ontario International to Dallas below. You may find an airport to fly into that's cheaper, faster, or easier than Dallas Fort Worth International.

Dallas Love Field

4 miles from central Dallas
Closest
from £105
Search flights

Dallas Fort Worth International

15 miles from central Dallas
Cheapest
from £42
Search flights

Fort Worth

33 miles from central Dallas
Search flights

Ontario to Dallas: Flight information

The things to know before you go.
Cheapest flight found£42
Cheapest month to flyJuly
Average flight time3 hrs, 7 mins
Most popular airlineAmerican Airlines
Average flights per week181

Finding cheap flights from Ontario International to Dallas Fort Worth International: Frequently asked questions

The best price we found for a return flight from Ontario International to Dallas Fort Worth International is £43. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
3 hours and 7 minutes is the average flight time from Ontario International to Dallas Fort Worth International.
American Airlines, Qatar Airways and British Airways fly direct from Ontario International to Dallas Fort Worth International.
As of June 2026, there are 181 flights per week flying from Ontario International to Dallas Fort Worth International.
The cheapest month to fly from Ontario International to Dallas Fort Worth International is usually August.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Ontario International Airport to Dallas Fort Worth International Airport on Wednesday, 5 August 2026.
Yes – the average flight time is 3 hours and 7 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Dallas Fort Worth International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Dallas is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Frontier Airlines offers the cheapest flight tickets to Dallas Fort Worth International.

Flying from Ontario International Airport (ONT) to Dallas/Fort Worth International Airport (DFW): what you need to know

  • Book a direct flight from Ontario International Airport to Dallas/Fort Worth International Airport and you'll be in the air for an average of 3 hours 5 minutes.

  • Dallas is two hours ahead of Ontario and observes the UTC-5 timezone.

  • Every week, there are 61 Ontario International Airport to Dallas/Fort Worth International Airport flights. If you prefer to get going as soon as possible, jump on the 00:59 American Airlines flight. If you're eager to make the most of your time before you fly, the last departure is at 23:59 with American Airlines.

  • Arrive at the airport on time so you don't miss your ONT to DFW flight. Be there at least two hours ahead for international flights and an hour early for domestic departures to avoid a last-minute sprint to the gate.

  • Flying during a peak month like August? Major public holidays and other popular seasons can lead to longer lines at airport checkpoints. Be extra cautious and arrive up to four hours ahead of an international flight and two hours before domestic departures.

  • Jetting into Dallas (and then seeing more of United States!) is a snap with American Airlines. This popular carrier offers direct flights from Ontario International Airport to Dallas/Fort Worth International Airport.

  • Most travellers choose to fly with American Airlines on this route.

  • With 79.01% of services landing on schedule, American Airlines is the most punctual carrier operating ONT to DFW flights.

  • We make it simple to book a flight with a stopover. To see your options for tickets from Ontario International Airport to Dallas/Fort Worth International Airport, deselect 'Direct flights only.' Then, pick a flight offering a stop long enough to visit the city of your choice. Popular stopovers between ONT and DFW include:

    • Phoenix Sky Harbour International Airport

    • Harry Reid Airport (formerly McCarran Airport)

    • Denver International Airport

How to find the cheapest flights from Ontario International Airport (ONT) to Dallas/Fort Worth International Airport (DFW)

  • The lowest price we've found for a one-way Ontario International Airport to Dallas/Fort Worth International Airport flight is £42. A return ticket right now is £43. Depending on the availability when you book, these fares could change.

  • Score cheap tickets from ONT to DFW by booking six months ahead. According to our research, that's the sweet spot for finding a bargain.

  • The cheapest month for flights from Ontario International Airport to Dallas/Fort Worth International Airport is May. Use the 'Whole month' tool to find the lowest airfares if you have flexible dates.

  • You won't have to check every day to find out if fares have gone down when you create a Price Alert. We'll update you the moment there's a new deal on cheap flights from ONT to DFW.

  • Secure the ideal flight for you with the help of the filters. To see the 'Fastest,' 'Cheapest' or 'Best' flights from Ontario International Airport to Dallas/Fort Worth International Airport, use the 'Sort by' tool. You can also filter by airline, arrival and departure times, and number of stops.

Handy information about Ontario International Airport (ONT)

  • ONT is located at 2900 E. Airport Drive.

  • 83.6% of flights leaving Ontario International Airport arrive at their destination on time. With its impressive on-time stats, delays are unlikely when taking off from ONT.

  • Central Ontario to Ontario International Airport is approximately 4 miles. Depending on traffic, it'll take you about 10 minutes to get there if you're ride-sharing, catching a cab or driving.

  • Catching public transport? Expect a trip time of around 1 hour 30 minutes.

  • Get your trip off to a relaxed start by staying near ONT. Whether you've booked an early flight from Ontario International Airport to Dallas/Fort Worth International Airport or want to avoid feeling rushed, these stays are the answer:

Arriving at Dallas/Fort Worth International Airport (DFW)

Getting from Dallas/Fort Worth International Airport (DFW) to central Dallas

  • DFW is located at International Pkwy.

  • From Dallas/Fort Worth International Airport, Dallas is approximately 20 miles away. It takes around 25 minutes to reach the centre by car.

  • Getting to the centre by public transport will take you around 3 hours 55 minutes.

When to fly to Dallas/Fort Worth International Airport (DFW)

  • July is the most popular month for flights from Ontario International Airport to Dallas/Fort Worth International Airport. To escape the crowds, travel to Dallas in February.

  • Lock in your flight from Ontario International Airport to Dallas/Fort Worth International Airport for August if you'd like to go to Dallas during its warmest month. You can expect temperatures of between 24ºC (75ºF) and 41ºC (106ºF).

  • If you'd rather travel in cooler conditions, look for a cheap ticket from ONT to DFW in January. Temperatures average between 1ºC (34ºF) and 16ºC (61ºF) then.

Explore more of United States

  • Houston is just one of the many places in United States waiting to be explored after you've seen Dallas. Around 230 miles away to the south, its top attractions include The Houston Museum of Natural Science, The Museum of Fine Arts, Houston, Beck Building and Hermann Park.

  • Around 250 miles south-west of Dallas, San Antonio is another essential stop in United States. Get a taste of what this destination has to offer at The San Antonio River Walk, San Antonio Missions National Historical Park and San Fernando Cathedral.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.