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144 € Cheap Flights from Dallas to Ontario International

Compare Dallas to Ontario International flight deals

Find the cheapest month or even day of the year to fly to Ontario International

Book the best Ontario International fare with no extra fees

Flight deals from Dallas to Ontario International Airport

Looking for a cheap last-minute deal or the best return flight from Dallas to Ontario International Airport? If you want to travel next month, return fares start from 144 €. Find the lowest prices on one-way and return tickets right here.
Ontario.144 € per passenger.Departing Wed, 15 Apr, returning Sat, 18 Apr.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Dallas Fort Worth International on Wed, 15 Apr, arriving in Ontario International.Inbound indirect flight with Frontier Airlines, departs from Ontario International on Sat, 18 Apr, arriving in Dallas Fort Worth International.Price includes taxes and charges.From 144 €, select.
Ontario.156 € per passenger.Departing Wed, 13 May, returning Wed, 20 May.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Dallas Fort Worth International on Wed, 13 May, arriving in Ontario International.Inbound indirect flight with Frontier Airlines, departs from Ontario International on Wed, 20 May, arriving in Dallas Fort Worth International.Price includes taxes and charges.From 156 €, select.
Ontario.157 € per passenger.Departing Tue, 28 Apr, returning Tue, 5 May.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Dallas Fort Worth International on Tue, 28 Apr, arriving in Ontario International.Inbound indirect flight with Frontier Airlines, departs from Ontario International on Tue, 5 May, arriving in Dallas Fort Worth International.Price includes taxes and charges.From 157 €, select.
Ontario.174 € per passenger.Departing Tue, 31 Mar, returning Thu, 9 Apr.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Dallas Fort Worth International on Tue, 31 Mar, arriving in Ontario International.Inbound indirect flight with Frontier Airlines, departs from Ontario International on Thu, 9 Apr, arriving in Dallas Fort Worth International.Price includes taxes and charges.From 174 €, select.
Ontario.193 € per passenger.Departing Tue, 24 Mar, returning Tue, 31 Mar.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Dallas Fort Worth International on Tue, 24 Mar, arriving in Ontario International.Inbound indirect flight with Frontier Airlines, departs from Ontario International on Tue, 31 Mar, arriving in Dallas Fort Worth International.Price includes taxes and charges.From 193 €, select.
Ontario.199 € per passenger.Departing Thu, 28 May, returning Mon, 1 Jun.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Dallas Fort Worth International on Thu, 28 May, arriving in Ontario International.Inbound indirect flight with Frontier Airlines, departs from Ontario International on Mon, 1 Jun, arriving in Dallas Fort Worth International.Price includes taxes and charges.From 199 €, select.
Ontario.213 € per passenger.Departing Thu, 7 May, returning Mon, 11 May.Return flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Dallas Fort Worth International on Thu, 7 May, arriving in Ontario International.Inbound direct flight with Frontier Airlines departs from Ontario International on Mon, 11 May, arriving in Dallas Fort Worth International.Price includes taxes and charges.From 213 €, select.
Ontario.217 € per passenger.Departing Wed, 27 May, returning Wed, 3 Jun.Return flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Dallas Fort Worth International on Wed, 27 May, arriving in Ontario International.Inbound direct flight with Frontier Airlines departs from Ontario International on Wed, 3 Jun, arriving in Dallas Fort Worth International.Price includes taxes and charges.From 217 €, select.
Ontario.222 € per passenger.Departing Wed, 3 Jun, returning Fri, 5 Jun.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Dallas Fort Worth International on Wed, 3 Jun, arriving in Ontario International.Inbound indirect flight with Frontier Airlines, departs from Ontario International on Fri, 5 Jun, arriving in Dallas Fort Worth International.Price includes taxes and charges.From 222 €, select.
Ontario.254 € per passenger.Departing Fri, 10 Apr, returning Sun, 12 Apr.Return flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Dallas Fort Worth International on Fri, 10 Apr, arriving in Ontario International.Inbound direct flight with Frontier Airlines departs from Ontario International on Sun, 12 Apr, arriving in Dallas Fort Worth International.Price includes taxes and charges.From 254 €, select.
Ontario.255 € per passenger.Departing Tue, 14 Jul, returning Tue, 21 Jul.Return flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Dallas Fort Worth International on Tue, 14 Jul, arriving in Ontario International.Inbound direct flight with Frontier Airlines departs from Ontario International on Tue, 21 Jul, arriving in Dallas Fort Worth International.Price includes taxes and charges.From 255 €, select.
Ontario.280 € per passenger.Departing Sat, 6 Jun, returning Sun, 7 Jun.Return flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Dallas Fort Worth International on Sat, 6 Jun, arriving in Ontario International.Inbound direct flight with Frontier Airlines departs from Ontario International on Sun, 7 Jun, arriving in Dallas Fort Worth International.Price includes taxes and charges.From 280 €, select.
Ontario.285 € per passenger.Departing Thu, 3 Sep, returning Mon, 7 Sep.Return flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Dallas Fort Worth International on Thu, 3 Sep, arriving in Ontario International.Inbound direct flight with Frontier Airlines departs from Ontario International on Mon, 7 Sep, arriving in Dallas Fort Worth International.Price includes taxes and charges.From 285 €, select.
Ontario.297 € per passenger.Departing Mon, 23 Mar, returning Thu, 26 Mar.Return flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Dallas Fort Worth International on Mon, 23 Mar, arriving in Ontario International.Inbound direct flight with Frontier Airlines departs from Ontario International on Thu, 26 Mar, arriving in Dallas Fort Worth International.Price includes taxes and charges.From 297 €, select.
Ontario.301 € per passenger.Departing Thu, 30 Jul, returning Sun, 2 Aug.Return flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Dallas Fort Worth International on Thu, 30 Jul, arriving in Ontario International.Inbound direct flight with Frontier Airlines departs from Ontario International on Sun, 2 Aug, arriving in Dallas Fort Worth International.Price includes taxes and charges.From 301 €, select.
Ontario.320 € per passenger.Departing Sat, 27 Jun, returning Mon, 6 Jul.Return flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Dallas Fort Worth International on Sat, 27 Jun, arriving in Ontario International.Inbound direct flight with Frontier Airlines departs from Ontario International on Mon, 6 Jul, arriving in Dallas Fort Worth International.Price includes taxes and charges.From 320 €, select.

Find the cheapest month to fly from Dallas to Ontario International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Dallas to Ontario International flights are currently cheapest in April.
Mar
from 193 €
Apr
from 144 €
May
from 156 €
Jun
from 222 €
Jul
from 255 €
Aug
from 322 €
Sep
from 285 €
Oct
from 320 €
Nov
Find prices
Dec
Find prices
Jan
Find prices
Feb
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Direct flights from Dallas to Ontario International

Dallas to Ontario International: Alternative routes

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

Ontario International

4km from central Ontario
Closest
from 144 €
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San Bernardino Norton AFB

39km from central Ontario
from 288 €
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Santa Ana John Wayne

48km from central Ontario
from 182 €
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Long Beach Municipal

54km from central Ontario
from 243 €
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Hawthorne

65km from central Ontario
from 448 €
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Burbank

67km from central Ontario
from 186 €
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Los Angeles International

71km from central Ontario
Cheapest
from 136 €
Search flights

Dallas to Ontario: Flight information

The things to know before you go.
Cheapest flight found144 €
Cheapest month to flyApril
Average flight time3 hrs, 12 mins
Most popular airlineAmerican Airlines
Average flights per week159

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

The best price we found for a return flight from Dallas to Ontario International is 144 €. 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 12 minutes is the average flight time from Dallas to Ontario International.
American Airlines, Qatar Airways and British Airways fly direct from Dallas to Ontario International.
As of March 2026, there are 318 flights per week flying from Dallas to Ontario International.
The cheapest month to fly from Dallas to Ontario International is usually April.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Dallas to Ontario International Airport on Wednesday, 15 April 2026.
Yes – the average flight time is 3 hours and 12 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 Ontario 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 Ontario is around 40 days in advance, so don’t leave your flight to the last minute.
The cheapest airline that flies to Ontario International is Frontier Airlines .

Travelling from Dallas to Ontario International Airport (ONT): What you need to know

  • Start planning your trip by checking out where you'll catch your flight from Dallas to Ontario International Airport (ONT). Explore your options for leaving from Dallas/Fort Worth International Airport (DFW) or Dallas Love Field Airport (DAL), the city's main airports.

  • 3 hours 15 minutes is the average travel time for a direct Dallas to Ontario International Airport flight.

  • Ontario is two hours behind Dallas. Ontario International Airport is located in Ontario, which is in the UTC-7 timezone.

  • Dallas/Fort Worth International Airport (DFW) to Ontario International Airport (ONT) is the most popular route. There are 43 direct flights a week to choose from. If you prefer to head out later, take the last flight with American Airlines at 11:21pm. Opt for the first DFW to ONT departure operated by Frontier Airlines at 6:05am if you want to get going earlier.

  • Give yourself enough time to make your flight from Dallas to ONT. Generally, it's best to arrive two hours before international departures and an hour ahead for domestic flights.

  • Planning to travel during a peak period like school or public holidays? Expect longer queues at security and check-in. To be on the safe side, arrive up to four hours before international flights and two hours before domestic departures.

Airports in Dallas

Dallas/Fort Worth International Airport (DFW)

  • You can take a direct flight from Dallas to Ontario International Airport (ONT) out of Dallas/Fort Worth International Airport (DFW).

  • American Airlines is a well-known carrier that operates direct flights from Dallas to Ontario International Airport departing from DFW.

  • The airline with the highest booking numbers between DFW and ONT is American Airlines.

  • American Airlines is the top-ranked carrier for punctuality on this route.

  • DFW is around 32 kilometres from central Dallas. If you're driving, catching a cab or ride-sharing from the centre, it'll take 25 minutes or so to get there, depending on the traffic. If you're planning to take public transport, expect the trip time to be around 1 hour.

  • Want an easy start to your journey? Stay near Dallas/Fort Worth International Airport. Whether you have an early flight from Dallas to Ontario International Airport or want to avoid feeling rushed, these hotels have you covered:

  • 73.22% of flights leaving from Dallas/Fort Worth International Airport land at their destination on schedule.

  • DFW is located at 2400 Aviation Dr.

Dallas Love Field Airport (DAL)

  • Think about kicking off your trip from Dallas Love Field Airport (DAL). You can book a direct Dallas to Ontario International Airport (ONT) plane ticket from this hub.

  • Southwest Airlines operates direct flights from Dallas to ONT leaving from DAL. Book your favourite window seat and get to your destination without any detours.

  • Southwest Airlines has the largest share of bookings on the DAL to ONT route.

  • Fly with Southwest Airlines if punctual service is a priority. Its flights between Dallas Love Field Airport and Ontario International Airport touch down as scheduled 80.0% of the time.

  • DAL is about 16 kilometres from central Dallas. It'll take you 20 minutes or so to get to the airport in a car from the city centre. Public transport takes approximately 50 minutes.

  • Flying out early in the morning? Think about checking in to one of these hotels near Dallas Love Field Airport the day before your Dallas to ONT flight:

  • Dallas Love Field Airport has an on-time performance rate of 76.03%. This figure reflects how often flights that leave from this airport arrive at their destination on time.

  • You'll find DAL at 8008 Cedar Springs Road.

About Ontario International Airport (ONT)

Getting from Ontario International Airport (ONT) to central Ontario

  • Central Ontario is around 5 kilometres from Ontario International Airport. Journey times by car hire or cab will vary depending on traffic conditions, so do some research before your trip.

  • When travelling by public transport, expect a journey time of about 1 hour 30 minutes.

How to find the cheapest flights from Dallas to Ontario International Airport (ONT)

  • The lowest price we've found for a one-way ticket from Dallas to Ontario International Airport is 71 €. For a return flight on this route, the best price is 144 €. Depending on the availability when you book, these fares may change.

  • Booking early is often the key to finding a cheap flight from Dallas to ONT. Fares tend to rise as seats fill up, so the closer you get to departure, the more you'll likely spend.

  • Cheap Dallas to Ontario International Airport tickets are easier to find if you're not locked into specific dates. Use the 'Whole month' search function to compare fares throughout the month and then pick the cheapest day.

  • There's no need to check every day to find out if fares have dropped when you create a Price Alert. We'll let you know as soon as a new deal shows up on plane tickets from Dallas to ONT.

  • Hunt for savings on a flight from Dallas to Ontario International Airport with the help of the filters. Choose your ideal arrival and departure times, airlines and number of stops. You can also sort your results by 'Best,' 'Fastest' or 'Cheapest.'

The best time to fly from Dallas to Ontario International Airport (ONT)

  • Picture the kind of break you want when planning your trip dates. May is the quietest month to go to Ontario. August is when most people book flights from Dallas to Ontario International Airport (ONT), which may be perfect if you enjoy travelling when it's busier.

  • Before locking in your Dallas to ONT plane ticket, consider what kind of weather you prefer. August is the warmest month in Ontario, with temperatures ranging from 15ºC (59ºF) to 35ºC (95ºF).

  • January has temperatures of between 4ºC (39ºF) and 23ºC (73ºF). Look for cheap tickets from Dallas to Ontario International Airport around that time if you want to travel in cooler conditions.

More about Ontario

  • Start your Ontario trip off on the right foot by choosing the perfect place to stay. As soon as you've booked your flight from Dallas to Ontario International Airport, explore our selection of accommodation options including:

  • There are so many things to see and do in this city, it can be hard to know where to start. Conservation Park, Citizens Business Bank Arena and Scandia are highlights which should be on every Ontario itinerary.

Explore more of the United States

  • Ontario has plenty going for it, but there are so many other corners of the United States waiting to be explored. Around 153 kilometres south of Ontario, a visit to San Diego will keep you on the move. Check out popular attractions like San Diego Zoo, San Diego Balboa Park and USS Midway Museum.

  • If you're interested in discovering another major stop in the United States, head for Bakersfield, roughly 193 kilometres north-west of Ontario. Kern County Museum, Dr. Martin Luther King, Jr. Park and BAPS Shri Swaminarayan Mandir are the start of reasons to visit.

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