Cheap flights to Ontario

Cheap flights from United States to Ontario

from Dallas (DFW - ONT)
May 30 — Jun 5
1 stop
from $200
from Atlanta (ATL - ONT)
May 28 — Jun 5
1 stop
from $210
from Chicago (ORD - ONT)
Jul 9 — Jul 15
1 stop
from $230

Popular airlines with direct flights to Ontario

  • Southwest
    Fly to Ontario (ONT)
    • Sacramento
      Direct flights every day
      1 hr 20 min +
    • Oakland
      Direct flights every day
      1 hr 20 min +
    • Las Vegas
      Direct flights every day
      1 hr +
    • Phoenix
      Direct flights every day
      1 hr 10 min +
    • San Jose
      Direct flights every day
      1 hr 15 min +
  • Frontier
    Fly to Ontario (ONT)
    • Las Vegas
      Direct flights every day
      1 hr 7 min +
    • Denver
      Direct flights every day
      2 hr 20 min +
    • Seattle
      Direct flights every day
      2 hr 42 min +
    • Portland
      Direct flights every Mon, Thu, Fri, Sat, Sun
      2 hr 23 min +
    • Dallas
      Direct flights every Mon, Thu, Fri, Sat, Sun
      3 hr 5 min +
  • United
    Fly to Ontario (ONT)
    • San Francisco
      Direct flights every day
      1 hr 20 min +
    • Denver
      Direct flights every day
      2 hr 17 min +
    • Chicago
      Direct flights every day
      4 hr 31 min +
    • Houston
      Direct flights every day
      3 hr 20 min +
  • Volaris
    Fly to Ontario (ONT)
    • Guadalajara
      Direct flights every day
      3 hr 3 min +
    • San José del Cabo
      Direct flights every Mon, Thu, Fri, Sat, Sun
      2 hr 25 min +
    • Morelia
      Direct flights every Mon, Wed, Fri, Sun
      3 hr 25 min +
    • Leon
      Direct flights every Tue, Thu, Sat
      3 hr 17 min +
  • American
    Fly to Ontario (ONT)
    • Dallas
      Direct flights every day
      2 hr 51 min +
    • Phoenix
      Direct flights every day
      1 hr 13 min +
    • Charlotte
      Direct flights every day
      4 hr 43 min +
  • Delta
    Fly to Ontario (ONT)
    • Salt Lake City
      Direct flights every day
      1 hr 44 min +
    • Seattle
      Direct flights every day
      2 hr 45 min +
    • Atlanta
      Direct flights every day
      4 hr 15 min +

Popular airports near Ontario

  • Ontario International Airport (ONT)
    Ontario United States 11 min 2 mi
  • Los Angeles International Airport (LAX)
    Los Angeles United States 1 hr 7 min 44 mi
  • Tijuana International Airport (TIJ)
    Tijuana Mexico 2 hr 16 min 112 mi
  • San Diego International Airport (SAN)
    San Diego United States 1 hr 50 min 95 mi

When to fly to Ontario

Off-seasons section.
Off-season
Feb, Apr – Jun
Less popular and lower prices
Peak seasons section.
Peak season
Mar, Aug – Oct
Most popular and higher prices

About Ontario

Ontario is a city in California, east of Los Angeles. Cucamonga-Guasti Regional Park has lakes, picnic areas and a swim complex. The Ontario Museum of History and Art explores the area’s culture through exhibitions and film screenings. The 1894 Graber Olive House offers tours of their cannery. Concerts and sporting events are held at the huge Citizens Business Bank Arena. Several wineries are northeast of the city.

Frequently asked questions about flying to Ontario

What counts as the best airline for your flights to Ontario really depends on your individual needs. You may have a favorite carrier or a loyalty program you like, but price, convenience, and airports served also come into play. Flexibility and booking terms – Can you change flights if you want to stay longer or get a refund if you have to postpone your trip? – are also factors that help determine which airline is best to fly to Ontario.

In terms of direct flights, Southwest is the most popular, flying directly from 12 cities. Southwest flies to Ontario International Airport (ONT) .

Other popular airlines flying to Ontario are Frontier, United, Volaris, American, Delta.
  • Frontier flies directly from 7 cities. Frontier flies to Ontario International Airport (ONT) .
  • United flies directly from 4 cities. United flies to Ontario International Airport (ONT) .
  • Volaris flies directly from 4 cities. Volaris flies to Ontario International Airport (ONT) .
  • American flies directly from 3 cities. American flies to Ontario International Airport (ONT) .
  • Delta flies directly from 3 cities. Delta flies to Ontario International Airport (ONT) .
  • Southwest offers direct flights to Ontario from 12 cities. The most frequent departures are: Sacramento, Oakland, Las Vegas, Phoenix and San Jose.
  • Frontier offers direct flights to Ontario from 7 cities. The most frequent departures are: Las Vegas, Denver, Seattle, Portland and Dallas.
  • United offers direct flights to Ontario from 4 cities. The most frequent departures are: San Francisco, Denver, Chicago and Houston.
  • Volaris offers direct flights to Ontario from 4 cities. The most frequent departures are: Guadalajara, San José del Cabo, Morelia and Leon.
  • American offers direct flights to Ontario from 3 cities. The most frequent departures are: Dallas, Phoenix and Charlotte.
  • Delta offers direct flights to Ontario from 3 cities. The most frequent departures are: Salt Lake City, Seattle and Atlanta.
Ontario is a year-round destination, with mild to warm weather for much of the year. Summers (Jun–Aug) tend to be hot, while winters (Dec–Feb) are typically mild. There is a slightly higher chance of rain Jan–Apr. The Road to California (Jan) is a quilt show featuring quilting competitions, classes and exhibits. The city celebrates Independence Day (Jul 4) with a parade, picnic and fireworks display. The Route 66 Cruisin' Reunion (Sep) attracts vintage cars from around the country.
Ontario is served by only one major airport: Ontario International Airport, 2 mi away from the city center.
If you are looking to book airline tickets from United States to Ontario you have options. Some of the cheapest flights from popular cities include:
  • Frontier flight from Chicago, starting at $230 from Jul 9 to Jul 15
  • Frontier flight from Dallas, starting at $200 from May 30 to Jun 5
  • Frontier flight from Atlanta, starting at $210 from May 28 to Jun 5
  • JetBlue flight from New York, starting at $278 from Jul 17 to Jul 23
  • Frontier flight from Miami, starting at $230 from Jul 23 to Jul 29
  • United flight from Los Angeles, starting at $278 from Jun 1 to Jun 9
Of all the flights departing from popular cities in United States, the cheapest round-trip flight to Ontario starts at $200 and departs from Dallas on May 30 to Jun 5.
Finding last-minute flights to Ontario is easy on Google Flights.
Select your departure city and use the calendar to pick your preferred travel dates and find the lowest ticket prices available. You can even check for flights departing today.
To find the cheapest tickets, it’s usually best to book at least a few weeks in advance for domestic flights and a few months in advance for cheap international flights.
You can find great flight deals to Ontario on Google Flights.
Just enter your departure city, choose Ontario in the destination field, and click Search .
You can filter the results to see only nonstop flights or flights under a certain price to more easily plan your perfect budget trip.

You can also turn on price tracking to get alerts if the price changes for a route or flight.

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