Question 1

Which is the best airline for flights from Chicago to Ontario, Delta or United Airlines?

Accepted Answer

The two airlines most popular with KAYAK users for flights from Chicago to Ontario are Delta and United Airlines. With an average price for the route of $385 and an overall rating of 7.8, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $481 and an overall rating of 7.4.

Question 2

How long does a flight from Chicago O'Hare Airport to Ontario take?

Accepted Answer

The average nonstop flight takes 4h 26m, covering a distance of 1,695 miles.

Question 3

How many flights are there between Chicago O'Hare Intl Airport and Ontario per day?

Accepted Answer

There is a maximum of 1 nonstop flight a day that takes off from Chicago O'Hare Intl Airport and lands in Ontario, with an average flight time of 4h 27m. The most common departure time is 8:00 pm and most flights take off in the evening. Each week, there are 7 flights.

Question 4

How many flights are there between Chicago O'Hare Intl Airport and Ontario per day?

Accepted Answer

There is a maximum of 1 nonstop flight a day that takes off from Chicago O'Hare Intl Airport and lands in Ontario, with an average flight time of 4h 27m. The most common departure time is 8:00 pm and most flights take off in the evening. Each week, there are 7 flights.

Question 5

What is the cheapest flight from Chicago O'Hare Intl Airport to Ontario?

Accepted Answer

In the last 5 days, the lowest price for a flight from Chicago O'Hare Intl Airport to Ontario was $72 for a one-way ticket and $146 for a round-trip.

Question 6

Do I need a passport to fly between Chicago O'Hare Airport and Ontario?

Accepted Answer

Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

Question 7

What’s the cheapest day of the week to fly from Chicago O'Hare Airport to Ontario?

Accepted Answer

For Chicago O'Hare Airport to Ontario, Wednesday is the cheapest day to fly on average and Sunday is the most expensive. Flying from Ontario back to Chicago O'Hare Airport, the best deals are generally found on Saturday, with Sunday being the most expensive.

Question 8

What’s the cheapest day of the week to fly from Chicago O'Hare Airport to Ontario?

Accepted Answer

For Chicago O'Hare Airport to Ontario, Wednesday is the cheapest day to fly on average and Sunday is the most expensive. Flying from Ontario back to Chicago O'Hare Airport, the best deals are generally found on Saturday, with Sunday being the most expensive.

Question 9

What’s the earliest departure time from Chicago O'Hare Airport to Ontario?

Accepted Answer

Early birds can take the earliest flight from Chicago O'Hare Intl Airport at 8:06 pm and will be landing in Ontario at 10:35 pm.

Question 10

What’s the latest departure time from Chicago O'Hare Airport to Ontario?

Accepted Answer

If you prefer to fly at night, the latest flight from Chicago O'Hare Intl Airport to Ontario jets off at 8:33 pm and lands at 10:59 pm.

Question 11

Which airlines fly non-stop between Chicago O'Hare Intl Airport and Ontario?

Accepted Answer

There are 4 airlines that fly nonstop from Chicago O'Hare Intl Airport to Ontario. They are: American Airlines, Delta, Frontier and United Airlines. The cheapest price of all airlines flying this route was found with Frontier at $167 for a round-trip flight. On average, the best prices for this route can be found at Frontier.

Question 12

Which airlines fly non-stop between Chicago O'Hare Intl Airport and Ontario?

Accepted Answer

There are 4 airlines that fly nonstop from Chicago O'Hare Intl Airport to Ontario. They are: American Airlines, Delta, Frontier and United Airlines. The cheapest price of all airlines flying this route was found with Frontier at $167 for a round-trip flight. On average, the best prices for this route can be found at Frontier.

Question 13

Which airlines offer Wi-Fi service onboard planes from Chicago O'Hare Airport to Ontario?

Accepted Answer

American Airlines, JetBlue, and Alaska Airlines offer inflight Wi-Fi service on the Chicago O'Hare Airport to Ontario flight route.

Question 14

Which aircraft models fly most regularly from Chicago O'Hare Airport to Ontario?

Accepted Answer

The Boeing 737 MAX 8 is the aircraft model that flies most regularly on the Chicago O'Hare Airport to Ontario flight route.

Question 15

Which airline alliances offer flights from Chicago O'Hare Airport to Ontario?

Accepted Answer

SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between Chicago O'Hare Airport and Ontario, with SkyTeam being the most commonly used for this route.

Question 16

On which days can I fly direct from Chicago O'Hare Airport to Ontario?

Accepted Answer

There are nonstop flights from Chicago O'Hare Airport to Ontario on a daily basis.

Question 17

What is the cheapest month to fly from Chicago O'Hare Intl Airport to Ontario?

Accepted Answer

The cheapest month for flights from Chicago O'Hare Intl Airport to Ontario is January, where tickets cost $306 (return) on average. On the other hand, the most expensive months are December and July, where the average cost of round-trip tickets is $576 and $531 respectively.

Question 18

What is the cheapest month to fly from Chicago O'Hare Intl Airport to Ontario?

Accepted Answer

The cheapest month for flights from Chicago O'Hare Intl Airport to Ontario is January, where tickets cost $306 (return) on average. On the other hand, the most expensive months are December and July, where the average cost of round-trip tickets is $576 and $531 respectively.

Question 19

How does KAYAK find such low prices on flights from Chicago O'Hare Airport to Ontario?

Accepted Answer

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Chicago O'Hare Airport to Ontario.

Question 20

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Chicago O'Hare Airport to Ontario?

Accepted Answer

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario from Chicago O'Hare Airport is likely to change within 7 days, so travelers know whether to wait or book now.

Question 21

What is the Hacker Fare option on flights from Chicago O'Hare Airport to Ontario?

Accepted Answer

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ontario with an airline and back to Chicago O'Hare Airport with another airline. Booking your flights between Chicago O'Hare Airport and ONT can sometimes prove cheaper using this method.

Question 22

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Chicago O'Hare Airport to Ontario?

Accepted Answer

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ontario from Chicago O'Hare Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Question 23

What is the cheapest layover airport when flying from Chicago O'Hare Airport to Ontario?

Accepted Answer

Flights via Denver (DEN) offer the most affordable fares, with an average round-trip price of $333.

Question 24

What is the most popular layover airport when flying from Chicago O'Hare Airport to Ontario?

Accepted Answer

Phoenix (PHX) is the top choice – 60% of KAYAK users who clicked on 1-stop flights from Chicago O'Hare Airport to Ontario picked an itinerary connecting there.

Question 25

Which layover airport has the quickest connection when flying from Chicago O'Hare Airport to Ontario?

Accepted Answer

If you prefer a quick connection, Dallas (DFW) often has the shortest layovers from Chicago O'Hare Airport to Ontario, with an average of 0h 58m.

Question 26

Which layover airport offers the shortest total travel time from Chicago O'Hare Airport to Ontario?

Accepted Answer

Consider flying via Las Vegas (LAS) for the shortest journey. The average one-way travel time for flights connecting there is 5h 55m.

Question 27

Which cabin class options are there for flights between Chicago O'Hare Intl Airport and Ontario?

Accepted Answer

There are 4 cabin class options for the route. These are First, Business, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

Question 28

Which cabin class options are there for flights between Chicago O'Hare Intl Airport and Ontario?

Accepted Answer

There are 4 cabin class options for the route. These are First, Business, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

Question 29

Which airlines provide the cheapest flights from Chicago O'Hare Airport to Ontario?

Accepted Answer

In the past 5 days, the cheapest round-trip tickets from Chicago O'Hare Airport to Ontario were found on Frontier ($146) and United Airlines ($167).

Question 30

Which airlines provide the cheapest flights from Chicago O'Hare Airport to Ontario?

Accepted Answer

In the past 5 days, the cheapest round-trip tickets from Chicago O'Hare Airport to Ontario were found on Frontier ($146) and United Airlines ($167).

Question 31

Can I save money by flying with a layover from Chicago O'Hare Intl Airport to Ontario?

Accepted Answer

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $451 on average.

Question 32

Can I save money by flying with a layover from Chicago O'Hare Intl Airport to Ontario?

Accepted Answer

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $451 on average.

Question 33

How much is a round-trip flight from Chicago O'Hare Intl Airport to Ontario?

Accepted Answer

Flight prices are below average for this route right now.Flights to Ontario from Chicago O'Hare Intl Airport usually cost between $268 and $550 in September.
The lowest price found in the past 5 days was $146 on Frontier (Sep 10-Sep 16).

Question 34

What are the most popular airlines flying to Ontario?

Accepted Answer

The most popular airline among KAYAK users flying to Ontario is American Airlines, followed by United Airlines and Frontier.

Low season	January
High season	March
Cheapest flight	$72

ORD - ONT

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Cheap Flights from O'Hare Intl to Ontario (ORD-ONT)

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KAYAK's insights & trends for O'Hare Intl to Ontario flights

How much is a round-trip flight from Chicago O'Hare Intl Airport to Ontario?

What’s the cheapest day of the week to fly from Chicago O'Hare Airport to Ontario?

What is the cheapest month to fly from Chicago O'Hare Intl Airport to Ontario?

Can I save money by flying with a layover from Chicago O'Hare Intl Airport to Ontario?

Which airlines provide the cheapest flights from Chicago O'Hare Airport to Ontario?

Which airlines fly non-stop between Chicago O'Hare Intl Airport and Ontario?

What is the most popular layover airport when flying from Chicago O'Hare Airport to Ontario?

What is the cheapest layover airport when flying from Chicago O'Hare Airport to Ontario?

Which layover airport offers the shortest total travel time from Chicago O'Hare Airport to Ontario?

Which layover airport has the quickest connection when flying from Chicago O'Hare Airport to Ontario?

Which cabin class options are there for flights between Chicago O'Hare Intl Airport and Ontario?

How many flights are there between Chicago O'Hare Intl Airport and Ontario per day?

How long does a flight from Chicago O'Hare Airport to Ontario take?

What’s the earliest departure time from Chicago O'Hare Airport to Ontario?

What’s the latest departure time from Chicago O'Hare Airport to Ontario?

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