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Did you mean flights from Chicago to Ontario, California?

Flights from Ontario, California to Chicago, United States

Ontario, California to Chicago Last modified: Jun 24, 2018 1:24 -04:00Prices shown were found by travelers like you over the past 30 days

We've scanned 21,911,097,898 round trip itineraries and found the cheapest flights to Chicago. Frontier & United frequently offer the best deals to Chicago flights, or select your preferred carrier below to see the cheapest days to fly.

Frontier
ONTCHI
Wed 8/22
1 stop
CHIONT
Tue 9/4
1 stop
$282
United
ONTCHI
Thu 9/13
1 stop
CHIONT
Mon 9/17
1 stop
$298
American
ONTCHI
Mon 8/20
1 stop
CHIONT
Thu 8/23
1 stop
$302
Alaska
ONTCHI
Fri 10/19
1 stop
CHIONT
Mon 10/22
1 stop
$345

How Much is a Flight from Ontario, California to Chicago? Prices shown were found by travelers like you over the past 30 days

We have collected flight cost data from across the web for travel from Ontario, California to Chicago, and have found the average flight price for this trip to be $305.

Where To Buy Cheap Flights from Ontario, California to Chicago?

The best way to find a great deal on airfare is to search multiple sites. When you run a search on FareCompare, we search multiple sites and fare sources all at once so you don't have to - which is why we think FareCompare is the best place to find cheap tickets. Airlines can adjust prices for tickets from Ontario, California to Chicago based on the day and time that you decide to book your flight. We have collected data from all airlines, and have found that Tuesdays, Wednesdays, and Saturdays are often the best days to book flights. If you'd like to learn more, read our article about the best time to buy airline tickets.

How far in advance should I book tickets from Ontario, California to Chicago? Prices shown were found by travelers like you over the past 30 days

The chart below shows up-to-date information regarding how far in advance to book your flight from Ontario, California to Chicago.

Non Stop versus Connecting
Advanced PurchaseNon StopConnecting
< 7 days $0 $776
7-14 days $0 $366
14-21 days $407 $326
21-30 days $427 $326
30-60 days $0 $282
60-90 days $309 $282
90+ days $378 $302

Cheapest Day To Fly from Ontario, California to Chicago Prices shown were found by travelers like you over the past 30 days

We've examined 22,930,915,824 itinerary searches that we've seen for departures in the next 90 days and found that the cheapest day to fly from Ontario, California to Chicago is Wednesday. See the chart below to compare prices for other days of the week.

Monday Tuesday Wednesday Thursday Friday Saturday Sunday
$302$302$282$298$302$322$326

Compare Flight Prices from Ontario, California to Chicago by Month Prices shown were found by travelers like you over the past 30 days

Low priced flights are most commonly available by purchasing between one and three months in advance. International or holiday flights may need to be purchased even further in advance. The chart below shows the cheapest flight prices by month for Ontario, California to Chicago flights.

Month Origin Destination Carrier Depart Date Return Date Stops Price
June Ontario, California Chicago United 6/28/18 7/3/18 1 $776
July Ontario, California Chicago American 7/14/18 7/21/18 1 $326
August Ontario, California Chicago Frontier 8/22/18 9/4/18 1 $282
September Ontario, California Chicago Frontier 9/12/18 9/25/18 1 $282
October Ontario, California Chicago Frontier 10/24/18 10/29/18 1 $302
November Ontario, California Chicago American 11/8/18 11/12/18 1 $302
December Ontario, California Chicago United 12/10/18 12/17/18 1 $310
April Ontario, California Chicago United 4/10/19 4/16/19 1 $368

Cheap Last Minute Flights from Ontario, California to Chicago Prices shown were found by travelers like you over the past 30 days

Looking for cheap last minute flights or a weekend getaway? We've got you covered with weekend flight deals from Ontario, California to Chicago. The chart below shows the best last minute deals and cheap flights this weekend we could find.

Next 30 Days

SunMonTueWedThuFriSat
24 25 26 27 28 29 30
$776
1 2 3 4 5 6 7
$776 $416
8 9 10 11 12 13 14
$416 $354
15 16 17 18 19 20 21
$354 $396
22 23 24 25 26 27 28
$396 $428
29 30 31 1 2 3 4
$428

Connecting Flights vs Direct Flights from Ontario, California to Chicago Prices shown were found by travelers like you over the past 30 days

Flights between some cities may be significantly cheaper if you choose a multi-stop airline ticket. Although these connecting flights sacrifice some convenience, on average, travelers save 20%-60% when they choose to fly multi-stop versus a direct flight.

The average price for connecting flights from Ontario, California to Chicago is $371.

The average price for direct flights from Ontario, California to Chicago is $358.

The chart below shows up to date information regarding non-stop flights from Ontario, California to Chicago.

Weekly Direct Flights from Ontario, California to Chicago - By Carrier
CarrierMonTueWedThuFriSatSunEarliest FlightLatest Flight
Major Airlines 1 1 1 1 1 1 1 06:45 07:25

One Way Flights vs Round Trip Flights from Ontario, California to Chicago Prices shown were found by travelers like you over the past 30 days

We have found that there is often no price difference between buying a round trip flight versus a one way flight. Increased flexibility is the main benefit when it comes to buying a one way flight from Ontario, California to Chicago. However, booking a round trip flight can be a simpler process. You can compare round trip and one way flights by using our flight comparison.

The average price for one way flights from Ontario, California to Chicago is $205.

The average price for round trip flights from Ontario, California to Chicago is $368.

Ontario, California to Chicago Flight Questions

Below are some common questions that asked about this flight route:

Question: How long is the flight from Ontario, California to Chicago?
Answer: The average Ontario, California to Chicago flight time is 3 hours and 45 minutes.
Question: How far is Chicago from Ontario, California?
Answer: The distance from Ontario, California to Chicago is 1,701 miles (2,737 kilometers).
Question: How common are direct flights from Ontario, California to Chicago?
Answer: There are 7 direct flights from Ontario, California to Chicago.
Question: What are the most popular Ontario, California airlines for direct flights from Ontario, California to Chicago?
Answer: Major Airlines provides 100% of the non-stop flights between Ontario, California and Chicago.
Question: What are the most popular connecting cities when flying from Ontario, California to Chicago?
Answer: San Francisco, CA

Airlines in Ontario, California flying to Chicago Last modified: Jun 24, 2018 1:24 -04:00Number of routes searched: 293Number of itineraries searched: 114,495

Wondering which airlines fly out of Ontario, California to Chicago? We've gathered the average price of Ontario, California airlines with flights to Chicago. Different airlines offer different levels of comfort and service, so consider convenience when choosing your airline.

Below is the full flight schedule summary showing which days of the week individual carriers offer flights for the next 30 days.

Ontario, California to Chicago
Airline Connections Mon Tue Wed Thu Fri Sat Sun
American -
Alaska -
United -
American PHX
American ABQ
American ASE
American ATL
Alaska PDX
Alaska SEA
Alaska SFO
JetBlue JFK
Major Airlines SLC
Major Airlines ATL
Major Airlines DTW
Major Airlines MSP
Major Airlines CVG
Frontier DEN
Spirit DFW
Spirit LAS
United DEN
United SFO
United ABQ
United BOS

Ontario, California to Chicago Airports

These are the major commercial airports we're currently monitoring in Ontario, California and Chicago. If your route includes a city with multiple airports, you may be able to find substantial savings by choosing an alternate airport.

Farecompare Research Tools

FareCompare's Flight Schedule Search Tool helps you find information about airline schedule filings, including flight numbers, depart times, and travel distance.

Cheap International Flights to Chicago - CHI Last modified: Jun 24, 2018 1:24 -04:00Prices shown were found by travelers like you over the past 30 days

On FareCompare, you’ll find cheap flights for domestic and international travel. Since airlines change flight prices constantly, sign up for Fare Alerts and let FareCompare’s travel search engine monitor airline ticket prices of all major airlines, so you’ll be first in line to get the cheapest tickets.

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Cheap Flights from Ontario, California to Chicago