Flights
Hotels
From
To
1 traveler
Unsupported Browser!
Find Flights
Finding cheap flights is simple. More than 36 million people last year saved hundreds by using our flights tool.

Flights
Hotels
Round-trip
One-way
1 traveler
Unsupported Browser!
Find Flights
Finding cheap flights is simple. More than 36 million people last year saved hundreds by using our flights tool.
Did you mean flights from Ontario to Chicago?

Flights from Chicago to Ontario, United States Last modified: Sep 25, 2016 12:57 AM

TIPSave $320 by flying into Las Vegas instead of Ontario from Chicago

Chicago to Ontario Last modified: Sep 25, 2016 12:57 AM

We've scanned 23,629,223,180 round trip itineraries and found the cheapest flights from Chicago to Ontario. United & American frequently offer the best deals on Chicago to Ontario flights, or select your preferred carrier below to see the cheapest days to fly.

United
CHIONT
Wed 10/19
1 stop
ONTCHI
Wed 10/26
1 stop
$184
Select
United
CHIONT
Tue 10/25
1 stop
ONTCHI
Tue 11/1
1 stop
$184
Select
United
CHIONT
Tue 10/25
1 stop
ONTCHI
Wed 11/2
1 stop
$184
Select
United
CHIONT
Wed 10/26
1 stop
ONTCHI
Sat 10/29
1 stop
$184
Select
United
CHIONT
Wed 11/2
1 stop
ONTCHI
Wed 11/9
1 stop
$184
Select
American
CHIONT
Sat 11/12
1 stop
ONTCHI
Tue 11/15
1 stop
$232
Select
American
CHIONT
Fri 12/2
1 stop
ONTCHI
Sun 12/11
1 stop
$232
Select
American
CHIONT
Sun 12/4
1 stop
ONTCHI
Thu 12/8
1 stop
$232
Select
American
CHIONT
Mon 12/5
1 stop
ONTCHI
Thu 12/8
1 stop
$232
Select
Alaska
CHIONT
Wed 10/26
2 stops
ONTCHI
Sat 10/29
2 stops
$318
Select

How Much is a Flight from Chicago to Ontario?

We have collected flight cost data from across the web for travel from Chicago to Ontario, and have found the average flight price for this trip to be $208.

Where To Buy Cheap Flights from Chicago to Ontario?

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 thinking FareCompare is the best place to find cheap tickets. Airlines can adjust prices for tickets from Chicago to Ontario 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 Chicago to Ontario?

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

Non Stop versus Connecting
Advanced PurchaseNon StopConnecting
< 7 days $0 $442
7-14 days $0 $189
14-21 days $0 $234
21-30 days $0 $184
30-60 days $0 $184
60-90 days $320 $209
90+ days $272 $244

Cheapest Day To Fly from Chicago to Ontario

We've examined 23,636,053,052 itinerary searches that we've seen for departures in the next 90 days and found that the cheapest day to fly from Chicago to Ontario is Tuesday. See the chart below to compare prices for other days of the week.

Monday Tuesday Wednesday Thursday Friday Saturday Sunday
$209 $184 $184 $234 $232 $184 $224

Compare Flight Prices from Chicago to Ontario by Month

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 Chicago to Ontario flights.

Month Origin Destination Carrier Depart Date Return Date Stops Price
September Chicago Ontario Alaska 9/28/16 10/2/16 1 $442
October Chicago Ontario United 10/19/16 10/26/16 1 $184
November Chicago Ontario United 11/2/16 11/9/16 1 $184
December Chicago Ontario United 12/5/16 12/8/16 1 $209
January Chicago Ontario American 1/11/17 1/15/17 1 $244
February Chicago Ontario United 2/10/17 2/27/17 1 $332
March Chicago Ontario Alaska 3/5/17 3/11/17 0 $313
April Chicago Ontario American 4/19/17 4/23/17 0 $272

Cheap Last Minute Flights from Chicago to Ontario

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

Next 30 Days

SunMonTueWedThuFriSat
25 26 27 28 29 30 1
$584
2 3 4 5 6 7 8
$584 $407
9 10 11 12 13 14 15
$407 $239
16 17 18 19 20 21 22
$239 $269
23 24 25 26 27 28 29
$269 $239
30 31 1 2 3 4 5
$239

Connecting Flights vs Direct Flights from Chicago to Ontario

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 Chicago to Ontario is $250.

The average price for direct flights from Chicago to Ontario is $374.

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

Weekly Direct Flights from Chicago to Ontario - By Carrier
CarrierMonTueWedThuFriSatSunEarliest FlightLatest Flight
Southwest 1 1 1 1 1 1 1 08:35 08:55

One Way Flights vs Round Trip Flights from Chicago to Ontario

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 Chicago to Ontario. 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 Chicago to Ontario is $173.

The average price for round trip flights from Chicago to Ontario is $250.

Chicago to Ontario Flight Questions

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

Question: How long is the flight from Chicago to Ontario?
Answer: The average Chicago to Ontario flight time is 4 hours and 15 minutes.
Question: How far is Ontario from Chicago?
Answer: The distance from Chicago to Ontario is 1,701 miles (2,737 kilometers).
Question: How common are direct flights from Chicago to Ontario?
Answer: There are 7 direct flights from Chicago to Ontario.
Question: What are the most popular Chicago airlines for direct flights from Chicago to Ontario?
Answer: Southwest Airlines provides 100% of the non-stop flights between Chicago and Ontario.
Question: What are the most popular connecting cities when flying from Chicago to Ontario?
Answer: San Francisco, CA

Airlines in Chicago flying to Ontario Last modified: Sep 25, 2016 12:57 AMNumber of routes searched: 289Number of itineraries searched: 120,962

Wondering which airlines fly out of Chicago to Ontario? We've gathered the average price of Chicago airlines with flights to Ontario. 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.

Chicago to Ontario
Airline Connections Mon Tue Wed Thu Fri Sat Sun
American -
American PHX
American LAS
American DEN
American DFW
United CLT
Delta CVG
United ASE
United BOS
United CLE
United EWR

Chicago to Ontario Airports

These are the major commercial airports we're currently monitoring in Chicago and Ontario. 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 Domestic Flights from Chicago - CHI

FlightsAirlineLowest Price
Flights from Chicago to Los Angeles American, Alaska, Delta, Frontier, Spirit, United, Virgin America $117
Flights from Chicago to Las Vegas American, Alaska, Delta, Frontier, Hawaiian, Spirit, United, Virgin America $97
Flights from Chicago to Santa Ana American, Alaska, Delta, Frontier, United $163
Flights from Chicago to San Diego American, Alaska, Delta, Frontier, Spirit, United, Virgin America $136
Flights from Chicago to Long Beach American, Delta $259
Flights from Chicago to San Francisco American, Alaska, Delta, Frontier, United, Virgin America $117
Flights from Chicago to Phoenix American, Alaska, Delta, Frontier, Spirit, United $111
Flights from Chicago to Burbank American, Alaska, Delta, United $232
Flights from Chicago to New York American, Alaska, JetBlue, Delta, Spirit, United $107
Flights from Chicago to Palm Springs American, Alaska, Delta, United, Virgin America $297

Cheap Domestic Flights to Ontario - ONT

Cheap Flights from Chicago to Ontario