Cheap flights from Ontario to Chicago

Round-trip
Economy
Los Angeles (LAX)
Chicago (CHI)
Fri 9/11
Fri 9/18
Any month
Compare vs. momondo |

Flight information for Ontario to Chicago
(ONT to CHI)

Find info about flight duration, direct flights, and airports for your flight from Ontario to Chicago
Best Price Found $78 The best flight deal from Ontario to Chicago found on momondo in the last 72 hours is $78
Fastest flight time 6h 12m The fastest flight from Ontario to Chicago takes 6h 12m.
Direct flights None There are no direct flights from Ontario to Chicago. Popular non-direct routes for this connection are Ontario - Chicago Midway, Ontario - Chicago Greater Rockford and Ontario - Chicago O'Hare Intl.
Airports in Chicago 3 airports There are 3 airports near Chicago: Chicago O'Hare Intl (ORD), Chicago Midway (MDW), Chicago Greater Rockford (RFD)

How to get the cheapest flight ticket from Ontario to Chicago

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Chicago?
February
The cheapest time of year to fly to Chicago from Ontario is February. Most expensive is June
What is the cheapest day to fly to Chicago?
Tuesday
The cheapest day of the week is typically Tuesday. The most expensive is typically Sunday
When is the cheapest time to fly to Chicago?
at noon
Ontario to Chicago flights are approximately 11% more expensive in the morning than at noon
What is the cheapest airline that flies to Chicago?
Alaska Airlines
Alaska Airlines, Spirit Airlines, and Frontier are the most popular carriers operating from Ontario to Chicago
What is the cheapest route?
Ontario - Chicago O'Hare Intl
Fly from Ontario to Chicago O'Hare Intl for the best Ontario - Chicago flight prices
When is the cheapest time to book a flight to Chicago?
60 days before
The cheapest time to buy a flight from Ontario to Chicago is approximately 60 days to departure
60
Days before departure
0

Easily compare round-trip flights from Ontario to Chicago

Below you can see the best fares for your round-trip flight route over the next three months. All fares were found on momondo this week. Browse the quickest and cheapest flights from Ontario to Chicago by changing tabs
Cheapest
Best
Quickest
Multiple Airlines
Aug 15
ONT
Ontario
6h 14m
1 stop
ORD
Chicago O'Hare Intl
Aug 22
ORD
Chicago O'Hare Intl
8h 46m
1 stop
ONT
Ontario
Multiple Airlines
Aug 15
ONT
Ontario
6h 14m
1 stop
ORD
Chicago O'Hare Intl
Aug 22
ORD
Chicago O'Hare Intl
8h 46m
1 stop
ONT
Ontario
Multiple Airlines
Aug 15
ONT
Ontario
6h 14m
1 stop
ORD
Chicago O'Hare Intl
Aug 20
ORD
Chicago O'Hare Intl
10h 42m
1 stop
ONT
Ontario

Find the cheapest one-way flights from Ontario to Chicago

If you're looking for one-way flights from Ontario to Chicago, view some of our deals below.
Cheapest
Best
Quickest
Multiple Airlines
Aug 24
ONT
Ontario
19h 05m
2 stops
ORD
Chicago O'Hare Intl
Delta
Aug 13
ONT
Ontario
11h 14m
2 stops
ORD
Chicago O'Hare Intl
Multiple Airlines
Aug 13
ONT
Ontario
19h 39m
1 stop
ORD
Chicago O'Hare Intl

Flights from Ontario to:

  • Round-trip
  • One-way
  • Multi-city
  • Economy
  • Premium Economy
  • Business
  • First
  • Multiple
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First