Cheap flights from Ontario to Chicago

Round-trip
Economy
Los Angeles (LAX)
Chicago (CHI)
Sat 6/5
Sat 6/12
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$150The best flight deal from Ontario to Chicago found on momondo in the last 72 hours is $150
Fastest flight time3h 49mThe fastest flight from Ontario to Chicago takes 3h 49m
Direct flightsNoneThere 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 Chicago3 airportsThere 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 from Ontario to Chicago?

July
The cheapest time of year to fly to Chicago from Ontario is July. Most expensive is December

What is the cheapest day to depart Ontario for Chicago?

Tuesday
The cheapest day of the week is typically Tuesday. The most expensive is typically Sunday

When is the cheapest time to fly from Ontario to Chicago?

at noon
Ontario to Chicago flights are approximately 13% more expensive in the morning than at noon

What is the cheapest airline that flies to Chicago from Ontario?

Alaska Airlines
Alaska Airlines, Spirit Airlines, and Frontier are the most popular carriers operating from Ontario to Chicago

What is the cheapest Ontario to Chicago flight route?

Ontario - Chicago O'Hare Intl
Fly from Ontario to Chicago O'Hare Intl for the best Ontario - Chicago flight prices

How far in advance should you book Ontario to Chicago flights?

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
Frontier
Jun 9
ONT8:14 pmOntario
4h 00m
ORD12:14 amChicago O'Hare Intl
Jun 21
ORD4:59 pmChicago O'Hare Intl
4h 15m
ONT9:14 pmOntario
Frontier
Jun 11
ONT8:14 pmOntario
4h 00m
ORD12:14 amChicago O'Hare Intl
Jul 30
ORD5:34 pmChicago O'Hare Intl
4h 15m
ONT9:49 pmOntario
Frontier
Jun 11
ONT8:14 pmOntario
4h 00m
ORD12:14 amChicago O'Hare Intl
Jun 23
ORD4:59 pmChicago O'Hare Intl
4h 15m
ONT9:14 pmOntario

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 provided by Frontier
Frontier
Jul 31
ONT8:34 pmOntario
4h 00m
ORD12:34 amChicago O'Hare Intl
Frontier
Jul 24
ONT8:34 pmOntario
4h 00m
ORD12:34 amChicago O'Hare Intl
Frontier
May 11
ONT9:34 amOntario
8h 09m
1 stop
ORD5:43 pmChicago O'Hare Intl

Best airlines flying from Ontario to Chicago

Compare and see reviews for airlines that fly from Ontario to Chicago with momondo
AirlineRatingFree CancellationPrice
Spirit Airlines
PriceFrom $95
Free Cancellation
Rating
7.1
7.5

Boarding

6.8

Comfort

7.7

Crew

6.3

Entertainment

6.4

Food

Reviews

Pros: Nothing

Cons: There’s no entertainment. Can’t even charge the phone. Can’t even recline the seat very uncomfortable flight

1 / 10
American Airlines
PriceFrom $109
Free Cancellation
Rating
7.2
7.4

Boarding

7.1

Comfort

7.9

Crew

7.0

Entertainment

6.8

Food

Reviews

Pros: Yes made sure mask was in place

Cons: No

1 / 10
Frontier
PriceFrom $117
Free Cancellation
Rating
7.5
8.0

Boarding

7.1

Comfort

8.1

Crew

6.6

Entertainment

6.9

Food

Reviews

Cons: Everything is ok

1 / 10
Delta
PriceFrom $122
Free Cancellation
Rating
8.1
8.2

Boarding

8.4

Comfort

8.2

Crew

7.8

Entertainment

8.0

Food

Reviews

Cons: Wouldn't let us on the flight when there was plenty of time to get there. Manager was arrogant and slow - didn't care. Poor policies at that airport.

1 / 10
United Airlines
PriceFrom $122
Free Cancellation
Rating
6.8
7.2

Boarding

6.6

Comfort

7.5

Crew

6.6

Entertainment

6.0

Food

Reviews

Pros: everything

Cons: nono

1 / 10
Southwest
PriceFrom $418
Free Cancellation
Rating
8.4
8.6

Boarding

8.5

Comfort

8.8

Crew

7.6

Entertainment

7.8

Food

Reviews

Pros: The plane was new and the seats were nice.

1 / 10

Which airlines flying from Ontario to Chicago have COVID-19 safety policies in place?

Many airlines have put safety measures in place to reduce the spread of COVID-19. Two of the airlines doing this are Alaska Airlines and Delta. When flying from Ontario to Chicago, expect masks to be provided - they are required onboard. Aircrafts are also being cleaned thoroughly with enhanced products regularly. Additional policies include the installation of HEPA filters and pre-flight testing. Some airlines are even offering socially-distanced seating for a limited time. Keep in mind that policies will vary by airline.

Are airlines flying from Ontario to Chicago offering flexible cancellation due to COVID-19?

Due to the global impact of COVID-19, some of our airline partners operating flights from Ontario to Chicago, such as American Airlines, United Airlines, and Delta may have put in place flexible cancellation policies. Use our site to search for all of the airlines offering this flexibility to you.


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