Cheap flights from Ontario to Chicago

Round-trip
1 adult
Economy
From?
To?
Thu 8/5
Thu 8/12

Travel Restriction Alert

The COVID-19 (coronavirus) outbreak may impact travel from Ontario to Chicago.
View current United States travel restrictions

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$127The best flight deal from Ontario to Chicago found on momondo in the last 72 hours is $127
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 Airport - Chicago Greater Rockford Airport, Ontario Airport - Chicago O'Hare Intl Airport and Ontario Airport - Chicago Midway Airport.
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?

Spirit Airlines

American Airlines, Delta, 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


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
Aug 23
ONT8:14 pmOntario
4h 00m
ORD12:14 amChicago O'Hare Intl
Aug 28
ORD4:59 pmChicago O'Hare Intl
4h 15m
ONT9:14 pmOntario
Frontier
Sep 13
ONT8:14 pmOntario
4h 00m
ORD12:14 amChicago O'Hare Intl
Sep 18
ORD4:59 pmChicago O'Hare Intl
4h 11m
ONT9:10 pmOntario
Frontier
Aug 20
ONT8:14 pmOntario
4h 00m
ORD12:14 amChicago O'Hare Intl
Aug 23
ORD4:59 pmChicago O'Hare Intl
4h 15m
ONT9:14 pmOntario
Frontier
Aug 20
ONT8:14 pmOntario
4h 00m
ORD12:14 amChicago O'Hare Intl
Aug 27
ORD4:59 pmChicago O'Hare Intl
4h 15m
ONT9:14 pmOntario
Multiple Airlines
Sep 15
ONT5:53 amOntario
19h 10m
2 stops
ORD1:03 amChicago O'Hare Intl
Sep 18
ORD4:59 pmChicago O'Hare Intl
4h 11m
ONT9:10 pmOntario
Frontier
Aug 13
ONT8:14 pmOntario
4h 00m
ORD12:14 amChicago O'Hare Intl
Aug 21
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
Aug 20
ONT8:14 pmOntario
4h 00m
ORD12:14 amChicago O'Hare Intl
Frontier
Sep 13
ONT8:14 pmOntario
4h 00m
ORD12:14 amChicago O'Hare Intl
Frontier
Aug 21
ONT8:14 pmOntario
4h 00m
ORD12:14 amChicago 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
6.4
6.7

Boarding

6.1

Comfort

7.2

Crew

5.5

Entertainment

5.6

Food

Reviews

Pros: Well, it was not very comfortable and we were delayed for an hour. And a crew member was sick.

Cons: Mostly everything.

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

Boarding

7.1

Comfort

7.8

Crew

7.0

Entertainment

6.8

Food

Reviews

Pros: Delayed flight no reasons seems like American Airlines don’t know what to do in these situations

Cons: I believe this airlines should have figured the answer to this question by now.

1 / 10
Frontier
PriceFrom $117
Free Cancellation
Rating
6.0
6.3

Boarding

5.8

Comfort

6.7

Crew

4.9

Entertainment

5.1

Food

Reviews

Cons: The boarding process was horrible. The flight was running late there was no communication until people started screaming at the person behind the counter tell us what the heck is going on. Then they made us walk at least a mile to the plane.

1 / 10
Delta
PriceFrom $122
Free Cancellation
Rating
8.2
8.3

Boarding

8.5

Comfort

8.3

Crew

7.9

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

6.1

Food

Reviews

Cons: Sarasota ticketing agent was not very nice at all 😟 Houston Gate agent was not nice either. We were treated like we were stupid for asking questions. I hope it’s not racism issues. I wished I had taken their names.

1 / 10
Southwest
PriceFrom $418
Free Cancellation
Rating
8.3
8.5

Boarding

8.4

Comfort

8.7

Crew

7.5

Entertainment

7.7

Food

Reviews

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

1 / 10

  • 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.

  • How far is Ontario to Chicago by plane?

    The straight-line distance from Ontario to Chicago is 1710.7 mi. 4h 00m is a normal flight duration for this route.


Can I fly to Chicago from Ontario right now?

Information is based on travel restrictions for travel to Chicago within the United States

Most visitors from Ontario need to provide a negative COVID-19 test result and/or quarantine to enter Chicago.

COVID-19 testing requirements
Visitors from Ontario must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Chicago.

Quarantine requirements
Visitors from Ontario are not required to quarantine after entering Chicago.

Can I fly back to Ontario from Chicago?

Returning to Ontario from Chicago

COVID-19 testing requirements
Visitors from Chicago must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Ontario.

Quarantine requirements
Visitors from Chicago are not required to quarantine after entering Ontario.

If you are planning to travel to Chicago at this time, it is recommended that you stay up to date on current restrictions and follow proper safety measures while in public.

Alternative routes for Ontario to Chicago

Compare alternative flights to and from nearby airports and cities to discover the best prices and most convenient flight times
Los Angeles to Chicago Flights
Fastest flight time3h 48m
Cheapest price$56
Los Angeles to St. Louis Flights
Fastest flight time2h 25m
Cheapest price$61
Oakland, California to Chicago Flights
Fastest flight time4h 05m
Cheapest price$74
Santa Ana to Chicago Flights
Fastest flight time4h 00m
Cheapest price$77
Burbank to Chicago Flights
Fastest flight time5h 44m
Cheapest price$83
Sacramento to Chicago Flights
Fastest flight time3h 58m
Cheapest price$83
San Diego to Chicago Flights
Fastest flight time3h 50m
Cheapest price$85
San Diego to St. Louis Flights
Fastest flight time5h 12m
Cheapest price$113
San Francisco to Chicago Flights
Fastest flight time3h 58m
Cheapest price$141
San Francisco to St. Louis Flights
Fastest flight time4h 14m
Cheapest price$144
Reno to Chicago Flights
Fastest flight time3h 53m
Cheapest price$164
Fresno to Chicago Flights
Fastest flight time4h 00m
Cheapest price$180