Spirit's Big Front Seats offer 11 inches more legroom, ideal for comfort on medium-haul flights.
Spirit's self-service bag drop saves time; print your boarding pass to avoid extra fees.

Most accurate provider | CheapOair 3 stars |
|---|---|
Most trusted provider | CheapOair 3 stars |
Round-trip from | $86 (Super.com) |
One-way from | $60 (CheapOair) |
Popular in | November |
Cheapest in | October |
Average price | $265 |
Good round-trip deal | $241 or less |
Good one-way deal | $162 or less |
Fly from
Fly to
Route
Depart
Return
Price
MiamiChicago
MIA - ORD
MIAORD
Miami
Wed 1/28
5:54 am-8:18 am
Nonstop3h 24m
Chicago O'Hare Intl
Fri 1/30
6:57 pm-11:14 pm
Nonstop3h 17m
MiamiChicago
MIA - ORD
MIAORD
Miami
Wed 12/31
10:13 am-4:00 pm
1 stop6h 47m
Chicago O'Hare Intl
Thu 1/1
6:05 pm-10:21 pm
Nonstop3h 16m
MiamiChicago
MIA - ORD
MIAORD
Miami
Thu 12/25
2:35 pm-5:00 pm
Nonstop3h 25m
Chicago O'Hare Intl
Mon 12/29
6:05 pm-10:21 pm
Nonstop3h 16m
MiamiChicago
MIA - ORD
MIAORD
Miami
Thu 1/22
5:35 pm-8:17 pm
Nonstop3h 42m
Chicago O'Hare Intl
Sun 1/25
5:55 pm-10:15 pm
Nonstop3h 20m
MiamiChicago
MIA - ORD
MIAORD
Miami
Fri 2/20
6:00 am-10:08 am
1 stop5h 08m
Chicago O'Hare Intl
Sun 2/22
2:03 pm-9:51 pm
1 stop6h 48m
MiamiChicago
MIA - ORD
MIAORD
Miami
Wed 4/8
4:10 pm-6:50 pm
Nonstop3h 40m
Chicago O'Hare Intl
Wed 4/15
7:30 am-11:52 am
Nonstop3h 22m
MiamiChicago
MIA - ORD
MIAORD
Miami
Wed 2/25
5:20 pm-9:50 pm
1 stop5h 30m
Chicago O'Hare Intl
Sun 3/1
4:25 pm-11:00 pm
1 stop5h 35m
MiamiChicago
MIA - ORD
MIAORD
Miami
Fri 3/13
7:38 pm-11:56 pm
1 stop5h 18m
Chicago O'Hare Intl
Mon 3/16
5:59 pm-12:53 am
1 stop5h 54m
MiamiChicago
MIA - ORD
MIAORD
Miami
Thu 3/19
12:00 pm-4:46 pm
1 stop5h 46m
Chicago O'Hare Intl
Mon 3/23
5:59 pm-12:53 am
1 stop5h 54m
MiamiChicago
MIA - ORD
MIAORD
Miami
Sun 2/1
5:30 am-1:37 pm
1 stop9h 07m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*2 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
Booking 72 days in advance of your planned departure date is, on average, the best time to get cheap flights from Miami to Chicago O'Hare Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Currently, March is the cheapest month in which you can book a flight from Miami to Chicago O'Hare Intl Airport (average of $53). Flying from Miami to Chicago O'Hare Intl Airport in June is currently the most expensive (average of $118). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
It’s optimal to fly from Miami to Chicago O'Hare Intl Airport in the evening. By choosing this option you can save up to 26% on the cost of your flight, compared to a flight in the afternoon.
Travelers seeking maximum savings on their Miami to Chicago O'Hare Intl Airport flight should consider departing on Thursday evenings when fares are most often at their lowest. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
About 14% of weekly flights between Miami and Chicago have experienced delays in the past year, with the average delay time being 158 minutes.
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.
Tuesday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.
Over the last year, Spirit Airlines have had the lowest number of delays on this route, with just 12% of flights being delayed.
Comfort
Boarding
Food
Overall
Entertainment
Crew
Reviews
Anonymous,Oct 2025
YUL - ORD
Comfort
Boarding
Food
Overall
Entertainment
Crew
Reviews
Anonymous,Oct 2025
YUL - ORD
Comfort
Boarding
Food
Overall
Entertainment
Crew
Reviews
Anonymous,Oct 2025
YUL - ORD
Comfort
Boarding
Food
Overall
Entertainment
Crew
Reviews
Anonymous,Oct 2025
YUL - ORD
Comfort
Boarding
Food
Overall
Entertainment
Crew
Reviews
Anonymous,Oct 2025
YUL - ORD
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$84 | Average$172 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$106 | Average$238 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$157 | Average$286 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$158 | Average$341 | FlexibilityNo cancel fee | On-time69% |