United's Economy Plus offers extra legroom and priority check-in for a fee.
United's Polaris Lounges offer showers and dining for premium passengers.

Most accurate provider | Justfly.com 3 stars  | 
|---|---|
Most trusted provider | Justfly.com 3 stars  | 
Round-trip from | $200 (Cheapflightsfares)  | 
One-way from | $135 (Priceline)  | 
Popular in | June | 
Cheapest in | February | 
Average price | $269 | 
Good round-trip deal | $157 or less | 
Good one-way deal | $184 or less | 
Fly from
Fly to
Route
Depart
Return
Price
CancúnChicago
CUN - ORD
CUNORD
Cancun
Fri 12/5
3:18 pm-6:09 pm
Nonstop3h 51m
Chicago O'Hare Intl
Tue 12/9
7:35 am-3:59 pm
1 stop7h 24m
CancúnChicago
CUN - ORD
CUNORD
Cancun
Thu 2/19
3:18 pm-6:09 pm
Nonstop3h 51m
Chicago O'Hare Intl
Mon 2/23
8:43 am-1:33 pm
Nonstop3h 50m
CancúnChicago
CUN - ORD
CUNORD
Cancun
Fri 1/23
4:47 pm-7:47 pm
Nonstop4h 00m
Chicago O'Hare Intl
Mon 1/26
7:34 am-12:30 pm
Nonstop3h 56m
CancúnChicago
CUN - ORD
CUNORD
Cancun
Wed 2/11
3:18 pm-6:09 pm
Nonstop3h 51m
Chicago O'Hare Intl
Sun 2/15
9:05 pm-12:54 pm
1 stop14h 49m
CancúnChicago
CUN - ORD
CUNORD
Cancun
Fri 12/12
2:44 pm-10:56 pm
1 stop9h 12m
Chicago O'Hare Intl
Mon 12/15
8:07 pm-2:18 pm
1 stop17h 11m
CancúnChicago
CUN - ORD
CUNORD
Cancun
Fri 2/13
2:44 pm-12:26 am
1 stop10h 42m
Chicago O'Hare Intl
Tue 2/17
7:35 am-5:50 pm
1 stop9h 15m
CancúnChicago
CUN - ORD
CUNORD
Cancun
Wed 1/14
4:47 pm-7:47 pm
Nonstop4h 00m
CancúnChicago
CUN - ORD
CUNORD
Cancun
Fri 2/13
1:45 pm-4:55 pm
Nonstop4h 10m
CancúnChicago
CUN - ORD
CUNORD
Cancun
Thu 2/19
3:18 pm-6:09 pm
Nonstop3h 51m
CancúnChicago
CUN - ORD
CUNORD
Cancun
Tue 3/10
5:05 pm-9:05 pm
Nonstop4h 00m
| Provider | Price Accuracy | Trust Score* | 
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*2 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | 
Booking 6 days in advance of your planned departure date is, on average, the best time to get cheap flights from Cancún 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, August is the cheapest month in which you can book a flight from Cancún to Chicago O'Hare Intl Airport (average of $78). Flying from Cancún to Chicago O'Hare Intl Airport in June is currently the most expensive (average of $255). 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 Cancún to Chicago O'Hare Intl Airport in the evening. By choosing this option you can save up to 50% on the cost of your flight, compared to a flight at noon.
About 11% of weekly flights between Cancún and Chicago have experienced delays in the past year, with the average delay time being 157 minutes.
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.
Tuesday tends to have the lowest number of delays on this route, whereas Saturday has historically faced a higher average of delays compared to other days of the week.
Over the last year, Qatar Airways have had the lowest number of delays on this route, with just 7% of flights being delayed.
Food
Overall
Entertainment
Crew
Boarding
Comfort
Reviews
Anonymous,Oct 2025
YUL - ORD
Food
Overall
Entertainment
Crew
Boarding
Comfort
Reviews
Anonymous,Oct 2025
YUL - ORD
Food
Overall
Entertainment
Crew
Boarding
Comfort
Reviews
Anonymous,Oct 2025
YUL - ORD
Food
Overall
Entertainment
Crew
Boarding
Comfort
Reviews
Anonymous,Oct 2025
YUL - ORD
Food
Overall
Entertainment
Crew
Boarding
Comfort
Reviews
Anonymous,Oct 2025
YUL - ORD
| Airline | Cheapest | Average | Flexibility | On-time | 
|---|---|---|---|---|
| Cheapest$155 | Average$217 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$194 | Average$283 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$209 | Average$342 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$272 | Average$352 | FlexibilityNo cancel fee | On-time71% |