United's Economy Plus seats offer up to six inches more legroom than standard economy.
United Polaris Lounge offers luxurious amenities and free seated meals for Polaris passengers.

| Low season | November |
|---|---|
| High season | May |
| Cheapest flight | $139 |
Direct departures
Cancun to Chicago O'Hare Intl
Monday
American Airlines, Frontier, Spirit Airlines, +2 more
American Airlines, Frontier, +3 more
1
2
Tuesday
American Airlines, Frontier, Spirit Airlines, +1 more
American Airlines, Frontier, +2 more
1
Wednesday
American Airlines, Frontier, Spirit Airlines, +1 more
American Airlines, Frontier, +2 more
1
Thursday
American Airlines, Frontier, Spirit Airlines, +2 more
American Airlines, Frontier, +3 more
1
2
Friday
American Airlines, Frontier, Southwest, +2 more
American Airlines, Frontier, +3 more
1
2
Saturday
American Airlines, Frontier, Southwest, +2 more
American Airlines, Frontier, +3 more
1
2
Sunday
American Airlines, Frontier, Southwest, +2 more
American Airlines, Frontier, +3 more
1
2
Direct returns
Chicago O'Hare Intl to Cancun
Monday
American Airlines, Frontier, Spirit Airlines, +2 more
American Airlines, Frontier, +3 more
1
2
Tuesday
American Airlines, Frontier, Spirit Airlines, +1 more
American Airlines, Frontier, +2 more
1
Wednesday
American Airlines, Frontier, Spirit Airlines, +1 more
American Airlines, Frontier, +2 more
1
Thursday
American Airlines, Frontier, Spirit Airlines, +2 more
American Airlines, Frontier, +3 more
1
2
Friday
American Airlines, Frontier, Southwest, +2 more
American Airlines, Frontier, +3 more
1
2
Saturday
American Airlines, Frontier, Southwest, +2 more
American Airlines, Frontier, +3 more
1
2
Sunday
American Airlines, Frontier, Southwest, +2 more
American Airlines, Frontier, +3 more
1
2
They did the one thing that really matters - got to Chicago early.
They did the one thing that really matters - got to Chicago early.
The flight was on time. I generally don’t drink or eat on short flights and the seats were good and the flight attendants were friendly. That’s all I expect
It was nice to have gotten up upgraded to first class with a meal on a three hour flight
Very bad! They kept delaying my flight and wouldn’t do anything about it
Door to door, the crew and staff were amazing. It was a stressful travel day with delays, but they were focused on customers and doing what they could to get us to our destinations.
United has come a long way, it’s been a fantastic experience traveling with them.
This flight leg was fantastic - super comfortable and a great selection of things to watch on the TV. Staff were excellent, really above and beyond.
Flight was delayed only slightly before takeoff due to traffic control. However, the flight arrived early to ORD. Good flight. United has been very reliable for me.
Another delayed flight. When the delays exceed the duration of the flight, it’s a problem.
After boarding the plane in Chicago, the passengers were told that there was a technical problem with the plane. Passengers remained on the plane as they tried to fix the problem. After what was probably an hour passengers were told that there was a need to change planes as the problem was not solved. Passengers disembarked and boarded another plane. After taxing to the runway and waiting for takeoff, passengers were told that owing to the thunderstorm the flight was unable to take off but would try and reroute. After some time passengers were told there wasn't enough fuel for the new route and the plane had to return to the gate for additional fuel. after another log delay the flight got underway. On the plane there was food, drinks, ice or entertainment. We were a glass of water, which appeared rationed. Flight arrived about 5 hours late. The pilot was fantastic and communicated with the passengers throughout the ordeal.
The boarding process needs to be fixed. The zone don't work, especially when there is hardly anyone in zones 3, 4,and 5, leaving the majority of the passengers backed up in the aisle, especially because passengers seated near the front are blocking passengers who are seated in the rear of the plane. It would also help if the size of carry on bags was more strictly enforced.
Awful. They won’t help me with anything. I booked on American but they abdicated to Iberia. The ticket was overpriced. Everything negative
I enjoyed the extra leg room compared to other airlines. The first stewards made my daughter’s birthday special by giving her an extra snack. Then the last one coming home from Chicago to Appleton made our night really enjoyable Thanks for making our trip enjoyable
It was good..clean, comfy seat. Friendly warm welcoming crew. Was able to check my cabin luggage at the gate which I was able to pickup in a decent time from baggage claim. The app gave all updates from delays to baggage claim info. Overall smooth flight.
It was a typical flight. We had a delay which seems to be the normality now. And we had no in flight service due to conditions.
After we landed we sat on the tarmac for 1.5 hours waiting to get to our gate. Ridiculous.
Flight, food and crew were all good, friendly and very satisfactory.
Terrible. Flight delayed for more than 8 hours with only a $12 meal voucher provided for the inconvenience. The airplane did not have breaks on arrival yet they still made us go through the motions and board on time knowing we could not take off then sit for 40+ minutes before having to get of the time. A complete waste of my time. I cannot believe they can stay business with these shenanigans. I’ll avoid this company like the plague moving forward as the lack of accountability is disgraceful.
This was the best 2 flights I have had with American out of SGF. Great crew both flights.
Premium economy seat was decent. As always poor headphones, poor food and beverage, crew is not overly friendly
I waited for 4+ extra hours to even board when i was fighting off a cold. So i was sitting there in the airport with a fever and chills while spirit wasted my time. Then once on the plane we had at least an extra hour of taxiing before and after takeoff. Really poor airline, no amenities to speak of, and a lack of organization that will just ruin your experience.
Terrible. They cancelled the flight at the last minute after I had checked in at the airport and then told me they could only put me on a flight after 7 days. Pathetic.
Flight was on time. Friendly crew. Gate agents in the other hand were very unfriendly.
Bought round trip tickets. Ended up upgrading to first class. Both flights were new planes but hadn’t been equipped with WiFi and there were no charging ports at my seat despite it being new and first class accommodations.
Like: seats that don't move; fast boarding; engaging crew; low-prices; individual gate at LGA; access to restrooms at the gate Dislike: no water on the flight
To be Honest they canceled my flight and didn't have other options. Until 4 says later and I have a 2yr old very disappointed.
The whole thing everything was poorly managed poorly handled spirit doent deserve to be in business period.
Nothing. It was delayed three times and then canceled and we had to drive 15 hours to get home and rent a car.
Excellent experience when I am looking for a budget airline where the main expectation is getting me from point A to point B with no frills.
Had to deplane for undisclosed mechanical issue. Landed in Chicago 3 hours late. Food voucher at FLL came just as we were recording. Crew and agents were troopers--better than Spirit last night.
I loved the staff on the plane. So friendly and helpful! However, there was an argument and misunderstanding by the staff and a customer at the gate, and the staff member was being unprofessional. When we arrived in Atlanta, we waited 1.5 hrs for our luggage to arrive. When I asked the airport attendant, they said Frontier had the longest wait for luggage out of any airlines, and that they could not be held responsible for the delay.
Not clean and was told I would get a great seat and it was not great at all
Good- no snacks on a 4+ hour flight is painful but more painful was the lack of WiFi.
Flight got delayed for 5 hours no good explanation was offered ;(
Horrible. I would never fly Frontier again. The booking process is tricky at best, but fraudulent in my opinion. Frontier customer service did nothing to rectify my purchase -- I ended up paying more than double what I could have gotten from other airlines and nearly triple what I thought I was buying from Frontier. Their booking practices are unfair to the consumer.
Delayed. Text notifications were slow. Not much information o what was happening. Boarding was slow and confusing. Wasn’t even offered water other flight. Had to ask. No entertainment at all. Felt like.a Greyhound bus.
When I wanted to check in 3 hours prior to boarding time, the employees mentioned “a little over an hour delay” so I waited for an hour then I went to go look for food in the terminal and most people from that flight were in the same area looking for food. Finally I decided after food to check to see if it’s anytime closer and now it’s 2 mins until boarding closes?! What are you kidding me? I didn’t receive anything via sms about boarding now nor via email or on the intercom. I luckily made it through, barely, and then there’s no room for my carry on mind you I’m in the very first row so I had to place my purse in one further row back and my carry on sections down. Not sure who pays for better seats to get your stuff placed all over the plane but that was the worst experience I’ve ever had flying with anyone.
Better than expected. Staff were friendly and nice on both flights.
There was no one at the counter to assist with our check in. The app didn’t work, so I arrived at the airport with time to check in and I couldn’t because no employees were there. When I finally got someone on the phone, it was inside the 60min rule and they said I could no longer check in and they could sell me another ticket. We had to scramble and pay an additional $800 for tickets and THEN AFTER (about 60 min from my original convo with customer service and 10min after original departure time) I had boarded my new flight, there was email saying my original flight from Frontier was delayed and leaving 2hr 50min later, but I STILL wouldn’t have been able to check in. Which means customer service should have been able to see it and let me check in because I was well within my check in time. When I call Frontier, they hang up on me. So their app didn’t work and they employees left and they take zero responsibility or assistance with their “customer service”
Terrible. Flight cancelled with no reasoning and no flights to rebook. Employees were useless and did nothing to help. Did not even know where to retrieve luggage from the cancelled flight. Flyers beware.