Delta has received complaints about rude customer service, such as a passenger being reduced to tears after asking about an upgrade. Spirit Airlines, on the other hand, is often compared to a greyhound bus in the sky, which implies a generally low level of service. While both airlines have issues, the specific experiences may vary widely.

Spirit Airlines is notorious for its cramped seating arrangements, often being referred to as the 'greyhound bus of the sky.' Delta also has economy seating that can feel cramped, but it generally offers more seat space compared to Spirit.

Spirit Airlines generally has a worse reputation overall, often being criticized for its poor service, cramped seats, and numerous additional fees. Delta, while also having its share of customer service issues, is generally considered to be a step above Spirit in terms of overall experience.

Spirit Airlines is often referred to as the 'Greyhound bus of the sky.' It is a low-cost carrier that offers budget-friendly flights across the United States and to various international destinations.

As of now, there are no user-generated pros and cons for flying with Spirit Airlines. Generally, the pros of flying with Spirit Airlines include low ticket prices and various flight options. The cons often mentioned are additional fees for luggage and in-flight amenities, and sometimes less legroom and comfort compared to other airlines.

Spirit Airlines flies to a wide range of destinations across the United States, Latin America, and the Caribbean. Specific routes can be checked on their official website.

Spirit Airlines charges additional fees for checked baggage, carry-on bags, and even for selecting seats. It is recommended to review their baggage policy on their official website before booking.

Spirit Airlines does not offer a built-in in-flight entertainment system on their planes. Passengers are encouraged to bring their own devices and entertainment for the duration of the flight.

Currently, there are no user-generated pros and cons for Delta.

Delta is an airline company. According to the description provided, it is noted as 'Because life is a nightmare.' For more information, you can visit their website at delta.com.

Yes, you can request an upgrade on Delta flights. However, it may not always be granted. According to a user comment, asking for an upgrade resulted in a negative experience where they were told they were entitled and ended up crying in economy class.