Spirit - Houston Airport (IAH)

Table of contents: Terminal Arrivals and Departures Check-in General Information and contact Punctuality and delays Destinations Served On Time performance: 73 We have calculated the percentage of flights that arrived within 15 minutes of their scheduled time, or earlier, based on real flight data from the last 3 months. More about punctuality and delays

Terminal

Arrivals Terminal:

Spirit operates both in Terminal A and in Terminal E.

Departures Terminal:

Spirit uses Terminal A at Houston Airport (IAH).

Arrivals and Departures

Follow the links below in order to see all the flights scheduled for Spirit

- Spirit Arrivals - Spirit Departures

Check-in

In order to check in for your flight at Houston Airport (IAH), go to the terminal where your flight departs from, or follow the instructions provided in your ticket.

General Information and contact

- IATA Code: NK - Website: www.spirit.com/Default.aspx - Phone number: 1-801-401-2222 - Phone number Lost Baggage: 1-281-233-3444. For items lost in the plane. (Contact: 1-281-233-3344)

Punctuality and delays

We have gathered data from recent months and present below an analysis of how timely the flights have been. In terms of On-Time Performance, by analyzing the flight data from the last three months, spanning from November 09, 2025 to February 08, 2026, we have obtained these figures. Total number of flights: 1895 On Time: 1378 ( 73 % ) Moderate Delay: 153 ( 8 % ) Significant Delay: 162 ( 9 % ) Major Delay: 201 ( 11 % ) Canceled: 0 ( 0 % ) Diverted: 1 ( 0 % ) Average Delay: 22 minutes. Delays analyzed by Weekday: We have gathered available data from last six months, spanning from August 09, 2025 to February 08, 2026. Next, you can observe the results broken down by day of the week: number of flights analyzed, on-time performance per day, and average delay per day. Delays analyzed by Month: We have gathered available data from last twelve closed months, spanning from February 02, 2025 to January 31, 2026. Next, you can observe the results broken down by month: number of flights analyzed, on-time performance per month, and average delay per month.

Destinations Served

Spirit currently serves a variety of destinations from Houston Airport (IAH):To see the destinations and their flight frequency, please select the country.

Guatemala - Guatemala City (GUA): Tuesday, Thursday, Sunday Honduras - San Pedro Sula (SAP): Monday, Wednesday, Friday, Saturday Mexico - Cancun (CUN): Monday, Thursday, Friday, Saturday, Sunday United States of America - Atlanta (ATL): Daily- Baltimore (BWI): Daily- Chicago (ORD): Daily- Detroit (DTW): Wednesday, Thursday, Friday, Saturday, Sunday- Fort Lauderdale (FLL): Daily- Las Vegas (LAS): Daily- Los Angeles (LAX): Daily- Miami (MIA): Daily- New York (LGA): Daily- Newark (EWR): Monday, Thursday, Friday, Saturday, Sunday- Orlando (MCO): Daily

The information provided above does not include details about seasonal flights that are not currently being served at this moment, which means that only the flights currently in operation are covered in the information provided.