Published on February 17, 2026
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Denver International Airport (DEN) faced 206 total flight delays and 9 cancellations today. The most affected airlines include Southwest Airlines (2 cancellations, 102 delays), Frontier Airlines (6 cancellations, 12 delays), and United Airlines (1 cancellation, 39 delays). Additional carriers facing operational impact include SkyWest Airlines (0 cancellations, 32 delays), Delta Air Lines (0 cancellations, 3 delays), American Airlines (0 cancellations, 5 delays), and JetBlue Airways (0 cancellations, 5 delays).
Among airports, the heaviest disruption impact centers on Denver (6 cancellations, 103 departure delays; 3 cancellations, 103 arrival delays), followed by Las Vegas – Harry Reid (1 cancellation, 4 departure delays; 1 cancellation, 3 arrival delays), Phoenix (1 cancellation, 5 arrival delays; 1 cancellation, 5 departure delays), and Philadelphia (1 cancellation, 2 arrival delays; 1 cancellation, 0 departure delays). Additional multi-delay destinations include Los Angeles (7 delays), LaGuardia (5 delays), San Diego (4 delays), and Austin (4 delays).
Southwest recorded 2 cancellations and 102 delays, representing nearly half of all delays at Denver today. This makes it the largest single contributor to the day’s operational disruption.
Frontier posted 6 cancellations and 12 delays, accounting for two-thirds of total cancellations recorded at Denver.
United experienced 1 cancellation and 39 delays, making it the second-largest contributor to overall delay volume after Southwest.
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SkyWest registered 32 delays with no cancellations, reflecting notable regional network disruption.
Delta reported 3 delays and no cancellations.
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American logged 5 delays without cancellations.
JetBlue recorded 5 delays and no cancellations.
Key Lime Air saw 6 delays, indicating regional operational impact.
Today’s disruption pattern at Denver reflects concentrated operational strain among Southwest Airlines, Frontier Airlines, and United Airlines, with additional measurable delay volumes from SkyWest Airlines, American Airlines, and Delta Air Lines. The imbalance between delay counts and cancellation counts indicates schedule compression rather than widespread network shutdown.
Denver itself appears repeatedly in both arrival and departure disruption data, with over 100 delays in each direction, suggesting aircraft rotation and crew flow constraints affecting outbound and inbound services simultaneously.
Secondary impact points include Las Vegas (Harry Reid International Airport), Phoenix Sky Harbor International Airport, and Philadelphia International Airport, each registering both cancellation and delay activity. Multi-delay destinations such as Los Angeles International Airport, LaGuardia Airport, San Diego International Airport, Austin-Bergstrom International Airport, and San Francisco International Airport further illustrate the breadth of network spread beyond Colorado.
Regional airports such as Yampa Valley, Montrose Regional, and St. George Regional also recorded elevated delay percentages relative to flight volume, signaling disproportionate effects on smaller markets.
All recorded disruptions are tied to domestic U.S. operations, with only isolated international delays noted on routes connected to Toronto, Montreal, Vancouver, and Narita.
The data reflects a concentrated operational disruption centered on Denver’s network, led primarily by Southwest in delay volume and Frontier in cancellation volume, with broader ripple effects across major U.S. hubs and regional airports.
Source: Different airports and FlightAware
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Tags: denver airport, flight cancellations, frontier airlines, southwest, US

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