A United Airlines Boeing 787-9 Dreamliner in the new blue livery, at the gate boarding passengers for an international journey.

American Airlines Airbus A319 taxiing at a US airport.

Volaris Airbus A321neo XA-VUA taxiing under stormy skies, featuring signature purple engines and sharklets.

United Airlines Boeing 737-900ER N17403 taxiing at Chicago O'Hare International Airport with distinctive split scimitar winglets in the Evo Blue livery.

United Airlines Boeing 737-800 (N26226) prepares for departure at Denver International Airport under clear blue skies.

A Southwest Airlines Boeing 737 takes flight against a clear blue sky, sporting the airline's colorful standard livery and iconic blended winglets.

Taxiing in the early morning or golden hour, this Southwest Airlines Boeing 737-800 wears the vibrant 'Heart' livery with split scimitar winglets in front of a Frontier Airlines hangar.

SkyWest Airlines Bombardier CRJ-700 (N928EV) at the gate during early morning golden hour.

United Airlines Boeing 737-900ER awaits departure at gate A14, showing the modern globe livery and signature split scimitar winglets.

Delta Air Lines Airbus A321-211 (N375DN) taxiing on the ramp with iconic sharklet winglets in view.

United Airlines Boeing 737-800 (N34217) taxiing at the airport, viewed past distinctive split scimitar winglets.

United Airlines Boeing 737-800 (N27213) taxiing at San Francisco International, sporting the globe livery with blended winglets.

CAL FIRE Tanker 121 (Lockheed C-130 Hercules, N469DA) rests at base, ready for aerial firefighting missions.

RIP Spirt Airlines. Wishing best of luck to all the Spirit crews affected by this.

A United Airlines Boeing 737-900ER taxiing in golden hour light. The aircraft sports the modern Evo Blue livery and distinctive 737NG blended winglets.

United Airlines Boeing 737-800 (N77538) at the gate, ready for boarding at a major U.S. airport.

United Express Bombardier CRJ200 (N944SW) at the gate, readying for another regional flight.

A United Express Embraer 175 (N283SY) taxiing at the gate, wearing United's globe livery, a common sight in US regional operations.

United Express Embraer 175 (N138SY) at the gate, framed by airport operations at a busy terminal.

United Express Embraer 175 (N87380) at the gate in new globe livery, readying for another short-haul US domestic mission.