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Key Lime Air is an airline based in the United States. It flies passenger flights, as well as charter and cargo. The airline operates flights as Denver Air Connection, which is its subsidiary. It flies to several destinations across the US, focussing on destinations within Colorado, Nebraska, New Mexico and Minnesota.

When booking Key Lime Air flights through Alternative Airlines, to make it easy for you, we display flights as Key Lime Air. Although, the flight may be operated by its subsidiary, Denver Air Connection.

The airline launched in 1997. In the beginning, it only flew cargo flights, mainly flying throughout the Rocky Mountain region. However, with the launch of Denver Air Connection, it turned to scheduled flights and has grown its network out. Today, the airline has the largest single feeder aircraft network in the U.S and has also established itself as a recognisable scheduled airline with Denver Air Connection, as well as a thriving passenger air charter service under the Key Lime Air brand.

Key Lime Air is based at Centennial Airport in Englewood, Colorado, which positions the airline perfectly to offer a convenient service to the West Coast, Central or East Coast of the United States. As well as operating widely to destinations across the U.S, the airline also flies to Canada and beyond. The airline flies to all these destinations as a charter but as of yet, not on a scheduled basis.

Top Top: If you are looking to book a flight within the United States, check out our guide to domestic flights within the U.S., which has information including which airlines operate scheduled passenger flights, popular routes, and FAQs.


Key Lime Air can fly to many destinations as a charter airline, it mainly focuses on flights throughout the US and to Canada. It doesn't fly to as many destinations as on a regular schedule.

These are the destinations that Key Lime Air flies to on a scheduled basis, operated by Denver Air Connection:

  • Alliance (AIA)
  • Clovis (CVN)
  • Denver (DEN)
  • Minneapolis (MSP)
  • Telluride (TEX)
  • Thief River Falls (TVF)

Baggage Policy

When you fly with Key Lime Air, you are only permitted carry-on baggage and a personal item. Checked baggage is not permitted.

Carry-on Baggage

Passengers are given a free carry-on baggage allowance of one personal item. This must fit within the dimensions of 18" x 14" x 8" and must be stored underneath the seats on the aircraft.

Checked Baggage

There's no free checked baggage allowance included in the price of the ticket.

This means that is passengers want to carry any baggage on top of their personal item, they must pre-purchase baggage.


Find out what check-in options are available for flights with Key Lime Air.

Online Check-In

There's no online check-in for Key Lime Air or Denver Air Connection at this time.

Airport Check-In

Passengers must check in at the airport for their flight. This can be done by visiting one of the check-in agents at the airport of departure. Check-in times for each airport are as follows:

  • Alliance Municipal Airport (AIA) — closes 30 minutes before departure time
  • Centennial Airport (APA) — closes 30 minutes before departure time
  • Clovis Municipal Airport (CVN) — closes 45 minutes before departure time
  • Denver International Airport (DEN) — closes 1 hour before departure time
  • Grand Junction Regional Airport (GJT) — closes 30 minutes before departure time
  • Minneapolis/St. Paul International Airport (MSP) — closes 1 hour before departure time
  • Telluride Regional Airport (TEX) — closes 45 minutes before departure time
  • Thief River Falls Regional Airport (TVF) — closes 45 minutes before departure time

Cabin Classes

The airline flies with small aircraft that has one standard class of seating. It's technically Economy Class, although the seating is much more similar to Business Class. Passengers can expect a premium VIP experience, especially on the Embraer and Dornier aircraft.

The airline flies with an open seating service, which means that passengers are not pre-assigned seats and can choose their own seat as they board on a first-come-first-serve basis.

Seating and Facilities

Metro 23: 1-1 seating, overhead lighting, no flight attendant, no galley (food/drink services), no lavatory available.

Embraer Brasilia: 2-1 seating, arm and headrests, overhead lighting, deeply padded seating, one flight attendant, overhead storage, galley services available, lavatory available.

Dornier 328 Jet: 2-1 seating, arm and headrests, overhead lighting, deeply padded seating, one flight attendant, overhead storage, galley services available, lavatory available.


WiFi is not available.

Food and Drink

Food and drink are complimentary with the airline.

Passengers can order drinks once the plane is airborne, with a selection of soft drinks, tea, coffee and water.

A selection of snacks is available for passengers to pick from, including chocolate and candies, as well as a range of savoury snacks like pretzels, peanuts, potato chips and more. Depending on how full the flight is, passengers can help themselves to as many snacks as they like.

Frequent Flyer Program

The airline is not part of a frequent flyer program.

In-Flight Entertainment

The airline does not provide an in-flight entertainment system. However, each passenger is given a magazine to read during their flight, which is available in the seat-back pocket of the seat in front of them.

Airline Alliance

The airline is not part of an airline alliance.

Alternatives to Key Lime Air

The following airlines operate similar routes as Key Lime Air:

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Hub Airport

Denver International Airport

Key Lime Air’s main base and hub are at Denver International (DIA), an international airport in the Western United States. Key Lime Air has been flying out of Denver International for most of its time as an airline. It also has a secondary hub at Centennial Airport (APA). The airport itself has six runways but just one terminal building. The terminal is split into three concourses named A, B and C. Key Lime Air flies from Concourse A which is where the majority of domestic flights depart from.

The airport is a hub for United Airlines and Frontier Airlines and is also used as a base for Southwest Airlines.


The airline’s fleet consists of the following aircraft:

  • The Embraer Brasilia, which has a capacity of up to 30 passengers.
  • The Metro 23, which has a capacity of up to 18 passengers.
  • The Dornier 328 Jet, which has a capacity of up to 30 passengers.

Cancellation Policy

Key Lime Air sells two different ticket fares that it sells, with two different cancellation policies. The two different fares are Flexible and Non-Refundable.

The Flexible fare allows passengers to cancel their flight for a full refund, as long as it is cancelled at least 60 minutes before scheduled flight departure time.

The non-refundable fare can be cancelled but cancellation fees apply and passengers will not receive a full or — most times — any type of refund.

At Alternative Airlines, you can turn a non-refundable Key Lime Air flight ticket into a refundable one by purchasing our Cancellation Protection. Cancellation Protection covers you for a full refund on any Key Lime Air flight if you need to cancel your flight for any of the reasons set out in the terms and conditions. This includes reasons such as extreme weather, scheduled airline failure, relocation for work and more.