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Big Sky Airport (KEKS)

Plan My Flight

KEKS ICAO

EKS IATA

Ennis City

4,700 ft Longest Runway

More about Big Sky Airport

Big Sky Airport (KEKS/EKS) is the private-charter gateway in Ennis, Montana for travelers positioning to Bozeman and the surrounding mountain country. For clients who want the itinerary to begin close to the quieter side of southwest Montana, the field keeps the arrival focused and personal from the first step off the aircraft.

The appeal is scale. At KEKS, the handoff from aircraft to ground transportation can be arranged without the rhythm of a commercial gateway, with luggage, passengers, and onward plans handled around a single private itinerary. That matters in Ennis, where the setting is part of the reason to arrive here in the first place.

Route planning through the airport centers on Bozeman, with charter pairs spanning Aspen, Atlanta, Chicago, Dallas, Los Angeles, Miami, New York, Scottsdale, Toronto, Vancouver, London, Paris, Milan, Geneva, Tokyo, Sydney, Nassau, Cabo San Lucas, and other requested city pairs. The field’s longest runway is 4,700 ft, a practical planning detail your charter advisor will review early alongside passenger count, luggage, season, and aircraft sourcing. Its role is not to make assumptions from the runway number, but to build the right plan around it.

Bozeman Yellowstone International Airport (KBZN), Mission Field Airport (KLVM), Yellowstone Airport (KWYS), and Bert Mooney Airport (KBTM) also serve the same destination set. A private traveler may still choose KEKS when the trip is deliberately oriented around Ennis and this field’s own local access, rather than starting the journey through a broader regional gateway.

Ennis gives the arrival a distinctly Montana sense of place: open valley, big-sky light, and a slower transition from flight deck to road. The airport fits that mood best when the goal is a precise, low-friction arrival rather than an oversized airport experience.

Advisor Note

“We confirm the runway planning picture first at KEKS, including the 4,700 ft longest runway, then source aircraft around the full passenger and luggage profile. Firm dates early help preserve more suitable options.”

Quick Facts

Big Sky Airport at a glance

ICAO: KEKS
IATA: EKS
Location: Ennis, Montana, United States
Longest runway: 4,700 ft

Destinations served by KEKS

Private jet charter to Big Sky Learn More Private jet charter to Bozeman Learn More

Other airports serving the same destinations as KEKS

Big Sky Airport is not the only airport recorded against these destinations. The fields below serve the same cities — weigh them against the facts above before deciding where to fly.

Butte, Montana, United States Bert Mooney Airport

9,001 ft longest runway
Also serves Big Sky, Bozeman

KBTM Bozeman, Montana, United States Bozeman Yellowstone International Airport

9,003 ft longest runway
Also serves Big Sky, Bozeman

KBZN Livingston, Montana, United States Mission Field Airport

5,701 ft longest runway
Also serves Big Sky, Bozeman

KLVM West Yellowstone, Montana, United States Yellowstone Airport

8,400 ft longest runway
Also serves Big Sky, Bozeman

KWYS

Planning a charter through KEKS

Confirm the airport: Quotes for this trip are issued against Big Sky Airport (KEKS). Check that code against your itinerary before the booking is confirmed.
Share the wider itinerary: Tell your advisor where the trip begins and ends around Ennis, Montana, United States, and the schedule is built to fit it.
Runway on record: The longest runway recorded for this airport is 4,700 ft. Your advisor confirms the aircraft with the operator for every trip.

Popular routes through KEKS

Classes shown are the range fit for each leg, not a restriction at KEKS.

Route	This airport	Typical aircraft	Flight time	Distance
Aspen to Bozeman	Arriving Bozeman	Light Jets · Midsize Jets	1h 13m – 1h 22m	437 nm
Atlanta to Bozeman	Arriving Bozeman	Super Midsize Jets · Heavy Jets	3h 15m – 3h 46m	1,420 nm
Bozeman to Aspen	Departing Bozeman	Light Jets · Midsize Jets	1h 13m – 1h 22m	437 nm
Bozeman to Atlanta	Departing Bozeman	Super Midsize Jets · Heavy Jets	3h 15m – 3h 46m	1,420 nm
Bozeman to Cabo San Lucas	Departing Bozeman	Super Midsize Jets · Heavy Jets	3h 9m – 3h 39m	1,372 nm
Bozeman to Charlotte	Departing Bozeman	Super Midsize Jets · Heavy Jets	3h 27m – 3h 59m	1,510 nm
Bozeman to Chicago	Departing Bozeman	Midsize Jets · Super Midsize Jets	2h 25m – 2h 47m	1,015 nm
Bozeman to Dallas	Departing Bozeman	Midsize Jets · Super Midsize Jets	2h 25m – 2h 47m	1,019 nm
Bozeman to Geneva	Departing Bozeman	Ultra Long Haul Jets	9h 24m – 10h 57m	4,368 nm
Bozeman to Honolulu	Departing Bozeman	Heavy Jets · Ultra Long Haul Jets	5h 57m – 6h 54m	2,709 nm
Bozeman to Houston	Departing Bozeman	Midsize Jets · Super Midsize Jets	2h 51m – 3h 17m	1,222 nm
Bozeman to Las Vegas	Departing Bozeman	Midsize Jets · Super Midsize Jets	1h 34m – 1h 47m	609 nm
Bozeman to London	Departing Bozeman	Ultra Long Haul Jets	8h 31m – 9h 56m	3,947 nm
Bozeman to Los Angeles	Departing Bozeman	Midsize Jets · Super Midsize Jets	1h 54m – 2h 11m	772 nm
Bozeman to Mexico City	Departing Bozeman	Super Midsize Jets · Heavy Jets	3h 49m – 4h 25m	1,688 nm
Bozeman to Miami	Departing Bozeman	Super Midsize Jets · Heavy Jets	4h 15m – 4h 56m	1,899 nm
Bozeman to Milan	Departing Bozeman	Ultra Long Haul Jets	9h 39m – 11h 15m	4,489 nm
Bozeman to Minneapolis	Departing Bozeman	Midsize Jets · Super Midsize Jets	1h 52m – 2h 7m	748 nm
Bozeman to Monterey	Departing Bozeman	Midsize Jets · Super Midsize Jets	1h 49m – 2h 5m	732 nm
Bozeman to Napa Valley	Departing Bozeman	Midsize Jets · Super Midsize Jets	1h 42m – 1h 56m	671 nm
Bozeman to Nassau	Departing Bozeman	Super Midsize Jets · Heavy Jets	4h 33m – 5h 17m	2,042 nm
Bozeman to New York	Departing Bozeman	Super Midsize Jets · Heavy Jets	3h 42m – 4h 17m	1,632 nm
Bozeman to Palm Beach	Departing Bozeman	Super Midsize Jets · Heavy Jets	4h 12m – 4h 52m	1,872 nm
Bozeman to Paris	Departing Bozeman	Ultra Long Haul Jets	8h 56m – 10h 25m	4,147 nm
Bozeman to Scottsdale	Departing Bozeman	Midsize Jets · Super Midsize Jets	1h 49m – 2h 5m	731 nm
Bozeman to St.Tropez	Departing Bozeman	Ultra Long Haul Jets	9h 43m – 11h 19m	4,518 nm
Bozeman to Sydney	Departing Bozeman	Ultra Long Haul Jets	15h 7m – 17h 39m	7,115 nm
Bozeman to Tokyo	Departing Bozeman	Ultra Long Haul Jets	9h 53m – 11h 31m	4,600 nm
Bozeman to Toronto	Departing Bozeman	Super Midsize Jets · Heavy Jets	3h 6m – 3h 34m	1,342 nm
Bozeman to Vancouver	Departing Bozeman	Light Jets · Midsize Jets	1h 24m – 1h 35m	528 nm
Cabo San Lucas to Bozeman	Arriving Bozeman	Super Midsize Jets · Heavy Jets	3h 9m – 3h 39m	1,372 nm
Charlotte to Bozeman	Arriving Bozeman	Super Midsize Jets · Heavy Jets	3h 27m – 3h 59m	1,510 nm
Chicago to Bozeman	Arriving Bozeman	Midsize Jets · Super Midsize Jets	2h 25m – 2h 47m	1,015 nm
Dallas to Bozeman	Arriving Bozeman	Midsize Jets · Super Midsize Jets	2h 25m – 2h 47m	1,019 nm
Geneva to Bozeman	Arriving Bozeman	Ultra Long Haul Jets	9h 24m – 10h 57m	4,368 nm
Honolulu to Bozeman	Arriving Bozeman	Heavy Jets · Ultra Long Haul Jets	5h 57m – 6h 54m	2,709 nm
Houston to Bozeman	Arriving Bozeman	Midsize Jets · Super Midsize Jets	2h 51m – 3h 17m	1,222 nm
Las Vegas to Bozeman	Arriving Bozeman	Midsize Jets · Super Midsize Jets	1h 34m – 1h 47m	609 nm
London to Bozeman	Arriving Bozeman	Ultra Long Haul Jets	8h 31m – 9h 56m	3,947 nm
Los Angeles to Bozeman	Arriving Bozeman	Midsize Jets · Super Midsize Jets	1h 54m – 2h 11m	772 nm
Mexico City to Bozeman	Arriving Bozeman	Super Midsize Jets · Heavy Jets	3h 49m – 4h 25m	1,688 nm
Miami to Bozeman	Arriving Bozeman	Super Midsize Jets · Heavy Jets	4h 15m – 4h 56m	1,899 nm
Milan to Bozeman	Arriving Bozeman	Ultra Long Haul Jets	9h 39m – 11h 15m	4,489 nm
Minneapolis to Bozeman	Arriving Bozeman	Midsize Jets · Super Midsize Jets	1h 52m – 2h 7m	748 nm
Monterey to Bozeman	Arriving Bozeman	Midsize Jets · Super Midsize Jets	1h 49m – 2h 5m	732 nm
Napa Valley to Bozeman	Arriving Bozeman	Midsize Jets · Super Midsize Jets	1h 42m – 1h 56m	671 nm
Nassau to Bozeman	Arriving Bozeman	Super Midsize Jets · Heavy Jets	4h 33m – 5h 17m	2,042 nm
New York to Bozeman	Arriving Bozeman	Super Midsize Jets · Heavy Jets	3h 42m – 4h 17m	1,632 nm
Palm Beach to Bozeman	Arriving Bozeman	Super Midsize Jets · Heavy Jets	4h 12m – 4h 52m	1,872 nm
Paris to Bozeman	Arriving Bozeman	Ultra Long Haul Jets	8h 56m – 10h 25m	4,147 nm
Scottsdale to Bozeman	Arriving Bozeman	Midsize Jets · Super Midsize Jets	1h 49m – 2h 5m	731 nm
St.Tropez to Bozeman	Arriving Bozeman	Ultra Long Haul Jets	9h 43m – 11h 19m	4,518 nm
Sydney to Bozeman	Arriving Bozeman	Ultra Long Haul Jets	15h 7m – 17h 39m	7,115 nm
Tokyo to Bozeman	Arriving Bozeman	Ultra Long Haul Jets	9h 53m – 11h 31m	4,600 nm
Toronto to Bozeman	Arriving Bozeman	Super Midsize Jets · Heavy Jets	3h 6m – 3h 34m	1,342 nm
Vancouver to Bozeman	Arriving Bozeman	Light Jets · Midsize Jets	1h 24m – 1h 35m	528 nm

Common questions about Big Sky Airport charter

Can I charter a private jet into KEKS for Bozeman?

Yes. Big Sky Airport serves Bozeman from Ennis, Montana, and charter routes through the field include Bozeman paired with cities such as Aspen, Atlanta, Chicago, Dallas, Los Angeles, Miami, New York, Scottsdale, Toronto, Vancouver, London, Paris, and Tokyo.

What runway detail matters for planning a charter to KEKS?

Big Sky Airport has a longest runway of 4,700 ft. Your charter advisor should review that detail early with the full itinerary, passenger count, luggage profile, and aircraft options rather than making assumptions from the runway length alone.

Why might I use KEKS instead of KBZN, KLVM, KWYS, or KBTM?

Big Sky Airport may be the better fit when the trip is centered on Ennis and you want the arrival aligned with that local setting. Bozeman Yellowstone International Airport, Mission Field Airport, Yellowstone Airport, and Bert Mooney Airport also serve the same destination set, so the choice should follow the itinerary’s on-the-ground priorities.

Which private charter routes are listed through KEKS?

Big Sky Airport supports listed charter routing between Bozeman and Aspen, Atlanta, Cabo San Lucas, Charlotte, Chicago, Dallas, Geneva, Honolulu, Houston, Las Vegas, London, Los Angeles, Mexico City, Miami, Milan, Minneapolis, Monterey, Napa Valley, Nassau, New York, Palm Beach, Paris, Scottsdale, St.Tropez, Sydney, Tokyo, Toronto, and Vancouver.

Is KEKS a customs airport for international arrivals?

Big Sky Airport is not listed as a U.S. customs port of entry, so international itineraries should be planned with an appropriate customs stop before continuing to Ennis.