If you are arranging a private jet to Sun Valley Idaho for the Allen and Co conference 2026, start the conversation now — not in June. The week of July 7–11 turns Friedman Memorial (SUN) into one of the tightest single-runway operations of the summer, and every operator who flies the Rockies knows it. The aircraft you want, the slot you need, and the FBO ramp space you assume will be there are all finite resources that weekend. They get spoken for early.
This is not a route problem. It is a saturation problem, an altitude problem, and a client-mix problem all at once. Below is what actually happens on the ground at SUN during Allen & Co. week, why the airport behaves the way it does, and what to ask your flight department before you commit to a tail.
Why SUN Is Hard, Even Without the Conference
Friedman Memorial sits at 5,318 feet, with a single runway — 13/31, 7,550 feet long — wedged into a north-south valley between the Pioneer and Smoky mountain ranges. There is no parallel, no crosswind runway, no alternate close enough to be casual about. Hailey (the town SUN actually serves) is twelve minutes north of the field by car. Ketchum and the resort core sit just beyond that.
The terrain dictates everything. SUN runs a special-qualification approach — operators have to be specifically authorized to fly into the airport, with crew training on the visual procedures into runway 31 and the RNAV approaches that thread the valley. Not every Part 135 certificate covers SUN. When you ask an operator if they can quote the trip, the right follow-up is whether their crew is current on SUN itself, not just type-rated on the aircraft.
Then there is altitude. At 5,318 feet field elevation, density altitude on a warm July afternoon can push past 8,000 feet. That is a real performance hit for large-cabin aircraft, particularly heavies trying to depart with full fuel and a full cabin for a transcon leg back east. A Gulfstream G650 or Global 7500 leaving SUN at 3 p.m. on a 90-degree day will often be planning a fuel stop in Denver, Salt Lake, or Rapid City — not because they cannot reach the destination, but because they cannot lift the fuel to do it nonstop off that runway in those conditions. This catches first-time SUN passengers off guard. Your eastbound leg home is not the same airplane planning as your westbound leg in.
The Single-Runway Reality
One runway means one direction of arrivals at a time, and weather in the valley moves fast. Afternoon thunderstorms in July are not rare. A go-around at SUN is not a routine maneuver — terrain limits the missed approach options, which is part of why the special qualification exists. When weather closes the field, the diversion airports are Twin Falls (TWF, an hour and change of ground), Boise (BOI, two and a half hours), or Idaho Falls (IDA). None of them are close. A diversion during Allen & Co. week, with every car service in the valley already double-booked, becomes a six-hour problem fast.
What Allen & Co. Week Actually Looks Like at SUN
The conference draws roughly three hundred attendees — chief executives of every major tech, media, and finance firm you can name, plus their families, plus their security. Each of those principals tends to arrive on a private aircraft. Many bring two: a primary for the family and a secondary for staff or to reposition. The math is unforgiving. SUN's main ramp and the FBOs — Atlantic and Jackson Jet Center — cannot park three hundred aircraft. Most of them are not staying at SUN at all.
During conference week, the standard operating pattern is drop-and-go. Crews fly in, deplane the principals, and immediately reposition the aircraft to a parking field with capacity — most commonly Boise (BOI), Twin Falls (TWF), Salt Lake (SLC), or Hailey-area satellite arrangements that get spun up just for the week. On pickup day, the reverse: crews fly the empty aircraft back to SUN, load, and depart. This doubles the flight time billed against the trip and triples the coordination complexity. It is also why quoted prices for Sun Valley that week look nothing like quotes to the same airport in October.
Slot management gets layered on top. The airport authority and the FAA coordinate arrival and departure slots during peak conference hours, particularly Tuesday afternoon (arrival surge) and Friday morning (departure surge). Miss your slot and you are holding — sometimes airborne, sometimes on the ground at your origin. Operators who fly Allen & Co. every year file slot requests weeks in advance. Operators who do not, find out the hard way.
Security and Discretion
The client mix that week is unlike any other private aviation event in North America. Cannes, Davos, the Monaco Grand Prix — all of them have heavier yacht and ground components. Sun Valley is almost entirely an aviation event. Which means the FBOs are managing simultaneous arrivals of principals whose security details do not want to share a lounge, whose schedules are not to be discussed, and whose advance teams have already walked the ramp. Discretion at SUN that week is not a marketing line. It is operationally enforced. FBO staff are briefed. Photography is restricted. The handlers who work that week have done it for years and know which principal does not pass which other principal in a hallway.
If you are flying in as a guest, an investor, or a family member of an attendee, your aircraft and crew get folded into that environment. The operator you choose needs to understand the protocol. A crew that has never been to SUN during conference week will get the procedural side right and the social side wrong — and the social side is what gets remembered.
The Twelve-Minute Drive That Decides the Week
SUN to the Sun Valley Resort is about twelve minutes in light traffic. During conference week it can be twenty-five. Add the time it takes to clear the FBO ramp, load luggage, and stage the vehicle, and the door-to-door from wheels-down to resort check-in is usually thirty-five to forty-five minutes. That is fast by private aviation standards — and it is the part most likely to break.
Ground in the Wood River Valley is a small market. There are a finite number of black SUVs and Sprinter vans in Hailey and Ketchum, and during conference week most of them are pre-contracted to attendees who booked in March. Showing up the week before expecting to find a vehicle is how trips fall apart. We pre-stage ground transportation for SUN clients well in advance, and during Allen & Co. week we will often bring vehicles in from Boise or Salt Lake to guarantee capacity. The chauffeur knowing the FBO entrance, the resort's preferred drop point, and the back way around if Main Street is closed for a motorcade — that is the difference between a smooth arrival and forty-five minutes of standing on a ramp with luggage.
If the trip extends past the conference into a stay at one of the larger compounds north of Ketchum, the private residences on the Trail Creek or Warm Springs side give you space the resort hotel cannot. Worth considering if the group is more than four and the visit runs more than two nights.
What to Ask Before You Commit
This is the part most first-time SUN clients skip, and it is where the trip is either set up correctly or quietly compromised.
Has this specific crew flown into SUN, and when? Not the operator — the crew. Currency on the SUN approaches matters in a way it does not at most airports.
Where will the aircraft park during the stay? If the answer is vague, the answer is wrong. You want a specific reposition plan, the FBO at the parking field, and the dead-leg time built into the quote so there are no surprises on the invoice.
What is the departure plan for performance? A heavy jet leaving SUN at 4 p.m. on a warm day with a transcon mission is a planning exercise. If the operator has not already raised fuel-stop possibilities, they have not run the numbers yet.
Is the slot filed? During Allen & Co. week, this is not a courtesy question. It is the question.
What is the diversion plan? If weather closes SUN on arrival day, where do you land, and who is meeting you there with ground? An operator who has flown this week before has a written answer. One who has not will improvise — badly.
We source aircraft from operators we have flown with directly, and for SUN week specifically we shortlist crews with prior conference-week experience. If you want to walk through the specifics of your dates and party, reach out and we will lay out what is actually available rather than what sounds available.
FAQ
How early should I book a private jet for the Allen & Co. conference?
For the July 7–11, 2026 window, the right time to start was six months out. The realistic minimum is sixty to ninety days. Inside thirty days during conference week, you are choosing from what is left rather than what is best — and the aircraft most suited to SUN's runway and altitude profile get spoken for first.
Can a Gulfstream G650 or Global 7500 fly nonstop from SUN to the East Coast?
It depends on the day. Westbound into SUN, almost always yes. Eastbound out of SUN in July, often no — high density altitude limits the fuel the aircraft can lift off a 7,550-foot runway at elevation. A fuel stop in Denver, Salt Lake, or Rapid City is a common and entirely normal part of the plan. A good operator raises this before you book, not after.
Where do private jets park during Allen & Co. week if SUN is full?
Most aircraft drop passengers at SUN and reposition empty to Boise (BOI), Twin Falls (TWF), Salt Lake City (SLC), or Idaho Falls (IDA) for the duration of the conference, then return on pickup day. This is standard for the week and the dead-leg time is built into the quoted trip.
Is SUN a special-qualification airport?
Yes. Friedman Memorial requires operators and crews to be specifically authorized for the airport, with training on the valley approaches and the terrain-driven missed approach procedures. Not every charter operator holds SUN authorization, and not every captain at an authorized operator is current. Confirm both before you book.
How long is the drive from SUN to the Sun Valley Resort?
About twelve minutes in normal traffic, twenty to twenty-five during conference peak hours. Door-to-door from wheels-down to resort check-in typically runs thirty-five to forty-five minutes once FBO processing and luggage are accounted for.
What makes Allen & Co. logistically harder than other private aviation events?
The concentration. Nearly every attendee arrives by private aircraft into one single-runway airport at altitude, within a forty-eight-hour window, with security details, slot restrictions, and limited ramp and ground capacity. Cannes spreads aircraft across Nice, Cannes-Mandelieu, and St. Tropez. Davos uses multiple airports across Switzerland. Sun Valley uses SUN. That is the entire constraint.
If you are flying in for the conference or visiting the valley that week as a guest, the planning window is closing. Tell us the dates and the party size and we will tell you honestly what the week looks like from here.
