Weather Diversion

Improving Flight Reliability

Airlines serving SUN have dramatically improved their flight reliability over the past few years with new technology. 
In winter 2020/21, over 95% of flights operated at SUN as scheduled.
And, although there will still be times when the weather is just too inclement for air travel at SUN, don't worry. 
We've got your back, we've got your bags, and we'll get you where you need to go!

SUN winter diversion bussing in effect Nov 1, 2021 - April 15, 2022

Occasionally winter weather will affect flights into and out of our airport (SUN). But if that happens, our community has a special diversion busing program in place that allows passengers to arrive and/or depart from an alternative nearby airport on the same schedule. If you are traveling to SUN this winter, please make sure you are informed about the diversion busing operations for your airline, which are outlined below.

We are continuing to collectively work to make the experience as pleasant as possible for SUN air travelers. And most importantly, you do get to your destination! We are very fortunate here in Sun Valley – there are only a few airports in the US where airlines offer this extraordinary level of service for travelers impacted by weather.

IF YOU ARE DIVERTED ON YOUR INBOUND TRIP TO SUN VALLEY – INTO TWIN FALLS (TWF) ON DELTA OR UNITED AND BOISE (BOI) ON ALASKA – this is the video ( the Delta/United version) that will be shown on the bus ride which describes the process and the steps to take regarding checking in for your outbound flight in case that flight is diverted by weather as well.

How our winter flight diversion
Bussing program works
****MOST IMPORTANT! ****
Please ensure you have the correct email and cell phone contact information (that you use while traveling) in your airline ticket record. 

This is what the airlines will use to alert SUN passengers in advance of a change in flight status and let them know what time to get to the SUN airport in Hailey to catch the bus transportation to Twin Falls or Boise airport if their outbound flight is going to be diverted to an alternative airport.  

Inbound Flights to SUN: 

If you are diverted on your inbound flight to an alternative airport, you will be provided with complimentary and comfortable motorcoach transportation to SUN.

  • Delta and United flights divert to Twin Falls, ID- 60 miles south of SUN

  • Alaska flights divert to Boise, ID – 150 southwest of SUN

Outbound Flights from SUN:

Call the local SUN Winter Operations Hotline for your airline at least 4-6 hours in advance of your scheduled flight departure to confirm flight and busing status.

Please listen carefully to the information provided and plan accordingly. If your flight is being diverted outbound, you must get to the airport on time to catch the bus to an alternative airport. Times will be provided on the message.  

Important note regarding traveling unaccompanied minors (UMNR):

For Delta & United: Per airline policy, no UMNR is allowed to travel via ground transportation without an airline employee escort, and since this is not a feasible option in cases of diversion busing to/from SUN, the UNMR will not be allowed to ride the bus and alternative transportation arrangements to/from the airport where the diversion takes place will need to be made by the parent, guardian or responsible adult.

For Alaska: Children may not travel alone to/from Sun Valley (SUN) between December 1 – April 1, annually.

Do not rely on airline schedule apps for flight departure information as they will not provide information on whether flights are being diverted.
*You must call the local airline Winter Operations Hotline listed below for SUN flight status and diversion busing details.* 
SUN Winter Operations Hotline: 208.788.1281, #4

Please call 6 hours before your scheduled SUN departure time for the latest recorded updates on flight status. Flights are diverted to Boise (BOI).

News for Alaska flights           

Alaska’s proprietary RNP Approach Procedure has greatly increased reliability for SEA flights to/from SUN which means very few weather diversions! 

SUN Winter Operations Hotline: 208-788-4887

Please call 4 hours before your scheduled SUN departure time for the latest recorded updates on flight status. Flights are diverted to Twin Falls (TWF) 

SUN Winter Operations Hotline: 208-788-4887

Please call 4 hours before your scheduled SUN departure time for the latest recorded updates on flight status. Flights are diverted to Twin Falls (TWF) 

After the busing program ends in the spring

Delta will fly into Friedman Memorial Airport (SUN) from Salt Lake City (SLC) and if the conditions do not allow for landing at SUN, the plane will divert back to SLC rather than to Twin Falls (TWF). If the inbound flight is not able to land at SUN, the outbound flight from SUN will be canceled and passengers will be rebooked on the next available flight.

If for some other reason a SUN flight is canceled, passengers will be assisted by local agents or they can call the airline’s reservations # for help in re-accommodation on the next available flight.