What flight level do you fly at heading west?

The flight level at which you fly heading west can vary based on the specific air traffic control procedures in place for the route you are on. Generally, for flights operating under Instrument Flight Rules (IFR), westbound flights typically cruise at odd flight levels, such as 31,000 feet or 33,000 feet. However, pilots should always adhere to the altitude assignments provided by air traffic control and consider factors like weather and airspace restrictions.