If you fly regularly, you already know the pattern. You board feeling fine and land congested, tired, or full-on sick a few days later. Frequent flying exposes you to recirculated air, extreme dryness, disrupted sleep, and constant stress, all of which challenge your immune system.
I created Pre-Flite because I lived this reality for years. As a Navy Air Rescue Swimmer, I spent a full year on a COVID deployment with no ports. As an ultra runner and former Team USA athlete, I regularly travel for races and training. Staying healthy on the move became non-negotiable.
Why Frequent Flyers Get Sick More Often
Airplane cabins typically have humidity levels under 20%. This dries out the mucous membranes in your nose and throat, your body’s first line of defense. Add pressure changes, recycled air shared with hundreds of people, and the physical stress of travel, and your immune system has more work to do.
Key Nutrients That Actually Help
The most useful nutrients for travel immunity include:
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Vitamin C for immune cell function and antioxidant support
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Zinc for immune cell development and recovery
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B vitamins for energy and stress resilience
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Electrolytes to combat dehydration
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Prebiotics to support gut health (where a large portion of your immune system lives)
Why I Built PreFlight This Way
Most travel supplements are either too weak, loaded with sugar, or require mixing multiple products. I wanted one clean packet that delivered hydration + immune support in a form that actually fits real travel. PreFlight was designed from my own “hydration cocktail” that kept me healthy through Portillo’s doubles, military service, high-altitude treks, and 100-milers.
How to Use It for Maximum Protection
Take one packet 30–60 minutes before boarding. Continue hydrating with water throughout the flight. Many frequent flyers also take it the day before and the day after travel for extra support.
If you fly often, your immune system needs consistent help. Pre-Flite was built for exactly that.
Ready to fly healthier?