Let's be honest – as infrequent fliers, Missy and I used to treat flying like a survival exercise. We'd board the plane, hunker down, and hope for the best. But after getting knocked out by a nasty cold following our anniversary trip to Seattle, we decided to get serious about learning how to stay healthy while flying. We reached out to Dr. Sarah Chen, a travel medicine specialist, and her advice has been a game-changer for our 2-3 annual trips.
The reality is that planes aren't the germ factories we once thought they were (thanks to improved air filtration systems), but there are still plenty of ways to pick up bugs during travel. The key is being proactive rather than reactive. Here's what we've learned about staying healthy in the air.
Pre-Flight Preparation: Your First Line of Defense
Dr. Chen emphasized that how to stay healthy while flying actually starts days before you leave home. "Your immune system needs to be in fighting shape before you even step foot in the airport," she told us.
Get Quality Sleep Leading Up to Travel This one hit home hard. Before our trip to Colorado last winter, I was pulling late nights trying to finish work projects. Big mistake. Dr. Chen explained that sleep deprivation can reduce your immune response by up to 70%. Now we make it a point to get 7-8 hours of sleep for at least three nights before traveling.
Hydrate Early and Often Missy started what we call "pre-loading" water 48 hours before flights. The goal is to arrive at the airport already well-hydrated rather than trying to catch up during the flight. We each aim for an extra 16-20 ounces of water daily in the days leading up to departure.
Consider Immune Support Supplements Our doctor gave us the green light to start taking vitamin C (1000mg) and zinc (15mg) three days before travel. We're not supplement fanatics, but this simple addition seems to help. Just check with your own healthcare provider first – what works for us might not be right for everyone.
Pack a Health Kit We now travel with a small bag containing hand sanitizer (at least 60% alcohol), disinfecting wipes, throat lozenges, and a small bottle of saline nasal spray. The Purell Advanced Hand Sanitizer has become our go-to because it's TSA-compliant and actually works.
During the Flight: Smart Strategies That Work
Here's where we learned most of our bad habits were actually making things worse. Dr. Chen's in-flight advice was eye-opening.
Master the Art of Strategic Hydration The classic advice is to drink 8 ounces of water per hour of flight time, but Dr. Chen gave us a more practical approach: drink water consistently but stop about 90 minutes before landing to avoid that uncomfortable rush to the bathroom during descent. We usually bring empty water bottles (like the Hydro Flask 21-oz) and fill them after security. Airport water is perfectly safe, and this saves money while ensuring we have enough.
Be Smart About Air Circulation Turn on your overhead air vent and point it slightly in front of your face, not directly at you. This creates an air curtain that can help deflect airborne particles. We used to think the recirculated air was the enemy, but Dr. Chen explained that modern aircraft use HEPA filters that remove 99.97% of particles. The real risk comes from surfaces and close contact with other passengers.
Wipe Down Your Space (But Don't Go Overboard) We use Clorox disinfecting wipes on the obvious high-touch surfaces: armrests, tray table, seat belt buckle, and entertainment screen. But Dr. Chen warned against obsessive cleaning – it can actually dry out your skin and make small cuts that invite bacteria.
Keep Your Hands Away From Your Face This sounds simple but it's surprisingly hard. Missy started wearing a light hand cream with a distinct smell (we like Bath & Body Works aromatherapy lotion) as a reminder. Every time she goes to touch her face, the scent alerts her to stop.
Recovery and Post-Flight Care
What you do after landing can be just as important as what you do during the flight when it comes to how to stay healthy while flying.
Prioritize Sleep and Nutrition Fight the urge to power through jet lag or jump straight into vacation activities. We learned this the hard way in Portugal when we tried to sightsee immediately after a red-eye flight. Now we build in recovery time and focus on getting proper sleep and nutritious meals.
Continue Hydrating The dehydration from flying doesn't end when you land. We make it a point to drink extra water for 24-48 hours after a flight, especially if we're dealing with time zone changes.
Watch for Symptoms Dr. Chen taught us to monitor ourselves for 5-7 days after travel. If we start feeling run down or notice early cold symptoms, we take it seriously and rest up rather than pushing through.
Consider Nasal Irrigation Using a neti pot or saline rinse after flying helps clear out any particles or irritants that might have accumulated during the flight. We use the NeilMed Sinus Rinse kit – it's travel-friendly and surprisingly effective.
The Bottom Line
Learning how to stay healthy while flying doesn't require becoming a germaphobe or spending a fortune on gadgets. The most effective strategies are often the simplest: stay hydrated, get adequate sleep, practice good hand hygiene, and listen to your body.
Since implementing Dr. Chen's advice, we've completed six flights without getting sick – a personal record for us. The key is consistency and starting your health routine well before you reach the airport.
Quick Takeaway Checklist:
- Sleep well for 3+ nights before travel
- Hydrate extra in the 48 hours before flying
- Pack hand sanitizer, wipes, and throat lozenges
- Use overhead air vents strategically during flight
- Wipe down high-touch surfaces in your seat area
- Avoid touching your face
- Continue hydrating and prioritize rest after landing
- Monitor your health for a week post-travel
Remember, as infrequent fliers, we don't need to become travel health experts overnight. But implementing these doctor-approved strategies has made our limited travel experiences much more enjoyable – and kept us healthier in the process.