What to Do If You Get Sick Before Your Flight
A clear guide on what to do if you get sick before a flight, how to decide if you're fit to travel, and how an online doctor can help.
Dr. Laura Navarro
Medical Professional

🩺 What to Do If You Get Sick Before Your Flight
Few things are more stressful than getting sick just before you're supposed to travel. Whether it's a cold, fever, or stomach upset, deciding whether to fly can be confusing — especially when you've already booked everything.
Here's a clear guide on what to do if you get sick before a flight, how to decide if you're fit to travel, and how an online doctor can help you make the right call safely.
🔹 Step 1: Evaluate Your Symptoms
Not every illness means you have to cancel your trip. Start by assessing how you feel:
- Mild symptoms (such as a runny nose or light cough) usually don't prevent you from flying
- Moderate symptoms (like fever, sore throat, or fatigue) may make travel uncomfortable or risky
- Severe symptoms (shortness of breath, chest pain, vomiting, or high fever) mean you should postpone your flight and seek medical evaluation
If in doubt, it's always best to speak with a healthcare professional before travelling.
🔹 Step 2: Check Airline and Destination Requirements
Many airlines and destinations have health policies that can affect your travel plans, for example:
- Post-infection waiting periods (after flu, Covid-19, or surgery)
- Fit-to-fly certificates requested for recent illnesses or injuries
- Medical clearance forms for passengers who were hospitalised recently
💬 If your airline asks for documentation, an online consultation with a licensed doctor can provide a professional assessment and a valid medical certificate confirming whether you're fit to travel.
🔹 Step 3: Rest and Hydrate Before Travelling
If you're only mildly unwell, good preparation can make a big difference:
- Rest well and avoid physical exertion before your flight
- Drink plenty of fluids to prevent dehydration
- Eat light meals and avoid alcohol or caffeine
- Use saline sprays or lozenges to relieve nasal or throat discomfort
These small steps can help you recover faster and make your flight more comfortable.
🔹 Step 4: Know When Not to Fly
You should avoid flying if you have:
- Fever higher than 38.5 °C (101.3 °F)
- Active vomiting or diarrhoea
- Ear infection with strong pain or pressure
- Respiratory infection that makes breathing difficult
- A recent contagious illness that could affect others
In these cases, most airlines will allow you to reschedule your flight with a medical note.
🔹 Step 5: Consult a Doctor Online
If you're unsure whether you're fit to fly, an online consultation can save you time and uncertainty. At Vesiacare, Spanish-licensed doctors can:
- Assess your symptoms
- Advise you on whether it's safe to travel
- Provide a fit-to-fly medical certificate if you meet the criteria
This service is especially useful for travellers abroad who need quick, professional confirmation before their flight.
🔹 Conclusion
Getting sick before travelling can happen to anyone — but with the right steps, you can make the best decision for your health and your trip.
👉 If you're unwell before your flight, speak to a doctor online through Vesiacare for quick, professional advice and, if appropriate, official medical clearance to travel.
Stay safe, rest well, and travel with confidence.
❓ Frequently Asked Questions
Can I fly with a cold or mild fever?
You can usually travel with mild cold symptoms, but avoid flying if you have a high fever or feel very weak.
Do airlines accept online medical certificates?
Yes. Most airlines accept digitally signed fit-to-fly certificates from licensed doctors if they include your details, date, and doctor's signature.
Can I get assessed from abroad?
Absolutely. You can connect with a Vesiacare doctor from anywhere in the world and receive documentation by email within minutes.

