Tooth pain after a flight in or out of Phoenix

Airplane pressure changes can trigger pain in teeth with existing problems. Learn why this happens and when to see a dentist.

Medically reviewed by Dr. Jose, DDS — September 24, 2026

Why flying can trigger tooth pain

Airplane cabins are pressurized, but the air pressure inside still changes as you climb and descend. When pressure drops during takeoff or increases during landing, gas bubbles inside a tooth—or in the sinus cavity above your teeth—can expand or contract. If that tooth already has a cavity, a deep crack, or a failing filling, the pressure shift can push on the nerve and cause sharp or throbbing pain.

This happens most often during descent, when cabin pressure rises again. You might feel discomfort in one tooth or across an upper molar area. The pain can fade quickly once you land, or it can linger for hours.

When pressure pain signals a real problem

Not every passenger gets flight tooth pain, and not every tooth pain is pressure-related. If you experience tooth pain during or shortly after a flight, it usually means that tooth has an issue that needs attention.

See a dentist soon if:

• Pain lasts more than a few hours after landing
• The same tooth hurt on a previous flight
• Pain is severe or keeps you awake
• You notice swelling, discoloration, or sensitivity to hot and cold in that area
• Pain spreads to your ear or jaw

Your dentist can examine the tooth, take an X-ray if needed, and spot decay, cracks, or old fillings that are breaking down. Treating the underlying issue will prevent pain on future flights and protect the tooth from more damage.

Is it really the tooth, or is it sinus pressure?

Upper teeth sit close to your sinuses. During a flight, sinus congestion or pressure changes can mimic tooth pain, and the two can overlap. This is especially true if you have a cold or allergies when you fly.

The difference: sinus pain usually affects multiple upper teeth or feels like pressure across your cheek and forehead. True tooth pain is sharper, localized to one tooth, and may worsen when you chew or tap that tooth. If you’re unsure, your dentist can help sort it out. See our guide on sinus pressure vs. tooth pain for more detail.

What to do if your tooth hurts during a flight

In the air:

• Shift your position to ease pressure on the affected side
• Avoid very hot or cold foods and drinks
• An over-the-counter pain reliever may help — ask your pharmacist or dentist what’s appropriate for you
• Chew gently on the opposite side of your mouth

After you land:

• Contact your dentist and describe when the pain started and how long it lasted
• Avoid chewing on that side until you see your dentist
• If pain is severe or spreads, don’t delay — seek care the same day

Before your next flight

If you flew and had tooth pain, get it checked out before you fly again. Your dentist may recommend a filling, root canal, or extraction depending on what’s causing the problem. Treating it now prevents a painful emergency during a future trip and keeps the tooth strong.

If you have recent dental work (like a filling, root canal, or extraction), ask your dentist whether it’s safe to fly. Some procedures require healing time before air travel. See our guide on flying after dental work for details.

How MediMouth helps

If tooth pain struck you after a flight and you need a dentist in Arizona, MediMouth can help you find a nearby provider. Describe your symptoms when you call or book online, and your dentist will evaluate what’s causing the pain and get you a plan to fix it—and fly comfortably next time.

This guide is educational information from MediMouth. It is not a diagnosis or a treatment plan, and it isn't a substitute for seeing a licensed dentist.