Can I just fly using my maiden name?

If your ticket name matches your current passport, yes. You do not need to change your flight booking until you receive your new passport under your married name.

What if I booked through a site like Expedia?

You must contact the third-party booking site first. They act as the owner of the ticket and the airline often cannot modify it until the agency authorizes the change.

Does the TSA care about name changes?

The name on your ticket must match your TSA-approved ID. If your ID has not been updated yet, do not change your flight ticket name.

Changing your name on flight bookings after marriage

Call your airline's customer service line immediately upon noticing the discrepancy. Most airlines will allow a free name correction if you provide a copy of your marriage certificate, provided the flight has not yet departed.

Check the airline's policy. Before calling, check the airline's website for their 'name correction policy.' Low-cost carriers often charge high fees for changes, while legacy carriers usually offer one-time corrections for free if you have documentation.
Gather your documents. Have your marriage certificate and your new passport (or ID) ready. You will likely need to email a scanned copy or upload it to their secure portal.
Call the airline directly. Avoid using third-party travel agencies if possible. Call the airline's official support number. Be polite but firm that this is a legal name change due to marriage.
Verify the PNR. After the agent makes the change, ask for a new confirmation email. Check that the PNR (6-digit booking reference) remains the same and that your name is spelled exactly as it appears on your government-issued ID.

Can I just fly using my maiden name?: If your ticket name matches your current passport, yes. You do not need to change your flight booking until you receive your new passport under your married name.
What if I booked through a site like Expedia?: You must contact the third-party booking site first. They act as the owner of the ticket and the airline often cannot modify it until the agency authorizes the change.
Does the TSA care about name changes?: The name on your ticket must match your TSA-approved ID. If your ID has not been updated yet, do not change your flight ticket name.