6am flight from Lisbon to Munich - how early should we arrive?

I would allow 2 hours (90 minutes pre Covid). Your airline should advise you.

Flying Lisbon to Munich will not require passport control. I’ve flown out of Lisbon to another EU country a couple of times summer/fall. I arrived 90 minutes early and was fine. If you want to be safe, two hours will give you time for coffee and the last pastel da nata!

I hope KathrynJ is right, but we needed about 3 hours just for a domestic flight (Porto to Lisbon) in August. Maybe we just hit a bad day, but the signs are everywhere -- come at least an hour earlier than you used to. I guess your airline, though, is more reliable than we are.

Great - thank you, both!

I hope KathrynJ is right, but we needed about 3 hours just for a
domestic flight (Porto to Lisbon) in August.

You know that you could have taken the train from Porto to Lisbon in less than 3 hours?

Not Lisbon, but we had a 6am flight from Porto last month and got there about 2 hours before. The baggage claim line took forever as they needed to check people's COVID passes/tests/etc. and we made it to our gate just before boarding began.

Thanks @mimieprice - I appreciate the warning! It sounds like 2 1/2 hours will be good (I try to avoid that last minute scramble for the gate).

Any updates on necessary time to arrive LIS airport prior to departure to US? I have seen 4 hrs or 2 and 1/2 hrs …
Line for arrivals last week from USA was 3 hrs

We just flew out yesterday morning at 10:00. We arrived at 7:00 and barely made it to the gate on time. The passport control line was brutal.