[anxrn]

They appear to have said [1] they'll supply (finance + deliver) aircraft (which presumably the Ukrainians have the expertise to operate, per [2]). They have not said they'll send in an air force (operated by non-Ukrainians), which as you point out, they don't yet have.

[1] https://www.reuters.com/world/europe/eu-close-airspace-russi...

[2] https://www.barrons.com/news/eu-countries-to-send-fighter-je...

[petre]

There are remaining MiG operators in Central and Eastern Europe. These planes have been converted to use NATO armament and they're being phased out anyway. Ukrainian pilots are already accustomed to using them. The EU could use resilience funds to buy F16, F35 or Saab Gripens for the former MiG operators. Some of these are already F16 or Saab Gripen operators.

[yonaguska]

Ukraine has no access to the air at this point anyways. I don't see this as plausible. No airports are secured, and Russia dominates the airspace right now. Even if NATO sends planes, how will they be transported there? And how will they establish a base of operations?