Keflavík is obviously the only major international airport in Iceland though.
A while back I remember hearing a proposal about expanding the airport in Egilsstaðir to be capable of replacing Keflavík if (when?) it is disrupted by lava flow. I think it proved too expensive for much action to be taken though. It would be interesting logistically to see what would happen if Keflavík was knocked out of service.
That's not strictly the case. For example, Akureyri has some international flights: https://en.wikipedia.org/wiki/Akureyri_Airport
Keflavík is obviously the only major international airport in Iceland though.
A while back I remember hearing a proposal about expanding the airport in Egilsstaðir to be capable of replacing Keflavík if (when?) it is disrupted by lava flow. I think it proved too expensive for much action to be taken though. It would be interesting logistically to see what would happen if Keflavík was knocked out of service.