Originally Posted by
AngelMayCry
It's Finair. I guess I need to pay anyway... cannot bet on a 10-hour flight...

You do not need to pay unless you want a specific seat selection.
Not paying will *not* mean they will deny you travel/boarding. You have a ticket.
Similar question here BAEC flying AY of a few days ago -->
https://www.flyertalk.com/forum/brit...ow-status.html
AA thread-->
Basic Economy Fare as of 2017 (also AY, BA, IB), incl. elite benefits (Master thread)
AY thread-->
Light fares to North America