Does the Sprint basic plan qualify for roaming and WiFi?
From the FAQ's
I'm on a Sprint plan, am I eligible for In-Flight Connection?
Yes, we are rolling out this expanded benefit to everyone who has these benefits today. If you have free in-flight Wi-Fi today, you'll also be getting this upgrade.
Unlimited in-flight texting, Wi-Fi, and streaming: Sprint MAX
Unlimited texting and 1 hour of in-flight Wi-Fi with streaming where available. Plus 4 full-flight Wi-Fi and streaming sessions a year: Sprint ONE