For all practical purposes, Internet access on the road is limited to cellular connections and RV park Wi-Fi services.
RV park Wi-Fi is likely to be adequate for most Internet activity, although it will often be very slow. It is very unlikely to be adequate for watching movies on Netflix.
High speed cellular data service is not universally available. Take a look at the coverage map for Verizon, by far the most widely available high speed data network: Verizon Coverage Map
. Make sure you select "4G LTE Data Coverage" on that map.
You can get Verizon data service without signing a two-year contract by buying a data device such as a MiFi like this, or similar: Sample MiFi
You buy data by the month. That would cost you $50/month for 4 GB of data. If you are in a good 4G area, it will provide speeds of 6-20 Mbps, in my experience. That's fast enough for streaming videos.
If you have a Verizon smartphone, you can use it as a Wi-Fi hotspot as well. Check your account on the Verizon web site to see what that would cost. You may need to change your data plan to use your phone as a hotspot with Verizon. If you have the old unlimited data plan, you can use an inexpensive app (PdaNet+
) on many Verizon phones to provide Internet access to your computer. If you want to explore that, the members of the InternetBySmartphone
group on Yahoo will be happy to help (I'm the moderator there).
Of course, you can always rely on the free Wi-Fi at places like Starbucks and MacDonalds.