Long flights can be very boring and unproductive because you are unable to do anything for a long time, and that is why in-flight Wi-Fi is one of the most demanded service from airlines. Unfortunately though, not all flights have Wi-Fi service. If you want to  know which flights are Wi-Fi capable, check out HasWifi, a free web service that allows you to look up specific flights for WiFi availability. This way, you are assured that you will still be connected even if you are 30,000 feet in the air.

To check if a flight has Wi-Fi, just choose the carrier and enter the flight number. While you do not have to register for an account to use HasWifi, this web service uses the TripIt API and therefore you need to have an account there to make HasWifi work. Users can also verify if that particular flight really has Wi-Fi capabilities by clicking "˜Yes' or "˜No' in the results page. In addition, the service only tracks GoGo-enabled carriers in the United States.

Features:

• Check wifi availability for a particular flight
• See a sample search
• Free to use and no signup is required (requires a TripIt account though)
• Only works for flights in the US and GoGo-enabled carriers
• Read: 4 Free WiFi Sites That Show Hotspot Locations Near You

Check out HasWifi @ www.haswifi.com