Uber may have just the offer for you if you use their service frequently in major metropolitan areas. The ride-sharing company is offering flat-fare packages in several U.S. cities, including: Boston, Chicago, Los Angeles, Miami, New York City, San Diego, San Francisco, Seattle and Washington, D.C.

For any flat-fare package you pay a one-time activation fee, but you lock in the flat-fare pricing for a specific number of UberPOOL or UberX rides. The packages include:

• 10 flat-fare rides for $5
• 20 flat-fare rides for $10
• 40 flat-fare rides for $20

You don’t have to pick betweenUberPOOL andUberX when you select the package. The rates are locked in for rides of both types, and you can mix-and-match which you use. In any case, you pay for the package up front.

The flat-fare rates vary by city. Rides start as low as $1.99 for UberPOOL in Boston, Miami, and Los Angeles. In New York City, the flat-fare prices are highest at $2.99 for UberPOOL rides and $5.99 for UberX rides.

Some terms and conditions

You have to buy a package in a specific city, and there is a limit of one package per rider per city. Once the 30 days are up, you are then free to buy another package for the same city.

You have a 30-day window from when you purchase your package to use the flat-fare rides. If you use all the rides in your package, you’re effectively paying only $3.49 per ride per UberPOOL and $6.49 perUberX.

The flat fares are good only within certain zones, so check the map for your city before you ride. In New York, for example, the zone is all 5 boroughs of New York City, airport areas excluded (unfortunately).

The terms and conditions state also that the normal maximum fare for the trip can be up to $30. If the normal fare for the ride rises beyond this, you’ll be charged the remaining amount based on the time and distance.

If your fare happen to be under the flat-fare, no worries. Uber will charge you the lower fare (but maybe still use up one of your flat fare rides?). (UPDATE: this may not be true, based on some practical evidence from readers. The T&Cs are pretty explicit about this being the case, though, so maybe Uber will seek to correct the issue.)

Full T&C details here (at least for NYC).

If you use Uber a lot, these new flat-fare pricing packages offer a great opportunity to score some serious savings!  If you don’t have an Uber account, you can get $20 off your first ride by using my affiliate link.

H/T: SlickDeals and The Penny Hoarder.