Will the airline check the bag all the way to my final destination?

luvlife: Will the airline check the bag all the way to my final destination?
I am planning to book a multi-city trip itinerary on United Airlines. My planned flight itinerary is:

Los Angeles -Washington Dulles
Washington Dulles-London
London- Los Angeles

I planning on listing out each segment individually rather than have United show on the itinerary that there is a connected flight; though all the segments are under the same reservation. My question is: Will the airline tag my baggage all the way to London, or will I have to pickup the bag in Washington Dulles and check it in again?

Thanks for your help.

Answers and Views:

Answer by Div
Bags would be through checked-in only if the the whole itinerary is issued on one ticket and with one carrier only. i.e UA (United Airlines)

Answer by Jonathan Woodruff
Usually bags are checked all the way through to your final destination but I would check with your Airline before you travel.

Answer by AJ
Why would you make 3 different reservations? You do know that you will be paying alot more than if you booked round trip to London.

Bottom line is NO. You do realize that you will be paying extra for checked bags from LA to DC, when if you booked LA to London, you won’t have that fees.

You will have to pick up bags in DC.

Just book the whole trip under 1 itinerary and confirmation number.