FlyerMiler is an incredibly useful tool for travelers trying to find the best mileage deal between two cities. Just input your cities by entering the 3-letter airport codes or the name of the cities, and the tool will show you the results. For example, I just put in LAX (Los Angeles) and LHR (London) and it brought up dozens of options from the likes of Air Berlin, United Airlines and more. It ranks flights from cheapest to most expensive but you can also sort by class of service, airline and more.
Users can’t book awards directly through the site, and it apparently doesn’t list every airline as Delta and Virgin Atlantic were missing (Delta was probably missing since it no longer publishes an award chart). Still, a helpful tool!
FYI: The cheapest way to get from LA to London with miles is by using Alaska Airlines’ Mileage Plan in the offseason on an American Airlines flight—only 20,000 miles (one-way) with no fuel surcharge. In the high season (May 16-Oct 14), Alaska charges 30,000.
H/T to Ramsey Qubein.