Readers of my website know that I am a loyal Alaska Air passenger, so I was excited to see the Alaska Airlines Spring Award Sale today. A big part of my loyalty to AS is not choice but the fact that 51% of all flights in and out of my local airport (SEA) are on Alaska. Delta is gaining on Alaska, but only accounts for 14% of all flights.
Alaska just announced their Spring Award Sale for Mileage Plan members. You can score some great flights for 5,000 miles (+$2.50). For example, you can fly SEA>SFO roundtrip for 10,000 miles (+$5.00).