**UA ABE-IAD DEC 0>1.0[0] JAN 0>2[0] FEB 0>2[0] MAR 0>1.9[0] APR 0>2[0] MAY 0>2[0] JUN 0>2[0]
UA ACA-IAH DEC 0.5>0.7[0.3] JAN 1.0>0.6[0.5] FEB 1.1>0.6[1.1] MAR 0.9>0.5[1.0]
UA ACC-IAD MAY 0>0.3[0] JUN 0>0.4[0]
UA ANU-EWR DEC 0.5>0.1[0.2] JAN 0.5>0.2[0.5] FEB 0.4>0.1[0.5] MAR 0.4>0.2[0.4]
UA AUA-IAD DEC 0.3>0.6[0.2] JAN 0.3>1.0[0.2] FEB 0.3>1.0[0.2] MAR 0.3>0.9[0.2]
UA CUN-DEN JAN 2>3[2] FEB 2>3[2]
UA CUN-IAD JAN 1.5>2[2.0] FEB 1.1>2[1.6] MAR 2>3[1.1]
UA CUN-LAX JAN 1.1>2[2] FEB 1.1>2[1.2]
UA CUN-ORD JAN 3>2[2] FEB 3>2[3]
UA CUN-SFO JAN 1.2>2[3] FEB 1.1>2[1.4] MAR 1.9>3[1.0]
UA CZM-IAH JAN 0.4>0.6[0.6] FEB 0.3>0.6[0.4]
UA DEN-PVR JAN 1.2>1.6[1.1] FEB 1.1>1.6[1.2] MAR 1.3>1.8[1.1]
UA DEN-SJD JAN 1.2>1.4[1.1] MAR 1.1>1.7[1.2]
**UA ERI-IAD DEC 0>1.0[0] JAN 0>2[0] FEB 0>2[0] MAR 0>1.8[0] APR 0>2[0] MAY 0>2[0] JUN 0>2[0]
UA EWR-NAS DEC 2>1.5[2.0]
UA EWR-POP JAN 1.0>0.5[0.5] FEB 1.0>0.4[1.1]
UA EWR-PVR MAR 0.4>0.8[0.4]
UA EWR-SAL DEC 1.0>0.7[0.2]
UA EWR-SJD DEC 0.7>1.1[0.3] FEB 0.3>0.6[0.6] MAR 0.4>0.8[0.4]
**UA EYW-IAH DEC 0>0.5[0] JAN 0>1.0[0] FEB 0>1.0[0] MAR 0>0.9[0]
*UA GCM-IAD JAN 0.3>1.0[0.5] FEB 0.1>1.0[0.3] MAR 0.1>0.9[0.2]
UA GCM-ORD MAR 0.4>0.1[0.2]
UA GUA-LAX DEC 1.0>1.2[0] JAN 1.0>1.4[0] FEB 1.0>1.4[0] MAR 1.0>1.4[0]
UA IAD-IND NOV 1.0>1.2[4]
*UA IAD-MBJ DEC 0.2>0.5[0] JAN 0.3>1.0[0.1] FEB 0.3>1.0[0.1] MAR 0.1>0.9[0.2]
UA IAD-MSY NOV 1.4>1.0[3]
*UA IAD-NAS DEC 0.3>0.6[0] JAN 0.4>1.0[0.5] FEB 0.3>1.0[0.3] MAR 0>0.9[0.2]
*UA IAD-PLS DEC 0.2>0.5[0] JAN 0.2>1.0[0.2] FEB 0.1>1.0[0.2] MAR 0.1>0.9[0.2]
**UA IAD-PNS DEC 0>0.5[0] JAN 0>0.2[0] FEB 0>0.3[0] MAR 0>0.8[0]
UA IAD-PUJ JAN 0.5>1.0[1.0] FEB 0.4>1.0[0.3]
UA IAD-RDU NOV 1.0>1.3[4]
UA IAD-SAL DEC 1.0>1.5[0] JAN 1.0>2[0] FEB 1.0>2[0] MAR 1.0>1.9[0]
**UA IAD-SDQ DEC 0>0.5[0] JAN 0>1.0[0] FEB 0>1.0[0] MAR 0>0.9[0]
Is there an entry restriction for USVI?
*UA IAD-STT DEC 0.6>0.1[0.2] JAN 1.0>0.2[0.5] FEB 1.0>0.1[1.1] MAR 1.0>0.4[0.9]
UA IAH-MGA JAN 0.6>1.0[1.0] FEB 0.6>1.0[0.7] MAR 0.6>1.0[0.5]
*UA IAH-NAS JAN 0.3>1.0[1.0] FEB 0.1>1.0[0.6]
UA IAH-PVR DEC 2>3[2] JAN 2>3[2] FEB 2>3[2] MAR 2>3[2.0]
UA IAH-SAL DEC 3>2[3] JAN 3>2[3] FEB 3>2[3] MAR 3>2[2]
UA IAH-SJD JAN 2>3[3] FEB 2>3[3] MAR 2>3[2]
UA IAH-ZIH DEC 0.5>0.8[0.2] JAN 1.0>0.6[0.5] FEB 1.0>0.6[1.1]
UA LAX-PVR DEC 0.6>1.2[0.2] JAN 0.3>1.0[0.5] FEB 0.3>1.0[0.3] MAR 0.2>1.2[0.2]
UA LAX-SAL JAN 1.0>1.6[0] FEB 1.0>1.6[0] MAR 1.0>1.5[0]
**UA LAX-SAP DEC 0>0.2[0] JAN 0>0.5[0] FEB 0>0.4[0] MAR 0>0.4[0]
*UA LAX-SJD DEC 1.0>1.3[1.0] JAN 0.3>1.1[1.0] FEB 0.1>1.0[0.3] MAR 0.4>1.4[0.2]
UA MEX-ORD DEC 1.9>1.5[1.8] JAN 1.8>1.1[1.9] FEB 1.9>1.0[2] MAR 1.9>1.1[1.7]
UA ORD-PLS DEC 0.3>0.1[0.2] JAN 0.6>0.2[0.3] FEB 0.6>0.1[0.6] MAR 0.7>0.2[0.5]
UA ORD-PVR JAN 1.3>2[1.5] FEB 1.3>2[1.3]
UA ORD-SJD DEC 1.1>1.5[1.1] JAN 1.0>2[1.1] FEB 1.0>2[1.1] MAR 1.0>1.9[0.9]
UA PVR-SFO DEC 1.7>1.1[1.4] MAR 1.3>1.0[1.0]

HOW DO I READ IT?
XXX-YYY DEC 4>5[4] JAN 4>5[4]
XXX Departure IATA code, YYY Arrival IATA code, Month, Average Departures/Day over the month for sale as of last week, Average Departures/Day over the month for sale as of this week, in brackets is the number of Average Departures/Day over the month that were scheduled one year earlier. So, it means that the listed airline changed the frequency between the two airports to add from 4 to 5 roundtrips in December and January. It also means that there were 4 roundtrips the prior year in each month. No other months were changed. I average two directions.