Just a few hours spotting at Reagan/National while waiting for my flight to take me to Detroit. In Detroit I had a little over an hour for my connecting flight to Amsterdam.

My flight to Detroit.
The planes seen in Washington.
| Registration | Airline | Type | C/N |
| 6536 | US Coast Guard | HH-65 | 6186 |
| C-FNAI | Air Canada | EMB-190 | 190-00134 |
| C-GKEU | Air Canada - Jazz | CRJ-200 | 7376 |
| N116HQ | US Airways Express - Republic Airlines | EMB-170 | 170-00183 |
| N123HQ | US Airways Express - Republic Airlines | EMB-170 | 170-00199 |
| N125HQ | US Airways Express - Republic Airlines | EMB-170 | 170-00202 |
| N162HL | Midwest Connect | EMB-190 | 190-00231 |
| N209JQ | Delta Connection - Shuttle America | EMB-170 | 170-00258 |
| N210JQ | Delta Connection - Shuttle America | EMB-170 | 170-00260 |
| N212JQ | Delta Connection - Shuttle America | EMB-170 | 170-00264 |
| N216JQ | Delta Connection - Shuttle America | EMB-170 | 170-00273 |
| N221PS | US Airways Express - PSA Airlines | CRJ-200 | 7889 |
| N259JQ | US Airways Express - Chautauqua Airlines | ERJ-145 | 145763 |
| N29717 | Continental Airlines | B737 | 28936/182 |
| N302NB | Northwest Airlines | A319 | 1062 |
| N322NB | Northwest Airlines | A319 | 1453 |
| N36915 | Continental Express - Expressjet | ERJ-145 | 145421 |
| N385DN | Delta Airlines | B737 | 30348/418 |
| N391CA | Delta Connection - Comair | CRJ-700 | 10108 |
| N417US | US Airways | B737 | 23984/1674 |
| N420AW | US Airways Express - Air Wisconsin | CRJ-200 | 7640 |
| N421ZW | US Airways Express - Air Wisconsin | CRJ-200 | 7346 |
| N426AW | US Airways Express - Air Wisconsin | CRJ-200 | 7669 |
| N433AW | US Airways Express - Air Wisconsin | CRJ-200 | 7289 |
| N442AW | US Airways Express - Air Wisconsin | CRJ-200 | 7778 |
| N450AA | American Airlines | MD-82 | 49476/1439 |
| N456UW | US Airways | B737 | 25020/1992 |
| N457AW | US Airways Express - Air Wisconsin | CRJ-200 | 7854 |
| N462AW | US Airways Express - Air Wisconsin | CRJ-200 | 7875 |
| N476LC | biz jet - L3 Is LLC | C.550 | 550-0091 |
| N496UA | United Airlines | A320 | 1845 |
| N582CA | Delta Connection - Comair | CRJ-900 | 15171 |
| N588SW | Delta Connection - Skywest Airlines | CRJ-100 | 7069 |
| N613NW | Northwest Airlines | DC-9 | 47438/545 |
| N649AW | US Airways | A320 | 803 |
| N713UW | US Airways | A319 | 1040 |
| N717AE | American Eagle | ERJ-135 | 145272 |
| N737MW | American Eagle | ERJ-135 | 145396 |
| N742PS | US Airways | A319 | 1275 |
| N748UW | US Airways | A319 | 1311 |
| N750UW | US Airways | A319 | 1315 |
| N752US | US Airways | A319 | 1319 |
| N763US | US Airways | A319 | 1360 |
| N769US | US Airways | A320 | 1391 |
| N770UW | US Airways | A319 | 1393 |
| N801MA | US Airways Express - Midatlantic Airways | EMB-170 | 170-00012 |
| N802MD | US Airways Express - Midatlantic Airways | EMB-170 | 170-00013 |
| N804AE | American Eagle | ERJ-135 | 145487 |
| N805MD | US Airways Express - Midatlantic Airways | EMB-170 | 170-00018 |
| N806UA | United Airlines | A319 | 788 |
| N809MD | US Airways Express - Republic Airlines | EMB-170 | 170-00022 |
| N817MD | US Airways Express - Midatlantic Airways | EMB-170 | 170-00038 |
| N823AE | American Eagle | ERJ-135 | 145582 |
| N824AE | American Eagle | ERJ-135 | 145589 |
| N827AE | American Eagle | ERJ-135 | 145602 |
| N828MD | US Airways Express - Republic Airlines | EMB-170 | 170-00048 |
| N835AE | American Eagle | ERJ-135 | 145634 |
| N866RW | Republic Airlines | EMB-170 | 170-00138 |
| N872RW | Midwest Connect | EMB-170 | 170-00143 |
| N8891A | Northwest Airlink - Pinnacle Airlines | CRJ-440 | 7891 |
| N901AN | American Airlines | B737 | 29512/271 |
| N905DL | Delta Airlines | MD-88 | 49536/1348 |
| N906AN | American Airlines | B737 | 29508/240 |
| N915RW | Northwest Airlines | DC-9 | 47139/169 |
| N927CA | Delta Connection - Comair | CRJ-100 | 7031 |
| N931DL | Delta Airlines | MD-88 | 49718/1533 |
| N945UW | US Airways | EMB-190 | 190-00062 |
| N954UW | US Airways | EMB-190 | 190-00139 |
| N960CA | Delta Connection - Comair | CRJ-100 | 7117 |
| N963CA | Delta Connection - Comair | CRJ-100 | 7127 |
| N989AT | AirTran Airways | B717 | 55152/5085 |
| N990AT | AirTran Airways | B717 | 55134/5088 |
And the planes seen in Detroit:
| Registration | Airline | Type | C/N |
| N156GJ | United Express - Go Jet | CRJ-700 | 10227 |
| N321US | Delta Airlines | A320 | 262 |
| N326US | Delta Airlines | A320 | 282 |
| N327NW | Delta Airlines | A320 | 297 |
| N328NW | Northwest Airlines | A320 | 298 |
| N338NW | Delta Airlines | A320 | 360 |
| N341NW | Northwest Airlines | A320 | 380 |
| N353NW | Northwest Airlines | A320 | 786 |
| N363NB | Delta Airlines | A319 | 1990 |
| N367NW | Northwest Airlines | A320 | 988 |
| N376NW | Delta Airlines | A320 | 1812 |
| N421XJ | Northwest Airlink - Mesaba | S340 | 421 |
| N433XJ | Northwest Airlink - Mesaba | S340 | 433 |
| N446XJ | Delta Connection - Mesaba | S340 | 446 |
| N450XJ | Delta Connection - Mesaba | S340 | 450 |
| N453XJ | Delta Connection - Mesaba | S340 | 453 |
| N519US | Northwest Airlines | B757 | 23207/108 |
| N526US | Delta Airlines | B757 | 23620/131 |
| N527US | Northwest Airlines | B757 | 23843/137 |
| N551NW | Delta Airlines | B757 | 26498/971 |
| N595NW | Delta Airlines | B757 | 32995/1036 |
| N613NW | Northwest Airlines | DC-9 | 47438/545 |
| N627CZ | Northwest Airlink - Compass Airlines | EMB-170 | 170-00229 |
| N636CZ | Northwest Airlink - Compass Airlines | EMB-170 | 170-00253 |
| N638CZ | Northwest Airlink - Compass Airlines | EMB-170 | 170-00259 |
| N669US | Northwest Airlines | B747 | 24224/803 |
| N670MC | Delta Airlines | DC-9 | 47659/807 |
| N676NW | Delta Airlines | B747 | 33002/1303 |
| N720SW | Delta Connection - Comair | CRJ-100 | 7297 |
| N751NW | Northwest Airlines | DC-9 | 47115/261 |
| N760NW | Northwest Airlines | DC-9 | 47288/369 |
| N761NC | Delta Airlines | DC-9 | 47709/814 |
| N762NW | Northwest Airlines | DC-9 | 47395/555 |
| N767NC | Delta Airlines | DC-9 | 47724/853 |
| N768NC | Delta Airlines | DC-9 | 47729/854 |
| N775NC | Delta Airlines | DC-9 | 47785/904 |
| N782SK | United Express - Skywest Airlines | CRJ-700 | 10278 |
| N802NW | Delta Airlines | A330 | 533 |
| N813NW | Northwest Airlines | A330 | 799 |
| N819NW | Delta Airlines | A330 | 858 |
| N820AY | Northwest Airlink - Pinnacle Airlines | CRJ-200 | 8020 |
| N823AY | Northwest Airlink - Pinnacle Airlines | CRJ-200 | 8023 |
| N829MH | Delta Airlines | B767 | 29700/801 |
| N8412F | Northwest Airlink - Pinnacle Airlines | CRJ-200 | 7412 |
| N841AY | Northwest Airlink - Pinnacle Airlines | CRJ-440 | 8041 |
| N8524A | Northwest Airlink - Pinnacle Airlines | CRJ-200 | 7524 |
| N868CA | Delta Connection - Comair | CRJ-100 | 7427 |
| N8698A | Northwest Airlink - Pinnacle Airlines | CRJ-440 | 7698 |
| N8921E | Northwest Airlines | DC-9 | 45836/96 |
| N8932C | Northwest Airlink - Pinnacle Airlines | CRJ-440 | 7932 |
| N8933E | Northwest Airlines | DC-9 | 47142/232 |
| N8986E | Northwest Airlines | DC-9 | 47402/482 |
| N901XJ | Delta Connection - Mesaba | CRJ-900 | 15130 |
| N926CA | Delta Connection - Comair | CRJ-100 | 7027 |
| N930FR | Frontier | A319 | 2241 |
| N9346 | Northwest Airlines | DC-9 | 47376/517 |
| N973DL | Delta Airlines | MD-88 | 53241/1832 |