After spending several hours at the Smithsonian's aviation museum next to Dulles, I went spotting. Unfortuantely the Smithsonian's observation tower was useless. The wrong runways where in use. Therefor I went to the top floor of the short term parking garage. Here the views on landing planes are quite good in the afternoon, if a bit distant. Making photos of taxiing planes is quite frustrating due to the large number of lampposts, parked planes and trees blocking the view.
| Registration | Airline | Type | C/N |
| C-GKEM | Air Canada - Jazz | CRJ-200 | 7277 |
| D-ABVH | Lufthansa | B747 | 25045/845 |
| F-GSPM | Air France | B777 | 30456/307 |
| HK-4553-X | Avianca | A319 | 3467 |
| N101L | biz jet - Landow 101 | Gulfstream | 156 |
| N153GJ | United Express - Go Jet | CRJ-700 | 10219 |
| N156GJ | United Express - Go Jet | CRJ-700 | 10227 |
| N166GJ | United Express - Go Jet | CRJ-702 | 10266 |
| N167GJ | United Express - Go Jet | CRJ-702 | 10269 |
| N17156 | United Express - Mesa Airlines | CRJ-200 | 7156 |
| N202VZ | biz jet - Verizon Coroporate Services Group | Gulfstream | 4158 |
| N207R | biz jet - Raytheon | Hawker | 259045 |
| N208NR | private - J A Aero inc | C.208 | 208B1126 |
| N212VZ | biz jet - Verizon Coroporate Services Group | Gulfstream | 1351 |
| N214UA | United Airlines | B777 | 30220/296 |
| N215WN | Southwest Airlines | B737 | 32487/1723 |
| N224UA | United Airlines | B777 | 30225/375 |
| N271SK | United Express - Chautauqua Airlines | ERJ-145 | 145305 |
| N292SK | United Express - Chautauqua Airlines | ERJ-145 | 145488 |
| N294SK | United Express - Chautauqua Airlines | ERJ-145 | 145497 |
| N311CE | United Express - Colgan Air | S340 | 214 |
| N341CJ | United Express - Colgan Air | S340 | 341 |
| N364PH | Continental Connection - Commutair | DHC-8 | 524 |
| N376SK | American Connection - Chautauqua Airlines | ERJ-145 | 145578 |
| N389SW | Southwest Airlines | B737 | 26592/2629 |
| N402LM | biz jet - Lockheed Martin corp. | Gulfstream | 082 |
| N409CS | biz jet | C.525 | 525-0050 |
| N420UA | United Airlines | A320 | 489 |
| N425UA | United Airlines | A320 | 508 |
| N45FG | biz jet - Fremont Investors | Learjet | 010 |
| N465A | American Airlines | MD-82 | 49595/1509 |
| N468UA | United Airlines | A320 | 1363 |
| N472UA | United Airlines | A320 | 1435 |
| N495UA | United Airlines | A320 | 1842 |
| N503MJ | United Express - Mesa Airlines | CRJ-702 | 10058 |
| N504MJ | United Express - Mesa Airlines | CRJ-702 | 10066 |
| N504UA | United Airlines | B757 | 24625/251 |
| N506QS | biz jet - Aetos Holding | Gulfstream | 623 |
| N513MJ | United Express - Mesa Airlines | CRJ-702 | 10111 |
| N514MJ | United Express - Mesa Airlines | CRJ-702 | 10116 |
| N517JB | JetBlue | A320 | 1327 |
| N518LR | United Express - Mesa Airlines | CRJ-702 | 10259 |
| N519LR | United Express - Mesa Airlines | CRJ-702 | 10260 |
| N568QS | biz jet - Netjets Sales | C.560 | 560-5829 |
| N570ML | United Express - Mesa Airlines | CRJ-200 | 7206 |
| N571JB | JetBlue | A320 | 2125 |
| N581UA | United Airlines | B757 | 26701/543 |
| N586UA | United Airlines | B757 | 26710/567 |
| N592ML | United Express - Mesa Airlines | CRJ-200 | 7410 |
| N598UA | United Airlines | B757 | 28751/844 |
| N606JB | JetBlue | A320 | 2384 |
| N620BA | biz jet - Bank of America | Falcon | 220 |
| N625WA | biz jet - World Acceptance Corp | C.560 | 560-0027 |
| N627JB | JetBlue | A320 | 2577 |
| N630VA | Virgin America | A320 | 3101 |
| N632VA | Virgin America | A320 | 3155 |
| N637RW | United Express - Shuttle America | EMB-170 | 170-00051 |
| N641UA | United Airlines | B767 | 25091/360 |
| N643RW | United Express - Shuttle America | EMB-170 | 170-00060 |
| N648UA | United Airlines | B767 | 25285/443 |
| N651RW | United Express - Shuttle America | EMB-170 | 170-00072 |
| N655QS | biz jet - Marquis Jet Holdings | C.560 | 560-5655 |
| N655RW | United Express - Shuttle America | EMB-170 | 170-00105 |
| N659UA | United Airlines | B767 | 27114/485 |
| N661UA | United Airlines | B767 | 27158/507 |
| N720PS | US Airways Express - PSA Airlines | CRJ-701 | 10178 |
| N734DB | biz jet - DHB Consulting Group | C.560 | 560-0143 |
| N7534A | American Airlines | MD-82 | 49988/1768 |
| N75991 | United Express - Mesa Airlines | CRJ-200 | 7422 |
| N772UA | United Airlines | B777 | 26930/5 |
| N773UA | United Airlines | B777 | 26929/4 |
| N774UA | United Airlines | B777 | 26936/2 |
| N776UA | United Airlines | B777 | 26937/27 |
| N778UA | United Airlines | B777 | 26940/34 |
| N780UA | United Airlines | B777 | 26944/36 |
| N784UA | United Airlines | B777 | 26951/69 |
| N797M | biz jet - G200 leasing inc | Gulfstream | 179 |
| N803HK | Trans States Airlines | ERJ-145 | 145077 |
| N806UA | United Airlines | A319 | 788 |
| N810HK | United Express - Trans States Airlines | ERJ-145 | 145231 |
| N811HK | United Express - Trans States Airlines | ERJ-145 | 145256 |
| N825MJ | Delta Connection - Mesa Airlines | ERJ-145 | 145179 |
| N827UA | United Airlines | A319 | 1022 |
| N831UA | United Airlines | A319 | 1291 |
| N832HK | United Express - Trans States Airlines | ERJ-145 | 145771 |
| N834HK | United Express - Trans States Airlines | ERJ-145 | 145269 |
| N838WC | biz jet - Shamrock Capital Corporation | Hawker | 258338 |
| N841HK | United Express - Trans States Airlines | ERJ-145 | 145382 |
| N842HK | United Express - Trans States Airlines | ERJ-145 | 14500830 |
| N843HK | United Express - Trans States Airlines | ERJ-145 | 14500822 |
| N845G | biz jet - General Dynamics Corp | Gulfstream | 4053 |
| N846HK | United Express - Trans States Airlines | ERJ-145 | 14500855 |
| N846UA | United Airlines | A319 | 1600 |
| N862RW | United Express - Shuttle America | EMB-170 | 170-00100 |
| N902FJ | US Airways Express - Mesa Airlines | CRJ-900 | 15002 |
| N915RB | biz jet - FHC Flight Services | C.750 | 750-0042 |
| N929SR | biz jet - T & M Air | Learjet | 144 |
| N94AN | biz jet - Gulfstream Aerospace | Gulfstream | 1307 |
| N968DL | Delta Airlines | MD-88 | 53161/1808 |
| N990QS | biz jet - Netjets Sales | C.750 | 750-0190 |
| N991DL | Delta Airlines | MD-88 | 53343/1941 |
| OE-LAY | Austrian Airlines | B767 | 29867/731 |
| PH-AOF | KLM | A330 | 801 |
| RA-96018 | Rossiya | IL-96 | 74393202018 |
| ZS-SNE | South African Airlines | A340 | 534 |