Washington Dulles International Airport in Washington, United States has 169 nonstop destinations in the current FlightQ schedule set. This page ranks the farthest routes by airport-to-airport distance and adds airlines, frequency, and estimated flight time.
The longest listed nonstop flight from IAD is to Cape Town (CPT), about 7,931 miles with an estimated block time of 16h 57m.
| # | Route | Distance | Est. time | Airlines | Frequency |
|---|---|---|---|---|---|
| 1 | IAD to CPT Cape Town, South Africa | 7,931 mi | 16h 57m | United Airlines | 4×/wk |
| 2 | IAD to ADD Addis Ababa, Ethiopia | 7,185 mi | 15h 24m | Ethiopian Airlines | 1/day |
| 3 | IAD to AUH Abu Dhabi, United Arab Emirates | 7,075 mi | 15h 11m | Etihad Airways | 1-2/day |
| 4 | IAD to DXB Dubai, United Arab Emirates | 7,056 mi | 15h 8m | Emirates | 1-2/day |
| 5 | IAD to ICN Seoul, South Korea | 6,942 mi | 14h 54m | Korean Air, APZ, and Perimeter Aviation | 2-3/day |
| 6 | IAD to DOH Doha, Qatar | 6,915 mi | 14h 51m | Qatar Airways | 1-2/day |
| 7 | IAD to PEK Beijing, China | 6,905 mi | 14h 50m | Air China | 2×/wk |
| 8 | IAD to HND Tokyo, Japan | 6,767 mi | 14h 33m | United Airlines and All Nippon Airways | 2-3/day |
| 9 | IAD to RUH Riyadh, Saudi Arabia | 6,737 mi | 14h 29m | Saudia | 2×/wk |
| 10 | IAD to JED Jeddah, Saudi Arabia | 6,581 mi | 14h 10m | Saudia | 3×/wk |
| 11 | IAD to AMM Amman, Jordan | 5,952 mi | 12h 52m | Royal Jordanian | 2×/wk |
| 12 | IAD to CAI Cairo, Egypt | 5,830 mi | 12h 37m | EgyptAir | 3×/wk |
| 13 | IAD to LOS Lagos, Nigeria | 5,438 mi | 11h 48m | United Airlines | 1/day |
| 14 | IAD to LFW Lome, Togo | 5,345 mi | 11h 37m | Ethiopian Airlines | 3×/wk |
| 15 | IAD to ACC Accra, Ghana | 5,293 mi | 11h 30m | United Airlines | 1/day |
| 16 | IAD to IST Istanbul, Türkiye | 5,212 mi | 11h 20m | Turkish Airlines | 2-3/day |
| 17 | IAD to ATH Athens, Greece | 5,156 mi | 11h 13m | United Airlines | 1/day |
| 18 | IAD to HNL Honolulu, United States | 4,809 mi | 10h 30m | United Airlines | weekly |
| 19 | IAD to GRU Sao Paulo, Brazil | 4,753 mi | 10h 23m | United Airlines | 1/day |
| 20 | IAD to FCO Rome, Italy | 4,494 mi | 9h 51m | United Airlines and ITA | 2-3/day |
| 21 | IAD to VIE Vienna, Austria | 4,452 mi | 9h 46m | Austrian Airlines | 1/day |
| 22 | IAD to VCE Venice, Italy | 4,370 mi | 9h 36m | United Airlines | 1-2/day |
| 23 | IAD to MUC Munich, Germany | 4,252 mi | 9h 21m | United Airlines and Lufthansa | 1-2/day |
| 24 | IAD to NCE Nice, France | 4,209 mi | 9h 16m | United Airlines | 1/day |
| 25 | IAD to ZRH Zurich, Switzerland | 4,147 mi | 9h 8m | United Airlines and Swiss International | 2-3/day |
Distance is great-circle mileage. Estimated time uses a standard block-time model until a route has enough tracked duration data on its route guide.
The longest nonstop route in FlightQ's current IAD schedule set is IAD to CPT, about 7,931 miles with an estimated block time of 16h 57m.
Routes are ranked by great-circle distance between the origin and destination airports. Flight times are estimates unless a route page has tracked duration data.
The list is built from FlightQ's current schedule capture. Airlines change timetables often, so always confirm dates and availability before booking.