What is the longest flight from IAD?

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.

How are the longest IAD flights ranked?

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.

Are these guaranteed live routes?

The list is built from FlightQ's current schedule capture. Airlines change timetables often, so always confirm dates and availability before booking.

Longest Flights From IAD: Routes & Flight Times

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Farthest nonstop routes

Longest nonstop flights from IAD
#	Route	Distance	Est. time	Airlines	Frequency
1	IAD to CPT Cape Town, South Africa	7,931 mi	~16h 57m	United Airlines	3×/wk
2	IAD to TPE Taipei, Taiwan	7,851 mi	~16h 47m	EVA Air	1/day
3	IAD to ADD Addis Ababa, Ethiopia	7,185 mi	~15h 24m	Ethiopian Airlines	1-2/day
4	IAD to AUH Abu Dhabi, United Arab Emirates	7,075 mi	~15h 11m	Etihad Airways	1-2/day
5	IAD to DXB Dubai, United Arab Emirates	7,056 mi	~15h 8m	Emirates	1/day
6	IAD to ICN Seoul, South Korea	6,942 mi	~14h 54m	Korean Air, Air Premia	1-2/day
7	IAD to DOH Doha, Qatar	6,915 mi	~14h 51m	Qatar Airways	1-2/day
8	IAD to PEK Beijing, China	6,905 mi	~14h 50m	Air China	2×/wk
9	IAD to HND Tokyo, Japan	6,767 mi	~14h 33m	All Nippon Airways, United Airlines	2/day
10	IAD to RUH Riyadh, Saudi Arabia	6,737 mi	~14h 29m	Saudia	1/day
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	3×/wk
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	1-2/day
18	IAD to HNL Honolulu, United States	4,809 mi	~10h 30m	United Airlines	2×/wk
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, ITA Airways	3-4/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	Lufthansa, United Airlines	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, Swiss International Air Lines	2-3/day