Washington to Knoxville flights: who flies IAD-TYS

Washington to Knoxville flight schedule

Scheduled nonstop departures for IAD to TYS starting October 22, 2026, last checked against our schedule feed on October 18, 2026. Airlines retime and cancel flights, so confirm with the airline before you book.

Scheduled nonstop departures from Washington (IAD) to Knoxville (TYS)
Date	Flight	Airline	Departs IAD	Arrives TYS	Duration	Aircraft
Thu, Oct 22	UA 4257	United Airlines	09:00	10:37	1h 37m	ERJ
Thu, Oct 22	G4 3033	Allegiant Air	10:01	11:29	1h 28m	Airbus A320
Thu, Oct 22	UA 4070	United Airlines	12:55	14:42	1h 47m	Embraer E175
Thu, Oct 22	UA 4914	United Airlines	18:37	20:19	1h 42m	ERJ
Thu, Oct 22	UA 4304	United Airlines	22:13	23:59	1h 46m	ERJ
Fri, Oct 23	UA 4070	United Airlines	12:55	14:42	1h 47m	Embraer E175
Fri, Oct 23	UA 4914	United Airlines	18:37	20:19	1h 42m	ERJ
Fri, Oct 23	UA 4304	United Airlines	22:13	23:59	1h 46m	ERJ
Sat, Oct 24	UA 4257	United Airlines	09:00	10:37	1h 37m	ERJ
Sat, Oct 24	UA 4070	United Airlines	12:55	14:42	1h 47m	Embraer E175
Sat, Oct 24	UA 4914	United Airlines	18:37	20:19	1h 42m	ERJ
Sat, Oct 24	UA 4304	United Airlines	22:13	23:59	1h 46m	ERJ
Sun, Oct 25	G4 1409	Allegiant Air	08:16	09:44	1h 28m	Airbus A320
Sun, Oct 25	UA 4070	United Airlines	12:55	14:42	1h 47m	Embraer E175
Sun, Oct 25	UA 4914	United Airlines	18:37	20:19	1h 42m	ERJ
Sun, Oct 25	UA 4304	United Airlines	22:13	23:59	1h 46m	ERJ
Mon, Oct 26	UA 4257	United Airlines	09:00	10:37	1h 37m	ERJ
Mon, Oct 26	UA 4070	United Airlines	12:55	14:42	1h 47m	Embraer E175
Mon, Oct 26	UA 4914	United Airlines	18:37	20:19	1h 42m	ERJ
Mon, Oct 26	UA 4304	United Airlines	22:13	23:59	1h 46m	ERJ
Tue, Oct 27	UA 4257	United Airlines	09:00	10:37	1h 37m	ERJ
Tue, Oct 27	UA 4070	United Airlines	12:55	14:42	1h 47m	Embraer E175
Tue, Oct 27	UA 4914	United Airlines	18:37	20:19	1h 42m	ERJ
Tue, Oct 27	UA 4304	United Airlines	22:13	23:59	1h 46m	ERJ
Wed, Oct 28	UA 4257	United Airlines	09:00	10:37	1h 37m	ERJ
Wed, Oct 28	UA 4070	United Airlines	12:55	14:42	1h 47m	Embraer E175
Wed, Oct 28	UA 4914	United Airlines	18:37	20:19	1h 42m	ERJ
Wed, Oct 28	UA 4304	United Airlines	22:13	23:59	1h 46m	ERJ

Showing all 28 scheduled IAD to TYS departures across 7 days with service, starting October 22, 2026. Later dates are on the interactive map.

Departure and arrival times are local at their own airport, so an arrival can fall on a different local date than the departure; the duration column is the true elapsed flying time. A dash means the airline hasn't filed that value in the schedule data we hold. Aircraft are the equipment the airline filed, named where the code pins down one type and shown as the family or the bare code where it doesn't. Swaps can happen up to departure.

See every IAD to TYS date on the interactive map

Aircraft on the Washington to Knoxville nonstop

In the schedule table on this page, United Airlines flies the Embraer ERJ and the Embraer E175, and Allegiant Air flies the Airbus A320. Each linked aircraft page shows where that airline schedules it. Airlines can swap aircraft up to departure.

The full IAD to TYS nonstop schedule

This page carries the full IAD to TYS nonstop schedule, who operates each departure and how often it runs; the reverse direction is linked below.

See the schedule

Who operates each IAD to TYS nonstop and how often it runs, from 2LNR's schedule data.

Plan on the map

See IAD to TYS on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Washington to Knoxville nonstop

Carriers operating IAD to TYS nonstop in the current schedule.

See IAD to TYS on the interactive map →

Frequently asked questions about IAD to TYS

How long is the flight from Washington (IAD) to Knoxville (TYS)?

Scheduled flight times from Washington (IAD) to Knoxville (TYS) run from 1h 28m to 1h 47m across the departures in the schedule table on this page. The nonstop covers about 420 miles, and airlines adjust scheduled times by season, so confirm with the airline before you book.

Which airlines fly nonstop from IAD to TYS?

United Airlines and Allegiant Air fly IAD to TYS nonstop. 2LNR doesn't show award or upgrade space for any of them on IAD to TYS, so this page carries the schedule rather than a space claim.

How many flights a week are there from IAD to TYS?

About 29 nonstop flights a week run between Washington (IAD) and Knoxville (TYS) in the current schedule, operated by United Airlines and Allegiant Air. Frequency shifts by season, and the schedule table on this page shows what is scheduled next.

What time do flights from IAD to TYS depart?

Scheduled IAD to TYS nonstops in the next 7 days with service leave between 08:16 and 22:13, local time at Washington. The schedule table on this page lists every departure by date, with its arrival time and aircraft.

Which flights operate IAD to TYS nonstop?

In the schedule table on this page, IAD to TYS nonstops fly as UA 4070, UA 4257, UA 4304, and UA 4914 on United Airlines, and G4 1409 and G4 3033 on Allegiant Air. The table lists each departure by date with its times and aircraft.

Does 2LNR show upgrade or award space on IAD to TYS?

Not on this route: 2LNR doesn't show award or upgrade space for any airline flying IAD to TYS. The page carries the full IAD to TYS nonstop schedule and who flies each departure, and the reverse direction is linked below.