Nonstop flights from Washington to Knoxville

3 airlines fly from 3 Washington airports (IAD, DCA and BWI) to Knoxville (TYS), with up to 8 flights a day.

IADTYS

Routes

3 airport pairs

When they leave

Washington time

9:00a10:15pFirst departure 9:00 AM, last 10:15 PM

One morning flight at 9:00 AM, then one afternoon flight at 12:50 PM, then seven in the evening, 5:14 PM to 10:15 PM.

Every flight

Earliest first

9:00 AM→10:45 AMDCA to TYSAmerican AirlinesCRJ 900Daily
9:00 AM→10:37 AMIAD to TYSUnited AirlinesEmbraer ERJMon, Thu, Fri, Sat, Sun
12:50 PM→2:37 PMIAD to TYSUnited AirlinesEmbraer 175Daily
5:14 PM→7:01 PMDCA to TYSAmerican AirlinesCRJ 700Daily
6:10 PM→7:50 PMBWI to TYSSouthwest AirlinesBoeing 737-700Tue, Wed, Sat
6:15 PM→7:55 PMBWI to TYSSouthwest AirlinesBoeing 737-700Mon, Thu, Fri
6:42 PM→8:24 PMIAD to TYSUnited AirlinesEmbraer ERJDaily
7:46 PM→9:34 PMDCA to TYSAmerican AirlinesCRJ 700Mon, Tue, Wed, Thu, Fri, Sun
8:05 PM→9:45 PMBWI to TYSSouthwest AirlinesBoeing 737-700Sun
10:15 PM→11:59 PMIAD to TYSUnited AirlinesEmbraer ERJDaily

Schedules last checked Sep 20, 2026. Times are local.

Flying from Washington to Knoxville

United Airlines flies most often, 3 to 4 times a day on the Embraer ERJ and Embraer 175. American Airlines flies 2 to 3 times a day on the CRJ 700 and CRJ 900. Southwest Airlines flies daily on the Boeing 737-700.

There are 7 or 8 flights every day of the week. The first arrival in Knoxville is at 10:37 AM and the last at 11:59 PM.

IAD to TYS is the busiest airport pair, with 26 flights a week, then DCA to TYS with 20 and BWI to TYS with 7.

Flying back, Knoxville to Washington has 53 nonstop flights a week.

Return flights

Knoxville to WashingtonView

Find the cheapest day to fly from Washington to Knoxville.

Schedules as of Oct 9, 2026.