Southwest® flights from Knoxville to Washington, D.C. (Reagan National) from $84
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Low fares from Knoxville to Washington, D.C. (Reagan National)
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Knoxville (TYS)to
Washington, D.C. (Reagan National) (DCA)
Depart: 09/12/2026
One-way
Basic
From
$84
Low fares from Knoxville to Washington, D.C. (Reagan National)
$
Knoxville (TYS)to
Washington, D.C. (Reagan National) (DCA)
Depart: 09/12/2026
One-way
Basic
From
$84
Seen: 18 hrs ago
Knoxville (TYS)to
Washington, D.C. (Reagan National) (DCA)
Depart: 09/04/2026
One-way
Basic
From
$104
Seen: 8 hrs ago
Knoxville (TYS)to
Washington, D.C. (Reagan National) (DCA)
Depart: 09/12/2026
One-way
Choice
From
$118
Seen: 18 hrs ago
Knoxville (TYS)to
Washington, D.C. (Reagan National) (DCA)
Depart: 11/19/2026
One-way
Basic
From
$120
Seen: 23 hrs ago
Knoxville (TYS)to
Washington, D.C. (Reagan National) (DCA)
Depart: 10/03/2026
One-way
Basic
From
$120
Seen: 15 hrs ago
Knoxville (TYS)to
Washington, D.C. (Reagan National) (DCA)
Depart: 09/08/2026
One-way
Basic
From
$132
Seen: 17 hrs ago
Explore flights from Knoxville to Washington, D.C. (Reagan National)
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Flight Details
Departing from:
Mc Ghee Tyson Airport
Arriving at:
Ronald Reagan National Airport
Distance:
437 miles
Route Information
45† Weekly flights
† Weekly flights based on DOT published scheduled average flights Monday through Sunday between 9/1/2025 and 9/30/2025. Note: route may not operate every day of the week.
‡ Nonstop flights based on DOT published scheduled average flights Monday through Sunday between 9/1/2025 and 9/30/2025.
Questions we hear the most
There are 45 weekly flights from Knoxville to Washington, D.C. (Reagan National) on Southwest Airlines.
To find the lowest fares by day and time to fly Knoxville to Washington, D.C. (Reagan National) with Southwest, check out our Low Fare Calendar.
You can rent a car at Ronald Reagan National Airport book yours with your flight.
Yes! Flights from Knoxville to Washington, D.C. (Reagan National)—or from here or there to anywhere—can be changed with no change fees. Fare difference may apply.
Check the status of your upcoming Southwest flight.
Check out the Southwest Airlines® Help Center for answers about everything Southwest.
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