Cheap flights from Knoxville to Washington, D.C.

Flights overview

Useful information for finding cheap flights from Knoxville to Washington, D.C. and booking your next trip
Cheapest round-trip flights $83
Allegiant Nonstop 2 hr Fri, Jun 5 — Mon, Jun 8
The cheapest round-trip flight from Knoxville to Washington, D.C. is currently $83
Cheapest one-way flight $40
Allegiant Nonstop 2 hr Mon, Jun 1
The cheapest one-way flight from Knoxville to Washington, D.C. is currently $40
Last-minute weekend getaway $127
Allegiant Nonstop 2 hr Thu, May 7 — Sun, May 10
The cheapest last-minute weekend getaway from Knoxville to Washington, D.C. is currently $127
Cheapest business class flights $410
American Nonstop 2 hr Thu, Jun 4 — Mon, Jun 8
The cheapest business class round-trip flight from Knoxville to Washington, D.C. is currently $410
Fastest flight 1 hr 23 min The fastest nonstop flight from Knoxville to Washington, D.C. takes 1 hr 23 min
Nonstop flights Every day There are direct flights on this route every day.

When is the cheapest time to fly?

The cheapest month to fly from Knoxville to Washington, D.C. is typically August. The most expensive month to fly is typically July.
August
Cheapest
Typical prices: $130–225
July
Most expensive
Typical prices: $185–235

Popular airlines from Knoxville to Washington, D.C.

  • American
    Nonstop
    from $191
    Typical price: $185–330
    21 weekly nonstop flights
    TYS - DCA Every day
    1373 weekly connecting flights
    TYS - BWI, DCA, IAD Every day
  • United
    Nonstop
    from $217
    Typical price: $185–375
    21 weekly nonstop flights
    TYS - IAD Every day
    513 weekly connecting flights
    TYS - BWI, DCA, IAD Every day
  • Delta
    from $201
    Typical price: $210–530
    1125 weekly connecting flights
    TYS - BWI, DCA, IAD Every day
  • Southwest
    Nonstop
    from $224
    Typical price: $205–360
    7 weekly nonstop flights
    TYS - BWI Every day
    551 weekly connecting flights
    TYS - BWI, DCA, IAD Every day
  • Allegiant
    Nonstop
    from $80
    Typical price: $80–130
    2 weekly nonstop flights
    TYS - IAD Every Thu, Sun
  • Frontier
    from $230
    Typical price: $225–570
    6 weekly connecting flights
    TYS - DCA Every Fri, Sun

Popular airports near Knoxville

  • McGhee Tyson Airport (TYS)
    Knoxville United States 21 min 11 mi
  • Nashville International Airport (BNA)
    Nashville United States 2 hr 38 min 154 mi
  • Hartsfield-Jackson Atlanta International Airport (ATL)
    Atlanta United States 3 hr 23 min 163 mi
  • Chattanooga Metropolitan Airport (CHA)
    Chattanooga United States 1 hr 39 min 96 mi

Popular airports near Washington, D.C.

  • Ronald Reagan Washington National Airport (DCA)
    Washington United States 19 min 4 mi
  • Dulles International Airport (IAD)
    Washington United States 54 min 22 mi
  • Baltimore/Washington International Thurgood Marshall Airport (BWI) (BWI)
    Baltimore United States 47 min 27 mi
  • Philadelphia International Airport (PHL)
    Philadelphia United States 2 hr 18 min 116 mi

Frequently asked questions about flying from Knoxville to Washington, D.C.

The cheapest flights from Knoxville to Washington, D.C. are usually in August. Typical ticket prices in August range from $130 to $225.
The cheapest round-trip flight from Knoxville to Washington, D.C. recently found on Google Flights was with Allegiant from $83. The cheapest one-way flight was with Allegiant from $40.

Some of the cheapest round-trip deals we found with different airlines:
  • The cheapest American flight from Knoxville to Washington, D.C. is $191, flying from Jun 4 to Jun 8.
  • The cheapest United flight from Knoxville to Washington, D.C. is $217, flying from Jun 11 to Jun 14.
  • The cheapest Delta flight from Knoxville to Washington, D.C. is $201, flying from Jun 4 to Jun 8.
  • The cheapest Southwest flight from Knoxville to Washington, D.C. is $224, flying from Jun 4 to Jun 7.
  • The cheapest Allegiant flight from Knoxville to Washington, D.C. is $80, flying from Jun 19 to Jun 22.
  • The cheapest Frontier flight from Knoxville to Washington, D.C. is $230, flying from Jul 17 to Jul 19.
The cheapest round-trip flight from Knoxville to Washington, D.C. starts at $83 from Fri, Jun 5 to Mon, Jun 8. The cheapest one-way flight starts at $40 and departs on Mon, Jun 1.
1 hr 23 min is the shortest flight time from Knoxville to Washington, D.C..
Mid-Mar–Jun is Washington DC's busiest time, with many people timing their visits to coincide with cherry blossom season (late Mar–mid Apr). Washington DC’s conference centers and hotels also bustle while Congress is in session (Sep–Nov and mid-Jan–Jun). Jul–Aug tend to be hot and humid, while snowfall can vary widely in winter. The city’s most popular events are the annual Cherry Blossom Festival in spring, the 4th of July celebration in summer, and the lighting of the National Christmas Tree in winter.
It's easy to use Google Flights to find the cheapest days to fly from Knoxville to Washington, D.C..
Just click the Departure label near the top of the page to open the calendar. Choose a start date and a return date to see how the round-trip fare changes on those specific days.
Adjust the trip type to see one-way fares. The cheapest available flights are highlighted and easy to spot. Once you settle on dates, click the Search button to see flight options and book the deal.

You can also turn on price tracking to get alerts if the price changes for a route or flight.
What counts as the best airline for your flights from Knoxville to Washington, D.C. really depends on your individual needs. You may have a favorite carrier or a loyalty program you like, but price, convenience, and airports served also come into play. Flexibility and booking terms – Can you change flights if you want to stay longer or get a refund if you have to postpone your trip? – are also factors that help determine which airline is best to fly from Knoxville to Washington, D.C..

In terms of nonstop flights, American is the most popular. American offers 21 nonstop flights and 1,373 connecting flights per week. American flies from McGhee Tyson Airport (TYS) to Baltimore/Washington International Thurgood Marshall Airport (BWI) (BWI) , Ronald Reagan Washington National Airport (DCA) , Dulles International Airport (IAD) .

Other popular airlines flying from Knoxville to Washington, D.C. are:
  • United offers 21 nonstop flights and 513 connecting flights per week. United flies from McGhee Tyson Airport (TYS) to Baltimore/Washington International Thurgood Marshall Airport (BWI) (BWI) , Ronald Reagan Washington National Airport (DCA) , Dulles International Airport (IAD) .
  • Delta offers 1,125 connecting flights per week. Delta flies from McGhee Tyson Airport (TYS) to Baltimore/Washington International Thurgood Marshall Airport (BWI) (BWI) , Ronald Reagan Washington National Airport (DCA) , Dulles International Airport (IAD) .
  • Southwest offers 7 nonstop flights and 551 connecting flights per week. Southwest flies from McGhee Tyson Airport (TYS) to Baltimore/Washington International Thurgood Marshall Airport (BWI) (BWI) , Ronald Reagan Washington National Airport (DCA) , Dulles International Airport (IAD) .
  • Allegiant offers 2 nonstop flights per week. Allegiant flies from McGhee Tyson Airport (TYS) to Dulles International Airport (IAD) .
  • Frontier offers 6 connecting flights per week. Frontier flies from McGhee Tyson Airport (TYS) to Ronald Reagan Washington National Airport (DCA) .
The number of connecting flights refers to distinct flights with at least one stop between Knoxville and Washington, D.C..
The cheapest round-trip flight from Knoxville to Washington, D.C. recently found on Google Flights was with Allegiant from $83. The cheapest one-way flight was with Allegiant from $40.

Some of the cheapest round-trip deals we found with different airlines:
  • The cheapest American flight from Knoxville to Washington, D.C. is $191, flying from Jun 4 to Jun 8.
  • The cheapest United flight from Knoxville to Washington, D.C. is $217, flying from Jun 11 to Jun 14.
  • The cheapest Delta flight from Knoxville to Washington, D.C. is $201, flying from Jun 4 to Jun 8.
  • The cheapest Southwest flight from Knoxville to Washington, D.C. is $224, flying from Jun 4 to Jun 7.
  • The cheapest Allegiant flight from Knoxville to Washington, D.C. is $80, flying from Jun 19 to Jun 22.
  • The cheapest Frontier flight from Knoxville to Washington, D.C. is $230, flying from Jul 17 to Jul 19.
Southwest, American, United and Allegiant fly direct from Knoxville to Washington, D.C..
  • There are 21 American direct flights from Knoxville to Washington, D.C. per week. Flights are available every day.
  • There are 21 United direct flights from Knoxville to Washington, D.C. per week. Flights are available every day.
  • There are 7 Southwest direct flights from Knoxville to Washington, D.C. per week. Flights are available every day.
  • There are 2 Allegiant direct flights from Knoxville to Washington, D.C. per week. Flights are available on Thursday and Sunday.
Use the Stops filter while searching for flights, to see only nonstop options in your results.
The cheapest last-minute deal between Knoxville and Washington, D.C. at price $127 is offered by Allegiant from Thu, May 7 to Sun, May 10.
Southwest, American, United and Allegiant fly direct from Knoxville to Washington, D.C..
  • There are 21 American direct flights from Knoxville to Washington, D.C. per week. Flights are available every day.
  • There are 21 United direct flights from Knoxville to Washington, D.C. per week. Flights are available every day.
  • There are 7 Southwest direct flights from Knoxville to Washington, D.C. per week. Flights are available every day.
  • There are 2 Allegiant direct flights from Knoxville to Washington, D.C. per week. Flights are available on Thursday and Sunday.
Use the Stops filter while searching for flights, to see only nonstop options in your results.
There are direct flights from Knoxville to Washington, D.C. on a daily basis.
The cheapest direct (nonstop) round-trip flights between Knoxville and Washington, D.C. start at $83 from Fri, Jun 5 to Mon, Jun 8 with Allegiant.
It's easy to find nonstop flights with Google Flights! Once you've searched for flights from Knoxville to Washington, D.C., just select the nonstop flights only option in the 'Stops’ filter in the search form and view all available direct flights and their prices.
The cheapest business class round-trip flights between Knoxville and Washington, D.C. start at $410 from Thu, Jun 4 to Mon, Jun 8 with American.
The cheapest economy class round-trip flights between Knoxville and Washington, D.C. start at $83 from Fri, Jun 5 to Mon, Jun 8.
To book business class trips from Knoxville to Washington, D.C., look for the default Economy selection at the top, and change it to your desired cabin class such as Premium Economy, Business Class, or First Class. You can then select your departure and arrival dates, consider available options, and book your business travel.

You can also adjust the trip type to view one-way fares.
The best last-minute getaway deal for the next weekend between Knoxville and Washington, D.C. starts at $127 from Thu, May 7 to Sun, May 10 with Allegiant.
The cheapest last-minute deal between Knoxville and Washington, D.C. at price $127 is offered by Allegiant from Thu, May 7 to Sun, May 10.
To find last-minute flight deals from Knoxville to Washington, D.C., start by entering the city names, select the desired departure and return dates, and hit the Search button to view flight options.

You can check for last-minute flights for the same day or adjust the trip type to see one-way fares.

Search more flights

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