Cheap Flights from Knoxville to Washington

Cheapest flights from Knoxville to Washington

Flaut.Travel was designed and developed by a team dedicated to making the process of searching, comparing and booking airline tickets as easy and convenient as possible. Our service helps travelers to find and buy the cheapest flights from Knoxville to Washington. We have connected more than 40 airlines and airline ticketing agencies to help you find the most suitable and affordable flight option.

Cheapest one way flight

$197

Southwest Airlines

1 layover

9h 20m

09/30/2026

The cheapest one-way flight from Knoxville to Washington departs on 09/30/2026, is operated by Southwest Airlines and costs $197

Cheapest round trip flight

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There is no information about the cheapest roundtrip flight from Knoxville to Washington

The fastest flight

1h 35m

Fastest flight from Knoxville to Washington takes 1h 35m

Direct flights

Several times a week

There are direct flights on this route 4 days a week: Su, We, Fr, and Sa

Earliest flight

5:45 AM

Latest flight

7:31 PM

Direct flights count

34

Distance

689km

Timezone difference

0h

The distance between Knoxville and Washington is 689km (427 miles). There are 34 direct flights from Knoxville to Washington. Knoxville and Washington are in the same time zone. Flights from Knoxville begin at 5:45 AM. The latest flight from Knoxville departs at 7:31 PM

Remember that on average the ideal time to book flights is 2 months before departure!

Airfare from Knoxville to Washington by month

The cost of a one-way flight from Knoxville to Washington ranges from $32 (October 2026) to $166 (September 2026). On average, the ticket price is about $99–$166.

October 2026

Lowest price

on average:

$32

September 2026

Highest price

on average:

$166

Avg Price

Airlines operating on route

More than 4 airlines operate flights from Knoxville to Washington, including American Airlines, United Airlines, Southwest Airlines, and Allegiant Air. This is a popular route, so passengers can choose tickets based on budget and preferences. Ticket prices start from $197, and our service lets you instantly compare all options. The variety of offers simplifies planning: you can choose budget fares or more comfortable options with baggage included or extra services. We help you find the best deals so your trip is cost-efficient.

starting at $343

starting at $215

starting at $197

starting at $332

Non-stop flights from Knoxville to Washington

A non-stop flight is the most convenient and comfortable way to fly from Knoxville to Washington, despite the fact that sometimes flights with transfers can cost significantly less.

Knoxville — Washington

TYS — WAS

09/27/2026

Departure

Direct flight

AA5109

starting at $1,506

Knoxville — Washington

TYS — WAS

09/30/2026

Departure

Direct flight

UA4848

starting at $282

Knoxville — Baltimore

TYS — BWI

10/03/2026

Departure

Direct flight

WN4215

starting at $419

Knoxville — Washington

TYS — WAS

03/05/2027

Departure

Direct flight

AA5149

starting at $343

Schedule of direct flights from Knoxville to Washington

There are most likely no direct flights on the Knoxville — Washington route

Knoxville airports overview

McGhee Tyson Airport

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TYS

Serving Knoxville, Tennessee and the Great Smoky Mountains region, provides domestic flights to major U.S. hubs with rental cars, parking, and shuttle connections to downtown and nearby parks.

•

Knoxville, Tennessee boasts two convenient airports for travelers seeking smooth departures. First up, McGhee Tyson Airport (TYS) offers quick access to the city center. Serving major airlines like Delta and American Airlines, TYS guarantees a wide range of flight options. With a short taxi, it takes around 20 minutes to reach downtown Knoxville, making it an excellent choice for business travelers and those with tight schedules. However, being the main airport, TYS can experience heavy traffic during peak hours, so plan ahead to avoid longer security lines. For a more relaxed departure experience, consider Knoxville Downtown Island Airport (DKX). While this airport primarily serves general aviation, it provides a charming alternative for private or corporate flights. With its proximity to the heart of Knoxville, reaching the city center takes just 10 minutes, perfect for travelers seeking efficiency and convenience. However, it's important to note that DKX is a smaller airport and may have limited direct flight options compared to TYS. Overall, both Knoxville airports offer their unique advantages. TYS guarantees a wider selection of airlines and destinations, ideal for travelers seeking flexible schedules, while DKX provides a hassle-free alternative for those in search of swift access to downtown Knoxville. Choose wisely based on your specific needs, and embark on your journey seamlessly from the airport that suits you best. Book your next flight to Knoxville now on our air tickets search website!

Washington airports overview

Ronald Reagan National Airport

•

DCA

5km

Convenient for downtown Washington, D.C. and the National Mall, offering primarily domestic and short-haul flights with direct Metro access and quick transfers across the Potomac.

Washington Dulles International Airport

•

IAD

37km

•

Frequently asked questions (FAQ)

Answers to questions about the route that travelers are most interested in.

What is the cheapest price for flights from Knoxville to Washington?

The cheapest flight ticket from Knoxville to Washington according to data for the last 48 hours costs $197

When is the best time to buy air tickets on the route Knoxville — Washington?

Often the best time to buy tickets from Knoxville to Washington is 2 months before departure.

When is the cheapest time of year to fly from Knoxville to Washington?

Based on statistics over the past years, the lowest prices for flights from Knoxville to Washington can be found flying in these months: October, September.

How long does it take to fly from Knoxville to Washington?

The fastest flights from Knoxville to Washington start from 1 hour 35 minutes in the air.

Which airline can fly direct from Knoxville to Washington?

The following airlines operate direct flights on the route Knoxville — Washington: American Airlines, United Airlines, Southwest Airlines

Special offers and sales on air tickets from Knoxville to Washington

We keep tight track on airlines' pre-holidays sales and other special offers occurences all the time to let you save maximum amount of funds while traveling to your family or just going out on vacation.

We couldn't find any special offers for flights from Knoxville to Washington

Alternative routes

Atlanta ➜ Washington•Asheville ➜ Washington•Birmingham ➜ Washington•Nashville ➜ Washington•Chattanooga ➜ Washington•Charlotte ➜ Washington•Charleston ➜ Washington•Winston-Salem ➜ Washington•Knoxville ➜ Baltimore•Knoxville ➜ Charlottesville•Knoxville ➜ Hagerstown•Knoxville ➜ Lancaster•Knoxville ➜ Philadelphia•Knoxville ➜ Richmond

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Cheapest one way flight

$197

Southwest Airlines

1 layover

9h 20m

09/30/2026

The cheapest one-way flight from Knoxville to Washington departs on 09/30/2026, is operated by Southwest Airlines and costs $197

Cheapest round trip flight

—

There is no information about the cheapest roundtrip flight from Knoxville to Washington

The fastest flight