- Must visit
Smithsonian National Museum of Natural History
One of the world’s most visited natural history museums, famous for dinosaur fossils, gemstones, and major family-friendly exhibits on Earth and life sciences.
Flights from Knoxville, TN to Washington, DC depart on average 43 times per day, taking around 3h 28m. Cheap flight tickets for this journey start at $49 (€40) if you book in advance.
There are 5 flights per day. The earliest flight runs at 05:00, the last at 22:45. The fastest flight covers the 428 miles (690 km) distance in 1h 42m. August is the cheapest month to fly.
Distance 428 miles (690 km) |
Average flight duration 3h 28m |
Cheapest ticket price $49 (€40) |
Flights per day 43 |
Direct flights 5 |
Fastest flight 1h 42m |
First flight 5:00 AM |
Last flight 10:45 PM |
Cheapest Month Aug |
Cheapest Day Mon |
High Season Jan - Mar |
Low Season Oct - Dec |
Best time to book 1 day |
Omio recommends booking the bus as it is the most popular option from Knoxville, TN to Washington, DC among Omio's users. If you are prioritising price take the bus with prices starting from $76. For those with little time consider booking a flight which can get you there in 3h 28m. The ticket price range depends on the travel mode: a bus costs an average of $76, and a flight costs an average of $49.
Distance: 428 miles (690 km)
| Flight | Most popular Bus | Driving |
|---|---|---|
$196 Average price | $88 Average price Cheapest | $15 Average price (fuel + tolls) |
6h 28m Average total duration Fastest 3h 28m Onboard + 3h 0m Additional time* | 12h 44m Average total duration 12h 14m Onboard + 30m Additional time* | 7h 5m Average total duration (door-to-door) |
Direct Options | Direct Options | Direct Options |
This is compared to other travel options from Knoxville, TN to Washington, DC:
A bus is $108 (€87) less than a flight for this route with tickets for a flight from Knoxville, TN to Washington, DC costing on average $196 (€159).
Other travel options to Washington, DC take longer:
Bus takes on average 12h 14m.
The table below shows live departures for Knoxville, TN to Washington, DC flights for today, Sunday, May 24. You can also manually refresh the results below to see updated flight journeys.
| Provider | Departs | Duration | Arrives | Transfers | Tickets |
|---|---|---|---|---|---|
![]() | 10:53 PM Knoxville, TN | 1h44 | 12:37 AM Washington, DC | 0 transfersDirect | |
This is the last flight of the day. | |||||
Find all the dates and times for this journey
Compare bus and flight prices over the next three weeks. See the best deals at a glance, find the lowest fares, and choose the option that fits your budget.
Discover the best of Washington — top attractions, local food, transport tips, budget advice, and currency essentials. Plan your perfect Washington trip today.
One of the world’s most visited natural history museums, famous for dinosaur fossils, gemstones, and major family-friendly exhibits on Earth and life sciences.
Premier art museum with masterworks from the Middle Ages to modern times, plus a celebrated sculpture garden and strong temporary exhibitions.
Iconic Smithsonian museum covering aviation and space exploration, with historic aircraft and spacecraft that make it a top draw in the city.
Washington’s signature civic landscape lined with museums and monuments, ideal for walking and the city’s top first-time visitor area.
Historic waterfront neighborhood known for cobblestone streets, rowhouses, shopping, and scenic walks along the canal and river.
Scenic walking area around the water framed by major memorials, especially famous during cherry blossom season.
Washington’s signature sausage, usually a coarse smoked pork-and-beef link served on a bun with chili, mustard, and onions. It is one of the city’s most iconic street foods.
A sweet, tangy, slightly spicy sauce closely associated with Washington carryout culture, commonly served with fried chicken and fries. It is a distinctive local condiment.
An oversized late-night pizza slice popular in nightlife areas of Washington, especially Adams Morgan. It is a recognizable local fast-food tradition.
An established, upscale-casual saloon near the White House known for oysters, crab cakes, and other classic Washington and Mid-Atlantic dishes.
Acclaimed Indian restaurant known for refined cooking and a polished dining room. A standout for one of Washington’s most celebrated restaurant experiences.
One of Washington’s best-known restaurants, offering classic French bistro fare in an elegant, energetic space that is popular with locals and visitors.
Prices are high by U.S. standards, especially for hotels and dining in central areas, though casual food is still manageable.
Tip 18-20% at restaurants; 20%+ for great service. Tip bartenders USD 1-2 per drink, taxis about 10-15%, and hotel staff a few dollars.
Official public transport app
Ronald Reagan Washington National Airport -> Metro Center, Washington
Find answers to the most common questions about traveling from Knoxville, TN to Washington, DC by flight. From journey times and ticket prices to direct connections, first and last departures, and even whether the route is scenic, our FAQs cover everything you need to plan your trip. Whether you’re looking for the fastest flight, the cheapest option, or tips for making the most of your visit at Washington, DC, this guide helps you travel smarter and with confidence.

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