DCA - TYS

$81 Find Cheap Flights from Reagan Washington National Airport to Knoxville - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Reagan-National to Knoxville departing on 9/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$161
Typical prices: $259-$487
Delta
Thu 9/17Mon 9/21
DCA - TYS • 1 stop
Cheapest non-stop
$185
Typical prices: $238-$379
American Airlines
Sat 8/15Mon 8/17
DCA - TYS • Non-stop
Top airlines
Cheapest • from $161 (round-trip)
Best reviews • 7.1 score
Airline reviews
Airline reviews
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Airline reviews
Airline reviews
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Nonstop flights
You can fly direct with American Airlines. Average duration is 1h 48m
Direct flights
Direct flights
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Direct flights
Direct flights
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Top layover airports
Cheapest • Avg $302 (round-trip)
Shortest trip • 3h 44m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 5 weeks in advance save around 19% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 41% price drop
Most popular
Good to know
Good to know
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Good to know
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Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Reagan-National to Knoxville (DCA-TYS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Reagan-National to Knoxville that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Reagan-National to Knoxville

Thu, Sep 17 - Mon, Sep 21
Delta Logo
6:00 am - 9:29 am
DCA
-
TYS
3h 29m
1 stop
Delta Logo
6:13 pm - 11:43 pm
TYS
-
DCA
5h 30m
1 stop
$161Delta
Sat, Aug 15 - Mon, Aug 17
American Airlines Logo
3:40 pm - 5:30 pm
DCA
-
TYS
1h 50mnonstop
American Airlines Logo
7:31 pm - 9:23 pm
TYS
-
DCA
1h 52mnonstop
$185American Airlines
Sat, Sep 26 - Wed, Sep 30
Southwest Logo
6:05 am - 1:15 pm
DCA
-
TYS
7h 10m
1 stop
Southwest Logo
7:00 am - 12:05 pm
TYS
-
DCA
5h 05m
1 stop
$187Southwest
Wed, Aug 12 - Tue, Aug 18
Southwest Logo
6:10 am - 2:20 pm
DCA
-
TYS
8h 10m
1 stop
Southwest Logo
7:00 am - 12:05 pm
TYS
-
DCA
5h 05m
1 stop
$192Southwest
Mon, Aug 10 - Fri, Aug 14
Southwest Logo
6:55 am - 12:20 pm
DCA
-
TYS
5h 25m
1 stop
Southwest Logo
5:45 pm - 10:30 pm
TYS
-
DCA
4h 45m
1 stop
$195Southwest
Wed, Aug 12 - Tue, Aug 18
Southwest Logo
6:05 am - 12:05 pm
DCA
-
TYS
6h 00m
2 stops
Southwest Logo
7:00 am - 12:05 pm
TYS
-
DCA
5h 05m
1 stop
$198Southwest
Thu, Oct 15 - Sun, Oct 18
Delta Logo
6:00 am - 11:01 am
DCA
-
TYS
5h 01m
1 stop
Delta Logo
1:00 pm - 2:42 pm
TYS
-
DCA
1h 42mnonstop
$199Delta
Mon, Aug 10 - Fri, Aug 14
Southwest Logo
6:55 am - 12:20 pm
DCA
-
TYS
5h 25m
1 stop
Southwest Logo
7:10 am - 4:10 pm
TYS
-
DCA
9h 00m
2 stops
$200Southwest
Wed, Aug 12 - Tue, Aug 18
Southwest Logo
6:05 am - 12:05 pm
DCA
-
TYS
6h 00m
2 stops
Southwest Logo
7:00 am - 6:00 pm
TYS
-
DCA
11h 00m
2 stops
$203Southwest
Thu, Sep 10 - Mon, Sep 14
Southwest Logo
1:30 pm - 6:35 pm
DCA
-
TYS
5h 05m
1 stop
Southwest Logo
5:45 pm - 10:30 pm
TYS
-
DCA
4h 45m
1 stop
$204Southwest
Booking Insights

KAYAK's insights & trends for Reagan-National to Knoxville flights

Get data-powered insights and trends into flights from Reagan-National to Knoxville to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Washington, D.C. Reagan-National Airport to Knoxville?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Washington, D.C. Reagan-National Airport to Knoxville departing in September.

What’s the cheapest day of the week to fly from Reagan Washington National Airport to Knoxville?

The average price of all round-trip flights from Washington, D.C. Reagan-National Airport to Knoxville clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Knoxville on a Saturday, as we generally find the cheapest rates on that day for this route. On the other hand, Friday is the most expensive day to fly from Reagan Washington National Airport to Knoxville. For your return ticket, we recommend flying on a Saturday and avoiding Sundays for the best deals.

What is the cheapest month to fly from Washington, D.C. Reagan-National Airport to Knoxville?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. Reagan-National Airport to Knoxville, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Washington, D.C. Reagan-National Airport to Knoxville is January, where tickets cost $201 (return) on average. On the other hand, the most expensive months are December and October, where the average cost of round-trip tickets is $483 and $439 respectively.

Can I save money by flying with a layover from Washington, D.C. Reagan-National Airport to Knoxville?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $351, prices are generally cheapest when you fly direct.

How far in advance should I book a flight from Washington, D.C. Reagan-National Airport to Knoxville?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Washington, D.C. Reagan-National Airport to Knoxville, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Washington, D.C. Reagan-National Airport to Knoxville, you should book around 5 weeks before departure, which saves you about 19% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 20 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$81
Best time to beat the crowds with an average 41% drop in price.
Most popular time to fly and prices are also 5% lower on average.
Flight from Reagan Washington National Airport to Knoxville

When to book flights from Reagan-National to Knoxville

Are your dates flexible? Find out the best times to travel from Reagan-National to Knoxville based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Reagan Washington National Airport to Knoxville flights

  • What is the cheapest flight from Washington, D.C. Reagan-National Airport to Knoxville?

    In the last 5 days, the lowest price for a flight from Washington, D.C. Reagan-National Airport to Knoxville was $81 for a one-way ticket and $161 for a round-trip.

  • Do I need a passport to fly between Reagan Washington National Airport and Knoxville?

    A passport is not required to fly from Reagan Washington National Airport to Knoxville.

  • Which airports will I be using when flying from Reagan Washington National Airport to Knoxville?

    Reagan Washington National Airport airport is called Washington, D.C. Reagan-National and the only airport in Knoxville is Knoxville McGhee Tyson.

  • Which airlines offer Wi-Fi service onboard planes from Reagan Washington National Airport to Knoxville?

    American Airlines, and Delta offer inflight Wi-Fi service on the Reagan Washington National Airport to Knoxville flight route.

  • Which aircraft models fly most regularly from Reagan Washington National Airport to Knoxville?

    The Canadair (Bombardier) Regional Jet 700 is the aircraft model that flies most regularly on the Reagan Washington National Airport to Knoxville flight route.

  • Which airline alliances offer flights from Reagan Washington National Airport to Knoxville?

    oneworld is the only airline alliance operating flights between Reagan Washington National Airport and Knoxville.

  • On which days can I fly direct from Reagan Washington National Airport to Knoxville?

    There are nonstop flights from Reagan Washington National Airport to Knoxville on a daily basis.

  • How does KAYAK find such low prices on flights from Reagan Washington National Airport to Knoxville?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Reagan Washington National Airport to Knoxville.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Reagan Washington National Airport to Knoxville?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Knoxville from Reagan Washington National Airport is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Reagan Washington National Airport to Knoxville?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Knoxville with an airline and back to Reagan Washington National Airport with another airline. Booking your flights between Reagan Washington National Airport and TYS can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Reagan Washington National Airport to Knoxville?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Knoxville from Reagan Washington National Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Washington, D.C. Reagan-National Airport to Knoxville

  • Looking for a cheap flight? 25% of our users found flights on this route for $243 or less one-way and $263 or less round-trip.

Prefer to fly direct from Reagan Washington National Airport to Knoxville?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Washington, D.C. Reagan-National to Knoxville McGhee Tyson.
Find which airlines fly direct from Washington, D.C. Reagan-National Airport to Knoxville McGhee Tyson Airport, which days they fly and book direct flights.

Direct departures

Washington, D.C. Reagan-National to Knoxville McGhee Tyson

Monday

American Airlines

American Airlines

Tuesday

American Airlines

American Airlines

Wednesday

American Airlines

American Airlines

Thursday

American Airlines

American Airlines

Friday

American Airlines

American Airlines

Saturday

American Airlines

American Airlines

Sunday

American Airlines

American Airlines

See more direct flights

Direct returns

Knoxville McGhee Tyson to Washington, D.C. Reagan-National

Monday

American Airlines

American Airlines

Tuesday

American Airlines

American Airlines

Wednesday

American Airlines

American Airlines

Thursday

American Airlines

American Airlines

Friday

American Airlines

American Airlines

Saturday

American Airlines

American Airlines

Sunday

American Airlines

American Airlines

See more direct flights

Reviews of the top airline flying from Reagan-National to Knoxville

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Knoxville. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Reagan-National to Knoxville? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.1
American AirlinesOverall score based on 11812 reviews
7.5Boarding
6.8Entertainment
7.2Comfort
7.9Crew
6.4Food
Airline reviews

The seats were extremely cramped, with very little legroom or personal space. There was no room left in the overhead bins for a backpack, and the space under the seat in front was so limited that I could barely fit my bag underneath. Overall, the seating arrangement felt very uncomfortable and overcrowded.

2.0 MediocreKrishna, Jun 2026
DCA - ORD
Read more American Airlines reviews

The seats were extremely cramped, with very little legroom or personal space. There was no room left in the overhead bins for a backpack, and the space under the seat in front was so limited that I could barely fit my bag underneath. Overall, the seating arrangement felt very uncomfortable and overcrowded.

Overall a good experience, however Wifi was not working on the flight.

THe flight was an hour late. You got us on the plan and we sat on the ground for 45 minutes with no information from the pilot whatsoever. Worst flight this year.

Delays experienced in boarding/take off due to incoming plane delayed. However, the boarding time/depart time in the app was significantly delayed in providing these updates. Usually not updated until an hour after we should have already boarded. Poorly managed.

Going non stop to lax like I paid for. Not stopping in MCI for gas. Too long of delays

Incoming flight was delayed, delaying boarding. It then took 30 mins to take off. Took 20 mins to get to a gate because they changed the gate last minute, crew weren’t ready so there was no one staffed to work the jet bridge. Boarding was so disorganized as is usual with American because everyone just stands around the gate regardless of boarding group.

delayed due to weather. Could not communicate with family since the wifi was broken

Plane was delayed for 6 hours, at first by weather, which is understandable, but was further delayed with NO given reason for 2 1/2 hours more. We had no clue when we were going to depart actually until they opened the ramp. VERY POOR to ZERO COMMUNICATION!!!

At least it was a short flight. Greyhound with wings.

Our flight got changed and/or delayed 8 times before we boarded.

Everything you need to know for your flight from Reagan-National to Knoxville

Information on your arrival and departure airports