TYS - WAS

$48 Find Cheap Flights from Knoxville to Washington, D.C.

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Knoxville to Washington, D.C. departing on 2/19. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Washington, D.C.

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Knoxville to Washington, D.C., as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Knoxville to Washington, D.C., as well as popular online travel agencies
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41.299.237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$98
Overall average: $261
Allegiant Air
jue. 2/19dom. 2/22
TYS - IAD • Non-stop
Cheapest one-way
$48
Typical prices: $152-$259
Allegiant Air
jue. 2/19
TYS - IAD • Non-stop
Our travelers' advice
AI-powered summary based on content written by travel experts. AI can make mistakes.
American's Main Cabin Extra offers early boarding.
United's Economy Plus provides extra legroom.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Allegiant Air
Cheapest • from $98 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Top routes
TYS
-
IAD
Cheapest • 53% average savings
TYS
-
IAD
Most popular
Insights
Insights
Insights
Insights
When to book
3 weeks
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 34% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
November
Cheapest • 27% price drop
May
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Washington, D.C.!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Knoxville to Washington, D.C. (TYS-WAS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Knoxville to Washington, D.C. 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 Knoxville to Washington, D.C.

jue., feb. 19 - dom., feb. 22
Allegiant Air Logo
5:56 pm - 7:40 pm
TYS
-
IAD
1h 44mnonstop
Allegiant Air Logo
8:30 pm - 10:10 pm
IAD
-
TYS
1h 40mnonstop
$98Allegiant Air
jue., abr. 9 - dom., abr. 12
Allegiant Air Logo
11:27 am - 1:11 pm
TYS
-
IAD
1h 44mnonstop
Allegiant Air Logo
2:01 pm - 3:41 pm
IAD
-
TYS
1h 40mnonstop
$99Allegiant Air
jue., abr. 9 - dom., abr. 12
Allegiant Air Logo
11:27 am - 1:11 pm
TYS
-
IAD
1h 44mnonstop
Allegiant Air Logo
2:01 pm - 3:41 pm
IAD
-
TYS
1h 40mnonstop
$100Allegiant Air
mié., feb. 18 - mié., feb. 25
American Airlines Logo
5:02 pm - 6:44 pm
TYS
-
DCA
1h 42mnonstop
American Airlines Logo
9:18 am - 11:11 am
DCA
-
TYS
1h 53mnonstop
$163American Airlines
mié., feb. 18 - mié., feb. 25
United Airlines Logo
7:25 pm - 9:11 pm
TYS
-
IAD
1h 46mnonstop
United Airlines Logo
9:00 am - 10:49 am
IAD
-
TYS
1h 49mnonstop
$163United Airlines
vie., feb. 27 - dom., mar. 1
Multiple Airlines Logo
6:51 pm - 9:34 am
TYS
-
IAD
14h 43m
2 stops
Multiple Airlines Logo
8:27 pm - 10:07 pm
IAD
-
TYS
1h 40mnonstop
$167Multiple Airlines
mar., feb. 17 - mar., feb. 24
American Airlines Logo
6:05 am - 7:47 am
TYS
-
DCA
1h 42mnonstop
American Airlines Logo
1:44 pm - 3:32 pm
DCA
-
TYS
1h 48mnonstop
$173American Airlines
mar., feb. 24 - mar., mar. 3
Multiple Airlines Logo
5:14 pm - 7:30 pm
TYS
-
BWI
26h 16m
1 stop
Multiple Airlines Logo
10:06 am - 10:10 am
BWI
-
TYS
24h 04m
1 stop
$178Multiple Airlines
jue., mar. 12 - mar., mar. 17
Delta Logo
5:10 pm - 11:39 pm
TYS
-
DCA
6h 29m
1 stop
Delta Logo
10:10 am - 4:06 pm
DCA
-
TYS
5h 56m
1 stop
$193Delta
vie., may. 15 - mié., may. 20
Delta Logo
7:20 pm - 12:15 am
TYS
-
BWI
4h 55m
1 stop
Delta Logo
2:10 pm - 6:15 pm
BWI
-
TYS
4h 05m
1 stop
$200Delta
Booking Insights

KAYAK's insights & trends for Knoxville to Washington, D.C. flights

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

What is the cheapest Knoxville to Washington, D.C. flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The absolute cheapest return flight from Knoxville to Washington, D.C. costs $80 on the route between Knoxville (TYS) and Washington, D.C. Dulles Intl Airport (IAD). However, over the past month, flights between Knoxville (TYS) and Washington, D.C. Reagan-National Airport (DCA) were, on average, 53% cheaper than other Knoxville-Washington, D.C. routes. The most popular route is between Knoxville (TYS) and Washington, D.C. Dulles Intl Airport (IAD).

What’s the cheapest day of the week to fly from Knoxville to Washington, D.C.?

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

When flying from Knoxville to Washington, D.C., you should consider leaving on a Friday and avoid Saturdays if you are looking for the best rates. For your return to Knoxville, you’ll find the best rates on Fridays and the most expensive ones on Saturdays.

What is the cheapest month to fly from Knoxville to Washington, D.C.?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Knoxville to Washington, D.C., 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 Knoxville to Washington, D.C. is November, where tickets cost $195 (return) on average. On the other hand, the most expensive months are September and January, where the average cost of round-trip tickets is $331 and $309 respectively.

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

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 $223, prices are generally cheapest when you fly direct.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Knoxville to Washington, D.C., 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 Knoxville to Washington, D.C., you should book around 3 weeks before departure, which saves you about 34% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 22 weeks before departure.

Expert advice

Expert advice for your flight from Knoxville to Washington, D.C.

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Harriet Baskas

Harriet Baskas

Expert on American Airlines

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Stefanie Waldek

Stefanie Waldek

Expert on United Airlines

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Good to know

Low seasonSeptember
Cheapest flight$48
Best time to beat the crowds but there is an average 23% increase in price.
Most popular time to fly and prices are also 9% lower on average.
Flight from Knoxville to Washington Dulles Airport

When to book flights from Knoxville to Washington, D.C.

Are your dates flexible? Find out the best times to travel from Knoxville to Washington, D.C. 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 flights from Knoxville to Washington, D.C.

  • What is the cheapest flight from Knoxville to Washington, D.C.?

    In the last 3 days, the lowest price for a flight from Knoxville to Washington, D.C. was $48 for a one-way ticket and $98 for a round-trip.

  • Do I need a passport to fly between Knoxville and Washington, D.C.?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which airports will I be using when flying from Knoxville to Washington, D.C.?

    When flying out of Knoxville you will be using Knoxville McGhee Tyson. You will be landing at one of these airports: Washington, D.C. Reagan-National or Washington, D.C. Dulles Intl.

  • Which airlines offer Wi-Fi service onboard planes from Knoxville to Washington, D.C.?

    American Airlines, Delta, Hawaiian Airlines, Alaska Airlines, and Virgin Atlantic offer inflight Wi-Fi service on the Knoxville to Washington, D.C. flight route.

  • Which aircraft models fly most regularly from Knoxville to Washington, D.C.?

    The Embraer ERJ-135 / ERJ-140 / ERJ-145 is the aircraft model that flies most regularly on the Knoxville to Washington, D.C. flight route.

  • Which airline alliances offer flights from Knoxville to Washington, D.C.?

    Star Alliance, and oneworld are the airline alliances operating flights between Knoxville and Washington, D.C., with Star Alliance being the most commonly used for this route.

  • On which days can I fly direct from Knoxville to Washington, D.C.?

    There are nonstop flights from Knoxville to Washington, D.C. on a daily basis.

  • Which is the best airline for flights from Knoxville to Washington, D.C., Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Knoxville to Washington, D.C. are Delta and United Airlines. With an average price for the route of $288 and an overall rating of 7.9, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $274 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Knoxville to Washington, D.C.?

    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 Knoxville to Washington, D.C..

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Knoxville to Washington, D.C.?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington, D.C. from Knoxville 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 Knoxville to Washington, D.C.?

    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 Washington, D.C. with an airline and back to Knoxville with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Knoxville to Washington, D.C.?

    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 Washington, D.C. from Knoxville 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 Knoxville to Washington, D.C.

  • Looking for a cheap flight? 25% of our users found flights on this route for $128 or less one-way and $289 or less round-trip.

Prefer to fly direct from Knoxville to Washington, D.C.?

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

Direct departures

Knoxville McGhee Tyson to Washington, D.C.

Monday

American Airlines, United Airlines

American Airlines, United Airlines

Tuesday

American Airlines, United Airlines

American Airlines, United Airlines

Wednesday

American Airlines, United Airlines

American Airlines, United Airlines

Thursday

Allegiant Air, American Airlines, United Airlines

Allegiant Air, American Airlines, +1 more

Friday

American Airlines, United Airlines

American Airlines, United Airlines

Saturday

American Airlines, United Airlines

American Airlines, United Airlines

Sunday

Allegiant Air, American Airlines, United Airlines

Allegiant Air, American Airlines, +1 more

See more direct flights

Direct returns

Washington, D.C. to Knoxville McGhee Tyson

Monday

American Airlines, United Airlines

American Airlines, United Airlines

Tuesday

American Airlines, United Airlines

American Airlines, United Airlines

Wednesday

American Airlines, United Airlines

American Airlines, United Airlines

Thursday

Allegiant Air, American Airlines, United Airlines

Allegiant Air, American Airlines, +1 more

Friday

American Airlines, United Airlines

American Airlines, United Airlines

Saturday

American Airlines, United Airlines

American Airlines, United Airlines

Sunday

Allegiant Air, American Airlines, United Airlines

Allegiant Air, American Airlines, +1 more

See more direct flights

Reviews of the top 4 airlines serving from Knoxville to Washington, D.C.

 
See real verified KAYAK customer reviews for airlines flying from Knoxville to Washington, D.C.. 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 Knoxville to Washington, D.C.? 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.
7.9
DeltaOverall score based on 8126 reviews
8.1Boarding
7.9Comfort
7.2Food
8.5Crew
7.8Entertainment
Airline reviews

Timing, quality of service, promptness and courtesy of the staff

10.0 ExcellentAjai, Jan 2026
DFW - ATL
Read more Delta reviews

Timing, quality of service, promptness and courtesy of the staff

It was last minute due to weather - considering - it was amazing! Good smiles, friendly staff and they were making sure we knew what was going on when and where.

delta last minute gave me a boarding pass for a different flight with no confirmation that they were changing it

The service from the flight attendants were of supreme quality. They greeted and treated everyone with a wide smile. This is totally absent nowadays. Kudos to them!!!!

Excellent flight and got us around tough weather. Only issue was seat TV did not work and crew tried to reboot.

Very large passenger too space from my own seat. Arm board couldn’t be lowered because of his size. It wads very uncomfortable trip, as the flight was full couldn’t move anywhere having back pain because of the position in which I was the entire flight.

was sitting in the jet bridge for 10 minutes in -20 degree weather waiting for my bag

Outdated equipment in disrepair, wifi inoperable. Broken seats, taped air vents, generally poor condition, the 717 showed its age and lack of upkeep.

My flight out of Baton Rouge to Atlanta was delayed by a half hour. This got us into Atlanta airport 30 minutes late. I ran through the airport to get to my connecting flight. As I approached the boarding gate, I saw the boarding door was still open and a passenger was being checked in. But when I got to the gate, the boarding agent told me they had already given away my seat and there were no empty seats on that flight. So I had to take a later flight. That has never happened to me before. Very frustrating.

Connection through Atlanta was difficult. Mechanical issue on plane caused a two hour delay. New gate was a mile away.

Good crew. Boarding delays. Almost two hours wait for the bags in DC.

Unfortunately weather delayed our flight waiting for our plane to arrive and due to a little snow time was needed to deice the plane so departure was very delayed and I missed the connecting flight

It was great. There were some issues prior to takeoff. The weather was poor so we had to go through deicing, and we were delayed a bit by the pilots' concern about one of the engines, but that's aviation. The pilots handled everything with aplomb, and kept us apprised

The seats were comfortable and we had leg room. Great entertainment.

The flight crew where really good. Better then the crew from BNE to SFO

Safe made to destination. Late to start at GVA for icy reasons but we fought our next fly.

Miserable. They moved my seat, but canceled the next leg of my flight. I resolved the issue at my transfer, but that resulted in lost luggage that has taken days off my schedule with no resolution. Worse, they fail to interface effectively with Lufthansa, forcing me to bounce between two equally useless help desks. The apps are unable to handle the situation, the bag dropped off the tracker, and while the call centers are polite, they do not provide written information to assist with cross-airline communication.

l really enjoy very much the flight was very pleasant

The flight was delayed for 1:30 hours for maintenance issues. They should give more information about connecting flights. For a Business Cabin the Crew was mediocre.

The food is terrible. The same pasta or chicken with bad taste and presentation

Concern Regarding Significant Gate Delay and Jet Bridge Issue Dear Customer Relations Team, I am writing to express my disappointment with the experience I had on my recent flight AA 2414 on Sunday January 18, 2026. What should have been a routine departure turned into a frustrating and avoidable delay due to an issue with the jet bridge at the gate. As a result, the flight was delayed by approximately 90 minutes while multiple gate changes were attempted. The lack of clear communication during this period made the situation even more challenging. Passengers were left uncertain about the cause of the delay, the expected timeline, and the next steps. This not only disrupted travel plans but also created unnecessary stress for everyone on board. I understand that operational issues can arise, but a malfunctioning jet bridge and the resulting extended delay suggest an area where procedures or equipment maintenance may need attention. I hope you will review this incident to prevent similar disruptions in the future. I would appreciate acknowledgment of this concern and consideration of appropriate compensation for the inconvenience and lost time caused by this delay. Thank you for taking the time to review my experience. I look forward to hearing from you. Sincerely, Dion Dillard

I got sick nothing contagious but distressing enough and the care I received on the flight was astounding.

Horrible. Both legs of my flight were delayed more than 6 hours. No compensation, no screens on the plane, and the plane was not clean.

Did not get any refreshments. Crew was very nice but limited. Small seats

Wish a flight with more than 2 hours with some snack rather than just cookie/biscuit.

After we'd boarded , they canceled the flight. The crew didn't even know , we just all received text messages. Then after they deplaned us , AA was just like "too bad, go F your self, we sure ain't gonna help you"

Initial flight was cancelled at the time of arrival to the airport, flight alternative requires switching from direct to flight with a layover, and the plane felt like it would split apart, it was so rattle-y.

Weather delay for 2.5 hours followed by half hour crew delay, did not have ginger ale, uncomfortable seats

It was nobody’s fault - but the plane came 4-hrs late and we were updated randomly in 20-30 mins increments which left us hostage to sit and wait expectantly. It was very long and got very late. Our plane didn’t land until nearly 1 am! Also the toilet wasn’t working. The hosts were nice enough but were clearly “about to pass out” as one told me. Lastly, there was no snack or even time for it. Just a bad experience overall.

The boarding crew was incredibly helpful getting me on an earlier flight

It was fine. Nobody was outstandingly friendly but no one was rude and everything was smooth . The captain thanked us for flying but no one greeted me as I walked on the plane or as I exited which is the least they could do lol

Clean, friendly, roomy. But check-in from the phone link was terrible. Repeated attempts wouldn’t save at the final step. Just kept spinning! It was very frustrating. Finally, I used the app (vs website link) to check-in which worked very smoothly on the first attempt.

Check in on the web portal was cumbersome! After several attempts I finally got the boarding pass.

Excellent flight and even arrived 23 min early. No entertainment , or wi fi on board, but I downloaded a couple of movies beforehand which kept me entertained. Really like flying Allegiant airlines.

WE were delayed about an hour and never any communications from the employees working the gate. We also were moved to a total of three gates.

I love how they show love to their customers and care about them too.

I liked how when I got on board how fast we ended up taking off but what I truly disliked was how uncomfortable the seats were. There was truly never a time that I could ever get comfortable during both of my flights. The seats could get away during shorter flights but flights 3 hour plus makes it hard to enjoy.

The crew was great and the flight was very smooth. Can’t really judge food since I did not get any because it costs money. The seat was comfortable for what we bought. Thanks!

Crew was great. No entertainment and food and beverage was for purchase only, even water

It was canceled. The flight wasn’t rescheduled, everyone had to figure out their own new arrangements. They said we would get refunded our original fare and receive an additional $150. We received links for $100 only and they expired before we could activate them.

Everything you need to know for your flight from Knoxville to Washington, D.C.

Information on your arrival and departure airports