TYS - WAS

$44 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 11/20. 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
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$129
Overall average: $364
Allegiant Air
Thu 11/20Sun 12/7
TYS - IAD • Non-stop
Cheapest one-way
$44
Typical prices: $155-$284
Allegiant Air
Thu 11/20
TYS - IAD • Non-stop
Our travelers' advice
AI-generated summary based on content written by travel experts
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 $129 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Top routes
TYS-IAD
Cheapest • 47% average savings
TYS-IAD
Most popular
Insights
Insights
Insights
Insights
When to book
4 weeks
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 33% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
July
Cheapest • 23% price drop
October
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.

Thu, Nov 20 - Sun, Dec 7
Allegiant Air Logo
5:49 pm - 7:33 pmTYS-IAD
1h 44mnonstop
Allegiant Air Logo
7:57 pm - 9:37 pmIAD-TYS
1h 40mnonstop
$129Allegiant Air
Find Deal
Thu, Nov 20 - Fri, Dec 5
Multiple Airlines Logo
5:49 pm - 7:33 pmTYS-IAD
1h 44mnonstop
Multiple Airlines Logo
9:20 pm - 1:02 pmIAD-TYS
15h 42m1 stop
$132Multiple Airlines
Find Deal
Thu, Dec 11 - Sat, Dec 13
Frontier Logo
4:52 pm - 4:59 pmTYS-DCA
24h 07m1 stop
Frontier Logo
6:00 pm - 3:57 pmDCA-TYS
21h 57m1 stop
$162Frontier
Find Deal
Thu, Dec 4 - Sat, Dec 6
Frontier Logo
4:52 pm - 1:06 pmTYS-DCA
20h 14m1 stop
Frontier Logo
6:00 pm - 3:57 pmDCA-TYS
21h 57m1 stop
$179Frontier
Find Deal
Thu, Nov 27 - Thu, Nov 27
United Airlines Logo
2:25 pm - 4:08 pmTYS-IAD
1h 43mnonstop
United Airlines Logo
6:36 pm - 8:20 pmIAD-TYS
1h 44mnonstop
$184United Airlines
Find Deal
Thu, Dec 4 - Sat, Dec 6
American Airlines Logo
6:00 am - 7:48 amTYS-DCA
1h 48mnonstop
American Airlines Logo
9:03 am - 10:50 amDCA-TYS
1h 47mnonstop
$189American Airlines
Find Deal
Tue, Nov 25 - Fri, Nov 28
United Airlines Logo
5:45 am - 7:28 amTYS-IAD
1h 43mnonstop
United Airlines Logo
9:00 am - 10:48 amIAD-TYS
1h 48mnonstop
$189United Airlines
Find Deal
Thu, Nov 13 - Tue, Nov 18
American Airlines Logo
11:22 am - 12:59 pmTYS-DCA
1h 37mnonstop
American Airlines Logo
7:49 pm - 9:34 pmDCA-TYS
1h 45mnonstop
$194American Airlines
Find Deal
Wed, Nov 19 - Sat, Dec 6
Delta Logo
3:53 pm - 9:32 pmTYS-IAD
5h 39m1 stop
Delta Logo
9:00 am - 2:50 pmIAD-TYS
5h 50m1 stop
$209Delta
Find Deal
Fri, Jan 16 - Tue, Jan 20
Delta Logo
5:25 pm - 11:10 pmTYS-DCA
5h 45m1 stop
Delta Logo
6:00 am - 11:10 amDCA-TYS
5h 10m1 stop
$209Delta
Find Deal
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.

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

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

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 $90 on the route between Knoxville (TYS) and Washington, D.C. Dulles Intl Airport (IAD). However, over the past month, flights between Knoxville (TYS) and Baltimore (BWI) were, on average, 47% 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 Mondays 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 Sundays.

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 July, where tickets cost $214 (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 $318 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 $281, 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 4 weeks before departure, which saves you about 33% 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.

 
Snippets provided in this section are AI-generated based on a summarization of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
American Airlines

American's Main Cabin Extra includes early boarding and complimentary alcoholic drinks.


American Airlines offers 20 minutes of free Wi-Fi by watching a short advertisement.

United Airlines

United offers Priority Boarding to avoid gate-checking carry-ons, placing you in Zone 2.


United's Economy Plus seats offer up to six inches more legroom than standard economy.

Our travel experts
Harriet Baskas

Harriet Baskas

Expert on American Airlines

Harriet Baskas

Harriet Baskas

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.

Read more
Stefanie Waldek

Stefanie Waldek

Expert on United Airlines

Stefanie Waldek

Stefanie Waldek

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.

Read more

Good to know

Low seasonSeptember
Cheapest flight$44
Best time to beat the crowds but there is an average 18% increase in price.
Most popular time to fly and prices are also 8% 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 $44 for a one-way ticket and $129 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, 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.?

    SkyTeam, Star Alliance, and oneworld are the airline alliances operating flights between Knoxville and Washington, D.C., with SkyTeam 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 $308 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 $214 or less one-way and $285 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

Allegiant Air, American Airlines, United Airlines

Allegiant Air, American Airlines, +1 more

Tuesday

Allegiant Air, American Airlines, United Airlines

Allegiant Air, American Airlines, +1 more

Wednesday

American Airlines, United Airlines, Allegiant Air

American Airlines, United Airlines, +1 more

Thursday

Allegiant Air, American Airlines, United Airlines

Allegiant Air, American Airlines, +1 more

Friday

Allegiant Air, American Airlines, United Airlines

Allegiant Air, American Airlines, +1 more

Saturday

Allegiant Air, American Airlines, United Airlines

Allegiant Air, American Airlines, +1 more

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

Allegiant Air, American Airlines, United Airlines

Allegiant Air, American Airlines, +1 more

Tuesday

Allegiant Air, American Airlines, United Airlines

Allegiant Air, American Airlines, +1 more

Wednesday

American Airlines, United Airlines, Allegiant Air

American Airlines, United Airlines, +1 more

Thursday

Allegiant Air, American Airlines, United Airlines

Allegiant Air, American Airlines, +1 more

Friday

Allegiant Air, American Airlines, United Airlines

Allegiant Air, American Airlines, +1 more

Saturday

Allegiant Air, American Airlines, United Airlines

Allegiant Air, American Airlines, +1 more

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 7992 reviews
7.9Comfort
7.3Food
7.9Entertainment
8.2Boarding
8.5Crew
Airline reviews

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

8.0 ExcellentJulie, Oct 2025LAX - SFO
Read more Delta reviews

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

They ended up paying for the bag twice, but the counter wouldn't take my baggage receipt. Left it to me to resolve. Not sure how to resolve the issue.

The customer service before board was very rude and when I expressed my concerns about making the connecting flight she laughed and told me I bought the wrong ticket. I explained once it showed the flight was delayed it no longer let me change seats or anything. I was trying to upgrade to make sure I would get to the next gate on time.

Non stop on long haul is the way to go. Great experience

The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.

They changed planes and the new plane couldn’t carry enough fuel to fly across the country so we had to stop in Kansas City to refuel. Flight was delayed .

Flight was too crowded and seats are too small, especially since passengrs are getting larger. Having a middle seat is ALWAYS tough! Woman on my left was large & kept creeping in to my space. Flight personnel were great! Have more savory rather than sweet snacks please.

Flight was crowded and the woman sitting on my left was large & kept crouching in to my space. You need bigger seats or smaller passengers to fit into the seats you DO have! Snack were OK. Would appreciate if airlines had more savory rather than sweet snacks, thank you!

Delayed flight (1hour) plus a long layover after an overnight flight with no backup plane available.

We were delayed, which I think had to do with air traffic control. Otherwise, everything was great.

Crew was dismissive. Snacks and refills not offered. Poor business class experience. Bed not comfortable compared to Emirates or BA.

Flight was delayed for 5 hours because crew didn’t have enough time to rest - this seems like it could have been avoided with better scheduling. Food was not good.

IAD with the archaic people movers is just a place to be avoided.

Overall, it was good. I was seating next to a wonderful lady and did not notice how time flew. Thanks

This is the best united airlines flight that I took. The crew was very friendly and the food was tasty!

It is clear that someone knew, and competent, is in charge of food at United Airlines at least for the international flights. I was flying in coach, but the choices of the dinner were excellent. Tasty, and appropriate size. I had the beef, which was a little bit like a shepherds pie, and it was good. Nothing comparable has been served on a United flight in years. It will not be confused with three star food, but it is very good for airline food. Even better was the breakfast choice between a cinnamon roll and a breakfast sandwich. I chose the breakfast sandwich which was absolutely delicious and which I would happily order again at my local Starbucks or Panera. It is clear that someone knew indifferent is in charge of the food and it’s about time.

Had one staff that was not pleasant. Seems they are stressed with too many people to care for.

I would have liked an opportunity to move to a different seat ( even would have checked in my hand luggage)as I had health issues where I didn't have to clamber over the passenger next to me to for toilet use/ movement [ She was a highly unpleasant neighbor to sit next to]. In addition, I found that my European phone plan had run out of data and so I was not receiving emails from yourselves on airport wifi to be able to check in online and verifications difficult as did not accept the ticket number I had. I asked for an extra blanket but was told there was none. Then I saw other passengers receiving them. I couldn't eat the food and asked for snacks : Stewardess said " on the way" but they did not bring. The best bit was the check in process in Lisbon. Very efficient. However, I did not understand why we had to collect our bags at Washington then go through customs again. It was not explained. I also with my leg and health issue had approximately mile walk to the gate ( which then changed) . There appeared to be no moving walkways or help provided.

The attendant were friendly. I suggest you have a medical attendant on board every flight so that in case someone is sick , he/she will help them.

We had a very long diversion and our food voucher didn’t work because the restaurants were closed

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

Terrible. Flight delayed for more than 8 hours with only a $12 meal voucher provided for the inconvenience. The airplane did not have breaks on arrival yet they still made us go through the motions and board on time knowing we could not take off then sit for 40+ minutes before having to get of the time. A complete waste of my time. I cannot believe they can stay business with these shenanigans. I’ll avoid this company like the plague moving forward as the lack of accountability is disgraceful.

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

I didn’t like anything, being platinum pro get you absolutely nowhere and does not increase the customer service treatment whatsoever anymore. My flight was canceled and they put me on a flight eight hours later that would’ve got me back in the middle of the night. They could’ve easily move me up to an hour Prior on an earlier flight. My second flight was unreasonable to take, the third flight was also canceled due to mechanical issues like the first flight. I don’t know what’s going on with American, but they are falling apart, after seven flight changes I finally got home, Unreasonable.

Great experience. Flight boarded easily. Departed early. Smooth flight. Great arrival in DC--almost no taxing! Almost direct to gate from runway. Crew was terrific. Same cookies and beverages in main cabin. I did not use the entertainment system on this flight.

Flight delayed on both ends - have a gate ready at DCA, don't make us sit for 30min after being late to take off as well.

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.

The plane had originated in Las Vegas at 6:30 in the morning and flew to Moline where we boarded. The flight left around 12:30 PM and there were no boxed snacks available and many of the alcoholic beverages were unavailable. I would find it hard to believe that that many of the passengers coming from Las Vegas at 6:30 in the morning, drank and ate that much of the items. I can only come to the conclusion that someone failed to stock the plane for the round-trip. This is a huge revenue failure for the airline and disappointment for the passengers. The flight crew did not seem happy to be there and did not engage with passengers. Allegiant you can do better.

They did not let my husband on the plane with our service animal at the last minute. Do NOT fly this airline with a service animal!

Tight! Seats are not designed for those of us who wear extra-large clothes.

The non-stop flight from Grand Rapids was excellent. I neither expected or needed a budget flight and Allegiant made the trip easy and for an affordable price, Arriving at the Mesa Airport (AZA) is a delight compared to the international airport. For our return flight, we were able to arrive 75 minutes before the flight, return the rental car, check our bag and make it to the gate in plenty of time. That would never happen at most airports.

Easiest flights I’ve ever taken. Plane was comfortable without overly crowded seating.

Terrible. Still have not received the refund from them. They sent it to some account that I don't even know. Spoke with costumer service and they are unable to help.

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

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.