Cheap flights To Knoxville (IAD) from $41

Earn rewards on top of your airline miles with Orbitz Rewards

Many airlines offer flexible change policies

Sign up to receive text alerts about your trip

Cheap Flights to Knoxville from $41 One Way, $74 Round Trip

Prices found within past 7 days. Prices and availability subject to change. Additional terms may apply.

Sat, Sep 19 - Wed, Sep 23
ATL
Hartsfield-Jackson Atlanta Intl.
IAD
Washington Dulles Intl.
$74 Roundtrip, found 1 day ago
$74
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Sat, Sep 19 from Hartsfield-Jackson Atlanta Intl. to Washington Dulles Intl., returning Wed, Sep 23, priced at $74 found 1 day ago
Thu, Sep 17 - Mon, Sep 21
ATL
Hartsfield-Jackson Atlanta Intl.
IAD
Washington Dulles Intl.
$76 Roundtrip, found 3 days ago
$76
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Thu, Sep 17 from Hartsfield-Jackson Atlanta Intl. to Washington Dulles Intl., returning Mon, Sep 21, priced at $76 found 3 days ago
Thu, Sep 24 - Wed, Sep 30
ATL
Hartsfield-Jackson Atlanta Intl.
IAD
Washington Dulles Intl.
$78 Roundtrip, found 3 days ago
$78
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Thu, Sep 24 from Hartsfield-Jackson Atlanta Intl. to Washington Dulles Intl., returning Wed, Sep 30, priced at $78 found 3 days ago
Tue, Sep 15 - Sat, Sep 19
ATL
Hartsfield-Jackson Atlanta Intl.
IAD
Washington Dulles Intl.
$80 Roundtrip, found 16 hours ago
$80
Roundtrip
found 16 hours ago
Select Frontier Airlines flight, departing Tue, Sep 15 from Hartsfield-Jackson Atlanta Intl. to Washington Dulles Intl., returning Sat, Sep 19, priced at $80 found 16 hours ago
Sat, Aug 1 - Sat, Aug 1
ATL
Hartsfield-Jackson Atlanta Intl.
IAD
Washington Dulles Intl.
$82 Roundtrip, found 5 hours ago
$82
Roundtrip
found 5 hours ago
Select Frontier Airlines flight, departing Sat, Aug 1 from Hartsfield-Jackson Atlanta Intl. to Washington Dulles Intl., returning Sat, Aug 1, priced at $82 found 5 hours ago
Wed, Aug 19 - Mon, Aug 24
ATL
Hartsfield-Jackson Atlanta Intl.
IAD
Washington Dulles Intl.
$86 Roundtrip, found 3 days ago
$86
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Wed, Aug 19 from Hartsfield-Jackson Atlanta Intl. to Washington Dulles Intl., returning Mon, Aug 24, priced at $86 found 3 days ago
Sat, Oct 10 - Thu, Oct 15
ATL
Hartsfield-Jackson Atlanta Intl.
IAD
Washington Dulles Intl.
$89 Roundtrip, found 4 days ago
$89
Roundtrip
found 4 days ago
Select Frontier Airlines flight, departing Sat, Oct 10 from Hartsfield-Jackson Atlanta Intl. to Washington Dulles Intl., returning Thu, Oct 15, priced at $89 found 4 days ago
Tue, Sep 1 - Tue, Sep 8
ATL
Hartsfield-Jackson Atlanta Intl.
IAD
Washington Dulles Intl.
$90 Roundtrip, found 2 days ago
$90
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Tue, Sep 1 from Hartsfield-Jackson Atlanta Intl. to Washington Dulles Intl., returning Tue, Sep 8, priced at $90 found 2 days ago
Sat, Aug 8 - Tue, Aug 11
ATL
Hartsfield-Jackson Atlanta Intl.
IAD
Washington Dulles Intl.
$93 Roundtrip, found 1 day ago
$93
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Sat, Aug 8 from Hartsfield-Jackson Atlanta Intl. to Washington Dulles Intl., returning Tue, Aug 11, priced at $93 found 1 day ago
Wed, Oct 14 - Sun, Oct 18
ATL
Hartsfield-Jackson Atlanta Intl.
IAD
Washington Dulles Intl.
$95 Roundtrip, found 16 hours ago
$95
Roundtrip
found 16 hours ago
Select Frontier Airlines flight, departing Wed, Oct 14 from Hartsfield-Jackson Atlanta Intl. to Washington Dulles Intl., returning Sun, Oct 18, priced at $95 found 16 hours ago

Knoxville Flight Information

Traveling To
Knoxville
Destination Airport IATA Code
IAD
Number of Airlines Serving
Airlines
Frontier Airlines
Flight Price
$74
Earliest Departing Flight
Latest Departing Flight

Book Your Flight & Hotel Together & Save

Knoxville economy flight packages

Price found within the past 48 hours. Click for updated prices.
Omni Shoreham Hotel
4.0-star property

Omni Shoreham Hotel

Aug 20 - Aug 24

4 night stay

Boston (BOS) to Baltimore (BWI)

JetBlue Airways • Roundtrip • Coach
Save 100% on your flight
Price was $751, price is now $493 per person
$493
per person
found 1 day ago
Eurostars Saint Gregory Dupont Circle Georgetown
4.0-star property

Eurostars Saint Gregory Dupont Circle Georgetown

Aug 6 - Aug 12

6 night stay

Los Angeles (LAX) to Baltimore (BWI)

Southwest Airlines • Non-stop roundtrip • Coach
Save 100% on your flight
Price was $1,040, price is now $635 per person
$635
per person
found 1 day ago
Salamander Washington DC
5.0-star property

Salamander Washington DC

Aug 21 - Aug 24

3 night stay

Boston (BOS) to Baltimore (BWI)

Delta • Coach

Baltimore (BWI) to Boston (BOS)

Southwest Airlines • Coach
Save 100% on your flight
Price was $1,768, price is now $1,102 per person
$1,102
per person
found 1 day ago
Don't see what you're looking for?
See all available trips from Boston to Knoxville
View all trips

Knoxville first class flight packages

Price found within the past 48 hours. Click for updated prices.
Hotel Hive
3.5-star property

Hotel Hive

9.2/10 Wonderful! (1,509 reviews)

Aug 7 - Aug 9

2 night stay

Dayton (DAY) to Baltimore (BWI)

United • Roundtrip • FirstClass
Price was $649, price is now $570 per person
$570
per person
found 1 day ago
Room in the 4th floor was clean and well-lit. Reception team was very helpful; they changed us the following night after realizing we were not honored with a higher floor room. Hive bar staff are very friendly. Didn’t try the rooftop this time as it was very busy. Will be back!

Reviewed on Jul 3, 2026

Arlo Washington DC
4.0-star property

Arlo Washington DC

9.4/10 Exceptional! (1,682 reviews)

Aug 7 - Aug 9

2 night stay

Dayton (DAY) to Baltimore (BWI)

United • Roundtrip • FirstClass
Price was $747, price is now $663 per person
$663
per person
found 1 day ago
Wow!! Amazing stay! Best bed sheets we have ever experienced and the staff is great!! Washington is unbelievable. Thank you for your hospitality.

Reviewed on Jul 3, 2026

Phoenix Park Hotel
3.5-star property

Phoenix Park Hotel

9.4/10 Exceptional! (2,210 reviews)

Aug 7 - Aug 9

2 night stay

Dayton (DAY) to Baltimore (BWI)

United • Roundtrip • FirstClass
Price was $671, price is now $598 per person
$598
per person
found 1 day ago
Very clean and had all I needed or wanted. I would not hesitate to stay again. I especially liked the location close to the Capitol and Union Station.

Reviewed on Jun 30, 2026

Don't see what you're looking for?
See all available trips from Dayton to Knoxville
View all trips

Knoxville

Orbitz provides convenient, one-stop shopping for travelers looking for budget flights to Knoxville or any other low fare domestic or international air travel.

Innovative Orbitz Tools for the Trip Planner on the Move

Now it is even faster to find exclusive deals and book cheap Knoxville flights from any location with our new Orbitz apps. These cutting-edge mobile tools are available free to anyone with an Android device, iPad, or iPhone. Look up Knoxville's most popular attractions, best restaurants, and entertainment venues or check on your flights to Knoxville and make changes to your itinerary while waiting in line for your latte.

Stay on Budget, Earn Miles with Bargain Knoxville Flights

You can find amazing discount fares with Orbitz’s guaranteed low prices or take advantage of last-minute sales and special travel packages. You can also earn points towards your airline frequent flyer programs when you book qualified flights to Knoxville. That means you can rack up money-saving points and miles for future use while saving money now.

We Are Just a Phone Call Away If You Need Us

Booking, changing, or canceling your Knoxville flights is a breeze with Orbitz’s online and mobile tools, but that doesn't mean that we leave you hanging if you want to speak with one of our representatives. If you need help, just contact our Customer Service by email or phone. To enjoy a less stressful trip, be sure to sign up for instant alerts so we can send you any updates or delays relating to your flights to Knoxville to your mobile phone or email.

Frequently asked questions

Which airlines fly to Knoxville?
You can pick from 20 airlines that operate services to Washington Dulles Intl. Airport (IAD), the main airport in the city. With all that choice, you're bound to get your hands on a fabulous deal. Here are some of the best international airlines that'll get you to Knoxville — and then exploring every corner of this city:

  • United Airlines - 442 flights to Knoxville per month
  • Air Canada - 86 flights to Knoxville per month
  • Avianca - 73 flights to Knoxville per month

What is the best airport to fly to in Knoxville?
Washington Dulles Intl. Airport (IAD). It's the city's main terminal and is located around 30 miles southeast of the downtown area. You'll be dropping off your suitcase and discovering the best of Knoxville shortly after flying in.
How much is a flight to Knoxville?
If you're after a return flight, airfares fluctuated between $74 and $95 this week. The best price for one-way was $41, originating from Atlanta (ATL).
How to book the cheapest flight to Knoxville?
With some of the most affordable flight deals around, bagging a bargain is easy with Orbitz. The following handy hints will help you snap up cheap flights to Knoxville — and leave you with more money to play with:

  • Depending on where you're leaving from, choose the 'Nearby airports' function (located under the departure and arrival options). Oftentimes, alternative departure points will offer better prices on fares.
  • If you're flexible with your schedule, click on the 'Show flexible dates' link. It'll display the flight deals for the days either side of your selected departure. Airfares often vary depending on what day of the week it is.
  • Hit 'Show options' to narrow down your search results. You can pick your preferred seating class and airline here. Under 'Sort & Filter' to the left, you can even specify whether you want to fly in the morning, afternoon or evening.
  • Reserve your seat as soon as you've decided on your travel dates. While you can get lucky on occasion, airline tickets rarely get more affordable as your departure date gets closer.
  • Save more on your adventure by bundling your hotel, flights and car rentals into one convenient package deal. Your budget will thank you for it.
  • Flying during busier seasons means expensive airfares. Try to plan your vacation outside of popular dates, such as Easter, Thanksgiving and school breaks.

How long is a flight to Knoxville?
Flight times differ depending on where you're leaving from. But to give you a better idea of the average duration, have a look at these well-known routes to Knoxville:

  • Atlanta, GA (ATL-Hartsfield-Jackson Atlanta Intl.) to Washington Dulles Intl. Airport (IAD) - 1 hour and 45 minutes
  • New York, NY (LGA-LaGuardia) to Washington Dulles Intl. Airport (IAD) - 1 hour and 28 minutes
  • Denver, CO (DEN-Denver Intl.) to Washington Dulles Intl. Airport (IAD) - 3 hours and 19 minutes

What is the best time to book a flight to Knoxville?
Snap up a bargain and secure your seats to Knoxville in January. If you've missed this month, fear not. February and August often have affordable airfares as well. Just be careful you don't snooze on a sale — cheap flights pop up and disappear in an instant!
What day of the week is the cheapest to book a flight to Knoxville?
Typically, Tuesdays, Wednesdays and Saturdays are the cheapest days of the week to book a flight to Knoxville. If you're after unbeatable airfares, search across those days and you just might land an incredible flight deal.
What is the cheapest day of the week to fly to Knoxville?
You can score cheap flights to Knoxville by taking to the skies on a Monday, according to Orbitz data from 2020. Tuesday is the next most affordable day, while Saturday has the most costly airfares. Whether you prefer to save a bundle or fly out on any day that's convenient, you'll always get a terrific deal with Orbitz.
What is the cheapest month to fly to Knoxville?
If you have some flexibility with your travel plans, think about departing during August. Orbitz data shows that this is generally the best month to fly out if you want cheap flights to Knoxville. As you would expect, fares climb in the busy month of June and flights book out fast.
Which airlines allow free cancellation?
If you think your travel plans could change, Orbitz can help you find a flexible fare. All you have to do is click on "Filter by flexible change policies" when searching for your Knoxville flights. We'll show you all the airlines that include free cancellation within 24 hours and no change fees — in addition to irresistibly low prices.
What do I need for the flight to Knoxville?
The secret to a smooth and comfortable flight is being well prepared. Here are some useful tips to help you get ready for your trip:

  • Your travel documents are the most important items you'll need to have with you on your flight. To avoid any problems while checking in, make sure that the personal info on your ticket matches your government-issued ID.
  • Make time fly by even quicker on your short hop by packing the right stuff. Think yummy snacks, bottled water and entertainment. If you want your journey to Knoxville to go nice and quietly, squeeze some noise-canceling headphones or earplugs into your bag as well.
  • Even if you're flying when it's hot and sticky outside, take a sweater or hoodie on board with you. Cabins are notorious for getting a bit chilly!

How many direct flights are there to Knoxville?
Your next amazing adventure is just one easy plane trip away, with 689 direct services to Knoxville every month. Search for your flight with Orbitz and find a terrific deal with United Airlines, Delta Air Lines or Southern Airways Express. Other reputable carriers that provide nonstop services include American Airlines, Southwest Airlines and Air Canada.
How do I get cheap first-class/business deals to Knoxville?
There are ways of booking first or business-class tickets to Knoxville that won't burn through your budget. Pick up a seat in the pointy end of the plane for less with these practical tips:

  • Flexibility isn't confined to yoga. Have some room to move around your travel dates so you can snap up more affordable airfares when a sale comes along.
  • Many low-cost carriers offer top-notch business-class seating for a reasonable price.
  • Bid for an upgrade in online auctions or upgrade with loyalty points.

How to get into Knoxville from the airport?
A Washington Dulles Intl. Airport (IAD) car rental is one of the easiest ways to reach the downtown area of Knoxville out of Washington Dulles Intl. Airport (IAD). Arrange a ride with on-site outlet Hertz and get on the road soon after touching down. The center of the city is 30 miles north of IAD. Prefer to familiarize yourself with your surroundings before you jump into the driver's seat? Take a taxi or public transportation into Knoxville and rent a car a day or two later from the city center with one of our Knoxville car rentals instead.
What is the best time to go to Knoxville?
If you want to immerse yourself in the culture of Knoxville in the tourist season, March, August and November are the top months to visit. June 20 marks the onset of the summer season in the Northern Hemisphere and is an excellent time to travel if you delight in the open air. During this time of year, average daily temperatures range from 65 ºF to 85 ºF.

More to Explore

Fare, taxes & fees: Fares include all taxes and fees, except baggage fees. Rates shown reflect fares found by other Orbitz users over the past 7 days. Due to rapidly changing airline prices & seat availability, these fares may no longer be available.

Refunds/changes/cancellations: Itinerary changes, if permitted for the fare, will have a $30 service fee charged by Orbitz. Additional airline charges may apply.

Other conditions: Schedules, fares and rules are subject to change without notice. Seats are limited and may not be available on all flights/dates or in all markets. Lower fares may be available. Fares will not be honored retroactively or in exchange for any wholly/partially unused ticket. Tickets are non-transferable and non-refundable. Fare rules are provided for the selected itinerary before booking.