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SAR1,439 Cheap Flights to Knoxville , MD

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How much is the cheapest flight to Knoxville?

Prices were available within the past 7 days and start at SAR1,439 for one-way flights and SAR2,255 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Royal Jordanian
Swiss International Air Lines
Etihad Airways
British Airways
Lufthansa
Friday, 16 October, 2026 - Sunday, 18 October, 2026
LHR
London
IAD
Washington
SAR2,732
Roundtrip
found 21 hours ago
Select Lufthansa flight, departing Friday, 16 October, 2026 from London to Washington, returning Sunday, 18 October, 2026, priced at SAR2,732 found 21 hours ago

Frequently asked questions

How do I find cheap flights to Knoxville that have flexible change policies?
We get that things can change from one day to the next, so reserving a flexible fare with Expedia is always a wise idea. Just tick the "No change fee" box below the "Flexible change policies" filter. Your low-cost, flexible flight to Knoxville is just a few clicks away.
Which airlines fly to Knoxville?
Wherever you're planning to head to in Knoxville and whenever you're hoping to take off, you'll discover your ideal flight with one of these top airlines:
  • American Airlines - 7,098 flights to or near Knoxville each month, including 6,885 flights to Ronald Reagan Washington National Airport (DCA) and 212 to Washington Dulles Intl. Airport (IAD) per month.
  • United Airlines - 6,077 flights to or near Knoxville each month, including 5,270 flights to Washington Dulles Intl. Airport (IAD) and 806 to Ronald Reagan Washington National Airport (DCA) per month.
  • Delta Air Lines - 1,659 flights to or near Knoxville each month, including 1,304 flights to Ronald Reagan Washington National Airport (DCA) and 355 to Washington Dulles Intl. Airport (IAD) per month.
How can I find cheap tickets to Knoxville?
In the last seven days, SAR2,255 was the best price for a flight to Knoxville. If you'd love to save even more, book well ahead of time and be flexible with your dates. Search for your trip to Knoxville, then see prices for nearby days by clicking on the "flexible dates" link above.
How much is a flight to Knoxville?
The cost of a round-trip flight to Knoxville in the last seven days fluctuated between SAR2,255 and SAR2,732. If you were flying one way from Jeddah (JED), you could have nabbed a deal from only SAR1,439.
What are the most popular airports to fly into in Knoxville?
Choosing the best airport comes down to factors such as your airline, budget and where you plan to explore. These are your options in Knoxville:
  • Ronald Reagan Washington National Airport (DCA) - 11,147 flights per month.
  • Washington Dulles Intl. Airport (IAD) - 6,388 flights per month.
When is the cheapest time to fly to Knoxville?
If you're not fixed on what date you travel to Knoxville, try to fly out early in the week. The most economical day to take off is generally Tuesday, followed by Monday. Saturday is typically the most expensive day, with many vacationers preferring to fly on weekends.
How much is a plane ticket to Knoxville?
Prices ranged anywhere from SAR2,255 to SAR2,732 over the last seven days. When you're ready to book, we're here to help land an awesome deal to Knoxville.
What months are the cheapest to book a flight to Knoxville?
February is the best month to snap up a fabulous deal to Knoxville. Be aware that the costliest time to purchase tickets in the USA isn't during the height of summer, but in December.
How long is a flight to Knoxville?
Flight times can vary for many different reasons, including where your point of departure is. Here's a list of average flight times for some of the busiest domestic routes to Knoxville:
  • Boston, MA (BOS-Logan Intl.) to Ronald Reagan Washington National Airport (DCA) - 1 hour and 44 minutes
  • Atlanta, GA (ATL-Hartsfield-Jackson Atlanta Intl.) to Ronald Reagan Washington National Airport (DCA) - 1 hour and 46 minutes
  • Chicago, IL (ORD-O'Hare Intl.) to Ronald Reagan Washington National Airport (DCA) - 1 hour and 51 minutes

Book with confidence

Find Your Flights to Knoxville IAD

Cheap flights to Knoxville (IAD)

Get started finding a cheap flight to Knoxville on Expedia by either choosing a deal on this page or entering into the search bar your travel dates, origin airport, and whether you want roundtrip or one-way airfare. You can filter for flexibility, number of stops, airline, and departure/arrival times to find the best flight for you.

We recommend using the ‘Flexible Dates’ calendar at the top of the page to see the price of plane tickets on the surrounding dates. This allows you to pick the cheapest days to fly if your trip allows flexibility and score cheap flight deals to Knoxville.

Roundtrip prices range from SAR2,255 - SAR2,732, and one-ways to Knoxville start as low as SAR1,439.

Be aware that choosing a non-stop flight can sometimes be more expensive while saving you time. And routes with connections may be available at a cheaper rate.

Airlines that fly to Knoxville (IAD)

You have several options for which airline you choose to travel with to Knoxville. There are 10 airlines flying into IAD: Royal Jordanian, Etihad Airways, American Airlines, Qatar Airways, Saudia, Swiss International Air Lines, British Airways, Lufthansa. 

Cheap plane tickets may be available from different airlines at different times and with unique terms. It’s best to understand the details of each airline’s offer before judging its value.

For example, if you plan to check a bag or bring a carry-on, check whether the cheap airfare deal includes a baggage allowance. If not, verify whether the baggage fee is higher than the difference of other airline plane ticket deals offering free checked/carry-on baggage in exchange for a slightly higher airfare. 

Find the best deals

At Expedia, we source many flight deals from multiple providers, so you can easily find the best deals that are right for you. A great strategy for getting the best deals can be to make sure you book and travel at the optimal times. Airfare to Knoxville (IAD) varies throughout the year based on seasonal demand. You’ll see the lowest rates for roundtrips to IAD in October and in October for one-ways.

Cancellation & flexibility

To change or cancel eligible flights, go to ‘My Trips’ and navigate to your itinerary. If you booked within the last 24-hours, you might be able to cancel your flight for free. Learn more about flight changes or cancellations from our customer service portal. Some plane tickets are available with no change fees, which you can filter for during your search.

Find Your Flights to Knoxville IAD

Travel information

Destination airport
Washington Dulles Intl.
Destination airport IATA code
IAD
Destination city name
Washington
Roundtrip price
SAR2,255

Trending flights to Knoxville

Prices were available within the past 7 days and start at SAR1,439 for one-way flights and SAR2,255 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Royal Jordanian