Cheap flights to Knox County

View €77 flight on Thu, 26 Mar 2026Opens in a new window

Popular airlines to Knox County

  • American Airlines

  • Delta

  • United

  • Southwest Airlines

  • Spirit Airlines

  • Frontier Airlines

  • Alaska Airlines

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 15% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap round-trip flights to Knox County

Prices were available within the past 7 days and start at €77 for one-way flights and €185 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Thu, 26 Mar - Sun, 29 Mar
BNA
Nashville
CMH
Columbus
€185 Return, found 10 hours ago
€185
Return
found 10 hours ago
Select American Airlines flight, departing Thu, 26 Mar from Nashville to Columbus, returning Sun, 29 Mar, priced at €185 found 10 hours ago
United
Thu, 26 Mar - Sun, 29 Mar
BNA
Nashville
CMH
Columbus
€211 Return, found 10 hours ago
€211
Return
found 10 hours ago
Select United flight, departing Thu, 26 Mar from Nashville to Columbus, returning Sun, 29 Mar, priced at €211 found 10 hours ago
American Airlines
Thu, 26 Mar - Sun, 29 Mar
BNA
Nashville
CMH
Columbus
€219 Return, found 10 hours ago
€219
Return
found 10 hours ago
Select American Airlines flight, departing Thu, 26 Mar from Nashville to Columbus, returning Sun, 29 Mar, priced at €219 found 10 hours ago
American Airlines
Wed, 4 Mar - Sun, 8 Mar
BOS
Boston
CMH
Columbus
€287 Return, found 3 hours ago
€287
Return
found 3 hours ago
Select American Airlines flight, departing Wed, 4 Mar from Boston to Columbus, returning Sun, 8 Mar, priced at €287 found 3 hours ago
Delta
Wed, 4 Mar - Sun, 8 Mar
BOS
Boston
CMH
Columbus
€333 Return, found 3 hours ago
€333
Return
found 3 hours ago
Select Delta flight, departing Wed, 4 Mar from Boston to Columbus, returning Sun, 8 Mar, priced at €333 found 3 hours ago
British Airways
Wed, 25 Nov - Mon, 30 Nov
DUB
Dublin
CMH
Columbus
€622 Return, found 5 days ago
€622
Return
found 5 days ago
Select British Airways flight, departing Wed, 25 Nov from Dublin to Columbus, returning Mon, 30 Nov, priced at €622 found 5 days ago
British Airways
Sun, 1 Mar - Sat, 7 Mar
DUB
Dublin
CMH
Columbus
€670 Return, found 5 days ago
€670
Return
found 5 days ago
Select British Airways flight, departing Sun, 1 Mar from Dublin to Columbus, returning Sat, 7 Mar, priced at €670 found 5 days ago
Lufthansa
Thu, 26 Feb - Wed, 4 Mar
VIE
Vienna
CMH
Columbus
€727 Return, found 4 days ago
€727
Return
found 4 days ago
Select Lufthansa flight, departing Thu, 26 Feb from Vienna to Columbus, returning Wed, 4 Mar, priced at €727 found 4 days ago
Lufthansa
Thu, 26 Feb - Wed, 4 Mar
VIE
Vienna
CMH
Columbus
€740 Return, found 4 days ago
€740
Return
found 4 days ago
Select Lufthansa flight, departing Thu, 26 Feb from Vienna to Columbus, returning Wed, 4 Mar, priced at €740 found 4 days ago
Iberia
Tue, 19 May - Tue, 26 May
DUB
Dublin
CMH
Columbus
€762 Return, found 2 days ago
€762
Return
found 2 days ago
Select Iberia flight, departing Tue, 19 May from Dublin to Columbus, returning Tue, 26 May, priced at €762 found 2 days ago

About Knox County

Expedia offers flights to Knox County to meet every traveller's needs. Whatever your flight need - Expedia has the flight for you. So choose from flights to Knox County or destinations around the world and discover how easy it is to make your flight reservations on Expedia.

Frequently asked questions

How do I find cheap flights to Knox County that have flexible change policies?
By using our convenient "No change fee" filter, that's how. All you have to do is enter your preferred dates and destination, click "Search," then click the checkbox directly below the "Flexible change policies" heading (top left-hand side of your screen). Expedia makes it a snap to find flexible and affordable fares to Knox County.
Which airlines fly to Knox County?
When you're ready to lock in your seat to or near Knox County, these quality airlines look forward to welcoming you on board:

  • American Airlines - 1,075 flights to or near Knox County each month, including 1,075 flights to John Glenn Columbus Intl. Airport (CMH) per month.
  • Delta Air Lines - 771 flights to or near Knox County each month, including 771 flights to John Glenn Columbus Intl. Airport (CMH) per month.
  • Southwest Airlines - 663 flights to or near Knox County each month, including 663 flights to John Glenn Columbus Intl. Airport (CMH) per month.

How can I find cheap tickets to Knox County?
One of the best ways to nab cheap tickets to Knox County is to be flexible with your travel dates. Search for your flights, then click "flexible dates" at the top of your results. It will reveal the cheapest prices for nearby days. The lowest price for a flight to Knox County in the last seven days was €185. Booking well ahead will generally help you pick up an even better deal.
How much is a flight to Knox County?
If you were jetting one way from Nashville (BNA), you could've picked up a low-cost fare for just €77 in the last seven days. Return flights to Knox County ranged from €185 to €762 during this same period.
What are the most popular airports to fly into in Knox County?
Get ready to pack your bags and land at one of these busy Knox County airports:

  • John Glenn Columbus Intl. Airport (CMH) - 3,385 flights per month.
  • Rickenbacker Intl. Airport (LCK) - 121 flights per month.

How much is a plane ticket to Knox County?
Flights to Knox County ranged from €185 to €762 in the last seven days. Normally, the sooner you book the better the deal.
What is the best time to go to Knox County?
A lovely time to go to Mount Vernon is after June 20 when the summer season starts. In Knox County's busiest city, temperatures vary from 16ºC to 27ºC at this time — ideal weather for sightseeing! February, March and April are the most popular months for tourists.
What months are the cheapest to book a flight to Knox County?
To land cheap flights to Knox County, try to book sometime in February when prices are at their cheapest. When's the most costly? In the USA, it's the festive month of December.

Trending flights to Knox County

These prices were available within the past 7 days. Prices quoted are per person, return, for the period specified. Prices and availability are subject to change. Additional terms apply.

British Airways
Wed, 25 Nov - Mon, 30 Nov
DUB
Dublin
CMH
Columbus
€622 Return, found 5 days ago
€622
Return
found 5 days ago
Select British Airways flight, departing Wed, 25 Nov from Dublin to Columbus, returning Mon, 30 Nov, priced at €622 found 5 days ago
*Available to Expedia members.