Where Is Hot in September from Knoxville? 2026
15 warm destinations have direct flights from Knoxville in September. Washington has the best overall weather. Jacksonville has the lowest fares from €75.
|
Washington
United States
|
21°C | 1h 20m | €190 | €93/night | 136 |
|
Philadelphia
United States
|
23°C | 1h 20m | €81 | €71/night | 111 |
|
Baltimore
United States
|
24°C | 1h 20m | €162 | €73/night | 116 |
|
Newark
United States
|
23°C | 1h 40m | €129 | €87/night | 45 |
|
Detroit
United States
|
22°C | 1h 20m | €428 | €89/night | 129 |
|
Boston
United States
|
21°C | 2h | €108 | €95/night | 35 |
|
Nashville
United States
|
27°C | €214 | €60/night | 113 | |
|
Charlotte
United States
|
26°C | €634 | €67/night | 121 | |
|
Atlanta
United States
|
28°C | €294 | €54/night | 134 | |
|
Las Vegas
United States
|
31°C | 3h 40m | €158 | €86/night | 35 |
|
Jacksonville
United States
|
30°C | 1h 20m | €75 | €66/night | 18 |
|
Orlando
United States
|
30°C | 1h 20m | €98 | €61/night | 230 |
|
Dallas
United States
|
32°C | 1h 40m | €208 | €52/night | 234 |
|
Fort Lauderdale
United States
|
30°C | 1h 40m | €92 | €79/night | 86 |
|
Phoenix
United States
|
33°C | 3h 40m | €154 | €71/night | 21 |
Temperatures are historical averages for September. Prices updated 9 Sep 2026.
Warmest destinations from Knoxville in September
The warmest places to fly to directly from Knoxville in September, ranked by average daytime temperature. All destinations average 18°C or above and are reachable on a direct flight.
Washington
21°C avg daytime
From €190 return
1h 20m direct
136 trips available
Philadelphia
23°C avg daytime
From €81 return
1h 20m direct
111 trips available
Baltimore
24°C avg daytime
From €162 return
1h 20m direct
116 trips available
Newark
23°C avg daytime
From €129 return
1h 40m direct
45 trips available
Detroit
22°C avg daytime
From €428 return
1h 20m direct
129 trips available
Frequently Asked Questions
Where is hot in September from Knoxville?
There are 15 warm destinations reachable by direct flight from Knoxville in September. Washington is among the top picks, with average daytime temperatures around 21°C.
Which is the warmest place to fly to from Knoxville in September?
Phoenix is typically the warmest destination reachable by direct flight from Knoxville in September, averaging around 33°C during the day.
What is the cheapest warm holiday from Knoxville in September?
Jacksonville is among the cheapest warm destinations from Knoxville in September, with return fares from around €75.
How does FairFareFinder calculate the best destinations for September?
FairFareFinder uses live flight and hotel price data combined with historical weather averages to rank destinations. Temperatures shown for dates beyond 14 days ahead are historical averages for September, not live forecasts. Prices are updated approximately every 6 hours.
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