Connect in the morning. The same one-hour layover misses 1 time in 10 at 8 am and 38% of the time at 7 pm.
Nonstops
Nonstop details →Best connections, one ticket
Ranked by chance you reach Knoxville on time. Total trip = scheduled departure to arrival, layover included. Layovers up to 4 hours. Pick a connection for the details.
| AmericanDetails → | PHL 06:00 → CLT 07:53AA 3139 | 3h 18m Charlotte | CLT 11:11 → TYS 12:34AA 5953 · flown by Piedmont | 6h 34m | 99% | 88% |
| DeltaDetails → | PHL 05:15 → ATL 07:22DL 1269 | 2h 43m Atlanta | ATL 10:05 → TYS 11:09DL 1743 | 5h 54m | 99% | 86% |
| DeltaDetails → | PHL 06:25 → ATL 08:32DL 1152 | 3h 45m Atlanta | ATL 12:17 → TYS 13:16DL 4724 · flown by Endeavor | 6h 54m | 99% | 78% |
| UnitedDetails → | PHL 06:10 → IAD 07:19UA 3693 · flown by Republic | 1h 41m Dulles | IAD 09:00 → TYS 10:42UA 4257 · flown by CommuteAir | 4h 32m | 99% | 77% |
| DeltaDetails → | PHL 08:05 → ATL 10:12DL 1180 | 3h 40m Atlanta | ATL 13:52 → TYS 14:49DL 1148 | 6h 44m | 98% | 76% |
| DeltaDetails → | PHL 06:10 → DTW 07:50DL 1540 | 50m Detroit | DTW 08:40 → TYS 10:22DL 5347 · flown by Endeavor | 4h 16m | 89% | 74% |
| AmericanDetails → | PHL 10:30 → CLT 12:23AA 1180 | 2h 01m Charlotte | CLT 14:24 → TYS 15:42AA 5831 · flown by Piedmont | 5h 12m | 90% | 73% |
| DeltaDetails → | PHL 12:02 → ATL 14:05DL 2270 | 3h 40m Atlanta | ATL 17:45 → TYS 18:44DL 3042 | 6h 43m | 99% | 73% |
| Tight connection: often missed | ||||||
| DeltaDetails → | PHL 17:22 → DTW 19:09DL 1391 | 50m Detroit | DTW 19:59 → TYS 21:41DL 5138 · flown by Endeavor | 4h 19m | 62% | 41% |
| DeltaDetails → | PHL 17:12 → ATL 19:20DL 1692 | 1h 24m Atlanta | ATL 20:44 → TYS 21:49DL 5224 · flown by Endeavor | 4h 37m | 64% | 38% |
| AmericanDetails → | PHL 19:35 → CLT 21:38AA 1661 | 1h 00m Charlotte | CLT 22:38 → TYS 23:49AA 5511 · flown by PSA | 4h 15m | 71% | 28% |
Same layover, different day-part
How often the first flight arrives too late to connect (45 min minimum), for one-ticket layovers of 45–80 minutes.
Delays build through the day, so an afternoon first leg eats the layover. A short connection is fine early in the morning and a gamble later on.
Mixing airlines
| American AA 4338 PHL 09:32 → ATL Delta DL 1148 ATL 13:52 → TYS Connection details → |
1h 59m | 5h 17m | 99% | 79% |
| American AA 3041 PHL 17:35 → ATL Delta DL 2081 ATL 22:53 → TYS Connection details → |
2h 58m | 6h 19m | 92% | 75% |
| American AA 2093 PHL 07:00 → MCO Southwest WN 2116 MCO 12:00 → TYS Connection details → |
2h 16m | 6h 45m | 98% | 75% |
Rank all connections, any airlines →
Regional partners count as the airline that sells them: SkyWest flying Delta Connection is one Delta ticket.
About this data: US DOT on-time records, Aug 2025 – Jul 2026, all US airlines; regional flights count under the airline that sells them. Schedules (which flights and connections exist, and their times) are as of Jun 6 – Jul 31, 2026; seasonal flights outside that window aren’t ranked. Rebuilt monthly. JSON