The nonstop is quickest: Southwest BWI → TYS (1h 45m), on time 3 times in 5. American via Charlotte (4h 23m) is more reliable, 84%, but takes 2h 38m longer.
Nonstops (seasonal or thin)
Nonstop details →| Southwest | BWI | TYS | 1h 45m | 63% | 2.7% | 149 | Flying now |
Best connections, any airlines
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 → | BWI 06:15 → CLT 07:53AA 2670 | 3h 18m Charlotte | CLT 11:11 → TYS 12:34AA 5953 · flown by Piedmont | 6h 19m | 99% | 88% |
| Southwest + Deltatwo ticketsDetails → | BWI 06:20 → ATL 08:15WN 4689 | 1h 50m Atlanta | ATL 10:05 → TYS 11:09DL 1743 | 4h 49m | 97% | 87% |
| AmericanDetails → | BWI 05:02 → CLT 06:26AA 1708 | 2h 49m Charlotte | CLT 09:15 → TYS 10:38AA 5950 · flown by Piedmont | 5h 36m | 99% | 86% |
| DeltaDetails → | BWI 05:40 → ATL 07:31DL 2950 | 1h 08m Atlanta | ATL 08:39 → TYS 09:38DL 1290 | 3h 58m | 95% | 82% |
| AmericanDetails → | BWI 10:06 → CLT 11:39AA 1635 | 2h 45m Charlotte | CLT 14:24 → TYS 15:42AA 5831 · flown by Piedmont | 5h 36m | 100% | 82% |
| SouthwestDetails → | BWI 06:25 → BNA 07:20WN 874 | 2h 52m Nashville | BNA 10:12 → TYS 12:02WN 4206 | 5h 37m | 100% | 80% |
| DeltaDetails → | BWI 17:00 → ATL 19:08DL 2799 | 3h 45m Atlanta | ATL 22:53 → TYS 23:52DL 2081 | 6h 54m | 98% | 80% |
| Southwest + Deltatwo ticketsDetails → | BWI 08:20 → ATL 10:20WN 3931 | 3h 32m Atlanta | ATL 13:52 → TYS 14:49DL 1148 | 6h 29m | 98% | 78% |
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
The table above includes two-ticket connections (marked “two tickets”), held to the 90-minute minimum. One ticket only →
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