71% of TPA → SEA flights arrived on time in June-August 2026 (261 flights). The most reliable was AS 640, on time 81% of the time on this route. Morning flights did best (79%), evening flights worst (54%). Tampa (TPA): no delay reported. Seattle (SEA): no delay reported.
Best time of day to fly TPA → SEA
| Morning (before noon) | |
| Evening (after 5 PM) |
Flights TPA → SEA, most reliable first
| Flight | Departs | On time on this route | Cancelled |
|---|---|---|---|
| AS 640 Alaska Airlines | 7:08 AM | 0% | |
| DL 1090 Delta | 7:16 AM | 0% | |
| AS 326 Alaska Airlines | 6:54 PM | 1% |
TPA conditions · SEA conditions · SEA → TPA · Cancellations
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From BTS on-time data, June-August 2026; flights with 20+ trips on this route. On-time rates cover each flight number's whole day, which can include other legs. Departure times are local.