| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Sep 29 | DEN | SEA | 23:31 | 00:53 |
En-Route
|
Track > |
Frontier Airlines Flight F99421 connects Denver, United States to Seattle, United States, taking off from Denver International Airport DEN and landing at Seattle Tacoma International Airport SEA.
How long is the F99421 flight from Denver to Seattle?
The average flight time from Denver to Seattle is 2 hours and 22 minutes. The flight distance is 1645 km / 1022 miles and the average flight speed is 695 km/h / 432 mph.
How many F99421 flights are operated per week?
1 flight per week. The flight F99421 is operated on Wednesday.
What is the On-Time Performance (OTP) of Frontier Airlines Flight F99421 Denver to Seattle?
The Airportia On-Time Performance Rating for Frontier Airlines Flight F99421 is 5/5 stars. This metric is calculated using data from the past 10 flights.
When was the latest F99421 flight?
The latest flight took off on Wednesday, September 30th, 2026 with the flight status being En-Route on 00:53.
How else can the flight F99421 be referenced as?
This Frontier Airlines flight can also be referenced as FFT9421, F9 9421, FFT 9421.
How often is flight F99421 delayed?
On average, 0% of all F99421 flights are delayed. The average delay is 0 minutes.
Can I get compensation for my delayed or cancelled F99421 flight or baggage issues?
If your F99421 flight was cancelled, delayed, or if you experienced baggage issues such as delayed, damaged, or lost bags, you may be entitled to compensation. Compensation amounts and eligibility depend on various regulations, including EC 261/2004, UK261, CA Montreal Convention, US GoodWill, BR-ANAC, SA-GACA and TK-SHY.
See our F99421 Flight Tracker above for more details.
Other flights departing from Denver DEN: F94753, F9777, UA1924, AA1292
Other flights arriving at Seattle SEA: DL903, AA3231, AS7096, 8C3337
All flights connecting Denver DEN to Seattle SEA.