F99881Frontier Airlines · DEN → SEA
live · 13m ago
Route confirmed Frontier Airlines

F99881 DenverDEN SeattleSEA

F99881 by Frontier Airlines flies from Denver (DEN) to Seattle (SEA).

Right nowNext departure today Operates daily
06:00

scheduled from DEN

The route today

live boards
DENDenverHigh riskDEN delay board →
SEASeattleHigh riskSEA delay board →
DEN→SEAevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Weather-conditioned outlook for this flight right now

Measured, 90-day sample
40%Chance of 15+ min delay
2.0%Chance of cancellation
+11 minTypical airport delay in this weather

Driven mainly by DEN (Denver), currently flying LIFR (low instrument). These figures come from both airports' records under conditions like today's, over the last 90 days.

Pro Flight Search tracking, 90 days · the weather × delay correlation study → · live weather risk by airport →

Tomorrow on this route

Forecast

Denver to Seattle with Frontier Airlines · Sun 1 Nov, local date

Outlook: about usual
Chance a departure leaves 60+ min late
8.8%1.0× usual

No cancellation outlook here: this airport's board does not publish cancellations reliably.

Forecast: WeatherTomorrow · incl. data from ECMWF (CC BY 4.0, modified) · Fewer than one departure a day on this route with this airline, so read it as a rough guide. · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.

When it flies

scheduled departures
061422
M
T
W
T
F
S
S

Each mark is a scheduled departure at its origin-local time. Today is highlighted.

Other Denver to Seattle flights today

same route · Frontier Airlines
F94545departs 07:15
F91175departs 13:07
F99421departs 23:30

If F99881 is cancelled, these are the other Frontier Airlines nonstop flights from Denver to Seattle on the same day, with scheduled departure times in DEN local time. Most flights that show a delay still operate. Rebooking usually helps only when that delay is very large. Every airline on this route →

How F99881 actually runs

Pro Flight Search has tracked every published board update for F99881 across the DEN and SEA boards: schedule changes, gate pushes and actual clocks. Combined risk score: 94.3/100. Based on airport operations, weather, and cached board history at DEN and SEA.

The verdict above is that record speaking, so it reflects how F99881 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Planning around F99881? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure

Cite this data

Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.

Suggested citation

Pro Flight Search: F99881 Denver to Seattle on-time performance, measured from the DEN and SEA airport boards.

Canonical URL
https://proflightsearch.com/flight/F99881
How we measure this →