F99881Frontier Airlines · DEN → SEA
live · 31m ago
Route confirmed Frontier Airlines

F99881 DenverDEN · 06:00 SeattleSEA

F99881 by Frontier Airlines flies from Denver (DEN) to Seattle (SEA) for the Tue, Sep 8 departure.

Right nowEn route to Seattle · off blocks 05:47 · 13 min early
En route

en route from DEN to SEA

En routeF99881 · position estimated
DENDenverSEASeattle
Estimated from the boards

Board estimate · gate and arrival times. Off blocks 05:47 · typical taxi-out at DEN ≈ 7.1 min.

Typical gate push−13 minmedian posted departure

The route today

live boards
DENDenverOn-time likelyDEN delay board →
SEASeattleOn-time likelySEA delay board →
DEN→SEAevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
40%Chance of 15+ min delay
1.6%Chance of cancellation
+9 minAvg hub delay right now

Conditions at DEN and SEA are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. For this route and airline, 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 →

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 10:10

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 posting a delay still operate — rebooking usually only beats a very large posted delay. 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. Early read — pattern not clear yet. Only 2 completed legs so far: departed -13 min. Not enough to call it.

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.

Technical record

How this operation is measured

board clocksaircraft

Board log

scheduled → actual, per operation
09-08DEN 06:00 05:47 (−13)SEA
08-25DEN 06:00 05:47 (−13)SEA

Aircraft

Recent tails: N681FR.

Board clocks recorded as DEN and SEA published them.

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 →