Schedule: a typical Tuesday (the flights of Jul 28, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
FRONTIER · FLIGHT F9 3454SCHEDULED · TYPICAL ODDS
F9 3454 · ATL → LGA
departs 3:30 PM ET · arrives 5:51 PM ET
Forecast issued Wed 12:00 AM ET · 160h before departure
Typical odds
Too early for a weather forecast — these are typical odds for this flight on a Tuesday in October, from the weather this date has had in past years (the range shows how much they varied). They’ll switch to forecast-based odds about 3 days before departure.
Odds over time
Arrive at LGA more than 15 minutes late?
37%chance · ±3 pts– · 24h
HOW SURE WE ARELow. This is mostly a starting point from history; weather forecasts haven't kicked in yet.
How late will it get to LGA?
On time or early
61%
15–30 min late
12%
30 min–1 hour late
6%
1–2 hours late
11%
Over 2 hours late
6%
Cancelled
3%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.