Compare like with like
Rank only airlines that actually served the selected route and met the visible sample rule.
Official BTS records · route-level context
Know the route before you book.
Compare how US domestic flights have performed by route, airline, month, and departure time. See the ordinary delays—and the bad days averages hide.
Route brief · example
LAXSFO
Compare
Airlines & time bands
Understand
Typical & tail delay
Latest complete month
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Processed scheduled flights
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Source partitions
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Why route context matters
Airline averages don’t fly your route.
Reliability changes with season, airport congestion, operating carrier, and scheduled departure time. Arrival Atlas keeps those conditions visible—and shows how many flights support every comparison.
See the tail, not just typical
Median, 75th, and 90th-percentile delay reveal the spread hidden by a single average.
Audit every number
Definitions, coverage, source lineage, and observation counts stay one click away.
Historical, not predictive
This is historical descriptive analysis. Weather and operations can make a future trip differ.
Start with a busy route
Routes with enough history to compare
Use the history carefully
Use history as context, not a forecast.
Published schedules, storms, air traffic constraints, aircraft rotations, and reporting coverage change. Use the history to compare conditions, then pair it with current advisories and your own risk tolerance.
Arrival Atlas can tell you
- • What happened on comparable flights in the covered history
- • How many records support a displayed rate or percentile
- • Whether severe delays and cancellations varied by time band
It cannot tell you
Whether a specific future flight will be delayed or cancelled.