BTS DATA COMPLETE THROUGH JUNE 2026HISTORICAL ODDS · NOT LIVE FLIGHT STATUS
DelayOddsKnow the route before you book
MSYBOS

New Orleans, LA (MSY) to Boston, MA (BOS) flight delay odds

Historically, 61.5% of scheduled reportable flights on this direction arrived on time in July 2025–June 2026. The sample includes 853 flights.

HISTORICAL ROUTE SIGNALVariable
61.5%arrived on time
27.3%30+ min late
1.9%cancelled
853scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late17.2%all scheduled flights
120+ minutes late6.9%all scheduled flights
Diverted0.0%did not reach as scheduled
Average arrival+24.6 mincompleted flights

When is this route most reliable?

The same route can behave differently through the day. These are scheduled departure windows, not actual departure times. Small time windows with fewer than 40 flights are withheld.

Departure windowFlightsOn time30+ minCancelled
Early morning5576.4%12.7%3.6%
Late morning8075.0%21.2%1.2%
Afternoon60859.7%28.5%1.6%
Evening11054.5%32.7%2.7%

Weekday comparison

Day-of-week results use at least 30 scheduled flights per row. Look for broad patterns, not tiny percentage differences.

DayFlightsOn time30+ minCancelled
Monday12854.7%35.2%2.3%
Tuesday11066.4%20.0%4.5%
Wednesday11065.5%25.5%0.9%
Thursday12854.7%32.0%0.0%
Friday13060.0%30.8%0.0%
Saturday11575.7%15.7%1.7%
Sunday13256.8%29.5%3.8%

Airline comparison

Marketing-carrier results make codeshare flights easier to compare as travelers buy them. Dedicated route-airline reports require at least 160 flights.

AirlineFlightsOn time30+ minCancelled
JetBlue Airways47160.9%30.4%1.7%
Delta Air Lines37262.4%23.4%2.2%
Spirit Airlines850.0%37.5%0.0%
American Airlines2100.0%0.0%0.0%

Monthly trend

Month-by-month results show whether a twelve-month average hides an unusual period.

MonthFlightsOn time30+ minCancelled
July 20256250.0%33.9%0.0%
August 20255461.1%29.6%1.9%
September 20256030.0%50.0%1.7%
October 20259547.4%45.3%0.0%
November 20258071.2%15.0%0.0%
December 20257463.5%27.0%2.7%
January 20266473.4%15.6%6.2%
February 20267057.1%25.7%10.0%
March 20267972.2%22.8%1.3%
April 20267768.8%20.8%0.0%
May 20267873.1%16.7%0.0%
June 20266066.7%26.7%0.0%

What drove reported delay minutes?

BTS cause minutes are reported for qualifying delayed flights. These shares describe recorded delay minutes—not the chance that a particular cause will affect your next flight.

Airline18.1%
Late aircraft40.3%
National airspace40.4%
Weather1.0%
Security0.2%
This is historical evidence, not a forecast.

Weather, schedules and operations change. For a trip you have already booked, use the airline or airport for live status.