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Route Reliability

Baltimore → Atlanta

BWI–ATL · 577 miles · Baltimore/Washington International Thurgood Marshall Airport to Hartsfield–Jackson Atlanta International Airport

79
Usually Fine
WanderNerd Reliability Score
80%
Arrive within 15 minutes
7 min
Average arrival delay
2.0%
Cancelled
5,432
Flights in the data

Data through May 2026.

Who flies it best

Ranked by on-time arrivals. Historical results, not predictions.

  1. 1.Delta Air Lines85%2,839 flights
  2. 2.Spirit Airlines84%165 flights
  3. 3.Southwest Airlines78%1,580 flights
  4. 4.Frontier Airlines68%848 flights

What the data says

Morning flights do better here.

BWI–ATL flights departing between 6–9 AM arrived on time 88% of the time, versus 53% between 9 PM–12 AM.

Sunday scaries are real for this one.

BWI–ATL flights arrived on time 86% of the time on Wednesdays. On Sundays: 75%.

Delta Air Lines has a clear lead on this route.

Delta Air Lines arrived on time 85% of the time on this route; Frontier Airlines managed 68%.

Slipping a little lately.

BWI–ATL flights arrived on time 80% of the time over the last three months in the data, compared with 84% in the three months before that.

Best historical flights

Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.

Top flights by on-time rate

More flights on this route

The breakdown

On-time by weekday
  • Mon77%(799 flights)
  • Tue85%(733 flights)
  • Wed86%(734 flights)
  • Thu81%(798 flights)
  • Fri80%(806 flights)
  • Sat77%(625 flights)
  • Sun75%(819 flights)
On-time by departure window
  • 3–6 AM83%(196 flights)
  • 6–9 AM88%(1572 flights)
  • 9 AM–12 PM87%(897 flights)
  • 12–3 PM82%(810 flights)
  • 3–6 PM72%(900 flights)
  • 6–9 PM67%(856 flights)
  • 9 PM–12 AM53%(83 flights)
On-time trend by month
79%
May

Jun 65% → May 79% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202565%476
July 202567%491
August 202580%483
September 202589%466
October 202586%501
November 202585%460
December 202578%422
January 202684%355
February 202689%340
March 202677%402
April 202685%437
May 202679%481

Same trip, other airports

Keep nerding

Based on 5,432 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.