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Route Reliability

Chicago → Boston

ORD–BOS · 867 miles · Chicago O'Hare International Airport to Boston Logan International Airport

61
A Little Dicey
WanderNerd Reliability Score
69%
Arrive within 15 minutes
18 min
Average arrival delay
2.6%
Cancelled
7,561
Flights in the data

Data through May 2026.

Who flies it best

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

  1. 1.JetBlue Airways74%537 flights
  2. 2.Delta Air Lines70%1,315 flights
  3. 3.United Airlines69%2,633 flights
  4. 4.American Airlines66%3,076 flights

What the data says

Morning flights do better here.

ORD–BOS flights departing between 6–9 AM arrived on time 85% of the time, versus 52% between 3–6 PM.

Monday is the weak spot.

ORD–BOS flights arrived on time 76% of the time on Saturdays. On Mondays: 65%.

JetBlue Airways runs this route best.

JetBlue Airways arrived on time 74% of the time on this route; American Airlines managed 66%.

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
  • Mon65%(1092 flights)
  • Tue72%(1002 flights)
  • Wed70%(1019 flights)
  • Thu67%(1105 flights)
  • Fri65%(1121 flights)
  • Sat76%(889 flights)
  • Sun66%(1119 flights)
On-time by departure window
  • 12–3 AM—(3 flights)
  • 6–9 AM85%(1929 flights)
  • 9 AM–12 PM73%(1610 flights)
  • 12–3 PM61%(1063 flights)
  • 3–6 PM52%(1085 flights)
  • 6–9 PM60%(1465 flights)
  • 9 PM–12 AM67%(192 flights)
On-time trend by month
77%
May

Jun 70% → May 77% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202570%666
July 202565%654
August 202574%669
September 202557%653
October 202559%688
November 202574%606
December 202567%548
January 202671%468
February 202672%469
March 202667%567
April 202670%627
May 202677%732

Same trip, other airports

Keep nerding

Based on 7,561 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.