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Route Reliability

New York → Portland

LGA–PWM · 269 miles · LaGuardia Airport to Portland International Jetport

67
Usually Fine
WanderNerd Reliability Score
77%
Arrive within 15 minutes
6 min
Average arrival delay
4.6%
Cancelled
1,616
Flights in the data

Data through May 2026.

Who flies it best

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

  1. 1.American Airlines79%410 flights
  2. 2.Delta Air Lines77%1,206 flights

What the data says

Morning-you made the right choice.

LGA–PWM flights departing between 6–9 AM arrived on time 93% of the time, versus 68% between 9 PM–12 AM.

Sunday scaries are real for this one.

LGA–PWM flights arrived on time 82% of the time on Saturdays. On Sundays: 74%.

Not much between American Airlines and Delta Air Lines.

On this route they all land within 77% to 79% on time. Pick on schedule and price.

Keep a backup plan handy.

This route was cancelled 4.6% of the time. Typical for U.S. flights is around 1–2%.

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
  • Mon76%(225 flights)
  • Tue76%(231 flights)
  • Wed78%(232 flights)
  • Thu77%(221 flights)
  • Fri78%(230 flights)
  • Sat82%(179 flights)
  • Sun74%(223 flights)
On-time by departure window
  • 6–9 AM93%(73 flights)
  • 9 AM–12 PM82%(625 flights)
  • 12–3 PM79%(211 flights)
  • 3–6 PM74%(196 flights)
  • 6–9 PM70%(148 flights)
  • 9 PM–12 AM68%(288 flights)
On-time trend by month
84%
May

Jun 69% → May 84% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202569%169
July 202572%162
August 202588%178
September 202587%170
October 202568%174
November 202571%83
December 202572%72
January 202685%78
February 202682%74
March 202672%76
April 202676%133
May 202684%172

Same trip, other airports

Keep nerding

Based on 1,616 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.