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Route Reliability

Portland → Boston

PDX–BOS · 2,537 miles · Portland International Airport to Boston Logan International Airport

84
Pretty Reliable
WanderNerd Reliability Score
80%
Arrive within 15 minutes
4 min
Average arrival delay
0.8%
Cancelled
638
Flights in the data

Data through May 2026.

Who flies it best

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

  1. 1.Alaska Airlines83%533 flights
  2. 2.JetBlue Airways64%105 flights

What the data says

Morning-you made the right choice.

PDX–BOS flights departing between 6–9 AM arrived on time 84% of the time, versus 75% between 9 PM–12 AM.

Skip Tuesday if you can.

PDX–BOS flights arrived on time 83% of the time on Sundays. On Tuesdays: 74%.

Alaska Airlines has a clear lead on this route.

Alaska Airlines arrived on time 83% of the time on this route; JetBlue Airways managed 64%.

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
  • Mon82%(96 flights)
  • Tue74%(77 flights)
  • Wed79%(91 flights)
  • Thu78%(97 flights)
  • Fri79%(95 flights)
  • Sat82%(73 flights)
  • Sun83%(102 flights)
On-time by departure window
  • 6–9 AM84%(345 flights)
  • 12–3 PM81%(41 flights)
  • 9 PM–12 AM75%(245 flights)
On-time trend by month
84%
May

Jun 81% → May 84% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202581%90
July 202570%91
August 202578%88
September 202574%49
October 202570%47
November 202589%37
December 202580%39
January 202682%28
February 2026100%21
March 202692%36
April 202684%44
May 202684%61

Keep nerding

Based on 638 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.