Aviation Data
EN
EnglishTiếng Việt

4,072 km · Domestic

Boston Logan (BOS) – Portland (PDX)

In July 2026, 216 flights operated between Boston Logan and Portland (both directions), and 74.1% left on time, according to the US BTS.

Official · July 2026 according to the US BTS only airlines required to report on-time data to the US DOT

Flights per month

Only complete months are shown. A month appears once the source has published every day of it.

The most recent periods19 periods
PeriodFlights operated 2025Flights operated 2026Change vs last year
January4757▲ 21.3%
February3342▲ 27.3%
March5072▲ 44.0%
April6290▲ 45.2%
May158121▼ 23.4%
June180202▲ 12.2%
July182216▲ 18.7%
August175––
September99––
October93–in progress
November76––
December77––
Year to date (Jan–Jul)712800▲ 12.4%

On-time departures by month

Departures within 15 minutes of schedule.

The most recent periods19 periods
PeriodOn-time departures 2025On-time departures 2026Change vs last year
January95.7%80.7%▼ 15.7%
February75.8%97.6%▲ 28.8%
March82.0%87.5%▲ 6.7%
April85.5%83.3%▼ 2.6%
May76.6%84.3%▲ 10.1%
June81.1%82.7%▲ 2.0%
July68.7%74.1%▲ 7.9%
August86.9%––
September80.8%––
October76.3%–in progress
November85.5%––
December87.0%––
Year-to-date average (Jan–Jul)80.8%84.3%▲ 4.4%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January04–
February32▼ 33.3%
March00–
April00–
May10▼ 100.0%
June00–
July212▲ 500.0%
August0––
September0––
October3–in progress
November0––
December1––
Year to date (Jan–Jul)618▲ 200.0%

Airlines on this route

  1. Alaska Airlines 78.7%
  2. JetBlue Airways 21.3%

Oct 1, 2024 – Jul 31, 2026

By direction

BOS → PDX

Scheduled flights
1,153
Flights operated
1,135
Cancelled
18 · 1.6%
On-time departures
81.3%

PDX → BOS

Scheduled flights
1,155
Flights operated
1,144
Cancelled
11 · 1.0%
On-time departures
81.5%

BOS → PDX and PDX → BOS counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
Alaska Airlines AS 1,816 78.7% 85.1% 16
JetBlue Airways B6 492 21.3% 67.4% 13

Shares are of scheduled flights in the period shown. Codeshare flights are counted once, under the operating airline.

Flight timing & delays

Historical departures, grouped by the scheduled local time at the departure airport. These are recorded outcomes, not a forecast for your flight.

Times are local to the departure airport of each flight; both directions are combined.

US domestic sectors recorded by BTS

Source: the US BTS · Oct 12, 2024 → Jul 31, 2026

Lowest average delay06:00–07:00-3.6min · 269 recorded · 268 measured
Gap to highest-delay hour15.6min06:00 ↔ 17:00
Recorded flights2,308BOS–PDX

Departure hour

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
00:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 01:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 02:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 03:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 04:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 05:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 06:00 · 96.3% · 269 recorded · 268 measured · Source: the US BTS 07:00 · 87.7% · 533 recorded · 529 measured · Source: the US BTS 08:00 · Fewer than 200 measured departures · 47 recorded · 47 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 75 recorded · 73 measured · Source: the US BTS 10:00 · Fewer than 200 measured departures · 126 recorded · 126 measured · Source: the US BTS 11:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 12:00 · Fewer than 200 measured departures · 19 recorded · 19 measured · Source: the US BTS 13:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 115 recorded · 114 measured · Source: the US BTS 15:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 16:00 · Fewer than 200 measured departures · 120 recorded · 116 measured · Source: the US BTS 17:00 · 77.5% · 296 recorded · 293 measured · Source: the US BTS 18:00 · Fewer than 200 measured departures · 142 recorded · 140 measured · Source: the US BTS 19:00 · Fewer than 200 measured departures · 132 recorded · 127 measured · Source: the US BTS 20:00 · Fewer than 200 measured departures · 28 recorded · 27 measured · Source: the US BTS 21:00 · 81.9% · 294 recorded · 293 measured · Source: the US BTS 22:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 23:00 · Fewer than 200 measured departures · 112 recorded · 107 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

Average departure delay Partial coverage: only airlines that report on-time data to the US DOT
00:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 01:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 02:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 03:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 04:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 05:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 06:00 · -3.6 min · 269 recorded · 268 measured · Source: the US BTS 07:00 · 4.7 min · 533 recorded · 529 measured · Source: the US BTS 08:00 · Fewer than 200 measured departures · 47 recorded · 47 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 75 recorded · 73 measured · Source: the US BTS 10:00 · Fewer than 200 measured departures · 126 recorded · 126 measured · Source: the US BTS 11:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 12:00 · Fewer than 200 measured departures · 19 recorded · 19 measured · Source: the US BTS 13:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 115 recorded · 114 measured · Source: the US BTS 15:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 16:00 · Fewer than 200 measured departures · 120 recorded · 116 measured · Source: the US BTS 17:00 · 12.0 min · 296 recorded · 293 measured · Source: the US BTS 18:00 · Fewer than 200 measured departures · 142 recorded · 140 measured · Source: the US BTS 19:00 · Fewer than 200 measured departures · 132 recorded · 127 measured · Source: the US BTS 20:00 · Fewer than 200 measured departures · 28 recorded · 27 measured · Source: the US BTS 21:00 · 6.4 min · 294 recorded · 293 measured · Source: the US BTS 22:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 23:00 · Fewer than 200 measured departures · 112 recorded · 107 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

Recorded flights Partial coverage: only airlines that report on-time data to the US DOT
00:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 01:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 02:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 03:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 04:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 05:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 06:00 · 269 · 269 recorded · 268 measured · Source: the US BTS 07:00 · 533 · 533 recorded · 529 measured · Source: the US BTS 08:00 · 47 · 47 recorded · 47 measured · Source: the US BTS 09:00 · 75 · 75 recorded · 73 measured · Source: the US BTS 10:00 · 126 · 126 recorded · 126 measured · Source: the US BTS 11:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 12:00 · 19 · 19 recorded · 19 measured · Source: the US BTS 13:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 14:00 · 115 · 115 recorded · 114 measured · Source: the US BTS 15:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 16:00 · 120 · 120 recorded · 116 measured · Source: the US BTS 17:00 · 296 · 296 recorded · 293 measured · Source: the US BTS 18:00 · 142 · 142 recorded · 140 measured · Source: the US BTS 19:00 · 132 · 132 recorded · 127 measured · Source: the US BTS 20:00 · 28 · 28 recorded · 27 measured · Source: the US BTS 21:00 · 294 · 294 recorded · 293 measured · Source: the US BTS 22:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 23:00 · 112 · 112 recorded · 107 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

View the figures
Departure hourOn-time departuresAverage departure delayWith departure timeRecorded flights
00:00No observations———
01:00No observations———
02:00No observations———
03:00No observations———
04:00No observations———
05:00No observations———
06:0096.3%-3.6 min268269
07:0087.7%4.7 min529533
08:00Fewer than 200 measured departures—4747
09:00Fewer than 200 measured departures—7375
10:00Fewer than 200 measured departures—126126
11:00No observations———
12:00Fewer than 200 measured departures—1919
13:00No observations———
14:00Fewer than 200 measured departures—114115
15:00No observations———
16:00Fewer than 200 measured departures—116120
17:0077.5%12.0 min293296
18:00Fewer than 200 measured departures—140142
19:00Fewer than 200 measured departures—127132
20:00Fewer than 200 measured departures—2728
21:0081.9%6.4 min293294
22:00No observations———
23:00Fewer than 200 measured departures—107112

Day of week

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
Monday · 81.6% · 359 recorded · 348 measured · Source: the US BTS Tuesday · 83.7% · 295 recorded · 294 measured · Source: the US BTS Wednesday · 84.8% · 305 recorded · 302 measured · Source: the US BTS Thursday · 80.6% · 350 recorded · 346 measured · Source: the US BTS Friday · 78.0% · 364 recorded · 359 measured · Source: the US BTS Saturday · 78.9% · 292 recorded · 289 measured · Source: the US BTS Sunday · 82.7% · 343 recorded · 341 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

Average departure delay Partial coverage: only airlines that report on-time data to the US DOT
Monday · 11.3 min · 359 recorded · 348 measured · Source: the US BTS Tuesday · 11.5 min · 295 recorded · 294 measured · Source: the US BTS Wednesday · 5.7 min · 305 recorded · 302 measured · Source: the US BTS Thursday · 12.7 min · 350 recorded · 346 measured · Source: the US BTS Friday · 9.8 min · 364 recorded · 359 measured · Source: the US BTS Saturday · 10.5 min · 292 recorded · 289 measured · Source: the US BTS Sunday · 8.4 min · 343 recorded · 341 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

Recorded flights Partial coverage: only airlines that report on-time data to the US DOT
Monday · 359 · 359 recorded · 348 measured · Source: the US BTS Tuesday · 295 · 295 recorded · 294 measured · Source: the US BTS Wednesday · 305 · 305 recorded · 302 measured · Source: the US BTS Thursday · 350 · 350 recorded · 346 measured · Source: the US BTS Friday · 364 · 364 recorded · 359 measured · Source: the US BTS Saturday · 292 · 292 recorded · 289 measured · Source: the US BTS Sunday · 343 · 343 recorded · 341 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
Monday81.6%11.3 min348359
Tuesday83.7%11.5 min294295
Wednesday84.8%5.7 min302305
Thursday80.6%12.7 min346350
Friday78.0%9.8 min359364
Saturday78.9%10.5 min289292
Sunday82.7%8.4 min341343

Month of year

Months combine the same calendar month across the years shown; this is a seasonal pattern, not a monthly time series.

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
Jan · Fewer than 200 measured departures · 108 recorded · 104 measured · Source: the US BTS Feb · Fewer than 200 measured departures · 80 recorded · 75 measured · Source: the US BTS Mar · Fewer than 200 measured departures · 122 recorded · 122 measured · Source: the US BTS Apr · Fewer than 200 measured departures · 152 recorded · 152 measured · Source: the US BTS May · 79.9% · 280 recorded · 279 measured · Source: the US BTS Jun · 81.9% · 382 recorded · 382 measured · Source: the US BTS Jul · 71.6% · 412 recorded · 398 measured · Source: the US BTS Aug · Fewer than 200 measured departures · 175 recorded · 175 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 99 recorded · 99 measured · Source: the US BTS Oct · Fewer than 200 measured departures · 184 recorded · 181 measured · Source: the US BTS Nov · Fewer than 200 measured departures · 148 recorded · 148 measured · Source: the US BTS Dec · Fewer than 200 measured departures · 166 recorded · 164 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

Average departure delay Partial coverage: only airlines that report on-time data to the US DOT
Jan · Fewer than 200 measured departures · 108 recorded · 104 measured · Source: the US BTS Feb · Fewer than 200 measured departures · 80 recorded · 75 measured · Source: the US BTS Mar · Fewer than 200 measured departures · 122 recorded · 122 measured · Source: the US BTS Apr · Fewer than 200 measured departures · 152 recorded · 152 measured · Source: the US BTS May · 6.6 min · 280 recorded · 279 measured · Source: the US BTS Jun · 7.8 min · 382 recorded · 382 measured · Source: the US BTS Jul · 26.9 min · 412 recorded · 398 measured · Source: the US BTS Aug · Fewer than 200 measured departures · 175 recorded · 175 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 99 recorded · 99 measured · Source: the US BTS Oct · Fewer than 200 measured departures · 184 recorded · 181 measured · Source: the US BTS Nov · Fewer than 200 measured departures · 148 recorded · 148 measured · Source: the US BTS Dec · Fewer than 200 measured departures · 166 recorded · 164 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

Recorded flights Partial coverage: only airlines that report on-time data to the US DOT
Jan · 108 · 108 recorded · 104 measured · Source: the US BTS Feb · 80 · 80 recorded · 75 measured · Source: the US BTS Mar · 122 · 122 recorded · 122 measured · Source: the US BTS Apr · 152 · 152 recorded · 152 measured · Source: the US BTS May · 280 · 280 recorded · 279 measured · Source: the US BTS Jun · 382 · 382 recorded · 382 measured · Source: the US BTS Jul · 412 · 412 recorded · 398 measured · Source: the US BTS Aug · 175 · 175 recorded · 175 measured · Source: the US BTS Sep · 99 · 99 recorded · 99 measured · Source: the US BTS Oct · 184 · 184 recorded · 181 measured · Source: the US BTS Nov · 148 · 148 recorded · 148 measured · Source: the US BTS Dec · 166 · 166 recorded · 164 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

View the figures
Month of yearOn-time departuresAverage departure delayWith departure timeRecorded flights
JanFewer than 200 measured departures—104108
FebFewer than 200 measured departures—7580
MarFewer than 200 measured departures—122122
AprFewer than 200 measured departures—152152
May79.9%6.6 min279280
Jun81.9%7.8 min382382
Jul71.6%26.9 min398412
AugFewer than 200 measured departures—175175
SepFewer than 200 measured departures—9999
OctFewer than 200 measured departures—181184
NovFewer than 200 measured departures—148148
DecFewer than 200 measured departures—164166

Delay and on-time rates need at least 200 measured departures per bucket. Smaller samples remain visible in the flight-count chart. An empty slot means no observations, not zero flights.

Recorded outcomes

  • On time 80.4% 1,855
  • Delayed >15 min 18.4% 424
  • Cancelled 1.3% 29
  • Missing departure time 0.0% 0

All recorded flights with a known scheduled local time, counted once. Missing actual times are shown separately.

On time means departing no more than 15 minutes after schedule. Cancelled flights and flights missing departure times are excluded from the on-time rate and average delay.

Flight numbers on this route

9
9 of 9
Flight numbersBy direction DeparturesOn time
AS358 PDX → BOS 612 87.2%
AS1319 BOS → PDX 388 81.9%
AS311 BOS → PDX 338 88.6%
AS436 PDX → BOS 233 81.0%
B6695 BOS → PDX 176 61.4%
B6696 PDX → BOS 155 62.7%
B66396 PDX → BOS 72 70.4%
AS336 BOS → PDX 67 98.5%
B66395 BOS → PDX 51 81.6%

Flight numbers are the codes sold on tickets. On shared flights one aircraft can carry several of them. Only numbers with at least 30 flights have a page.

Monthly figures
PeriodFlights operated Change vs last yearCancelled On-time departures
July 2026 216 +18.7% 12 74.1%
June 2026 202 +12.2% 0 82.7%
May 2026 121 −23.4% 0 84.3%
April 2026 90 +45.2% 0 83.3%
March 2026 72 +44.0% 0 87.5%
February 2026 42 +27.3% 2 97.6%
January 2026 57 +21.3% 4 80.7%
December 2025 77 −11.5% 1 87.0%
November 2025 76 +5.6% 0 85.5%
October 2025 93 +5.7% 3 76.3%
September 2025 99 0 80.8%
August 2025 175 0 86.9%
July 2025 182 2 68.7%
June 2025 180 0 81.1%
May 2025 158 1 76.6%
April 2025 62 0 85.5%
March 2025 50 0 82.0%
February 2025 33 3 75.8%
January 2025 47 0 95.7%
December 2024 87 1 78.2%
November 2024 72 0 83.3%
October 2024 88 0 93.2%

How to read this chart

Loading the guide…