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1,521 km · Domestic

Hartsfield Jackson Atlanta (ATL) – Boston Logan (BOS)

In July 2026, 905 flights operated between Hartsfield Jackson Atlanta and Boston Logan (both directions), and 63.5% 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
January727637▼ 12.4%
February674611▼ 9.3%
March844791▼ 6.3%
April919885▼ 3.7%
May920918▼ 0.2%
June863921▲ 6.7%
July837905▲ 8.1%
August800––
September798––
October844–in progress
November819––
December811––
Year to date (Jan–Jul)5,7845,668▼ 2.0%

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
January76.8%75.0%▼ 2.3%
February76.4%75.8%▼ 0.8%
March81.2%76.4%▼ 5.9%
April77.6%76.7%▼ 1.2%
May72.3%83.0%▲ 14.8%
June71.0%80.3%▲ 13.1%
July69.4%63.5%▼ 8.5%
August76.9%––
September72.7%––
October73.6%–in progress
November80.3%––
December69.3%––
Year-to-date average (Jan–Jul)75.0%75.8%▲ 1.1%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January3350▲ 51.5%
February1143▲ 290.9%
March316▲ 433.3%
April84▼ 50.0%
May18▲ 700.0%
June1011▲ 10.0%
July1329▲ 123.1%
August6––
September2––
October6–in progress
November13––
December22––
Year to date (Jan–Jul)79161▲ 103.8%

Airlines on this route

  1. Delta Air Lines 71.6%
  2. JetBlue Airways 17.5%
  3. Frontier Airlines 6.9%
  4. Spirit Airlines 4.0%

Oct 1, 2024 – Jul 31, 2026

By direction

ATL → BOS

Scheduled flights
9,148
Flights operated
8,996
Cancelled
152 · 1.7%
On-time departures
73.3%

BOS → ATL

Scheduled flights
9,145
Flights operated
8,989
Cancelled
156 · 1.7%
On-time departures
78.4%

ATL → BOS and BOS → ATL counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
Delta Air Lines DL 13,091 71.6% 77.3% 185
JetBlue Airways B6 3,198 17.5% 72.0% 73
Frontier Airlines F9 1,264 6.9% 70.7% 42
Spirit Airlines NK 740 4.0% 75.4% 8

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 delay05:00–06:003.6min · 840 recorded · 818 measured
Gap to highest-delay hour29.6min05:00 ↔ 21:00
Recorded flights18,293ATL–BOS

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 · 91.0% · 840 recorded · 818 measured · Source: the US BTS 06:00 · 87.2% · 1,265 recorded · 1,236 measured · Source: the US BTS 07:00 · 88.3% · 1,037 recorded · 1,019 measured · Source: the US BTS 08:00 · 87.8% · 1,427 recorded · 1,404 measured · Source: the US BTS 09:00 · 86.3% · 1,163 recorded · 1,145 measured · Source: the US BTS 10:00 · 83.7% · 1,053 recorded · 1,044 measured · Source: the US BTS 11:00 · 79.8% · 1,052 recorded · 1,030 measured · Source: the US BTS 12:00 · 75.7% · 1,442 recorded · 1,429 measured · Source: the US BTS 13:00 · 76.2% · 1,090 recorded · 1,081 measured · Source: the US BTS 14:00 · 71.3% · 779 recorded · 771 measured · Source: the US BTS 15:00 · 72.4% · 1,215 recorded · 1,200 measured · Source: the US BTS 16:00 · 62.4% · 859 recorded · 846 measured · Source: the US BTS 17:00 · 64.2% · 921 recorded · 906 measured · Source: the US BTS 18:00 · 64.5% · 1,226 recorded · 1,207 measured · Source: the US BTS 19:00 · 58.8% · 757 recorded · 731 measured · Source: the US BTS 20:00 · 62.5% · 940 recorded · 923 measured · Source: the US BTS 21:00 · 60.3% · 292 recorded · 287 measured · Source: the US BTS 22:00 · 67.3% · 934 recorded · 907 measured · Source: the US BTS 23:00 · Fewer than 200 measured departures · 1 recorded · 1 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 · 3.6 min · 840 recorded · 818 measured · Source: the US BTS 06:00 · 10.2 min · 1,265 recorded · 1,236 measured · Source: the US BTS 07:00 · 5.1 min · 1,037 recorded · 1,019 measured · Source: the US BTS 08:00 · 6.4 min · 1,427 recorded · 1,404 measured · Source: the US BTS 09:00 · 7.7 min · 1,163 recorded · 1,145 measured · Source: the US BTS 10:00 · 7.7 min · 1,053 recorded · 1,044 measured · Source: the US BTS 11:00 · 13.2 min · 1,052 recorded · 1,030 measured · Source: the US BTS 12:00 · 13.9 min · 1,442 recorded · 1,429 measured · Source: the US BTS 13:00 · 13.3 min · 1,090 recorded · 1,081 measured · Source: the US BTS 14:00 · 16.8 min · 779 recorded · 771 measured · Source: the US BTS 15:00 · 18.6 min · 1,215 recorded · 1,200 measured · Source: the US BTS 16:00 · 25.7 min · 859 recorded · 846 measured · Source: the US BTS 17:00 · 24.0 min · 921 recorded · 906 measured · Source: the US BTS 18:00 · 23.5 min · 1,226 recorded · 1,207 measured · Source: the US BTS 19:00 · 30.5 min · 757 recorded · 731 measured · Source: the US BTS 20:00 · 26.0 min · 940 recorded · 923 measured · Source: the US BTS 21:00 · 33.1 min · 292 recorded · 287 measured · Source: the US BTS 22:00 · 22.6 min · 934 recorded · 907 measured · Source: the US BTS 23:00 · Fewer than 200 measured departures · 1 recorded · 1 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 · 840 · 840 recorded · 818 measured · Source: the US BTS 06:00 · 1,265 · 1,265 recorded · 1,236 measured · Source: the US BTS 07:00 · 1,037 · 1,037 recorded · 1,019 measured · Source: the US BTS 08:00 · 1,427 · 1,427 recorded · 1,404 measured · Source: the US BTS 09:00 · 1,163 · 1,163 recorded · 1,145 measured · Source: the US BTS 10:00 · 1,053 · 1,053 recorded · 1,044 measured · Source: the US BTS 11:00 · 1,052 · 1,052 recorded · 1,030 measured · Source: the US BTS 12:00 · 1,442 · 1,442 recorded · 1,429 measured · Source: the US BTS 13:00 · 1,090 · 1,090 recorded · 1,081 measured · Source: the US BTS 14:00 · 779 · 779 recorded · 771 measured · Source: the US BTS 15:00 · 1,215 · 1,215 recorded · 1,200 measured · Source: the US BTS 16:00 · 859 · 859 recorded · 846 measured · Source: the US BTS 17:00 · 921 · 921 recorded · 906 measured · Source: the US BTS 18:00 · 1,226 · 1,226 recorded · 1,207 measured · Source: the US BTS 19:00 · 757 · 757 recorded · 731 measured · Source: the US BTS 20:00 · 940 · 940 recorded · 923 measured · Source: the US BTS 21:00 · 292 · 292 recorded · 287 measured · Source: the US BTS 22:00 · 934 · 934 recorded · 907 measured · Source: the US BTS 23:00 · 1 · 1 recorded · 1 measured · Source: the US BTS

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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———
05:0091.0%3.6 min818840
06:0087.2%10.2 min1,2361,265
07:0088.3%5.1 min1,0191,037
08:0087.8%6.4 min1,4041,427
09:0086.3%7.7 min1,1451,163
10:0083.7%7.7 min1,0441,053
11:0079.8%13.2 min1,0301,052
12:0075.7%13.9 min1,4291,442
13:0076.2%13.3 min1,0811,090
14:0071.3%16.8 min771779
15:0072.4%18.6 min1,2001,215
16:0062.4%25.7 min846859
17:0064.2%24.0 min906921
18:0064.5%23.5 min1,2071,226
19:0058.8%30.5 min731757
20:0062.5%26.0 min923940
21:0060.3%33.1 min287292
22:0067.3%22.6 min907934
23:00Fewer than 200 measured departures—11

Day of week

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
Monday · 72.1% · 2,776 recorded · 2,703 measured · Source: the US BTS Tuesday · 79.5% · 2,505 recorded · 2,474 measured · Source: the US BTS Wednesday · 80.5% · 2,507 recorded · 2,501 measured · Source: the US BTS Thursday · 74.5% · 2,720 recorded · 2,699 measured · Source: the US BTS Friday · 75.7% · 2,758 recorded · 2,699 measured · Source: the US BTS Saturday · 77.3% · 2,318 recorded · 2,273 measured · Source: the US BTS Sunday · 72.2% · 2,709 recorded · 2,636 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 · 19.1 min · 2,776 recorded · 2,703 measured · Source: the US BTS Tuesday · 13.6 min · 2,505 recorded · 2,474 measured · Source: the US BTS Wednesday · 9.2 min · 2,507 recorded · 2,501 measured · Source: the US BTS Thursday · 15.1 min · 2,720 recorded · 2,699 measured · Source: the US BTS Friday · 16.1 min · 2,758 recorded · 2,699 measured · Source: the US BTS Saturday · 14.7 min · 2,318 recorded · 2,273 measured · Source: the US BTS Sunday · 19.7 min · 2,709 recorded · 2,636 measured · Source: the US BTS

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Recorded flights Partial coverage: only airlines that report on-time data to the US DOT
Monday · 2,776 · 2,776 recorded · 2,703 measured · Source: the US BTS Tuesday · 2,505 · 2,505 recorded · 2,474 measured · Source: the US BTS Wednesday · 2,507 · 2,507 recorded · 2,501 measured · Source: the US BTS Thursday · 2,720 · 2,720 recorded · 2,699 measured · Source: the US BTS Friday · 2,758 · 2,758 recorded · 2,699 measured · Source: the US BTS Saturday · 2,318 · 2,318 recorded · 2,273 measured · Source: the US BTS Sunday · 2,709 · 2,709 recorded · 2,636 measured · Source: the US BTS

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View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
Monday72.1%19.1 min2,7032,776
Tuesday79.5%13.6 min2,4742,505
Wednesday80.5%9.2 min2,5012,507
Thursday74.5%15.1 min2,6992,720
Friday75.7%16.1 min2,6992,758
Saturday77.3%14.7 min2,2732,318
Sunday72.2%19.7 min2,6362,709

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 · 76.0% · 1,447 recorded · 1,364 measured · Source: the US BTS Feb · 76.1% · 1,339 recorded · 1,285 measured · Source: the US BTS Mar · 78.8% · 1,654 recorded · 1,635 measured · Source: the US BTS Apr · 77.2% · 1,816 recorded · 1,804 measured · Source: the US BTS May · 77.6% · 1,847 recorded · 1,838 measured · Source: the US BTS Jun · 75.8% · 1,805 recorded · 1,784 measured · Source: the US BTS Jul · 66.4% · 1,784 recorded · 1,742 measured · Source: the US BTS Aug · 76.9% · 806 recorded · 800 measured · Source: the US BTS Sep · 72.7% · 800 recorded · 798 measured · Source: the US BTS Oct · 77.6% · 1,472 recorded · 1,466 measured · Source: the US BTS Nov · 82.7% · 1,744 recorded · 1,729 measured · Source: the US BTS Dec · 71.8% · 1,779 recorded · 1,740 measured · Source: the US BTS

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Average departure delay Partial coverage: only airlines that report on-time data to the US DOT
Jan · 17.4 min · 1,447 recorded · 1,364 measured · Source: the US BTS Feb · 18.7 min · 1,339 recorded · 1,285 measured · Source: the US BTS Mar · 12.5 min · 1,654 recorded · 1,635 measured · Source: the US BTS Apr · 12.3 min · 1,816 recorded · 1,804 measured · Source: the US BTS May · 12.4 min · 1,847 recorded · 1,838 measured · Source: the US BTS Jun · 16.4 min · 1,805 recorded · 1,784 measured · Source: the US BTS Jul · 24.8 min · 1,784 recorded · 1,742 measured · Source: the US BTS Aug · 12.3 min · 806 recorded · 800 measured · Source: the US BTS Sep · 18.4 min · 800 recorded · 798 measured · Source: the US BTS Oct · 14.6 min · 1,472 recorded · 1,466 measured · Source: the US BTS Nov · 10.1 min · 1,744 recorded · 1,729 measured · Source: the US BTS Dec · 16.8 min · 1,779 recorded · 1,740 measured · Source: the US BTS

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Recorded flights Partial coverage: only airlines that report on-time data to the US DOT
Jan · 1,447 · 1,447 recorded · 1,364 measured · Source: the US BTS Feb · 1,339 · 1,339 recorded · 1,285 measured · Source: the US BTS Mar · 1,654 · 1,654 recorded · 1,635 measured · Source: the US BTS Apr · 1,816 · 1,816 recorded · 1,804 measured · Source: the US BTS May · 1,847 · 1,847 recorded · 1,838 measured · Source: the US BTS Jun · 1,805 · 1,805 recorded · 1,784 measured · Source: the US BTS Jul · 1,784 · 1,784 recorded · 1,742 measured · Source: the US BTS Aug · 806 · 806 recorded · 800 measured · Source: the US BTS Sep · 800 · 800 recorded · 798 measured · Source: the US BTS Oct · 1,472 · 1,472 recorded · 1,466 measured · Source: the US BTS Nov · 1,744 · 1,744 recorded · 1,729 measured · Source: the US BTS Dec · 1,779 · 1,779 recorded · 1,740 measured · Source: the US BTS

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View the figures
Month of yearOn-time departuresAverage departure delayWith departure timeRecorded flights
Jan76.0%17.4 min1,3641,447
Feb76.1%18.7 min1,2851,339
Mar78.8%12.5 min1,6351,654
Apr77.2%12.3 min1,8041,816
May77.6%12.4 min1,8381,847
Jun75.8%16.4 min1,7841,805
Jul66.4%24.8 min1,7421,784
Aug76.9%12.3 min800806
Sep72.7%18.4 min798800
Oct77.6%14.6 min1,4661,472
Nov82.7%10.1 min1,7291,744
Dec71.8%16.8 min1,7401,779

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 74.6% 13,643
  • Delayed >15 min 23.7% 4,342
  • Cancelled 1.7% 308
  • 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

65
65 of 65
Flight numbersBy direction DeparturesOn time
DL695 BOS → ATL 658 91.5%
DL855 ATL → BOS 658 84.8%
DL865 ATL → BOS 652 71.9%
DL973 BOS → ATL 651 83.3%
DL456 BOS → ATL 649 88.9%
DL322 BOS → ATL 646 81.9%
DL726 ATL → BOS 641 68.5%
DL350 ATL → BOS 626 73.1%
DL385 BOS → ATL 625 83.6%
DL300 ATL → BOS 611 65.6%
DL923 BOS → ATL 609 86.9%
DL862 ATL → BOS 570 81.9%
DL821 ATL → BOS 556 65.8%
B66896 ATL → BOS 517 67.2%
DL987 ATL → BOS 517 91.2%
DL518 ATL → BOS 509 61.1%
DL638 BOS → ATL 499 74.3%
B661097 BOS → ATL 455 82.0%
DL399 BOS → ATL 451 63.8%
F993511 BOS → ATL 446 71.7%
DL376 BOS → ATL 440 86.8%
F993512 ATL → BOS 434 70.7%
DL849 ATL → BOS 433 91.1%
DL2595 ATL → BOS 431 61.6%
DL2464 BOS → ATL 402 60.9%
DL900 BOS → ATL 356 61.3%
B66697 BOS → ATL 348 64.7%
B66696 ATL → BOS 300 76.5%
F993086 ATL → BOS 197 53.4%
F993085 BOS → ATL 186 87.1%
B66396 ATL → BOS 184 72.9%
B66397 BOS → ATL 158 83.2%
B66797 BOS → ATL 147 89.5%
B661096 ATL → BOS 121 66.7%
B66796 ATL → BOS 116 77.9%
B66897 BOS → ATL 113 59.1%
DL2432 ATL → BOS 110 91.7%
DL2779 BOS → ATL 109 89.8%
DL963 BOS → ATL 102 81.2%
DL476 BOS → ATL 96 68.5%
B66597 BOS → ATL 95 69.5%
DL971 ATL → BOS 88 70.5%
NK1460 BOS → ATL 88 81.6%
B661897 BOS → ATL 87 48.2%
NK1444 ATL → BOS 87 81.6%
B661896 ATL → BOS 86 78.6%
DL2242 BOS → ATL 86 96.5%
B661317 BOS → ATL 74 45.2%
DL967 BOS → ATL 68 89.7%
B661308 ATL → BOS 65 40.6%
B661996 ATL → BOS 63 93.7%
NK214 ATL → BOS 63 77.8%
NK1160 ATL → BOS 62 63.3%
NK217 BOS → ATL 62 65.6%
DL2269 ATL → BOS 61 55.0%
NK1161 BOS → ATL 61 66.7%
NK2091 BOS → ATL 58 87.9%
NK2092 ATL → BOS 58 62.1%
NK1363 BOS → ATL 46 86.7%
NK1360 ATL → BOS 45 95.4%
B66556 ATL → BOS 42 92.9%
B661997 BOS → ATL 33 51.5%
B661097 ATL → BOS 31 74.2%
B661857 BOS → ATL 31 64.5%
B66896 BOS → ATL 31 51.6%

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 905 +8.1% 29 63.5%
June 2026 921 +6.7% 11 80.3%
May 2026 918 −0.2% 8 83.0%
April 2026 885 −3.7% 4 76.7%
March 2026 791 −6.3% 16 76.4%
February 2026 611 −9.3% 43 75.8%
January 2026 637 −12.4% 50 75.0%
December 2025 811 −12.7% 22 69.3%
November 2025 819 −10.0% 13 80.3%
October 2025 844 +35.7% 6 73.6%
September 2025 798 2 72.7%
August 2025 800 6 76.9%
July 2025 837 13 69.4%
June 2025 863 10 71.0%
May 2025 920 1 72.3%
April 2025 919 8 77.6%
March 2025 844 3 81.2%
February 2025 674 11 76.4%
January 2025 727 33 76.8%
December 2024 929 17 74.1%
November 2024 910 2 84.7%
October 2024 622 0 83.1%

How to read this chart

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