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2,551 km · Domestic

John F. Kennedy (JFK) – San Antonio (SAT)

In July 2026, 54 flights operated between John F. Kennedy and San Antonio (both directions), and 81.5% 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
January6254▼ 12.9%
February5652▼ 7.1%
March6254▼ 12.9%
April6260▼ 3.2%
May62620.0%
June5460▲ 11.1%
July6254▼ 12.9%
August62––
September60––
October62–in progress
November59––
December54––
Year to date (Jan–Jul)420396▼ 5.7%

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
January85.5%81.5%▼ 4.7%
February85.7%84.6%▼ 1.3%
March79.0%88.9%▲ 12.5%
April90.3%95.0%▲ 5.2%
May90.3%98.4%▲ 9.0%
June87.0%76.7%▼ 11.8%
July71.0%81.5%▲ 14.8%
August93.5%––
September90.0%––
October88.7%–in progress
November91.5%––
December74.1%––
Year-to-date average (Jan–Jul)84.1%86.7%▲ 3.0%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January06–
February04–
March08–
April00–
May00–
June60▼ 100.0%
July08–
August0––
September0––
October0–in progress
November1––
December4––
Year to date (Jan–Jul)626▲ 333.3%

Airlines on this route

  1. Delta Air Lines 97.8%
  2. JetBlue Airways 2.2%

Oct 1, 2024 – Jul 31, 2026

By direction

JFK → SAT

Scheduled flights
671
Flights operated
653
Cancelled
18 · 2.7%
On-time departures
91.1%

SAT → JFK

Scheduled flights
671
Flights operated
651
Cancelled
20 · 3.0%
On-time departures
79.3%

JFK → SAT and SAT → JFK counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
Delta Air Lines DL 1,312 97.8% 85.9% 37
JetBlue Airways B6 30 2.2% 55.2% 1

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 delay07:00–08:001.9min · 279 recorded · 270 measured
Gap to highest-delay hour15.2min07:00 ↔ 12:00
Recorded flights1,342JFK–SAT

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 · Fewer than 200 measured departures · 1 recorded · 1 measured · Source: the US BTS 07:00 · 93.3% · 279 recorded · 270 measured · Source: the US BTS 08:00 · 93.4% · 310 recorded · 301 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 1 recorded · 1 measured · Source: the US BTS 10:00 · Fewer than 200 measured departures · 25 recorded · 25 measured · Source: the US BTS 11:00 · Fewer than 200 measured departures · 153 recorded · 150 measured · Source: the US BTS 12:00 · 77.3% · 399 recorded · 387 measured · Source: the US BTS 13:00 · Fewer than 200 measured departures · 91 recorded · 87 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 27 recorded · 27 measured · Source: the US BTS 15:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 16:00 · Fewer than 200 measured departures · 31 recorded · 30 measured · Source: the US BTS 17:00 · Fewer than 200 measured departures · 4 recorded · 4 measured · Source: the US BTS 18:00 · Fewer than 200 measured departures · 21 recorded · 21 measured · Source: the US BTS 19:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 20:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 21:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 22:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 23:00 · No observations · 0 recorded · 0 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 · Fewer than 200 measured departures · 1 recorded · 1 measured · Source: the US BTS 07:00 · 1.9 min · 279 recorded · 270 measured · Source: the US BTS 08:00 · 3.3 min · 310 recorded · 301 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 1 recorded · 1 measured · Source: the US BTS 10:00 · Fewer than 200 measured departures · 25 recorded · 25 measured · Source: the US BTS 11:00 · Fewer than 200 measured departures · 153 recorded · 150 measured · Source: the US BTS 12:00 · 17.1 min · 399 recorded · 387 measured · Source: the US BTS 13:00 · Fewer than 200 measured departures · 91 recorded · 87 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 27 recorded · 27 measured · Source: the US BTS 15:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 16:00 · Fewer than 200 measured departures · 31 recorded · 30 measured · Source: the US BTS 17:00 · Fewer than 200 measured departures · 4 recorded · 4 measured · Source: the US BTS 18:00 · Fewer than 200 measured departures · 21 recorded · 21 measured · Source: the US BTS 19:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 20:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 21:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 22:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 23:00 · No observations · 0 recorded · 0 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 · 1 · 1 recorded · 1 measured · Source: the US BTS 07:00 · 279 · 279 recorded · 270 measured · Source: the US BTS 08:00 · 310 · 310 recorded · 301 measured · Source: the US BTS 09:00 · 1 · 1 recorded · 1 measured · Source: the US BTS 10:00 · 25 · 25 recorded · 25 measured · Source: the US BTS 11:00 · 153 · 153 recorded · 150 measured · Source: the US BTS 12:00 · 399 · 399 recorded · 387 measured · Source: the US BTS 13:00 · 91 · 91 recorded · 87 measured · Source: the US BTS 14:00 · 27 · 27 recorded · 27 measured · Source: the US BTS 15:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 16:00 · 31 · 31 recorded · 30 measured · Source: the US BTS 17:00 · 4 · 4 recorded · 4 measured · Source: the US BTS 18:00 · 21 · 21 recorded · 21 measured · Source: the US BTS 19:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 20:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 21:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 22:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 23:00 · No observations · 0 recorded · 0 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———
06:00Fewer than 200 measured departures—11
07:0093.3%1.9 min270279
08:0093.4%3.3 min301310
09:00Fewer than 200 measured departures—11
10:00Fewer than 200 measured departures—2525
11:00Fewer than 200 measured departures—150153
12:0077.3%17.1 min387399
13:00Fewer than 200 measured departures—8791
14:00Fewer than 200 measured departures—2727
15:00No observations———
16:00Fewer than 200 measured departures—3031
17:00Fewer than 200 measured departures—44
18:00Fewer than 200 measured departures—2121
19:00No observations———
20:00No observations———
21:00No observations———
22:00No observations———
23:00No observations———

Day of week

Recorded flights Partial coverage: only airlines that report on-time data to the US DOT
Monday · 192 · 192 recorded · 188 measured · Source: the US BTS Tuesday · 194 · 194 recorded · 187 measured · Source: the US BTS Wednesday · 192 · 192 recorded · 188 measured · Source: the US BTS Thursday · 192 · 192 recorded · 188 measured · Source: the US BTS Friday · 192 · 192 recorded · 186 measured · Source: the US BTS Saturday · 188 · 188 recorded · 183 measured · Source: the US BTS Sunday · 192 · 192 recorded · 184 measured · Source: the US BTS

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

No bucket in this view has 200 measured departures yet. Flight counts are shown; on-time and delay charts become available when the sample is large enough.

View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
MondayFewer than 200 measured departures—188192
TuesdayFewer than 200 measured departures—187194
WednesdayFewer than 200 measured departures—188192
ThursdayFewer than 200 measured departures—188192
FridayFewer than 200 measured departures—186192
SaturdayFewer than 200 measured departures—183188
SundayFewer than 200 measured departures—184192

Month of year

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

Recorded flights Partial coverage: only airlines that report on-time data to the US DOT
Jan · 122 · 122 recorded · 116 measured · Source: the US BTS Feb · 112 · 112 recorded · 108 measured · Source: the US BTS Mar · 124 · 124 recorded · 116 measured · Source: the US BTS Apr · 122 · 122 recorded · 122 measured · Source: the US BTS May · 124 · 124 recorded · 124 measured · Source: the US BTS Jun · 120 · 120 recorded · 114 measured · Source: the US BTS Jul · 124 · 124 recorded · 116 measured · Source: the US BTS Aug · 62 · 62 recorded · 62 measured · Source: the US BTS Sep · 60 · 60 recorded · 60 measured · Source: the US BTS Oct · 132 · 132 recorded · 131 measured · Source: the US BTS Nov · 120 · 120 recorded · 119 measured · Source: the US BTS Dec · 120 · 120 recorded · 116 measured · Source: the US BTS

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

No bucket in this view has 200 measured departures yet. Flight counts are shown; on-time and delay charts become available when the sample is large enough.

View the figures
Month of yearOn-time departuresAverage departure delayWith departure timeRecorded flights
JanFewer than 200 measured departures—116122
FebFewer than 200 measured departures—108112
MarFewer than 200 measured departures—116124
AprFewer than 200 measured departures—122122
MayFewer than 200 measured departures—124124
JunFewer than 200 measured departures—114120
JulFewer than 200 measured departures—116124
AugFewer than 200 measured departures—6262
SepFewer than 200 measured departures—6060
OctFewer than 200 measured departures—131132
NovFewer than 200 measured departures—119120
DecFewer than 200 measured departures—116120

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 82.8% 1,111
  • Delayed >15 min 14.4% 193
  • Cancelled 2.8% 38
  • 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

2
Flight numbersBy direction DeparturesOn time
DL1166 SAT → JFK 655 79.9%
DL1166 JFK → SAT 604 93.0%

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 54 −12.9% 8 81.5%
June 2026 60 +11.1% 0 76.7%
May 2026 62 +0.0% 0 98.4%
April 2026 60 −3.2% 0 95.0%
March 2026 54 −12.9% 8 88.9%
February 2026 52 −7.1% 4 84.6%
January 2026 54 −12.9% 6 81.5%
December 2025 54 −12.9% 4 74.1%
November 2025 59 −1.7% 1 91.5%
October 2025 62 −10.1% 0 88.7%
September 2025 60 0 90.0%
August 2025 62 0 93.5%
July 2025 62 0 71.0%
June 2025 54 6 87.0%
May 2025 62 0 90.3%
April 2025 62 0 90.3%
March 2025 62 0 79.0%
February 2025 56 0 85.7%
January 2025 62 0 85.5%
December 2024 62 0 80.6%
November 2024 60 0 85.0%
October 2024 69 1 75.4%

How to read this chart

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