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3,808 km · Domestic

Ellison Onizuka Kona International Airport at Keāhole (KOA) – San Francisco (SFO)

In July 2026, 309 flights operated between Ellison Onizuka Kona International Airport at Keāhole and San Francisco (both directions), and 85.4% 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
January90178▲ 97.8%
February64157▲ 145.3%
March124192▲ 54.8%
April127194▲ 52.8%
May134207▲ 54.5%
June150292▲ 94.7%
July168309▲ 83.9%
August166––
September154––
October133–in progress
November124––
December181––
Year to date (Jan–Jul)8571,529▲ 78.4%

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
January74.4%89.3%▲ 20.0%
February89.1%85.4%▼ 4.2%
March83.1%84.9%▲ 2.2%
April88.2%92.3%▲ 4.6%
May92.5%86.5%▼ 6.5%
June90.7%84.9%▼ 6.4%
July79.2%85.4%▲ 7.8%
August81.3%––
September91.6%––
October74.4%–in progress
November87.1%––
December84.5%––
Year-to-date average (Jan–Jul)85.3%87.0%▲ 1.9%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January00–
February01–
March08–
April10▼ 100.0%
May02–
June00–
July01–
August0––
September0––
October1–in progress
November0––
December1––
Year to date (Jan–Jul)112▲ 1,100.0%

Airlines on this route

  1. United Airlines 84.9%
  2. Alaska Airlines 15.1%

Oct 1, 2024 – Jul 31, 2026

By direction

KOA → SFO

Scheduled flights
1,720
Flights operated
1,707
Cancelled
13 · 0.8%
On-time departures
85.2%

SFO → KOA

Scheduled flights
1,721
Flights operated
1,718
Cancelled
3 · 0.2%
On-time departures
85.7%

KOA → SFO and SFO → KOA counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
United Airlines UA 2,921 84.9% 86.9% 15
Alaska Airlines AS 520 15.1% 77.5% 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 delay07:00–08:00-0.6min · 351 recorded · 351 measured
Gap to highest-delay hour14.3min07:00 ↔ 14:00
Recorded flights3,441KOA–SFO

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 · No observations · 0 recorded · 0 measured · Source: the US BTS 07:00 · 93.7% · 351 recorded · 351 measured · Source: the US BTS 08:00 · Fewer than 200 measured departures · 152 recorded · 152 measured · Source: the US BTS 09:00 · 82.1% · 508 recorded · 507 measured · Source: the US BTS 10:00 · Fewer than 200 measured departures · 143 recorded · 143 measured · Source: the US BTS 11:00 · Fewer than 200 measured departures · 164 recorded · 162 measured · Source: the US BTS 12:00 · Fewer than 200 measured departures · 73 recorded · 72 measured · Source: the US BTS 13:00 · 82.4% · 378 recorded · 374 measured · Source: the US BTS 14:00 · 77.0% · 334 recorded · 331 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 191 recorded · 190 measured · Source: the US BTS 16:00 · 86.1% · 439 recorded · 438 measured · Source: the US BTS 17:00 · Fewer than 200 measured departures · 100 recorded · 100 measured · Source: the US BTS 18:00 · Fewer than 200 measured departures · 42 recorded · 42 measured · Source: the US BTS 19:00 · Fewer than 200 measured departures · 72 recorded · 72 measured · Source: the US BTS 20:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 21:00 · Fewer than 200 measured departures · 3 recorded · 3 measured · Source: the US BTS 22:00 · 92.1% · 320 recorded · 318 measured · Source: the US BTS 23:00 · Fewer than 200 measured departures · 171 recorded · 170 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 · No observations · 0 recorded · 0 measured · Source: the US BTS 07:00 · -0.6 min · 351 recorded · 351 measured · Source: the US BTS 08:00 · Fewer than 200 measured departures · 152 recorded · 152 measured · Source: the US BTS 09:00 · 13.5 min · 508 recorded · 507 measured · Source: the US BTS 10:00 · Fewer than 200 measured departures · 143 recorded · 143 measured · Source: the US BTS 11:00 · Fewer than 200 measured departures · 164 recorded · 162 measured · Source: the US BTS 12:00 · Fewer than 200 measured departures · 73 recorded · 72 measured · Source: the US BTS 13:00 · 10.8 min · 378 recorded · 374 measured · Source: the US BTS 14:00 · 13.6 min · 334 recorded · 331 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 191 recorded · 190 measured · Source: the US BTS 16:00 · 5.3 min · 439 recorded · 438 measured · Source: the US BTS 17:00 · Fewer than 200 measured departures · 100 recorded · 100 measured · Source: the US BTS 18:00 · Fewer than 200 measured departures · 42 recorded · 42 measured · Source: the US BTS 19:00 · Fewer than 200 measured departures · 72 recorded · 72 measured · Source: the US BTS 20:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 21:00 · Fewer than 200 measured departures · 3 recorded · 3 measured · Source: the US BTS 22:00 · 1.0 min · 320 recorded · 318 measured · Source: the US BTS 23:00 · Fewer than 200 measured departures · 171 recorded · 170 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 · No observations · 0 recorded · 0 measured · Source: the US BTS 07:00 · 351 · 351 recorded · 351 measured · Source: the US BTS 08:00 · 152 · 152 recorded · 152 measured · Source: the US BTS 09:00 · 508 · 508 recorded · 507 measured · Source: the US BTS 10:00 · 143 · 143 recorded · 143 measured · Source: the US BTS 11:00 · 164 · 164 recorded · 162 measured · Source: the US BTS 12:00 · 73 · 73 recorded · 72 measured · Source: the US BTS 13:00 · 378 · 378 recorded · 374 measured · Source: the US BTS 14:00 · 334 · 334 recorded · 331 measured · Source: the US BTS 15:00 · 191 · 191 recorded · 190 measured · Source: the US BTS 16:00 · 439 · 439 recorded · 438 measured · Source: the US BTS 17:00 · 100 · 100 recorded · 100 measured · Source: the US BTS 18:00 · 42 · 42 recorded · 42 measured · Source: the US BTS 19:00 · 72 · 72 recorded · 72 measured · Source: the US BTS 20:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 21:00 · 3 · 3 recorded · 3 measured · Source: the US BTS 22:00 · 320 · 320 recorded · 318 measured · Source: the US BTS 23:00 · 171 · 171 recorded · 170 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———
05:00No observations———
06:00No observations———
07:0093.7%-0.6 min351351
08:00Fewer than 200 measured departures—152152
09:0082.1%13.5 min507508
10:00Fewer than 200 measured departures—143143
11:00Fewer than 200 measured departures—162164
12:00Fewer than 200 measured departures—7273
13:0082.4%10.8 min374378
14:0077.0%13.6 min331334
15:00Fewer than 200 measured departures—190191
16:0086.1%5.3 min438439
17:00Fewer than 200 measured departures—100100
18:00Fewer than 200 measured departures—4242
19:00Fewer than 200 measured departures—7272
20:00No observations———
21:00Fewer than 200 measured departures—33
22:0092.1%1.0 min318320
23:00Fewer than 200 measured departures—170171

Day of week

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
Monday · 89.3% · 440 recorded · 439 measured · Source: the US BTS Tuesday · 86.4% · 479 recorded · 477 measured · Source: the US BTS Wednesday · 85.0% · 400 recorded · 400 measured · Source: the US BTS Thursday · 82.1% · 516 recorded · 515 measured · Source: the US BTS Friday · 83.1% · 450 recorded · 449 measured · Source: the US BTS Saturday · 85.0% · 624 recorded · 614 measured · Source: the US BTS Sunday · 87.6% · 532 recorded · 531 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 · 1.8 min · 440 recorded · 439 measured · Source: the US BTS Tuesday · 6.2 min · 479 recorded · 477 measured · Source: the US BTS Wednesday · 8.9 min · 400 recorded · 400 measured · Source: the US BTS Thursday · 15.9 min · 516 recorded · 515 measured · Source: the US BTS Friday · 8.9 min · 450 recorded · 449 measured · Source: the US BTS Saturday · 7.1 min · 624 recorded · 614 measured · Source: the US BTS Sunday · 3.8 min · 532 recorded · 531 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 · 440 · 440 recorded · 439 measured · Source: the US BTS Tuesday · 479 · 479 recorded · 477 measured · Source: the US BTS Wednesday · 400 · 400 recorded · 400 measured · Source: the US BTS Thursday · 516 · 516 recorded · 515 measured · Source: the US BTS Friday · 450 · 450 recorded · 449 measured · Source: the US BTS Saturday · 624 · 624 recorded · 614 measured · Source: the US BTS Sunday · 532 · 532 recorded · 531 measured · Source: the US BTS

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View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
Monday89.3%1.8 min439440
Tuesday86.4%6.2 min477479
Wednesday85.0%8.9 min400400
Thursday82.1%15.9 min515516
Friday83.1%8.9 min449450
Saturday85.0%7.1 min614624
Sunday87.6%3.8 min531532

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 · 84.3% · 268 recorded · 268 measured · Source: the US BTS Feb · 86.4% · 222 recorded · 221 measured · Source: the US BTS Mar · 84.2% · 324 recorded · 316 measured · Source: the US BTS Apr · 90.7% · 322 recorded · 321 measured · Source: the US BTS May · 88.9% · 343 recorded · 341 measured · Source: the US BTS Jun · 86.9% · 442 recorded · 442 measured · Source: the US BTS Jul · 83.2% · 478 recorded · 477 measured · Source: the US BTS Aug · Fewer than 200 measured departures · 166 recorded · 166 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 154 recorded · 154 measured · Source: the US BTS Oct · 78.9% · 214 recorded · 213 measured · Source: the US BTS Nov · 84.1% · 208 recorded · 207 measured · Source: the US BTS Dec · 84.0% · 300 recorded · 299 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 · 7.6 min · 268 recorded · 268 measured · Source: the US BTS Feb · 4.0 min · 222 recorded · 221 measured · Source: the US BTS Mar · 7.1 min · 324 recorded · 316 measured · Source: the US BTS Apr · 7.5 min · 322 recorded · 321 measured · Source: the US BTS May · 2.2 min · 343 recorded · 341 measured · Source: the US BTS Jun · 6.3 min · 442 recorded · 442 measured · Source: the US BTS Jul · 9.5 min · 478 recorded · 477 measured · Source: the US BTS Aug · Fewer than 200 measured departures · 166 recorded · 166 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 154 recorded · 154 measured · Source: the US BTS Oct · 9.6 min · 214 recorded · 213 measured · Source: the US BTS Nov · 14.0 min · 208 recorded · 207 measured · Source: the US BTS Dec · 10.3 min · 300 recorded · 299 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 · 268 · 268 recorded · 268 measured · Source: the US BTS Feb · 222 · 222 recorded · 221 measured · Source: the US BTS Mar · 324 · 324 recorded · 316 measured · Source: the US BTS Apr · 322 · 322 recorded · 321 measured · Source: the US BTS May · 343 · 343 recorded · 341 measured · Source: the US BTS Jun · 442 · 442 recorded · 442 measured · Source: the US BTS Jul · 478 · 478 recorded · 477 measured · Source: the US BTS Aug · 166 · 166 recorded · 166 measured · Source: the US BTS Sep · 154 · 154 recorded · 154 measured · Source: the US BTS Oct · 214 · 214 recorded · 213 measured · Source: the US BTS Nov · 208 · 208 recorded · 207 measured · Source: the US BTS Dec · 300 · 300 recorded · 299 measured · Source: the US BTS

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View the figures
Month of yearOn-time departuresAverage departure delayWith departure timeRecorded flights
Jan84.3%7.6 min268268
Feb86.4%4.0 min221222
Mar84.2%7.1 min316324
Apr90.7%7.5 min321322
May88.9%2.2 min341343
Jun86.9%6.3 min442442
Jul83.2%9.5 min477478
AugFewer than 200 measured departures—166166
SepFewer than 200 measured departures—154154
Oct78.9%9.6 min213214
Nov84.1%14.0 min207208
Dec84.0%10.3 min299300

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 85.1% 2,927
  • Delayed >15 min 14.5% 498
  • Cancelled 0.5% 16
  • 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

16
16 of 16
Flight numbersBy direction DeparturesOn time
UA1721 SFO → KOA 658 83.1%
UA1722 KOA → SFO 643 83.3%
UA1724 KOA → SFO 474 96.0%
UA1723 SFO → KOA 452 86.7%
UA693 KOA → SFO 232 89.6%
AS788 KOA → SFO 160 58.5%
AS789 SFO → KOA 160 92.5%
UA694 SFO → KOA 117 88.8%
UA731 SFO → KOA 72 80.6%
UA1321 KOA → SFO 71 98.6%
UA2229 SFO → KOA 59 86.4%
AS404 KOA → SFO 52 57.7%
AS693 SFO → KOA 52 94.2%
UA1449 SFO → KOA 51 84.3%
AS39 SFO → KOA 48 93.8%
AS40 KOA → SFO 48 77.1%

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 309 +83.9% 1 85.4%
June 2026 292 +94.7% 0 84.9%
May 2026 207 +54.5% 2 86.5%
April 2026 194 +52.8% 0 92.3%
March 2026 192 +54.8% 8 84.9%
February 2026 157 +145.3% 1 85.4%
January 2026 178 +97.8% 0 89.3%
December 2025 181 +53.4% 1 84.5%
November 2025 124 +49.4% 0 87.1%
October 2025 133 +66.3% 1 74.4%
September 2025 154 0 91.6%
August 2025 166 0 81.3%
July 2025 168 0 79.2%
June 2025 150 0 90.7%
May 2025 134 0 92.5%
April 2025 127 1 88.2%
March 2025 124 0 83.1%
February 2025 64 0 89.1%
January 2025 90 0 74.4%
December 2024 118 0 83.1%
November 2024 83 1 79.5%
October 2024 80 0 86.3%

How to read this chart

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