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3,154 km · Domestic

Cincinnati Northern Kentucky (CVG) – Seattle–Tacoma (SEA)

In July 2026, 184 flights operated between Cincinnati Northern Kentucky and Seattle–Tacoma (both directions), and 86.4% 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
January106118▲ 11.3%
February95112▲ 17.9%
March112118▲ 5.4%
April1201200.0%
May124123▼ 0.8%
June159163▲ 2.5%
July183184▲ 0.5%
August161––
September120––
October120–in progress
November114––
December118––
Year to date (Jan–Jul)899938▲ 4.3%

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
January83.0%82.2%▼ 1.0%
February80.0%87.5%▲ 9.4%
March90.2%81.4%▼ 9.8%
April90.0%82.5%▼ 8.3%
May83.9%85.4%▲ 1.8%
June71.7%85.3%▲ 19.0%
July74.3%86.4%▲ 16.3%
August78.9%––
September90.0%––
October91.7%–in progress
November86.8%––
December78.8%––
Year-to-date average (Jan–Jul)81.9%84.4%▲ 3.1%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January45▲ 25.0%
February10▼ 100.0%
March05–
April00–
May01–
June00–
July10▼ 100.0%
August0––
September0––
October2–in progress
November0––
December2––
Year to date (Jan–Jul)611▲ 83.3%

Airlines on this route

  1. Alaska Airlines 53.4%
  2. Delta Air Lines 46.6%

Oct 1, 2024 – Jul 31, 2026

By direction

CVG → SEA

Scheduled flights
1,398
Flights operated
1,386
Cancelled
12 · 0.9%
On-time departures
83.8%

SEA → CVG

Scheduled flights
1,399
Flights operated
1,390
Cancelled
9 · 0.6%
On-time departures
82.5%

CVG → SEA and SEA → CVG counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
Alaska Airlines AS 1,493 53.4% 76.9% 14
Delta Air Lines DL 1,304 46.6% 90.2% 7

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 delay06:00–07:001.8min · 355 recorded · 353 measured
Gap to highest-delay hour7.4min06:00 ↔ 18:00
Recorded flights2,797CVG–SEA

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 · 94.9% · 355 recorded · 353 measured · Source: the US BTS 07:00 · 89.1% · 266 recorded · 266 measured · Source: the US BTS 08:00 · Fewer than 200 measured departures · 190 recorded · 186 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 14 recorded · 14 measured · Source: the US BTS 10:00 · 80.0% · 493 recorded · 491 measured · Source: the US BTS 11:00 · 86.7% · 651 recorded · 647 measured · Source: the US BTS 12:00 · Fewer than 200 measured departures · 37 recorded · 35 measured · Source: the US BTS 13:00 · Fewer than 200 measured departures · 32 recorded · 31 measured · Source: the US BTS 14:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 4 recorded · 4 measured · Source: the US BTS 16:00 · Fewer than 200 measured departures · 14 recorded · 13 measured · Source: the US BTS 17:00 · Fewer than 200 measured departures · 88 recorded · 88 measured · Source: the US BTS 18:00 · 77.8% · 449 recorded · 445 measured · Source: the US BTS 19:00 · Fewer than 200 measured departures · 84 recorded · 83 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 · Fewer than 200 measured departures · 52 recorded · 52 measured · Source: the US BTS 23:00 · Fewer than 200 measured departures · 68 recorded · 68 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 · 1.8 min · 355 recorded · 353 measured · Source: the US BTS 07:00 · 7.1 min · 266 recorded · 266 measured · Source: the US BTS 08:00 · Fewer than 200 measured departures · 190 recorded · 186 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 14 recorded · 14 measured · Source: the US BTS 10:00 · 7.5 min · 493 recorded · 491 measured · Source: the US BTS 11:00 · 5.0 min · 651 recorded · 647 measured · Source: the US BTS 12:00 · Fewer than 200 measured departures · 37 recorded · 35 measured · Source: the US BTS 13:00 · Fewer than 200 measured departures · 32 recorded · 31 measured · Source: the US BTS 14:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 4 recorded · 4 measured · Source: the US BTS 16:00 · Fewer than 200 measured departures · 14 recorded · 13 measured · Source: the US BTS 17:00 · Fewer than 200 measured departures · 88 recorded · 88 measured · Source: the US BTS 18:00 · 9.2 min · 449 recorded · 445 measured · Source: the US BTS 19:00 · Fewer than 200 measured departures · 84 recorded · 83 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 · Fewer than 200 measured departures · 52 recorded · 52 measured · Source: the US BTS 23:00 · Fewer than 200 measured departures · 68 recorded · 68 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 · 355 · 355 recorded · 353 measured · Source: the US BTS 07:00 · 266 · 266 recorded · 266 measured · Source: the US BTS 08:00 · 190 · 190 recorded · 186 measured · Source: the US BTS 09:00 · 14 · 14 recorded · 14 measured · Source: the US BTS 10:00 · 493 · 493 recorded · 491 measured · Source: the US BTS 11:00 · 651 · 651 recorded · 647 measured · Source: the US BTS 12:00 · 37 · 37 recorded · 35 measured · Source: the US BTS 13:00 · 32 · 32 recorded · 31 measured · Source: the US BTS 14:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 15:00 · 4 · 4 recorded · 4 measured · Source: the US BTS 16:00 · 14 · 14 recorded · 13 measured · Source: the US BTS 17:00 · 88 · 88 recorded · 88 measured · Source: the US BTS 18:00 · 449 · 449 recorded · 445 measured · Source: the US BTS 19:00 · 84 · 84 recorded · 83 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 · 52 · 52 recorded · 52 measured · Source: the US BTS 23:00 · 68 · 68 recorded · 68 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———
06:0094.9%1.8 min353355
07:0089.1%7.1 min266266
08:00Fewer than 200 measured departures—186190
09:00Fewer than 200 measured departures—1414
10:0080.0%7.5 min491493
11:0086.7%5.0 min647651
12:00Fewer than 200 measured departures—3537
13:00Fewer than 200 measured departures—3132
14:00No observations———
15:00Fewer than 200 measured departures—44
16:00Fewer than 200 measured departures—1314
17:00Fewer than 200 measured departures—8888
18:0077.8%9.2 min445449
19:00Fewer than 200 measured departures—8384
20:00No observations———
21:00No observations———
22:00Fewer than 200 measured departures—5252
23:00Fewer than 200 measured departures—6868

Day of week

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
Monday · 83.1% · 410 recorded · 407 measured · Source: the US BTS Tuesday · 87.3% · 379 recorded · 379 measured · Source: the US BTS Wednesday · 86.6% · 410 recorded · 409 measured · Source: the US BTS Thursday · 82.8% · 402 recorded · 400 measured · Source: the US BTS Friday · 84.9% · 408 recorded · 405 measured · Source: the US BTS Saturday · 81.3% · 378 recorded · 375 measured · Source: the US BTS Sunday · 76.1% · 410 recorded · 401 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 · 10.0 min · 410 recorded · 407 measured · Source: the US BTS Tuesday · 3.7 min · 379 recorded · 379 measured · Source: the US BTS Wednesday · 4.7 min · 410 recorded · 409 measured · Source: the US BTS Thursday · 5.8 min · 402 recorded · 400 measured · Source: the US BTS Friday · 5.0 min · 408 recorded · 405 measured · Source: the US BTS Saturday · 7.9 min · 378 recorded · 375 measured · Source: the US BTS Sunday · 17.2 min · 410 recorded · 401 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 · 410 · 410 recorded · 407 measured · Source: the US BTS Tuesday · 379 · 379 recorded · 379 measured · Source: the US BTS Wednesday · 410 · 410 recorded · 409 measured · Source: the US BTS Thursday · 402 · 402 recorded · 400 measured · Source: the US BTS Friday · 408 · 408 recorded · 405 measured · Source: the US BTS Saturday · 378 · 378 recorded · 375 measured · Source: the US BTS Sunday · 410 · 410 recorded · 401 measured · Source: the US BTS

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View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
Monday83.1%10.0 min407410
Tuesday87.3%3.7 min379379
Wednesday86.6%4.7 min409410
Thursday82.8%5.8 min400402
Friday84.9%5.0 min405408
Saturday81.3%7.9 min375378
Sunday76.1%17.2 min401410

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 · 82.6% · 233 recorded · 224 measured · Source: the US BTS Feb · 84.1% · 208 recorded · 207 measured · Source: the US BTS Mar · 85.7% · 235 recorded · 230 measured · Source: the US BTS Apr · 86.3% · 240 recorded · 240 measured · Source: the US BTS May · 84.6% · 248 recorded · 247 measured · Source: the US BTS Jun · 78.6% · 322 recorded · 322 measured · Source: the US BTS Jul · 80.4% · 368 recorded · 367 measured · Source: the US BTS Aug · Fewer than 200 measured departures · 161 recorded · 161 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 120 recorded · 120 measured · Source: the US BTS Oct · Fewer than 200 measured departures · 200 recorded · 198 measured · Source: the US BTS Nov · 86.4% · 228 recorded · 228 measured · Source: the US BTS Dec · 76.3% · 234 recorded · 232 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 · 8.4 min · 233 recorded · 224 measured · Source: the US BTS Feb · 9.5 min · 208 recorded · 207 measured · Source: the US BTS Mar · 5.9 min · 235 recorded · 230 measured · Source: the US BTS Apr · 5.4 min · 240 recorded · 240 measured · Source: the US BTS May · 4.1 min · 248 recorded · 247 measured · Source: the US BTS Jun · 14.1 min · 322 recorded · 322 measured · Source: the US BTS Jul · 12.2 min · 368 recorded · 367 measured · Source: the US BTS Aug · Fewer than 200 measured departures · 161 recorded · 161 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 120 recorded · 120 measured · Source: the US BTS Oct · Fewer than 200 measured departures · 200 recorded · 198 measured · Source: the US BTS Nov · 2.7 min · 228 recorded · 228 measured · Source: the US BTS Dec · 9.4 min · 234 recorded · 232 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 · 233 · 233 recorded · 224 measured · Source: the US BTS Feb · 208 · 208 recorded · 207 measured · Source: the US BTS Mar · 235 · 235 recorded · 230 measured · Source: the US BTS Apr · 240 · 240 recorded · 240 measured · Source: the US BTS May · 248 · 248 recorded · 247 measured · Source: the US BTS Jun · 322 · 322 recorded · 322 measured · Source: the US BTS Jul · 368 · 368 recorded · 367 measured · Source: the US BTS Aug · 161 · 161 recorded · 161 measured · Source: the US BTS Sep · 120 · 120 recorded · 120 measured · Source: the US BTS Oct · 200 · 200 recorded · 198 measured · Source: the US BTS Nov · 228 · 228 recorded · 228 measured · Source: the US BTS Dec · 234 · 234 recorded · 232 measured · Source: the US BTS

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View the figures
Month of yearOn-time departuresAverage departure delayWith departure timeRecorded flights
Jan82.6%8.4 min224233
Feb84.1%9.5 min207208
Mar85.7%5.9 min230235
Apr86.3%5.4 min240240
May84.6%4.1 min247248
Jun78.6%14.1 min322322
Jul80.4%12.2 min367368
AugFewer than 200 measured departures—161161
SepFewer than 200 measured departures—120120
OctFewer than 200 measured departures—198200
Nov86.4%2.7 min228228
Dec76.3%9.4 min232234

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 82.5% 2,308
  • Delayed >15 min 16.7% 468
  • Cancelled 0.8% 21
  • 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

15
15 of 15
Flight numbersBy direction DeparturesOn time
AS508 SEA → CVG 627 79.4%
DL558 SEA → CVG 582 89.1%
DL966 CVG → SEA 491 94.3%
AS508 CVG → SEA 340 74.2%
AS393 CVG → SEA 215 80.8%
DL558 CVG → SEA 70 80.9%
AS428 CVG → SEA 69 63.8%
AS427 SEA → CVG 67 58.2%
AS302 CVG → SEA 52 80.8%
AS298 SEA → CVG 51 78.4%
DL724 CVG → SEA 37 81.1%
DL424 SEA → CVG 36 80.6%
AS515 CVG → SEA 35 78.8%
AS509 CVG → SEA 34 90.6%
DL714 SEA → CVG 34 84.4%

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 184 +0.5% 0 86.4%
June 2026 163 +2.5% 0 85.3%
May 2026 123 −0.8% 1 85.4%
April 2026 120 +0.0% 0 82.5%
March 2026 118 +5.4% 5 81.4%
February 2026 112 +17.9% 0 87.5%
January 2026 118 +11.3% 5 82.2%
December 2025 118 +3.5% 2 78.8%
November 2025 114 +0.0% 0 86.8%
October 2025 120 +53.8% 2 91.7%
September 2025 120 0 90.0%
August 2025 161 0 78.9%
July 2025 183 1 74.3%
June 2025 159 0 71.7%
May 2025 124 0 83.9%
April 2025 120 0 90.0%
March 2025 112 0 90.2%
February 2025 95 1 80.0%
January 2025 106 4 83.0%
December 2024 114 0 73.7%
November 2024 114 0 86.0%
October 2024 78 0 88.5%

How to read this chart

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