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151 km · Domestic

Bellingham (BLI) – Seattle–Tacoma (SEA)

In July 2026, 185 flights operated between Bellingham and Seattle–Tacoma (both directions), and 84.9% 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
January216183▼ 15.3%
February204159▼ 22.1%
March205176▼ 14.1%
April191180▼ 5.8%
May238186▼ 21.8%
June238179▼ 24.8%
July246185▼ 24.8%
August246––
September240––
October229–in progress
November173––
December243––
Year to date (Jan–Jul)1,5381,248▼ 18.9%

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
January87.5%86.3%▼ 1.4%
February75.5%90.6%▲ 20.0%
March82.0%87.5%▲ 6.7%
April85.9%92.2%▲ 7.3%
May87.0%89.2%▲ 2.5%
June75.2%81.6%▲ 8.5%
July82.5%84.9%▲ 2.9%
August83.7%––
September85.8%––
October82.5%–in progress
November85.5%––
December79.4%––
Year-to-date average (Jan–Jul)82.2%87.5%▲ 6.4%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January1013▲ 30.0%
February54▼ 20.0%
March24▲ 100.0%
April00–
May00–
June01–
July21▼ 50.0%
August2––
September0––
October4–in progress
November20––
December5––
Year to date (Jan–Jul)1923▲ 21.1%

By direction

BLI → SEA

Scheduled flights
2,216
Flights operated
2,176
Cancelled
40 · 1.8%
On-time departures
85.8%

SEA → BLI

Scheduled flights
2,216
Flights operated
2,173
Cancelled
43 · 1.9%
On-time departures
83.7%

BLI → SEA and SEA → BLI counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
SkyWest Airlines OO 4,432 100.0% 84.8% 83

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 delay05:00–06:001.5min · 455 recorded · 441 measured
Gap to highest-delay hour9.1min05:00 ↔ 11:00
Recorded flights4,432BLI–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 · 93.4% · 455 recorded · 441 measured · Source: the US BTS 06:00 · Fewer than 200 measured departures · 200 recorded · 199 measured · Source: the US BTS 07:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 08:00 · 91.8% · 286 recorded · 282 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 51 recorded · 49 measured · Source: the US BTS 10:00 · Fewer than 200 measured departures · 45 recorded · 44 measured · Source: the US BTS 11:00 · 78.8% · 490 recorded · 481 measured · Source: the US BTS 12:00 · 77.4% · 412 recorded · 403 measured · Source: the US BTS 13:00 · 79.6% · 299 recorded · 299 measured · Source: the US BTS 14:00 · 80.1% · 353 recorded · 347 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 152 recorded · 152 measured · Source: the US BTS 16:00 · 80.2% · 356 recorded · 349 measured · Source: the US BTS 17:00 · Fewer than 200 measured departures · 174 recorded · 172 measured · Source: the US BTS 18:00 · Fewer than 200 measured departures · 155 recorded · 153 measured · Source: the US BTS 19:00 · Fewer than 200 measured departures · 68 recorded · 68 measured · Source: the US BTS 20:00 · 84.8% · 209 recorded · 204 measured · Source: the US BTS 21:00 · Fewer than 200 measured departures · 74 recorded · 74 measured · Source: the US BTS 22:00 · Fewer than 200 measured departures · 5 recorded · 5 measured · Source: the US BTS 23:00 · 90.0% · 648 recorded · 627 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 · 1.5 min · 455 recorded · 441 measured · Source: the US BTS 06:00 · Fewer than 200 measured departures · 200 recorded · 199 measured · Source: the US BTS 07:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 08:00 · 6.5 min · 286 recorded · 282 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 51 recorded · 49 measured · Source: the US BTS 10:00 · Fewer than 200 measured departures · 45 recorded · 44 measured · Source: the US BTS 11:00 · 10.6 min · 490 recorded · 481 measured · Source: the US BTS 12:00 · 8.7 min · 412 recorded · 403 measured · Source: the US BTS 13:00 · 9.9 min · 299 recorded · 299 measured · Source: the US BTS 14:00 · 9.3 min · 353 recorded · 347 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 152 recorded · 152 measured · Source: the US BTS 16:00 · 9.4 min · 356 recorded · 349 measured · Source: the US BTS 17:00 · Fewer than 200 measured departures · 174 recorded · 172 measured · Source: the US BTS 18:00 · Fewer than 200 measured departures · 155 recorded · 153 measured · Source: the US BTS 19:00 · Fewer than 200 measured departures · 68 recorded · 68 measured · Source: the US BTS 20:00 · 5.2 min · 209 recorded · 204 measured · Source: the US BTS 21:00 · Fewer than 200 measured departures · 74 recorded · 74 measured · Source: the US BTS 22:00 · Fewer than 200 measured departures · 5 recorded · 5 measured · Source: the US BTS 23:00 · 1.5 min · 648 recorded · 627 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 · 455 · 455 recorded · 441 measured · Source: the US BTS 06:00 · 200 · 200 recorded · 199 measured · Source: the US BTS 07:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 08:00 · 286 · 286 recorded · 282 measured · Source: the US BTS 09:00 · 51 · 51 recorded · 49 measured · Source: the US BTS 10:00 · 45 · 45 recorded · 44 measured · Source: the US BTS 11:00 · 490 · 490 recorded · 481 measured · Source: the US BTS 12:00 · 412 · 412 recorded · 403 measured · Source: the US BTS 13:00 · 299 · 299 recorded · 299 measured · Source: the US BTS 14:00 · 353 · 353 recorded · 347 measured · Source: the US BTS 15:00 · 152 · 152 recorded · 152 measured · Source: the US BTS 16:00 · 356 · 356 recorded · 349 measured · Source: the US BTS 17:00 · 174 · 174 recorded · 172 measured · Source: the US BTS 18:00 · 155 · 155 recorded · 153 measured · Source: the US BTS 19:00 · 68 · 68 recorded · 68 measured · Source: the US BTS 20:00 · 209 · 209 recorded · 204 measured · Source: the US BTS 21:00 · 74 · 74 recorded · 74 measured · Source: the US BTS 22:00 · 5 · 5 recorded · 5 measured · Source: the US BTS 23:00 · 648 · 648 recorded · 627 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———
05:0093.4%1.5 min441455
06:00Fewer than 200 measured departures—199200
07:00No observations———
08:0091.8%6.5 min282286
09:00Fewer than 200 measured departures—4951
10:00Fewer than 200 measured departures—4445
11:0078.8%10.6 min481490
12:0077.4%8.7 min403412
13:0079.6%9.9 min299299
14:0080.1%9.3 min347353
15:00Fewer than 200 measured departures—152152
16:0080.2%9.4 min349356
17:00Fewer than 200 measured departures—172174
18:00Fewer than 200 measured departures—153155
19:00Fewer than 200 measured departures—6868
20:0084.8%5.2 min204209
21:00Fewer than 200 measured departures—7474
22:00Fewer than 200 measured departures—55
23:0090.0%1.5 min627648

Day of week

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
Monday · 84.8% · 651 recorded · 636 measured · Source: the US BTS Tuesday · 86.7% · 643 recorded · 631 measured · Source: the US BTS Wednesday · 88.0% · 642 recorded · 626 measured · Source: the US BTS Thursday · 81.1% · 639 recorded · 630 measured · Source: the US BTS Friday · 81.4% · 644 recorded · 635 measured · Source: the US BTS Saturday · 88.3% · 583 recorded · 570 measured · Source: the US BTS Sunday · 83.4% · 630 recorded · 621 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 · 6.1 min · 651 recorded · 636 measured · Source: the US BTS Tuesday · 4.5 min · 643 recorded · 631 measured · Source: the US BTS Wednesday · 5.1 min · 642 recorded · 626 measured · Source: the US BTS Thursday · 7.4 min · 639 recorded · 630 measured · Source: the US BTS Friday · 9.8 min · 644 recorded · 635 measured · Source: the US BTS Saturday · 4.8 min · 583 recorded · 570 measured · Source: the US BTS Sunday · 7.2 min · 630 recorded · 621 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 · 651 · 651 recorded · 636 measured · Source: the US BTS Tuesday · 643 · 643 recorded · 631 measured · Source: the US BTS Wednesday · 642 · 642 recorded · 626 measured · Source: the US BTS Thursday · 639 · 639 recorded · 630 measured · Source: the US BTS Friday · 644 · 644 recorded · 635 measured · Source: the US BTS Saturday · 583 · 583 recorded · 570 measured · Source: the US BTS Sunday · 630 · 630 recorded · 621 measured · Source: the US BTS

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View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
Monday84.8%6.1 min636651
Tuesday86.7%4.5 min631643
Wednesday88.0%5.1 min626642
Thursday81.1%7.4 min630639
Friday81.4%9.8 min635644
Saturday88.3%4.8 min570583
Sunday83.4%7.2 min621630

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 · 87.0% · 422 recorded · 399 measured · Source: the US BTS Feb · 82.1% · 372 recorded · 363 measured · Source: the US BTS Mar · 84.5% · 387 recorded · 381 measured · Source: the US BTS Apr · 89.0% · 371 recorded · 371 measured · Source: the US BTS May · 88.0% · 424 recorded · 424 measured · Source: the US BTS Jun · 77.9% · 418 recorded · 417 measured · Source: the US BTS Jul · 83.5% · 434 recorded · 431 measured · Source: the US BTS Aug · 83.7% · 248 recorded · 246 measured · Source: the US BTS Sep · 85.8% · 240 recorded · 240 measured · Source: the US BTS Oct · 84.5% · 345 recorded · 341 measured · Source: the US BTS Nov · 88.1% · 359 recorded · 337 measured · Source: the US BTS Dec · 83.7% · 412 recorded · 399 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 · 5.3 min · 422 recorded · 399 measured · Source: the US BTS Feb · 8.7 min · 372 recorded · 363 measured · Source: the US BTS Mar · 8.9 min · 387 recorded · 381 measured · Source: the US BTS Apr · 3.0 min · 371 recorded · 371 measured · Source: the US BTS May · 5.5 min · 424 recorded · 424 measured · Source: the US BTS Jun · 8.3 min · 418 recorded · 417 measured · Source: the US BTS Jul · 7.5 min · 434 recorded · 431 measured · Source: the US BTS Aug · 4.8 min · 248 recorded · 246 measured · Source: the US BTS Sep · 4.9 min · 240 recorded · 240 measured · Source: the US BTS Oct · 6.2 min · 345 recorded · 341 measured · Source: the US BTS Nov · 3.0 min · 359 recorded · 337 measured · Source: the US BTS Dec · 9.6 min · 412 recorded · 399 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 · 422 · 422 recorded · 399 measured · Source: the US BTS Feb · 372 · 372 recorded · 363 measured · Source: the US BTS Mar · 387 · 387 recorded · 381 measured · Source: the US BTS Apr · 371 · 371 recorded · 371 measured · Source: the US BTS May · 424 · 424 recorded · 424 measured · Source: the US BTS Jun · 418 · 418 recorded · 417 measured · Source: the US BTS Jul · 434 · 434 recorded · 431 measured · Source: the US BTS Aug · 248 · 248 recorded · 246 measured · Source: the US BTS Sep · 240 · 240 recorded · 240 measured · Source: the US BTS Oct · 345 · 345 recorded · 341 measured · Source: the US BTS Nov · 359 · 359 recorded · 337 measured · Source: the US BTS Dec · 412 · 412 recorded · 399 measured · Source: the US BTS

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View the figures
Month of yearOn-time departuresAverage departure delayWith departure timeRecorded flights
Jan87.0%5.3 min399422
Feb82.1%8.7 min363372
Mar84.5%8.9 min381387
Apr89.0%3.0 min371371
May88.0%5.5 min424424
Jun77.9%8.3 min417418
Jul83.5%7.5 min431434
Aug83.7%4.8 min246248
Sep85.8%4.9 min240240
Oct84.5%6.2 min341345
Nov88.1%3.0 min337359
Dec83.7%9.6 min399412

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 83.2% 3,686
  • Delayed >15 min 15.0% 663
  • Cancelled 1.9% 83
  • 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

27
27 of 27
Flight numbersBy direction DeparturesOn time
OO3400 SEA → BLI 333 79.7%
OO3400 BLI → SEA 299 74.8%
OO3303 BLI → SEA 290 93.7%
OO3294 BLI → SEA 279 83.0%
OO3294 SEA → BLI 278 81.5%
OO3448 BLI → SEA 260 96.4%
OO3460 SEA → BLI 253 93.0%
OO3433 SEA → BLI 239 81.6%
OO3419 SEA → BLI 207 89.9%
OO3433 BLI → SEA 184 84.3%
OO3357 SEA → BLI 143 83.5%
OO3438 SEA → BLI 143 79.0%
OO3438 BLI → SEA 143 77.6%
OO3287 SEA → BLI 141 83.6%
OO3371 SEA → BLI 133 85.5%
OO3371 BLI → SEA 121 79.7%
OO3340 BLI → SEA 119 92.4%
OO3426 BLI → SEA 98 89.5%
OO3496 SEA → BLI 90 82.2%
OO3308 BLI → SEA 69 97.1%
OO3314 BLI → SEA 58 92.9%
OO3288 SEA → BLI 56 94.6%
OO3281 BLI → SEA 45 95.6%
OO3375 BLI → SEA 45 84.4%
OO3468 BLI → SEA 38 73.7%
OO3468 SEA → BLI 38 84.2%
OO3467 BLI → SEA 35 81.8%

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 185 −24.8% 1 84.9%
June 2026 179 −24.8% 1 81.6%
May 2026 186 −21.8% 0 89.2%
April 2026 180 −5.8% 0 92.2%
March 2026 176 −14.1% 4 87.5%
February 2026 159 −22.1% 4 90.6%
January 2026 183 −15.3% 13 86.3%
December 2025 243 +55.8% 5 79.4%
November 2025 173 +5.5% 20 85.5%
October 2025 229 +104.5% 4 82.5%
September 2025 240 0 85.8%
August 2025 246 2 83.7%
July 2025 246 2 82.5%
June 2025 238 0 75.2%
May 2025 238 0 87.0%
April 2025 191 0 85.9%
March 2025 205 2 82.0%
February 2025 204 5 75.5%
January 2025 216 10 87.5%
December 2024 156 8 90.4%
November 2024 164 2 90.9%
October 2024 112 0 88.4%

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