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Route · BUR → SEA · 2020–2025 BTS data

Burbank to Seattle

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), BUR to SEA (Burbank to Seattle) ranks #1527 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

83.9%
On-time
+4.9 pts
vs US avg
61 min
Delay when late
8,055
Flights
#1527 of 4927
Corpus placement

Cancelled

2.2%

Best Month

Sep 2025 92%

Worst Month

May 2024 68%

Distance

937 mi

Carriers

4

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2025 143 26 2 1 AS
Nov 2025 127 29 2 1 AS
Oct 2025 131 25 5 1 AS
Sep 2025 127 10 2 0 AS
Aug 2025 140 33 4 0 AS
Jul 2025 149 38 8 0 AS
Jun 2025 142 44 3 0 AS
May 2025 148 36 1 2 AS,OO
Apr 2025 148 32 1 0 OO,AS
Mar 2025 129 16 0 3 AS,OO
Feb 2025 99 13 7 0 AS
Jan 2025 116 19 2 1 AS
Dec 2024 131 22 1 0 AS,OO
Nov 2024 124 14 0 2 OO,AS
Oct 2024 126 14 2 0 AS
Sep 2024 150 34 2 5 AS
Aug 2024 143 34 2 1 AS
Jul 2024 155 40 4 1 AS
Jun 2024 133 39 3 0 AS,OO
May 2024 120 38 1 1 AS
Apr 2024 124 14 1 0 AS
Mar 2024 124 37 0 0 AS
Feb 2024 104 12 2 0 AS
Jan 2024 117 20 13 0 AS

BUR–SEA seasonal on-time pattern

Best: September (87.9%) · weakest: December (80.1%)

78%80%82%84%86%88%90% JanFebMarAprMayJunJulAugSepOctNovDec 80.1%

Strongest calendar month

September

87.9% on-time · ~124 flights/mo

Busiest calendar month

August

~125 flights/mo avg

Weakest calendar month

December

80.1% on-time · ~118 flights/mo

Cancellation Rate

2.2%

68 of 3,150 flights

Diversion Rate

0.6%

19 of 3,150 flights

Explore origin & destination

On-time and delay data for the airports this route connects.

BUR - Burbank

Full on-time, delay-cause, and seasonal performance for Burbank, CA.

BUR on-time profile

SEA - Seattle

Full on-time, delay-cause, and seasonal performance for Seattle, WA.

SEA on-time profile

Compare the two airports

See BUR and SEA side by side on delays, cancellations, and reliability.

Compare BUR vs SEA

Origin-hub reliability standing

Mid-pack among BUR departures

From BUR, this corridor sits with 12 other 75–85% on-time routes out of 21 tracked departures, not the hub's reliability leaders (8 at ≥85%) and not the softest ( 1 below 75%). Destination: Seattle · fleet on-time rank #1602 of 4927.

What the Data Says About BUR to SEA

Bureau of Transportation Statistics records show Burbank to Seattle (BUR to SEA) running a 83.9% on-time rate over 8,055 tracked flights, on the stronger end of a typical domestic pairing. When flights do run late, the average delay is 60.5 minutes. The 937-mile corridor is served by 4 carriers, and over the last 24 months 2.2% of 3,150 flights were cancelled, 0.6% diverted.

The monthly split is wide on this route: Sep 2025 posted the strongest performance at 92% on-time, while May 2024 came in at just 68% - a 24-point swing worth factoring into travel timing.

On the multi-year calendar, BUR–SEA peaks in September at 87.9% on-time while August carries the heaviest traffic (~125 flights per month) ; the softest month is December at 80.1%, a 7.8-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does BUR to SEA rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, BUR to SEA ranks #1527 of 4927 tracked domestic routes by total flights (most flights = #1). That ordinal matches our busiest-routes listing (total_flights DESC). See /methodology#corpus-placement for the exact sort basis.
How often are flights delayed from BUR to SEA? ▼
Flights from Burbank to Seattle have a 83.9% on-time rate based on 8,055 flights. The average delay is 60.5 minutes. The best recent month was Sep 2025 with 92% on-time.
What is the cancellation rate for BUR to SEA? ▼
Over the last 24 months, 2.2% of flights on this route were cancelled (68 of 3,150 flights) and 0.6% were diverted.
How far is the flight from BUR to SEA? ▼
The flight distance from Burbank (BUR) to Seattle (SEA) is approximately 937 miles. This route is served by 4 carriers.
When is the best time to fly from BUR to SEA? ▼
The best recent month for on-time performance was Sep 2025 (92% on-time). The worst was May 2024 (68% on-time). Consider booking during months with historically better performance.

Airports on this route

BUR Airport

Burbank
SEA Airport

Seattle
Data source

Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.

Read our methodology - how this data is sourced, computed, and verified.

Using BUR–SEA data

BUR–SEA runs 4.9 pts above the national 79% average; the remaining risk is month-to-month swing and carrier mix, not a weak headline rate.

  • Compare BUR and SEA airport profiles: delay causes and top routes differ even on the same corridor. BUR airport
  • If your dates flex, September (87.9% on-time) beats December (80.1%) on this corridor. Seasonal chart
  • 4 other routes post a similar 83.9% on-time rate; compare before you commit to this pairing. Similar routes

On-time rate reflects the BTS historical average across all reporting carriers on this origin–destination pair, not any single flight or booking recommendation.

Data sourced from U.S. Department of Transportation Bureau of Transportation Statistics (BTS) On-Time Performance data. See our methodology for details. Retrieved and formatted by PlainFlights

Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.