Route · BOS → LAX · 2020–2025 BTS data
Boston to Los Angeles
According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), BOS to LAX (Boston to Los Angeles) ranks #235 of 4927 tracked domestic routes by total flights (most flights = #1).
Data updated 2026-06-13
- 80.4%
- On-time
- +1.4 pts
- vs US avg
- 83 min
- Delay when late
- 24,177
- Flights
- #235 of 4927
- Corpus placement
Cancelled
0.4%
Best Month
Jan 2025 88%
Worst Month
Feb 2025 62%
Distance
2,611 mi
Carriers
26
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 381 | 142 | 5 | 1 | B6,DL,AA,UA |
| Nov 2025 | 375 | 81 | 5 | 1 | UA,DL,AA,B6 |
| Oct 2025 | 402 | 116 | 3 | 1 | AA,B6,DL,UA |
| Sep 2025 | 364 | 76 | 0 | 0 | UA,DL,AA,B6 |
| Aug 2025 | 433 | 64 | 0 | 0 | AA,UA,B6,DL |
| Jul 2025 | 439 | 120 | 1 | 0 | AA,B6,DL,UA |
| Jun 2025 | 394 | 78 | 1 | 0 | AA,B6,DL,UA |
| May 2025 | 436 | 61 | 0 | 0 | AA,B6,DL,UA |
| Apr 2025 | 363 | 64 | 0 | 0 | UA,AA,B6,DL |
| Mar 2025 | 356 | 49 | 2 | 0 | AA,B6,DL,UA |
| Feb 2025 | 293 | 112 | 4 | 0 | AA,B6,DL,UA |
| Jan 2025 | 320 | 37 | 0 | 1 | AA,B6,DL,UA |
| Dec 2024 | 372 | 81 | 0 | 0 | AA,B6,DL,UA |
| Nov 2024 | 392 | 64 | 0 | 0 | UA,B6,DL,AA |
| Oct 2024 | 487 | 66 | 0 | 0 | UA,DL,B6,AA |
| Sep 2024 | 439 | 68 | 0 | 0 | UA,AA,B6,DL,NK |
| Aug 2024 | 467 | 111 | 3 | 0 | AA,B6,DL,NK,UA |
| Jul 2024 | 430 | 110 | 8 | 2 | AA,B6,DL,UA |
| Jun 2024 | 415 | 122 | 2 | 1 | AA,B6,DL,UA |
| May 2024 | 401 | 91 | 3 | 1 | AA,B6,DL,UA |
| Apr 2024 | 342 | 67 | 0 | 0 | AA,B6,DL,UA |
| Mar 2024 | 349 | 49 | 0 | 2 | AA,B6,DL,UA |
| Feb 2024 | 284 | 34 | 0 | 0 | AA,B6,DL,UA |
| Jan 2024 | 277 | 50 | 2 | 0 | AA,B6,DL,UA |
BOS–LAX seasonal on-time pattern
Best: November (85.4%) · weakest: December (72.9%)
Strongest calendar month
November
85.4% on-time · ~342 flights/mo
Busiest calendar month
August
~396 flights/mo avg
Weakest calendar month
December
72.9% on-time · ~335 flights/mo
Cancellation Rate
0.4%
39 of 9,211 flights
Diversion Rate
0.1%
10 of 9,211 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
BOS - Boston
Full on-time, delay-cause, and seasonal performance for Boston, MA.
BOS on-time profileLAX - Los Angeles
Full on-time, delay-cause, and seasonal performance for Los Angeles, CA.
LAX on-time profileCompare the two airports
See BOS and LAX side by side on delays, cancellations, and reliability.
Compare BOS vs LAXOrigin-hub reliability standing
Mid-pack among BOS departures
From BOS, this corridor sits with 49 other 75–85% on-time routes out of 60 tracked departures, not the hub's reliability leaders (6 at ≥85%) and not the softest ( 5 below 75%). Destination: Los Angeles · fleet on-time rank #2963 of 4927.
Similar routes
Other BTS-tracked routes with comparable performance or trip length to BOS–LAX.
Routes with a similar on-time rate
What the Data Says About BOS to LAX
24,177 tracked flights put the BOS to LAX pairing (Boston to Los Angeles) at a 80.4% on-time rate, squarely in line with the wider network. Delays that do occur run 83.4 minutes on average. Across the 2,611-mile route and its 26 carriers, the trailing 24 months show 0.4% cancelled and 0.1% diverted (9,211 flights sampled).
The monthly split is wide on this route: Jan 2025 posted the strongest performance at 88% on-time, while Feb 2025 came in at just 62% - a 27-point swing worth factoring into travel timing.
On the multi-year calendar, BOS–LAX peaks in November at 85.4% on-time while August carries the heaviest traffic (~396 flights per month) ; the softest month is December at 72.9%, a 12.5-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.
Frequently Asked Questions
Where does BOS to LAX rank among US routes by traffic? ▼
How often are flights delayed from BOS to LAX? ▼
What is the cancellation rate for BOS to LAX? ▼
How far is the flight from BOS to LAX? ▼
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Airports on this route
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 BOS–LAX data
BOS–LAX is mid-pack at 80.4% on-time; month and carrier mix move more than the corridor headline.
- Compare BOS and LAX airport profiles: delay causes and top routes differ even on the same corridor. BOS airport
- If your dates flex, November (85.4% on-time) beats December (72.9%) on this corridor. Seasonal chart
- 4 other routes post a similar 80.4% 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.
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.