Route
LAX → BOS
Los Angeles International Airport Boston Logan International Airport
How punctual is this route?
- On-time arrivals
- 76.2%
- Less than 15 minutes late
- Cancelled
- 1.8%
- Of scheduled flights
- Average delay when late
- 84 min
- Flights arriving 15+ minutes late
- Flights tracked
- 4,797
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 35%
- Airline (crew, maintenance, cleaning) 33%
- Air traffic control & airport 29%
- Extreme weather 3%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 73.0% | 363 |
| October 2025 | 72.2% | 403 |
| November 2025 | 80.0% | 376 |
| December 2025 | 76.0% | 380 |
| January 2026 | 75.0% | 373 |
| February 2026 | 77.9% | 344 |
| March 2026 | 76.7% | 389 |
| April 2026 | 76.6% | 364 |
| May 2026 | 82.8% | 400 |
| June 2026 | 81.2% | 453 |
| July 2026 | 70.2% | 483 |
| August 2026 | 74.2% | 469 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data
Airlines on this route
| Airline | Flights | On time | Cancelled | Avg. delay when late |
|---|---|---|---|---|
| JetBlue Airways | 1,642 | 74.0% | 2.1% | 70 min |
| Delta Air Lines | 1,240 | 75.9% | 2.2% | 94 min |
| American Airlines | 1,184 | 74.1% | 1.6% | 98 min |
| United Airlines | 731 | 85.3% | 1.0% | 75 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
DL639
18% late · 365 flights
-
UA1783
18% late · 365 flights
-
AA12
21% late · 364 flights
-
AA2453
22% late · 354 flights
-
UA2210
9% late · 348 flights
-
B6988
22% late · 342 flights
-
DL437
33% late · 342 flights
-
B6288
33% late · 330 flights
-
DL507
16% late · 295 flights
-
B6588
12% late · 167 flights
-
B61388
31% late · 164 flights
-
B6388
28% late · 137 flights
-
B6888
13% late · 137 flights
-
B6188
33% late · 128 flights
-
AA382
28% late · 125 flights
-
B6488
30% late · 110 flights
-
DL2130
36% late · 108 flights
-
DL2166
25% late · 106 flights
-
B6688
33% late · 85 flights
-
AA1805
36% late · 61 flights
-
AA2675
32% late · 40 flights
-
AA3138
30% late · 40 flights
-
B61488
30% late · 37 flights
-
AA1239
35% late · 36 flights
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Headlines found by Google News; stories open on the publisher's site.
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