Route · IAD → LGA · 2020–2025 BTS data
Washington to New York
According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), IAD to LGA (Washington to New York) ranks #2393 of 4927 tracked domestic routes by total flights (most flights = #1).
Data updated 2026-06-13
- 77.1%
- On-time
- -1.9 pts
- vs US avg
- 78 min
- Delay when late
- 5,231
- Flights
- #2393 of 4927
- Corpus placement
Cancelled
3.8%
Best Month
Jan 2024 86%
Worst Month
Jun 2025 61%
Distance
229 mi
Carriers
15
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 107 | 32 | 5 | 0 | YX |
| Nov 2025 | 88 | 28 | 13 | 0 | YX |
| Oct 2025 | 99 | 22 | 1 | 0 | YX |
| Sep 2025 | 111 | 19 | 4 | 0 | YX |
| Aug 2025 | 107 | 21 | 4 | 0 | YX |
| Jul 2025 | 43 | 15 | 7 | 0 | YX |
| Jun 2025 | 59 | 23 | 7 | 0 | UA,YX |
| May 2025 | 42 | 12 | 0 | 0 | UA,YX |
| Jan 2025 | 43 | 8 | 3 | 0 | YX |
| Dec 2024 | 123 | 33 | 1 | 0 | UA,YX |
| Nov 2024 | 119 | 34 | 0 | 0 | YX |
| Oct 2024 | 123 | 21 | 0 | 0 | YX |
| Sep 2024 | 105 | 17 | 0 | 0 | YX |
| Aug 2024 | 124 | 37 | 14 | 0 | YX |
| Jul 2024 | 124 | 39 | 7 | 1 | YX |
| Jun 2024 | 116 | 32 | 6 | 0 | YX |
| May 2024 | 121 | 24 | 1 | 0 | YX,UA |
| Apr 2024 | 120 | 20 | 1 | 1 | YX |
| Mar 2024 | 119 | 23 | 0 | 0 | YX |
| Feb 2024 | 101 | 15 | 2 | 0 | YX |
| Jan 2024 | 184 | 26 | 10 | 0 | YX |
| Aug 2023 | 31 | 5 | 0 | 0 | YX |
| Jun 2023 | 36 | 8 | 0 | 0 | YX |
| May 2023 | 42 | 5 | 0 | 0 | 9E |
IAD–LGA seasonal on-time pattern
Best: March (84.0%) · weakest: December (70.2%)
Strongest calendar month
March
84.0% on-time · ~100 flights/mo
Busiest calendar month
December
~164 flights/mo avg
Weakest calendar month
December
70.2% on-time · ~164 flights/mo
Cancellation Rate
3.8%
86 of 2,287 flights
Diversion Rate
0.1%
2 of 2,287 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
IAD - Washington
Full on-time, delay-cause, and seasonal performance for Washington, DC.
IAD on-time profileLGA - New York
Full on-time, delay-cause, and seasonal performance for New York, NY.
LGA on-time profileCompare the two airports
See IAD and LGA side by side on delays, cancellations, and reliability.
Compare IAD vs LGAOrigin-hub reliability standing
Mid-pack among IAD departures
From IAD, this corridor sits with 42 other 75–85% on-time routes out of 58 tracked departures, not the hub's reliability leaders (14 at ≥85%) and not the softest ( 2 below 75%). Destination: New York · fleet on-time rank #4067 of 4927.
Similar routes
Other BTS-tracked routes with comparable performance or trip length to IAD–LGA.
Routes with a similar on-time rate
What the Data Says About IAD to LGA
The Washington to New York corridor (IAD to LGA) posts a 77.1% on-time rate on the lower edge of the average band, based on 5,231 tracked flights. Late flights run 78.3 minutes behind on average. 15 carriers cover the 229-mile route; over the last 24 months, 86 of 2,287 flights were cancelled (3.8%) and 0.1% diverted.
The monthly split is wide on this route: Jan 2024 posted the strongest performance at 86% on-time, while Jun 2025 came in at just 61% - a 25-point swing worth factoring into travel timing.
On the multi-year calendar, IAD–LGA peaks in March at 84.0% on-time while December carries the heaviest traffic (~164 flights per month) ; the softest month is December at 70.2%, a 13.8-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.
Frequently Asked Questions
Where does IAD to LGA rank among US routes by traffic? ▼
How often are flights delayed from IAD to LGA? ▼
What is the cancellation rate for IAD to LGA? ▼
How far is the flight from IAD to LGA? ▼
When is the best time to fly from IAD to LGA? ▼
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 IAD–LGA data
IAD–LGA is mid-pack at 77.1% on-time; month and carrier mix move more than the corridor headline.
- Compare IAD and LGA airport profiles: delay causes and top routes differ even on the same corridor. IAD airport
- If your dates flex, March (84.0% on-time) beats December (70.2%) on this corridor. Seasonal chart
- 4 other routes post a similar 77.1% 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.