Route · LGA → PWM · 2020–2025 BTS data
New York to Portland
According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), LGA to PWM (New York to Portland) ranks #1857 of 4927 tracked domestic routes by total flights (most flights = #1).
Data updated 2026-06-13
- 83.1%
- On-time
- +4.1 pts
- vs US avg
- 72 min
- Delay when late
- 6,805
- Flights
- #1857 of 4927
- Corpus placement
Cancelled
3.4%
Best Month
Feb 2024 95%
Worst Month
Oct 2025 65%
Distance
269 mi
Carriers
9
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 76 | 21 | 4 | 0 | YX |
| Nov 2025 | 81 | 20 | 5 | 0 | YX |
| Oct 2025 | 142 | 49 | 4 | 0 | YX |
| Sep 2025 | 86 | 11 | 1 | 0 | YX |
| Aug 2025 | 86 | 11 | 2 | 0 | YX |
| Jul 2025 | 81 | 24 | 10 | 0 | YX |
| Jun 2025 | 91 | 23 | 8 | 0 | YX |
| May 2025 | 96 | 15 | 2 | 0 | YX |
| Apr 2025 | 136 | 21 | 0 | 1 | YX |
| Mar 2025 | 74 | 13 | 0 | 1 | YX |
| Feb 2025 | 47 | 11 | 3 | 0 | YX |
| Jan 2025 | 57 | 10 | 1 | 0 | YX |
| Dec 2024 | 75 | 9 | 0 | 0 | 9E,YX |
| Nov 2024 | 86 | 5 | 0 | 0 | 9E,YX |
| Oct 2024 | 147 | 9 | 0 | 0 | YX,9E |
| Sep 2024 | 151 | 11 | 0 | 3 | YX,9E |
| Aug 2024 | 186 | 35 | 14 | 0 | YX,9E |
| Jul 2024 | 186 | 39 | 11 | 0 | 9E,YX |
| Jun 2024 | 170 | 41 | 5 | 1 | 9E,YX |
| May 2024 | 111 | 9 | 4 | 0 | 9E,YX |
| Apr 2024 | 86 | 11 | 2 | 0 | 9E,YX |
| Mar 2024 | 88 | 7 | 1 | 0 | 9E,YX |
| Feb 2024 | 83 | 4 | 3 | 0 | 9E |
| Jan 2024 | 83 | 16 | 5 | 0 | 9E,YX |
LGA–PWM seasonal on-time pattern
Best: March (88.6%) · weakest: July (79.3%)
Strongest calendar month
March
88.6% on-time · ~103 flights/mo
Busiest calendar month
July
~137 flights/mo avg
Weakest calendar month
July
79.3% on-time · ~137 flights/mo
Cancellation Rate
3.4%
85 of 2,505 flights
Diversion Rate
0.2%
6 of 2,505 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
LGA - New York
Full on-time, delay-cause, and seasonal performance for New York, NY.
LGA on-time profilePWM - Portland
Full on-time, delay-cause, and seasonal performance for Portland, ME.
PWM on-time profileCompare the two airports
See LGA and PWM side by side on delays, cancellations, and reliability.
Compare LGA vs PWMOrigin-hub reliability standing
Mid-pack among LGA departures
From LGA, this corridor sits with 64 other 75–85% on-time routes out of 75 tracked departures, not the hub's reliability leaders (8 at ≥85%) and not the softest ( 3 below 75%). Destination: Portland · fleet on-time rank #1918 of 4927.
Similar routes
Other BTS-tracked routes with comparable performance or trip length to LGA–PWM.
Routes with a similar on-time rate
What the Data Says About LGA to PWM
Bureau of Transportation Statistics records show New York to Portland (LGA to PWM) running a 83.1% on-time rate over 6,805 tracked flights, on the stronger end of a typical domestic pairing. When flights do run late, the average delay is 72.2 minutes. The 269-mile corridor is served by 9 carriers, and over the last 24 months 3.4% of 2,505 flights were cancelled, 0.2% diverted.
The monthly split is wide on this route: Feb 2024 posted the strongest performance at 95% on-time, while Oct 2025 came in at just 65% - a 30-point swing worth factoring into travel timing.
On the multi-year calendar, LGA–PWM peaks in March at 88.6% on-time while July carries the heaviest traffic (~137 flights per month) ; the softest month is July at 79.3%, a 9.3-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.
Frequently Asked Questions
Where does LGA to PWM rank among US routes by traffic? ▼
How often are flights delayed from LGA to PWM? ▼
What is the cancellation rate for LGA to PWM? ▼
How far is the flight from LGA to PWM? ▼
When is the best time to fly from LGA to PWM? ▼
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 LGA–PWM data
LGA–PWM runs 4.1 pts above the national 79% average; the remaining risk is month-to-month swing and carrier mix, not a weak headline rate.
- Compare LGA and PWM airport profiles: delay causes and top routes differ even on the same corridor. LGA airport
- If your dates flex, March (88.6% on-time) beats July (79.3%) on this corridor. Seasonal chart
- 4 other routes post a similar 83.1% 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.