Route · GSO → PHL · 2020–2025 BTS data

Greensboro/High Point to Philadelphia

The GSO–PHL corridor (Greensboro/High Point, NC → Philadelphia, PA) runs behind the national average, served by 4 carriers across roughly 365 miles.

Compiled by PlainFlights Editorial, Flight Performance Editorial Team

Data updated 2026-06-13

76.5%
On-time: -2.5 pts
vs US avg: 107 min
Delay when late: 503
Flights

Cancelled

5.6%

Best Month

Apr 2022 90%

Worst Month

Jul 2021 48%

Distance

365 mi

Carriers

Monthly Performance

Recent 24 months of route data.

Period	Flights	Delayed	Cancelled	Diverted	Carriers
Jun 2025	30	10	5	0	OH,YX
Apr 2022	52	5	0	0	OH,YX
Oct 2021	33	7	0	0	OH,YX
Sep 2021	43	11	0	0	OH
Aug 2021	39	14	2	1	OH
Jul 2021	52	27	2	0	OH
Jun 2021	44	14	2	0	OH
Aug 2020	57	8	2	0	OH,YX
Jul 2020	58	6	1	0	OH,YX
Mar 2020	60	7	13	0	MQ
Feb 2020	35	9	1	0	MQ,OH

Cancellation Rate

5.6%

28 of 503 flights

Diversion Rate

0.2%

1 of 503 flights

Explore origin & destination

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

GSO - Greensboro/High Point

Full on-time, delay-cause, and seasonal performance for Greensboro/High Point, NC.

Origin airport →

PHL - Philadelphia

Full on-time, delay-cause, and seasonal performance for Philadelphia, PA.

Destination airport →

Compare the two airports

See GSO and PHL side by side on delays, cancellations, and reliability.

Open comparison tool →

Similar routes

Other BTS-tracked routes with comparable performance or trip length to GSO–PHL.

Routes with a similar on-time rate

MIA → IAH

Miami to Houston

76.5% on-time

MIA → PHL

Miami to Philadelphia

76.5% on-time

AUS → MCO

Austin to Orlando

76.5% on-time

BWI → ALB

Baltimore to Albany

76.5% on-time

Routes of a similar trip length

LAS → TUS

Las Vegas to Tucson

365 mi

TUS → LAS

Tucson to Las Vegas

365 mi

DFW → SGF

Dallas/Fort Worth to Springfield

364 mi

SGF → DFW

Springfield to Dallas/Fort Worth

364 mi

What the Data Says About GSO to PHL

The Greensboro/High Point to Philadelphia corridor (GSO to PHL) posts a 76.5% on-time rate on the lower edge of the average band, based on 503 tracked flights. Late flights run 107.1 minutes behind on average. 4 carriers cover the 365-mile route; over the last 24 months, 28 of 503 flights were cancelled (5.6%) and 0.2% diverted.

The monthly split is wide on this route: Apr 2022 posted the strongest performance at 90% on-time, while Jul 2021 came in at just 48% - a 42-point swing worth factoring into travel timing.

Frequently Asked Questions

How often are flights delayed from GSO to PHL? ▼

Flights from Greensboro/High Point to Philadelphia have a 76.5% on-time rate based on 503 flights. The average delay is 107.1 minutes. The best recent month was Apr 2022 with 90% on-time.

What is the cancellation rate for GSO to PHL? ▼

Over the last 24 months, 5.6% of flights on this route were cancelled (28 of 503 flights) and 0.2% were diverted.

How far is the flight from GSO to PHL? ▼

The flight distance from Greensboro/High Point (GSO) to Philadelphia (PHL) is approximately 365 miles. This route is served by 4 carriers.

When is the best time to fly from GSO to PHL? ▼

The best recent month for on-time performance was Apr 2022 (90% on-time). The worst was Jul 2021 (48% on-time). Consider booking during months with historically better performance.

Flight Guides

Tips and data-driven advice for choosing reliable routes.

How to Choose Reliable Flight Routes

Use delay data to pick flights that arrive on time

Best & Worst Airlines for On-Time Performance

Which carriers consistently outperform peers

Why Flights Get Cancelled

Cancellation causes broken down by data

Explore PlainFlights

GSO Airport

Greensboro/High Point

PHL Airport

Philadelphia

All Routes

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Rankings

Best on-time airports

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.

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 Editorial

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.