Flight number record

DL 1437

Delta Air Lines · Richmond to Atlanta

Route: RIC → ATL
Departs: 15:35
Flights: 298
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s DL 1437, check with Delta Air Lines.

DL 1437 earns an A. Close to nine flights in ten arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 13 points better than the national rate of 77.6%. When something does go wrong the average delay runs an hour and a half. That rests on 298 flights, with a median arrival 16 minutes early.

Set against the rest of the country, DL 1437's record is 13 points better than the US average of 77.6%. That gap is worth roughly 129 fewer late arrivals for every thousand flights.

On time

90.5%

Arrivals under 15 minutes late, of 294 completed flights

Avg delay

89 min

Across delayed arrivals only, not all flights

Cancelled

1.34%

National rate is 1.81%

1 hour+ late

4.4%

National rate is 8.1%

These figures cover 298 flights between July 2025 and June 2026. The median arrival is 16 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.

Schedule

When DL 1437 flies

DL 1437 flies RIC to ATL without a single fixed slot. Its most common scheduled departure was 15:35, used on 31 of 298 flights. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 15:3531 flights10.4%

Scale runs 0% to 100%. Rows with fewer than 30 flights show a dash.

Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.

A 15:35 departure sits in the 2pm–5pm window. Across every US flight scheduled in that window the on-time rate is 72.4%, and DL 1437 runs 18 points better at 90.5%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.

Against the route

DL 1437 next to RIC to ATL

Every carrier on RIC to ATL combined arrived on time 88.7% of the time across 2,693 flights, so DL 1437 is 2 points ahead of it. Delta flew 2,624 flights on the same city pair under all its flight numbers, including this one, and those ran 89.3% on time. Across its whole network Delta Air Lines managed 81.6%, which this flight beats by 9 points.

DL 1437 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
DL 1437thin sample	298	90.5%	89 min	1.34%	A
All Delta Air Lines on RIC–ATL	2,624	89.3%	87 min	1.87%	A
All carriers on RIC–ATL	2,693	88.7%	89 min	1.89%	A
Delta Air Lines, whole network	1,038,570	81.6%	71 min	1.62%	B

Across the year

DL 1437 quarter by quarter

Quarter by quarter DL 1437 held fairly steady: 88.9% in Jul–Sep 2025, 93.3% in Oct–Dec 2025 and 90.7% in Apr–Jun 2026. A spread of 4 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.

Jul–Sep 202592 flights88.9%
Oct–Dec 202592 flights93.3%
Jan–Mar 202628 flights—
Apr–Jun 202686 flights90.7%

Scale runs 80% to 100%. Rows with fewer than 30 flights show a dash.

By weekday, DL 1437 ranged from 86.0% on Monday to 95.3% on Wednesday. With about 43 flights behind each day, a spread of 9 points is inside normal variation, so the day you fly is not worth changing for this flight.

Delay causes

Why DL 1437 runs late

Carriers report a reason for every delay minute they cause, in five DOT categories. The split below is by minutes, not by number of flights, so a handful of very long weather delays weighs as much as many short ones. It covers 2,503 reported delay minutes.

Late-arriving aircraft
40%
National Airspace System
33%
Carrier
27%
Extreme weather
0%

40% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 2,503 reported delay minutes here, that single category outweighs weather by 40 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit. The split is drawn from 2,503 delay minutes reported on DL 1437.

Cancellations sit at 1.34% against a national 1.81%, which is ordinary. Diversions add another 0.00%.

Connections and routes

What a delay on this flight costs

Badly late arrivals are rare here: only 4.4% land an hour or more behind schedule, against 8.1% nationally. Connections built on this flight are about as safe as US domestic connections get, though a cancelled flight still ignores every layover you give it.

DL 1437 is not only a RIC to ATL flight. It also flew ATL to RIC (298 flights, 89.5% on time) often enough to be scored on its own. Airlines attach one number to several legs of an aircraft's day, and each leg keeps its own record here, so check which city pair is on your booking before reading a rate.

One caution: this is a thin sample. 298 flights over twelve months is enough to clear this site's floor but not enough to pin the rate down tightly, and a single bad week moves it by more than a point. Treat the grade as a rough reading.

Other routes flown as DL 1437
Also flown as	Flights	On time	Avg delay	Cancelled	Grade
ATL to RICthin sample	298	89.5%	53 min	1.34%	A

What to do with this

Booking DL 1437

For a booking, DL 1437 has one of the better records a US domestic flight can show: 90.5% on time and 1.34% cancelled. That is a base rate, not a promise about any single day.

Where to go next

A flight number here means Delta Air Lines’s own number as it reports to the DOT. How the figures are computed is on the methodology page.

Source: US DOT Bureau of Transportation Statistics, on-time performance data, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.

Key figures