PlainFlights

Route · SLC → RDU · 2020–2025 BTS data

Salt Lake City to Raleigh/Durham

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), SLC to RDU (Salt Lake City to Raleigh/Durham) ranks #4039 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

86.8%
On-time
+7.8 pts
vs US avg
65 min
Delay when late
1,661
Flights
#4039 of 4927
Corpus placement

Cancelled

0.9%

Best Month

Jun 2024 88%

Worst Month

Jul 2024 68%

Distance

1,823 mi

Carriers

1

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2025 38 3 0 1 DL
Nov 2025 30 3 0 0 DL
Oct 2025 30 1 0 0 DL
Sep 2025 30 5 0 0 DL
Aug 2025 41 1 0 1 DL
Jul 2025 60 8 1 1 DL
Jun 2025 53 16 1 0 DL
May 2025 31 3 0 0 DL
Apr 2025 30 3 0 0 DL
Mar 2025 31 2 0 0 DL
Jan 2025 31 2 0 0 DL
Dec 2024 31 4 0 0 DL
Nov 2024 30 3 0 0 DL
Oct 2024 31 5 0 0 DL
Sep 2024 30 4 0 0 DL
Aug 2024 40 10 0 0 DL
Jul 2024 57 18 6 0 DL
Jun 2024 51 6 0 0 DL
May 2024 31 3 0 0 DL
Apr 2024 30 0 0 0 DL
Mar 2024 31 4 0 0 DL
Jan 2024 31 5 0 1 DL
Dec 2023 31 5 0 0 DL
Oct 2023 31 1 0 0 DL

SLC–RDU seasonal on-time pattern

Best: April (94.2%) · weakest: June (80.5%)

75%80%85%90%95% JanMarAprMayJunJulAugSepOctNovDec 84.6%

Strongest calendar month

April

94.2% on-time · ~30 flights/mo

Busiest calendar month

July

~43 flights/mo avg

Weakest calendar month

June

80.5% on-time · ~39 flights/mo

Cancellation Rate

0.9%

8 of 860 flights

Diversion Rate

0.5%

4 of 860 flights

Explore origin & destination

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

SLC - Salt Lake City

Full on-time, delay-cause, and seasonal performance for Salt Lake City, UT.

SLC on-time profile

RDU - Raleigh/Durham

Full on-time, delay-cause, and seasonal performance for Raleigh/Durham, NC.

RDU on-time profile

Compare the two airports

See SLC and RDU side by side on delays, cancellations, and reliability.

Compare SLC vs RDU

Origin-hub reliability standing

Among SLC's stronger departures

SLC → RDU posts a 86.8% on-time rate, landing in the ≥85% band with 54 of 85 BTS-tracked routes leaving Salt Lake City. The same hub also shows 31 mid-band and 0 challenged departures · fleet-wide on-time rank #692 of 4927 (highest on-time = #1).

What the Data Says About SLC to RDU

Salt Lake City to Raleigh/Durham (SLC to RDU) is one of the more dependable pairings in the BTS On-Time Performance dataset: a 86.8% on-time rate across 1,661 flights, with delays that do happen averaging 64.5 minutes. The corridor runs roughly 1,823 miles and is served by 1 carrier. Over the most recent 24 months, 8 of 860 flights were cancelled (0.9%) and 4 diverted (0.5%).

The monthly split is wide on this route: Jun 2024 posted the strongest performance at 88% on-time, while Jul 2024 came in at just 68% - a 20-point swing worth factoring into travel timing.

On the multi-year calendar, SLC–RDU peaks in April at 94.2% on-time while July carries the heaviest traffic (~43 flights per month) ; the softest month is June at 80.5%, a 13.7-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does SLC to RDU rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, SLC to RDU ranks #4039 of 4927 tracked domestic routes by total flights (most flights = #1). That ordinal matches our busiest-routes listing (total_flights DESC). See /methodology#corpus-placement for the exact sort basis.
How often are flights delayed from SLC to RDU? ▼
Flights from Salt Lake City to Raleigh/Durham have a 86.8% on-time rate based on 1,661 flights. The average delay is 64.5 minutes. The best recent month was Jun 2024 with 88% on-time.
What is the cancellation rate for SLC to RDU? ▼
Over the last 24 months, 0.9% of flights on this route were cancelled (8 of 860 flights) and 0.5% were diverted.
How far is the flight from SLC to RDU? ▼
The flight distance from Salt Lake City (SLC) to Raleigh/Durham (RDU) is approximately 1,823 miles. This route is served by 1 carrier.
When is the best time to fly from SLC to RDU? ▼
The best recent month for on-time performance was Jun 2024 (88% on-time). The worst was Jul 2024 (68% on-time). Consider booking during months with historically better performance.

Airports on this route

SLC Airport

Salt Lake City
RDU Airport

Raleigh/Durham
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 SLC–RDU data

SLC–RDU runs 7.8 pts above the national 79% average; the remaining risk is month-to-month swing and carrier mix, not a weak headline rate.

  • Compare SLC and RDU airport profiles: delay causes and top routes differ even on the same corridor. SLC airport
  • If your dates flex, April (94.2% on-time) beats June (80.5%) on this corridor. Seasonal chart
  • 4 other routes post a similar 86.8% 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.

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

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.