PlainFlights

Route · PBI → IAD · 2020–2025 BTS data

West Palm Beach/Palm Beach to Washington

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), PBI to IAD (West Palm Beach/Palm Beach to Washington) ranks #4471 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

82.5%
On-time
+3.5 pts
vs US avg
92 min
Delay when late
1,042
Flights
#4471 of 4927
Corpus placement

Cancelled

3.9%

Best Month

Mar 2021 93%

Worst Month

Mar 2022 71%

Distance

859 mi

Carriers

9

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2025 44 8 0 0 UA
Nov 2025 30 6 1 1 UA
Oct 2025 31 6 0 0 UA,YX
Dec 2022 31 4 2 0 YV,UA
May 2022 31 4 1 0 YV
Apr 2022 30 7 1 0 YV
Mar 2022 56 16 2 0 UA,YV,YX
Feb 2022 56 11 0 0 YV,YX,UA
Jan 2022 62 10 11 0 YV,YX
Dec 2021 62 14 3 0 UA,YV,YX
Nov 2021 52 7 0 0 YV,YX,UA
Oct 2021 31 5 1 0 YV,YX
Sep 2021 30 7 1 0 YX
Aug 2021 31 12 1 1 YX
Jul 2021 31 16 0 0 YV,YX
Jun 2021 32 9 1 0 YV,YX
May 2021 58 5 0 0 UA,YV,YX
Apr 2021 52 5 1 0 UA,YV
Mar 2021 59 4 3 0 UA,YV,YX
Feb 2021 48 7 5 0 YV,YX
Jan 2021 54 5 1 0 UA,YV
Dec 2020 39 5 1 0 UA,YV
Aug 2020 31 7 1 0 YV
Apr 2020 30 0 2 0 YV

PBI–IAD seasonal on-time pattern

Best: May (89.9%) · weakest: July (48.4%)

40%50%60%70%80%90%100% JanFebMarAprMayJunJulAugSepOctNovDec 82.4%

Strongest calendar month

May

89.9% on-time · ~45 flights/mo

Busiest calendar month

January

~58 flights/mo avg

Weakest calendar month

July

48.4% on-time · ~31 flights/mo

Cancellation Rate

3.9%

39 of 1,011 flights

Diversion Rate

0.2%

2 of 1,011 flights

Explore origin & destination

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

PBI - West Palm Beach/Palm Beach

Full on-time, delay-cause, and seasonal performance for West Palm Beach/Palm Beach, FL.

PBI on-time profile

IAD - Washington

Full on-time, delay-cause, and seasonal performance for Washington, DC.

IAD on-time profile

Compare the two airports

See PBI and IAD side by side on delays, cancellations, and reliability.

Compare PBI vs IAD

Origin-hub reliability standing

Mid-pack among PBI departures

From PBI, this corridor sits with 15 other 75–85% on-time routes out of 20 tracked departures, not the hub's reliability leaders (2 at ≥85%) and not the softest ( 3 below 75%). Destination: Washington · fleet on-time rank #2161 of 4927.

What the Data Says About PBI to IAD

Bureau of Transportation Statistics records show West Palm Beach/Palm Beach to Washington (PBI to IAD) running a 82.5% on-time rate over 1,042 tracked flights, on the stronger end of a typical domestic pairing. When flights do run late, the average delay is 92.3 minutes. The 859-mile corridor is served by 9 carriers, and over the last 24 months 3.9% of 1,011 flights were cancelled, 0.2% diverted.

The monthly split is wide on this route: Mar 2021 posted the strongest performance at 93% on-time, while Mar 2022 came in at just 71% - a 22-point swing worth factoring into travel timing.

On the multi-year calendar, PBI–IAD peaks in May at 89.9% on-time while January carries the heaviest traffic (~58 flights per month) ; the softest month is July at 48.4%, a 41.5-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does PBI to IAD rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, PBI to IAD ranks #4471 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 PBI to IAD? ▼
Flights from West Palm Beach/Palm Beach to Washington have a 82.5% on-time rate based on 1,042 flights. The average delay is 92.3 minutes. The best recent month was Mar 2021 with 93% on-time.
What is the cancellation rate for PBI to IAD? ▼
Over the last 24 months, 3.9% of flights on this route were cancelled (39 of 1,011 flights) and 0.2% were diverted.
How far is the flight from PBI to IAD? ▼
The flight distance from West Palm Beach/Palm Beach (PBI) to Washington (IAD) is approximately 859 miles. This route is served by 9 carriers.
When is the best time to fly from PBI to IAD? ▼
The best recent month for on-time performance was Mar 2021 (93% on-time). The worst was Mar 2022 (71% on-time). Consider booking during months with historically better performance.

Airports on this route

PBI Airport

West Palm Beach/Palm Beach
IAD Airport

Washington
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 PBI–IAD data

PBI–IAD runs 3.5 pts above the national 79% average; the remaining risk is month-to-month swing and carrier mix, not a weak headline rate.

  • Compare PBI and IAD airport profiles: delay causes and top routes differ even on the same corridor. PBI airport
  • If your dates flex, May (89.9% on-time) beats July (48.4%) on this corridor. Seasonal chart
  • 4 other routes post a similar 82.5% 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.