WN4330Denver to Washington
Southwest Airlines flight WN4330 flies from Denver (DEN) to Washington Dulles (IAD), 2,332 km. Over August 2025 to July 2026 it usually arrives about 17 minutes late: 63% of 145 flights arrived within 15 minutes of schedule and 0.7% were cancelled (US Department of Transportation data).
On-time record, last 12 months
Every operation of WN4330, August 2025 to July 2026: 145 flights. Source: US Bureau of Transportation Statistics, public domain.
Routes flown as WN4330
- Denver (DEN) to Washington Dulles (IAD)50 flights
- San Diego (SAN) to San Antonio (SAT)31 flights
- San Diego (SAN) to Las Vegas (LAS)16 flights
- Reno Tahoe (RNO) to San Diego (SAN)13 flights
- Denver (DEN) to San Francisco (SFO)12 flights
- Las Vegas (LAS) to Dallas Love Field (DAL)5 flights
- Phoenix Sky Harbor (PHX) to Denver (DEN)4 flights
- Oklahoma City (OKC) to Orlando (MCO)4 flights
- Pensacola (PNS) to St. Louis (STL)4 flights
- Nashville (BNA) to Baltimore (BWI)1 flights
Other flights from Denver to Washington
More about Denver (DEN) and Washington Dulles (IAD).
Embed this on your site
A live badge for travel blogs, forums and trip reports. It updates as new data comes in, and links back here for the full stats.
<a href="https://tripstow.com/flights/wn4330" title="WN4330 is on time 63% of the time on TripStow"><img src="https://tripstow.com/badge/flights/wn4330.svg" alt="WN4330 is on time 63% of the time" width="360" height="88" loading="lazy"></a>
<a href="https://tripstow.com/flights/wn4330" title="WN4330 is on time 63% of the time on TripStow"><img src="https://tripstow.com/badge/flights/wn4330.svg?theme=light" alt="WN4330 is on time 63% of the time" width="360" height="88" loading="lazy"></a>[](https://tripstow.com/flights/wn4330)Flying soon?
Forward your booking to TripStow and get your trip built for you, with check-in reminders, punctuality for every flight and a map of everywhere you have been.
Start free