DEN → STLDenver to St Louis

live

Direct flights from Denver (DEN) to St Louis (STL): 18 nonstop departures observed each week across 3 airlines. 77% of the last 13 operated flights arrived within 15 minutes of schedule. The median arrival is 5 minutes late. No cancellations were recorded across the 13 tracked flights. The nonstop covers 1,236 km, an estimated 2 hours 5 minutes in the air. Measured by Pro Flight Search from live flight boards at Denver and St Louis. Updated 17 October 2026 at 17:08 UTC.

Today, DEN → STL

Sat 17 Oct · local times
  1. 06:30 WN1796Southwest Left 06:25 STL est. 10:58 +88In the air · sched 09:30
  2. 09:35 UA652United Airlines Left 09:33 STL est. 12:36In the air · sched 12:40
  3. 11:20 WN1798Southwest Airlines On scheduleGate C42 ·
  4. 13:30 UA1639United Airlines On scheduleGate B20 ·
  5. 15:30 WN4400Southwest Airlines On scheduleGate C41 ·
  6. 15:54 F93302Frontier Airlines On scheduleGate A75 ·
  7. 17:20 WN1567Southwest Airlines On scheduleGate C63 ·
  8. 17:30 UA1422United Airlines On scheduleGate B52 ·
  9. 20:28 UA4733United Airlines On scheduleGate B69 ·

Checked DEN board 11:08 · STL board 10:18

DEN Denver smooth · +0
STL St Louis smooth · +2
1,236 km · ~2h 05m est.
dep bank 05:50–20:4518x weekly
Runs mixed · 3 airlines · 18x weekly · nonstop
77% on time

of the last 13 operated DEN → STL flights arrived within 15 minutes

Median arrival delay is +5 min. 0 of 13 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →

Median arrival+5 minacross the last 13 operated legs
Flight time~2h 05mestimated from route distance
Weekly departures18x3 direct airlines on the leg
Cancelled0.0%recent route rate · 0 of 13

The week

scheduled departures · origin local time
06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Frontier AirlinesSouthwest AirlinesUnited Airlines

Each mark is a scheduled departure at its origin-local time, observed operating in the last 7 days. Today is highlighted.

Who flies it

observed on the boards · 7 days
Frontier AirlinesF9

Flights F93302 16:12 Mo We Fr Sa

Southwest AirlinesWN57% on time

Flights WN1796 05:50 Mo Th Fr Sa · WN4346 06:20 Su · WN301 06:35 Tu We · WN3140 07:10 Mo Th Fr

United AirlinesUA100% on time

Flights UA652 09:35 daily · UA1639 13:30 daily · UA1422 17:30 daily · UA4733 20:28 daily

History

operated legs · board outcomes
10-17UA652dep −2 → arr−4
10-17WN1796dep −5 → arr+88
10-16F93302departed−5
10-16UA1422departed−2
10-16UA1639departed−3
10-16UA4733departed+5
10-16UA652departed−1
10-16WN1725departed+3
10-16WN1796departed+8
10-16WN1798departed+57
10-16WN1806departed+11
10-16WN3140departed+33
10-16WN4400departed+14

Actual board outcomes rather than schedules, paired departure and arrival per flight and day.

Full board history, day by day →

Airports right now

live boards
DENDenver +0 min smooth 🌤 clear · SW 10 kt Full DEN delay board →
STLSt Louis +2 min smooth 🌤 few clouds · N 4 kt Full STL delay board →

Weather lens

Current conditions put the pressure at DEN and STL: 44% odds of a 15+ minute delay and around +10 min expected when it bites, measured from this route's own weather-matched delay history. See live delays → · Weather risk by airport →

How the Denver to St Louis route actually runs

Pro Flight Search records official board updates for nonstop DEN to STL flights through the day: schedules, estimates, gate pushes and actual departures. The verdict above comes from operated flights, so it reflects what this route does rather than what the timetable promises.

Planning around a delay? Live airport delays · Weather delay risk map · Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure

Cite this data

Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.

Suggested citation

Pro Flight Search — Denver (DEN) to St Louis (STL) route reliability, measured from operated flights on official airport boards.

Canonical URL
https://proflightsearch.com/search-flights/DEN-STL
How we measure this →

DEN to STL questions

Is DEN–STL running on time right now?

Smooth skies ahead. Both endpoints currently score the same, route health score 100/100. The airports section above carries the live status and delay window at both ends.

Morning or evening flight on DEN–STL?

Operators schedule morning departures around 05:50 and evening departures around 17:20 from DEN. Earlier flights typically land before destination-airport delays accumulate later in the day; check the STL delay card to confirm conditions when you'd arrive.

How long is the flight from DEN to STL?

Great-circle distance is 1,236 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 117–136 min gate-to-gate on this route.

How often does DEN–STL fly?

3 carriers operate this route, around 76 flights a week between them. Compare carrier days and times in the airline list above.