tailodds FORECAST
Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026

Dulles → Denver via Atlanta: arrives on time 57%

  1. 17:51 IAD → 19:54 ATL
    DL 1695 · Delta · 2h 08m · 74% on time, 2.0% cancelled
  2. 1h 00m layover in Atlanta (ATL) · 45 min minimum on one ticket
  3. 20:54 ATL → 22:12 DEN
    DL 493 · Delta · 3h 18m · 79% on time, 0.4% cancelled

Total trip 6h 21m, scheduled departure to arrival (Denver is 2 h behind Dulles). Times are local. Both flew on 27 of the last 56 days.

Makes the connection74%The first flight arrived more than 15 minutes late on 26% of the days it flew: too late for the 45-minute minimum connection on a 1h 00m layover.
Arrives on time57%First flight not cancelled (2.0% are) × connection made (74%) × second flight not cancelled (0.4% are) and within 15 minutes (79%).
Total trip6h 21mIAD 17:51 to DEN 22:12, layover included

Tight connection: often missed. The first flight is late enough to miss it on more than 1 day in 4.

Not yet counted: the second flight also leaving late (which helps), gate-to-gate distance at the hub, and rebooking after a missed connection.