Find a better flight
US domestic flights only at this time
Filter by
Filters apply to trips matching your advanced settings.
Departing flights
Ranking & search details
2 nonstop, 3 with 1 connection · ranked by overall best · 2 hidden by your Most reliable time setting (they leave at other times of day)
Most reliable time: morning departures (5–11 AM), the window with the best on-time odds for this trip. Turn off “Most reliable” under Departure time in Advanced settings to see every time.
3 matching trips
Why this is our top pick
- This morning flight leaves in the most reliable time of day on this route: its best departures have a 73% reliability rating vs 46% for afternoon departures.
- American trips we compared arrive on time 88% of the time on average, 21 points more often than United (67%).
- Compared with the next-best option (United 2396 on the Boeing 737-700), it arrives on time 2 points more often; it flies a newer plane (about 11 vs 27 years old).
- Legroom was comparable across the flights we compared (30 in), so it didn't set them apart.
10:46 AM4:30 PMBTV → IAD
United · YX 3591 / UA 1992
5h 44m1 stop
2h 38m in EWR
One ticket
60%arrive on time92% connections madeCheck fares
Aircraft and legroom reflect the planes each flight has flown recently. Airlines can swap planes and seat maps change, so check the airline’s seat map when you book.
BTV → IAD
Burlington to Dulles: 408 nonstop flights a year
On time (12 months)
85%
Cancelled
3.7%
avg delay 18 min
Best time to leave
9 AM to noon
92% on time vs 69% 6 to 9 PM
Most reliable airline
United
83% chance on time
Fares open on our travel partner (Aviasales). Pick the flight number you chose here.
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- United Airlines83%
71 flights · 86% on time as flown · 2.9% cancel
- Republic Airways (sold as American Eagle, Delta Connection or United Express)82%
337 flights · 85% on time as flown · 4.0% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM85%
136 flights · avg delay 20 min
- 9 AM to noon92%
148 flights · avg delay 6 min
- Noon to 3 PM85%
56 flights · avg delay 19 min
- 6 to 9 PM69%
68 flights · avg delay 40 min
Best day: Saturday (91%). Worst: Thursday (84%).
Historical odds, not a guarantee. Built from the US DOT Bureau of Transportation Statistics on-time reports (Jun 2025 to May 2026), FAA ground stop and delay program advisories, and 20 years of airport weather observations. Covers US airlines that report to the DOT; schedules are flights operated recently, so confirm times when you book. ATIS Alerts is not affiliated with any airline. Fares are what Aviasales travelers saw in recent searches (USD, one way, 1 adult), not live quotes; the partner site shows the current price. Fare links go to our travel partner and may earn us a commission at no cost to you. Affiliate disclosure