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4 nonstop, 36 with 1 connection, 6 with 2 · ranked by overall best · 30 hidden by your Most reliable time setting (they leave at other times of day) · showing the top 3
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.
16 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 an 81% reliability rating vs 61% for midday departures.
- Southwest trips we compared arrive on time 74% of the time on average, 2 points more often than United, Delta and American (72%).
- Legroom was comparable across the flights we compared (30–31 in), so it didn't set them apart.
6:20 AM5:08 PMSAN → BWI
United · UA 1006 / UA 1093
7h 48m1 stop
1h 39m in LAX
One ticket
90%arrive on time97% connections madeCheck fares- 6:20 AM5:08 PM
SAN → BWI
United · OO 3743 / UA 1093
7h 49m1 stop
1h 26m in LAX
One ticket
90%arrive on time97% 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.
SAN → BWI
San Diego to Baltimore: 1,124 nonstop flights a year
On time (12 months)
81%
Cancelled
1.3%
avg delay 10 min
Best time to leave
After 9 PM
91% on time vs 60% noon to 3 PM
Most reliable airline
Southwest
80% 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.
- Southwest Airlines80%
1,124 flights · 81% on time as flown · 1.3% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM91%
336 flights · avg delay 5 min
- 9 AM to noon75%
134 flights · avg delay 13 min
- Noon to 3 PM60%
240 flights · avg delay 22 min
- 3 to 6 PM63%
49 flights · avg delay 27 min
- 6 to 9 PM85%
61 flights · avg delay 6 min
- After 9 PM91%
304 flights · avg delay 4 min
Best day: Saturday (86%). Worst: Sunday (76%).
Smarter routing
Nearby airports that run more on time
SAN → IAD 87% chance on time
San Diego International Airport to Washington Dulles International Airport · 1,400 flights a year · 45 mi from your airports · yours: 80%
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