Direct flights from Baltimore to San Diego BWI → SAN
Southwest Airlines flies nonstop from Baltimore (BWI) to San Diego (SAN), several times daily. The flight takes about 5h 14m and covers 2,290 miles (3,686 km). Round-trip fares typically run around $452, with recent bookable fares from $377. Arrivals run on time 78.4% at BWI and 75.8% at SAN — BTS data for the last three months, counting arrivals within 15 minutes of schedule. Fares last checked 30 August 2026.
60-day flexibility overview based on 504 recent fares across the next 60 days
What flexibility is worth here
Flying in October rather than September typically saves $176 on BWI → SAN.
Typical round-trip fare by departure month, across the 5 months we currently track.
How long you stay changes it too
Staying 17+ nights typically costs $120 less than 6–9 nights.
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Departure Schedule typical week
Typical weekly schedule · 25 flights per week (~4 per day) · Updated 52d ago
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Frequently asked questions
Is there a direct flight from Baltimore to San Diego?
Yes, Southwest Airlines operates nonstop flights from Baltimore (BWI) to San Diego (SAN).
Which airlines fly direct from Baltimore to San Diego?
Southwest Airlines operates nonstop flights from Baltimore to San Diego.
How long is the flight from Baltimore to San Diego?
The nonstop flight from Baltimore to San Diego takes ~5h 14m (approximately 3686 km).
How often do direct flights operate from Baltimore to San Diego?
Nonstop flights from Baltimore to San Diego operate multiple daily — 25 flights per week (~4 per day).
What is the on-time performance for flights from Baltimore to San Diego?
Arrivals run on time 78.4% at BWI and 75.8% at SAN — BTS data for the last three months, counting arrivals within 15 minutes of schedule.
What days of the week are there direct flights from Baltimore to San Diego?
Direct flights from Baltimore to San Diego operate every day of the week.
How much is a round-trip flight from Baltimore to San Diego?
Round-trip flights from Baltimore (BWI) to San Diego (SAN) start at $297, with a typical fare around $452. Based on 504 recent fare combinations.
What is the cheapest month to fly from Baltimore to San Diego?
Across the 5 departure months we currently track, October 2026 is the cheapest month to fly round trip from Baltimore to San Diego, with typical fares around $412 — versus about $588 in September 2026, the most expensive.
Does trip length change the round-trip fare from Baltimore to San Diego?
Typical round-trip fares from Baltimore (BWI) to San Diego (SAN) by trip length: a week away (6–9 nights) about $467, around two weeks (10–16 nights) about $392, and a longer stay (17+ nights) about $347. Medians from 504 recent fare combinations.
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Scout — our search agent — priced 401 fares on this route in the past week, cheapest $377 round trip. It hunts nonstop fares from Baltimore every night and pings you when one's worth booking.
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