Direct (nonstop) flights from Baltimore to San Juan

3 airlines fly nonstop from Baltimore Washington International (BWI) to Luis Munoz Marin International (SJU). It's 1,565 miles (2,519 km), about 4h in the air. Operated by Frontier Airlines, Spirit Airlines, Southwest Airlines.

BWI
Baltimore Washington International
🇺🇸 Baltimore, USA
SJU
Luis Munoz Marin International
🇵🇷 San Juan, Puerto Rico
Flight Time
4h
Distance
1,565 mi
2,519 km
CO₂/pax
264 kg
−29 kg vs. layover
Airlines
3
Frontier Airlines +2
Time Diff
Same timezone
Operated by Frontier Airlines Frontier Airlines Spirit Airlines Spirit Airlines Southwest Airlines Southwest Airlines

Route data last updated: May 30, 2026

Airlines with non-stop flights

Frontier Airlines F9 Frontier Airlines
Route
BWI → SJU
Flight Time
4h
Distance
1,565 mi
Spirit Airlines NK Spirit Airlines
Route
BWI → SJU
Flight Time
4h
Distance
1,565 mi
Southwest Airlines WN Southwest Airlines
Route
BWI → SJU
Flight Time
4h
Distance
1,565 mi

Alternative Routes

Other ways to fly from Baltimore to San Juan with one stop · direct emits 264 kg CO₂ per passenger

BWI ORF (Norfolk) SJU
Leg 1: 1h (159 mi) Leg 2: 3h 30m (1,414 mi) Total: ~4h 30m 🍃 293 kg CO₂ (+11% vs. direct)
Leg 1
BWI → ORF
1h · 159 mi
View BWI to ORF flights →
Leg 2
ORF → SJU
3h 30m · 1,414 mi
View ORF to SJU flights →
BWI RIC (Richmond) SJU
Leg 1: 55m (121 mi) Leg 2: 3h 37m (1,481 mi) Total: ~4h 32m 🍃 297 kg CO₂ (+13% vs. direct)
Leg 1
BWI → RIC
55m · 121 mi
View BWI to RIC flights →
Leg 2
RIC → SJU
3h 37m · 1,481 mi
View RIC to SJU flights →
BWI RDU (Raleigh/Durham) SJU
Leg 1: 1h 15m (256 mi) Leg 2: 3h 27m (1,432 mi) Total: ~4h 42m 🍃 314 kg CO₂ (+19% vs. direct)
Leg 1
BWI → RDU
1h 15m · 256 mi
View BWI to RDU flights →
Leg 2
RDU → SJU
3h 27m · 1,432 mi
View RDU to SJU flights →
BWI PUJ (Punta Cana) SJU
Leg 1: 3h 50m (1,504 mi) Leg 2: 59m (155 mi) Total: ~4h 49m 🍃 308 kg CO₂ (+17% vs. direct)
Leg 1
BWI → PUJ
3h 50m · 1,504 mi
View BWI to PUJ flights →
Leg 2
PUJ → SJU
59m · 155 mi
View PUJ to SJU flights →
BWI STT (Saint Thomas) SJU
Leg 1: 4h 5m (1,598 mi) Leg 2: 45m (68 mi) Total: ~4h 50m 🍃 308 kg CO₂ (+17% vs. direct)
Leg 1
BWI → STT
4h 5m · 1,598 mi
View BWI to STT flights →
Leg 2
STT → SJU
45m · 68 mi
View STT to SJU flights →

Frequently Asked Questions

How long is the direct flight from Baltimore to San Juan?

A nonstop flight from Baltimore (BWI) to San Juan (SJU) takes approximately 4 hours. The distance is 1,565 miles (2,519 km).

Which airlines fly nonstop from Baltimore to San Juan?

3 airlines: Frontier Airlines, Spirit Airlines, Southwest Airlines.

Is there a nonstop flight from Baltimore to San Juan?

Yes. 3 airlines: Frontier Airlines, Spirit Airlines, Southwest Airlines.

How far is Baltimore from San Juan?

The flight distance from Baltimore to San Juan is 1,565 miles (2,519 km), measured as the great-circle (shortest air) distance.

What type of aircraft flies from Baltimore to San Juan?

At 4h, this route typically uses narrow-body or mid-range jets — Boeing 737 MAX or Airbus A320neo. Varies by airline.

Do I need a visa to travel from USA to Puerto Rico?

Depends on your passport. Check with the Puerto Rico embassy or an official visa portal before booking — requirements change.

What is the carbon footprint of a flight from Baltimore to San Juan?

Roughly 264 kg CO2 per passenger one-way. That's about the same as driving 1,320 km.

Is the return flight from San Juan to Baltimore also nonstop?

Yes — nonstop flights run both ways. Flight time may differ slightly due to wind patterns.

When is the cheapest time to fly from Baltimore to San Juan?

Midweek flights (Tue/Wed) outside holiday peaks are usually cheapest. 3-6 weeks ahead is a good window for this route. Use "Check Prices" above to compare.

How early should I arrive at Baltimore Washington International for this flight?

3 hours before departure for international flights. You need time for check-in, security, and immigration.