Cheap flights from Detroit Metropolitan to Luis Muñoz Marín from $145
Updated 2026-09-08
1933 miles great-circle distance, typically flown in 4h 17m with 5 airlines operating direct service from Detroit Metropolitan (DTW) to Luis Muñoz Marín (SJU). Fares on this corridor stay relatively stable across the year — booking 4–8 weeks ahead and choosing a midweek departure typically secures the best price.
Flying from Detroit Metropolitan
Detroit Metropolitan Wayne County is Delta's principal Midwest hub. Two terminals — McNamara (Delta) and North Terminal (Spirit, AA, UA, others) — are connected airside through the post-security ExpressTram. There is no commuter rail to downtown Detroit; DDOT bus 125 runs from the airport to Rosa Parks Transit Center in around 60 minutes. International long-haul to Europe is dense (Air France, KLM, Lufthansa) and to Asia (Delta direct to Tokyo Narita) — making DTW one of the strongest secondary US gateways for transpacific travel.
Arriving in San Juan
San Juan's Luis Muñoz Marín is the busiest airport in the Caribbean and Puerto Rico's primary international gateway. The airport is 8 km east of Old San Juan; AMA bus T5 runs from the airport, but most travellers use rideshare or taxi (~$25 to Old San Juan). US domestic-status flights (no passport required for US citizens) make San Juan one of the easiest Caribbean destinations from any US hub.
Who flies DTW to SJU?
| Airline | IATA | Flight time | Cabin |
| Delta Air Lines | DL | 4h 17m | Economy |
| Spirit Airlines | NK | 4h 17m | Economy |
| Southwest Airlines | WN | 4h 17m | Economy |
| American Airlines | AA | 4h 17m | Economy |
| United Airlines | UA | 4h 17m | Economy |
5 carriers fly direct on this corridor. Frequencies vary by season — summer and winter holiday peaks see additional flights.
Detroit to San Juan FAQs
Direct flights from Detroit Metropolitan (DTW) to Luis Muñoz Marín (SJU) take approximately 4h 17m for the 1933-mile journey, plus 30–60 minutes of taxi, climb and descent. Total airport-to-airport time depends on cruise winds and air-traffic queueing on approach.
5 carriers operate direct service from Detroit Metropolitan (DTW) to Luis Muñoz Marín (SJU): Delta Air Lines, Spirit Airlines, Southwest Airlines, American Airlines and United Airlines. Frequencies vary by season and carrier — Delta Air Lines typically operates the highest weekly count on this corridor.
No — Puerto Rico is domestic travel for US citizens. A US passport is not required for the 50 states, DC or US territories (Puerto Rico, US Virgin Islands, Guam, American Samoa, Northern Mariana Islands), though Real ID-compliant ID is required at TSA from May 2025.
Luis Muñoz Marín (SJU) is the primary international airport for San Juan. Allow 30–60 minutes for the ground transfer by train, express bus, taxi or rideshare depending on traffic and time of day. See the airport's official website for current train and shuttle timetables.