Cheap flights from Detroit to San Juan

Flight deals from Detroit to San Juan

Below you can see the best deals on flights Detroit — San Juan for upcoming dates. Direct and connecting flights from various airlines — compare prices and choose the right ticket.

The lowest price for the next 2 months is on 7 October, from $215.

Top 10 cheap flights from Detroit to San Juan

About the Detroit — San Juan flight

Looking for cheap flights from Detroit to San Juan? Compare fares from different airlines, check the flight schedule and travel time — and book your Detroit — San Juan ticket online at the best price.

The route has direct flights — around 22 flights per week, flights are operated by Delta, Spirit Airlines, a nonstop flight takes about 4 h 36 min, the distance between the cities is around 3,100 km.

Planning your trip? You may find our San Juan travel guide, how to get from the airport into town and San Juan weather forecast useful. To catch a low fare, use the low-price calendar and the monthly price chart on this page.

from $213Min. price

NovemberCheapest

MayPeak season

YesDirect flights

3,100 kmDistance

4 h 36 minTravel time

2Airlines

22 / wkFlights

Flight schedule from Detroit to San Juan

The table shows direct flights from Detroit to San Juan on the selected date. The flight takes approximately 4 h 36 min. Regular flights are operated by Delta and Spirit Airlines. Departures from Detroit Metropolitan Wayne County Airport airports, arrivals at Luis Muñoz Marín International Airport.

For each flight, the following details are shown: departure time (local), arrival city and airport, flight number and airline, terminal or gate, and status. Click on a flight to open its details and go to ticket search. To view flights on a different day, change the date above the table.

Sat, 12 September

Any time

Last update: 08 Sep 2026

Airline

Flight

Departure

Arrival

Duration

Days

Status

Below is a calendar of the lowest flight ticket prices for Detroit — San Juan by day. Pick a convenient date and instantly see the fare. The cheapest flights on this route start from $213 in November, and the most expensive are around $274 in May. If your travel dates are flexible, the calendar will help you find the best price for your preferred period. To view round-trip fares, switch to the "Round trip" tab above the calendar, select your departure date — and the right-hand calendar will highlight the lowest prices for return flights on each day.

Prices by month

Average one-way fares from Detroit to San Juan by month. Tickets are usually cheapest in September (around $191) and priciest in December (about $300) — use the table and chart below to pick the best time to fly.

Month	Average price	Level	Month	Average price	Level	Month	Average price	Level
Jan	$282	high	May	$236	medium	Sep	$191	low
Feb	$273	high	Jun	$218	medium	Oct	$195	low
Mar	$291	high	Jul	$227	medium	Nov	$227	medium
Apr	$264	high	Aug	$200	low	Dec	$300	high

Some values are estimated based on seasonality.

When to fly

Weather in San Juan: it is warmest in August (up to 30 °C on average) and coolest in February (around 27 °C). The driest month is January.

Tickets are usually cheapest in November and most expensive in May. Compare prices and weather by month in the charts below to pick the best time to fly.

Temperature · San Juan

Dry and wet days · San Juan

Wind speed and direction · San Juan

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How to get the best deal on a Detroit — San Juan ticket

Book ahead: fares for Detroit — San Juan are usually lower 3–8 weeks before departure than at the last minute.
Play with your dates — Tuesday, Wednesday and Saturday departures are often cheaper than Friday and Sunday.
Flights Detroit — San Juan operate on Saturdays — keep that in mind when picking your travel dates.
The cheapest month to fly to San Juan is usually November — plan your trip around it if your dates are flexible.
Compare direct and connecting flights: nonstop is faster, while a connection is sometimes noticeably cheaper.
Watch the low-price calendar and the monthly price trend on this page — they make it easier to catch a good date.
Travelling light? Pick a cabin-baggage-only fare — tickets without checked luggage are noticeably cheaper.
Get to the airport in good time — about 2–3 hours before an international departure and roughly an hour before a domestic one.

Flights on the Detroit — San Juan route are operated by 2 airlines; Delta runs the most flights (around 50% of all flights). Compare carriers, flight shares and schedules below.

DeltaDL
4x/week
WebsiteFleet: 986190M pax/year
- Direct flight DTW → SJU4x/week
  Duration
  4h 34m
  Days
  MTWTFSS
50.0%Open →
Spirit AirlinesNK
4x/week
WebsiteFleet: 20544.1M pax/year
- Direct flight DTW → SJU4x/week
50.0%Open →

Cities and airports on the Detroit — San Juan route

Flights Detroit — San Juan depart from Detroit Metropolitan Wayne County Airport and arrive at Luis Muñoz Marín International Airport. Below are pages for the cities, countries, and airports on the route: airlines, schedules, and travel guides.

Departure

Detroit

DTT

United States

About the city How to get there Weather All about the country United States

Arrival

San Juan

SJU

Puerto Rico

About the city How to get there Weather All about the country Puerto Rico

Departure airports

Detroit Metropolitan Wayne County AirportDTW
About the airport

Arrival airports

Luis Muñoz Marín International AirportSJU
About the airport

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Frequently asked questions about the Detroit — San Juan flight

How long is the flight from Detroit to San Juan?

A nonstop Detroit — San Juan flight takes about 4 h 36 min — the distance between the cities is around 3,100 km.

How far is it from Detroit to San Juan?

The distance from Detroit to San Juan is about 3,100 km, which a nonstop flight covers in around 4 h 36 min.

Are there direct flights from Detroit to San Juan?

Yes, there are nonstop flights Detroit — San Juan — around 22 flights per week.

Which airlines fly from Detroit to San Juan?

Airlines operating Detroit — San Juan include Delta, Spirit Airlines. See the full list with schedules in the "Airlines" section on this page.

Which airports do Detroit — San Juan flights use?

Flights from Detroit depart from Detroit Metropolitan Wayne County Airport, and arrive at Luis Muñoz Marín International Airport. If a city has more than one airport, check which one your ticket uses before you travel.

How much is a ticket from Detroit to San Juan?

The price of a Detroit — San Juan ticket depends on your travel date, season and demand: it is usually cheapest to fly in November, and most expensive in May. Tickets typically cost between $213 and $274. Check the current lowest fare and low-price calendar on this page.

When is the best time to book flights Detroit — San Juan?

Flights Detroit — San Juan are usually cheaper when booked in advance — a few weeks before departure and away from peak dates; the most budget-friendly month to fly is November. Compare prices by month in the price trend chart on this page.

How can I find the cheapest flights from Detroit to San Juan?

To catch a low fare Detroit — San Juan, book a few weeks in advance, keep your dates flexible, and compare airlines and connecting options. The low-price calendar and monthly price chart on this page show the cheapest days and months at a glance: the most budget-friendly month to fly is usually November.

How early should I arrive at the airport?

For international flights, plan to be at the airport about 2–3 hours before departure, and around an hour before a domestic flight. Allow extra time during busy travel seasons and at large hubs, where check-in and security lines can be longer.