Cheap flights from Detroit Wayne County to San Juan

Compare Detroit Wayne County to San Juan flight deals

Find the cheapest month or even day of the year to fly to San Juan

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Flight deals from Detroit Wayne County to San Juan

Looking for a cheap last-minute deal or the best return flight from Detroit Wayne County Airport to San Juan? If you want to travel next month, return fares start from $427. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Detroit Wayne County to San Juan

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Detroit Wayne County to San Juan flights are currently cheapest in July.

Direct flights from Detroit Wayne County to San Juan

Detroit to San Juan: Flight information

The things to know before you go.
Cheapest flight found$152
Cheapest month to flyAugust
Average flight time4 hrs, 25 mins
Most popular airlineDelta
Average flights per week28

Finding cheap flights from Detroit Wayne County to San Juan: Frequently asked questions

There are 6 airports in San Juan: San Juan Isla Grande, San Juan Luis Munoz Marin, Roosevelt Roads, Ponce, Vieques, and Culebra.
The best price we found for a return flight from Detroit Wayne County to San Juan is $303. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
4 hours and 25 minutes is the average flight time from Detroit Wayne County to San Juan.
Delta and WestJet fly direct from Detroit Wayne County to San Juan.
As of May 2026, there are 14 flights per week flying from Detroit Wayne County to San Juan.
The cheapest month to fly from Detroit Wayne County to San Juan is usually August.
If you're flying from Detroit Wayne County Airport, the cheapest airport near San Juan is San Juan Luis Munoz Marin – which is 11.3 km away from the centre of San Juan. We've found flights into this airport from $303.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Detroit Wayne County Airport to San Juan on Thursday, 13 August 2026.
Yes – the average flight time is 4 hours and 25 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to San Juan but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to San Juan is around 40 days in advance, so don’t leave your flight to the last minute.
In May, the average temperature is usually around 27°C. August is typically the warmest month in San Juan, when it usually averages around 29°C. You can expect the least rain in February. The coldest month is January, with temperatures averaging 23°C. The rainiest month is September.
Currently, Frontier Airlines and Delta offer the cheapest flight tickets to San Juan.

Travelling from Detroit Metropolitan Wayne County Airport (DTW) to San Juan: what you need to know

  • Hop on a direct flight from Detroit Metropolitan Wayne County Airport to San Juan and you'll be travelling for an average of 4 hours 50 minutes.

  • Detroit Metropolitan Wayne County Airport is located in Detroit. Based in the UTC-4 timezone, San Juan is one hour ahead of Detroit.

  • Detroit Metropolitan Wayne County Airport (DTW) to Luis Munoz Marin International Airport (SJU) is the most traveled route. When booking your flight, you can choose from six weekly services between DTW and SJU.

  • Give yourself enough time to catch your DTW to San Juan flight. Generally, it's best to arrive at least two hours before international departures and an hour ahead for domestic flights.

  • During popular months such as July, it's a good idea to get to the airport even earlier. Arrive two hours before a domestic departure and four hours ahead of an international flight whenever you're travelling during peak periods in general.

  • Begin your journey at DTW and fly straight to Luis Munoz Marin International Airport (SJU). That's where you can expect to land when searching for Detroit Metropolitan Wayne County Airport to San Juan tickets.

  • Book your favourite seat with Delta Air Lines. This popular carrier operates direct flights from Detroit Metropolitan Wayne County Airport to San Juan.

  • Consider adding a stopover to potentially save on your plane ticket from DTW to San Juan. Just deselect 'Direct flights only' during your search. Break up your trip (and maybe save some cash) by stopping at one of these airports:

    • Charlotte Douglas International Airport (CLT)

    • Washington Dulles International Airport (IAD)

    • Baltimore Washington International Airport (BWI)

  • The journey from central Detroit to DTW takes about 1 hour by public transport. If you ride-share, drive or get a taxi, you'll cover the 29 kilometres in 30 minutes or so, depending on traffic.

  • Planning to catch an early flight from Detroit Metropolitan Wayne County Airport to San Juan? Avoid rushing to the airport (and get some extra shut-eye) by choosing one of these stays near DTW:

  • Of the departures from Detroit Metropolitan Wayne County Airport, 74% arrive on time at their destination.

  • You'll find DTW at 1 Detroit Metro Airport.

How to find the cheapest flights from Detroit Metropolitan Wayne County Airport (DTW) to San Juan

  • $152 is currently the lowest price for a one-way Detroit Metropolitan Wayne County Airport to San Juan flight. Return plane tickets start at $303. These prices may change based on demand.

  • Booking in advance is often the key to finding a cheap flight from DTW to San Juan. Fares tend to rise as demand increases, so the closer you get to departure, the more you'll likely pay.

  • Scoring cheap tickets from Detroit Metropolitan Wayne County Airport to San Juan is more likely if you can be flexible with your dates. Use the 'Whole month' search function to get the lowest fares throughout the month and score a sweet deal.

  • You don't need to check every day to find out if fares have dropped when you create a Price Alert. We'll let you know when there's an extra saving on cheap flights from DTW to San Juan.

  • Tailor your flights with filters. Pick your preferred departure and arrival times, total journey duration and airlines. You can also sort results by 'Fastest,' 'Best' or 'Cheapest' flights from Detroit Metropolitan Wayne County Airport to San Juan.

Airports in San Juan

Luis Munoz Marin International Airport (SJU)

  • Luis Munoz Marin International Airport (SJU) to the centre of San Juan takes around 20 minutes to reach by car. The centre is roughly 11 kilometres away.

  • If you're using public transport, expect a journey time of around 1 hour.

  • If you have a late flight from Detroit Metropolitan Wayne County Airport to San Juan, nothing beats the convenience of staying near the terminal. Grab your suitcases from the carousel and then be showered and sleeping soon after at one of these hotels near SJU:

  • For the lowest price, book your vehicle from Luis Munoz Marin International Airport about two weeks ahead of your flight from DTW to San Juan.

Best time to go to San Juan

  • It's time to work out your travel dates for your flight from Detroit Metropolitan Wayne County Airport to San Juan. March is the busiest month for a trip to San Juan. If you prefer a more relaxed atmosphere, go in December.

  • Before booking a Detroit Metropolitan Wayne County Airport to San Juan plane ticket, think about what kind of weather you prefer. August is the warmest month in San Juan, with temperatures ranging from 24ºC (75ºF) to 32ºC (90ºF).

  • If you like cooler conditions, look for a cheap ticket from DTW to San Juan in February when temperatures average between 21ºC (70ºF) and 28ºC (82ºF).

More about San Juan

  • Start your San Juan trip right by choosing the perfect place to stay. After booking your flight from Detroit Metropolitan Wayne County Airport to San Juan, explore our selection of accommodation options including:

  • There are so many things to explore in this city it can be hard to know where to begin. Esperanza Beach, Balneario El Escambron and Escambron Green are top sights which should be on any good San Juan itinerary.

Explore more of Puerto Rico

  • You've visited San Juan, now it's time to discover other parts of Puerto Rico. Journey about 113 kilometres west to Aguadilla to tick off its leading attractions. From Silla Aguadilla to Bridges Surf Beach and Playa Rompe Olas, there's plenty to keep you on the go.

  • If you're eager to discover another side of Puerto Rico, consider Isabela, roughly 105 kilometres west of San Juan. Playa montones, Shore Island Beach and Guajataca Forest Reserve are among the biggest draws.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.