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Luis Munoz Marin Intl

$59+ Cheap flights from Detroit (DTT) to Luis Munoz Marin Intl (SJU)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/18. Fares are subject to change and may not be available on all flights or dates of travel.
DTT — SJU
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
1 adult, Economy
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Cheapflights Tip: The best prices from Detroit All airports to San Juan Luis Munoz Marin Intl are usually found in August or September, booked 12 days in advance, depart on a Monday or Tuesday and return on a Thursday

Cheap flight deals from Detroit to Luis Munoz Marin Intl

Discover tips and strategies to find the most affordable flight options for your journey from Detroit (DTT) to Luis Munoz Marin Intl (SJU). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 29, 2025.

Round-trip from

$144
(CheapOair)

One-way from

$59
(Cheapflightsfares)

Popular in

November

Cheapest in

August

Average price

$317

Good round-trip deal

$177 or less

Good one-way deal

$72 or less
From Detroit (DTT) to San Juan Luis Munoz Marin Intl
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One-way flight from Detroit (DTT) to San Juan Luis Munoz Marin Intl
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Highest demand for flights based on searches. 9% potential increase in price ($36 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from Detroit (DTT) to San Juan Luis Munoz Marin Intl.
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Price to beat on a one-way flight from Detroit (DTT) to San Juan Luis Munoz Marin Intl.
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Find flight deals from Detroit to Luis Munoz Marin Intl

Cheapest flights from Detroit to Luis Munoz Marin Intl
Explore the most affordable flight options available from Detroit to Luis Munoz Marin Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

This CheapOair deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/117:00 amDTW - SJU
Nonstop4h 32mSpirit Airlines
Fri 8/224:12 pmSJU - DTW
Nonstop4h 38mSpirit Airlines
Deal found 7/29$144
This Delta deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/98:48 amDTW - SJU
Nonstop4h 27mDelta
Tue 12/163:25 pmSJU - DTW
Nonstop4h 50mDelta
Deal found 7/28$190
This American Airlines deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/16:51 pmDTW - SJU
2 stops16h 20mAmerican Airlines
Sat 10/185:30 amSJU - DTW
1 stop6h 54mAmerican Airlines
Deal found 7/29$199
This CheapOair deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/610:49 amDTW - SJU
Nonstop4h 34mMultiple Airlines
Sun 12/143:55 amSJU - DTW
1 stop14h 28mMultiple Airlines
Deal found 7/28$200

Cheapflights Fare Finder

 
Customize your flight search to find flights from Detroit to Luis Munoz Marin Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 29, 2025.
Use the filters below to find and compare flights from Detroit to San Juan Luis Munoz Marin Intl Airport that are best for you.

Fly from

Detroit

Fly to

Luis Munoz Marin Intl

Route

Depart

Return

Price

DetroitSan Juan

DTW - SJU

DTWSJU

Detroit Metropolitan Wayne County

Mon 8/11

7:00 am-11:32 am

Nonstop4h 32m

San Juan Luis Munoz Marin Intl

Fri 8/22

4:12 pm-8:50 pm

Nonstop4h 38m

$144

DetroitSan Juan

DTW - SJU

DTWSJU

Detroit Metropolitan Wayne County

Tue 9/16

7:04 am-4:17 pm

1 stop9h 13m

San Juan Luis Munoz Marin Intl

Sat 9/20

2:15 pm-6:51 pm

Nonstop4h 36m

$195

DetroitSan Juan

DTW - SJU

DTWSJU

Detroit Metropolitan Wayne County

Mon 8/18

9:40 am-2:17 pm

Nonstop4h 37m

$59

DetroitSan Juan

DTW - SJU

DTWSJU

Detroit Metropolitan Wayne County

Mon 8/18

4:15 pm-11:30 pm

1 stop7h 15m

$100

DetroitSan Juan

DTW - SJU

DTWSJU

Detroit Metropolitan Wayne County

Sat 9/27

8:40 am-12:59 pm

Nonstop4h 19m

$102

DetroitSan Juan

DTW - SJU

DTWSJU

Detroit Metropolitan Wayne County

Sun 10/12

7:10 am-11:54 pm

1 stop16h 44m

$107

DetroitSan Juan

DTW - SJU

DTWSJU

Detroit Metropolitan Wayne County

Sat 8/2

9:52 am-5:03 pm

1 stop7h 11m

$122

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

Best time to book a flight from Detroit to Luis Munoz Marin Intl

Have a flexible travel schedule? Discover the best time to fly to Luis Munoz Marin Intl from Detroit with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Detroit to San Juan Luis Munoz Marin Intl Airport

How far ahead should I book a flight from Detroit to San Juan Luis Munoz Marin Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from Detroit to Luis Munoz Marin Intl. Price data was last updated on July 25, 2025.

Booking 12 days in advance of your planned departure date is, on average, the best time to get cheap flights from Detroit to San Juan Luis Munoz Marin Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Detroit to San Juan Luis Munoz Marin Intl Airport?

Currently, September is the cheapest month in which you can book a flight from Detroit to San Juan Luis Munoz Marin Intl Airport (average of $254). Flying from Detroit to San Juan Luis Munoz Marin Intl Airport in June is currently the most expensive (average of $339). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from DTT to SJU?

Find hourly flight availability from Detroit to Luis Munoz Marin Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 29, 2025.

It’s optimal to fly from Detroit to San Juan Luis Munoz Marin Intl Airport in the evening. By choosing this option you can save up to 55% on the cost of your flight, compared to a flight in the morning.

What is the cheapest day to fly from Detroit to San Juan Luis Munoz Marin Intl Airport?

Use this chart to determine the cheapest time to fly round-trip from Detroit to Luis Munoz Marin Intl. Price data was last updated on July 27, 2025.

Travelers seeking maximum savings on their Detroit to San Juan Luis Munoz Marin Intl Airport flight should consider departing on Sunday at noon when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Detroit to San Juan Luis Munoz Marin Intl Airport

Explore weekly flight availability from Detroit to Luis Munoz Marin Intl. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 29, 2025.

The most flights from DTT to SJU are scheduled on a Monday (3 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (1 on average).

How much does it cost to fly round-trip from Detroit to San Juan Luis Munoz Marin Intl Airport?

What’s the top layover airport for flights from Detroit to San Juan Luis Munoz Marin Intl Airport?

Share of 1-stop round-trip flights from Detroit to San Juan Luis Munoz Marin Intl Airport chosen by Cheapflights users in the past 12 months, using the same layover each way.

Orlando (MCO) – chosen by Cheapflights users on 57% of 1-stop itineraries from Detroit to San Juan Luis Munoz Marin Intl Airport on Cheapflights.

What’s the cheapest layover airport for flights from Detroit to San Juan Luis Munoz Marin Intl Airport?

Average round-trip fare for 1-stop flights from Detroit to San Juan Luis Munoz Marin Intl Airport, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Dallas (DFW) is the most affordable 1-stop option, with an average round-trip price of $204.

What’s the fastest layover option from Detroit to San Juan Luis Munoz Marin Intl Airport?

Shortest average travel time for 1-stop one-way flights from Detroit to San Juan Luis Munoz Marin Intl Airport, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Tampa (TPA) have the shortest average one-way travel time for 1-stop routes: 5h 05m.

Which airport typically offers the quickest layover for flights from Detroit to San Juan Luis Munoz Marin Intl Airport?

Average layover duration for 1-stop one-way flights from Detroit to San Juan Luis Munoz Marin Intl Airport, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Washington, D.C. (IAD) offer the fastest connection on this route, with an average layover time of 1h 27m.

Reviews of airlines servicing Luis Munoz Marin Intl

Get insights into the airlines that provide service to Luis Munoz Marin Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Luis Munoz Marin Intl. Reviews last updated July 29, 2025.
Read reviews from past customers who have flown Southwest, Delta, and American Airlines from Detroit to San Juan Luis Munoz Marin Intl Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,238 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Crew

8.6

Food

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Southwest
8.0
Very good
4,238 reviews
Southwest
8.0
Very good
4,238 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Crew

8.6

Food

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Delta
8.0
Very good
7,977 reviews
Southwest
8.0
Very good
4,238 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Crew

8.6

Food

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,238 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Crew

8.6

Food

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Spirit Airlines
6.3
Okay
8,040 reviews
Southwest
8.0
Very good
4,238 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Crew

8.6

Food

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Frontier
5.9
Fair
3,238 reviews
Southwest
8.0
Very good
4,238 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Crew

8.6

Food

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.

Related info for your journey

Find useful and relevant information for your journey from Detroit to Luis Munoz Marin Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Detroit to San Juan Luis Munoz Marin Intl?

    Detroit All airports (DTT) is the airport you will fly out of if you book a flight from Detroit to San Juan Luis Munoz Marin Intl. You should not have trouble finding flights to San Juan Luis Munoz Marin Intl from All airports; the airport handles an average of 2 outbound flights to San Juan Luis Munoz Marin Intl per day. You should also have plenty of airline options to choose from since 7 airlines have flights from the Detroit airport to San Juan Luis Munoz Marin Intl. It is only a 0.6 mi journey to All airports (DTT) from Detroit’s city center.

  • What are the cheapest airlines flying from Detroit to San Juan Luis Munoz Marin Intl Airport round-trip?

    Spirit Airlines, at $144, was found to be the cheapest airline from Detroit to San Juan Luis Munoz Marin Intl Airport. An alternate airline flying to your destination would be Delta. Spirit Airlines is currently priced 60% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Detroit to San Juan Luis Munoz Marin Intl Airport one-way?

    For one-way options, check prices for Spirit Airlines. According to our data, you can fly for as low as $59. Users have also found prices from $100 and $102 on Southwest and Delta, respectively.

  • What are the most reliable airlines from Detroit to San Juan Luis Munoz Marin Intl Airport?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Detroit to San Juan Luis Munoz Marin Intl Airport on time: Spirit Airlines (83%), Delta (82%), WestJet (82%).

  • What are the cheapest flights from Detroit to San Juan Luis Munoz Marin Intl Airport?

    Looking at all options, your cheapest flight can be booked for $68. While the most popular route (Detroit Metropolitan Wayne County - San Juan Luis Munoz Marin Intl) can be booked for $127 on average our data indicates $182 when flying from Detroit to San Juan Luis Munoz Marin Intl Airport.

  • Where are the most common layover locations when flying from Detroit to San Juan Luis Munoz Marin Intl Airport?

    Detroit to San Juan Luis Munoz Marin Intl Airport flights have a layover in Orlando most of the time.

  • What are some popular things to do or see while on a layover in Orlando?

    Most Orlando visitors opt to spend their time experiencing Walt Disney World Resort, Universal Orlando Resort, and International Drive. Travelers on a layover in Orlando can visit Walt Disney World Resort, Universal Orlando Resort, and International Drive, by traveling 16.2 mi, 10.2 mi, and 9.9 mi, respectively after landing at Orlando. Those on a layover in Orlando in need of a rental car can book one at Orlando for about $35.

  • Where are the least popular layover locations for Detroit to San Juan Luis Munoz Marin Intl Airport flights?

    Detroit to San Juan Luis Munoz Marin Intl Airport flights have a layover in Atlanta the least frequently.

  • Can I find deals for flights from Detroit to Luis Munoz Marin Intl that include hotel bookings?

    Yes. In addition to deals on Detroit to Luis Munoz Marin Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Detroit to Luis Munoz Marin Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Detroit to Luis Munoz Marin Intl.

  • Can I find deals for business class flights from Detroit to Luis Munoz Marin Intl?

    Yes. Cheapflights offers flight deals from Detroit to Luis Munoz Marin Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Detroit to San Juan Luis Munoz Marin Intl Airport?

    Currently, September is the cheapest month in which you can book a flight from Detroit to San Juan Luis Munoz Marin Intl Airport (average of $254). Flying from Detroit to San Juan Luis Munoz Marin Intl Airport in June is currently the most expensive (average of $339). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near San Juan Luis Munoz Marin Intl Airport?

Book flights to San Juan Luis Munoz Marin Intl Airport if you plan to visit one of these locations
Dorado
Fajardo
Rio Grande
Luquillo
Humacao

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Top 7 airlines flying from Detroit to Luis Munoz Marin Intl

Discover the top 7 airlines that operate flights from Detroit to Luis Munoz Marin Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$124Average$168FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$162Average$269FlexibilityNo cancel feeOn-time65%
JetBlueCheapest$250Average$378FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$284Average$562FlexibilityNo cancel feeOn-time71%
DeltaCheapest$324Average$636FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$396Average$578FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$418Average$614FlexibilityNo cancel feeOn-time69%

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