HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
San Juan

$102+ Cheap flights from Detroit Metropolitan Wayne County Airport (DTW) to San Juan

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 1/1. Fares are subject to change and may not be available on all flights or dates of travel.
DTW — SJU
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Detroit to San Juan with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Detroit Metropolitan Wayne County to San Juan are usually found in September or August, booked 30 days in advance, depart on a Monday or Friday and return on a Thursday

Cheap flight deals from Detroit to San Juan

Cheapest flights from Detroit to San Juan
Explore the most affordable flight options available from Detroit to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

This CheapOair deal was found by Cheapflights users on 12/16. 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 12/227:45 amDTW - SJU
1 stop13h 20mSpirit Airlines
Fri 1/95:50 pmSJU - DTW
1 stop15h 06mSpirit Airlines
Deal found 12/16$246
This Mytrip deal was found by Cheapflights users on 12/17. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/247:22 pmDTW - SJU
1 stop14h 11mSpirit Airlines
Wed 12/3111:38 amSJU - DTW
1 stop10h 54mSpirit Airlines
Deal found 12/17$249
This Priceline deal was found by Cheapflights users on 12/17. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/307:22 pmDTW - SJU
1 stop14h 11mMultiple Airlines
Wed 1/77:05 pmSJU - DTW
1 stop16h 06mMultiple Airlines
Deal found 12/17$254
This Cheapflightsfares deal was found by Cheapflights users on 12/15. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/306:40 pmDTW - SJU
1 stop16h 18mSpirit Airlines
Wed 1/712:53 pmSJU - DTW
1 stop12h 49mSpirit Airlines
Deal found 12/15$259
This Priceline deal was found by Cheapflights users on 12/17. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2510:49 amDTW - SJU
1 stop12h 48mMultiple Airlines
Wed 12/3111:38 amSJU - DTW
1 stop10h 54mMultiple Airlines
Deal found 12/17$261
This Orbitz deal was found by Cheapflights users on 12/15. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/222:43 pmDTW - SJU
1 stop16h 56mFrontier
Sun 1/1110:47 pmSJU - DTW
1 stop20h 25mFrontier
Deal found 12/15$268
This Super.com deal was found by Cheapflights users on 12/17. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2111:39 amDTW - SJU
1 stop10h 36mFrontier
Thu 12/257:00 amSJU - DTW
1 stop12h 09mFrontier
Deal found 12/17$269
This Priceline deal was found by Cheapflights users on 12/15. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/297:01 pmDTW - SJU
1 stop23h 41mFrontier
Wed 1/79:23 pmSJU - DTW
1 stop22h 15mFrontier
Deal found 12/15$273
This Priceline deal was found by Cheapflights users on 12/15. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/237:45 amDTW - SJU
1 stop13h 20mMultiple Airlines
Mon 12/299:06 pmSJU - DTW
1 stop19h 41mMultiple Airlines
Deal found 12/15$279
This Priceline deal was found by Cheapflights users on 12/16. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/192:43 pmDTW - SJU
1 stop16h 56mFrontier
Tue 12/239:49 amSJU - DTW
1 stop28h 55mFrontier
Deal found 12/16$284
This Gotogate deal was found by Cheapflights users on 12/17. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2111:39 amDTW - SJU
1 stop10h 36mMultiple Airlines
Tue 12/236:28 pmSJU - DTW
1 stop6h 31mMultiple Airlines
Deal found 12/17$286

Find flight deals from Detroit to San Juan

Discover tips and strategies to find the most affordable flight options for your journey from Detroit (DTW) to San Juan (PR1). 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 December 18, 2025.

Round-trip from

$208
(Kiwi.com)

One-way from

$102
(Cheapflightsfares)

Popular in

December

Cheapest in

September

Average price

$567
From Detroit Metropolitan Wayne County to San Juan
Search Deals
One-way flight from Detroit Metropolitan Wayne County to San Juan
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($76 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Detroit to San Juan 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 December 18, 2025.
Use the filters below to find and compare flights from Detroit Metropolitan Wayne County Airport to San Juan that are best for you.

Fly from

Detroit

Fly to

San Juan

Route

Depart

Return

Price

DetroitSan Juan

DTW - SJU

DTWSJU

Detroit Metropolitan Wayne County

Mon 2/23

8:35 am-2:00 pm

Nonstop4h 25m

San Juan Luis Munoz Marin Intl

Tue 3/3

7:00 am-3:04 pm

1 stop9h 04m

$325

DetroitSan Juan

DTW - SJU

DTWSJU

Detroit Metropolitan Wayne County

Tue 1/20

8:43 am-2:10 pm

Nonstop4h 27m

San Juan Luis Munoz Marin Intl

Wed 1/28

7:00 am-3:09 pm

1 stop9h 09m

$325

DetroitSan Juan

DTW - SJU

DTWSJU

Detroit Metropolitan Wayne County

Wed 2/25

12:21 pm-11:58 pm

1 stop10h 37m

San Juan Luis Munoz Marin Intl

Wed 3/4

3:10 pm-7:05 pm

Nonstop4h 55m

$383

DetroitSan Juan

DTW - SJU

DTWSJU

Detroit Metropolitan Wayne County

Mon 4/13

8:25 am-12:50 pm

Nonstop4h 25m

San Juan Luis Munoz Marin Intl

Fri 4/17

7:00 am-3:03 pm

1 stop8h 03m

$391

DetroitSan Juan

DTW - SJU

DTWSJU

Detroit Metropolitan Wayne County

Mon 2/23

8:35 am-2:00 pm

Nonstop4h 25m

San Juan Luis Munoz Marin Intl

Thu 3/5

3:10 pm-7:05 pm

Nonstop4h 55m

$398

DetroitSan Juan

DTW - SJU

DTWSJU

Detroit Metropolitan Wayne County

Tue 2/24

12:21 pm-11:58 pm

1 stop10h 37m

San Juan Luis Munoz Marin Intl

Wed 3/4

3:10 pm-7:05 pm

Nonstop4h 55m

$403

DetroitSan Juan

DTW - SJU

DTWSJU

Detroit Metropolitan Wayne County

Tue 4/14

8:25 am-12:50 pm

Nonstop4h 25m

San Juan Luis Munoz Marin Intl

Mon 4/20

1:50 pm-6:44 pm

Nonstop4h 54m

$406

DetroitSan Juan

DTW - SJU

DTWSJU

Detroit Metropolitan Wayne County

Wed 1/21

8:43 am-2:10 pm

Nonstop4h 27m

San Juan Luis Munoz Marin Intl

Wed 1/28

3:20 pm-7:15 pm

Nonstop4h 55m

$410

DetroitSan Juan

DTW - SJU

DTWSJU

Detroit Metropolitan Wayne County

Tue 1/20

8:43 am-2:10 pm

Nonstop4h 27m

San Juan Luis Munoz Marin Intl

Tue 1/27

3:20 pm-7:15 pm

Nonstop4h 55m

$410

DetroitSan Juan

DTW - SJU

DTWSJU

Detroit Metropolitan Wayne County

Sat 2/21

12:50 pm-11:55 pm

1 stop10h 05m

San Juan Luis Munoz Marin Intl

Wed 3/4

5:40 am-3:30 pm

2 stops10h 50m

$415

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Showing 1-10 of 22 results
1
2
3

Best time to book a flight from Detroit to San Juan

Have a flexible travel schedule? Discover the best time to fly to San Juan 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 Metropolitan Wayne County Airport to San Juan

How far ahead should I book a flight from Detroit Metropolitan Wayne County Airport to San Juan?

Use this chart to determine the optimal time to book a round-trip flight from Detroit to San Juan. Price data was last updated on December 12, 2025.

Booking 30 days in advance of your planned departure date is, on average, the best time to get cheap flights from Detroit Metropolitan Wayne County Airport to San Juan. 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 Metropolitan Wayne County Airport to San Juan?

Currently, August is the cheapest month in which you can book a flight from Detroit Metropolitan Wayne County Airport to San Juan (average of $132). Flying from Detroit Metropolitan Wayne County Airport to San Juan in April is currently the most expensive (average of $212). 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 DTW to SJU?

Find hourly flight availability from Detroit to San Juan. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 18, 2025.

It’s typically best to fly out from Detroit Metropolitan Wayne County Airport to San Juan in the evening. Doing so could potentially save you 40% on the flight price compared to flying in the morning, which is usually more expensive.

What is the cheapest day to fly from Detroit Metropolitan Wayne County Airport to San Juan?

Use this chart to determine the cheapest time to fly round-trip from Detroit to San Juan. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Detroit Metropolitan Wayne County Airport to San Juan flight should consider departing on Monday evenings when fares are most often at their lowest. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost to fly round-trip from Detroit Metropolitan Wayne County Airport to San Juan?

Reviews of airlines servicing San Juan

Get insights into the airlines that provide service to San Juan. 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 San Juan. Reviews last updated December 18, 2025.
Peruse reviews from past customers who have flown with Southwest, Delta, and American Airlines from Detroit Metropolitan Wayne County Airport to San Juan to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
7.9
Good
4,250 reviews

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

7.9

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Southwest
7.9
Good
4,250 reviews
Southwest
7.9
Good
4,250 reviews

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

7.9

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Delta
7.9
Good
8,005 reviews
Southwest
7.9
Good
4,250 reviews

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

7.9

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
American Airlines
7.2
Good
11,054 reviews
Southwest
7.9
Good
4,250 reviews

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

7.9

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Spirit Airlines
6.3
Okay
8,190 reviews
Southwest
7.9
Good
4,250 reviews

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

7.9

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Frontier
5.8
Fair
3,081 reviews
Southwest
7.9
Good
4,250 reviews

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

7.9

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Related info for your journey

Find useful and relevant information for your journey from Detroit to San Juan. 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?

    Located just 17.3 mi from the city center, Detroit Metropolitan Wayne County is the airport most travelers will use when flying to San Juan from Detroit. Booking flights from Detroit Metropolitan Wayne County (DTW) to San Juan should be relatively easy as there are 0 daily outbound flights to San Juan from 7 different airlines.

  • How long is the flight from Detroit Metropolitan Wayne County Airport to San Juan?

    Delta can get you from Detroit Metropolitan Wayne County Airport to San Juan in just under 4h 25m. Your travel time will be generally consistent. The distance from Detroit Metropolitan Wayne County Airport to San Juan is about 1932 mi. Most flights are nonstop.

  • What are the cheapest airlines flying from Detroit Metropolitan Wayne County Airport to San Juan round-trip?

    Flying on Frontier is currently your cheapest option to San Juan, with prices starting at $84. Additional round-trip tickets that might be worth considering are offered by Spirit Airlines and Delta, with the lowest prices starting at $139 and $208, respectively. You may be able to fly from Detroit Metropolitan Wayne County Airport to San Juan for 77% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Detroit Metropolitan Wayne County Airport to San Juan one-way?

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $65. However, be on the lookout for offers from Spirit Airlines and JetBlue, as they are both options that can get you from Detroit Metropolitan Wayne County Airport to San Juan for a low price.

  • What are the cheapest flights from Detroit Metropolitan Wayne County Airport to San Juan?

    On average you can expect to pay $476 for a flight from Detroit Metropolitan Wayne County Airport to San Juan. The cheapest flight overall is $173 while the most popular route, (Detroit Metropolitan Wayne County - San Juan Luis Munoz Marin Intl) is currently priced at $151.

  • Can I find deals for flights from Detroit to San Juan that include hotel bookings?

    Yes. In addition to deals on Detroit to San Juan flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Detroit to San Juan?

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

  • Can I find deals for business class flights from Detroit to San Juan?

    Yes. Cheapflights offers flight deals from Detroit to San Juan 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 Metropolitan Wayne County Airport to San Juan?

    Currently, August is the cheapest month in which you can book a flight from Detroit Metropolitan Wayne County Airport to San Juan (average of $132). Flying from Detroit Metropolitan Wayne County Airport to San Juan in April is currently the most expensive (average of $212). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Detroit to San Juan

See prices for flight routes from nearby airports that may be better suited for you.
Detroit to Luis Munoz Marin Intl flights
Detroit to Aguadilla flights
Detroit to Culebra flights
Detroit to Vieques flights

Top 7 airlines flying from Detroit to San Juan

Discover the top 7 airlines that operate flights from Detroit to San Juan. 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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$124Average$243FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$148Average$283FlexibilityNo cancel feeOn-time65%
DeltaCheapest$231Average$573FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$266Average$545FlexibilityNo cancel feeOn-time69%
JetBlueCheapest$281Average$362FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$329Average$569FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$395Average$553FlexibilityNo cancel feeOn-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.