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San Juan

$86+ 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 4/19. Fares are subject to change and may not be available on all flights or dates of travel.
DTW — SJU
Apr 25 — May 21
Sat 4/25
Sat 5/2
1 adult, Economy
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Cheapflights Tip: The best prices from Detroit Metropolitan Wayne County to San Juan are usually found in September or August, booked 2 days in advance, depart on a Monday or Sunday and return on a Sunday

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 March 26, 2026.

This CheapOair deal was found by Cheapflights users on 3/25. 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 4/2511:26 am
DTW
-
SJU
1 stop11h 22m
Frontier
Thu 4/304:14 pm
SJU
-
DTW
1 stop29h 07m
Frontier
Deal found 3/25$213
This Frontier deal was found by Cheapflights users on 3/23. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/315:12 pm
DTW
-
SJU
1 stop7h 45m
Frontier
Tue 5/55:15 pm
SJU
-
DTW
1 stop7h 44m
Frontier
Deal found 3/23$215
This Frontier deal was found by Cheapflights users on 3/23. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/23:07 pm
DTW
-
SJU
1 stop10h 54m
Frontier
Tue 5/53:03 am
SJU
-
DTW
1 stop8h 57m
Frontier
Deal found 3/23$216
This Expedia deal was found by Cheapflights users on 3/25. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2112:55 pm
DTW
-
SJU
1 stop11h 46m
Frontier
Mon 5/256:09 pm
SJU
-
DTW
1 stop17h 51m
Frontier
Deal found 3/25$221
This Priceline deal was found by Cheapflights users on 3/23. 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.
Wed 4/87:41 pm
DTW
-
SJU
1 stop12h 15m
Frontier
Sat 4/113:21 am
SJU
-
DTW
1 stop29h 38m
Frontier
Deal found 3/23$222
This CheapOair deal was found by Cheapflights users on 3/26. 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.
Thu 5/712:55 pm
DTW
-
SJU
1 stop11h 46m
Frontier
Sun 5/176:09 pm
SJU
-
DTW
1 stop17h 51m
Frontier
Deal found 3/26$223
This CheapOair deal was found by Cheapflights users on 3/22. 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.
Wed 4/81:08 pm
DTW
-
SJU
1 stop12h 53m
Frontier
Sat 4/116:00 am
SJU
-
DTW
1 stop18h 51m
Frontier
Deal found 3/22$224
This Frontier deal was found by Cheapflights users on 3/23. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/315:12 pm
DTW
-
SJU
1 stop7h 45m
Frontier
Thu 5/75:15 pm
SJU
-
DTW
1 stop7h 24m
Frontier
Deal found 3/23$225
This Frontier deal was found by Cheapflights users on 3/22. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/68:01 pm
DTW
-
SJU
1 stop13h 17m
Frontier
Fri 4/177:15 am
SJU
-
DTW
1 stop13h 56m
Frontier
Deal found 3/22$226
This Trip.com deal was found by Cheapflights users on 3/22. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/56:59 pm
DTW
-
SJU
1 stop29h 00m
Frontier
Tue 4/73:16 am
SJU
-
DTW
1 stop7h 30m
Frontier
Deal found 3/22$227
This Kiwi.com deal was found by Cheapflights users on 3/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/18:15 am
DTW
-
SJU
1 stop10h 40m
Multiple Airlines
Thu 4/97:54 pm
SJU
-
DTW
1 stop28h 45m
Multiple Airlines
Deal found 3/25$228
This CheapOair deal was found by Cheapflights users on 3/24. 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.
Wed 4/18:15 am
DTW
-
SJU
1 stop10h 40m
Multiple Airlines
Wed 4/86:00 am
SJU
-
DTW
1 stop11h 00m
Multiple Airlines
Deal found 3/24$229

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 March 26, 2026.

Round-trip from

$213
(CheapOair)

One-way from

$86
(eDestinos)

Popular in

December

Cheapest in

September

Average price

$446
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. 19% potential increase in price ($88 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($21 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
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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 March 26, 2026.
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

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DetroitSan Juan

DTW - SJU

DTWSJU

Detroit Metropolitan Wayne County

Wed 6/10

8:25 am-12:54 pm

Nonstop4h 29m

San Juan Luis Munoz Marin Intl

Wed 6/17

7:05 am-3:04 pm

1 stop7h 59m

$512
Quickest round-trip

DetroitSan Juan

DTW - SJU

DTWSJU

Detroit Metropolitan Wayne County

Mon 6/1

8:59 am-1:20 pm

Nonstop4h 21m

San Juan Luis Munoz Marin Intl

Mon 6/8

2:04 pm-6:42 pm

Nonstop4h 38m

$532

DetroitSan Juan

DTW - SJU

DTWSJU

Detroit Metropolitan Wayne County

Wed 5/6

12:15 pm-11:15 pm

1 stop11h 00m

San Juan Luis Munoz Marin Intl

Wed 5/13

2:35 pm-7:15 pm

Nonstop4h 40m

$567

DetroitSan Juan

DTW - SJU

DTWSJU

Detroit Metropolitan Wayne County

Mon 5/4

8:35 am-12:52 pm

Nonstop4h 17m

San Juan Luis Munoz Marin Intl

Fri 5/8

7:05 am-3:06 pm

1 stop8h 01m

$582

DetroitSan Juan

DTW - SJU

DTWSJU

Detroit Metropolitan Wayne County

Sat 5/16

3:00 pm-10:17 pm

1 stop7h 17m

San Juan Luis Munoz Marin Intl

Wed 5/20

2:35 pm-7:15 pm

Nonstop4h 40m

$592

DetroitSan Juan

DTW - SJU

DTWSJU

Detroit Metropolitan Wayne County

Wed 4/29

8:35 am-12:52 pm

Nonstop4h 17m

San Juan Luis Munoz Marin Intl

Sat 5/2

2:03 pm-6:46 pm

Nonstop4h 43m

$602

DetroitSan Juan

DTW - SJU

DTWSJU

Detroit Metropolitan Wayne County

Sat 5/2

8:35 am-12:52 pm

Nonstop4h 17m

San Juan Luis Munoz Marin Intl

Fri 5/8

7:05 am-6:42 pm

1 stop11h 37m

$607

DetroitSan Juan

DTW - SJU

DTWSJU

Detroit Metropolitan Wayne County

Thu 5/7

8:59 am-1:20 pm

Nonstop4h 21m

San Juan Luis Munoz Marin Intl

Wed 5/13

2:35 pm-7:15 pm

Nonstop4h 40m

$607

DetroitSan Juan

DTW - SJU

DTWSJU

Detroit Metropolitan Wayne County

Tue 5/26

8:59 am-1:20 pm

Nonstop4h 21m

San Juan Luis Munoz Marin Intl

Tue 6/2

2:35 pm-7:15 pm

Nonstop4h 40m

$617

DetroitSan Juan

DTW - SJU

DTWSJU

Detroit Metropolitan Wayne County

Mon 5/11

8:59 am-1:20 pm

Nonstop4h 21m

San Juan Luis Munoz Marin Intl

Sat 5/16

2:35 pm-7:15 pm

Nonstop4h 40m

$622

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/25

Showing 1-10 of 21 resultsSorted by cheapest first
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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 March 13, 2026.

Booking 2 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, May is the cheapest month in which you can book a flight from Detroit Metropolitan Wayne County Airport to San Juan (average of $131). Flying from Detroit Metropolitan Wayne County Airport to San Juan in March is currently the most expensive (average of $209). 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 March 26, 2026.

When flying from Detroit Metropolitan Wayne County Airport to San Juan, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Detroit Metropolitan Wayne County Airport to San Juan

Explore weekly flight availability from Detroit to San Juan. 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 March 26, 2026.

The most flights from DTW to PR1 are scheduled on a Monday (2 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (1 on average).

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 March 26, 2026.
Peruse reviews from past customers who have flown with Southwest,Delta, andAmerican 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
8.0
Very good
4,333 reviews

Entertainment

7.5

Food

7.0

Boarding

8.1

Crew

8.6

Comfort

8.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Southwest
8.0
Very good
4,333 reviews
Southwest
8.0
Very good
4,333 reviews

Entertainment

7.5

Food

7.0

Boarding

8.1

Crew

8.6

Comfort

8.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Delta
7.9
Good
8,331 reviews
Southwest
8.0
Very good
4,333 reviews

Entertainment

7.5

Food

7.0

Boarding

8.1

Crew

8.6

Comfort

8.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
American Airlines
7.1
Good
11,496 reviews
Southwest
8.0
Very good
4,333 reviews

Entertainment

7.5

Food

7.0

Boarding

8.1

Crew

8.6

Comfort

8.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Spirit Airlines
6.3
Okay
8,546 reviews
Southwest
8.0
Very good
4,333 reviews

Entertainment

7.5

Food

7.0

Boarding

8.1

Crew

8.6

Comfort

8.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Frontier
5.7
Fair
3,015 reviews
Southwest
8.0
Very good
4,333 reviews

Entertainment

7.5

Food

7.0

Boarding

8.1

Crew

8.6

Comfort

8.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

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 is 1 daily outbound flight 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 29m. 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 Spirit Airlines is currently your cheapest option to San Juan, with prices starting at $130. Additional round-trip tickets that might be worth considering are offered by Frontier and Delta, with the lowest prices starting at $162 and $202, respectively. You may be able to fly from Detroit Metropolitan Wayne County Airport to San Juan for 65% 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 Spirit Airlines, with whom users have recently found tickets for as low as $70. However, be on the lookout for offers from Frontier and Delta, 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 $492 for a flight from Detroit Metropolitan Wayne County Airport to San Juan. The cheapest flight overall is $268 while the most popular route, (Detroit Metropolitan Wayne County - San Juan Luis Munoz Marin Intl) is currently priced at $206.

  • 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, May is the cheapest month in which you can book a flight from Detroit Metropolitan Wayne County Airport to San Juan (average of $131). Flying from Detroit Metropolitan Wayne County Airport to San Juan in March is currently the most expensive (average of $209). 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

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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

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 March 26, 2026.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$130Average$287FlexibilityNo cancel feeOn-time65%
FrontierCheapest$162Average$319FlexibilityNo cancel feeOn-time62%
DeltaCheapest$202Average$528FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$211Average$360FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$266Average$545FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$329Average$576FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$395Average$523FlexibilityNo cancel feeOn-time63%

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