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.

In terms of precipitation, rainfall in San Juan ranges from 2.2 - 6.1 inches per month. November is typically the wettest month, when rainfall can reach 6.1 in. February is typically the driest time to visit San Juan when rainfall is around 2.2 in.

If weather is an important factor for your trip to San Juan, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 77.0 F).

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

On average you can expect to pay $534 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 $155.

What are the most popular airlines that fly from Detroit Metropolitan Wayne County Airport to San Juan?

Before booking your flight from Detroit Metropolitan Wayne County Airport to San Juan check out the most popular airlines for this route: Spirit Airlines, Delta or American Airlines.

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 4 daily outbound flights to San Juan from 7 different airlines.

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.

$102+ Flights from Detroit Metropolitan Wayne County Airport to San Juan

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

Airfare is below average for this route at the moment. Detroit Metropolitan Wayne County Airport to San Juan flights typically cost between $298 and $668 in February. The cheapest round-trip price found within the last 3 days was $201 on Frontier (Feb 2-Mar 1).

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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 26, 2025.

Wed 12/317:45 amDTW - SJU

1 stop13h 20mSpirit Airlines

Wed 1/76:28 pmSJU - DTW

1 stop6h 31mSpirit Airlines

Deal found 12/25

$259

Wed 12/312:43 pmDTW - SJU

1 stop10h 56mFrontier

Thu 1/17:15 amSJU - DTW

1 stop25h 27mFrontier

Deal found 12/24

$284

Wed 12/312:43 pmDTW - SJU

1 stop10h 56mMultiple Airlines

Thu 1/810:47 pmSJU - DTW

2 stops15h 43mMultiple Airlines

Deal found 12/25

$305

Sat 12/277:20 amDTW - SJU

1 stop13h 45mSpirit Airlines

Mon 12/296:28 pmSJU - DTW

1 stop6h 31mSpirit Airlines

Deal found 12/26

$308

Wed 12/242:43 pmDTW - SJU

1 stop16h 56mMultiple Airlines

Thu 12/254:10 amSJU - DTW

1 stop6h 23mMultiple Airlines

Deal found 12/23

$311

Thu 12/256:00 amDTW - SJU

1 stop9h 26mMultiple Airlines

Wed 12/3112:53 pmSJU - DTW

1 stop12h 49mMultiple Airlines

Deal found 12/24

$319

Thu 12/2512:15 pmDTW - SJU

1 stop25h 32mMultiple Airlines

Mon 12/296:28 pmSJU - DTW

1 stop6h 31mMultiple Airlines

Deal found 12/24

$321

Wed 12/317:45 amDTW - SJU

1 stop13h 20mSpirit Airlines

Tue 1/612:53 pmSJU - DTW

1 stop12h 49mSpirit Airlines

Deal found 12/25

$328

Sat 12/277:20 amDTW - SJU

1 stop13h 45mSpirit Airlines

Fri 1/94:40 pmSJU - DTW

1 stop8h 19mSpirit Airlines

Deal found 12/23

$350

Mon 12/2912:15 pmDTW - SJU

1 stop10h 23mFrontier

Wed 1/77:05 pmSJU - DTW

1 stop16h 06mFrontier

Deal found 12/25

$355

Wed 12/315:23 pmDTW - SJU

1 stop8h 16mMultiple Airlines

Wed 1/77:50 pmSJU - DTW

1 stop13h 06mMultiple Airlines

Deal found 12/24

$356

Best flights from Detroit to San Juan
Discover carefully curated flight deals from Detroit to San Juan that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 26, 2025.

Wed 2/411:10 amDTW - SJU

1 stop9h 16mUnited Airlines

Mon 2/92:05 amSJU - DTW

1 stop9h 45mUnited Airlines

Deal found 12/23

$329

Tue 5/58:25 amDTW - SJU

Nonstop4h 25mDelta

Tue 5/196:15 amSJU - DTW

1 stop8h 56mDelta

Deal found 12/26

$406

Fri 1/235:50 pmDTW - SJU

2 stops11h 21mUnited Airlines

Tue 1/272:15 pmSJU - DTW

2 stops10h 29mUnited Airlines

Deal found 12/26

$371

Mon 2/28:43 amDTW - SJU

Nonstop4h 27mDelta

Sat 2/73:20 pmSJU - DTW

Nonstop4h 55mDelta

Deal found 12/23

$410

Sun 3/110:28 amDTW - SJU

2 stops10h 54mUnited Airlines

Fri 3/68:30 amSJU - DTW

1 stop9h 55mUnited Airlines

Deal found 12/26

$387

Sat 1/244:00 pmDTW - SJU

1 stop6h 57mDelta

Sat 2/73:20 pmSJU - DTW

Nonstop4h 55mDelta

Deal found 12/23

$415

Tue 4/1411:00 amDTW - SJU

2 stops10h 24mUnited Airlines

Tue 4/217:40 amSJU - DTW

1 stop7h 42mUnited Airlines

Deal found 12/26

$395

Tue 1/204:16 pmDTW - SJU

1 stop6h 29mDelta

Tue 1/273:20 pmSJU - DTW

Nonstop4h 55mDelta

Deal found 12/24

$415

Thu 1/2211:05 amDTW - SJU

1 stop8h 55mUnited Airlines

Fri 1/302:05 amSJU - DTW

2 stops12h 06mUnited Airlines

Deal found 12/25

$419

Tue 1/2011:05 amDTW - SJU

2 stops12h 31mUnited Airlines

Mon 1/262:05 amSJU - DTW

2 stops12h 16mUnited Airlines

Deal found 12/25

$419

Thu 1/2911:05 amDTW - SJU

2 stops12h 31mUnited Airlines

Wed 2/42:05 amSJU - DTW

2 stops12h 16mUnited Airlines

Deal found 12/26

$419

Tue 1/202:19 pmDTW - SJU

2 stops9h 17mUnited Airlines

Tue 1/272:05 amSJU - DTW

2 stops12h 16mUnited Airlines

Deal found 12/25

$419

Last-minute flights from Detroit to San Juan
Discover last-minute flight deals from Detroit to San Juan. Data last updated December 26, 2025 and is based on user searches.

Thu 1/811:41 amDTW - SJU

1 stop10h 45mFrontier

Thu 1/156:00 amSJU - DTW

1 stop13h 46mFrontier

Deal found 12/26

$201

Fri 1/97:00 amDTW - SJU

1 stop15h 33mSpirit Airlines

Sat 1/176:00 amSJU - DTW

1 stop8h 52mSpirit Airlines

Deal found 12/25

$204

Mon 1/122:06 pmDTW - SJU

1 stop12h 07mMultiple Airlines

Sat 2/145:20 amSJU - DTW

1 stop7h 18mMultiple Airlines

Deal found 12/25

$203

Mon 1/122:06 pmDTW - SJU

1 stop12h 07mMultiple Airlines

Wed 2/115:50 pmSJU - DTW

1 stop7h 29mMultiple Airlines

Deal found 12/25

$208

Fri 1/165:18 pmDTW - SJU

1 stop8h 12mFrontier

Sat 1/178:57 amSJU - DTW

1 stop11h 24mFrontier

Deal found 12/26

$210

Mon 1/195:18 pmDTW - SJU

1 stop8h 12mMultiple Airlines

Fri 1/2311:52 amSJU - DTW

1 stop11h 20mMultiple Airlines

Deal found 12/26

$207

Tue 1/205:15 amDTW - SJU

1 stop17h 18mSpirit Airlines

Tue 1/276:00 amSJU - DTW

1 stop11h 06mSpirit Airlines

Deal found 12/26

$202

Tue 1/205:00 amDTW - SJU

1 stop10h 25mMultiple Airlines

Thu 1/298:31 pmSJU - DTW

2 stops22h 48mMultiple Airlines

Deal found 12/25

$209

Thu 1/225:15 amDTW - SJU

1 stop17h 18mSpirit Airlines

Sat 1/316:00 amSJU - DTW

1 stop11h 06mSpirit Airlines

Deal found 12/25

$206

Fri 1/2311:39 amDTW - SJU

1 stop11h 20mMultiple Airlines

Fri 1/306:00 amSJU - DTW

1 stop8h 52mMultiple Airlines

Deal found 12/25

$205

Sat 1/245:14 pmDTW - SJU

1 stop17h 31mFrontier

Sun 2/18:00 amSJU - DTW

1 stop14h 01mFrontier

Deal found 12/25

$211

Fri 1/305:15 pmDTW - SJU

1 stop15h 32mSpirit Airlines

Tue 2/34:40 pmSJU - DTW

1 stop7h 04mSpirit Airlines

Deal found 12/25

$212

One-way flights from Detroit to San Juan
Search for one-way flight options from Detroit to San Juan. Find affordable one-way fares based on user searches. Data last updated December 26, 2025.

Thu 2/2610:10 amDTW - SJU

1 stop6h 22mSpirit Airlines

Deal found 12/25

$102

Sun 1/257:14 pmDTW - SJU

2 stops22h 44mMultiple Airlines

Deal found 12/23

$103

Sat 1/172:55 pmDTW - SJU

2 stops20h 37mMultiple Airlines

Deal found 12/26

$104

Mon 1/510:27 pmDTW - SJU

1 stop27h 46mMultiple Airlines

Deal found 12/25

$105

Thu 2/265:33 pmDTW - SJU

2 stops24h 25mMultiple Airlines

Deal found 12/26

$107

Sun 2/227:43 pmDTW - SJU

1 stop13h 34mSpirit Airlines

Deal found 12/25

$108

Mon 1/267:14 pmDTW - SJU

2 stops20h 11mFrontier

Deal found 12/23

$109

Wed 12/316:00 amDTW - SJU

1 stop15h 06mSpirit Airlines

Deal found 12/26

$110

Mon 2/2310:00 pmDTW - SJU

2 stops19h 58mMultiple Airlines

Deal found 12/26

$111

Sat 1/36:00 amDTW - SJU

1 stop15h 05mSpirit Airlines

Deal found 12/25

$115

Wed 3/184:20 pmDTW - SJU

1 stop7h 38mSpirit Airlines

Deal found 12/25

$116

Fri 1/26:40 pmDTW - SJU

1 stop16h 18mSpirit Airlines

Deal found 12/25

$117

Find flight deals from Detroit to San Juan

Round-trip from	$201 (Frontier)
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. 17% potential increase in price ($77 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

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

DetroitSan Juan

DTW - SJU

DTWSJU

Detroit Metropolitan Wayne County

Wed 2/4

11:10 am-9:26 pm

1 stop9h 16m

San Juan Luis Munoz Marin Intl

Mon 2/9

2:05 am-10:50 am

1 stop9h 45m

$329

DetroitSan Juan

DTW - SJU

DTWSJU

Detroit Metropolitan Wayne County

Fri 1/23

5:50 pm-6:11 am

2 stops11h 21m

San Juan Luis Munoz Marin Intl

Tue 1/27

2:15 pm-11:44 pm

2 stops10h 29m

$371

DetroitSan Juan

DTW - SJU

DTWSJU

Detroit Metropolitan Wayne County

Sun 3/1

10:28 am-10:22 pm

2 stops10h 54m

San Juan Luis Munoz Marin Intl

Fri 3/6

8:30 am-5:25 pm

1 stop9h 55m

$387

DetroitSan Juan

DTW - SJU

DTWSJU

Detroit Metropolitan Wayne County

Tue 4/14

11:00 am-9:24 pm

2 stops10h 24m

San Juan Luis Munoz Marin Intl

Tue 4/21

7:40 am-3:22 pm

1 stop7h 42m

$395

DetroitSan Juan

DTW - SJU

DTWSJU

Detroit Metropolitan Wayne County

Tue 5/5

8:25 am-12:50 pm

Nonstop4h 25m

San Juan Luis Munoz Marin Intl

Tue 5/19

6:15 am-3:11 pm

1 stop8h 56m

$406

DetroitSan Juan

DTW - SJU

DTWSJU

Detroit Metropolitan Wayne County

Mon 2/2

8:43 am-2:10 pm

Nonstop4h 27m

San Juan Luis Munoz Marin Intl

Sat 2/7

3:20 pm-7:15 pm

Nonstop4h 55m

$410

DetroitSan Juan

DTW - SJU

DTWSJU

Detroit Metropolitan Wayne County

Sat 1/24

4:00 pm-11:57 pm

1 stop6h 57m

San Juan Luis Munoz Marin Intl

Sat 2/7

3:20 pm-7:15 pm

Nonstop4h 55m

$415

DetroitSan Juan

DTW - SJU

DTWSJU

Detroit Metropolitan Wayne County

Tue 1/20

4:16 pm-11:45 pm

1 stop6h 29m

San Juan Luis Munoz Marin Intl

Tue 1/27

3:20 pm-7:15 pm

Nonstop4h 55m

$415

DetroitSan Juan

DTW - SJU

DTWSJU

Detroit Metropolitan Wayne County

Thu 1/22

11:05 am-9:00 pm

1 stop8h 55m

San Juan Luis Munoz Marin Intl

Fri 1/30

2:05 am-1:11 pm

2 stops12h 06m

$419

DetroitSan Juan

DTW - SJU

DTWSJU

Detroit Metropolitan Wayne County

Tue 1/20

11:05 am-12:36 am

2 stops12h 31m

San Juan Luis Munoz Marin Intl

Mon 1/26

2:05 am-1:21 pm

2 stops12h 16m

$419

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/25

Showing 1-10 of 21 results

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?

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 December is currently the most expensive (average of $202). 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?

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?

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.

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

The most flights from DTW to PR1 are scheduled on a Monday (4 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (4 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

Peruse reviews from past customers who have flown with Delta, American Airlines, and JetBlue 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.

Delta

7.9

Good

8,018 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Delta

7.9

Good

8,018 reviews

Delta

7.9

Good

8,018 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

American Airlines

7.2

Good

11,068 reviews

Delta

7.9

Good

8,018 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

JetBlue

7.2

Good

2,900 reviews

Delta

7.9

Good

8,018 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

Spirit Airlines

6.3

Okay

8,210 reviews

Delta

7.9

Good

8,018 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

Frontier

5.8

Fair

3,071 reviews

Delta

7.9

Good

8,018 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

Related info for your journey

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 4 daily outbound flights to San Juan from 7 different airlines.
How long is the flight from Detroit Metropolitan Wayne County Airport to San Juan?
United Airlines and Delta can get you from Detroit Metropolitan Wayne County Airport to San Juan in just under 4h 25m. Your travel time can differ by up to 4h 51m. The distance from Detroit Metropolitan Wayne County Airport to San Juan is about 1932 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.
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 $534 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 $155.
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 December is currently the most expensive (average of $202). 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

Alternative routes for Detroit to San Juan

Detroit to Luis Munoz Marin Intl flights

Detroit to Aguadilla flights

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Detroit to Culebra flights

Complete your trip

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Santurce car rentals

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Hato Rey Sur car rentals

Hato Rey Norte car rentals

Top 7 airlines flying from Detroit to San Juan

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$124	Average$239	FlexibilityNo cancel fee	On-time62%
Spirit Airlines	Cheapest$147	Average$281	FlexibilityNo cancel fee	On-time65%
Delta	Cheapest$229	Average$570	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$266	Average$545	FlexibilityNo cancel fee	On-time69%
JetBlue	Cheapest$281	Average$362	FlexibilityNo cancel fee	On-time62%
American Airlines	Cheapest$329	Average$568	FlexibilityNo cancel fee	On-time71%
Southwest	Cheapest$395	Average$555	FlexibilityNo cancel fee	On-time63%

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$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 2/26. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Detroit to San Juan with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

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 JuanExplore 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 26, 2025.

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 26, 2025.

Find flight deals from Detroit to San Juan

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from Detroit Metropolitan Wayne County Airport to San Juan that are best for you.

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.

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 19, 2025.

What is the cheapest month to book a flight from Detroit Metropolitan Wayne County Airport to San Juan?

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 26, 2025.

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.

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 December 26, 2025.

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

Reviews of airlines servicing San Juan

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?

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

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

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

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

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

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

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

What is the cheapest month to book a flight from Detroit Metropolitan Wayne County Airport to San Juan?

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

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Top 7 airlines flying from Detroit to San Juan

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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 26, 2025.