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San Juan

$70+ Cheap flights from Michigan 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 11/15. Fares are subject to change and may not be available on all flights or dates of travel.
DTW — SJU
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
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Cheap flight deals from Michigan to San Juan

Keep the following information in mind while searching for Michigan to San Juan flight deals. Data was last updated September 16, 2025.

Round-trip from

$144
(Kiwi.com)

One-way from

$70
(Cheapflightsfares)

Popular in

May

Cheapest in

August

Average price

$242
From Michigan to San Juan
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One-way flight from Michigan to San Juan
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Highest demand for flights based on searches. 15% potential increase in price ($63 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Michigan to San Juan

Cheapest flights from Michigan to San Juan
Explore the most affordable flight options available from Michigan to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
Fri 11/710:49 amDTW - SJU
Nonstop4h 34mSpirit Airlines
Sat 11/156:00 amSJU - DTW
Nonstop4h 44mSpirit Airlines
Deal found 9/14$144
This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
Fri 11/1410:49 amDTW - SJU
Nonstop4h 34mSpirit Airlines
Sat 11/156:00 amSJU - DTW
Nonstop4h 44mSpirit Airlines
Deal found 9/14$148
This Cheapflightsfares deal was found by Cheapflights users on 9/16. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/289:12 amDTW - SJU
Nonstop4h 31mSpirit Airlines
Thu 10/22:38 pmSJU - DTW
Nonstop4h 46mSpirit Airlines
Deal found 9/16$154
This Kiwi.com deal was found by Cheapflights users on 9/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1010:49 amDTW - SJU
Nonstop4h 34mSpirit Airlines
Fri 11/216:00 amSJU - DTW
Nonstop4h 44mSpirit Airlines
Deal found 9/16$164
This Cheapflightsfares deal was found by Cheapflights users on 9/14. 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.
Sun 9/219:12 amDTW - SJU
Nonstop4h 31mSpirit Airlines
Sun 9/282:38 pmSJU - DTW
Nonstop4h 46mSpirit Airlines
Deal found 9/14$169
This Priceline deal was found by Cheapflights users on 9/14. 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.
Sun 9/219:12 amDTW - SJU
Nonstop4h 31mSpirit Airlines
Thu 9/252:38 pmSJU - DTW
Nonstop4h 46mSpirit Airlines
Deal found 9/14$170
This Priceline deal was found by Cheapflights users on 9/15. 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.
Fri 11/712:16 pmDTW - SJU
1 stop6h 05mSpirit Airlines
Mon 11/106:00 amSJU - DTW
Nonstop4h 44mSpirit Airlines
Deal found 9/15$173
This Cheapflightsfares deal was found by Cheapflights users on 9/14. 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.
Mon 9/222:53 pmDTW - SJU
1 stop10h 01mSpirit Airlines
Sun 9/282:38 pmSJU - DTW
Nonstop4h 46mSpirit Airlines
Deal found 9/14$177
This Cheapflightsfares deal was found by Cheapflights users on 9/14. 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.
Mon 11/1010:49 amDTW - SJU
Nonstop4h 34mSpirit Airlines
Mon 11/176:00 amSJU - DTW
Nonstop4h 44mSpirit Airlines
Deal found 9/14$179
This Mytrip deal was found by Cheapflights users on 9/14. 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.
Sat 10/1111:55 amORD - SJU
2 stops26h 04mSpirit Airlines
Sat 10/189:48 amSJU - ORD
Nonstop5h 08mSpirit Airlines
Deal found 9/14$207
This Cheapflightsfares deal was found by Cheapflights users on 9/14. 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 10/216:00 amORD - SJU
1 stop7h 12mSpirit Airlines
Sat 10/259:48 amSJU - ORD
Nonstop5h 08mSpirit Airlines
Deal found 9/14$208
This Frontier deal was found by Cheapflights users on 9/16. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/78:05 amMDW - SJU
2 stops15h 24mFrontier
Sat 10/116:22 amSJU - MDW
2 stops17h 58mFrontier
Deal found 9/16$209

Cheapflights Fare Finder

 
Customize your flight search to find flights from Michigan 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 September 16, 2025.
Use the filters below to find and compare flights from Michigan to San Juan that are best for you.

Fly from

Michigan

Fly to

San Juan

Route

Depart

Return

Price

DetroitSan Juan

DTW - SJU

DTWSJU

Detroit Metropolitan Wayne County

Mon 10/20

8:55 am-1:12 pm

Nonstop4h 17m

San Juan Luis Munoz Marin Intl

Fri 10/31

2:22 pm-7:03 pm

Nonstop4h 41m

$190

DetroitSan Juan

DTW - SJU

DTWSJU

Detroit Metropolitan Wayne County

Mon 11/3

8:55 am-2:12 pm

Nonstop4h 17m

San Juan Luis Munoz Marin Intl

Thu 11/6

7:15 am-12:55 pm

1 stop6h 40m

$195

DetroitSan Juan

DTW - SJU

DTWSJU

Detroit Metropolitan Wayne County

Fri 11/14

5:30 pm-1:25 am

1 stop6h 55m

San Juan Luis Munoz Marin Intl

Tue 11/18

6:40 am-12:25 pm

1 stop6h 45m

$199

DetroitSan Juan

DTW - SJU

DTWSJU

Detroit Metropolitan Wayne County

Sat 10/25

4:37 pm-11:56 pm

1 stop7h 19m

San Juan Luis Munoz Marin Intl

Tue 10/28

7:00 am-3:04 pm

1 stop8h 04m

$199

DetroitSan Juan

DTW - SJU

DTWSJU

Detroit Metropolitan Wayne County

Tue 10/21

4:37 pm-11:56 pm

1 stop7h 19m

San Juan Luis Munoz Marin Intl

Sat 11/1

7:00 am-3:04 pm

1 stop8h 04m

$199

DetroitSan Juan

DTW - SJU

DTWSJU

Detroit Metropolitan Wayne County

Sun 11/16

7:05 am-5:20 pm

1 stop9h 15m

San Juan Luis Munoz Marin Intl

Wed 11/19

7:15 am-3:07 pm

1 stop8h 52m

$199

DetroitSan Juan

DTW - SJU

DTWSJU

Detroit Metropolitan Wayne County

Wed 10/22

4:37 pm-11:56 pm

1 stop7h 19m

San Juan Luis Munoz Marin Intl

Fri 10/31

5:43 pm-12:56 am

1 stop7h 13m

$199

DetroitSan Juan

DTW - SJU

DTWSJU

Detroit Metropolitan Wayne County

Tue 10/21

4:37 pm-11:56 pm

1 stop7h 19m

San Juan Luis Munoz Marin Intl

Fri 10/31

5:43 pm-12:56 am

1 stop7h 13m

$199

DetroitSan Juan

DTW - SJU

DTWSJU

Detroit Metropolitan Wayne County

Mon 10/20

8:55 am-1:12 pm

Nonstop4h 17m

San Juan Luis Munoz Marin Intl

Sat 11/1

2:22 pm-7:03 pm

Nonstop4h 41m

$223

Grand RapidsSan Juan

GRR - SJU

GRRSJU

Grand Rapids Gerald R. Ford Intl

Sat 11/15

7:30 am-3:40 pm

1 stop7h 10m

San Juan Luis Munoz Marin Intl

Fri 12/5

4:52 pm-11:29 pm

1 stop7h 37m

$225

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 60 results
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Best time to book a flight from Michigan to San Juan

Have a flexible travel schedule? Discover the best time to fly to San Juan from Michigan 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 Michigan to San Juan

What is the cheapest month to book a flight from Michigan to San Juan?

Currently, September is the cheapest month in which you can book a flight from Michigan to San Juan (average of $254). Flying from Michigan to San Juan 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 MI to SJU?

Find hourly flight availability from Michigan 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 September 16, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Michigan to San Juan as you normally would.

Related info for your journey

Find useful and relevant information for your journey from Michigan to San Juan. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Michigan to San Juan?

    A quick flight from Michigan to San Juan can take about 4h 17m. Delta provides one of the quickest options available for as low as $190. Airlines will cover a distance of 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 to fly from Michigan to San Juan one-way?

    The cheapest airline one-way is Spirit Airlines, with whom users have recently found tickets for as low as $75. However, be on the lookout for offers from Southwest and United Airlines, as they are both options that can get you from Michigan to San Juan for a low price.

  • What are the most popular routes from Michigan to San Juan?

    The most popular route from Michigan to San Juan is Chicago O'Hare Intl - San Juan Luis Munoz Marin Intl. You may also consider Detroit Metropolitan Wayne County - San Juan Luis Munoz Marin Intl or Chicago Midway - San Juan Luis Munoz Marin Intl.

  • What are the most reliable airlines from Michigan to San Juan?

    Before booking your flight to San Juan from Michigan, check out the most reliable airlines to get you to your destination on time: WestJet (91%), Spirit Airlines (88%), Delta( 84%).

  • What are the cheapest flights from Michigan to San Juan?

    On average you can expect to pay $475 for a flight from Michigan to San Juan. The cheapest flight overall is $68 while the most popular route, (Chicago O'Hare Intl - San Juan Luis Munoz Marin Intl) is currently priced at $170.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Michigan 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 Michigan to San Juan?

    Currently, September is the cheapest month in which you can book a flight from Michigan to San Juan (average of $254). Flying from Michigan to San Juan 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Michigan to San Juan

See prices for flight routes from nearby airports that may be better suited for you.
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Top 7 airlines flying from Michigan to San Juan

Discover the top 7 airlines that operate flights from Michigan 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 September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$124Average$227FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$153Average$271FlexibilityNo cancel feeOn-time65%
DeltaCheapest$241Average$581FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$264Average$563FlexibilityNo cancel feeOn-time71%
JetBlueCheapest$281Average$380FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$285Average$639FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$396Average$588FlexibilityNo cancel feeOn-time63%

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