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Cheap flights from Detroit to San Juan from $143

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Detroit to San Juan departing on 8/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Detroit to San Juan

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
10:08 am - 4:11 pm
DTW
-
SJU
30h 03m
1 stop
Frontier Logo
6:00 am - 12:55 pm
SJU
-
DTW
30h 55m
1 stop
$303Frontier
Wed, Aug 5 - Tue, Aug 11
Frontier Logo
10:08 am - 4:11 pm
DTW
-
SJU
30h 03m
1 stop
Frontier Logo
6:00 am - 12:55 pm
SJU
-
DTW
30h 55m
1 stop
$304Frontier
Wed, Aug 5 - Mon, Aug 10
Frontier Logo
10:08 am - 4:11 pm
DTW
-
SJU
30h 03m
1 stop
Frontier Logo
6:00 am - 12:55 pm
SJU
-
DTW
30h 55m
1 stop
$305Frontier
Wed, Aug 5 - Mon, Aug 10
Frontier Logo
10:08 am - 4:11 pm
DTW
-
SJU
30h 03m
1 stop
Frontier Logo
6:00 am - 12:55 pm
SJU
-
DTW
30h 55m
1 stop
$308Frontier
Wed, Aug 5 - Mon, Aug 10
Frontier Logo
10:08 am - 4:11 pm
DTW
-
SJU
30h 03m
1 stop
Frontier Logo
6:00 am - 12:55 pm
SJU
-
DTW
30h 55m
1 stop
$309Frontier
Wed, Aug 5 - Wed, Aug 12
Frontier Logo
10:08 am - 4:11 pm
DTW
-
SJU
30h 03m
1 stop
Frontier Logo
6:00 am - 12:55 pm
SJU
-
DTW
30h 55m
1 stop
$310Frontier
Wed, Aug 5 - Thu, Aug 13
Frontier Logo
10:08 am - 4:11 pm
DTW
-
SJU
30h 03m
1 stop
Frontier Logo
6:26 am - 1:33 pm
SJU
-
DTW
31h 07m
2 stops
$311Frontier
Wed, Aug 5 - Sat, Aug 15
Frontier Logo
10:08 am - 4:11 pm
DTW
-
SJU
30h 03m
1 stop
Frontier Logo
6:00 am - 12:55 pm
SJU
-
DTW
30h 55m
1 stop
$314Frontier
Sat, Aug 8 - Sun, Aug 16
Frontier Logo
10:08 am - 4:11 pm
DTW
-
SJU
30h 03m
1 stop
Frontier Logo
6:26 am - 1:33 pm
SJU
-
DTW
31h 07m
2 stops
$315Frontier
Fri, Aug 7 - Sat, Aug 15
Frontier Logo
10:08 am - 4:11 pm
DTW
-
SJU
30h 03m
1 stop
Frontier Logo
6:26 am - 12:40 am
SJU
-
DTW
18h 14m
2 stops
$316Frontier
Wed, Aug 5 - Fri, Aug 14

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Frontier flights from Detroit to San Juan Luis Munoz Marin Intl Airport

Our best Frontier deals on Detroit to San Juan Luis Munoz Marin Intl Airport flight tickets
Frontier
Aug 5
DTW10:08 amDetroit Metropolitan Wayne County
30h 03m
1 stop
SJU4:11 pmSan Juan Luis Munoz Marin Intl
Aug 13
SJU6:00 amSan Juan Luis Munoz Marin Intl
30h 55m
1 stop
DTW12:55 pmDetroit Metropolitan Wayne County
$303
Frontier
Aug 5
DTW10:08 amDetroit Metropolitan Wayne County
30h 03m
1 stop
SJU4:11 pmSan Juan Luis Munoz Marin Intl
Aug 10
SJU6:00 amSan Juan Luis Munoz Marin Intl
30h 55m
1 stop
DTW12:55 pmDetroit Metropolitan Wayne County
$304
Frontier
Aug 5
DTW10:08 amDetroit Metropolitan Wayne County
30h 03m
1 stop
SJU4:11 pmSan Juan Luis Munoz Marin Intl
Aug 10
SJU6:00 amSan Juan Luis Munoz Marin Intl
30h 55m
1 stop
DTW12:55 pmDetroit Metropolitan Wayne County
$308

momondo Fare Finder

 
Customize your flight search to find flights from Detroit to San Juan Luis Munoz Marin Intl Airport 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, momondo users made 832,500 searches. Data last updated June 17, 2026.
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

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DetroitSan Juan

DTW - SJU

DTWSJU

Detroit Metropolitan Wayne County

Wed 8/5

10:08 am-4:11 pm

1 stop30h 03m

San Juan Luis Munoz Marin Intl

Tue 8/11

6:00 am-12:55 pm

1 stop30h 55m

$303

DetroitSan Juan

DTW - SJU

DTWSJU

Detroit Metropolitan Wayne County

Wed 8/5

10:08 am-4:11 pm

1 stop30h 03m

San Juan Luis Munoz Marin Intl

Mon 8/10

6:00 am-12:55 pm

1 stop30h 55m

$304

DetroitSan Juan

DTW - SJU

DTWSJU

Detroit Metropolitan Wayne County

Wed 8/5

10:08 am-4:11 pm

1 stop30h 03m

San Juan Luis Munoz Marin Intl

Mon 8/10

6:00 am-12:55 pm

1 stop30h 55m

$305

DetroitSan Juan

DTW - SJU

DTWSJU

Detroit Metropolitan Wayne County

Wed 8/5

10:08 am-4:11 pm

1 stop30h 03m

San Juan Luis Munoz Marin Intl

Mon 8/10

6:00 am-12:55 pm

1 stop30h 55m

$308

DetroitSan Juan

DTW - SJU

DTWSJU

Detroit Metropolitan Wayne County

Wed 8/5

10:08 am-4:11 pm

1 stop30h 03m

San Juan Luis Munoz Marin Intl

Wed 8/12

6:00 am-12:55 pm

1 stop30h 55m

$309

DetroitSan Juan

DTW - SJU

DTWSJU

Detroit Metropolitan Wayne County

Wed 8/5

10:08 am-4:11 pm

1 stop30h 03m

San Juan Luis Munoz Marin Intl

Thu 8/13

6:00 am-12:55 pm

1 stop30h 55m

$310

DetroitSan Juan

DTW - SJU

DTWSJU

Detroit Metropolitan Wayne County

Wed 8/5

10:08 am-4:11 pm

1 stop30h 03m

San Juan Luis Munoz Marin Intl

Sat 8/15

6:26 am-1:33 pm

2 stops31h 07m

$311

DetroitSan Juan

DTW - SJU

DTWSJU

Detroit Metropolitan Wayne County

Sat 8/8

10:08 am-4:11 pm

1 stop30h 03m

San Juan Luis Munoz Marin Intl

Sun 8/16

6:00 am-12:55 pm

1 stop30h 55m

$314

DetroitSan Juan

DTW - SJU

DTWSJU

Detroit Metropolitan Wayne County

Fri 8/7

10:08 am-4:11 pm

1 stop30h 03m

San Juan Luis Munoz Marin Intl

Sat 8/15

6:26 am-1:33 pm

2 stops31h 07m

$315
Quickest round-trip

DetroitSan Juan

DTW - SJU

DTWSJU

Detroit Metropolitan Wayne County

Wed 8/5

10:08 am-4:11 pm

1 stop30h 03m

San Juan Luis Munoz Marin Intl

Fri 8/14

6:26 am-12:40 am

2 stops18h 14m

$316

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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See travel insights to San Juan from

How to get the cheapest flight ticket from Detroit to San Juan Luis Munoz Marin Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Detroit and San Juan Luis Munoz Marin Intl Airport?

What is the cheapest month to fly to San Juan Luis Munoz Marin Intl Airport?

If you aren’t able to travel to San Juan Luis Munoz Marin Intl Airport during the month of September, then flying in April is also cheap. Prices for this month can be found on momondo for an average of $88.

What is the cheapest day to depart on your flight to San Juan Luis Munoz Marin Intl Airport?

On average, the least expensive day to fly to San Juan Luis Munoz Marin Intl Airport from Detroit is on a Monday. momondo users have found tickets for Monday departures for as low as $543. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Friday is the most expensive day to depart from Detroit because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $666.

What is the cheapest Detroit to San Juan Luis Munoz Marin Intl flight route?

Fly from Detroit Metropolitan Wayne County to San Juan Luis Munoz Marin Intl for the best Detroit - San Juan Luis Munoz Marin Intl flight prices

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

You are more likely to see cheaper flights to San Juan Luis Munoz Marin Intl Airport from Detroit when booking weeks ahead of your departure date. In general, you can expect to find flights to San Juan Luis Munoz Marin Intl Airport for around $394 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Juan Luis Munoz Marin Intl Airport from Detroit for as low as $318 on momondo.

What cabin class options are available on Detroit to San Juan Luis Munoz Marin Intl Airport flights?

There are 4 cabin classes available to choose from on Detroit to San Juan Luis Munoz Marin Intl Airport flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Detroit to San Juan Luis Munoz Marin Intl Airport flights?

No. A direct flight is the cheapest option for a flight between Detroit to San Juan Luis Munoz Marin Intl Airport.

How have Detroit to San Juan Luis Munoz Marin Intl Airport flight prices changed over time?

As of June 2026, prices for Detroit to San Juan Luis Munoz Marin Intl Airport flights are approximately 187% more expensive when compared to flights at the same time last year.

When to book flights from Detroit to San Juan Luis Munoz Marin Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Detroit to San Juan Luis Munoz Marin Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Detroit to San Juan Luis Munoz Marin Intl Airport (DTT to SJU) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Detroit to San Juan Luis Munoz Marin Intl Airport

Best Price Found

$637

Fastest flight time

4h 23m

Direct flights

Every day
The best flight deal from Detroit to San Juan Luis Munoz Marin Intl Airport found on momondo in the last 72 hours is $637
The fastest flight from Detroit to San Juan Luis Munoz Marin Intl Airport takes 4h 23m
Direct flights go from Detroit to San Juan Luis Munoz Marin Intl Airport every day.
Search flight deals

Frequently asked questions about flying from Detroit to San Juan Luis Munoz Marin Intl Airport

  • How far is Detroit to San Juan Luis Munoz Marin Intl by plane?

    A flight from Detroit to San Juan Luis Munoz Marin Intl will travel around 1929.1 mi. By plane, this route typically takes 4h 23m.

  • When did momondo last update prices for flights from Detroit to San Juan Luis Munoz Marin Intl Airport?

    Prices for flights from Detroit to San Juan Luis Munoz Marin Intl Airport are updated daily.

  • How many operators does momondo search for flights from Detroit to San Juan Luis Munoz Marin Intl Airport?

  • How old do you have to be to fly from Detroit to San Juan Luis Munoz Marin Intl Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Detroit to San Juan Luis Munoz Marin Intl Airport.

  • What documentation or ID do you need to fly to San Juan Luis Munoz Marin Intl Airport?

    The required travel and health documents for your San Juan Luis Munoz Marin Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at San Juan Luis Munoz Marin Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Detroit to San Juan Luis Munoz Marin Intl Airport?

  • What is the most popular airline from Detroit to San Juan Luis Munoz Marin Intl Airport?

Best airlines flying from Detroit to San Juan Luis Munoz Marin Intl Airport

Compare and see reviews for airlines that fly from Detroit to San Juan Luis Munoz Marin Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $155Free CancellationRating
5.6
2,880 reviews
Search Frontier flights
DeltaPriceFrom $196Free CancellationRating
7.8
8,408 reviews
Search Delta flights
JetBluePriceFrom $211Free CancellationRating
7.1
2,982 reviews
Search JetBlue flights
United AirlinesPriceFrom $266Free CancellationRating
7.4
9,852 reviews
Search United Airlines flights
American AirlinesPriceFrom $329Free CancellationRating
7.1
11,678 reviews
Search American Airlines flights
SouthwestPriceFrom $394Free CancellationRating
7.9
4,235 reviews
Search Southwest flights

  • Delta Flights From Detroit to San Juan Luis Munoz Marin Intl Airport

    Delta is one of the most popular airlines flying from Detroit to San Juan Luis Munoz Marin Intl Airport, operating 7 flights/week on average for this route. A good Delta flight deal for Detroit to San Juan Luis Munoz Marin Intl Airport starts from $196 round-trip, up to an average price of $585. Our users have rated Delta at 7.8/10.

Traveling to a place near San Juan?

Book flights to San Juan if you plan to visit one of these locations
Carolina
Fajardo
Dorado
Luquillo
Humacao
Rio Grande
Caguas
Bayamón

Why use momondo?

Why should I use momondo to find a flight deal from Detroit to San Juan?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Detroit to San Juan. momondo saves you time and could save you money on your trip.

Can I find flights from Detroit to San Juan with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Detroit to San Juan flights to just show those with flexible booking policies.

How can momondo help me find flights from Detroit to San Juan?

momondo provides multiple filters to help you find the best flight to San Juan from Detroit. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Detroit to San Juan right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Detroit to San Juan flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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