DTW - SJU

$75 Find Cheap Flights from Detroit to San Juan

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Detroit to San Juan departing on 1/26. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to San Juan Luis Munoz Marin Intl Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Detroit to San Juan.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Detroit to San Juan.
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Flight Deals

Cheap Flights from Detroit to San Juan (DTW-SJU)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Detroit to San Juan that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Detroit to San Juan

Sun, Nov 9 - Thu, Nov 13
Spirit Airlines Logo
6:10 am - 5:19 pmDTW-SJU
10h 09m1 stop
Spirit Airlines Logo
9:28 pm - 9:47 amSJU-DTW
13h 19m1 stop
$192Spirit Airlines
Find Deal
Tue, Nov 18 - Sat, Nov 22
Spirit Airlines Logo
6:10 am - 2:42 pmDTW-SJU
7h 32m1 stop
Spirit Airlines Logo
11:55 am - 9:58 pmSJU-DTW
11h 03m1 stop
$195Spirit Airlines
Find Deal
Sat, Feb 7 - Sat, Feb 14
Spirit Airlines Logo
10:49 am - 4:23 pmDTW-SJU
4h 34mnonstop
Spirit Airlines Logo
5:28 pm - 11:19 amSJU-DTW
18h 51m1 stop
$197Spirit Airlines
Find Deal
Sat, Jan 31 - Wed, Feb 4
Multiple Airlines Logo
10:49 am - 4:23 pmDTW-SJU
4h 34mnonstop
Multiple Airlines Logo
7:10 am - 5:18 pmSJU-DTW
11h 08m1 stop
$198Multiple Airlines
Find Deal
Sun, Jan 18 - Fri, Jan 23
Spirit Airlines Logo
7:21 pm - 4:39 amDTW-SJU
8h 18m1 stop
Spirit Airlines Logo
6:00 am - 9:44 amSJU-DTW
4h 44mnonstop
$199Spirit Airlines
Find Deal
Sun, Nov 9 - Sat, Nov 15
Spirit Airlines Logo
6:10 am - 5:19 pmDTW-SJU
10h 09m1 stop
Spirit Airlines Logo
3:44 pm - 11:29 pmSJU-DTW
8h 45m1 stop
$201Spirit Airlines
Find Deal
Fri, Jan 2 - Sat, Jan 10
Spirit Airlines Logo
6:45 pm - 11:46 amDTW-SJU
16h 01m1 stop
Spirit Airlines Logo
6:00 am - 9:44 amSJU-DTW
4h 44mnonstop
$202Spirit Airlines
Find Deal
Fri, Nov 14 - Sat, Nov 22
Frontier Logo
12:24 pm - 2:54 amDTW-SJU
13h 30m1 stop
Frontier Logo
9:54 pm - 7:56 amSJU-DTW
11h 02m1 stop
$211Frontier
Find Deal
Mon, Feb 23 - Fri, Feb 27
Frontier Logo
6:07 pm - 2:50 amDTW-SJU
7h 43m1 stop
Frontier Logo
7:00 am - 2:13 pmSJU-DTW
8h 13m1 stop
$236Frontier
Find Deal
Mon, Feb 23 - Fri, Feb 27
Frontier Logo
6:07 pm - 2:50 amDTW-SJU
7h 43m1 stop
Frontier Logo
7:00 am - 2:13 pmSJU-DTW
8h 13m1 stop
$237Frontier
Find Deal

Everything you should know

Our travelers' advice
AI-generated summary based on content written by travel experts
Delta's Comfort Plus offers extra legroom for comfort.
Spirit's Big Front Seat provides more width and legroom.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Spirit Airlines
Cheapest • from $192 (round-trip)
Southwest
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Video guide: How to find cheap flights to San Juan
Watch video
Watch video
Watch video
Watch video
When to travel
September
Cheapest • 37% price drop
December
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$192
Overall average: $386
Spirit Airlines
Sun 11/9Thu 11/13
DTW - SJU • 1 stop
Cheapest non-stop
$192
Typical prices: $446-$881
Spirit Airlines
Mon 2/9Fri 2/13
DTW - SJU • Non-stop
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to San Juan!
Booking Insights

KAYAK's insights & trends for Detroit to San Juan flights

Get data-powered insights and trends into flights from Detroit to San Juan to help you find the cheapest flights, the best time to fly and much more.

Find cheap flights to San Juan
Find cheap flights to San Juan

Planning a trip from Detroit to San Juan? KAYAK’s data-powered insights will help you find cheap flights. Learn the best time to fly, how early to book your ticket, and other tips to secure great prices.

What’s the cheapest day of the week to fly from Detroit to San Juan?

The average price of all round-trip flights from Detroit Metropolitan Wayne County Airport to San Juan Luis Munoz Marin Intl Airport clicked on KAYAK for each day over the last 12 months.

When flying from Detroit to San Juan, you should consider leaving on a Monday and avoid Saturdays if you are looking for the best rates. For your return to Detroit, you’ll find the best rates on Thursdays and the most expensive ones on Mondays.

What is the cheapest month to fly from Detroit Metropolitan Wayne County Airport to San Juan Luis Munoz Marin Intl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Detroit Metropolitan Wayne County Airport to San Juan Luis Munoz Marin Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Detroit Metropolitan Wayne County Airport to San Juan Luis Munoz Marin Intl Airport is September, where tickets cost $235 (return) on average. On the other hand, the most expensive months are December and March, where the average cost of round-trip tickets is $502 and $499 respectively.

Can I save money by flying with a layover from Detroit Metropolitan Wayne County Airport to San Juan Luis Munoz Marin Intl Airport?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $451 on average.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Detroit Metropolitan Wayne County Airport to San Juan Luis Munoz Marin Intl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Detroit Metropolitan Wayne County Airport to San Juan Luis Munoz Marin Intl Airport, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 3 weeks before departure.

Expert advice

Expert advice for your flight from Detroit to San Juan

 
Snippets provided in this section are AI-generated based on a summarization of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
Spirit Airlines

Spirit's Big Front Seat offers 20-inch width and 11” extra legroom for added comfort.


Spirit's Wi-Fi offers gate-to-gate connectivity, with browsing and streaming packages available.

Delta

Delta's Comfort Plus seats offer up to three inches extra legroom for added comfort.


Delta offers free Wi-Fi for SkyMiles members on domestic flights, including messaging services.

Read more about Deltaby Stefanie Waldek
Airports
DTW

For early departures, consider airport hotels offering overnight stays and shuttle services to DTW, saving time and hassle in the morning.

Read more about DTWby Ramsey Qubein
SJU

For quick access to San Juan, taxis or Uber are efficient options, taking about 25 minutes to Old San Juan.

Read more about SJUby Gabriel Leigh
Our travel experts
Joe Cortez

Joe Cortez

Expert on Spirit Airlines

Joe Cortez

Joe Cortez

Joe Cortez is a seasoned managing editor in aviation with over a decade of industry experience. His work has been featured on prominent platforms such as FlyerTalk and TripSavvy, establishing him as a respected voice in aviation journalism.

Read more
Stefanie Waldek

Stefanie Waldek

Expert on Delta

Stefanie Waldek

Stefanie Waldek

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Read more
Ramsey Qubein

Ramsey Qubein

Expert on DTW

Ramsey Qubein

Ramsey Qubein

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more
Gabriel Leigh

Gabriel Leigh

Expert on SJU

Gabriel Leigh

Gabriel Leigh

Gabriel is a writer and video creator. As senior content producer for Flightradar24 and Monocle’s transport correspondent, he keeps a close eye on aviation in particular. He has also written travel articles for the likes of The New York Times. Born in New York but raised around the world, he now lives in Sweden. He’s been to 75 countries, flying 2.3 million miles on 113 airlines and through 234 airports in the process.

Read more

Good to know

Low seasonSeptember
Cheapest flight$75
Best time to beat the crowds with an average 37% drop in price.
Most popular time to fly with an average 34% increase in price.
Flight from Detroit to San Juan

When to book flights from Detroit to San Juan

Are your dates flexible? Find out the best times to travel from Detroit to San Juan based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Detroit to San Juan flights

  • What is the cheapest flight from Detroit Metropolitan Wayne County Airport to San Juan Luis Munoz Marin Intl Airport?

    In the last 3 days, the lowest price for a flight from Detroit Metropolitan Wayne County Airport to San Juan Luis Munoz Marin Intl Airport was $75 for a one-way ticket and $192 for a round-trip.

  • Do I need a passport to fly between Detroit and San Juan?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Detroit and on arrival in San Juan.

  • Which airports will I be using when flying from Detroit to San Juan?

    Detroit airport is called Detroit Metropolitan Wayne County and the only airport in San Juan is San Juan Luis Munoz Marin Intl.

  • Which airlines offer Wi-Fi service onboard planes from Detroit to San Juan?

    Delta, American Airlines, and Aeromexico offer inflight Wi-Fi service on the Detroit to San Juan flight route.

  • Which aircraft models fly most regularly from Detroit to San Juan?

    The Boeing 737-900 is the aircraft model that flies most regularly on the Detroit to San Juan flight route.

  • Which airline alliances offer flights from Detroit to San Juan?

    Star Alliance, oneworld, and SkyTeam are the airline alliances operating flights between Detroit and San Juan, with Star Alliance being the most commonly used for this route.

  • On which days can I fly direct from Detroit to San Juan?

    There are nonstop flights from Detroit to San Juan on a daily basis.

  • Which is the best airline for flights from Detroit to San Juan, Southwest or Delta?

    The two airlines most popular with KAYAK users for flights from Detroit to San Juan are Southwest and Delta. With an average price for the route of $555 and an overall rating of 8.0, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $590 and an overall rating of 7.9.

  • How does KAYAK find such low prices on flights from Detroit to San Juan?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Detroit to San Juan.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Detroit to San Juan?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Juan from Detroit is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Detroit to San Juan?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Juan with an airline and back to Detroit with another airline. Booking your flights between Detroit and SJU can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Detroit to San Juan?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Juan from Detroit up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Detroit Metropolitan Wayne County Airport to San Juan Luis Munoz Marin Intl Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for $204 or less one-way and $400 or less round-trip.

Prefer to fly direct from Detroit to San Juan?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Detroit Metropolitan Wayne County to San Juan Luis Munoz Marin Intl.
Find which airlines fly direct from Detroit Metropolitan Wayne County Airport to San Juan Luis Munoz Marin Intl Airport, which days they fly and book direct flights.

Direct departures

Detroit Metropolitan Wayne County to San Juan Luis Munoz Marin Intl

Monday

Delta

Delta

Tuesday

Delta

Delta

Wednesday

Delta

Delta

Thursday

Delta

Delta

Friday

Delta

Delta

Saturday

Delta

Delta

Sunday

Delta

Delta

See more direct flights

Direct returns

San Juan Luis Munoz Marin Intl to Detroit Metropolitan Wayne County

Monday

Delta

Delta

Tuesday

Delta

Delta

Wednesday

Delta

Delta

Thursday

Delta

Delta

Friday

Delta

Delta

Saturday

Delta

Delta

Sunday

Delta

Delta

See more direct flights

Reviews of the top 5 airlines serving from Detroit to San Juan

 
See real verified KAYAK customer reviews for airlines flying from Detroit to San Juan. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Detroit to San Juan? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4241 reviews
8.0Comfort
7.5Entertainment
7.0Food
8.1Boarding
8.6Crew
Airline reviews

Ever since Southwest starting charging for bags, passengers don't want to pay to check their bags, so the gate agents have to beg people to check their roller bags now because there's "not enough space". This was a terrible business move by Southwest.

8.0 ExcellentGreg, Oct 2025OAK - BUR
Read more Southwest reviews

Ever since Southwest starting charging for bags, passengers don't want to pay to check their bags, so the gate agents have to beg people to check their roller bags now because there's "not enough space". This was a terrible business move by Southwest.

Full cans of soda would be nice. A choice between two snacks would be appreciated.

Tried watching free movie and it kept freezing so I couldn’t finish.

All was good. I just had a hard time getting connected to the WiFi/internet during the flight

Sacrament staff are always polite and helpful. Airport is easy to maneuver and boarding is straightforward.

Great flight. Outstanding Service. Southwest was able to put us on a direct flight to Denver when the connection could have been affected by a later arrival to Baltimore. The direct flight was less expensive that the flight with the connection in Baltimore.

Delays delays delays. Late taking off, late landing, wait for a gate, etc.

Boarded on time but once we were ready for take off, the crew determined that, although every seat was taken, somehow someone was on the wrong flight. Delay, delay delay, announcements and ended up with one person checking EVERY ID against their passenger Manifest only to figure out it was a "clerical error." We departed 54 minutes late causing me to run in the St. Louis Airport to make my connection and lose the priority boarding spot I had paid for. Unnecessary delay.

I was re-booked onto another flight because my original flight was delayed and I would have missed my connector. I ended up in the “C” group after paying extra to be in the “A “ group on the original flight. At least if you’re going to re-book people, re-book them into the same group.

Flight was delayed due to plane not passing inspection And one of the crew had to time out and we had to wait for another one A 3 hour delay

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

They ended up paying for the bag twice, but the counter wouldn't take my baggage receipt. Left it to me to resolve. Not sure how to resolve the issue.

The customer service before board was very rude and when I expressed my concerns about making the connecting flight she laughed and told me I bought the wrong ticket. I explained once it showed the flight was delayed it no longer let me change seats or anything. I was trying to upgrade to make sure I would get to the next gate on time.

Non stop on long haul is the way to go. Great experience

The aircraft interior is old and tired on this aircraft. The entertainment system never worked despite the crews attempt to reset the system.

The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.

Old plane and old configuration/seats but still comfortable for a morning flight

They changed planes and the new plane couldn’t carry enough fuel to fly across the country so we had to stop in Kansas City to refuel. Flight was delayed .

Flight was too crowded and seats are too small, especially since passengrs are getting larger. Having a middle seat is ALWAYS tough! Woman on my left was large & kept creeping in to my space. Flight personnel were great! Have more savory rather than sweet snacks please.

Flight was crowded and the woman sitting on my left was large & kept crouching in to my space. You need bigger seats or smaller passengers to fit into the seats you DO have! Snack were OK. Would appreciate if airlines had more savory rather than sweet snacks, thank you!

Wish some foods provided rather than just biscuit/cookie for flight more than 2 hours

Wish a flight with more than 2 hours with some snack rather than just cookie/biscuit.

The flight attendant, a black woman with curly hair who sat near Row 21, was wonderful and kind.

It was good..clean, comfy seat. Friendly warm welcoming crew. Was able to check my cabin luggage at the gate which I was able to pickup in a decent time from baggage claim. The app gave all updates from delays to baggage claim info. Overall smooth flight.

Flight was delayed leaving Dallas. Arrived about 2 hours later than scheduled.

Flight delayed and missed connection. Rescheduled flight cancelled after 6 hrs wait. Rerouted thru ORD, flight cancelled, overnight stay in ORD. Still in the air on new flight!

We are too tired and frustrated to comment politely at this point

Terrible. Our luggage was delayed and couldn’t be delivered for several days. We got bad information from the airline agents at baggage claim. We had to pick up our car so we wouldn’t be charged for an extra day. We got lost in the maze of airport parking. The baggage claim agents didn’t offer us any compensation for our extra time and expense. We are tired, hungry and very frustrated.

The flight was flawless and we even arrived between 20 and 25 minutes early!

The only thing to like was that we eventually got to our destination

Was supposed to take off 8:00 last night. Got delayed till 8:00 this morning

It was a no show, so we got put in hotels for a nite. The A320 plane was very modern and flite and crew (if a pilot shows up were fine). Price was very good.

Cheap flight but really uncomfortable. Seat cushions flimsy. Jammed in middle seat when flight is not full. They don’t even give you water

Flight was canceled without warning, gave credit that is hard to access. Awful airline.

Didn’t like that we weren’t even offered a water. And really didn’t like the male flight attendant, he had major attitude. The flight however was good, pilots got us there in time safely.

No Tumberlence smooth flight. Try to change the menu on Snacks.

We liked the woman who worked our gate and waited with us for our plane. We changed gates 3 times. Our flight was supposed to leave at 11:28am. We actually left after 5pm. It was not a good situation. This delay cost us a lot of money.

I didn't order food. I requested a Tomato juice and was given a boody mary mix. The serve needs to warn the customer what their given. It wasn't a huge deal, but I wasted $4.50.

Everything was fine, but there was no food or entertainment, so I didn’t know how to rate that.

It was a good an early bird pleasant and quiet

Terrible. The canceled my entire flight when I requested a refund for a trip frontier canceled trip one way.

Boarding was on time and plane departed as scheduled. There are obviously no amenities (food, drink, entertainment) on Frontier, but there also didn't seem to be any issues with luggage space either.

Inbound plane was on time and flight departed on time with no issues while boarding.

I knew going into this that Frontier, being a low cost carrier, would be pretty bare bones and charge for most extras but this was made up for by the fact that the airplane was a reasonably new Airbus, every employee was great and best of all, Everett Washington is an amazing airport - thanks Frontier for flying there!!!

i was unable to check in the flight. refund requested

It was well done. It was my first time flying with them and I was nervous b/c I have heard of many cancelled and/or delray flights. Everything went smoothly.

Just know that everything, and I mean everything is “ala cart”. 60$ just to put something in the overhead bin. I will never fly Frontier again nor do I recommend them to anyone else.

The single worst check in experience I could imagine. I’ll never do any business with Frontier or any affiliated company

Too many extra fees, uncomfortable, little leg room. Will not recommend this airline.

Everyone seemed to be in zone 1 for boarding. Maybe break it up a little. Otherwise, smooth flight.

Everything you need to know for your flight from Detroit to San Juan

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