SJU - DTW

$142 Find Cheap Flights from San Juan to Detroit

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Juan to Detroit departing on 6/10. 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 Detroit Metropolitan Wayne County Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Juan to Detroit, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Juan to Detroit, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$296
Typical prices: $278-$189
Frontier
Wed 9/23Wed 9/30
SJU - DTW • 1 stop
Cheapest non-stop
$533
Typical prices: $391-$227
JetBlue
Fri 7/10Thu 7/16
SJU - DTW • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
Spirit's Big Front Seat offers extra legroom for a fee.
San Juan Airport is compact and efficient for departures.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Cheapest • from $296 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
You can fly direct with Delta. Average duration is 4h 39m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Avoid delays
Most punctual • 89% on-time
Best time • Fewest delays
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $267 (round-trip)
Shortest trip • 6h 42m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 33% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 30% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Detroit!
Flight Deals
Booking Insights
Expert advice
Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Juan to Detroit 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 San Juan to Detroit

Wed, Sep 23 - Wed, Sep 30
Frontier Logo
6:05 am - 5:39 pm
SJU
-
DTW
11h 34m
1 stop
Frontier Logo
8:54 pm - 7:58 am
DTW
-
SJU
11h 04m
1 stop
$296Frontier
Wed, Aug 19 - Sat, Aug 22
Frontier Logo
5:15 pm - 12:42 am
SJU
-
DTW
7h 27m
1 stop
Frontier Logo
2:02 pm - 11:57 pm
DTW
-
SJU
9h 55m
1 stop
$310Frontier
Wed, Jul 15 - Sun, Jul 19
Frontier Logo
5:15 pm - 12:40 am
SJU
-
DTW
7h 25m
1 stop
Frontier Logo
7:25 pm - 2:11 am
DTW
-
SJU
6h 46m
1 stop
$316Frontier
Mon, Aug 24 - Thu, Aug 27
Frontier Logo
6:00 am - 1:07 pm
SJU
-
DTW
7h 07m
1 stop
Frontier Logo
12:42 pm - 12:44 am
DTW
-
SJU
12h 02m
1 stop
$324Frontier
Thu, Aug 20 - Wed, Aug 26
Frontier Logo
7:00 am - 12:42 am
SJU
-
DTW
17h 42m
2 stops
Frontier Logo
12:42 pm - 12:44 am
DTW
-
SJU
12h 02m
1 stop
$326Frontier
Fri, Jul 10 - Thu, Jul 16
Frontier Logo
6:00 am - 1:07 pm
SJU
-
DTW
7h 07m
1 stop
Frontier Logo
12:50 pm - 12:47 am
DTW
-
SJU
11h 57m
1 stop
$335Frontier
Tue, Jul 7 - Wed, Jul 15
Frontier Logo
6:00 am - 12:55 pm
SJU
-
DTW
6h 55m
1 stop
Frontier Logo
9:12 am - 4:05 pm
DTW
-
SJU
6h 53m
1 stop
$336Frontier
Wed, Aug 26 - Sat, Aug 29
Frontier Logo
6:00 am - 1:07 pm
SJU
-
DTW
7h 07m
1 stop
Frontier Logo
12:42 pm - 12:44 am
DTW
-
SJU
12h 02m
1 stop
$350Frontier
Thu, Jul 9 - Sun, Jul 12
Frontier Logo
5:15 pm - 12:40 am
SJU
-
DTW
7h 25m
1 stop
Frontier Logo
7:25 pm - 7:57 am
DTW
-
SJU
12h 32m
1 stop
$355Frontier
Tue, Jun 9 - Wed, Jul 22
Frontier Logo
5:15 pm - 12:44 am
SJU
-
DTW
7h 29m
1 stop
Frontier Logo
12:27 pm - 11:29 pm
DTW
-
SJU
11h 02m
1 stop
$356Frontier
Booking Insights

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

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

How much is a round-trip flight from San Juan Luis Munoz Marin Intl Airport to Detroit Metropolitan Wayne County Airport?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from San Juan Luis Munoz Marin Intl Airport to Detroit Metropolitan Wayne County Airport departing in September.

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

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

If your flying dates are flexible, you should consider flying to Detroit on a Thursday, as we generally find the cheapest rates on that day for this route. On the other hand, Monday is the most expensive day to fly from San Juan to Detroit. For your return ticket, we recommend flying on a Monday and avoiding Saturdays for the best deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Juan Luis Munoz Marin Intl Airport to Detroit Metropolitan Wayne County 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 San Juan Luis Munoz Marin Intl Airport to Detroit Metropolitan Wayne County Airport is January, where tickets cost $202 (return) on average. On the other hand, the most expensive months are May and March, where the average cost of round-trip tickets is $434 and $419 respectively.

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

No, with an average price for the route of $298, prices are generally cheapest when you fly direct.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from San Juan Luis Munoz Marin Intl Airport to Detroit Metropolitan Wayne County 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 San Juan Luis Munoz Marin Intl Airport to Detroit Metropolitan Wayne County Airport, you should book around 2 weeks before departure, which saves you about 33% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 23 weeks before departure.

Expert advice

Expert advice for your flight from San Juan to Detroit

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on Delta

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.

Ramsey Qubein

Ramsey Qubein

Expert on DTW

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.

Gabriel Leigh

Gabriel Leigh

Expert on SJU

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.

Good to know

Low seasonFebruary
Cheapest flight$142
Best time to beat the crowds with an average 15% drop in price.
Most popular time to fly and prices are also 10% lower on average.
Flight from San Juan to Detroit

When to book flights from San Juan to Detroit

Are your dates flexible? Find out the best times to travel from San Juan to Detroit 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 San Juan to Detroit flights

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

    In the last 7 days, the lowest price for a flight from San Juan Luis Munoz Marin Intl Airport to Detroit Metropolitan Wayne County Airport was $142 for a one-way ticket and $296 for a round-trip.

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

    Yes

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

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

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

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

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

    SkyTeam is the only airline alliance operating flights between San Juan and Detroit.

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

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

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

    The two airlines most popular with KAYAK users for flights from San Juan to Detroit are Delta and Spirit Airlines. With an average price for the route of $447 and an overall rating of 7.9, Delta is the most popular choice. Spirit Airlines is also a great choice for the route, with an average price of $245 and an overall rating of 6.2.

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

    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 San Juan to Detroit.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Detroit from San Juan 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 San Juan to Detroit?

    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 Detroit with an airline and back to San Juan with another airline. Booking your flights between San Juan and DTW 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 San Juan to Detroit?

    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 Detroit from San Juan 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 San Juan Luis Munoz Marin Intl Airport to Detroit Metropolitan Wayne County Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for $191 or less one-way and $486 or less round-trip.

Prefer to fly direct from San Juan to Detroit?

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

Direct departures

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

Direct returns

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

Reviews of the top 3 airlines serving from San Juan to Detroit

 
See real verified KAYAK customer reviews for airlines flying from San Juan to Detroit. 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 San Juan to Detroit? 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.
7.9
DeltaOverall score based on 8443 reviews
7.2Food
7.8Comfort
8.1Boarding
8.5Crew
7.8Entertainment
Airline reviews

Boarding in Amsterdam is always chaotic. More complicated than needs to be ( boarding pass checked twice, once for general security, then by the airline). The bathrooms on this flight are dirty, and smelly. The food was mediocre at best The crew was decent

6.0 GoodAnonymous, May 2026
AMS - DTW
Read more Delta reviews

Boarding in Amsterdam is always chaotic. More complicated than needs to be ( boarding pass checked twice, once for general security, then by the airline). The bathrooms on this flight are dirty, and smelly. The food was mediocre at best The crew was decent

Didn't like sitting on the waiting pad for 30 minutes right after departing the gate. If you're going to do that, just don't board so people can still get up and walk around in the terminal. My luggage was damaged by the baggage handlers.

The gentleman at the gate I think his name is RIE was exceptional

Loved the crew! Sucks that we went from 1 hour and 8 minute layover to a 3 hour layover. But weather sucks like that.

Everything could have benn better. Short fly, no food, no entertainment and no wifi.

On the return flight, flight attendant Britt went out of her way to inform passengers that several of us had tight connections.

Flight late, the waited for a long time for “personal” to arrive at gate to dock the plane in Rochester. So annoying. This flight was expected, why aren’t personel available for the jet bridge?

Kayak botched up the booking, i had to call delta and fix. In the process Delta failed to honor my comfort plus seat assignment that i had previously.

First class is comfortable. Enjoyed a movie and was able to relax compared to coach.

No pilots so we were two hours late taking off and then no gate agents when we arrived in Salt Lake.

The seats on this aircraft were so uncomfortable it was like sitting on high school gym bleachers. I’m not sure we will fly spirit again. I also paid for the so called shortcut security and ended up being told to get in the regular security line, don’t waste your money.

Spirit is awful, and cost me an extra $400. On the flight to the destination they staff was rude and did not even offer water during the flight. On the return flight, while on the way to the terminal, Spirit cancelled the flight. This is the second time this has happened, and I believe they should compensate for the additional cost for incurred for the return flight. Spirit simply offered reimbursement for their cancelled flight, and did not take into consideration the cost for a last-minute flight home. The TSA agents expressed how Spirit often cancels evening/night flights, and shows no concern for the passengers.

They didn’t put my luggage on my transfer so I had to spend the night in Detroit. They said my luggage would be here in the morning and they’re still searching for it. It did not arrive apparently.

We were delayed and the bag charge fees are very expensive.

The flight was supposed to leave at 6:22pm we are just now leaving the gate after deplaning twice at 1:07am.

Food and entertainment see irrelevant to rate them as that’s not really an option anymore. The flight was fast and friendly. The plane was immaculately clean.

Flight was cancelled without explanation or option for same day or next day flight

Staff was good! Didn't like how slow the luggage return was

Had to pay for my bag a mini weekender bag 100 dollar fee

I was waiting in line for the restroom onboard, the flight attendant told me to step back two rows and stay on the carpet. She was rude and I expected a tik tok experience with me getting thrown off the plane. She was rude and frankly there was no where else to stand.

There weren't enough employees at check in took awhile to get bags checked. There wasn't a wheel chair for me, I was sent to someone who turns out to work for a different airline, if My flight hadn't been delayed I probably would have missed my flight as it was, by the time I arrived at my gate, they started boarding in about 15 minutes. I don't know who took me to my gate, definitely was not the normal people who take passengers to the gate. I'm guessing she may have been in a management position. I wish I knew her name, she went beyond to help me. With that said everyone was kind, and were doing the best they could. So, I choose to say it was an Adventure, stressful start, but good. In the end went well. The situation was not only difficult for passengers but the employee's.

The staff at the check in counter was so rude. Made you feel Incompetent

Frontier scheduled a 40 minute connection in DEN. What they failed to mention was that they “close the doors” 20 mins prior to departure, which means you only have 20 mins. Not enough time. Possibly against DOT regulations. Filing complaint.

Flight was scheduled at 9:40pm. Got delayed to 10 am, the next day. crazy

The bag check, flight check-in, and onboard experience convinced my wife and me that we will actively go out of our way to avoid flying Frontier Airlines in the future. At bag check, we were informed that check-in could only be completed via the Frontier mobile app. Unfortunately, the app was extremely frustrating—sending us through repetitive, confusing loops that repeatedly forced us to decline add-on services with nearly every click. While most airline apps upsell, this one felt intentionally exhausting. As the process dragged on, we became genuinely concerned that my phone battery would die before check-in could be completed. We approached the bag check staff—who were standing together talking—and explained both our frustration and our predicament. They laughed. Later, my wife described the interaction as “gaslighting,” which felt accurate. We were then informed it would cost $25 per person simply to have our boarding passes printed. From that point forward, the tone of the experience was consistently hostile. The bag check employees were condescending and combative, behaving more like bullies than customer service staff. Unfortunately, that same attitude continued onboard. One flight attendant argued with me when I attempted to stow my backpack in the overhead bin. I explained that we had each paid $75 to check our bags specifically so we would not need to use carry-on space and could have adequate legroom. She demanded to see my ticket, pointed out that it said “no carry-on”—which I acknowledged—and I reiterated that this was precisely why we paid to check our bags. Her response was, “I don’t make the rules.” She then walked away, but not before asking if I “truly wanted to fly back to Chicago today?”—an unnecessary and unmistakable threat. It is also worth noting that despite booking our tickets together in the same transaction, we were not seated together. Upon our return to Chicago—where we could once again sit together—we compared onboard experiences. We both remarked on how unhappy the flight attendants appeared and how each of us was separately asked whether we would like to purchase a beverage. We declined. At no point was water mentioned as an option, leaving us with the clear impression that even water came at a cost—or that complimentary water, if available at all, was deliberately left unmentioned. Overall, the experience was shocking and deeply disappointing, but it was also a profound learning experience—one we will not forget and will not repeat. -Steve

Plane was hot and miserable and the crew was rude!

12 hour delay required getting on and off plane 3 times - would have at least liked to have been offered a snack or drink

They didn’t offer a water, even after I asked

Zero issues with this flight. Crew was outstanding and flight was super. Plane was clean and fine. The seats need more padding and water should be provided without cost. I recognize it's Frontier but there are some things that should still be part of the flight. But still very satisfied with the experience and quality.

They switched our terminal 3 times and we were delayed for four plus hours!!!

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

Information on your arrival and departure airports