Luis Munoz Marin Intl

$141+ Cheap flights from Midway (MDW) to Luis Munoz Marin Intl (SJU)

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 10/31. Fares are subject to change and may not be available on all flights or dates of travel.
MDW — SJU
Jul 26 — Aug 21
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Midway to Luis Munoz Marin Intl 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 Chicago Midway to San Juan Luis Munoz Marin Intl are usually found in November or May, booked 51 days in advance, depart on a Monday or Tuesday and return on a Tuesday

Cheap flight deals from Midway to Luis Munoz Marin Intl

Discover tips and strategies to find the most affordable flight options for your journey from Midway (MDW) to Luis Munoz Marin Intl (SJU). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 21, 2025.

Round-trip from

$279
(Frontier)

One-way from

$142
(Frontier)

Popular in

December

Cheapest in

November

Average price

$485

Good one-way deal

$238 or less
From Chicago Midway to San Juan Luis Munoz Marin Intl
One-way flight from Chicago Midway to San Juan Luis Munoz Marin Intl
Highest demand for flights based on searches. 5% potential increase in price ($21 potential increase over avg. RT price).
Cheapest flight prices on average. 4% potential price decrease ($17 potential savings vs. average RT price).
Average for round-trip flights in July 2025
Price to beat on a one-way flight from Chicago Midway to San Juan Luis Munoz Marin Intl.

Find flight deals from Midway to Luis Munoz Marin Intl

Cheapest flights from Midway to Luis Munoz Marin Intl
Explore the most affordable flight options available from Midway to Luis Munoz Marin Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 21, 2025.

This Frontier deal was found by Cheapflights users on 7/18. 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.
Thu 9/256:20 amMDW - SJU
1 stop6h 51mFrontier
Thu 9/2512:28 amSJU - MDW
1 stop7h 43mFrontier
Deal found 7/18$279
This Delta deal was found by Cheapflights users on 7/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/236:00 amMDW - SJU
1 stop9h 31mDelta
Thu 9/2512:58 pmSJU - MDW
1 stop9h 38mDelta
Deal found 7/18$351
This Southwest deal was found by Cheapflights users on 7/21. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/181:45 pmMDW - SJU
2 stops8h 45mSouthwest
Mon 9/228:15 amSJU - MDW
1 stop6h 50mSouthwest
Deal found 7/21$357

Cheapflights Fare Finder

Customize your flight search to find flights from Midway to Luis Munoz Marin Intl 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 July 21, 2025.
Use the filters below to find and compare flights from Chicago Midway Airport to San Juan Luis Munoz Marin Intl Airport that are best for you.

Fly from

Midway

Fly to

Luis Munoz Marin Intl

Route

Depart

Return

Price

ChicagoSan Juan

MDW - SJU

MDWSJU

Chicago Midway

Thu 9/25

6:20 am-2:11 pm

1 stop6h 51m

San Juan Luis Munoz Marin Intl

Thu 9/25

12:28 am-7:11 am

1 stop7h 43m

$279

ChicagoSan Juan

MDW - SJU

MDWSJU

Chicago Midway

Tue 9/23

6:00 am-4:31 pm

1 stop9h 31m

San Juan Luis Munoz Marin Intl

Thu 9/25

12:58 pm-9:36 pm

1 stop9h 38m

$351

ChicagoSan Juan

MDW - SJU

MDWSJU

Chicago Midway

Thu 9/18

1:45 pm-11:30 pm

2 stops8h 45m

San Juan Luis Munoz Marin Intl

Mon 9/22

8:15 am-2:05 pm

1 stop6h 50m

$357

ChicagoSan Juan

MDW - SJU

MDWSJU

Chicago Midway

Fri 10/31

6:15 am-2:15 pm

1 stop7h 00m

$141

ChicagoSan Juan

MDW - SJU

MDWSJU

Chicago Midway

Mon 9/15

12:50 pm-2:11 pm

3 stops24h 21m

$157

ChicagoSan Juan

MDW - SJU

MDWSJU

Chicago Midway

Tue 10/7

1:25 pm-10:45 pm

2 stops8h 20m

$176

ChicagoSan Juan

MDW - SJU

MDWSJU

Chicago Midway

Wed 12/31

10:08 am-11:19 pm

1 stop11h 11m

$251

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/19

Best time to book a flight from Midway to Luis Munoz Marin Intl

Have a flexible travel schedule? Discover the best time to fly to Luis Munoz Marin Intl from Midway 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 Chicago Midway Airport to San Juan Luis Munoz Marin Intl Airport

How far ahead should I book a flight from Chicago Midway Airport to San Juan Luis Munoz Marin Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from Midway to Luis Munoz Marin Intl. Price data was last updated on July 18, 2025.

Booking 51 days in advance of your planned departure date is, on average, the best time to get cheap flights from Chicago Midway Airport to San Juan Luis Munoz Marin Intl Airport. 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 Chicago Midway Airport to San Juan Luis Munoz Marin Intl Airport?

Currently, September is the cheapest month in which you can book a flight from Chicago Midway Airport to San Juan Luis Munoz Marin Intl Airport (average of $254). Flying from Chicago Midway Airport to San Juan Luis Munoz Marin Intl Airport 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 MDW to SJU?

Find hourly flight availability from Midway to Luis Munoz Marin Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 21, 2025.

It’s typically best to fly out from Chicago Midway Airport to San Juan Luis Munoz Marin Intl Airport in the evening. Doing so could potentially save you 29% on the flight price compared to flying in the morning, which is usually more expensive.

What is the cheapest day to fly from Chicago Midway Airport to San Juan Luis Munoz Marin Intl Airport?

Use this chart to determine the cheapest time to fly round-trip from Midway to Luis Munoz Marin Intl. Price data was last updated on February 10, 2025.

Travelers seeking maximum savings on their Chicago Midway Airport to San Juan Luis Munoz Marin Intl Airport flight should consider departing on Tuesday mornings when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Luis Munoz Marin Intl

Get insights into the airlines that provide service to Luis Munoz Marin Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Luis Munoz Marin Intl. Reviews last updated July 21, 2025.
Read reviews from past customers who have flown Southwest, Delta, and Frontier from Chicago Midway Airport to San Juan Luis Munoz Marin Intl Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Overall

8.0

Boarding

8.1

Food

7.0

Entertainment

7.6

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Overall

8.0

Boarding

8.1

Food

7.0

Entertainment

7.6

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
8.0
Very good

Overall

8.0

Boarding

8.1

Food

7.0

Entertainment

7.6

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Overall

8.0

Boarding

8.1

Food

7.0

Entertainment

7.6

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Related info for your journey

Find useful and relevant information for your journey from Midway to Luis Munoz Marin Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What are the cheapest airlines flying from Chicago Midway Airport to San Juan Luis Munoz Marin Intl Airport round-trip?

    Flying on Frontier is currently your cheapest option to San Juan Luis Munoz Marin Intl Airport, with prices starting at $279. Additional round-trip tickets that might be worth considering are offered by Delta and Southwest, with the lowest prices starting at $351 and $357, respectively. Frontier is currently priced 33% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Chicago Midway Airport to San Juan Luis Munoz Marin Intl Airport one-way?

    One-way options have recently been found by users for as low as $142 on Frontier. Other airlines that offer cheap prices include Delta from $176 and Southwest from $182 one-way.

  • What are the cheapest flights from Chicago Midway Airport to San Juan Luis Munoz Marin Intl Airport?

    The cheapest flight price from Chicago Midway Airport to San Juan Luis Munoz Marin Intl Airport is $226. On average you can expect to pay $238. The most popular route, (Chicago Midway - San Juan Luis Munoz Marin Intl), can usually be booked for $285.

  • Can I find deals for flights from Midway to Luis Munoz Marin Intl that include hotel bookings?

    Yes. In addition to deals on Midway to Luis Munoz Marin Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Midway to Luis Munoz Marin Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Midway to Luis Munoz Marin Intl.

  • Can I find deals for business class flights from Midway to Luis Munoz Marin Intl?

    Yes. Cheapflights offers flight deals from Midway to Luis Munoz Marin Intl 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 Chicago Midway Airport to San Juan Luis Munoz Marin Intl Airport?

    Currently, September is the cheapest month in which you can book a flight from Chicago Midway Airport to San Juan Luis Munoz Marin Intl Airport (average of $254). Flying from Chicago Midway Airport to San Juan Luis Munoz Marin Intl Airport 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

Traveling to a place near San Juan Luis Munoz Marin Intl Airport?

Book flights to San Juan Luis Munoz Marin Intl Airport if you plan to visit one of these locations
Dorado
Fajardo
Luquillo
Rio Grande
Humacao
Bayamón

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 Midway to Luis Munoz Marin Intl

See prices for flight routes from nearby airports that may be better suited for you.

Top 5 airlines flying from Midway to Luis Munoz Marin Intl

Discover the top 5 airlines that operate flights from Midway to Luis Munoz Marin Intl. 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 July 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$133Average$283FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$149Average$365FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$299Average$443FlexibilityNo cancel feeOn-time69%
DeltaCheapest$325Average$428FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$352Average$489FlexibilityNo cancel feeOn-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.