In terms of precipitation, rainfall in Chicago O'Hare Intl Airport ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Chicago O'Hare Intl Airport when rainfall is around 1.7 in.

If weather is an important factor for your trip to Chicago O'Hare Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

What are the most reliable airlines from San Juan Luis Munoz Marin Intl Airport to Chicago O'Hare Intl Airport?

Before booking your flight to Chicago O'Hare Intl Airport from San Juan Luis Munoz Marin Intl Airport, check out the most reliable airlines to get you to your destination on time: Spirit Airlines (99%), Air Canada (92%), United Airlines( 92%).

What are the most popular airlines that fly from San Juan Luis Munoz Marin Intl Airport to Chicago O'Hare Intl Airport?

Before booking your flight from San Juan Luis Munoz Marin Intl Airport to Chicago O'Hare Intl Airport check out the most popular airlines for this route: American Airlines, Delta or Frontier.

Can I find deals for flights from Luis Munoz Marin Intl to O'Hare Intl that include hotel bookings?

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

How can I find direct flights from Luis Munoz Marin Intl to O'Hare Intl?

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

Can I find deals for business class flights from Luis Munoz Marin Intl to O'Hare Intl?

Yes. Cheapflights offers flight deals from Luis Munoz Marin Intl to O'Hare 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.

$113+ Flights from San Juan Luis Munoz Marin Intl Airport to Chicago O'Hare Intl Airport

Q: How much does it cost to fly round-trip from San Juan Luis Munoz Marin Intl Airport to Chicago O'Hare Intl Airport?

Airfare is typical for this route at the moment. San Juan Luis Munoz Marin Intl Airport to Chicago O'Hare Intl Airport flights typically cost between $212 and $398 in August. The cheapest round-trip price found within the last 3 days was $231 on Spirit Airlines (Aug 8-Aug 16).

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Find cheap flights from Luis Munoz Marin Intl to O'Hare 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.

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Cheapflights Tip: The best prices from San Juan Luis Munoz Marin Intl to Chicago O'Hare Intl are usually found in February or August, booked 67 days in advance, depart on a Friday or Thursday and return on a Monday

Cheap flight deals from Luis Munoz Marin Intl to O'Hare Intl

Round-trip from	$231 (eDestinos)
One-way from	$113 (eDestinos)
Popular in	June
Cheapest in	February
Average price	$313
Good round-trip deal	$273 or less
Good one-way deal	$190 or less

From San Juan Luis Munoz Marin Intl to Chicago O'Hare Intl

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One-way flight from San Juan Luis Munoz Marin Intl to Chicago O'Hare Intl

Search Deals

Highest demand for flights based on searches. 10% potential increase in price ($36 potential increase over avg. RT price).

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Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).

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Average for round-trip flights in July 2025

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Price to beat on a round-trip flight from San Juan Luis Munoz Marin Intl to Chicago O'Hare Intl.

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Price to beat on a one-way flight from San Juan Luis Munoz Marin Intl to Chicago O'Hare Intl.

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Find flight deals from Luis Munoz Marin Intl to O'Hare Intl

Cheapest flights from Luis Munoz Marin Intl to O'Hare Intl
Explore the most affordable flight options available from Luis Munoz Marin Intl to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 28, 2025.

Fri 8/86:00 amSJU - ORD

Nonstop5h 16mSpirit Airlines

Sat 8/166:56 amORD - SJU

1 stop16h 01mSpirit Airlines

Deal found 7/26

$231

Sat 8/164:54 pmSJU - ORD

1 stop24h 44mMultiple Airlines

Sat 8/2312:55 pmORD - SJU

Nonstop4h 45mMultiple Airlines

Deal found 7/28

$232

Thu 8/2812:59 amSJU - ORD

1 stop12h 21mFrontier

Mon 9/15:10 amORD - SJU

1 stop8h 16mFrontier

Deal found 7/27

$252

Best flights from Luis Munoz Marin Intl to O'Hare Intl
Discover carefully curated flight deals from Luis Munoz Marin Intl to O'Hare Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 28, 2025.

Fri 8/86:00 amSJU - ORD

Nonstop5h 16mSpirit Airlines

Sat 8/166:56 amORD - SJU

1 stop16h 01mSpirit Airlines

Deal found 7/26

$231

Sat 8/164:54 pmSJU - ORD

1 stop24h 44mMultiple Airlines

Sat 8/2312:55 pmORD - SJU

Nonstop4h 45mMultiple Airlines

Deal found 7/28

$232

Thu 8/288:13 pmSJU - ORD

1 stop23h 28mFrontier

Sun 8/315:10 amORD - SJU

1 stop8h 16mFrontier

Deal found 7/27

$252

Last-minute flights from Luis Munoz Marin Intl to O'Hare Intl
Discover last-minute flight deals from Luis Munoz Marin Intl to O'Hare Intl. Data last updated July 28, 2025 and is based on user searches.

Sat 8/23:08 pmSJU - ORD

1 stop9h 21mFrontier

Sun 8/175:01 amORD - SJU

1 stop8h 17mFrontier

Deal found 7/27

$234

Tue 8/59:44 amSJU - ORD

Nonstop5h 14mSpirit Airlines

Tue 8/196:56 amORD - SJU

1 stop16h 01mSpirit Airlines

Deal found 7/28

$233

Thu 8/73:40 amSJU - ORD

1 stop20h 51mMultiple Airlines

Mon 8/114:36 pmORD - SJU

1 stop7h 59mMultiple Airlines

Deal found 7/27

$244

Fri 8/86:00 amSJU - ORD

Nonstop5h 16mSpirit Airlines

Sat 8/166:56 amORD - SJU

1 stop16h 01mSpirit Airlines

Deal found 7/26

$231

Fri 8/83:08 pmSJU - ORD

1 stop10h 14mFrontier

Sat 8/165:01 amORD - SJU

1 stop8h 17mFrontier

Deal found 7/27

$246

Sat 8/164:54 pmSJU - ORD

1 stop24h 44mMultiple Airlines

Sat 8/2312:55 pmORD - SJU

Nonstop4h 45mMultiple Airlines

Deal found 7/28

$232

One-way flights from Luis Munoz Marin Intl to O'Hare Intl
Search for one-way flight options from Luis Munoz Marin Intl to O'Hare Intl. Find affordable one-way fares based on user searches. Data last updated July 28, 2025.

Sat 9/64:42 pmSJU - ORD

1 stop28h 02mFrontier

Deal found 7/27

$113

Thu 8/217:40 pmSJU - ORD

Nonstop5h 03mSpirit Airlines

Deal found 7/26

$115

Cheapflights Fare Finder

Use the filters below to find and compare flights from San Juan Luis Munoz Marin Intl Airport to Chicago O'Hare Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San JuanChicago

SJU - ORD

SJUORD

San Juan Luis Munoz Marin Intl

Fri 8/8

6:00 am-10:16 am

Nonstop5h 16m

Chicago O'Hare Intl

Sat 8/16

6:56 am-11:57 pm

1 stop16h 01m

$231

San JuanChicago

SJU - ORD

SJUORD

San Juan Luis Munoz Marin Intl

Sat 8/16

4:54 pm-4:38 pm

1 stop24h 44m

Chicago O'Hare Intl

Sat 8/23

12:55 pm-6:40 pm

Nonstop4h 45m

$232

San JuanChicago

SJU - ORD

SJUORD

San Juan Luis Munoz Marin Intl

Thu 8/28

8:13 pm-6:41 pm

1 stop23h 28m

Chicago O'Hare Intl

Sun 8/31

5:10 am-2:26 pm

1 stop8h 16m

$252

San JuanChicago

SJU - ORD

SJUORD

San Juan Luis Munoz Marin Intl

Sat 9/6

4:42 pm-7:44 pm

1 stop28h 02m

$113

San JuanChicago

SJU - ORD

SJUORD

San Juan Luis Munoz Marin Intl

Thu 8/21

7:40 pm-11:43 pm

Nonstop5h 03m

$115

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

The best insider tips for San Juan Luis Munoz Marin Intl Airport to Chicago O'Hare Intl Airport flights

Cheapflights partnered with top experts to bring you the best recommendations for your San Juan Luis Munoz Marin Intl Airport to Chicago O'Hare Intl Airport trip

Airlines

Spirit Airlines

Spirit's Big Front Seats offer 11 inches more legroom, ideal for comfort.

Spirit's Economy Plus Bundle includes both carry-on and check-in bags.

Read more about Spirit Airlinesby Daniel Scheffler

United Airlines

Basic Economy allows a personal item only, no carry-on bags without extra fees.

United First includes two free checked bags and priority perks on the ground.

Read more about United Airlinesby Harriet Baskas

Airports

SJU

Arrive two hours early for domestic flights at SJU due to unpredictable security wait times.

ORD

Take the 'L' train from ORD to Chicago to avoid traffic delays and save time.

Our travel experts

Daniel Scheffler

Expert on Spirit Airlines

Harriet Baskas

Expert on United Airlines

Ramsey Qubein

Expert on ORD

Brandon Schultz

Expert on SJU

Best time to book a flight from Luis Munoz Marin Intl to O'Hare Intl

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

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

The price you pay for your flight from San Juan Luis Munoz Marin Intl Airport to Chicago O'Hare Intl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 67 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from San Juan Luis Munoz Marin Intl Airport to Chicago O'Hare Intl Airport?

Currently, August is the cheapest month in which you can book a flight from San Juan Luis Munoz Marin Intl Airport to Chicago O'Hare Intl Airport (average of $245). Flying from San Juan Luis Munoz Marin Intl Airport to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $321). 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 SJU to ORD?

It’s typically best to fly out from San Juan Luis Munoz Marin Intl Airport to Chicago O'Hare Intl Airport in the evening. Doing so could potentially save you 50% on the flight price compared to flying at noon, which is usually more expensive.

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

Travelers seeking maximum savings on their San Juan Luis Munoz Marin Intl Airport to Chicago O'Hare Intl Airport flight should consider departing on Friday evenings when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from San Juan Luis Munoz Marin Intl Airport to Chicago O'Hare Intl Airport

The most flights from SJU to ORD are scheduled on a Saturday (10 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (8 on average).

How much does it cost to fly round-trip from San Juan Luis Munoz Marin Intl Airport to Chicago O'Hare Intl Airport?

Reviews of airlines servicing O'Hare Intl

Peruse reviews from past customers who have flown with Spirit Airlines and Frontier from San Juan Luis Munoz Marin Intl Airport to Chicago O'Hare Intl Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Spirit Airlines

6.3

Okay

8,034 reviews

Reviews

1 / 20

2.0

Mediocre

Anonymous,Jul 2025

LAS - DTW

Was the most uncomfortable seat I have ever sat in on an airplane

Spirit Airlines

6.3

Okay

8,034 reviews

Spirit Airlines

6.3

Okay

8,034 reviews

Reviews

1 / 20

2.0

Mediocre

Anonymous,Jul 2025

LAS - DTW

Was the most uncomfortable seat I have ever sat in on an airplane

Frontier

5.9

Fair

3,238 reviews

Spirit Airlines

6.3

Okay

8,034 reviews

Reviews

1 / 20

2.0

Mediocre

Anonymous,Jul 2025

LAS - DTW

Was the most uncomfortable seat I have ever sat in on an airplane

Related info for your journey

What are the cheapest airlines flying from San Juan Luis Munoz Marin Intl Airport to Chicago O'Hare Intl Airport round-trip?
Our cheapest airline available from San Juan Luis Munoz Marin Intl Airport to Chicago O'Hare Intl Airport is Spirit Airlines. Our recent data shows that you can find tickets from as low as $231 on this airline. An additional option worth looking into is Frontier, starting at $252. Spirit Airlines is currently priced 27% below the average price you’ll pay for this route.
What are the most reliable airlines from San Juan Luis Munoz Marin Intl Airport to Chicago O'Hare Intl Airport?
Before booking your flight to Chicago O'Hare Intl Airport from San Juan Luis Munoz Marin Intl Airport, check out the most reliable airlines to get you to your destination on time: Spirit Airlines (99%), Air Canada (92%), United Airlines( 92%).
What are the cheapest flights from San Juan Luis Munoz Marin Intl Airport to Chicago O'Hare Intl Airport?
Looking at all options, your cheapest flight can be booked for $127. While the most popular route (San Juan Luis Munoz Marin Intl - Chicago O'Hare Intl) can be booked for $199 on average our data indicates $1,810 when flying from San Juan Luis Munoz Marin Intl Airport to Chicago O'Hare Intl Airport.
Can I find deals for flights from Luis Munoz Marin Intl to O'Hare Intl that include hotel bookings?
Yes. In addition to deals on Luis Munoz Marin Intl to O'Hare Intl flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Luis Munoz Marin Intl to O'Hare Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Luis Munoz Marin Intl to O'Hare Intl.
Can I find deals for business class flights from Luis Munoz Marin Intl to O'Hare Intl?
Yes. Cheapflights offers flight deals from Luis Munoz Marin Intl to O'Hare 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 San Juan Luis Munoz Marin Intl Airport to Chicago O'Hare Intl Airport?
Currently, August is the cheapest month in which you can book a flight from San Juan Luis Munoz Marin Intl Airport to Chicago O'Hare Intl Airport (average of $245). Flying from San Juan Luis Munoz Marin Intl Airport to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $321). 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.

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Top 6 airlines flying from Luis Munoz Marin Intl to O'Hare Intl

Airline	Cheapest	Average	Flexibility	On-time
Spirit Airlines	Cheapest$137	Average$272	FlexibilityNo cancel fee	On-time65%
Frontier	Cheapest$137	Average$259	FlexibilityNo cancel fee	On-time62%
Delta	Cheapest$162	Average$374	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$219	Average$469	FlexibilityNo cancel fee	On-time69%
Southwest	Cheapest$257	Average$431	FlexibilityNo cancel fee	On-time63%
American Airlines	Cheapest$329	Average$479	FlexibilityNo cancel fee	On-time71%

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$113+ Cheap flights from Luis Munoz Marin Intl (SJU) to O'Hare Intl (ORD)

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 9/6. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Luis Munoz Marin Intl to O'Hare Intl with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from San Juan Luis Munoz Marin Intl to Chicago O'Hare Intl are usually found in February or August, booked 67 days in advance, depart on a Friday or Thursday and return on a Monday

Cheap flight deals from Luis Munoz Marin Intl to O'Hare Intl

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from Luis Munoz Marin Intl to O'Hare Intl

Cheapest flights from Luis Munoz Marin Intl to O'Hare IntlExplore the most affordable flight options available from Luis Munoz Marin Intl to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 28, 2025.

Explore the most affordable flight options available from Luis Munoz Marin Intl to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 28, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from San Juan Luis Munoz Marin Intl Airport to Chicago O'Hare Intl Airport that are best for you.

The best insider tips for San Juan Luis Munoz Marin Intl Airport to Chicago O'Hare Intl Airport flights

Cheapflights partnered with top experts to bring you the best recommendations for your San Juan Luis Munoz Marin Intl Airport to Chicago O'Hare Intl Airport trip

Airlines

Spirit Airlines

United Airlines

Airports

SJU

ORD

Our travel experts

Best time to book a flight from Luis Munoz Marin Intl to O'Hare Intl

Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from Luis Munoz Marin Intl with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from San Juan Luis Munoz Marin Intl Airport to Chicago O'Hare Intl Airport

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

Use this chart to determine the optimal time to book a round-trip flight from Luis Munoz Marin Intl to O'Hare Intl. Price data was last updated on July 25, 2025.

What is the cheapest month to book a flight from San Juan Luis Munoz Marin Intl Airport to Chicago O'Hare Intl Airport?

What is the cheapest time of day to fly from SJU to ORD?

Find hourly flight availability from Luis Munoz Marin Intl to O'Hare 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 28, 2025.

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

Use this chart to determine the cheapest time to fly round-trip from Luis Munoz Marin Intl to O'Hare Intl. Price data was last updated on July 27, 2025.

Weekly flight availability from San Juan Luis Munoz Marin Intl Airport to Chicago O'Hare Intl Airport

How much does it cost to fly round-trip from San Juan Luis Munoz Marin Intl Airport to Chicago O'Hare Intl Airport?

Reviews of airlines servicing O'Hare Intl

Related info for your journey

Find useful and relevant information for your journey from Luis Munoz Marin Intl to O'Hare 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 San Juan Luis Munoz Marin Intl Airport to Chicago O'Hare Intl Airport round-trip?

What are the most reliable airlines from San Juan Luis Munoz Marin Intl Airport to Chicago O'Hare Intl Airport?

What are the cheapest flights from San Juan Luis Munoz Marin Intl Airport to Chicago O'Hare Intl Airport?

Can I find deals for flights from Luis Munoz Marin Intl to O'Hare Intl that include hotel bookings?

How can I find direct flights from Luis Munoz Marin Intl to O'Hare Intl?

Can I find deals for business class flights from Luis Munoz Marin Intl to O'Hare Intl?

What is the cheapest month to book a flight from San Juan Luis Munoz Marin Intl Airport to Chicago O'Hare Intl Airport?

Traveling to a place near Chicago O'Hare Intl Airport?

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Alternative routes for Luis Munoz Marin Intl to O'Hare Intl

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Top 6 airlines flying from Luis Munoz Marin Intl to O'Hare Intl

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Cheapest flights from Luis Munoz Marin Intl to O'Hare Intl
Explore the most affordable flight options available from Luis Munoz Marin Intl to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 28, 2025.