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Cheap flights from Chicago O'Hare Intl Airport to San Juan from $113

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago O'Hare Intl Airport to San Juan departing on 1/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Chicago O'Hare Intl Airport to San Juan

Cheap round-trip flights

Enter your travel dates to find the best prices.
Spirit Airlines Logo
10:12 am - 8:27 pmORD-SJU
8h 15m1 stop
Spirit Airlines Logo
4:12 pm - 7:23 pmSJU-ORD
5h 11mnonstop
$210Spirit Airlines
Find Deal
Thu, Nov 20 - Tue, Nov 25
Multiple Airlines Logo
12:09 pm - 12:16 amORD-SJU
10h 07m1 stop
Multiple Airlines Logo
1:59 am - 2:03 pmSJU-ORD
14h 04m1 stop
$211Multiple Airlines
Find Deal
Wed, Dec 10 - Sun, Dec 14
Multiple Airlines Logo
1:52 pm - 12:49 amORD-SJU
32h 57m2 stops
Multiple Airlines Logo
4:11 pm - 11:35 pmSJU-ORD
9h 24m1 stop
$212Multiple Airlines
Find Deal
Thu, Dec 4 - Mon, Feb 9
Multiple Airlines Logo
4:58 pm - 10:49 amORD-SJU
15h 51m1 stop
Multiple Airlines Logo
3:06 pm - 8:42 pmSJU-ORD
7h 36m1 stop
$213Multiple Airlines
Find Deal
Mon, Dec 1 - Fri, Dec 5
Frontier Logo
7:15 pm - 10:47 amORD-SJU
13h 32m1 stop
Frontier Logo
3:55 am - 2:19 pmSJU-ORD
12h 24m1 stop
$216Frontier
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Fri, Jan 23 - Thu, Jan 29
United Airlines Logo
2:20 pm - 9:00 pmORD-SJU
4h 40mnonstop
United Airlines Logo
4:52 pm - 8:20 pmSJU-ORD
5h 28mnonstop
$218United Airlines
Find Deal
Mon, Jan 19 - Fri, Jan 23
United Airlines Logo
1:00 pm - 12:36 amORD-SJU
9h 36m1 stop
United Airlines Logo
4:52 pm - 8:20 pmSJU-ORD
5h 28mnonstop
$223United Airlines
Find Deal
Sun, Jan 25 - Wed, Jan 28
Delta Logo
2:49 pm - 11:44 pmORD-SJU
6h 55m1 stop
Delta Logo
7:30 am - 4:54 pmSJU-ORD
11h 24m1 stop
$227Delta
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Mon, Jan 19 - Fri, Jan 23
Frontier Logo
5:20 am - 3:06 pmORD-SJU
7h 46m1 stop
Frontier Logo
7:00 am - 12:51 pmSJU-ORD
7h 51m1 stop
$231Frontier
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Fri, Jan 30 - Mon, Mar 2
American Airlines Logo
8:35 am - 3:18 pmORD-SJU
4h 43mnonstop
American Airlines Logo
6:00 am - 9:35 amSJU-ORD
5h 35mnonstop
$243American Airlines
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Sun, Jan 18 - Thu, Jan 22

Spirit Airlines flights from Chicago O'Hare Intl Airport to San Juan Luis Munoz Marin Intl Airport

Our best Spirit Airlines deals on Chicago O'Hare Intl Airport to San Juan Luis Munoz Marin Intl Airport flight tickets
Spirit Airlines
Nov 20
ORD10:12 amChicago O'Hare Intl
8h 15m
1 stop
SJU8:27 pmSan Juan Luis Munoz Marin Intl
Nov 25
SJU4:12 pmSan Juan Luis Munoz Marin Intl
5h 11m
ORD7:23 pmChicago O'Hare Intl
$210
Find similar
Spirit Airlines
Jan 8
ORD4:35 pmChicago O'Hare Intl
4h 43m
SJU11:18 pmSan Juan Luis Munoz Marin Intl
Jan 13
SJU2:38 pmSan Juan Luis Munoz Marin Intl
5h 22m
ORD6:00 pmChicago O'Hare Intl
$217
Find similar
Spirit Airlines
Dec 2
ORD8:41 amChicago O'Hare Intl
4h 36m
SJU3:17 pmSan Juan Luis Munoz Marin Intl
Dec 9
SJU6:00 amSan Juan Luis Munoz Marin Intl
16h 09m
1 stop
ORD8:09 pmChicago O'Hare Intl
$219
Find similar

Frontier flights from Chicago O'Hare Intl Airport to San Juan Luis Munoz Marin Intl Airport

Our best Frontier deals on Chicago O'Hare Intl Airport to San Juan Luis Munoz Marin Intl Airport flight tickets
Frontier
Jan 23
ORD7:15 pmChicago O'Hare Intl
13h 32m
1 stop
SJU10:47 amSan Juan Luis Munoz Marin Intl
Jan 29
SJU3:55 amSan Juan Luis Munoz Marin Intl
12h 24m
1 stop
ORD2:19 pmChicago O'Hare Intl
$216
Find similar
Frontier
Jan 30
ORD5:20 amChicago O'Hare Intl
7h 46m
1 stop
SJU3:06 pmSan Juan Luis Munoz Marin Intl
Mar 2
SJU7:00 amSan Juan Luis Munoz Marin Intl
7h 51m
1 stop
ORD12:51 pmChicago O'Hare Intl
$231
Find similar
Frontier
Nov 17
ORD5:05 amChicago O'Hare Intl
8h 14m
1 stop
SJU3:19 pmSan Juan Luis Munoz Marin Intl
Nov 24
SJU6:01 amSan Juan Luis Munoz Marin Intl
7h 33m
1 stop
ORD11:34 amChicago O'Hare Intl
$242
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Chicago O'Hare Intl Airport 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 November 3, 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to San Juan Luis Munoz Marin Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoSan Juan

ORD - SJU

ORDSJU

Chicago O'Hare Intl

Thu 11/20

10:12 am-8:27 pm

1 stop8h 15m

San Juan Luis Munoz Marin Intl

Tue 11/25

4:12 pm-7:23 pm

Nonstop5h 11m

$210

ChicagoSan Juan

ORD - SJU

ORDSJU

Chicago O'Hare Intl

Wed 12/10

12:09 pm-12:16 am

1 stop10h 07m

San Juan Luis Munoz Marin Intl

Sun 12/14

1:59 am-2:03 pm

1 stop14h 04m

$211

ChicagoSan Juan

ORD - SJU

ORDSJU

Chicago O'Hare Intl

Thu 12/4

1:52 pm-12:49 am

2 stops32h 57m

San Juan Luis Munoz Marin Intl

Mon 2/9

4:11 pm-11:35 pm

1 stop9h 24m

$212

ChicagoSan Juan

ORD - SJU

ORDSJU

Chicago O'Hare Intl

Mon 12/1

4:58 pm-10:49 am

1 stop15h 51m

San Juan Luis Munoz Marin Intl

Fri 12/5

3:06 pm-8:42 pm

1 stop7h 36m

$213

ChicagoSan Juan

ORD - SJU

ORDSJU

Chicago O'Hare Intl

Fri 1/23

7:15 pm-10:47 am

1 stop13h 32m

San Juan Luis Munoz Marin Intl

Thu 1/29

3:55 am-2:19 pm

1 stop12h 24m

$216

ChicagoSan Juan

ORD - SJU

ORDSJU

Chicago O'Hare Intl

Mon 1/19

2:20 pm-9:00 pm

Nonstop4h 40m

San Juan Luis Munoz Marin Intl

Fri 1/23

4:52 pm-8:20 pm

Nonstop5h 28m

$218

ChicagoSan Juan

ORD - SJU

ORDSJU

Chicago O'Hare Intl

Sun 1/25

1:00 pm-12:36 am

1 stop9h 36m

San Juan Luis Munoz Marin Intl

Wed 1/28

4:52 pm-8:20 pm

Nonstop5h 28m

$223

ChicagoSan Juan

ORD - SJU

ORDSJU

Chicago O'Hare Intl

Mon 1/19

2:49 pm-11:44 pm

1 stop6h 55m

San Juan Luis Munoz Marin Intl

Fri 1/23

7:30 am-4:54 pm

1 stop11h 24m

$227

ChicagoSan Juan

ORD - SJU

ORDSJU

Chicago O'Hare Intl

Fri 1/30

5:20 am-3:06 pm

1 stop7h 46m

San Juan Luis Munoz Marin Intl

Mon 3/2

7:00 am-12:51 pm

1 stop7h 51m

$231

ChicagoSan Juan

ORD - SJU

ORDSJU

Chicago O'Hare Intl

Sun 1/18

8:35 am-3:18 pm

Nonstop4h 43m

San Juan Luis Munoz Marin Intl

Thu 1/22

6:00 am-9:35 am

Nonstop5h 35m

$243

Flights are sorted by cheapest round-trip flights first.

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

How to get the cheapest flight ticket from Chicago O'Hare Intl Airport 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 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 January, then flying in April is also cheap. Prices for this month can be found on momondo for an average of $348.

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 Chicago O'Hare Intl Airport is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $392. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Thursday is the most expensive day to depart from Chicago O'Hare Intl Airport because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $444.

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

The cheapest time of day to fly to San Juan Luis Munoz Marin Intl Airport is in the evening when flights can be purchased for as low as $314. Flights in the morning are often more expensive with an average ticket price of $450.

What is the cheapest Chicago O'Hare Intl to San Juan Luis Munoz Marin Intl flight route?

Fly from Chicago O'Hare Intl to San Juan Luis Munoz Marin Intl for the best Chicago O'Hare Intl - San Juan Luis Munoz Marin Intl flight prices

How far in advance should I book a flight 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 Chicago O'Hare Intl Airport 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 $389 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 Chicago O'Hare Intl Airport for as low as $323 on momondo.

What cabin class options are available on Chicago O'Hare Intl to San Juan Luis Munoz Marin Intl flights?

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

How have Chicago O'Hare Intl Airport to San Juan Luis Munoz Marin Intl Airport flight prices changed over time?

As of November 2025, prices for Chicago O'Hare Intl Airport to San Juan Luis Munoz Marin Intl Airport flights are approximately 11% cheaper when compared to flights at the same time last year.

When to book flights from Chicago O'Hare Intl Airport to San Juan Luis Munoz Marin Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Chicago O'Hare Intl Airport 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 Chicago O'Hare Intl Airport to San Juan Luis Munoz Marin Intl Airport (ORD to SJU) flight deals and tips

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

Best Price Found

$181

Fastest flight time

4h 24m

Direct flights

Every day
The best one-way flight to San Juan Luis Munoz Marin Intl Airport from Chicago O'Hare Intl Airport in the past 72 hours is $181. The best round-trip flight deal from Chicago O'Hare Intl Airport to San Juan Luis Munoz Marin Intl Airport found on momondo in the last 72 hours is $358.
The fastest flight from Chicago O'Hare Intl Airport to San Juan Luis Munoz Marin Intl Airport takes 4h 24m
Direct flights go from Chicago O'Hare Intl Airport to San Juan Luis Munoz Marin Intl Airport every day.
Search flight deals

  • How far is Chicago O'Hare Intl to San Juan Luis Munoz Marin Intl by plane?

    The distance between Chicago O'Hare Intl and San Juan Luis Munoz Marin Intl is about 2072.5 mi. 4h 36m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Chicago O'Hare Intl Airport to San Juan Luis Munoz Marin Intl Airport?

    Prices for flights from Chicago O'Hare Intl Airport to San Juan Luis Munoz Marin Intl Airport refresh daily.

  • How many operators does momondo search for flights from Chicago O'Hare Intl Airport to San Juan Luis Munoz Marin Intl Airport?

  • How old do you have to be to fly from Chicago O'Hare Intl Airport 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 Chicago O'Hare Intl Airport 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 travel and health documents required for your trip to San Juan Luis Munoz Marin Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at San Juan Luis Munoz Marin Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Chicago O'Hare Intl Airport to San Juan Luis Munoz Marin Intl Airport?

  • What is the most popular airline from Chicago O'Hare Intl Airport to San Juan Luis Munoz Marin Intl Airport?

Best airlines flying from Chicago O'Hare Intl Airport to San Juan Luis Munoz Marin Intl Airport

Compare and see reviews for airlines that fly from Chicago O'Hare Intl Airport to San Juan Luis Munoz Marin Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $106Free CancellationRating
5.8
3,117 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $140Free CancellationRating
6.3
8,114 reviews
Search Spirit Airlines flights
DeltaPriceFrom $196Free CancellationRating
7.9
8,001 reviews
Search Delta flights
JetBluePriceFrom $271Free CancellationRating
7.2
2,907 reviews
Search JetBlue flights
United AirlinesPriceFrom $273Free CancellationRating
7.4
8,997 reviews
Search United Airlines flights
American AirlinesPriceFrom $357Free CancellationRating
7.2
11,036 reviews
Search American Airlines flights
SouthwestPriceFrom $385Free CancellationRating
8.0
4,238 reviews
Search Southwest flights

  • United Airlines Flights From Chicago O'Hare Intl Airport to San Juan Luis Munoz Marin Intl Airport

    United Airlines flies from Chicago O'Hare Intl Airport to San Juan Luis Munoz Marin Intl Airport around 14 times per week, with 8,997 momondo users rating the airline 7.4/10. The cheapest United Airlines deal from Chicago O'Hare Intl Airport to San Juan Luis Munoz Marin Intl Airport in the last 72 hours was $273 (round-trip), much lower than the average airfare cost of $532 for United Airlines flights on this route.

  • American Airlines Flights From Chicago O'Hare Intl Airport to San Juan Luis Munoz Marin Intl Airport

    American Airlines (7.2/10 from 11,036 reviews) operates around 5 flights from Chicago O'Hare Intl Airport to San Juan Luis Munoz Marin Intl Airport in any given week. The average American Airlines airfare for this route is around $524, with deals from around $357 rare but found on momondo. Referenced prices are for round-trip Chicago O'Hare Intl Airport to San Juan Luis Munoz Marin Intl Airport flight searches in the last 72 hours.

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
Caguas
Humacao
Rio Grande
Bayamón

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to San Juan from Chicago.

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

Flights from Chicago to San Juan with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo helps you find the best flight between Chicago and San Juan by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Yes. momondo can track prices for Chicago to San Juan flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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