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San Luis Potosí

$110+ Cheap flights from Chicago (CHI) to San Luis Potosí, Mexico (SLP)

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 1/5. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — SLP
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheapflights Tip: The best prices from Chicago to San Luis Potosi are usually found in February or September, booked 41 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday

Cheap flight deals from Chicago to San Luis Potosí

Discover tips and strategies to find the most affordable flight options for your journey from Chicago (CHI) to San Luis Potosí (SLP). 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 September 11, 2025.

Round-trip from

$314
(SmartFares)

One-way from

$110
(American Airlines)

Popular in

December

Cheapest in

February

Average price

$367
From Chicago (CHI) to San Luis Potosi
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One-way flight from Chicago (CHI) to San Luis Potosi
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Highest demand for flights based on searches. 26% potential increase in price ($199 potential increase over avg. RT price).
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Cheapest flight prices on average. 11% potential price decrease ($60 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Chicago to San Luis Potosí

Cheapest flights from Chicago to San Luis Potosí
Explore the most affordable flight options available from Chicago to San Luis Potosí. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This SmartFares deal was found by Cheapflights users on 9/9. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/255:20 amORD - SLP
1 stop13h 44mAeromexico
Sat 11/18:28 amSLP - ORD
1 stop7h 32mAeromexico
Deal found 9/9$314
This Delta deal was found by Cheapflights users on 9/11. 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 11/115:32 amORD - SLP
2 stops14h 13mDelta
Tue 11/185:52 amSLP - ORD
1 stop7h 20mDelta
Deal found 9/11$327
This Delta deal was found by Cheapflights users on 9/11. 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.
Fri 10/247:10 amORD - SLP
2 stops11h 54mDelta
Tue 10/2812:52 pmSLP - ORD
1 stop9h 49mDelta
Deal found 9/11$332
This Delta deal was found by Cheapflights users on 9/10. 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.
Sat 10/1111:23 amORD - SLP
1 stop7h 41mDelta
Tue 10/1412:25 pmSLP - ORD
2 stops10h 33mDelta
Deal found 9/10$337
This Delta deal was found by Cheapflights users on 9/11. 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 11/116:00 amMDW - SLP
1 stop12h 18mDelta
Tue 11/188:28 amSLP - MDW
1 stop8h 10mDelta
Deal found 9/11$337
This Delta deal was found by Cheapflights users on 9/10. 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.
Thu 10/95:20 amORD - SLP
1 stop13h 44mDelta
Mon 10/138:55 amSLP - ORD
2 stops21h 55mDelta
Deal found 9/10$342
This Kiwi.com deal was found by Cheapflights users on 9/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2312:28 pmORD - SLP
1 stop26h 33mMultiple Airlines
Mon 10/274:27 pmSLP - ORD
1 stop24h 09mMultiple Airlines
Deal found 9/11$358
This Delta deal was found by Cheapflights users on 9/11. 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.
Sat 11/2211:15 amORD - SLP
1 stop7h 03mDelta
Tue 11/259:36 amSLP - ORD
1 stop13h 05mDelta
Deal found 9/11$366
This Kiwi.com deal was found by Cheapflights users on 9/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/235:20 pmMDW - SLP
1 stop21h 41mMultiple Airlines
Mon 10/272:51 pmSLP - MDW
1 stop7h 29mMultiple Airlines
Deal found 9/11$370
This Aeromexico deal was found by Cheapflights users on 9/11. 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 Aeromexico is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/142:57 pmORD - SLP
1 stop9h 14mAeromexico
Mon 11/178:28 amSLP - ORD
1 stop15h 34mAeromexico
Deal found 9/11$372
This Delta deal was found by Cheapflights users on 9/10. 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.
Thu 10/97:10 amORD - SLP
2 stops11h 54mDelta
Sun 10/128:55 amSLP - ORD
1 stop11h 29mDelta
Deal found 9/10$373
This Delta deal was found by Cheapflights users on 9/11. 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.
Thu 10/3010:40 amMDW - SLP
1 stop8h 38mDelta
Mon 11/38:28 amSLP - MDW
2 stops9h 57mDelta
Deal found 9/11$373

Cheapflights Fare Finder

 
Customize your flight search to find flights from Chicago to San Luis Potosí 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 September 11, 2025.
Use the filters below to find and compare flights from Chicago to San Luis Potosí that are best for you.

Fly from

Chicago

Fly to

San Luis Potosí

Route

Depart

Return

Price

ChicagoSan Luis Potosí

ORD - SLP

ORDSLP

Chicago O'Hare Intl

Tue 11/11

6:45 am-6:18 pm

1 stop11h 33m

San Luis Potosi

Tue 11/18

5:52 am-1:12 pm

1 stop7h 20m

$327

ChicagoSan Luis Potosí

ORD - SLP

ORDSLP

Chicago O'Hare Intl

Sun 2/1

5:50 am-5:49 pm

1 stop11h 59m

San Luis Potosi

Sun 2/8

8:43 pm-12:48 pm

1 stop16h 05m

$327

ChicagoSan Luis Potosí

ORD - SLP

ORDSLP

Chicago O'Hare Intl

Sat 11/15

6:45 am-6:18 pm

2 stops11h 33m

San Luis Potosi

Tue 11/18

5:52 am-1:12 pm

1 stop7h 20m

$332

ChicagoSan Luis Potosí

ORD - SLP

ORDSLP

Chicago O'Hare Intl

Sat 10/11

11:23 am-6:04 pm

1 stop7h 41m

San Luis Potosi

Tue 10/14

12:25 pm-11:58 pm

2 stops10h 33m

$337

ChicagoSan Luis Potosí

ORD - SLP

ORDSLP

Chicago O'Hare Intl

Thu 11/13

6:45 am-6:18 pm

1 stop11h 33m

San Luis Potosi

Mon 11/17

9:36 am-12:02 am

2 stops14h 26m

$337

ChicagoSan Luis Potosí

ORD - SLP

ORDSLP

Chicago O'Hare Intl

Sun 10/26

5:20 am-6:18 pm

1 stop13h 58m

San Luis Potosi

Sun 11/2

8:28 am-11:58 pm

1 stop15h 30m

$337

ChicagoSan Luis Potosí

ORD - SLP

ORDSLP

Chicago O'Hare Intl

Sat 10/25

6:45 am-6:04 pm

1 stop12h 19m

San Luis Potosi

Sat 11/1

8:38 am-11:58 pm

2 stops14h 20m

$337

ChicagoSan Luis Potosí

ORD - SLP

ORDSLP

Chicago O'Hare Intl

Fri 11/14

5:32 am-8:10 pm

2 stops14h 38m

San Luis Potosi

Mon 11/17

9:36 am-12:02 am

2 stops14h 26m

$337

ChicagoSan Luis Potosí

ORD - SLP

ORDSLP

Chicago O'Hare Intl

Fri 2/27

7:10 am-5:49 pm

1 stop10h 39m

San Luis Potosi

Sun 3/8

9:00 am-9:14 pm

1 stop11h 14m

$337

ChicagoSan Luis Potosí

MDW - SLP

MDWSLP

Chicago Midway

Sat 10/11

6:00 am-6:04 pm

1 stop13h 04m

San Luis Potosi

Mon 10/13

8:55 am-10:14 pm

1 stop12h 19m

$337

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 32 results
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Best time to book a flight from Chicago to San Luis Potosí

Have a flexible travel schedule? Discover the best time to fly to San Luis Potosí from Chicago 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 to San Luis Potosí

How far ahead should I book a flight from Chicago to San Luis Potosí?

Use this chart to determine the optimal time to book a round-trip flight from Chicago to San Luis Potosí. Price data was last updated on August 29, 2025.

To ensure you get the cheapest price possible for a flight from Chicago to San Luis Potosí, you should look to book at least 41 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Chicago to San Luis Potosí?

Currently, January is the cheapest month in which you can book a flight from Chicago to San Luis Potosí (average of $489). Flying from Chicago to San Luis Potosí in December is currently the most expensive (average of $867). 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 CHI to SLP?

Find hourly flight availability from Chicago to San Luis Potosí. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

One of the essential ways to save on airfare from Chicago to San Luis Potosí is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 10% on airfare.

What is the cheapest day to fly from Chicago to San Luis Potosí?

Use this chart to determine the cheapest time to fly round-trip from Chicago to San Luis Potosí. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Chicago to San Luis Potosí flight should consider departing on Wednesday at noon 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.

How much does it cost to fly round-trip from Chicago to San Luis Potosí?

What’s the top layover airport for flights from Chicago to San Luis Potosí?

Share of 1-stop round-trip flights from Chicago to San Luis Potosí chosen by Cheapflights users in the past 12 months, using the same layover each way.

Mexico City (MEX) – chosen by Cheapflights users on 50% of 1-stop itineraries from Chicago to San Luis Potosí on Cheapflights.

What’s the cheapest layover airport for flights from Chicago to San Luis Potosí?

Average round-trip fare for 1-stop flights from Chicago to San Luis Potosí, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Atlanta (ATL) is the most affordable 1-stop option, with an average round-trip price of $376.

What’s the fastest layover option from Chicago to San Luis Potosí?

Shortest average travel time for 1-stop one-way flights from Chicago to San Luis Potosí, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Houston (IAH) have the shortest average one-way travel time for 1-stop routes: 6h 53m.

Which airport typically offers the quickest layover for flights from Chicago to San Luis Potosí?

Average layover duration for 1-stop one-way flights from Chicago to San Luis Potosí, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Atlanta (ATL) offer the fastest connection on this route, with an average layover time of 2h 29m.

Reviews of airlines servicing San Luis Potosí

Get insights into the airlines that provide service to San Luis Potosí. 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 San Luis Potosí. Reviews last updated September 11, 2025.
Get a feel of what it's like to fly with Delta, Aeromexico, and United Airlines from Chicago to San Luis Potosí by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,960 reviews
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Aeromexico
7.5
Good
1,701 reviews
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,937 reviews
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Chicago to San Luis Potosí. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to San Luis Potosí from Chicago?

    Located just 7.8 mi from the city center, San Luis Potosi is the airport most travelers will use when flying to San Luis Potosí from Chicago. Booking flights from Chicago to San Luis Potosi (SLP) should be relatively easy as there are 0 daily inbound flights from Chicago from 4 different airlines.

  • How long is the flight from Chicago to San Luis Potosí?

    Aeromexico and Delta can get you from Chicago to San Luis Potosí in just under 11h 12m. Your travel time can differ by up to 21m. Airlines will cover a distance of 1556 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Chicago to San Luis Potosí round-trip?

    Currently priced at $306, Aeromexico will fly you from Chicago to San Luis Potosí and back. In addition to Aeromexico, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Delta and American Airlines - these airlines can fly you to your destination from $318 and $332, respectively. Aeromexico is priced at 45% lower than the current average price of a flight leaving 3 months from now.

  • Can I find deals for flights from Chicago to San Luis Potosí that include hotel bookings?

    Yes. In addition to deals on Chicago to San Luis Potosí flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Chicago to San Luis Potosí?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Chicago to San Luis Potosí.

  • Can I find deals for business class flights from Chicago to San Luis Potosí?

    Yes. Cheapflights offers flight deals from Chicago to San Luis Potosí 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 to San Luis Potosí?

    Currently, January is the cheapest month in which you can book a flight from Chicago to San Luis Potosí (average of $489). Flying from Chicago to San Luis Potosí in December is currently the most expensive (average of $867). 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

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Alternative routes for Chicago to San Luis Potosí

See prices for flight routes from nearby airports that may be better suited for you.
O'Hare Intl to San Luis Potosí flights
Midway to San Luis Potosí flights

Top 4 airlines flying from Chicago to San Luis Potosí

Discover the top 4 airlines that operate flights from Chicago to San Luis Potosí. 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
AeromexicoCheapest$306Average$420FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$318Average$380FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$332Average$510FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$337Average$524FlexibilityNo cancel feeOn-time69%

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