$133+ Cheap flights from Illinois 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 8/14. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SLP
Aug 4 — Aug 111
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Illinois to San Luis Potosí 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.Cheap flight deals from Illinois to San Luis Potosí
Keep the following information in mind while searching for Illinois to San Luis Potosí flight deals. Data was last updated July 30, 2025.
Round-trip from | $268 (Mytrip) |
|---|---|
One-way from | $133 (Mytrip) |
Popular in | December |
Cheapest in | September |
Average price | $378 |
Find flight deals from Illinois to San Luis Potosí
Cheapest flights from Illinois to San Luis PotosíExplore the most affordable flight options available from Illinois to San Luis Potosí. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2025.
Explore the most affordable flight options available from Illinois to San Luis Potosí. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2025.
This Mytrip deal was found by Cheapflights users on 7/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/286:40 amORD - SLP
1 stop8h 10mMultiple Airlines
Tue 11/42:53 pmSLP - ORD
2 stops18h 30mMultiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$268
This Delta deal was found by Cheapflights users on 7/28. 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.
Mon 11/101:00 amORD - SLP
1 stop14h 17mDelta
Tue 11/184:03 pmSLP - ORD
1 stop7h 15mDelta
Deal found 7/28![Delta logo]()
$322
This Aeromexico deal was found by Cheapflights users on 7/30. 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.
Sat 10/185:20 amORD - SLP
1 stop13h 44mAeromexico
Thu 10/237:45 pmSLP - ORD
1 stop17h 10mAeromexico
Deal found 7/30![Aeromexico logo]()
$323
This Delta deal was found by Cheapflights users on 7/28. 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 8/306:00 amMDW - SLP
1 stop12h 50mDelta
Mon 9/89:00 amSLP - MDW
2 stops22h 35mDelta
Deal found 7/28![Delta logo]()
$328
This American Airlines deal was found by Cheapflights users on 7/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/3010:10 pmORD - SLP
1 stop14h 00mAmerican Airlines
Mon 9/812:01 pmSLP - ORD
1 stop8h 41mAmerican Airlines
Deal found 7/28![American Airlines logo]()
$337
This SmartFares deal was found by Cheapflights users on 7/28. 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.
Thu 8/1410:31 amMDW - SLP
1 stop6h 44mAeromexico
Wed 8/208:57 amSLP - MDW
1 stop7h 50mAeromexico
Deal found 7/28![Aeromexico logo]()
$337
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 7/318:39 pmMDW - SLP
2 stops20h 51mMultiple Airlines
Wed 8/62:26 pmSLP - MDW
1 stop22h 03mMultiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$854
Cheapflights Fare Finder
Customize your flight search to find flights from Illinois 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 July 30, 2025.
Use the filters below to find and compare flights from Illinois to San Luis Potosí that are best for you.
Fly from
Illinois
Fly to
San Luis Potosí
Route
Depart
Return
Price
ChicagoSan Luis Potosí
ORD - SLP
ORDSLP
Chicago O'Hare Intl
Tue 10/28
6:40 am-1:50 pm
1 stop8h 10m
San Luis Potosi
Tue 11/4
2:53 pm-9:23 am
2 stops18h 30m
$268
ChicagoSan Luis Potosí
ORD - SLP
ORDSLP
Chicago O'Hare Intl
Sat 10/18
5:20 am-6:04 pm
1 stop13h 44m
San Luis Potosi
Thu 10/23
7:45 pm-1:55 pm
1 stop17h 10m
$323
ChicagoSan Luis Potosí
ORD - SLP
ORDSLP
Chicago O'Hare Intl
Sat 8/30
9:47 am-5:50 pm
1 stop9h 03m
San Luis Potosi
Mon 9/8
9:00 am-12:45 pm
2 stops26h 45m
$328
ChicagoSan Luis Potosí
MDW - SLP
MDWSLP
Chicago Midway
Sat 8/30
6:17 pm-5:50 pm
2 stops24h 33m
San Luis Potosi
Mon 9/8
9:00 am-12:28 pm
2 stops26h 28m
$328
ChicagoSan Luis Potosí
ORD - SLP
ORDSLP
Chicago O'Hare Intl
Sat 8/30
10:10 pm-11:10 am
1 stop14h 00m
San Luis Potosi
Mon 9/8
12:01 pm-9:42 pm
1 stop8h 41m
$337
ChicagoSan Luis Potosí
MDW - SLP
MDWSLP
Chicago Midway
Thu 8/14
10:31 am-4:15 pm
1 stop6h 44m
San Luis Potosi
Wed 8/20
8:57 am-5:47 pm
1 stop7h 50m
$337
ChicagoSan Luis Potosí
MDW - SLP
MDWSLP
Chicago Midway
Mon 8/11
8:39 pm-11:52 am
2 stops16h 13m
San Luis Potosi
Mon 8/25
11:30 pm-4:05 pm
2 stops15h 35m
$946
ChicagoSan Luis Potosí
ORD - SLP
ORDSLP
Chicago O'Hare Intl
Thu 8/14
8:12 pm-1:24 pm
2 stops18h 12m
$133
ChicagoSan Luis Potosí
ORD - SLP
ORDSLP
Chicago O'Hare Intl
Thu 8/21
7:05 am-5:50 pm
1 stop11h 45m
$134
ChicagoSan Luis Potosí
MDW - SLP
MDWSLP
Chicago Midway
Thu 8/21
6:04 am-5:50 pm
1 stop12h 46m
$134
Showing 1-10 of 17 results
Best time to book a flight from Illinois to San Luis Potosí
Have a flexible travel schedule? Discover the best time to fly to San Luis Potosí from Illinois 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 Illinois to San Luis Potosí
What is the cheapest month to book a flight from Illinois to San Luis Potosí?
Currently, January is the cheapest month in which you can book a flight from Illinois to San Luis Potosí (average of $489). Flying from Illinois 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 IL to SLP?
Find hourly flight availability from Illinois 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 July 30, 2025.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to San Luis Potosí as you normally would.
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 July 30, 2025.
Read through reviews of airlines operating flights from Illinois to San Luis Potosí, such as Delta, KLM, and Aeromexico. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
8.0
Crew
8.5
Food
7.3
Boarding
8.2
Comfort
7.9
Entertainment
7.9
Reviews
1 / 20
10.0
ExcellentKim,May 2025
PIH - SLC
Overall
8.0
Crew
8.5
Food
7.3
Boarding
8.2
Comfort
7.9
Entertainment
7.9
Reviews
1 / 20
10.0
ExcellentKim,May 2025
PIH - SLC
Overall
8.0
Crew
8.5
Food
7.3
Boarding
8.2
Comfort
7.9
Entertainment
7.9
Reviews
1 / 20
10.0
ExcellentKim,May 2025
PIH - SLC
Overall
8.0
Crew
8.5
Food
7.3
Boarding
8.2
Comfort
7.9
Entertainment
7.9
Reviews
1 / 20
10.0
ExcellentKim,May 2025
PIH - SLC
Overall
8.0
Crew
8.5
Food
7.3
Boarding
8.2
Comfort
7.9
Entertainment
7.9
Reviews
1 / 20
10.0
ExcellentKim,May 2025
PIH - SLC
Overall
8.0
Crew
8.5
Food
7.3
Boarding
8.2
Comfort
7.9
Entertainment
7.9
Reviews
1 / 20
10.0
ExcellentKim,May 2025
PIH - SLC
Related info for your journey
Find useful and relevant information for your journey from Illinois 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.
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 Illinois to San Luis Potosí
See prices for flight routes from nearby airports that may be better suited for you.
Top 4 airlines flying from Illinois to San Luis Potosí
Discover the top 4 airlines that operate flights from Illinois 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 July 30, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$306 | Average$449 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$318 | Average$380 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$332 | Average$506 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$347 | Average$527 | FlexibilityNo cancel fee | On-time69% |