$164+ 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 2/17. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SLP
Feb 25 — Mar 41
1 adult, Economy
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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
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 January 26, 2026.
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 January 26, 2026.
This SmartFares deal was found by Cheapflights users on 1/24. 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.
Mon 3/91:58 am
ORD
- SLP
1 stop14h 25m
Aeromexico
Tue 3/177:14 pm
SLP
- ORD
1 stop17h 31m
Aeromexico
Deal found 1/24![Aeromexico logo]()
$333
This SmartFares deal was found by Cheapflights users on 1/24. 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.
Mon 3/93:30 pm
ORD
- SLP
1 stop9h 29m
Aeromexico
Mon 3/168:22 am
SLP
- ORD
1 stop9h 27m
Aeromexico
Deal found 1/24![Aeromexico logo]()
$343
This SmartFares deal was found by Cheapflights users on 1/24. 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.
Mon 3/910:45 am
MDW
- SLP
1 stop8h 33m
Aeromexico
Mon 3/168:22 am
SLP
- MDW
1 stop7h 33m
Aeromexico
Deal found 1/24![Aeromexico logo]()
$348
This Delta deal was found by Cheapflights users on 1/23. 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 5/92:00 am
ORD
- SLP
1 stop8h 35m
Delta
Sun 5/176:10 am
SLP
- ORD
1 stop6h 55m
Delta
Deal found 1/23![Delta logo]()
$353
This Delta deal was found by Cheapflights users on 1/26. 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 10/316:00 am
ORD
- SLP
1 stop12h 19m
Delta
Sat 11/79:06 am
SLP
- ORD
1 stop13h 54m
Delta
Deal found 1/26![Delta logo]()
$358
This Delta deal was found by Cheapflights users on 1/25. 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.
Sun 2/221:11 am
ORD
- SLP
1 stop11h 03m
Delta
Mon 3/28:24 am
SLP
- ORD
1 stop10h 25m
Delta
Deal found 1/25![Delta logo]()
$363
This United Airlines deal was found by Cheapflights users on 1/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/165:45 am
ORD
- SLP
1 stop15h 15m
United Airlines
Wed 2/2512:49 pm
SLP
- ORD
1 stop8h 39m
United Airlines
Deal found 1/24![United Airlines logo]()
$368
This Aeromexico deal was found by Cheapflights users on 1/25. 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.
Mon 2/166:00 am
MDW
- SLP
1 stop12h 25m
Aeromexico
Fri 2/208:29 am
SLP
- MDW
1 stop9h 16m
Aeromexico
Deal found 1/25![Aeromexico logo]()
$368
This Delta deal was found by Cheapflights users on 1/24. 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 2/219:34 am
MDW
- SLP
2 stops8h 51m
Delta
Sat 2/288:29 am
SLP
- MDW
1 stop14h 02m
Delta
Deal found 1/24![Delta logo]()
$372
This Mytrip deal was found by Cheapflights users on 1/25. 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.
Mon 2/238:16 pm
ORD
- SLP
2 stops17h 41m
Multiple Airlines
Mon 3/22:06 pm
SLP
- ORD
3 stops34h 34m
Multiple Airlines
Deal found 1/25![Multiple Airlines logo]()
$375
This Aeromexico deal was found by Cheapflights users on 1/25. 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.
Wed 5/271:45 pm
ORD
- SLP
2 stops22h 45m
Aeromexico
Mon 6/87:50 pm
SLP
- ORD
2 stops15h 10m
Aeromexico
Deal found 1/25![Aeromexico logo]()
$379
This Mytrip deal was found by Cheapflights users on 1/24. 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.
Mon 2/1610:44 am
ORD
- SLP
3 stops27h 13m
Multiple Airlines
Wed 2/252:06 pm
SLP
- ORD
2 stops21h 16m
Multiple Airlines
Deal found 1/24![Multiple Airlines logo]()
$392
Find 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 January 26, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | Expedia 3 stars |
Round-trip from | $333 (SmartFares) |
One-way from | $164 (Delta) |
Popular in | May |
Cheapest in | February |
Average price | $628 |
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 January 26, 2026.
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
Mon 3/9
3:30 pm-11:59 pm
1 stop9h 29m
San Luis Potosi
Tue 3/10
7:14 pm-1:45 pm
1 stop17h 31m
$353
ChicagoSan Luis Potosí
ORD - SLP
ORDSLP
Chicago O'Hare Intl
Tue 3/10
9:50 am-11:59 pm
2 stops15h 09m
San Luis Potosi
Tue 3/17
7:14 pm-12:29 pm
2 stops16h 15m
$358
ChicagoSan Luis Potosí
ORD - SLP
ORDSLP
Chicago O'Hare Intl
Sun 2/22
1:11 am-12:14 pm
1 stop11h 03m
San Luis Potosi
Mon 3/2
8:24 am-6:49 pm
1 stop10h 25m
$363
ChicagoSan Luis Potosí
ORD - SLP
ORDSLP
Chicago O'Hare Intl
Fri 2/27
2:54 pm-11:59 pm
1 stop9h 05m
San Luis Potosi
Mon 3/2
8:24 am-6:49 pm
1 stop10h 25m
$363
ChicagoSan Luis Potosí
ORD - SLP
ORDSLP
Chicago O'Hare Intl
Mon 2/16
5:45 am-9:00 pm
1 stop15h 15m
San Luis Potosi
Wed 2/25
12:49 pm-9:28 pm
1 stop8h 39m
$368
ChicagoSan Luis Potosí
ORD - SLP
ORDSLP
Chicago O'Hare Intl
Mon 2/16
6:45 am-6:25 pm
1 stop11h 40m
San Luis Potosi
Fri 2/20
8:29 am-9:01 pm
1 stop12h 32m
$368
ChicagoSan Luis Potosí
ORD - SLP
ORDSLP
Chicago O'Hare Intl
Sat 2/14
6:45 am-6:25 pm
1 stop11h 40m
San Luis Potosi
Mon 2/23
8:29 am-4:50 pm
1 stop8h 21m
$368
ChicagoSan Luis Potosí
ORD - SLP
ORDSLP
Chicago O'Hare Intl
Sat 2/14
5:25 am-6:25 pm
1 stop13h 00m
San Luis Potosi
Thu 2/19
8:58 am-11:56 pm
2 stops14h 58m
$368
ChicagoSan Luis Potosí
MDW - SLP
MDWSLP
Chicago Midway
Thu 2/19
10:49 am-6:25 pm
1 stop7h 36m
San Luis Potosi
Thu 2/26
8:29 am-10:31 pm
1 stop14h 02m
$368
ChicagoSan Luis Potosí
ORD - SLP
ORDSLP
Chicago O'Hare Intl
Sat 2/21
5:25 am-6:25 pm
1 stop13h 00m
San Luis Potosi
Sat 2/28
8:29 am-7:19 pm
1 stop10h 50m
$368
Showing 1-10 of 30 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, May is the cheapest month in which you can book a flight from Illinois to San Luis Potosí (average of $103). Flying from Illinois to San Luis Potosí in September is currently the most expensive (average of $247). 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.
How much does it cost to fly round-trip from Illinois to San Luis Potosí?
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.
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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 January 26, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$302 | Average$416 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$328 | Average$374 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$337 | Average$476 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$342 | Average$519 | FlexibilityNo cancel fee | On-time71% |