What are the cheapest airlines to fly from Illinois to San Luis Potosí one-way?

The cheapest airlines for a one-way flight from Illinois to San Luis Potosí are Aeromexico ($131), Delta ($136), and American Airlines ($146).

What are the most popular airlines that fly from Illinois to San Luis Potosí?

Consider American Airlines, Aeromexico or Delta when booking your flight. These represent the most popular airlines when flying from Illinois to San Luis Potosí.

How far in advance should I book a flight from Illinois to San Luis Potosí?

To save up to 82% on this flight, we recommend booking at least 42 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Illinois to San Luis Potosí from $429 1-2 weeks out and tickets from $541 for flights departing within the next 72 hours.

What is the cheapest month to fly from Illinois to San Luis Potosí?

Flights from Illinois to San Luis Potosí lean towards being more expensive in December. Prices are generally better when you fly from Illinois to San Luis Potosí in February, with the cheapest ticket starting at $311.

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

San Luis Potosi (SLP) is the airport you will fly into if you book a flight from Illinois to San Luis Potosí. It is only a 7.8 mi journey from San Luis Potosi (SLP) to San Luis Potosí’s city center.

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

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

How can I find direct flights from Illinois 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 Illinois to San Luis Potosí.

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

Yes. Cheapflights offers flight deals from Illinois 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.

$131+ Flights from Illinois to San Luis Potosí, Mexico

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Cheap flight deals from Illinois to San Luis Potosí

Most accurate provider	AranGrant 3 stars
Most trusted provider	AranGrant 3 stars
Round-trip from	$267 (American Airlines)
One-way from	$131 (Aeromexico)
Popular in	December
Cheapest in	February
Average price	$568

Provider with most accurate pricing for Chicago (CHI)-San Luis Potosi flight deals.

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Provider most trusted by Cheapflights users for Chicago (CHI)-San Luis Potosi flights.

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From Illinois to San Luis Potosi

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One-way flight from Illinois to San Luis Potosi

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Highest demand for flights based on searches. 25% potential increase in price ($189 potential increase over avg. RT price).

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Cheapest flight prices on average. 11% potential price decrease ($57 potential savings vs. average RT price).

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Average for round-trip flights in April 2025

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Find flight deals from Illinois to San Luis Potosí

Cheapest flights from Illinois to San Luis Potosí
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 April 24, 2025.

Wed 5/148:35 pmORD - SLP

1 stop16h 07mAmerican Airlines

Wed 5/215:30 amSLP - ORD

1 stop17h 26mAmerican Airlines

Deal found 4/23

$267

Wed 5/147:05 amORD - SLP

2 stops13h 45mDelta

Wed 5/2112:44 pmSLP - ORD

1 stop10h 11mDelta

Deal found 4/23

$301

Wed 6/410:25 amMDW - SLP

2 stops14h 17mDelta

Wed 6/118:54 amSLP - MDW

2 stops11h 51mDelta

Deal found 4/23

$333

Sun 5/185:30 amORD - SLP

2 stops10h 43mAeromexico

Wed 5/2112:44 pmSLP - ORD

1 stop10h 11mAeromexico

Deal found 4/23

$355

Mon 5/59:50 pmORD - SLP

1 stop14h 18mUnited Airlines

Mon 5/127:12 amSLP - ORD

1 stop13h 18mUnited Airlines

Deal found 4/23

$374

Fri 5/96:34 pmORD - SLP

1 stop21h 41mMultiple Airlines

Mon 5/1210:10 pmSLP - ORD

2 stops24h 25mMultiple Airlines

Deal found 4/23

$382

Wed 6/412:48 pmMDW - SLP

1 stop28h 23mAeromexico

Wed 6/116:04 amSLP - MDW

2 stops14h 41mAeromexico

Deal found 4/23

$530

Thu 7/175:30 pmORD - SLP

2 stops43h 34mWestJet

Sun 7/277:36 pmSLP - ORD

2 stops20h 08mWestJet

Deal found 4/23

$2,934

Best flights from Illinois to San Luis Potosí
Discover carefully curated flight deals from Illinois to San Luis Potosí that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 24, 2025.

Wed 5/148:35 pmORD - SLP

1 stop16h 07mAmerican Airlines

Wed 5/215:30 amSLP - ORD

1 stop17h 26mAmerican Airlines

Deal found 4/23

$267

Wed 5/147:05 amORD - SLP

2 stops13h 45mDelta

Wed 5/2112:44 pmSLP - ORD

1 stop10h 11mDelta

Deal found 4/23

$301

Wed 7/94:29 pmORD - SLP

1 stop8h 50mAeromexico

Tue 7/159:18 amSLP - ORD

1 stop11h 03mAeromexico

Deal found 4/23

$328

Mon 5/59:50 pmORD - SLP

1 stop14h 18mUnited Airlines

Mon 5/127:12 amSLP - ORD

1 stop13h 18mUnited Airlines

Deal found 4/23

$374

Fri 5/96:34 pmORD - SLP

1 stop21h 41mMultiple Airlines

Mon 5/1210:10 pmSLP - ORD

2 stops24h 25mMultiple Airlines

Deal found 4/23

$382

Wed 6/410:25 amMDW - SLP

2 stops14h 17mDelta

Wed 6/118:54 amSLP - MDW

2 stops11h 51mDelta

Deal found 4/23

$333

Wed 6/412:48 pmMDW - SLP

1 stop28h 23mAeromexico

Wed 6/116:04 amSLP - MDW

2 stops14h 41mAeromexico

Deal found 4/23

$530

Thu 7/175:30 pmORD - SLP

2 stops43h 34mWestJet

Sun 7/277:36 pmSLP - ORD

2 stops20h 08mWestJet

Deal found 4/23

$2,934

Last-minute flights from Illinois to San Luis Potosí
Discover last-minute flight deals from Illinois to San Luis Potosí. Data last updated April 24, 2025 and is based on user searches.

Wed 4/306:34 pmORD - SLP

1 stop25h 51mMultiple Airlines

Wed 5/74:24 pmSLP - ORD

1 stop21h 14mMultiple Airlines

Deal found 4/23

$391

Wed 4/306:00 amORD - SLP

1 stop6h 14mAmerican Airlines

Wed 5/215:30 amSLP - ORD

1 stop17h 26mAmerican Airlines

Deal found 4/23

$554

Wed 4/3010:37 amORD - SLP

1 stop9h 35mUnited Airlines

Wed 5/711:51 amSLP - ORD

1 stop10h 07mUnited Airlines

Deal found 4/23

$600

Wed 4/306:04 amMDW - SLP

2 stops13h 55mDelta

Wed 5/78:59 amSLP - MDW

2 stops11h 29mDelta

Deal found 4/23

$729

Sun 5/41:55 amORD - SLP

1 stop11h 01mDelta

Mon 5/1212:49 pmSLP - ORD

1 stop10h 06mDelta

Deal found 4/23

$490

Sun 5/41:55 amORD - SLP

1 stop11h 01mAeromexico

Mon 5/123:46 pmSLP - ORD

2 stops18h 56mAeromexico

Deal found 4/23

$496

Mon 5/59:50 pmORD - SLP

1 stop14h 18mUnited Airlines

Mon 5/127:12 amSLP - ORD

1 stop13h 18mUnited Airlines

Deal found 4/23

$374

Fri 5/96:34 pmORD - SLP

1 stop21h 41mMultiple Airlines

Mon 5/1210:10 pmSLP - ORD

2 stops24h 25mMultiple Airlines

Deal found 4/23

$382

Sun 5/116:00 amMDW - SLP

2 stops10h 13mAeromexico

Sun 5/182:46 pmSLP - MDW

2 stops25h 57mAeromexico

Deal found 4/23

$1,178

Wed 5/148:35 pmORD - SLP

1 stop16h 07mAmerican Airlines

Wed 5/215:30 amSLP - ORD

1 stop17h 26mAmerican Airlines

Deal found 4/23

$267

Wed 5/147:05 amORD - SLP

2 stops13h 45mDelta

Wed 5/2112:44 pmSLP - ORD

1 stop10h 11mDelta

Deal found 4/23

$301

Fri 5/164:06 pmORD - SLP

1 stop8h 25mAeromexico

Sat 5/248:49 amSLP - ORD

2 stops13h 28mAeromexico

Deal found 4/23

$328

One-way flights from Illinois to San Luis Potosí
Search for one-way flight options from Illinois to San Luis Potosí. Find affordable one-way fares based on user searches. Data last updated April 24, 2025.

Tue 5/131:27 pmORD - SLP

2 stops11h 32mAeromexico

Deal found 4/23

$131

Wed 8/276:00 amMDW - SLP

2 stops13h 21mAeromexico

Deal found 4/23

$132

Wed 5/1411:03 amORD - SLP

2 stops13h 56mDelta

Deal found 4/23

$136

Tue 5/276:00 amORD - SLP

1 stop17h 20mAmerican Airlines

Deal found 4/23

$146

Tue 6/2410:26 amMDW - SLP

2 stops14h 31mDelta

Deal found 4/23

$147

Mon 7/216:00 amMDW - SLP

1 stop8h 48mMultiple Airlines

Deal found 4/23

$235

Mon 7/217:25 amORD - SLP

3 stops40h 22mVolaris

Deal found 4/23

$876

Tue 5/277:10 amORD - SLP

3 stops13h 02mUnited Airlines

Deal found 4/23

$1,747

Cheapflights Fare Finder

Use the filters below to find and compare flights from Illinois to San Luis Potosí that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoSan Luis Potosí

ORD - SLP

ORDSLP

Chicago O'Hare Intl

Wed 5/14

8:35 pm-11:42 am

1 stop16h 07m

San Luis Potosi

Wed 5/21

5:30 am-11:56 pm

1 stop17h 26m

$267

ChicagoSan Luis Potosí

ORD - SLP

ORDSLP

Chicago O'Hare Intl

Wed 5/14

7:05 am-7:50 pm

2 stops13h 45m

San Luis Potosi

Wed 5/21

12:44 pm-11:55 pm

1 stop10h 11m

$301

ChicagoSan Luis Potosí

MDW - SLP

MDWSLP

Chicago Midway

Wed 6/4

10:25 am-11:42 pm

2 stops14h 17m

San Luis Potosi

Wed 6/11

8:54 am-9:45 pm

2 stops11h 51m

$333

ChicagoSan Luis Potosí

ORD - SLP

ORDSLP

Chicago O'Hare Intl

Sun 5/18

5:30 am-3:13 pm

2 stops10h 43m

San Luis Potosi

Wed 5/21

12:44 pm-11:55 pm

1 stop10h 11m

$355

ChicagoSan Luis Potosí

ORD - SLP

ORDSLP

Chicago O'Hare Intl

Mon 5/5

9:50 pm-11:08 am

1 stop14h 18m

San Luis Potosi

Mon 5/12

7:12 am-9:30 pm

1 stop13h 18m

$374

ChicagoSan Luis Potosí

ORD - SLP

ORDSLP

Chicago O'Hare Intl

Fri 5/9

6:34 pm-3:15 pm

1 stop21h 41m

San Luis Potosi

Mon 5/12

10:10 pm-11:35 pm

2 stops24h 25m

$382

ChicagoSan Luis Potosí

MDW - SLP

MDWSLP

Chicago Midway

Wed 6/4

12:48 pm-4:11 pm

1 stop28h 23m

San Luis Potosi

Wed 6/11

6:04 am-9:45 pm

2 stops14h 41m

$530

ChicagoSan Luis Potosí

ORD - SLP

ORDSLP

Chicago O'Hare Intl

Thu 7/17

5:30 pm-12:04 pm

2 stops43h 34m

San Luis Potosi

Sun 7/27

7:36 pm-4:44 pm

2 stops20h 08m

$2,934

ChicagoSan Luis Potosí

ORD - SLP

ORDSLP

Chicago O'Hare Intl

Tue 5/13

4:06 pm-11:59 pm

1 stop8h 53m

$131

ChicagoSan Luis Potosí

ORD - SLP

ORDSLP

Chicago O'Hare Intl

Wed 8/27

7:10 am-6:21 pm

2 stops12h 11m

$132

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/23

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?

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.

Rainfall in San Luis Potosí by month

In terms of precipitation, rainfall in San Luis Potosí ranges from 0.2 - 2.6 inches per month. June is typically the wettest month, when rainfall can reach 2.6 in. March is typically the driest time to visit San Luis Potosí when rainfall is around 0.2 in.

Temperature in San Luis Potosí by month

If weather is an important factor for your trip to San Luis Potosí, use this chart to help with planning. For those seeking warmer temperatures, May is the ideal time of year to visit, when temperatures reach an average of 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 55.4 F).

Reviews of airlines servicing San Luis Potosí

Read reviews from past customers who have flown Delta, Aeromexico and United Airlines from Illinois to San Luis Potosí. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,920 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta

8.0

Very good

7,920 reviews

Delta

8.0

Very good

7,920 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Aeromexico

7.5

Good

1,700 reviews

Delta

8.0

Very good

7,920 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines

7.4

Good

8,685 reviews

Delta

8.0

Very good

7,920 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,920 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

WestJet

7.2

Good

2,816 reviews

Delta

8.0

Very good

7,920 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

What airport do you fly into for flights to San Luis Potosí from Illinois?
San Luis Potosi (SLP) is the airport you will fly into if you book a flight from Illinois to San Luis Potosí. It is only a 7.8 mi journey from San Luis Potosi (SLP) to San Luis Potosí’s city center.
What are the cheapest airlines to fly from Illinois to San Luis Potosí one-way?
The cheapest airlines for a one-way flight from Illinois to San Luis Potosí are Aeromexico ($131), Delta ($136), and American Airlines ($146).
Can I find deals for flights from Illinois to San Luis Potosí that include hotel bookings?
Yes. In addition to deals on Illinois to San Luis Potosí flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Illinois 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 Illinois to San Luis Potosí.
Can I find deals for business class flights from Illinois to San Luis Potosí?
Yes. Cheapflights offers flight deals from Illinois 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 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top 4 airlines flying from Illinois to San Luis Potosí

Airline	Cheapest	Average	Flexibility	On-time
Aeromexico	Cheapest$300	Average$493	FlexibilityNo cancel fee	On-timeN/A
Delta	Cheapest$317	Average$462	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$318	Average$720	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$350	Average$550	FlexibilityNo cancel fee	On-time69%

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$131+ 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 5/13. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Illinois to San Luis Potosí with Cheapflights

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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 April 24, 2025.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

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 April 24, 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 April 24, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Illinois to San Luis Potosí that are best for you.

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.

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?

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 April 24, 2025.

Rainfall in San Luis Potosí by month

Plan your trip to San Luis Potosí by taking into account the average rainfall totals by month.

Temperature in San Luis Potosí by month

Plan your trip to San Luis Potosí by taking into account the average temperature totals by month.

Reviews of airlines servicing San Luis Potosí

Read reviews from past customers who have flown Delta, Aeromexico and United Airlines from Illinois to San Luis Potosí. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

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.

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

What are the cheapest airlines to fly from Illinois to San Luis Potosí one-way?

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

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

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

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

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

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Cheapest flights from Illinois to San Luis Potosí
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 April 24, 2025.