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San Luis Potosí

$354+ Cheap flights from Washington, D.C. (WAS) 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 11/29. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — SLP
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheap flight deals from Washington, D.C. to San Luis Potosí

Discover tips and strategies to find the most affordable flight options for your journey from Washington, D.C. (WAS) 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 15, 2025.

Round-trip from

$464
(Kiwi.com)

One-way from

$354
(Delta)
From Washington, D.C. (WAS) to San Luis Potosi
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One-way flight from Washington, D.C. (WAS) to San Luis Potosi
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Find flight deals from Washington, D.C. to San Luis Potosí

Cheapest flights from Washington, D.C. to San Luis Potosí
Explore the most affordable flight options available from Washington, D.C. to San Luis Potosí. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/14. 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 10/168:21 pmBWI - SLP
2 stops19h 40mMultiple Airlines
Tue 10/212:45 pmSLP - BWI
1 stop17h 43mMultiple Airlines
Deal found 9/14$464
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 10/169:42 pmBWI - SLP
1 stop18h 19mMultiple Airlines
Mon 10/202:51 pmSLP - BWI
2 stops17h 29mMultiple Airlines
Deal found 9/14$547
This SmartFares deal was found by Cheapflights users on 9/14. 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.
Wed 10/2910:18 amBWI - SLP
1 stop10h 00mAeromexico
Wed 11/58:28 amSLP - BWI
1 stop7h 49mAeromexico
Deal found 9/14$552
This SmartFares deal was found by Cheapflights users on 9/14. 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.
Wed 10/2912:27 pmIAD - SLP
1 stop7h 51mAeromexico
Wed 11/58:28 amSLP - IAD
1 stop9h 58mAeromexico
Deal found 9/14$562
This Delta deal was found by Cheapflights users on 9/15. 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.
Wed 11/54:01 pmIAD - SLP
1 stop8h 01mDelta
Tue 11/115:52 amSLP - IAD
1 stop7h 10mDelta
Deal found 9/15$571
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Thu 10/166:29 amBWI - SLP
2 stops14h 43mUnited Airlines
Tue 10/2111:51 amSLP - BWI
1 stop9h 07mUnited Airlines
Deal found 9/14$575
This Delta deal was found by Cheapflights users on 9/14. 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 10/1610:11 amIAD - SLP
1 stop9h 53mDelta
Tue 10/216:00 amSLP - IAD
1 stop7h 10mDelta
Deal found 9/14$575
This Delta deal was found by Cheapflights users on 9/14. 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 10/162:40 pmDCA - SLP
2 stops10h 51mDelta
Mon 10/208:55 amSLP - DCA
1 stop11h 45mDelta
Deal found 9/14$585
This Aeromexico deal was found by Cheapflights users on 9/14. 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.
Thu 10/166:00 amIAD - SLP
1 stop14h 04mAeromexico
Mon 10/207:30 pmSLP - IAD
2 stops21h 48mAeromexico
Deal found 9/14$585
This American Airlines deal was found by Cheapflights users on 9/13. 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.
Wed 11/57:43 amDCA - SLP
1 stop14h 37mAmerican Airlines
Tue 11/116:15 amSLP - DCA
2 stops10h 36mAmerican Airlines
Deal found 9/13$590
This American Airlines deal was found by Cheapflights users on 9/15. 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.
Wed 11/57:55 amIAD - SLP
2 stops14h 25mAmerican Airlines
Tue 11/116:15 amSLP - IAD
2 stops15h 52mAmerican Airlines
Deal found 9/15$590
This Delta deal was found by Cheapflights users on 9/14. 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 11/74:01 pmIAD - SLP
1 stop9h 10mDelta
Tue 11/115:52 amSLP - IAD
1 stop7h 10mDelta
Deal found 9/14$591

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington, D.C. 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 15, 2025.
Use the filters below to find and compare flights from Washington, D.C. to San Luis Potosí that are best for you.

Fly from

Washington, D.C.

Fly to

San Luis Potosí

Route

Depart

Return

Price

BaltimoreSan Luis Potosí

BWI - SLP

BWISLP

Baltimore/Washington

Thu 10/16

8:21 pm-2:01 pm

2 stops19h 40m

San Luis Potosi

Tue 10/21

2:45 pm-10:28 am

1 stop17h 43m

$464

BaltimoreSan Luis Potosí

BWI - SLP

BWISLP

Baltimore/Washington

Thu 10/16

9:42 pm-2:01 pm

1 stop18h 19m

San Luis Potosi

Mon 10/20

2:51 pm-10:20 am

2 stops17h 29m

$547

BaltimoreSan Luis Potosí

BWI - SLP

BWISLP

Baltimore/Washington

Wed 10/29

10:18 am-6:18 pm

1 stop10h 00m

San Luis Potosi

Wed 11/5

8:28 am-5:17 pm

1 stop7h 49m

$552

Washington, D.C.San Luis Potosí

IAD - SLP

IADSLP

Washington, D.C. Dulles Intl

Wed 10/29

12:27 pm-6:18 pm

1 stop7h 51m

San Luis Potosi

Wed 11/5

8:28 am-7:26 pm

1 stop9h 58m

$562

Washington, D.C.San Luis Potosí

IAD - SLP

IADSLP

Washington, D.C. Dulles Intl

Wed 11/5

4:01 pm-11:02 pm

1 stop8h 01m

San Luis Potosi

Tue 11/11

5:52 am-2:02 pm

1 stop7h 10m

$571

BaltimoreSan Luis Potosí

BWI - SLP

BWISLP

Baltimore/Washington

Thu 10/16

6:29 am-7:12 pm

2 stops14h 43m

San Luis Potosi

Tue 10/21

11:51 am-10:58 pm

1 stop9h 07m

$575

BaltimoreSan Luis Potosí

BWI - SLP

BWISLP

Baltimore/Washington

Wed 11/5

7:05 am-6:18 pm

1 stop12h 13m

San Luis Potosi

Tue 11/11

8:28 am-6:22 pm

1 stop8h 54m

$575

BaltimoreSan Luis Potosí

BWI - SLP

BWISLP

Baltimore/Washington

Thu 10/16

12:26 pm-6:04 pm

1 stop7h 38m

San Luis Potosi

Tue 10/21

9:30 am-6:41 pm

1 stop7h 11m

$575

BaltimoreSan Luis Potosí

BWI - SLP

BWISLP

Baltimore/Washington

Thu 10/16

7:05 am-6:04 pm

1 stop12h 59m

San Luis Potosi

Mon 10/20

8:55 am-12:41 am

1 stop13h 46m

$575

Washington, D.C.San Luis Potosí

IAD - SLP

IADSLP

Washington, D.C. Dulles Intl

Thu 10/16

6:00 am-6:04 pm

1 stop14h 04m

San Luis Potosi

Mon 10/20

7:30 pm-3:10 pm

1 stop17h 40m

$575

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

Showing 1-10 of 46 results
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Best time to book a flight from Washington, D.C. to San Luis Potosí

Have a flexible travel schedule? Discover the best time to fly to San Luis Potosí from Washington, D.C. 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 Washington, D.C. to San Luis Potosí

What is the cheapest month to book a flight from Washington, D.C. to San Luis Potosí?

Currently, September is the cheapest month in which you can book a flight from Washington, D.C. to San Luis Potosí (average of $449). Flying from Washington, D.C. 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 WAS to SLP?

Find hourly flight availability from Washington, D.C. 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 15, 2025.

It’s typically best to fly out from Washington, D.C. to San Luis Potosí in the morning. Doing so could potentially save you 17% on the flight price compared to flying in the afternoon, which is usually more expensive.

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 15, 2025.
Get a feel of what it's like to fly with American Airlines from Washington, D.C. 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.
American Airlines
7.2
Good
10,000 reviews

Comfort

7.2

Crew

8.0

Entertainment

6.9

Overall

7.2

Boarding

7.5

Food

6.4

Reviews

1 / 20
2.0
Mediocre

Jeremy,Sep 2025

SAN - PHL

Terrible. Bad customer service and unacceptable delay on the tarmac
American Airlines
7.2
Good
10,000 reviews
American Airlines
7.2
Good
10,000 reviews

Comfort

7.2

Crew

8.0

Entertainment

6.9

Overall

7.2

Boarding

7.5

Food

6.4

Reviews

1 / 20
2.0
Mediocre

Jeremy,Sep 2025

SAN - PHL

Terrible. Bad customer service and unacceptable delay on the tarmac

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. 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 Washington, D.C.?

    Most people fly into San Luis Potosi (SLP) if they book a flight to San Luis Potosí from Washington, D.C.. On average, San Luis Potosi has 0 inbound flights from Washington, D.C. per day from 1 airline. San Luis Potosi is conveniently located just 7.8 mi from San Luis Potosí’s city center.

  • How long is the flight from Washington, D.C. to San Luis Potosí?

    Departing from Washington, D.C. to San Luis Potosí will take you 8h 01m. Washington, D.C. and San Luis Potosí are separated by a distance of 1800 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What is the cheapest airline to fly from Washington, D.C. to San Luis Potosí round-trip?

    According to our current data, American Airlines ($650), offers the cheapest pricing from Washington, D.C. to San Luis Potosí.

  • What are the cheapest airlines to fly from Washington, D.C. to San Luis Potosí one-way?

    One-way options have recently been found by users for as low as $354 on Delta. Other airlines that offer cheap prices include Aeromexico from $440 and United Airlines from $560 one-way.

  • What are the most popular routes from Washington, D.C. to San Luis Potosí?

    While some choose either Washington, D.C. Reagan-National - San Luis Potosi or Baltimore/Washington - San Luis Potosi, Washington, D.C. Dulles Intl - San Luis Potosi is the most popular route from Washington, D.C. to San Luis Potosí.

  • Can I find deals for flights from Washington, D.C. to San Luis Potosí that include hotel bookings?

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

  • How can I find direct flights from Washington, D.C. 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 Washington, D.C. to San Luis Potosí.

  • Can I find deals for business class flights from Washington, D.C. to San Luis Potosí?

    Yes. Cheapflights offers flight deals from Washington, D.C. 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 Washington, D.C. to San Luis Potosí?

    Currently, September is the cheapest month in which you can book a flight from Washington, D.C. to San Luis Potosí (average of $449). Flying from Washington, D.C. 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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Alternative routes for Washington, D.C. to San Luis Potosí

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

Top airline flying from Washington, D.C. to San Luis Potosí

Discover the top airline that operate flights from Washington, D.C. 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 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$498Average$733FlexibilityNo cancel feeOn-time71%

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