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San Luis Potosí

$200+ 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 11/7. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — SLP
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
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 July 3, 2025.

Round-trip from

$400
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$908
From Washington, D.C. (WAS) to San Luis Potosi
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($69 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($43 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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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 July 3, 2025.

This Kiwi.com deal was found by Cheapflights users on 6/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/155:30 amBWI - SLP
2 stops9h 54mMultiple Airlines
Fri 8/222:26 pmSLP - BWI
1 stop19h 54mMultiple Airlines
Deal found 6/30$400
This Kiwi.com deal was found by Cheapflights users on 6/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/159:58 pmIAD - SLP
2 stops19h 35mMultiple Airlines
Fri 8/222:26 pmSLP - IAD
1 stop19h 36mMultiple Airlines
Deal found 6/30$549
This Delta deal was found by Cheapflights users on 7/2. 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 12/18:10 amBWI - SLP
1 stop10h 39mDelta
Thu 12/111:13 pmSLP - BWI
2 stops9h 59mDelta
Deal found 7/2$574
This SmartFares deal was found by Cheapflights users on 7/3. 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.
Sun 8/175:16 pmIAD - SLP
1 stop16h 04mAeromexico
Sun 8/246:10 amSLP - IAD
1 stop7h 16mAeromexico
Deal found 7/3$575
This American Airlines deal was found by Cheapflights users on 7/3. 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.
Sun 8/177:00 amBWI - SLP
1 stop15h 30mAmerican Airlines
Sun 8/2412:00 pmSLP - BWI
2 stops10h 33mAmerican Airlines
Deal found 7/3$580
This American Airlines deal was found by Cheapflights users on 6/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1010:15 amDCA - SLP
1 stop12h 26mAmerican Airlines
Wed 10/155:14 amSLP - DCA
1 stop11h 34mAmerican Airlines
Deal found 6/30$583
This Aeromexico deal was found by Cheapflights users on 7/1. 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 8/157:00 amBWI - SLP
1 stop11h 05mAeromexico
Sun 8/249:04 amSLP - BWI
1 stop7h 20mAeromexico
Deal found 7/1$614
This American Airlines deal was found by Cheapflights users on 7/1. 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.
Fri 7/1811:49 amIAD - SLP
1 stop12h 03mAmerican Airlines
Mon 8/412:20 pmSLP - IAD
1 stop8h 26mAmerican Airlines
Deal found 7/1$722
This Aeromexico deal was found by Cheapflights users on 7/3. 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.
Sun 8/176:00 amDCA - SLP
2 stops14h 29mAeromexico
Sun 8/246:10 amSLP - DCA
2 stops13h 15mAeromexico
Deal found 7/3$751
This United Airlines deal was found by Cheapflights users on 7/1. 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.
Wed 12/2410:06 pmIAD - SLP
1 stop14h 43mUnited Airlines
Wed 12/318:15 amSLP - IAD
1 stop14h 36mUnited Airlines
Deal found 7/1$831
This United Airlines deal was found by Cheapflights users on 7/1. 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.
Wed 12/246:00 amDCA - SLP
1 stop15h 15mUnited Airlines
Wed 12/318:15 amSLP - DCA
1 stop14h 30mUnited Airlines
Deal found 7/1$839
This Delta deal was found by Cheapflights users on 6/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/247:20 amDCA - SLP
2 stops12h 02mDelta
Wed 12/3110:00 amSLP - DCA
1 stop12h 00mDelta
Deal found 6/30$888

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 July 3, 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

Fri 8/15

5:30 am-1:24 pm

2 stops9h 54m

San Luis Potosi

Fri 8/22

2:26 pm-12:20 pm

1 stop19h 54m

$400

Washington, D.C.San Luis Potosí

IAD - SLP

IADSLP

Washington, D.C. Dulles Intl

Fri 8/15

9:58 pm-3:33 pm

2 stops19h 35m

San Luis Potosi

Fri 8/22

2:26 pm-12:02 pm

1 stop19h 36m

$549

BaltimoreSan Luis Potosí

BWI - SLP

BWISLP

Baltimore/Washington

Mon 12/1

8:10 am-5:49 pm

1 stop10h 39m

San Luis Potosi

Thu 12/11

1:13 pm-12:12 am

2 stops9h 59m

$574

Washington, D.C.San Luis Potosí

IAD - SLP

IADSLP

Washington, D.C. Dulles Intl

Sun 8/17

5:16 pm-7:20 am

1 stop16h 04m

San Luis Potosi

Sun 8/24

6:10 am-3:26 pm

1 stop7h 16m

$575

BaltimoreSan Luis Potosí

BWI - SLP

BWISLP

Baltimore/Washington

Sun 8/17

7:00 am-8:30 pm

1 stop15h 30m

San Luis Potosi

Sun 8/24

12:00 pm-12:33 am

2 stops10h 33m

$580

Washington, D.C.San Luis Potosí

DCA - SLP

DCASLP

Washington, D.C. Reagan-National

Fri 10/10

10:15 am-8:41 pm

1 stop12h 26m

San Luis Potosi

Wed 10/15

5:14 am-6:48 pm

1 stop11h 34m

$583

BaltimoreSan Luis Potosí

BWI - SLP

BWISLP

Baltimore/Washington

Fri 8/15

7:00 am-4:05 pm

1 stop11h 05m

San Luis Potosi

Sun 8/24

9:04 am-6:24 pm

1 stop7h 20m

$614

Washington, D.C.San Luis Potosí

IAD - SLP

IADSLP

Washington, D.C. Dulles Intl

Fri 7/18

11:49 am-9:52 pm

1 stop12h 03m

San Luis Potosi

Mon 8/4

12:20 pm-10:46 pm

1 stop8h 26m

$722

Washington, D.C.San Luis Potosí

DCA - SLP

DCASLP

Washington, D.C. Reagan-National

Sun 8/17

6:00 am-6:29 pm

2 stops14h 29m

San Luis Potosi

Sun 8/24

6:10 am-9:25 pm

2 stops13h 15m

$751

Washington, D.C.San Luis Potosí

IAD - SLP

IADSLP

Washington, D.C. Dulles Intl

Wed 12/24

10:06 pm-11:49 am

1 stop14h 43m

San Luis Potosi

Wed 12/31

8:15 am-11:51 pm

1 stop14h 36m

$831

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

Showing 1-10 of 17 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, January is the cheapest month in which you can book a flight from Washington, D.C. to San Luis Potosí (average of $489). 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 July 3, 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.

How much does it cost to fly round-trip from Washington, D.C. to San Luis Potosí?

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 3, 2025.
Get a feel of what it's like to fly with Delta, Aeromexico, and United 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.
Delta
8.0
Very good
7,982 reviews

Overall

8.0

Comfort

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

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
7,982 reviews
Delta
8.0
Very good
7,982 reviews

Overall

8.0

Comfort

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

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
1,718 reviews
Delta
8.0
Very good
7,982 reviews

Overall

8.0

Comfort

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

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
8,861 reviews
Delta
8.0
Very good
7,982 reviews

Overall

8.0

Comfort

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

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
7,982 reviews

Overall

8.0

Comfort

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

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 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 2 airlines. San Luis Potosi is conveniently located just 7.8 mi from San Luis Potosí’s city center.

  • What are the cheapest airlines flying from Washington, D.C. to San Luis Potosí round-trip?

    According to our current data, Aeromexico ($575), American Airlines ($580), and United Airlines ($831) offers the cheapest pricing from Washington, D.C. to San Luis Potosí. Aeromexico is currently priced 23% below the average price you’ll pay for this route.

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

    While some choose either Baltimore/Washington - San Luis Potosi or Washington, D.C. Dulles Intl - San Luis Potosi, Washington, D.C. Reagan-National - 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, January is the cheapest month in which you can book a flight from Washington, D.C. to San Luis Potosí (average of $489). 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 2 airlines flying from Washington, D.C. to San Luis Potosí

Discover the top 2 airlines 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 July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$498Average$723FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$570Average$648FlexibilityNo cancel feeOn-time69%

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