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San Luis Potosí

$329+ Cheap flights from Dulles Intl (IAD) 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 11/27. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — SLP
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheap flight deals from Dulles Intl to San Luis Potosí

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) 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 17, 2025.

Round-trip from

$565
(Aeromexico)

One-way from

$329
(Delta)
From Washington, D.C. Dulles Intl to San Luis Potosi
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One-way flight from Washington, D.C. Dulles Intl to San Luis Potosi
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Find flight deals from Dulles Intl to San Luis Potosí

Cheapest flights from Dulles Intl to San Luis Potosí
Explore the most affordable flight options available from Dulles Intl to San Luis Potosí. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.

This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/173:10 pmIAD - SLP
2 stops24h 40mMultiple Airlines
Fri 10/242:51 pmSLP - IAD
1 stop19h 08mMultiple Airlines
Deal found 9/15$399
This SmartFares 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/3012:27 pmIAD - SLP
1 stop7h 51mAeromexico
Thu 11/65:52 amSLP - IAD
1 stop7h 10mAeromexico
Deal found 9/15$552
This Delta deal was found by Cheapflights users on 9/17. 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 9/17$571
This Delta deal was found by Cheapflights users on 9/16. 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 9/16$575
This Aeromexico 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 Aeromexico is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/135:05 pmIAD - SLP
1 stop8h 41mAeromexico
Mon 10/207:30 pmSLP - IAD
2 stops25h 48mAeromexico
Deal found 9/15$581
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 9/15. 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 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.
Mon 10/138:25 pmIAD - SLP
2 stops16h 44mAmerican Airlines
Mon 10/2011:59 amSLP - IAD
2 stops19h 56mAmerican Airlines
Deal found 9/15$610
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.
Fri 10/3112:27 pmIAD - SLP
1 stop7h 51mDelta
Fri 11/145:52 amSLP - IAD
1 stop7h 10mDelta
Deal found 9/15$615
This American Airlines deal was found by Cheapflights users on 9/16. 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.
Mon 12/85:08 pmIAD - SLP
1 stop29h 13mAmerican Airlines
Mon 1/126:29 amSLP - IAD
2 stops16h 27mAmerican Airlines
Deal found 9/16$624
This Aeromexico deal was found by Cheapflights users on 9/16. 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 11/54:01 pmIAD - SLP
1 stop17h 57mAeromexico
Tue 11/117:08 pmSLP - IAD
2 stops23h 00mAeromexico
Deal found 9/16$626

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl 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 17, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to San Luis Potosí that are best for you.

Fly from

Dulles Intl

Fly to

San Luis Potosí

Route

Depart

Return

Price

Washington, D.C.San Luis Potosí

IAD - SLP

IADSLP

Washington, D.C. Dulles Intl

Fri 10/17

3:10 pm-1:50 pm

2 stops24h 40m

San Luis Potosi

Fri 10/24

2:51 pm-11:59 am

1 stop19h 08m

$399

Washington, D.C.San Luis Potosí

IAD - SLP

IADSLP

Washington, D.C. Dulles Intl

Thu 10/30

12:27 pm-6:18 pm

1 stop7h 51m

San Luis Potosi

Thu 11/6

5:52 am-2:02 pm

1 stop7h 10m

$552

Washington, D.C.San Luis Potosí

IAD - SLP

IADSLP

Washington, D.C. Dulles Intl

Mon 12/8

4:01 pm-11:02 pm

1 stop8h 01m

San Luis Potosi

Mon 1/12

6:14 am-1:49 pm

1 stop6h 35m

$571

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

Washington, D.C.San Luis Potosí

IAD - SLP

IADSLP

Washington, D.C. Dulles Intl

Mon 10/13

5:05 pm-11:46 pm

1 stop8h 41m

San Luis Potosi

Mon 10/20

6:00 am-3:10 pm

1 stop7h 10m

$571

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

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

Tue 10/21

6:00 am-3:10 pm

1 stop7h 10m

$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

Tue 10/21

6:00 am-3:10 pm

1 stop7h 10m

$575

Washington, D.C.San Luis Potosí

IAD - SLP

IADSLP

Washington, D.C. Dulles Intl

Thu 11/6

12:27 pm-6:18 pm

1 stop6h 51m

San Luis Potosi

Wed 11/12

5:52 am-2:02 pm

1 stop7h 10m

$575

Washington, D.C.San Luis Potosí

IAD - SLP

IADSLP

Washington, D.C. Dulles Intl

Fri 10/17

6:11 am-8:05 pm

1 stop15h 54m

San Luis Potosi

Fri 10/24

11:59 am-10:51 pm

1 stop8h 52m

$585

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 13 results
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Best time to book a flight from Dulles Intl to San Luis Potosí

Have a flexible travel schedule? Discover the best time to fly to San Luis Potosí from Dulles Intl 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.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl 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. Dulles Intl?

    For a flight from Washington, D.C. Dulles Intl to San Luis Potosí, you will be flying into San Luis Potosi. San Luis Potosi (SLP) is just 7.8 mi from the center of the city. San Luis Potosi is the only San Luis Potosí airport and it handles 0 inbound flights from Washington, D.C. Dulles Intl per day. 0 airlines have flights to San Luis Potosi from Washington, D.C. Dulles Intl on a regular basis.

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

    Airlines like Aeromexico and Delta fly from Washington, D.C. Dulles Intl Airport to San Luis Potosí in about 7h 51m. The time it takes to get you to your destination can typically vary by up to 10m. Washington, D.C. Dulles Intl Airport and San Luis Potosí are separated by a distance of 1800 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

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

  • How can I find direct flights from Dulles Intl 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 Dulles Intl to San Luis Potosí.

  • Can I find deals for business class flights from Dulles Intl to San Luis Potosí?

    Yes. Cheapflights offers flight deals from Dulles Intl 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. Dulles Intl Airport to San Luis Potosí?

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

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