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San Luis Potosí

$301+ 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 9/21. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — SLP
Jul 1 — Jul 81
Tue 7/1
Tue 7/8
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 June 26, 2025.

Round-trip from

$815
(Mytrip)

One-way from

$301
(Mytrip)

Popular in

December

Cheapest in

February

Average price

$958
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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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 June 2025
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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 June 26, 2025.

This Delta deal was found by Cheapflights users on 6/26. 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.
Thu 12/253:31 pmIAD - SLP
1 stop9h 51mDelta
Wed 12/313:13 pmSLP - IAD
2 stops24h 33mDelta
Deal found 6/26$575
This Mytrip deal was found by Cheapflights users on 6/25. 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.
Sun 7/62:37 amIAD - SLP
3 stops14h 56mMultiple Airlines
Tue 7/89:15 amSLP - IAD
3 stops37h 42mMultiple Airlines
Deal found 6/25$815
This Aeromexico deal was found by Cheapflights users on 6/25. 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 12/243:31 pmIAD - SLP
1 stop9h 51mAeromexico
Wed 12/316:58 pmSLP - IAD
2 stops20h 48mAeromexico
Deal found 6/25$914
This United Airlines deal was found by Cheapflights users on 6/25. 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 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 stop13h 21mUnited Airlines
Deal found 6/25$938
This American Airlines deal was found by Cheapflights users on 6/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/245:50 pmIAD - SLP
2 stops19h 34mAmerican Airlines
Thu 1/12:55 pmSLP - IAD
2 stops24h 03mAmerican Airlines
Deal found 6/25$1,226

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 June 26, 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

Sun 7/6

2:37 am-3:33 pm

3 stops14h 56m

San Luis Potosi

Tue 7/8

9:15 am-12:57 am

3 stops37h 42m

$815

Washington, D.C.San Luis Potosí

IAD - SLP

IADSLP

Washington, D.C. Dulles Intl

Mon 7/7

5:16 pm-11:14 pm

1 stop7h 58m

San Luis Potosi

Tue 7/8

7:59 pm-3:31 pm

1 stop17h 32m

$959

Washington, D.C.San Luis Potosí

IAD - SLP

IADSLP

Washington, D.C. Dulles Intl

Tue 12/23

3:31 pm-12:22 am

1 stop9h 51m

San Luis Potosi

Wed 12/31

3:13 pm-4:46 pm

2 stops24h 33m

$1,086

Washington, D.C.San Luis Potosí

IAD - SLP

IADSLP

Washington, D.C. Dulles Intl

Tue 12/23

10:06 pm-11:49 am

1 stop14h 43m

San Luis Potosi

Wed 12/31

12:49 pm-11:51 pm

1 stop10h 02m

$1,088

Washington, D.C.San Luis Potosí

IAD - SLP

IADSLP

Washington, D.C. Dulles Intl

Sun 9/21

10:54 am-1:24 pm

3 stops28h 30m

$301

Washington, D.C.San Luis Potosí

IAD - SLP

IADSLP

Washington, D.C. Dulles Intl

Sun 9/21

6:25 am-11:11 am

1 stop6h 46m

$311

Washington, D.C.San Luis Potosí

IAD - SLP

IADSLP

Washington, D.C. Dulles Intl

Tue 8/5

5:16 pm-11:12 pm

1 stop7h 56m

$329

Washington, D.C.San Luis Potosí

IAD - SLP

IADSLP

Washington, D.C. Dulles Intl

Tue 8/5

8:31 pm-6:14 pm

2 stops23h 43m

$333

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/25

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.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to San Luis Potosí

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

Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to San Luis Potosí (average of $489). 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.

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 June 26, 2025.
Peruse reviews from past customers who have flown with Delta, Aeromexico, and United Airlines from Washington, D.C. Dulles Intl Airport to San Luis Potosí to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,964 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Crew

8.5

Entertainment

7.9

Overall

8.0

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
7,964 reviews
Delta
8.0
Very good
7,964 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Crew

8.5

Entertainment

7.9

Overall

8.0

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
1,717 reviews
Delta
8.0
Very good
7,964 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Crew

8.5

Entertainment

7.9

Overall

8.0

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
8,838 reviews
Delta
8.0
Very good
7,964 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Crew

8.5

Entertainment

7.9

Overall

8.0

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
7,964 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Crew

8.5

Entertainment

7.9

Overall

8.0

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 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.

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

    Cheapflights users have booked flights from Washington, D.C. Dulles Intl Airport to San Luis Potosí round-trip from $959. Other airlines that can offer you cheap pricing are Delta, from $1,086, and United Airlines, from $1,088.

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

    The cheapest airlines for a one-way flight from Washington, D.C. Dulles Intl Airport to San Luis Potosí are American Airlines ($311), Delta ($329), and Aeromexico ($333).

  • 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, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to San Luis Potosí (average of $489). 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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