IAD - SLP

$374 Find Cheap Flights from Washington, D.C. to San Luis Potosí

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Washington, D.C. to San Luis Potosí departing on 11/15. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to San Luis Potosí

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to San Luis Potosí, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to San Luis Potosí, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$374
Aeromexico
Mon 3/9Tue 3/10
IAD - SLP • 1 stop
Cheapest one-way
$189
American Airlines
Sat 11/15
IAD - SLP • 1 stop
Top airlines
Aeromexico
Cheapest • from $374 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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We hope you love your trip to San Luis Potosí!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Washington, D.C. to San Luis Potosí (IAD-SLP)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Washington, D.C. to San Luis Potosí that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Washington, D.C. to San Luis Potosí

Mon, Mar 9 - Tue, Mar 10
Aeromexico Logo
4:15 pm - 12:05 amIAD-SLP
9h 50m1 stop
Aeromexico Logo
7:12 pm - 2:45 pmSLP-IAD
17h 33m1 stop
$374Aeromexico
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Mon, Mar 9 - Tue, Mar 10
Aeromexico Logo
6:00 am - 12:05 amIAD-SLP
20h 05m2 stops
Aeromexico Logo
5:48 am - 2:45 pmSLP-IAD
6h 57m1 stop
$385Aeromexico
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Mon, Mar 9 - Tue, Mar 10
Aeromexico Logo
1:00 pm - 12:05 amIAD-SLP
13h 05m2 stops
Aeromexico Logo
5:48 am - 12:07 amSLP-IAD
16h 19m2 stops
$389Aeromexico
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Thu, Dec 25 - Mon, Jan 19
United Airlines Logo
10:15 pm - 8:54 pmIAD-SLP
23h 39m1 stop
United Airlines Logo
12:49 pm - 11:23 amSLP-IAD
21h 34m1 stop
$624United Airlines
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Sat, Nov 22 - Sat, Nov 29
United Airlines Logo
10:10 pm - 9:00 pmIAD-SLP
23h 50m1 stop
United Airlines Logo
6:00 am - 10:04 pmSLP-IAD
15h 04m1 stop
$922United Airlines
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Thu, Dec 25 - Mon, Jan 19
American Airlines Logo
6:05 am - 12:33 pmIAD-SLP
7h 28m1 stop
American Airlines Logo
7:00 am - 10:58 amSLP-IAD
26h 58m2 stops
$964American Airlines
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Thu, Dec 25 - Mon, Jan 19
American Airlines Logo
1:57 pm - 12:33 pmIAD-SLP
23h 36m2 stops
American Airlines Logo
2:21 pm - 12:36 pmSLP-IAD
21h 15m2 stops
$1,005American Airlines
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Thu, Dec 25 - Mon, Jan 19
Multiple Airlines Logo
1:07 pm - 7:15 pmIAD-SLP
31h 08m3 stops
Multiple Airlines Logo
7:09 am - 8:26 pmSLP-IAD
12h 17m2 stops
$1,041Multiple Airlines
Find Deal
Thu, Dec 18 - Wed, Jan 7
Aeromexico Logo
3:36 pm - 8:58 amIAD-SLP
18h 22m1 stop
Aeromexico Logo
5:47 am - 1:56 pmSLP-IAD
7h 09m1 stop
$1,083Aeromexico
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Sat, Nov 22 - Sat, Nov 29
Multiple Airlines Logo
4:01 pm - 7:45 amIAD-SLP
16h 44m2 stops
Multiple Airlines Logo
5:47 am - 2:02 pmSLP-IAD
7h 15m1 stop
$1,672Multiple Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Washington, D.C. to San Luis Potosí flights

Get data-powered insights and trends into flights from Washington, D.C. to San Luis Potosí to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Washington, D.C. to San Luis Potosí?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Washington, D.C. to San Luis Potosí were found on Aeromexico ($374) and United Airlines ($624).

Which airlines fly non-stop between Washington, D.C. Dulles Intl Airport and San Luis Potosí?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for round-trip flights from Washington, D.C. Dulles Intl Airport to San Luis Potosí.

There is just one airline that flies from Washington, D.C. Dulles Intl Airport to San Luis Potosí direct and that is United Airlines. The best round-trip deal found from United Airlines for the route is $451.

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Good to know

Cheapest flight$189
Flight from Washington, D.C. to San Luis Potosí

When to book flights from Washington, D.C. to San Luis Potosí

Are your dates flexible? Find out the best times to travel from Washington, D.C. to San Luis Potosí based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Washington, D.C. to San Luis Potosí flights

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

    In the last 3 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to San Luis Potosí was $189 for a one-way ticket and $374 for a round-trip.

  • Do I need a passport to fly between Washington, D.C. and San Luis Potosí?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Washington, D.C. and on arrival in San Luis Potosí.

  • Which airports will I be using when flying from Washington, D.C. to San Luis Potosí?

    When flying out of Washington, D.C. you will be using Washington, D.C. Dulles Intl. You will be landing at San Luis Potosí, also known as San Luis Potosi.

  • Which aircraft models fly most regularly from Washington, D.C. to San Luis Potosí?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Washington, D.C. to San Luis Potosí?

    Star Alliance is the only airline alliance operating flights between Washington, D.C. and San Luis Potosí.

  • How does KAYAK find such low prices on flights from Washington, D.C. to San Luis Potosí?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington, D.C. to San Luis Potosí.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington, D.C. to San Luis Potosí?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Luis Potosí from Washington, D.C. is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington, D.C. to San Luis Potosí?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Luis Potosí with an airline and back to Washington, D.C. with another airline. Booking your flights between Washington, D.C. and SLP can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington, D.C. to San Luis Potosí?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Luis Potosí from Washington, D.C. up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Washington, D.C. to San Luis Potosí

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to San Luis Potosí. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Washington, D.C. to San Luis Potosí? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9007 reviews
6.6Food
8.1Crew
7.3Comfort
7.1Entertainment
7.7Boarding
Airline reviews

7 hours delayed due to operational issues on United’s end. Basically laziness.

2.0 MediocreGray, Nov 2025IAD - SFO
Read more United Airlines reviews

7 hours delayed due to operational issues on United’s end. Basically laziness.

Short flight but an "eager to help" crew made the journey more enjoyable!

During booking, I kept trying submitting my payment from the Mexican website and it didn't work. After I had the idea to change it to the Canadian website, it worked but I had to be charged the equivalent of 50 CAD more. I received the clear instruction that I would only be able to check-in at the airport and that it was impossible to select a seat 24 hours before departure, that I had to pay 144 CAD to do so, although not only was I able to check-in 24 hours before departure, but I could have selected my seats for free then. All in all, I almost threw $200 out the window due to misleading information. Besides, the app kept crashing, the information to get to the gate on the app was inaccurate, my gate was switched and I was only informed once in the air (luckily I had noticed the departure pannel), I was not addressed in my language beforehand and even if I tried I was immediately answered in English (which meant the crew understood but didn't want to answer accordingly), there was only one snack & beverage service on my medium haul flight and no beverage service on my short haul flight. To be fair, the planes were comfortable, the crew apart from the language issue was helpful, dynamic and engaging, the plane was clean and the directions were clear and direct. United has a lot of potential to be one of my favourite airlines, but the devil is in the details and a lot of them missed the target.

Better WiFi. I cannot understand that in 2025, United is so behind on a technology that is now a necessity and still painfully unreliable, slow and keeps disconnecting.

Great service on board. Boarding a bit slow due to process. Food was pretty average.

Very small cramped plane for an international flight. Everything else was good, but it was maybe the smallest comfort-wise I've ever been on for longer than 3-4 hours and the trip was 7.5

Flight was delayed 3 hours. No food and drink vouchers was provided. They offered a mini pretzel bag and water .

Staff was rude. Didn’t give water for 2 hours. Worst service

Was on time until within 1 hour of flight-how does that happen? Staff very friendly.

I liked the choice of lemon ginger tea. I think stewardesses can be more considerate of older people needs.

Everything you need to know for your flight from Washington, D.C. to San Luis Potosí

Information on your arrival and departure airports

Washington, D.C. (IAD)
San Luis Potosí (SLP)