IAD - SLP

$353 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 3/8. 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
$608
Aeromexico
Thu 4/2Mon 4/6
IAD - SLP • 1 stop
Cheapest one-way
$353
United Airlines
Sun 3/8
IAD - SLP • 1 stop
Top airlines
Aeromexico
Cheapest • from $608 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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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

Thu, Apr 2 - Mon, Apr 6
Aeromexico Logo
6:01 am - 6:25 pm
IAD
-
SLP
14h 24m
1 stop
Aeromexico Logo
7:50 pm - 3:10 pm
SLP
-
IAD
17h 20m
1 stop
$608Aeromexico
Sun, Mar 8 - Tue, Mar 17
United Airlines Logo
10:05 pm - 10:49 am
IAD
-
SLP
14h 44m
1 stop
United Airlines Logo
11:49 am - 10:36 pm
SLP
-
IAD
8h 47m
1 stop
$616United Airlines
Sun, Mar 8 - Tue, Mar 17
Aeromexico Logo
4:20 pm - 11:59 pm
IAD
-
SLP
9h 39m
1 stop
Aeromexico Logo
5:49 am - 2:50 pm
SLP
-
IAD
7h 01m
1 stop
$621Aeromexico
Sun, Mar 8 - Sun, Mar 15
Aeromexico Logo
6:00 am - 11:59 pm
IAD
-
SLP
19h 59m
2 stops
Aeromexico Logo
7:29 pm - 2:50 pm
SLP
-
IAD
17h 21m
1 stop
$626Aeromexico
Tue, Feb 17 - Thu, Feb 19
Aeromexico Logo
3:15 pm - 11:59 pm
IAD
-
SLP
9h 44m
1 stop
Aeromexico Logo
5:48 am - 1:45 pm
SLP
-
IAD
6h 57m
1 stop
$629Aeromexico
Tue, Feb 17 - Thu, Feb 19
Aeromexico Logo
6:00 am - 9:01 pm
IAD
-
SLP
16h 01m
2 stops
Aeromexico Logo
5:48 am - 1:45 pm
SLP
-
IAD
6h 57m
1 stop
$634Aeromexico
Thu, Apr 2 - Mon, Apr 6
Aeromexico Logo
6:01 am - 6:25 pm
IAD
-
SLP
14h 24m
1 stop
Aeromexico Logo
7:50 pm - 3:10 pm
SLP
-
IAD
17h 20m
1 stop
$635Aeromexico
Sun, Mar 8 - Tue, Mar 17
Aeromexico Logo
12:47 pm - 11:59 pm
IAD
-
SLP
13h 12m
2 stops
Aeromexico Logo
5:49 am - 6:33 pm
SLP
-
IAD
10h 44m
2 stops
$636Aeromexico
Fri, Feb 27 - Sat, Mar 7
Delta Logo
3:15 pm - 11:59 pm
IAD
-
SLP
9h 44m
1 stop
Delta Logo
5:46 am - 1:45 pm
SLP
-
IAD
6h 59m
1 stop
$641Delta
Tue, Feb 17 - Thu, Feb 19
Aeromexico Logo
6:00 am - 11:59 pm
IAD
-
SLP
18h 59m
2 stops
Aeromexico Logo
5:48 am - 12:21 am
SLP
-
IAD
17h 33m
2 stops
$644Aeromexico
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 ($608) and United Airlines ($616).

Good to know

Cheapest flight$353
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 $353 for a one-way ticket and $608 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 9191 reviews
8.1Crew
7.7Boarding
7.3Comfort
6.6Food
7.1Entertainment
Airline reviews

Very good. Because of the delays with my previous flight, I missed my connection, but I was able to book another flight through the United app easily.

10.0 ExcellentAnonymous, Jan 2026
IAD - ATL
Read more United Airlines reviews

Very good. Because of the delays with my previous flight, I missed my connection, but I was able to book another flight through the United app easily.

Was happy we finally got upgraded in 1st class. The seat getting old. The cushiness need some improvement.

Ineffective communication with United resulted in lost baggage. Their Baggage Tracing counter at MUC was shut down from 11:00-14:15 on my arrival. Undertrained, underinformed staff had me Running all over MUC to find someone to help me to no avail. Staff was rude, unhelpful, and unable to effectively use the systems they did have operational. They refused to contact United in any way or provide any accommodation or other resources while I waited for my luggage. This has destroyed my downstream itinerary. If they had even the slightest visibility I may have been able to reschedule/plan, but again, their staff provided nothing, and did nothing more than their website, which doesn’t even work on a standard phone browser. Miserable failure at all levels that weren’t associated with the operation of the aircraft.

Sat next to a one year old. She crawled all over the place and made me laugh.

The Crew and the food was the worst I ever had in Business Class. First they told us there were no space for carry on. It was plenty of space over our 2 row seats, we had to ask to let us travel with it which was accepted. They were aware that we had to run for the connection due to the previous flight delay. Have us one hour waiting for more customers and not even offer a glass of water. Then started the service and they started to serve other passengers drinks in business and did not offer any drinks until they serve our pre ordered meal and I ask for something to drink. I had to wait until they finished to serve all passengers until Inget something. The crew was the worts I ever had for Business Class in my life.

Not great experience - we were super late boarding due to issues with aircraft. Then when we finally all got onboard and seated and they started taxiing out to the runway they just stopped then turned around and went back to the airport. Apparently the crew “ran out of time” to legally fly us. They mentioned that they were about 2 minutes away from taking off. I understand the rules and safety but kinda wonder why they would have bothered boarding us in the first place? Had to go all the way back and de plane and then wait in a HUGE line to get a hotel (this is somewhere around 2:30am) finally got to hotel by Uber (no shuttle after 20min so gave up) and they ended up putting us all back on the same aircraft at 10am next morning so got about 2.5 hours sleep. They did give us. $250 credit, but it was a São Paulo Brazil flight out of Dulles. The flight and everything was fine.

Starlink wifi on the Embraer E175 is an excellent experience. I was able to connect and work from IAD all the way to approach into BTV.

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.

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

Information on your arrival and departure airports