IAD - SLP

$344 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
$541
American Airlines
Thu 5/28Wed 6/3
IAD - SLP • 1 stop
Cheapest one-way
$374
United Airlines
Sun 3/8
IAD - SLP • 1 stop
Top airlines
American Airlines
Cheapest • from $541 (round-trip)
Delta
Best reviews • 7.9 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

Thu, May 28 - Wed, Jun 3
American Airlines Logo
6:18 am - 11:02 am
IAD
-
SLP
6h 44m
1 stop
American Airlines Logo
11:52 am - 10:46 pm
SLP
-
IAD
8h 54m
1 stop
$541American Airlines
Wed, Apr 29 - Wed, May 13
American Airlines Logo
8:11 pm - 11:00 am
IAD
-
SLP
16h 49m
2 stops
American Airlines Logo
12:09 pm - 11:59 pm
SLP
-
IAD
9h 50m
2 stops
$546American Airlines
Wed, May 6 - Wed, May 13
American Airlines Logo
5:59 pm - 11:00 am
IAD
-
SLP
19h 01m
1 stop
American Airlines Logo
12:09 pm - 11:26 pm
SLP
-
IAD
9h 17m
1 stop
$554American Airlines
Wed, Apr 29 - Wed, May 13
Delta Logo
5:05 pm - 11:15 pm
IAD
-
SLP
8h 10m
1 stop
Delta Logo
6:10 am - 3:10 pm
SLP
-
IAD
7h 00m
1 stop
$557Delta
Mon, Apr 6 - Mon, Apr 13
Aeromexico Logo
6:01 am - 4:05 pm
IAD
-
SLP
12h 04m
1 stop
Aeromexico Logo
8:05 pm - 3:10 pm
SLP
-
IAD
17h 05m
1 stop
$561Aeromexico
Fri, May 1 - Fri, May 15
American Airlines Logo
8:11 pm - 11:00 am
IAD
-
SLP
16h 49m
2 stops
American Airlines Logo
12:09 pm - 11:26 pm
SLP
-
IAD
9h 17m
1 stop
$566American Airlines
Thu, May 28 - Wed, Jun 3
Delta Logo
12:58 pm - 11:15 pm
IAD
-
SLP
12h 17m
2 stops
Delta Logo
12:15 pm - 12:46 am
SLP
-
IAD
10h 31m
2 stops
$571Delta
Fri, Mar 13 - Mon, Mar 16
Delta Logo
4:20 pm - 11:59 pm
IAD
-
SLP
9h 39m
1 stop
Delta Logo
5:46 am - 2:50 pm
SLP
-
IAD
7h 04m
1 stop
$573Delta
Fri, May 1 - Wed, May 13
Delta Logo
5:05 pm - 11:15 pm
IAD
-
SLP
8h 10m
1 stop
Delta Logo
6:10 am - 3:10 pm
SLP
-
IAD
7h 00m
1 stop
$577Delta
Mon, Apr 6 - Mon, Apr 13
American Airlines Logo
2:03 pm - 11:00 am
IAD
-
SLP
22h 57m
2 stops
American Airlines Logo
12:09 pm - 5:09 pm
SLP
-
IAD
27h 00m
1 stop
$579American Airlines
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 American Airlines ($541) and Delta ($557).

Good to know

Cheapest flight$374
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 $344 for a one-way ticket and $541 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?

    SkyTeam, and Star Alliance are the airline alliances operating flights between Washington, D.C. and San Luis Potosí, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from Washington, D.C. to San Luis Potosí, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to San Luis Potosí are Delta and United Airlines. With an average price for the route of $416 and an overall rating of 7.9, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $550 and an overall rating of 7.4.

  • 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 airlines 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.
7.9
DeltaOverall score based on 8204 reviews
7.8Entertainment
8.5Crew
7.9Comfort
7.2Food
8.1Boarding
Airline reviews

Everything I mentioned earlier - the airbus was more comfortable indeed and the experience was further enhanced.

10.0 ExcellentSoosnata, Feb 2026
LAX - HNL
Read more Delta reviews

Everything I mentioned earlier - the airbus was more comfortable indeed and the experience was further enhanced.

Delta continues to set the benchmark for traveler-friendly service with minimal disruption and clear communication within the mainland US (coast to coast). I am consistently pleased to be a Delta customer, and this experience once again met my expectations. There was a brief delay departing from MIA due to a technical issue that required the aircraft to return to the gate. However, the situation was handled professionally and transparently. Fortunately, my planned layover allowed ample buffer time, so the adjustment caused no stress. Overall, another smooth and reassuring experience.

Good experience and the flight landed early. There was no food I had or entertainment.

Flight was delayed and no reasons provided. After the passengers were boarded, the crew made announcement that the captain has jot arrived and he would take another 15 mins. All passengers patiently sat until the captain came and started. Terrible experience!

Flight was delayed. No information on why it was delayed. After we boarded the flight, , the crew made announcement that the captain hs not arrived and he will take 15 mins more to arrive. Passengers were just sitting patiently for the captain to arrive and start, Terrible experience.

Totally worth the miles to upgrade to Delta Comfort. Plenty of legroom.

This was my first time flying Delta ever and I had a great experience!

Smallest leg room I've ever had on a plane.

They took all carry-on luggage from Groups 6 -9 - I was group 5 and waiting in line to board - they made me check my luggage too. That then went to baggage claim and delayed departure from the airport. There was overhead room in my seating area - Delta over reacted. Also, had a gentleman next to me that took up 1/2 my seat.

Excellent!!! Aeromexico is a great airline. What was not that good is the service provided by Kayak. It is never clear and not easy to manage.

Wifi took a while to kick in and we had a maintenance issue that took over 40 mins at the gate in Washington before pulling back

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!

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

Information on your arrival and departure airports