IAD - SLP

$354 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 11/29. 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

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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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

Fri, Oct 17 - Sun, Oct 26
Multiple Airlines Logo
3:10 pm - 1:50 pmIAD-SLP
24h 40m2 stops
Multiple Airlines Logo
2:51 pm - 9:09 amSLP-IAD
16h 18m1 stop
$419Multiple Airlines
Find Deal
Wed, Nov 5 - Tue, Nov 11
Delta Logo
12:27 pm - 6:18 pmIAD-SLP
6h 51m1 stop
Delta Logo
5:52 am - 2:02 pmSLP-IAD
7h 10m1 stop
$575Delta
Find Deal
Wed, Nov 5 - Tue, Nov 11
American Airlines Logo
7:55 am - 9:20 pmIAD-SLP
14h 25m2 stops
American Airlines Logo
6:15 am - 11:07 pmSLP-IAD
15h 52m2 stops
$590American Airlines
Find Deal
Fri, Oct 31 - Fri, Nov 14
Delta Logo
12:27 pm - 6:18 pmIAD-SLP
7h 51m1 stop
Delta Logo
5:52 am - 2:12 pmSLP-IAD
7h 20m1 stop
$615Delta
Find Deal
Fri, Oct 31 - Fri, Nov 14
Delta Logo
12:27 pm - 6:18 pmIAD-SLP
7h 51m1 stop
Delta Logo
9:36 am - 11:03 pmSLP-IAD
12h 27m2 stops
$625Delta
Find Deal
Mon, Mar 9 - Tue, Mar 10
Aeromexico Logo
3:35 pm - 11:37 pmIAD-SLP
10h 02m1 stop
Aeromexico Logo
8:13 pm - 2:49 pmSLP-IAD
16h 36m1 stop
$691Aeromexico
Find Deal
Mon, Mar 9 - Tue, Mar 10
Aeromexico Logo
6:00 am - 7:37 pmIAD-SLP
15h 37m2 stops
Aeromexico Logo
8:13 pm - 2:49 pmSLP-IAD
16h 36m1 stop
$695Aeromexico
Find Deal
Mon, Mar 9 - Tue, Mar 10
Aeromexico Logo
7:00 am - 11:37 pmIAD-SLP
18h 37m2 stops
Aeromexico Logo
10:08 am - 12:07 amSLP-IAD
11h 59m2 stops
$705Aeromexico
Find Deal
Fri, Oct 17 - Sun, Oct 26
American Airlines Logo
6:11 am - 8:05 pmIAD-SLP
15h 54m1 stop
American Airlines Logo
11:59 am - 10:51 pmSLP-IAD
8h 52m1 stop
$711American Airlines
Find Deal
Fri, Dec 19 - Fri, Jan 23
United Airlines Logo
10:15 pm - 8:54 pmIAD-SLP
23h 39m1 stop
United Airlines Logo
12:49 pm - 8:49 pmSLP-IAD
7h 00m1 stop
$911United Airlines
Find Deal

Everything you should know

Top airlines
Delta
Cheapest • from $575 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Cheapest round-trip
$419
Multiple Airlines
Fri 10/17Sun 10/26
IAD - SLP • 2 stops
Cheapest one-way
$354
United Airlines
Sat 11/29
IAD - SLP • 1 stop
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to San Luis Potosí!
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 Delta ($575) and American Airlines ($590).

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 $520.

Find deals

Good to know

Cheapest flight$354
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 $354 for a one-way ticket and $419 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 8929 reviews
7.1Entertainment
7.7Boarding
6.6Food
7.3Comfort
8.1Crew
Airline reviews

We had to deboard 2 times due to maintenance issues. They changed the plane, and then we got deviated to LAX due to maibtenance issues on the other plane, had to sleep at LAX and los a full day.

2.0 MediocreAnonymous, Sep 2025SFO - MEX
Read more United Airlines reviews

We had to deboard 2 times due to maintenance issues. They changed the plane, and then we got deviated to LAX due to maibtenance issues on the other plane, had to sleep at LAX and los a full day.

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.

We were given vouchers we couldn’t use with a 5.5 hour delay

Breakfast was not loaded at SFO due to catering company change. Seems like a major airline at a major hub would have thought of something else or warned passengers to pick up food before boarding a 3 hour flight.

I fly UAL 7-8 times per year. This flight was not up to snuff because it boarded very late "due to unexpected delays in restocking the plane" and yet Flight Aware showed the plane had landed some 10 hours earlier--so I think they could have planned accordingly. The FA's were nice but harried. The video system had to be rebooted 3-4 times. The food service was rather abrupt; they forgot my row and when I asked for my meal, they brought it with some impatience. Overall, the flight was fine, but the little details made it feel somewhat mundane and hurried.

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)

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