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Arequipa

$872+ Cheap flights from St. Louis (STL) to Arequipa (AQP)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/6. Fares are subject to change and may not be available on all flights or dates of travel.
STL — AQP
Oct 25 — Nov 11
Sat 10/25
Sat 11/1
1 adult, Economy
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Cheap flight deals from St. Louis to Arequipa

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Arequipa (AQP). 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 September 25, 2025.

Most accurate provider

Expedia
2 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$872
(LATAM Airlines)
Provider with most accurate pricing for Lambert-St Louis-Arequipa Rodriguez Ballon flight deals.
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Provider most trusted by Cheapflights users for Lambert-St Louis-Arequipa Rodriguez Ballon flights.
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From Lambert-St Louis to Arequipa Rodriguez Ballon
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Find flight deals from St. Louis to Arequipa

Cheapest flights from St. Louis to Arequipa
Explore the most affordable flight options available from St. Louis to Arequipa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 25, 2025.

This LATAM Airlines deal was found by Cheapflights users on 9/23. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/65:12 pmSTL - AQP
2 stops19h 03mLATAM Airlines
Wed 12/108:20 pmAQP - STL
2 stops22h 37mLATAM Airlines
Deal found 9/23$872

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Arequipa 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 September 25, 2025.
Use the filters below to find and compare flights from St. Louis to Arequipa that are best for you.

Fly from

St. Louis

Fly to

Arequipa

Route

Depart

Return

Price

St. LouisArequipa

STL - AQP

STLAQP

Lambert-St Louis

Sat 12/6

5:12 pm-10:05 am

2 stops15h 53m

Arequipa Rodriguez Ballon

Wed 12/10

8:20 pm-10:41 am

2 stops15h 21m

$872

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/22

  • Most accurate provider: When it comes to deals on St. Louis-Arequipa flights, users find the pricing of Expedia to be most consistent on Cheapflights vs. Expedia Users can find the same prices on St. Louis-Arequipa flight deals on Cheapflights vs. Expedia 90-95% of the time. Price accuracy is based on data collected from St. Louis-Arequipa flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on St. Louis-Arequipa flights, Cheapflights users trust Expedia the most. Expedia has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Arequipa flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from St. Louis to Arequipa

Have a flexible travel schedule? Discover the best time to fly to Arequipa from St. Louis 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.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Arequipa. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from St. Louis to Arequipa?

    LATAM Airlines can get you from St. Louis to Arequipa in just under 15h 53m. Your travel time can differ by up to . There are 3994 mi between St. Louis and Arequipa.

  • Can I find deals for flights from St. Louis to Arequipa that include hotel bookings?

    Yes. In addition to deals on St. Louis to Arequipa flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to Arequipa?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Arequipa.

  • Can I find deals for business class flights from St. Louis to Arequipa?

    Yes. Cheapflights offers flight deals from St. Louis to Arequipa 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 St. Louis to Arequipa?

    Currently, October is the cheapest month in which you can book a flight from St. Louis to Arequipa (average of $592). Flying from St. Louis to Arequipa in December is currently the most expensive (average of $1,087). 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.

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