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Quito

$270+ Cheap flights from St. Louis (STL) to Quito (UIO)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/17. Fares are subject to change and may not be available on all flights or dates of travel.
STL — UIO
Aug 23 — Aug 301
Sat 8/23
Sat 8/30
1 adult, Economy
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Cheap flight deals from St. Louis to Quito

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Quito (UIO). 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 August 18, 2025.

Round-trip from

$614
(LATAM Airlines)

One-way from

$270
(Kiwi.com)

Popular in

August

Cheapest in

October

Average price

$1,267
From Lambert-St Louis to Quito Mariscal Sucr
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One-way flight from Lambert-St Louis to Quito Mariscal Sucr
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Highest demand for flights based on searches. 7% potential increase in price ($70 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($40 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from St. Louis to Quito

Cheapest flights from St. Louis to Quito
Explore the most affordable flight options available from St. Louis to Quito. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 18, 2025.

This Delta deal was found by Cheapflights users on 8/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/169:19 amSTL - UIO
1 stop10h 11mDelta
Thu 9/2511:20 pmUIO - STL
1 stop16h 45mDelta
Deal found 8/18$614
This LATAM Airlines deal was found by Cheapflights users on 8/16. 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 11/157:20 amSTL - UIO
1 stop10h 35mLATAM Airlines
Mon 11/2412:55 amUIO - STL
1 stop10h 45mLATAM Airlines
Deal found 8/16$624
This Delta deal was found by Cheapflights users on 8/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/157:20 amSTL - UIO
1 stop10h 35mDelta
Tue 11/259:11 amUIO - STL
2 stops23h 59mDelta
Deal found 8/16$629
This United Airlines deal was found by Cheapflights users on 8/18. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/167:04 pmSTL - UIO
2 stops28h 21mUnited Airlines
Wed 9/2412:35 amUIO - STL
2 stops34h 14mUnited Airlines
Deal found 8/18$635
This American Airlines deal was found by Cheapflights users on 8/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/155:21 amSTL - UIO
1 stop16h 41mAmerican Airlines
Tue 11/258:27 amUIO - STL
1 stop15h 05mAmerican Airlines
Deal found 8/16$694
This American Airlines deal was found by Cheapflights users on 8/17. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/125:25 amSTL - UIO
1 stop17h 34mAmerican Airlines
Sun 12/217:40 amUIO - STL
1 stop11h 08mAmerican Airlines
Deal found 8/17$824
This American Airlines deal was found by Cheapflights users on 8/17. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/1411:14 amSTL - UIO
2 stops11h 45mAmerican Airlines
Wed 12/1712:40 amUIO - STL
1 stop18h 08mAmerican Airlines
Deal found 8/17$835
This United Airlines deal was found by Cheapflights users on 8/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1211:25 amSTL - UIO
2 stops17h 45mUnited Airlines
Sun 12/218:00 amUIO - STL
2 stops29h 27mUnited Airlines
Deal found 8/17$871

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Quito 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 August 18, 2025.
Use the filters below to find and compare flights from St. Louis to Quito that are best for you.

Fly from

St. Louis

Fly to

Quito

Route

Depart

Return

Price

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Tue 9/16

11:04 am-11:20 pm

2 stops12h 16m

Quito Mariscal Sucr

Thu 9/25

11:20 pm-8:14 am

1 stop8h 54m

$614

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Tue 9/16

6:15 am-11:25 pm

1 stop17h 10m

Quito Mariscal Sucr

Wed 9/24

12:35 am-6:57 pm

1 stop18h 22m

$614

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Tue 9/16

7:10 am-7:30 pm

1 stop12h 20m

Quito Mariscal Sucr

Thu 9/25

11:20 pm-5:47 pm

1 stop18h 27m

$614

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Wed 9/17

7:55 pm-12:27 pm

3 stops40h 32m

$270

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Wed 9/17

7:10 am-7:30 pm

1 stop12h 20m

$395

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/18

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

Have a flexible travel schedule? Discover the best time to fly to Quito 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.

Cheapflights Insights

Everything you need to know about your flight from St. Louis to Quito

What is the cheapest month to book a flight from St. Louis to Quito?

Currently, April is the cheapest month in which you can book a flight from St. Louis to Quito (average of $463). Flying from St. Louis to Quito in December is currently the most expensive (average of $791). 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.

What is the cheapest time of day to fly from STL to UIO?

Find hourly flight availability from St. Louis to Quito. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 18, 2025.

One of the essential ways to save on airfare from St. Louis to Quito is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 5% on airfare.

Reviews of airlines servicing Quito

Get insights into the airlines that provide service to Quito. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Quito. Reviews last updated August 18, 2025.
Read through reviews of airlines operating flights from St. Louis to Quito, such as Delta, LATAM Airlines, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,981 reviews

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,981 reviews
Delta
8.0
Very good
7,981 reviews

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
LATAM Airlines
7.5
Good
1,844 reviews
Delta
8.0
Very good
7,981 reviews

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,925 reviews
Delta
8.0
Very good
7,981 reviews

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,981 reviews

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Quito. 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 Quito?

    Airlines like LATAM Airlines and United Airlines fly from St. Louis to Quito in about 12h 16m. The time it takes to get you to your destination can typically vary by up to 4h 54m. St. Louis and Quito are separated by a distance of 2790 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from St. Louis to Quito round-trip?

    Currently priced at $451, United Airlines will fly you from St. Louis to Quito and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from LATAM Airlines and Delta - these airlines can fly you to your destination from $571 and $595, respectively. United Airlines is priced at 45% lower than the current average price of a flight leaving 3 months from now.

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

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

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

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

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

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

    Currently, April is the cheapest month in which you can book a flight from St. Louis to Quito (average of $463). Flying from St. Louis to Quito in December is currently the most expensive (average of $791). 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for St. Louis to Quito

See prices for flight routes from nearby airports that may be better suited for you.
Kansas City to Quito flights
St. Louis to Guayaquil flights
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St. Louis to Baltra flights
St. Louis to San Cristobal flights

Top 4 airlines flying from St. Louis to Quito

Discover the top 4 airlines that operate flights from St. Louis to Quito. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$451Average$818FlexibilityNo cancel feeOn-time69%
LATAM AirlinesCheapest$571Average$799FlexibilityNo cancel feeOn-time81%
American AirlinesCheapest$591Average$892FlexibilityNo cancel feeOn-time71%
DeltaCheapest$595Average$762FlexibilityNo cancel feeOn-timeN/A

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