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Ecuador

$234+ Cheap flights from St. Louis (STL) to Ecuador

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 2/10. Fares are subject to change and may not be available on all flights or dates of travel.
STL — UIO
Nov 13 — Nov 201
Thu 11/13
Thu 11/20
1 adult, Economy
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Find flight deals from St. Louis to Ecuador

Cheapest flights from St. Louis to Ecuador
Explore the most affordable flight options available from St. Louis to Ecuador. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 14, 2025.

This LATAM Airlines deal was found by Cheapflights users on 10/13. 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.
Thu 11/277:05 amSTL - UIO
1 stop10h 50mLATAM Airlines
Thu 12/47:00 pmUIO - STL
2 stops16h 45mLATAM Airlines
Deal found 10/13$608
This American Airlines deal was found by Cheapflights users on 10/13. 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.
Thu 11/275:15 amSTL - UIO
1 stop10h 41mAmerican Airlines
Wed 12/312:55 amUIO - STL
1 stop16h 11mAmerican Airlines
Deal found 10/13$615
This United Airlines deal was found by Cheapflights users on 10/13. 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.
Thu 11/276:30 amSTL - UIO
2 stops17h 00mUnited Airlines
Wed 12/31:35 amUIO - STL
2 stops15h 05mUnited Airlines
Deal found 10/13$619
This United Airlines deal was found by Cheapflights users on 10/12. 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.
Thu 11/136:15 amSTL - GYE
2 stops28h 03mUnited Airlines
Mon 11/1712:21 pmGYE - STL
2 stops31h 26mUnited Airlines
Deal found 10/12$694
This LATAM Airlines deal was found by Cheapflights users on 10/13. 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.
Sun 12/146:00 amSTL - UIO
1 stop13h 00mLATAM Airlines
Thu 12/187:00 pmUIO - STL
2 stops16h 54mLATAM Airlines
Deal found 10/13$731
This United Airlines deal was found by Cheapflights users on 10/14. 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.
Sat 11/111:20 amSTL - UIO
1 stop12h 25mUnited Airlines
Tue 11/111:35 amUIO - STL
1 stop15h 15mUnited Airlines
Deal found 10/14$742
This Delta deal was found by Cheapflights users on 10/13. 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.
Sun 12/146:00 amSTL - UIO
1 stop13h 00mDelta
Thu 12/1811:45 pmUIO - STL
1 stop9h 39mDelta
Deal found 10/13$756
This American Airlines deal was found by Cheapflights users on 10/13. 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 11/18:49 amSTL - UIO
2 stops12h 03mAmerican Airlines
Wed 11/128:27 amUIO - STL
1 stop15h 00mAmerican Airlines
Deal found 10/13$792
This American Airlines deal was found by Cheapflights users on 10/12. 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 12/145:10 amSTL - UIO
1 stop16h 52mAmerican Airlines
Wed 12/1712:54 amUIO - STL
1 stop17h 57mAmerican Airlines
Deal found 10/12$831
This United Airlines deal was found by Cheapflights users on 10/12. 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.
Wed 10/226:15 amSTL - GYE
2 stops17h 22mUnited Airlines
Wed 10/292:54 pmGYE - STL
2 stops27h 53mUnited Airlines
Deal found 10/12$841
This American Airlines deal was found by Cheapflights users on 10/12. 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.
Thu 11/134:41 pmSTL - GYE
1 stop29h 25mAmerican Airlines
Mon 11/176:00 amGYE - STL
2 stops18h 07mAmerican Airlines
Deal found 10/12$855
This United Airlines deal was found by Cheapflights users on 10/13. 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.
Thu 12/46:15 amSTL - GYE
2 stops30h 19mUnited Airlines
Fri 2/202:35 pmGYE - STL
2 stops22h 46mUnited Airlines
Deal found 10/13$882

Cheap flight deals from St. Louis to Ecuador

Keep the following information in mind while searching for St. Louis to Ecuador flight deals. Data was last updated October 14, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$597
(LATAM Airlines)

One-way from

$234
(Mytrip)
Provider with most accurate pricing for Lambert-St Louis-Guayaquil Jose Joaquin de Olmedo flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-Guayaquil Jose Joaquin de Olmedo flights.
Search Deals
From Lambert-St Louis to Ecuador
Search Deals
One-way flight from Lambert-St Louis to Ecuador
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Ecuador 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 October 14, 2025.
Use the filters below to find and compare flights from St. Louis to Ecuador that are best for you.

Fly from

St. Louis

Fly to

Ecuador

Route

Depart

Return

Price

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Thu 11/27

7:05 am-11:00 pm

2 stops14h 55m

Quito Mariscal Sucr

Thu 12/4

7:00 pm-10:45 am

2 stops16h 45m

$608

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Thu 11/27

5:15 am-4:56 pm

1 stop10h 41m

Quito Mariscal Sucr

Wed 12/3

12:55 am-4:06 pm

1 stop16h 11m

$615

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Thu 11/27

6:30 am-12:30 am

2 stops17h 00m

Quito Mariscal Sucr

Wed 12/3

1:35 am-3:40 pm

2 stops15h 05m

$619

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Mon 2/2

7:30 am-5:17 am

2 stops20h 47m

Quito Mariscal Sucr

Mon 2/23

7:00 pm-11:50 am

2 stops17h 50m

$619

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Mon 2/2

10:07 am-12:30 am

1 stop13h 23m

Quito Mariscal Sucr

Sun 2/22

1:35 am-10:14 pm

1 stop21h 39m

$624

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Sun 2/1

10:00 am-5:17 am

2 stops18h 17m

Quito Mariscal Sucr

Sun 2/22

7:00 pm-10:50 am

2 stops16h 50m

$683

St. LouisGuayaquil

STL - GYE

STLGYE

Lambert-St Louis

Thu 11/13

6:15 am-11:18 am

2 stops28h 03m

Guayaquil Jose Joaquin de Olmedo

Mon 11/17

12:21 pm-6:47 pm

2 stops31h 26m

$694

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Mon 2/2

5:15 am-11:47 pm

1 stop17h 32m

Quito Mariscal Sucr

Mon 2/23

7:45 am-11:46 pm

1 stop17h 01m

$726

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Sun 12/14

6:00 am-8:00 pm

1 stop13h 00m

Quito Mariscal Sucr

Thu 12/18

7:00 pm-10:54 am

2 stops16h 54m

$731

St. LouisGuayaquil

STL - GYE

STLGYE

Lambert-St Louis

Thu 12/4

6:15 am-11:41 pm

2 stops16h 26m

Guayaquil Jose Joaquin de Olmedo

Fri 2/20

12:20 pm-10:46 am

2 stops23h 26m

$882

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/12

Showing 1-10 of 25 results
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Best time to book a flight from St. Louis to Ecuador

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

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

Find hourly flight availability from St. Louis to Ecuador. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 14, 2025.

One of the essential ways to save on airfare from St. Louis to Ecuador is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the evening could potentially save you up to 37% on airfare.

Reviews of airlines servicing Ecuador

Get insights into the airlines that provide service to Ecuador. 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 Ecuador. Reviews last updated October 14, 2025.
See what other customers who have flown with Delta, LATAM Airlines, and United Airlines from St. Louis to Ecuador have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,975 reviews

Entertainment

7.9

Comfort

7.9

Crew

8.5

Food

7.3

Boarding

8.2

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Delta
8.0
Very good
7,975 reviews
Delta
8.0
Very good
7,975 reviews

Entertainment

7.9

Comfort

7.9

Crew

8.5

Food

7.3

Boarding

8.2

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
LATAM Airlines
7.5
Good
1,866 reviews
Delta
8.0
Very good
7,975 reviews

Entertainment

7.9

Comfort

7.9

Crew

8.5

Food

7.3

Boarding

8.2

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
United Airlines
7.4
Good
8,976 reviews
Delta
8.0
Very good
7,975 reviews

Entertainment

7.9

Comfort

7.9

Crew

8.5

Food

7.3

Boarding

8.2

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
American Airlines
7.2
Good
11,042 reviews
Delta
8.0
Very good
7,975 reviews

Entertainment

7.9

Comfort

7.9

Crew

8.5

Food

7.3

Boarding

8.2

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.

Related info for your journey

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

  • What airport do you fly from for flights from St. Louis to Ecuador?

    For a flight from St. Louis to Ecuador, you will be flying from Lambert-St Louis. Lambert-St Louis (STL) is just 12.7 mi from the center of the city.

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

    A quick flight from St. Louis to Ecuador can take about 10h 41m. LATAM Airlines provides one of the quickest options available for as low as $615. There are 2790 mi between St. Louis and Ecuador. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from St. Louis to Ecuador one-way?

    The cheapest airline one-way is Avianca, with whom users have recently found tickets for as low as $234. However, be on the lookout for offers from Delta and LATAM Airlines, as they are both options that can get you from St. Louis to Ecuador for a low price.

  • What are the most popular routes from St. Louis to Ecuador?

    Most travelers choose Lambert-St Louis - Quito Mariscal Sucr, Lambert-St Louis - Guayaquil Jose Joaquin de Olmedo or Lambert-St Louis - Baltra when deciding on the best route from St. Louis to Ecuador.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from St. Louis to Ecuador by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from St. Louis to Ecuador

Discover the top 4 airlines that operate flights from St. Louis to Ecuador. 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 October 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$516Average$948FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$636Average$768FlexibilityNo cancel feeOn-time69%
DeltaCheapest$648Average$768FlexibilityNo cancel feeOn-timeN/A
LATAM AirlinesCheapest$664Average$917FlexibilityNo cancel feeOn-time81%

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