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Ecuador

$427+ Cheap flights from St. Louis (STL) to Ecuador

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 12/4. Fares are subject to change and may not be available on all flights or dates of travel.
STL — UIO
Dec 6 — Dec 131
Sat 12/6
Sat 12/13
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 November 6, 2025.

This KAYAK deal was found by Cheapflights users on 11/4. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/42:47 pmSTL - GYE
1 stop7h 56mSpirit Airlines
Wed 12/1012:49 amGYE - STL
1 stop14h 03mSpirit Airlines
Deal found 11/4$427
This Kiwi.com deal was found by Cheapflights users on 11/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/42:47 pmSTL - GYE
1 stop31h 56mMultiple Airlines
Wed 12/1012:49 amGYE - STL
2 stops33h 58mMultiple Airlines
Deal found 11/4$473
This United Airlines deal was found by Cheapflights users on 11/4. 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 stops34h 21mUnited Airlines
Thu 12/118:30 amGYE - STL
2 stops32h 34mUnited Airlines
Deal found 11/4$587
This United Airlines deal was found by Cheapflights users on 11/4. 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 stops34h 21mUnited Airlines
Fri 2/2012:20 pmGYE - STL
2 stops34h 54mUnited Airlines
Deal found 11/4$606
This LATAM Airlines deal was found by Cheapflights users on 11/5. 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.
Wed 12/36:00 amSTL - UIO
1 stop13h 00mLATAM Airlines
Wed 12/107:00 pmUIO - STL
2 stops16h 45mLATAM Airlines
Deal found 11/5$608
This Delta deal was found by Cheapflights users on 11/5. 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.
Wed 12/311:40 amSTL - UIO
2 stops16h 37mDelta
Wed 12/107:00 pmUIO - STL
2 stops19h 16mDelta
Deal found 11/5$619
This LATAM Airlines deal was found by Cheapflights users on 11/5. 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 12/49:30 amSTL - UIO
1 stop9h 30mLATAM Airlines
Sat 12/1311:45 pmUIO - STL
1 stop9h 39mLATAM Airlines
Deal found 11/5$625
This United Airlines deal was found by Cheapflights users on 11/5. 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 - UIO
1 stop17h 15mUnited Airlines
Sat 12/138:00 amUIO - STL
2 stops15h 45mUnited Airlines
Deal found 11/5$629
This Delta deal was found by Cheapflights users on 11/5. 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.
Thu 12/49:30 amSTL - UIO
2 stops18h 47mDelta
Sat 12/137:00 pmUIO - STL
2 stops16h 45mDelta
Deal found 11/5$639
This American Airlines deal was found by Cheapflights users on 11/5. 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.
Wed 12/35:10 amSTL - UIO
1 stop13h 35mAmerican Airlines
Tue 12/912:55 amUIO - STL
1 stop16h 11mAmerican Airlines
Deal found 11/5$669
This American Airlines deal was found by Cheapflights users on 11/5. 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 12/45:15 amSTL - UIO
2 stops13h 30mAmerican Airlines
Fri 12/1212:55 amUIO - STL
2 stops12h 46mAmerican Airlines
Deal found 11/5$683
This eDestinos deal was found by Cheapflights users on 11/4. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/146:00 amSTL - GYE
2 stops23h 53mLATAM Airlines
Wed 1/148:42 pmGYE - STL
2 stops15h 23mLATAM Airlines
Deal found 11/4$770

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 November 6, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$427
(KAYAK)
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

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 November 6, 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. LouisGuayaquil

STL - GYE

STLGYE

Lambert-St Louis

Thu 12/4

2:47 pm-11:43 pm

1 stop7h 56m

Guayaquil Jose Joaquin de Olmedo

Wed 12/10

12:49 am-1:52 pm

1 stop14h 03m

$427

St. LouisGuayaquil

STL - GYE

STLGYE

Lambert-St Louis

Thu 12/4

2:47 pm-11:43 pm

1 stop31h 56m

Guayaquil Jose Joaquin de Olmedo

Wed 12/10

12:49 am-9:47 am

2 stops33h 58m

$473

St. LouisGuayaquil

STL - GYE

STLGYE

Lambert-St Louis

Thu 12/4

6:15 am-5:36 pm

2 stops34h 21m

Guayaquil Jose Joaquin de Olmedo

Thu 12/11

8:30 am-4:04 pm

2 stops32h 34m

$587

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Wed 1/21

1:00 pm-9:35 pm

1 stop7h 35m

Quito Mariscal Sucr

Wed 2/4

7:00 pm-11:06 am

2 stops17h 06m

$597

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Wed 12/3

6:52 am-11:02 pm

2 stops15h 10m

Quito Mariscal Sucr

Tue 12/9

12:55 am-4:06 pm

1 stop16h 11m

$619

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Wed 12/3

11:40 am-5:17 am

2 stops16h 37m

Quito Mariscal Sucr

Wed 12/10

7:00 pm-1:16 pm

2 stops19h 16m

$619

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Wed 1/21

10:07 am-12:30 am

1 stop13h 23m

Quito Mariscal Sucr

Tue 2/3

1:35 am-5:43 pm

2 stops17h 08m

$619

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Thu 12/4

9:30 am-8:00 pm

1 stop9h 30m

Quito Mariscal Sucr

Sat 12/13

11:45 pm-8:24 am

1 stop9h 39m

$625

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Thu 12/4

6:15 am-12:30 am

1 stop17h 15m

Quito Mariscal Sucr

Sat 12/13

8:00 am-10:45 pm

2 stops15h 45m

$629

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Thu 12/4

9:30 am-5:17 am

2 stops18h 47m

Quito Mariscal Sucr

Sat 12/13

7:00 pm-10:45 am

2 stops16h 45m

$639

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/4

Showing 1-10 of 19 results
1
2

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 November 6, 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 November 6, 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
7.9
Good
8,001 reviews

Overall

7.9

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Boarding

8.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,001 reviews
Delta
7.9
Good
8,001 reviews

Overall

7.9

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Boarding

8.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
LATAM Airlines
7.5
Good
1,874 reviews
Delta
7.9
Good
8,001 reviews

Overall

7.9

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Boarding

8.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,003 reviews
Delta
7.9
Good
8,001 reviews

Overall

7.9

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Boarding

8.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,040 reviews
Delta
7.9
Good
8,001 reviews

Overall

7.9

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Boarding

8.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

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 7h 35m. Spirit Airlines provides one of the quickest options available for as low as $597. There are 2790 mi between St. Louis and Ecuador. This flight may include one or multiple stops.

  • 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 - San Cristobal 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for St. Louis to Ecuador

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 November 6, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$516Average$890FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$634Average$768FlexibilityNo cancel feeOn-time69%
DeltaCheapest$661Average$763FlexibilityNo cancel feeOn-timeN/A
LATAM AirlinesCheapest$664Average$917FlexibilityNo cancel feeOn-time81%

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