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Ecuador

$379+ 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 4/26. Fares are subject to change and may not be available on all flights or dates of travel.
STL — UIO
Jan 3 — Jan 101
Sat 1/3
Sat 1/10
1 adult, Economy
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Cheap 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 December 4, 2025.

This Mytrip deal was found by Cheapflights users on 12/4. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2511:51 amSTL - UIO
2 stops18h 29mMultiple Airlines
Mon 12/296:37 pmUIO - STL
2 stops17h 19mMultiple Airlines
Deal found 12/4$723
This United Airlines deal was found by Cheapflights users on 12/4. 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 12/46:42 pmSTL - GYE
2 stops27h 59mUnited Airlines
Fri 2/208:34 amGYE - STL
2 stops25h 49mUnited Airlines
Deal found 12/4$784
This KAYAK deal was found by Cheapflights users on 12/2. 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.
Sun 12/146:00 amSTL - UIO
1 stop13h 00mLATAM Airlines
Thu 12/1811:45 pmUIO - STL
1 stop12h 09mLATAM Airlines
Deal found 12/2$1,055
This United Airlines deal was found by Cheapflights users on 12/4. 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 12/256:00 amSTL - UIO
1 stop17h 30mUnited Airlines
Sun 12/281:35 amUIO - STL
2 stops21h 08mUnited Airlines
Deal found 12/4$1,081
This United Airlines deal was found by Cheapflights users on 12/3. 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.
Sun 12/144:45 pmSTL - UIO
1 stop12h 25mUnited Airlines
Wed 12/171:35 amUIO - STL
1 stop9h 14mUnited Airlines
Deal found 12/3$1,091
This Expedia deal was found by Cheapflights users on 12/4. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/259:47 amSTL - UIO
1 stop10h 38mLATAM Airlines
Mon 12/2911:45 pmUIO - STL
1 stop10h 13mLATAM Airlines
Deal found 12/4$1,244
This LATAM Airlines deal was found by Cheapflights users on 12/2. 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 12/275:55 amSTL - UIO
1 stop14h 30mLATAM Airlines
Fri 1/211:45 pmUIO - STL
1 stop10h 13mLATAM Airlines
Deal found 12/2$1,771
This American Airlines deal was found by Cheapflights users on 12/2. 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 12/275:00 amSTL - UIO
2 stops16h 18mAmerican Airlines
Fri 1/26:40 amUIO - STL
2 stops13h 42mAmerican Airlines
Deal found 12/2$2,349

Find 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 December 4, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$639
(American Airlines)

One-way from

$379
(Delta)
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 December 4, 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 1/15

9:59 am-9:35 pm

1 stop10h 36m

Quito Mariscal Sucr

Fri 1/23

11:45 pm-8:53 am

1 stop10h 08m

$625

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Sun 2/1

6:52 am-11:47 pm

2 stops15h 55m

Quito Mariscal Sucr

Sat 2/21

12:45 am-10:26 am

1 stop10h 41m

$639

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Fri 1/23

9:59 am-9:35 pm

1 stop10h 36m

Quito Mariscal Sucr

Sun 2/1

7:00 pm-5:50 pm

2 stops23h 50m

$639

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Sun 2/1

9:59 am-9:35 pm

1 stop10h 36m

Quito Mariscal Sucr

Sun 2/22

7:00 pm-5:42 pm

2 stops23h 42m

$639

St. LouisGuayaquil

STL - GYE

STLGYE

Lambert-St Louis

Sat 1/24

6:00 am-5:35 pm

2 stops34h 35m

Guayaquil Jose Joaquin de Olmedo

Wed 1/28

2:35 pm-10:00 pm

2 stops32h 25m

$671

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Sat 1/31

9:59 am-2:05 pm

2 stops27h 06m

Quito Mariscal Sucr

Wed 2/4

11:45 pm-8:53 am

1 stop10h 08m

$699

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Sat 1/31

4:49 pm-12:30 am

2 stops30h 41m

Quito Mariscal Sucr

Tue 2/3

1:35 am-3:52 pm

1 stop15h 17m

$703

St. LouisGuayaquil

STL - GYE

STLGYE

Lambert-St Louis

Sun 4/26

2:18 pm-6:55 am

2 stops16h 37m

$379

St. LouisGuayaquil

STL - GYE

STLGYE

Lambert-St Louis

Sat 4/25

8:30 am-11:38 pm

2 stops15h 08m

$380

St. LouisGuayaquil

STL - GYE

STLGYE

Lambert-St Louis

Sun 4/26

6:05 pm-1:33 pm

1 stop19h 28m

$388

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/3

Showing 1-10 of 16 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 December 4, 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 December 4, 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
8,011 reviews

Crew

8.5

Food

7.3

Boarding

8.1

Overall

7.9

Entertainment

7.9

Comfort

7.9

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
8,011 reviews
Delta
7.9
Good
8,011 reviews

Crew

8.5

Food

7.3

Boarding

8.1

Overall

7.9

Entertainment

7.9

Comfort

7.9

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
1,889 reviews
Delta
7.9
Good
8,011 reviews

Crew

8.5

Food

7.3

Boarding

8.1

Overall

7.9

Entertainment

7.9

Comfort

7.9

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
9,063 reviews
Delta
7.9
Good
8,011 reviews

Crew

8.5

Food

7.3

Boarding

8.1

Overall

7.9

Entertainment

7.9

Comfort

7.9

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
11,043 reviews
Delta
7.9
Good
8,011 reviews

Crew

8.5

Food

7.3

Boarding

8.1

Overall

7.9

Entertainment

7.9

Comfort

7.9

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 10h 36m. LATAM Airlines provides one of the quickest options available for as low as $625. 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 - 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for St. Louis to Ecuador

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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 December 4, 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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