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Ecuador

$373+ 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 6/16. Fares are subject to change and may not be available on all flights or dates of travel.
STL — UIO
feb. 13 — feb. 201
vie. 2/13
vie. 2/20
1 adult, Economy
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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 enero 14, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$590
(American Airlines)

One-way from

$373
(American Airlines)
Provider with most accurate pricing for Lambert-St Louis-Guayaquil Jose Joaquin de Olmedo flight deals.
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Provider most trusted by Cheapflights users for Lambert-St Louis-Guayaquil Jose Joaquin de Olmedo flights.
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From Lambert-St Louis to Ecuador
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One-way flight from Lambert-St Louis to Ecuador
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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 enero 14, 2026.

This American Airlines deal was found by Cheapflights users on 1/13. 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.
lun. 3/95:15 am
STL
-
GYE
1 stop8h 15m
American Airlines
lun. 3/166:12 am
GYE
-
STL
2 stops15h 09m
American Airlines
Deal found 1/13$590
This LATAM Airlines deal was found by Cheapflights users on 1/12. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 2/2611:55 am
STL
-
UIO
1 stop8h 40m
LATAM Airlines
jue. 3/511:45 pm
UIO
-
STL
1 stop10h 21m
LATAM Airlines
Deal found 1/12$616
This American Airlines deal was found by Cheapflights users on 1/12. 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.
jue. 2/268:00 am
STL
-
UIO
2 stops13h 59m
American Airlines
mié. 3/412:44 am
UIO
-
STL
1 stop17h 56m
American Airlines
Deal found 1/12$620
This United Airlines deal was found by Cheapflights users on 1/12. 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.
dom. 4/266:00 am
STL
-
UIO
1 stop17h 25m
United Airlines
mar. 5/512:35 am
UIO
-
STL
1 stop15h 23m
United Airlines
Deal found 1/12$626
This LATAM Airlines deal was found by Cheapflights users on 1/12. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 4/261:11 pm
STL
-
UIO
2 stops15h 32m
LATAM Airlines
mié. 5/66:50 pm
UIO
-
STL
2 stops15h 55m
LATAM Airlines
Deal found 1/12$630
This LATAM Airlines deal was found by Cheapflights users on 1/13. 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.
mar. 2/106:00 am
STL
-
UIO
2 stops16h 00m
LATAM Airlines
mar. 2/1711:45 pm
UIO
-
STL
1 stop10h 21m
LATAM Airlines
Deal found 1/13$636
This Delta deal was found by Cheapflights users on 1/13. 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.
mié. 5/137:20 am
STL
-
UIO
2 stops21h 23m
Delta
vie. 8/216:50 pm
UIO
-
STL
2 stops15h 51m
Delta
Deal found 1/13$640
This American Airlines deal was found by Cheapflights users on 1/13. 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.
mar. 2/106:52 am
STL
-
UIO
2 stops15h 55m
American Airlines
lun. 2/1612:44 am
UIO
-
STL
2 stops15h 44m
American Airlines
Deal found 1/13$674
This American Airlines deal was found by Cheapflights users on 1/12. 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.
lun. 2/237:00 am
STL
-
UIO
2 stops14h 59m
American Airlines
vie. 2/2712:44 am
UIO
-
STL
2 stops12h 49m
American Airlines
Deal found 1/12$737
This LATAM Airlines deal was found by Cheapflights users on 1/11. 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.
lun. 3/26:00 am
STL
-
UIO
1 stop14h 35m
LATAM Airlines
mié. 3/411:45 pm
UIO
-
STL
1 stop12h 17m
LATAM Airlines
Deal found 1/11$747
This Ovago deal was found by Cheapflights users on 1/12. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 2/2310:13 am
STL
-
UIO
1 stop10h 22m
LATAM Airlines
sáb. 2/2811:45 pm
UIO
-
STL
1 stop10h 21m
LATAM Airlines
Deal found 1/12$762
This Ovago deal was found by Cheapflights users on 1/13. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 2/39:59 am
STL
-
UIO
1 stop10h 36m
LATAM Airlines
sáb. 2/1411:45 pm
UIO
-
STL
1 stop10h 21m
LATAM Airlines
Deal found 1/13$763

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 enero 14, 2026.
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

lun. 3/9

5:15 am-1:30 pm

1 stop8h 15m

Guayaquil Jose Joaquin de Olmedo

lun. 3/16

6:12 am-9:21 pm

2 stops15h 09m

$590

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

jue. 2/26

11:55 am-9:35 pm

1 stop8h 40m

Quito Mariscal Sucr

jue. 3/5

11:45 pm-9:06 am

1 stop10h 21m

$616

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

dom. 4/26

6:00 am-11:25 pm

1 stop17h 25m

Quito Mariscal Sucr

mar. 5/5

12:35 am-3:58 pm

1 stop15h 23m

$626

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

dom. 4/26

1:11 pm-4:43 am

2 stops15h 32m

Quito Mariscal Sucr

mié. 5/6

6:50 pm-10:45 am

2 stops15h 55m

$630

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

mié. 5/13

5:24 am-10:24 pm

1 stop17h 00m

Quito Mariscal Sucr

vie. 8/21

6:09 am-11:59 pm

1 stop17h 50m

$636

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

mar. 2/10

9:59 am-9:35 pm

1 stop10h 36m

Quito Mariscal Sucr

mar. 2/17

11:45 pm-9:06 am

1 stop10h 21m

$636

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

mié. 5/13

7:20 am-6:59 pm

1 stop11h 39m

Quito Mariscal Sucr

vie. 8/21

6:50 pm-12:53 pm

2 stops18h 03m

$640

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

mar. 2/10

9:33 am-11:47 pm

2 stops13h 14m

Quito Mariscal Sucr

lun. 2/16

12:44 am-3:28 pm

2 stops15h 44m

$674

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

lun. 3/2

6:00 am-9:35 pm

1 stop14h 35m

Quito Mariscal Sucr

mié. 3/4

6:45 pm-5:42 pm

2 stops23h 57m

$747

St. LouisGuayaquil

STL - GYE

STLGYE

Lambert-St Louis

sáb. 1/31

4:42 pm-5:35 pm

2 stops47h 53m

Guayaquil Jose Joaquin de Olmedo

mié. 2/4

12:20 pm-9:22 am

2 stops22h 02m

$857

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/12

Showing 1-10 of 24 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
No data available for this route at this time. Please check back soon.

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 enero 14, 2026.
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
8,043 reviews

Food

7.2

Overall

7.9

Entertainment

7.8

Boarding

8.1

Crew

8.5

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
8,043 reviews
Delta
7.9
Good
8,043 reviews

Food

7.2

Overall

7.9

Entertainment

7.8

Boarding

8.1

Crew

8.5

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
1,904 reviews
Delta
7.9
Good
8,043 reviews

Food

7.2

Overall

7.9

Entertainment

7.8

Boarding

8.1

Crew

8.5

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
9,159 reviews
Delta
7.9
Good
8,043 reviews

Food

7.2

Overall

7.9

Entertainment

7.8

Boarding

8.1

Crew

8.5

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
11,125 reviews
Delta
7.9
Good
8,043 reviews

Food

7.2

Overall

7.9

Entertainment

7.8

Boarding

8.1

Crew

8.5

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 8h 15m. American Airlines provides one of the quickest options available for as low as $590. There are 2902 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

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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 enero 14, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$516Average$898FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$634Average$768FlexibilityNo cancel feeOn-time69%
DeltaCheapest$661Average$782FlexibilityNo cancel feeOn-timeN/A
LATAM AirlinesCheapest$664Average$917FlexibilityNo cancel feeOn-time81%

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