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Ecuador

$300+ 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 8/15. Fares are subject to change and may not be available on all flights or dates of travel.
STL — UIO
Jul 7 — Jul 141
Mon 7/7
Mon 7/14
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 July 2, 2025.

Round-trip from

$614
(Delta)

One-way from

$300
(Kiwi.com)
From Lambert-St Louis to Ecuador
Search Deals
One-way flight from Lambert-St Louis to Ecuador
Search Deals

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 July 2, 2025.

This Delta deal was found by Cheapflights users on 6/30. 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 9/1611:04 amSTL - UIO
1 stop8h 01mDelta
Thu 9/2511:20 pmUIO - STL
1 stop8h 54mDelta
Deal found 6/30$614
This United Airlines deal was found by Cheapflights users on 7/1. 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 9/166:35 amSTL - UIO
2 stops16h 50mUnited Airlines
Wed 9/2412:35 amUIO - STL
1 stop18h 22mUnited Airlines
Deal found 7/1$619
This United Airlines deal was found by Cheapflights users on 7/1. 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 8/1611:15 amSTL - GYE
2 stops12h 22mMultiple Airlines
Sat 8/234:15 amGYE - STL
2 stops14h 43mMultiple Airlines
Deal found 7/1$625
This Delta deal was found by Cheapflights users on 6/30. 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 10/56:42 pmSTL - GYE
2 stops27h 41mDelta
Thu 10/98:30 pmGYE - STL
2 stops21h 32mDelta
Deal found 6/30$630
This United Airlines deal was found by Cheapflights users on 7/2. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/44:17 pmSTL - GYE
2 stops33h 28mUnited Airlines
Thu 2/193:55 amGYE - STL
2 stops37h 40mUnited Airlines
Deal found 7/2$655
This LATAM Airlines deal was found by Cheapflights users on 7/1. 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 10/56:04 amSTL - GYE
2 stops24h 51mLATAM Airlines
Thu 10/98:30 pmGYE - STL
2 stops21h 32mLATAM Airlines
Deal found 7/1$802
This American Airlines deal was found by Cheapflights users on 7/2. 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.
Thu 12/45:25 amSTL - GYE
1 stop15h 40mAmerican Airlines
Fri 2/207:35 amGYE - STL
1 stop9h 03mAmerican Airlines
Deal found 7/2$842
This SmartFares deal was found by Cheapflights users on 7/2. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/51:30 pmSTL - UIO
1 stop30h 30mLATAM Airlines
Mon 7/711:15 pmUIO - STL
1 stop10h 26mLATAM Airlines
Deal found 7/2$905
This Mytrip deal was found by Cheapflights users on 6/30. 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.
Sat 7/263:34 pmSTL - UIO
3 stops30h 51mMultiple Airlines
Sat 8/23:15 amUIO - STL
3 stops30h 37mMultiple Airlines
Deal found 6/30$1,035
This American Airlines deal was found by Cheapflights users on 7/2. 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.
Sun 7/137:30 amSTL - UIO
2 stops13h 59mAmerican Airlines
Mon 7/1411:40 pmUIO - STL
2 stops16h 20mAmerican Airlines
Deal found 7/2$1,327
This LATAM Airlines deal was found by Cheapflights users on 6/30. 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 10/1110:51 amSTL - GPS
3 stops23h 35mLATAM Airlines
Wed 10/1512:00 pmGPS - STL
3 stops19h 10mLATAM Airlines
Deal found 6/30$1,907
This LATAM Airlines deal was found by Cheapflights users on 6/30. 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 10/1110:51 amSTL - SCY
3 stops24h 12mLATAM Airlines
Tue 10/1412:08 pmSCY - STL
3 stops19h 02mLATAM Airlines
Deal found 6/30$2,082

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 July 2, 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

Tue 9/16

11:04 am-7:05 pm

1 stop8h 01m

Quito Mariscal Sucr

Thu 9/25

11:20 pm-8:14 am

1 stop8h 54m

$614

St. LouisGuayaquil

STL - GYE

STLGYE

Lambert-St Louis

Sat 8/16

11:15 am-11:37 pm

2 stops12h 22m

Guayaquil Jose Joaquin de Olmedo

Sat 8/23

4:15 am-6:58 pm

2 stops14h 43m

$625

St. LouisGuayaquil

STL - GYE

STLGYE

Lambert-St Louis

Sun 10/5

6:42 pm-10:23 pm

2 stops27h 41m

Guayaquil Jose Joaquin de Olmedo

Thu 10/9

8:30 pm-6:02 pm

2 stops21h 32m

$630

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-10:49 am

2 stops34h 14m

$635

St. LouisGuayaquil

STL - GYE

STLGYE

Lambert-St Louis

Thu 12/4

4:17 pm-2:45 am

2 stops33h 28m

Guayaquil Jose Joaquin de Olmedo

Thu 2/19

3:55 am-4:35 pm

2 stops37h 40m

$655

St. LouisGuayaquil

STL - GYE

STLGYE

Lambert-St Louis

Sun 10/5

6:04 am-6:55 am

2 stops24h 51m

Guayaquil Jose Joaquin de Olmedo

Thu 10/9

8:30 pm-6:02 pm

2 stops21h 32m

$802

St. LouisGuayaquil

STL - GYE

STLGYE

Lambert-St Louis

Thu 12/4

5:25 am-10:05 pm

1 stop15h 40m

Guayaquil Jose Joaquin de Olmedo

Fri 2/20

7:35 am-3:38 pm

1 stop9h 03m

$842

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Sat 7/26

5:23 pm-7:05 pm

2 stops49h 42m

Quito Mariscal Sucr

Sun 8/3

9:11 am-6:06 pm

2 stops32h 55m

$945

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Sat 7/26

3:34 pm-10:25 pm

3 stops30h 51m

Quito Mariscal Sucr

Sat 8/2

3:15 am-9:52 am

3 stops30h 37m

$1,035

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Sun 7/13

7:30 am-9:29 pm

2 stops13h 59m

Quito Mariscal Sucr

Mon 7/14

11:40 pm-4:00 pm

2 stops16h 20m

$1,327

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

Showing 1-10 of 14 results
1
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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 month to book a flight from St. Louis to Ecuador?

Currently, April is the cheapest month in which you can book a flight from St. Louis to Ecuador (average of $463). Flying from St. Louis to Ecuador 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 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 July 2, 2025.

When flying from St. Louis to Ecuador, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 July 2, 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

Overall

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

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
7,975 reviews
Delta
8.0
Very good
7,975 reviews

Overall

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

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
1,805 reviews
Delta
8.0
Very good
7,975 reviews

Overall

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

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
8,861 reviews
Delta
8.0
Very good
7,975 reviews

Overall

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

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
7,975 reviews

Overall

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

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 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.

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

    Most travelers choose Lambert-St Louis - Guayaquil Jose Joaquin de Olmedo, Lambert-St Louis - Quito Mariscal Sucr 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.

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

    Currently, April is the cheapest month in which you can book a flight from St. Louis to Ecuador (average of $463). Flying from St. Louis to Ecuador 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 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 July 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$497Average$862FlexibilityNo cancel feeOn-time69%
DeltaCheapest$569Average$759FlexibilityNo cancel feeOn-timeN/A
LATAM AirlinesCheapest$571Average$964FlexibilityNo cancel feeOn-time81%
American AirlinesCheapest$591Average$968FlexibilityNo cancel feeOn-time71%

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