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St. Louis

$322+ Cheap flights from Ecuador to St. Louis (STL)

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 9/23. Fares are subject to change and may not be available on all flights or dates of travel.
UIO — STL
Aug 31 — Sep 71
Mon 8/31
Mon 9/7
1 adult, Economy
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Cheap flight deals from Ecuador to St. Louis

Cheapest flights from Ecuador to St. Louis
Explore the most affordable flight options available from Ecuador to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 1, 2026.

This United Airlines deal was found by Cheapflights users on 7/27. 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 12/201:35 am
UIO
-
STL
2 stops22h 58m
United Airlines
Thu 12/316:15 am
STL
-
UIO
1 stop22h 55m
United Airlines
Deal found 7/27$782
This United Airlines deal was found by Cheapflights users on 7/28. 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 10/1512:35 am
UIO
-
STL
2 stops39h 08m
United Airlines
Sun 10/256:50 pm
STL
-
UIO
2 stops28h 40m
United Airlines
Deal found 7/28$800
This United Airlines deal was found by Cheapflights users on 7/27. 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 12/201:35 am
UIO
-
STL
2 stops22h 58m
United Airlines
Fri 1/16:50 pm
STL
-
UIO
2 stops28h 40m
United Airlines
Deal found 7/27$812
This United Airlines deal was found by Cheapflights users on 7/28. 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 9/1712:35 am
UIO
-
STL
2 stops22h 24m
United Airlines
Sun 9/276:00 am
STL
-
UIO
2 stops23h 00m
United Airlines
Deal found 7/28$830
This Expedia deal was found by Cheapflights users on 7/27. 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.
Mon 12/219:30 am
UIO
-
STL
2 stops30h 56m
Air Canada
Sat 1/24:05 pm
STL
-
UIO
2 stops32h 00m
Air Canada
Deal found 7/27$835
This United Airlines deal was found by Cheapflights users on 7/27. 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 12/207:45 am
UIO
-
STL
2 stops14h 33m
United Airlines
Fri 1/16:50 pm
STL
-
UIO
2 stops28h 40m
United Airlines
Deal found 7/27$842
This United Airlines deal was found by Cheapflights users on 7/29. 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.
Fri 9/1112:35 am
UIO
-
STL
1 stop13h 40m
United Airlines
Sat 9/198:30 am
STL
-
UIO
2 stops20h 30m
United Airlines
Deal found 7/29$866
This United Airlines deal was found by Cheapflights users on 7/27. 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.
Mon 12/217:45 am
UIO
-
STL
1 stop15h 34m
United Airlines
Mon 1/46:50 pm
STL
-
UIO
2 stops28h 40m
United Airlines
Deal found 7/27$872
This United Airlines deal was found by Cheapflights users on 7/27. 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 12/201:35 am
UIO
-
STL
2 stops22h 58m
United Airlines
Sun 1/36:15 am
STL
-
UIO
1 stop22h 55m
United Airlines
Deal found 7/27$876
This United Airlines deal was found by Cheapflights users on 7/27. 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 12/191:35 am
UIO
-
STL
1 stop21h 44m
United Airlines
Mon 1/46:50 pm
STL
-
UIO
2 stops28h 40m
United Airlines
Deal found 7/27$902
This United Airlines deal was found by Cheapflights users on 7/27. 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 12/191:35 am
UIO
-
STL
2 stops20h 43m
United Airlines
Sun 1/36:15 am
STL
-
UIO
1 stop17h 15m
United Airlines
Deal found 7/27$906
This United Airlines deal was found by Cheapflights users on 7/28. 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 8/2012:35 am
UIO
-
STL
1 stop9h 35m
United Airlines
Sun 8/308:35 am
STL
-
UIO
1 stop14h 50m
United Airlines
Deal found 7/28$920

Find flight deals from Ecuador to St. Louis

Keep the following information in mind while searching for Ecuador to St. Louis flight deals. Data was last updated August 1, 2026.

Round-trip from

$782
(United Airlines)

One-way from

$322
(Kiwi.com)
From Ecuador to Lambert-St Louis
Search Deals
One-way flight from Ecuador to Lambert-St Louis
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ecuador to St. Louis 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 August 1, 2026.
Use the filters below to find and compare flights from Ecuador to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

QuitoSt. Louis

UIO - STL

UIOSTL

Quito Mariscal Sucr

Thu 10/15

12:35 am-10:30 pm

1 stop21h 55m

Lambert-St Louis

Sun 10/25

6:50 pm-11:30 pm

2 stops28h 40m

$800

QuitoSt. Louis

UIO - STL

UIOSTL

Quito Mariscal Sucr

Sun 12/20

1:35 am-11:33 pm

2 stops22h 58m

Lambert-St Louis

Fri 1/1

6:15 am-12:30 am

1 stop17h 15m

$812

QuitoSt. Louis

UIO - STL

UIOSTL

Quito Mariscal Sucr

Sun 12/20

7:45 am-9:18 pm

2 stops14h 33m

Lambert-St Louis

Thu 12/31

6:15 am-6:10 am

1 stop22h 55m

$812

QuitoSt. Louis

UIO - STL

UIOSTL

Quito Mariscal Sucr

Thu 9/17

12:35 am-10:59 pm

2 stops22h 24m

Lambert-St Louis

Sun 9/27

6:00 am-5:00 am

2 stops23h 00m

$830
Quickest round-trip

QuitoSt. Louis

UIO - STL

UIOSTL

Quito Mariscal Sucr

Fri 9/11

12:35 am-2:15 pm

1 stop13h 40m

Lambert-St Louis

Sat 9/19

3:13 pm-5:00 am

1 stop13h 47m

$866

QuitoSt. Louis

UIO - STL

UIOSTL

Quito Mariscal Sucr

Mon 12/21

1:35 am-10:19 pm

1 stop21h 44m

Lambert-St Louis

Mon 1/4

6:50 pm-12:30 am

2 stops28h 40m

$872

QuitoSt. Louis

UIO - STL

UIOSTL

Quito Mariscal Sucr

Mon 12/21

1:35 am-11:33 pm

2 stops22h 58m

Lambert-St Louis

Fri 1/1

6:50 pm-12:30 am

2 stops28h 40m

$902

QuitoSt. Louis

UIO - STL

UIOSTL

Quito Mariscal Sucr

Fri 8/21

7:00 am-12:02 pm

3 stops53h 02m

Lambert-St Louis

Sun 8/30

8:35 am-5:00 am

1 stop20h 25m

$920
Cheapest one-way

QuitoSt. Louis

UIO - STL

UIOSTL

Quito Mariscal Sucr

Sat 9/26

6:42 pm-1:10 pm

3 stops42h 28m

$323

QuitoSt. Louis

UIO - STL

UIOSTL

Quito Mariscal Sucr

Wed 9/23

8:47 pm-1:10 pm

3 stops40h 23m

$328

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Showing 1-10 of 14 resultsSorted by cheapest first
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Best time to book a flight from Ecuador to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Ecuador 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 Ecuador to St. Louis

No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Ecuador to St. Louis. 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 into for flights to St. Louis from Ecuador?

    If you book a flight to St. Louis from Ecuador, you will be flying to Lambert-St Louis, which is the city’s only airport. Lambert-St Louis (STL) is located 12.7 mi from the center of St. Louis.

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

    A quick flight from Ecuador to St. Louis can take about 21h 55m. United Airlines provides one of the quickest options available for as low as $800. Airlines will cover a distance of 2790 mi.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Ecuador to St. Louis 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

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Edwardsville
O'Fallon
Fenton
Swansea
Fairview Heights
Eureka
Maryland Heights
Collinsville
Wentzville
Glencoe
Chesterfield
Farmington

Browse thousands of different options on Cheapflights for your next trip

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