$657+ 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 10/16. Fares are subject to change and may not be available on all flights or dates of travel.
STL — UIO
Oct 19 — Oct 261
Round-trip
1 adult, Economy
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Find cheap flights from St. Louis to Ecuador with Cheapflights
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Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Best
Last-minute
One-way
Cheapest flights from St. Louis to EcuadorExplore 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 September 19, 2026.
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 September 19, 2026.
This United Airlines deal was found by Cheapflights users on 9/18. 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 10/163:12 pm -
1 stop8h 13m
Thu 10/2212:35 am -
1 stop13h 35m
Deal found 9/18![United Airlines logo]()
$657
This Delta deal was found by Cheapflights users on 9/18. 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.
Mon 11/212:00 pm -
1 stop8h 25m
Sun 11/812:55 am -
1 stop18h 18m
Deal found 9/18![Delta logo]()
$667
This LATAM Airlines deal was found by Cheapflights users on 9/19. 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 11/217:18 pm -
2 stops22h 34m
Mon 11/308:55 am -
2 stops16h 01m
Deal found 9/19![LATAM Airlines logo]()
$670
This American Airlines deal was found by Cheapflights users on 9/16. 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 10/2211:21 am -
2 stops11h 18m
Sun 10/252:29 pm -
2 stops20h 22m
Deal found 9/16![American Airlines logo]()
$671
This United Airlines deal was found by Cheapflights users on 9/18. 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 11/206:50 pm -
2 stops28h 40m
Sun 11/291:35 am -
1 stop21h 50m
Deal found 9/18![United Airlines logo]()
$671
This Delta deal was found by Cheapflights users on 9/19. 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.
Sat 11/217:18 pm -
2 stops22h 34m
Mon 11/308:55 am -
2 stops16h 01m
Deal found 9/19![Delta logo]()
$672
This Delta deal was found by Cheapflights users on 9/19. 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.
Fri 11/207:18 pm -
2 stops22h 34m
Mon 11/308:55 am -
2 stops16h 01m
Deal found 9/19![Delta logo]()
$683
This United Airlines deal was found by Cheapflights users on 9/15. 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 10/138:35 am -
1 stop14h 50m
Mon 10/1912:35 am -
1 stop13h 35m
Deal found 9/15![United Airlines logo]()
$687
This American Airlines deal was found by Cheapflights users on 9/15. 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 9/195:10 pm -
1 stop29h 00m
Wed 9/306:00 am -
2 stops27h 29m
Deal found 9/15![American Airlines logo]()
$789
This American Airlines deal was found by Cheapflights users on 9/16. 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 12/204:36 pm -
2 stops20h 54m
Wed 12/303:30 pm -
2 stops18h 56m
Deal found 9/16![American Airlines logo]()
$918
This Orbitz deal was found by Cheapflights users on 9/18. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/126:00 am -
3 stops27h 27m
Sun 12/201:35 pm -
2 stops22h 17m
Deal found 9/18![LATAM Airlines logo]()
$3,266
Best flights from St. Louis to EcuadorDiscover carefully curated flight deals from St. Louis to Ecuador that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 19, 2026.
Discover carefully curated flight deals from St. Louis to Ecuador that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 19, 2026.
This United Airlines deal was found by Cheapflights users on 9/18. 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 10/163:12 pm -
1 stop8h 13m
Thu 10/2212:35 am -
1 stop13h 35m
Deal found 9/18![United Airlines logo]()
$657
This American Airlines deal was found by Cheapflights users on 9/14. 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 10/2211:21 am -
2 stops11h 18m
Sun 10/252:29 pm -
2 stops20h 22m
Deal found 9/14![American Airlines logo]()
$671
This Delta deal was found by Cheapflights users on 9/19. 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.
Sat 11/217:18 pm -
2 stops22h 34m
Mon 11/308:55 am -
2 stops16h 01m
Deal found 9/19![Delta logo]()
$672
This United Airlines deal was found by Cheapflights users on 9/18. 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 1/235:28 pm -
2 stops30h 02m
Sat 1/301:35 am -
1 stop13h 30m
Deal found 9/18![United Airlines logo]()
$662
This Delta deal was found by Cheapflights users on 9/19. 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.
Fri 11/207:18 pm -
2 stops22h 34m
Mon 11/308:55 am -
2 stops16h 01m
Deal found 9/19![Delta logo]()
$683
This United Airlines deal was found by Cheapflights users on 9/18. 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 11/2111:00 am -
1 stop12h 30m
Sun 11/291:35 am -
1 stop21h 50m
Deal found 9/18![United Airlines logo]()
$667
This United Airlines deal was found by Cheapflights users on 9/18. 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 11/206:50 pm -
2 stops28h 40m
Sun 11/291:35 am -
1 stop21h 50m
Deal found 9/18![United Airlines logo]()
$671
This American Airlines deal was found by Cheapflights users on 9/18. 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 12/204:36 pm -
2 stops20h 54m
Wed 12/303:30 pm -
2 stops19h 49m
Deal found 9/18![American Airlines logo]()
$945
This Orbitz deal was found by Cheapflights users on 9/18. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/126:00 am -
2 stops30h 55m
Sun 12/201:35 pm -
2 stops22h 17m
Deal found 9/18![LATAM Airlines logo]()
$3,266
Last-minute flights from St. Louis to EcuadorDiscover last-minute flight deals from St. Louis to Ecuador. Data last updated September 19, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Ecuador. Data last updated September 19, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 9/15. 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 9/195:10 pm -
1 stop29h 00m
Wed 9/306:00 am -
2 stops27h 29m
Deal found 9/15![American Airlines logo]()
$789
This United deal was found by Cheapflights users on 9/15. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/193:13 pm -
2 stops17h 52m
Wed 9/308:28 am -
3 stops27h 45m
Deal found 9/15![Multiple Airlines logo]()
$1,172
This KAYAK deal was found by Cheapflights users on 9/18. 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.
Tue 9/225:30 pm -
2 stops24h 00m
Thu 9/243:09 pm -
2 stops30h 12m
Deal found 9/18![Copa Airlines logo]()
$926
This LATAM Airlines deal was found by Cheapflights users on 9/15. 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 10/76:00 am -
1 stop12h 59m
Tue 10/139:00 am -
2 stops14h 54m
Deal found 9/15![LATAM Airlines logo]()
$777
This Delta deal was found by Cheapflights users on 9/15. 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 10/710:14 am -
1 stop8h 45m
Mon 10/1212:59 am -
1 stop9h 52m
Deal found 9/15![Delta logo]()
$803
This United Airlines deal was found by Cheapflights users on 9/15. 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 10/138:35 am -
1 stop14h 50m
Mon 10/1912:35 am -
1 stop13h 35m
Deal found 9/15![United Airlines logo]()
$687
This United Airlines deal was found by Cheapflights users on 9/18. 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 10/163:12 pm -
1 stop8h 13m
Thu 10/2212:35 am -
1 stop13h 35m
Deal found 9/18![United Airlines logo]()
$657
This Mytrip deal was found by Cheapflights users on 9/18. 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.
Fri 10/162:40 pm -
2 stops32h 20m
Fri 10/234:45 am -
3 stops38h 12m
Deal found 9/18![Multiple Airlines logo]()
$981
This American Airlines deal was found by Cheapflights users on 9/16. 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 10/2211:21 am -
2 stops11h 18m
Sun 10/252:29 pm -
2 stops20h 22m
Deal found 9/16![American Airlines logo]()
$671
One-way flights from St. Louis to EcuadorSearch for one-way flight options from St. Louis to Ecuador. Find affordable one-way fares based on user searches. Data last updated September 19, 2026.
Search for one-way flight options from St. Louis to Ecuador. Find affordable one-way fares based on user searches. Data last updated September 19, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/18. 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.
Sat 12/126:13 pm -
3 stops41h 47m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/18![Multiple Airlines logo]()
$767
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 September 19, 2026.
Most accurate provider | Expedia 1 star |
|---|---|
Most trusted provider | Expedia 3 stars |
Round-trip from | $657 (United Airlines) |
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 7,457,451 searches. Data last updated September 19, 2026.
Use the filters below to find and compare flights from St. Louis to Ecuador that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
St. LouisQuito
STL Lambert-St Louis - UIO Quito Mariscal Sucr
STLUIO
Lambert-St Louis
Fri 10/16
3:12 pm-11:25 pm
1 stop8h 13m
Quito Mariscal Sucr
Thu 10/22
12:35 am-2:10 pm
1 stop13h 35m
$657
St. LouisQuito
STL Lambert-St Louis - UIO Quito Mariscal Sucr
STLUIO
Lambert-St Louis
Sat 1/23
5:28 pm-12:30 am
2 stops30h 02m
Quito Mariscal Sucr
Sat 1/30
1:35 am-2:05 pm
1 stop13h 30m
$662
St. LouisQuito
STL Lambert-St Louis - UIO Quito Mariscal Sucr
STLUIO
Lambert-St Louis
Sat 11/21
11:00 am-12:30 am
1 stop12h 30m
Quito Mariscal Sucr
Sun 11/29
1:35 am-10:25 pm
1 stop21h 50m
$667
St. LouisGuayaquil
STL Lambert-St Louis - GYE Guayaquil Jose Joaquin de Olmedo
STLGYE
Lambert-St Louis
Thu 10/22
11:21 am-10:39 pm
2 stops11h 18m
Guayaquil Jose Joaquin de Olmedo
Sun 10/25
2:29 pm-10:51 am
2 stops20h 22m
$671
St. LouisQuito
STL Lambert-St Louis - UIO Quito Mariscal Sucr
STLUIO
Lambert-St Louis
Fri 11/20
6:50 pm-12:30 am
2 stops28h 40m
Quito Mariscal Sucr
Sun 11/29
1:35 am-10:25 pm
1 stop21h 50m
$671
St. LouisQuito
STL Lambert-St Louis - UIO Quito Mariscal Sucr
STLUIO
Lambert-St Louis
Sat 11/21
7:18 pm-6:52 pm
2 stops22h 34m
Quito Mariscal Sucr
Mon 11/30
8:55 am-11:56 pm
2 stops16h 01m
$672
St. LouisQuito
STL Lambert-St Louis - UIO Quito Mariscal Sucr
STLUIO
Lambert-St Louis
Fri 11/20
7:18 pm-6:52 pm
2 stops22h 34m
Quito Mariscal Sucr
Mon 11/30
8:55 am-11:56 pm
2 stops16h 01m
$683
St. LouisBaltra
STL Lambert-St Louis - GPS Baltra
STLGPS
Lambert-St Louis
Sat 12/12
6:13 pm-12:00 pm
3 stops41h 47m
Baltra
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$767
St. LouisGuayaquil
STL Lambert-St Louis - GYE Guayaquil Jose Joaquin de Olmedo
STLGYE
Lambert-St Louis
Sun 12/20
4:36 pm-2:30 pm
2 stops20h 54m
Guayaquil Jose Joaquin de Olmedo
Wed 12/30
3:30 pm-10:19 am
2 stops19h 49m
$945
St. LouisBaltra
STL Lambert-St Louis - GPS Baltra
STLGPS
Lambert-St Louis
Sat 12/12
6:00 am-12:55 pm
2 stops30h 55m
Baltra
Sun 12/20
1:35 pm-11:52 am
2 stops22h 17m
$3,266
Sorted by cheapest first
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.
STL-GPS
STL-UIO
STL-GYE
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
STL-EC0
STL-GPS
STL-UIO
STL-GYE
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 September 19, 2026.
See what other customers who have flown with Delta and American 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.
Overall
7.8
Food
7.2
Boarding
8.1
Entertainment
7.8
Crew
8.5
Comfort
7.8
Reviews
1 / 20
4.0
OkayJennifer,Sep 2026
ORD - LGA
Overall
7.8
Food
7.2
Boarding
8.1
Entertainment
7.8
Crew
8.5
Comfort
7.8
Reviews
1 / 20
4.0
OkayJennifer,Sep 2026
ORD - LGA
Overall
7.8
Food
7.2
Boarding
8.1
Entertainment
7.8
Crew
8.5
Comfort
7.8
Reviews
1 / 20
4.0
OkayJennifer,Sep 2026
ORD - LGA
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.
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Alternative routes for St. Louis to Ecuador
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Complete your trip
Complete your trip to Ecuador by adding a car rental and/or hotel reservation to your travel itinerary.
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Find flights from St. Louis to Ecuador, based on your preferred cabin class, be it economy, premium economy, business, or first class.
St. Louis and Ecuador flights
Browse other St. Louis and Ecuador flight options. Last updated on September 19, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Fly to Ecuador regions
Consider these flights traveling to Ecuador regions.
Top 2 airlines flying from St. Louis to Ecuador
Discover the top 2 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 7,457,451 searches. Data last updated September 19, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$592 | Average$826 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$687 | Average$849 | FlexibilityNo cancel fee | On-timeN/A |