$325+ 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 1/5. Fares are subject to change and may not be available on all flights or dates of travel.
STL — UIO
Aug 29 — Sep 51
Round-trip
1 adult, Economy
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Best
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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 July 30, 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 July 30, 2026.
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/225:00 am
STL
- GYE
1 stop17h 45m
American Airlines
Sun 10/256:00 am
GYE
- STL
1 stop15h 56m
American Airlines
Deal found 7/28![American Airlines logo]()
$606
This United Airlines deal was found by Cheapflights users on 7/26. 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.
Wed 9/93:13 pm
STL
- UIO
1 stop8h 12m
United Airlines
Tue 9/1512:35 am
UIO
- STL
1 stop9h 35m
United Airlines
Deal found 7/26![United Airlines logo]()
$697
This LATAM Airlines deal was found by Cheapflights users on 7/25. 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.
Tue 9/86:00 am
STL
- UIO
1 stop12h 59m
LATAM Airlines
Tue 9/159:00 am
UIO
- STL
2 stops14h 42m
LATAM Airlines
Deal found 7/25![LATAM Airlines logo]()
$699
This American Airlines deal was found by Cheapflights users on 7/26. 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 9/105:00 am
STL
- GYE
1 stop17h 10m
American Airlines
Thu 9/176:00 am
GYE
- STL
1 stop17h 59m
American Airlines
Deal found 7/26![American Airlines logo]()
$700
This KAYAK 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2711:00 am
STL
- UIO
1 stop7h 59m
LATAM Airlines
Wed 9/212:59 am
UIO
- STL
1 stop8h 21m
LATAM Airlines
Deal found 7/28![LATAM Airlines logo]()
$702
This LATAM Airlines deal was found by Cheapflights users on 7/25. 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.
Tue 9/87:05 am
STL
- UIO
2 stops12h 00m
Multiple Airlines
Tue 9/159:00 am
UIO
- STL
2 stops14h 42m
Multiple Airlines
Deal found 7/25![Multiple Airlines logo]()
$712
This Delta deal was found by Cheapflights users on 7/25. 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 9/87:05 am
STL
- UIO
1 stop11h 54m
Delta
Mon 9/1412:59 am
UIO
- STL
1 stop22h 43m
Delta
Deal found 7/25![Delta logo]()
$713
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.
Thu 12/36:15 am
STL
- UIO
1 stop17h 15m
United Airlines
Sun 12/131:35 am
UIO
- STL
2 stops39h 06m
United Airlines
Deal found 7/27![United Airlines logo]()
$719
This United Airlines deal was found by Cheapflights users on 7/26. 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 9/266:15 am
STL
- UIO
1 stop17h 10m
United Airlines
Fri 10/212:35 am
UIO
- STL
1 stop13h 35m
United Airlines
Deal found 7/26![United Airlines logo]()
$737
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/37:18 pm
STL
- UIO
2 stops22h 24m
Delta
Mon 12/148:45 am
UIO
- STL
2 stops16h 11m
Delta
Deal found 7/27![Delta logo]()
$739
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 9/256:15 am
STL
- UIO
1 stop17h 10m
United Airlines
Mon 9/287:00 am
UIO
- STL
1 stop15h 30m
United Airlines
Deal found 7/29![United Airlines logo]()
$782
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2710:44 am
STL
- UIO
2 stops13h 13m
American Airlines
Thu 9/311:56 pm
UIO
- STL
2 stops13h 06m
American Airlines
Deal found 7/28![American Airlines logo]()
$783
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 July 30, 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 July 30, 2026.
This American Airlines deal was found by Cheapflights users on 7/25. 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 10/226:00 am
STL
- GYE
2 stops16h 45m
American Airlines
Sun 10/252:29 pm
GYE
- STL
2 stops20h 22m
American Airlines
Deal found 7/25![American Airlines logo]()
$611
This KAYAK 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2711:00 am
STL
- UIO
1 stop7h 59m
LATAM Airlines
Wed 9/212:59 am
UIO
- STL
1 stop8h 21m
LATAM Airlines
Deal found 7/28![LATAM Airlines logo]()
$702
This United Airlines deal was found by Cheapflights users on 7/26. 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.
Wed 9/910:53 am
STL
- UIO
2 stops12h 32m
United Airlines
Tue 9/1512:35 am
UIO
- STL
2 stops15h 03m
United Airlines
Deal found 7/26![United Airlines logo]()
$702
This Delta deal was found by Cheapflights users on 7/25. 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 9/87:05 am
STL
- UIO
1 stop11h 54m
Delta
Mon 9/1412:59 am
UIO
- STL
1 stop22h 43m
Delta
Deal found 7/25![Delta logo]()
$713
This United 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/611:10 am
STL
- GPS
2 stops26h 10m
Multiple Airlines
Tue 10/131:55 pm
GPS
- STL
3 stops23h 15m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$1,063
This United Airlines deal was found by Cheapflights users on 7/26. 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 9/266:15 am
STL
- UIO
1 stop17h 10m
United Airlines
Fri 10/212:35 am
UIO
- STL
1 stop13h 35m
United Airlines
Deal found 7/26![United Airlines logo]()
$737
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2710:44 am
STL
- UIO
2 stops13h 13m
American Airlines
Thu 9/311:56 pm
UIO
- STL
2 stops13h 06m
American Airlines
Deal found 7/28![American Airlines logo]()
$783
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 9/256:15 am
STL
- UIO
1 stop17h 10m
United Airlines
Mon 9/287:00 am
UIO
- STL
1 stop15h 30m
United Airlines
Deal found 7/29![United Airlines logo]()
$782
This United Airlines deal was found by Cheapflights users on 7/26. 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 8/96:14 am
STL
- UIO
1 stop17h 11m
United Airlines
Wed 8/1212:35 am
UIO
- STL
1 stop9h 35m
United Airlines
Deal found 7/26![United Airlines logo]()
$1,001
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/21:22 pm
STL
- GPS
3 stops44h 48m
LATAM Airlines
Tue 8/412:35 pm
GPS
- STL
3 stops20h 19m
LATAM Airlines
Deal found 7/29![LATAM Airlines logo]()
$2,274
Last-minute flights from St. Louis to EcuadorDiscover last-minute flight deals from St. Louis to Ecuador. Data last updated July 30, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Ecuador. Data last updated July 30, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 7/25. 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.
Wed 7/296:14 am
STL
- UIO
1 stop17h 11m
United Airlines
Fri 7/317:00 am
UIO
- STL
2 stops29h 11m
United Airlines
Deal found 7/25![United Airlines logo]()
$1,006
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/21:22 pm
STL
- GPS
3 stops44h 48m
LATAM Airlines
Tue 8/412:35 pm
GPS
- STL
3 stops20h 19m
LATAM Airlines
Deal found 7/29![LATAM Airlines logo]()
$2,274
This LATAM Airlines deal was found by Cheapflights users on 7/25. 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 8/96:00 am
STL
- UIO
1 stop12h 59m
LATAM Airlines
Thu 8/139:00 am
UIO
- STL
2 stops14h 58m
LATAM Airlines
Deal found 7/25![LATAM Airlines logo]()
$974
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 8/96:14 am
STL
- UIO
1 stop17h 11m
United Airlines
Wed 8/1212:35 am
UIO
- STL
1 stop9h 35m
United Airlines
Deal found 7/27![United Airlines logo]()
$1,001
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/97:00 am
STL
- UIO
1 stop11h 59m
Delta
Wed 8/1212:59 am
UIO
- STL
1 stop13h 34m
Delta
Deal found 7/28![Delta logo]()
$1,011
This KAYAK 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2711:00 am
STL
- UIO
1 stop7h 59m
LATAM Airlines
Wed 9/212:59 am
UIO
- STL
1 stop8h 21m
LATAM Airlines
Deal found 7/28![LATAM Airlines logo]()
$702
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2710:44 am
STL
- UIO
2 stops13h 13m
American Airlines
Thu 9/311:56 pm
UIO
- STL
2 stops13h 06m
American Airlines
Deal found 7/28![American Airlines logo]()
$783
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 July 30, 2026.
Search for one-way flight options from St. Louis to Ecuador. Find affordable one-way fares based on user searches. Data last updated July 30, 2026.
This Travelocity deal was found by Cheapflights users on 7/26. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/54:05 pm
STL
- UIO
2 stops32h 00m
Air Canada
Deal found 7/26![Air Canada logo]()
$325
This United Airlines deal was found by Cheapflights users on 7/26. 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 1/511:00 am
STL
- UIO
1 stop12h 30m
United Airlines
Deal found 7/26![United Airlines logo]()
$437
This Kiwi.com deal was found by Cheapflights users on 7/26. 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.
Tue 1/59:00 am
STL
- UIO
3 stops30h 35m
Aeromexico
Deal found 7/26![Aeromexico logo]()
$482
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 July 30, 2026.
Most accurate provider | Expedia 1 star |
|---|---|
Most trusted provider | Expedia 3 stars |
Round-trip from | $606 (American Airlines) |
One-way from | $325 (Travelocity) |
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 30, 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
St. LouisGuayaquil
STL - GYE
STLGYE
Lambert-St Louis
Thu 10/22
6:00 am-10:45 pm
2 stops16h 45m
Guayaquil Jose Joaquin de Olmedo
Sun 10/25
2:29 pm-10:51 am
2 stops20h 22m
$611
Quickest round-trip
St. LouisQuito
STL - UIO
STLUIO
Lambert-St Louis
Thu 8/27
11:00 am-6:59 pm
1 stop7h 59m
Quito Mariscal Sucr
Wed 9/2
12:59 am-9:20 am
1 stop8h 21m
$702
St. LouisQuito
STL - UIO
STLUIO
Lambert-St Louis
Wed 9/9
10:53 am-11:25 pm
2 stops12h 32m
Quito Mariscal Sucr
Tue 9/15
12:35 am-3:38 pm
2 stops15h 03m
$702
St. LouisQuito
STL - UIO
STLUIO
Lambert-St Louis
Tue 9/8
7:05 am-6:59 pm
1 stop11h 54m
Quito Mariscal Sucr
Mon 9/14
12:59 am-11:42 pm
1 stop22h 43m
$713
St. LouisQuito
STL - UIO
STLUIO
Lambert-St Louis
Sat 9/26
6:15 am-11:25 pm
1 stop17h 10m
Quito Mariscal Sucr
Fri 10/2
12:35 am-2:10 pm
1 stop13h 35m
$737
St. LouisQuito
STL - UIO
STLUIO
Lambert-St Louis
Fri 9/25
6:15 am-11:25 pm
1 stop17h 10m
Quito Mariscal Sucr
Mon 9/28
7:00 am-10:30 pm
1 stop15h 30m
$782
St. LouisQuito
STL - UIO
STLUIO
Lambert-St Louis
Thu 8/27
10:44 am-11:57 pm
2 stops13h 13m
Quito Mariscal Sucr
Thu 9/3
11:56 pm-1:02 pm
2 stops13h 06m
$783
St. LouisQuito
STL - UIO
STLUIO
Lambert-St Louis
Sun 8/9
6:14 am-11:25 pm
1 stop17h 11m
Quito Mariscal Sucr
Wed 8/12
12:35 am-10:10 am
1 stop9h 35m
$1,001
St. LouisBaltra
STL - GPS
STLGPS
Lambert-St Louis
Tue 10/6
11:10 am-12:20 pm
2 stops26h 10m
Baltra
Tue 10/13
1:55 pm-2:10 pm
3 stops23h 15m
$1,063
St. LouisBaltra
STL - GPS
STLGPS
Lambert-St Louis
Sun 8/2
1:22 pm-9:10 am
3 stops44h 48m
Baltra
Tue 8/4
12:35 pm-9:54 am
3 stops20h 19m
$2,274
Showing 1-10 of 12 resultsSorted 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-GYE
STL-UIO
STL-GPS
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-GYE
STL-UIO
STL-GPS
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 July 30, 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.
Boarding
8.1
Entertainment
7.8
Comfort
7.8
Food
7.2
Crew
8.5
Overall
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Boarding
8.1
Entertainment
7.8
Comfort
7.8
Food
7.2
Crew
8.5
Overall
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Boarding
8.1
Entertainment
7.8
Comfort
7.8
Food
7.2
Crew
8.5
Overall
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
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
See prices for flight routes from nearby airports that may be better suited for you.
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 July 30, 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 2,558,603 searches. Data last updated July 30, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$592 | Average$879 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$687 | Average$934 | FlexibilityNo cancel fee | On-timeN/A |