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St. Louis

$624+ Cheap flights from Quito (UIO) to St. Louis (STL)

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 3/5. Fares are subject to change and may not be available on all flights or dates of travel.
UIO — STL
Mar 16 — Mar 231
Mon 3/16
Mon 3/23
1 adult, Economy
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Cheap flight deals from Quito to St. Louis

Cheapest flights from Quito to St. Louis
Explore the most affordable flight options available from Quito to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 14, 2026.

This eDestinos deal was found by Cheapflights users on 2/11. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/56:45 pm
UIO
-
STL
2 stops29h 34m
Multiple Airlines
Sun 3/158:06 pm
STL
-
UIO
3 stops26h 54m
Multiple Airlines
Deal found 2/11$624
This eDestinos deal was found by Cheapflights users on 2/11. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/66:45 pm
UIO
-
STL
2 stops29h 34m
Multiple Airlines
Sun 3/158:06 pm
STL
-
UIO
3 stops26h 54m
Multiple Airlines
Deal found 2/11$628
This American Airlines deal was found by Cheapflights users on 2/14. 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.
Tue 3/3111:44 pm
UIO
-
STL
1 stop17h 56m
American Airlines
Wed 4/1511:06 am
STL
-
UIO
1 stop11h 18m
American Airlines
Deal found 2/14$697
This American Airlines deal was found by Cheapflights users on 2/14. 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.
Wed 4/16:30 am
UIO
-
STL
2 stops13h 46m
American Airlines
Sat 4/187:12 am
STL
-
UIO
2 stops12h 45m
American Airlines
Deal found 2/14$713
This American Airlines deal was found by Cheapflights users on 2/13. 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.
Tue 4/1411:40 pm
UIO
-
STL
1 stop10h 36m
American Airlines
Tue 5/55:24 am
STL
-
UIO
1 stop14h 33m
American Airlines
Deal found 2/13$718
This United Airlines deal was found by Cheapflights users on 2/10. 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 3/912:35 am
UIO
-
STL
1 stop8h 46m
United Airlines
Tue 3/176:00 am
STL
-
UIO
1 stop17h 30m
United Airlines
Deal found 2/10$721
This Delta deal was found by Cheapflights users on 2/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/3112:59 am
UIO
-
STL
1 stop16h 54m
Delta
Sat 4/186:00 am
STL
-
UIO
1 stop12h 59m
Delta
Deal found 2/14$773

Find flight deals from Quito to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Quito (UIO) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 14, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$624
(eDestinos)

Popular in

June

Cheapest in

December

Average price

$824
Provider with most accurate pricing for Quito Mariscal Sucr-Lambert-St Louis flight deals.
Search Deals
Provider most trusted by Cheapflights users for Quito Mariscal Sucr-Lambert-St Louis flights.
Search Deals
From Quito Mariscal Sucr to Lambert-St Louis
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($93 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($34 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Quito 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 February 14, 2026.
Use the filters below to find and compare flights from Quito to St. Louis that are best for you.

Fly from

Quito

Fly to

St. Louis

Route

Depart

Return

Price

QuitoSt. Louis

UIO - STL

UIOSTL

Quito Mariscal Sucr

Thu 3/5

6:45 pm-11:19 pm

2 stops29h 34m

Lambert-St Louis

Sun 3/15

7:47 am-8:35 pm

2 stops36h 48m

$639

QuitoSt. Louis

UIO - STL

UIOSTL

Quito Mariscal Sucr

Mon 4/13

12:35 am-9:25 am

1 stop8h 50m

Lambert-St Louis

Tue 5/5

6:00 am-11:25 pm

1 stop17h 25m

$697

QuitoSt. Louis

UIO - STL

UIOSTL

Quito Mariscal Sucr

Tue 3/31

11:44 pm-5:40 pm

1 stop17h 56m

Lambert-St Louis

Wed 4/15

11:06 am-10:24 pm

1 stop11h 18m

$697

QuitoSt. Louis

UIO - STL

UIOSTL

Quito Mariscal Sucr

Wed 4/1

6:30 am-8:16 pm

2 stops13h 46m

Lambert-St Louis

Sat 4/18

7:12 am-7:57 pm

2 stops12h 45m

$713

QuitoSt. Louis

UIO - STL

UIOSTL

Quito Mariscal Sucr

Tue 4/14

7:05 am-10:24 pm

1 stop15h 19m

Lambert-St Louis

Tue 5/5

11:06 am-7:57 pm

1 stop8h 51m

$718

QuitoSt. Louis

UIO - STL

UIOSTL

Quito Mariscal Sucr

Mon 3/9

12:35 am-9:21 am

1 stop8h 46m

Lambert-St Louis

Tue 3/17

6:00 am-11:30 pm

1 stop17h 30m

$721

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/12

  • Most accurate provider: When it comes to deals on Quito-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Quito-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Quito-St. Louis flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Quito-St. Louis flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Quito-St. Louis flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Quito to St. Louis

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

How much does it cost to fly round-trip from Quito to St. Louis?

Related info for your journey

Find useful and relevant information for your journey from Quito to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    A quick flight from Quito to St. Louis can take about 8h 50m. United Airlines provides one of the quickest options available for as low as $697. The distance between Quito and St. Louis is about 2790 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Quito 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
Swansea
Fairview Heights
Maryland Heights
Collinsville
Eureka
Glencoe
Chesterfield
Alton
Farmington
Festus

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