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St. Louis

$297+ Cheap flights from Quito (UIO) 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 1/27. Fares are subject to change and may not be available on all flights or dates of travel.
UIO — STL
Feb 20 — Feb 271
Fri 2/20
Fri 2/27
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 January 21, 2026.

This United Airlines deal was found by Cheapflights users on 1/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/307:25 am
UIO
-
STL
1 stop15h 03m
United Airlines
Thu 4/97:45 am
STL
-
UIO
2 stops15h 40m
United Airlines
Deal found 1/19$709
This American Airlines deal was found by Cheapflights users on 1/21. 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 4/147:05 am
UIO
-
STL
1 stop15h 19m
American Airlines
Tue 5/511:06 am
STL
-
UIO
1 stop8h 31m
American Airlines
Deal found 1/21$718
This United Airlines deal was found by Cheapflights users on 1/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/1512:35 am
UIO
-
STL
2 stops22h 21m
United Airlines
Sat 5/96:30 am
STL
-
UIO
2 stops16h 55m
United Airlines
Deal found 1/19$721
This United Airlines deal was found by Cheapflights users on 1/20. 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 2/191:35 am
UIO
-
STL
1 stop8h 48m
United Airlines
Mon 4/206:00 am
STL
-
UIO
1 stop17h 25m
United Airlines
Deal found 1/20$730
This United Airlines deal was found by Cheapflights users on 1/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/1712:35 am
UIO
-
STL
1 stop8h 50m
United Airlines
Thu 5/77:45 am
STL
-
UIO
2 stops39h 40m
United Airlines
Deal found 1/19$733
This Ovago deal was found by Cheapflights users on 1/19. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/1712:35 am
UIO
-
STL
1 stop8h 50m
Multiple Airlines
Sat 5/910:14 am
STL
-
UIO
1 stop18h 46m
Multiple Airlines
Deal found 1/19$738
This United Airlines deal was found by Cheapflights users on 1/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/1712:35 am
UIO
-
STL
1 stop8h 50m
United Airlines
Sun 5/106:00 am
STL
-
UIO
1 stop17h 25m
United Airlines
Deal found 1/19$742
This United Airlines deal was found by Cheapflights users on 1/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/2412:35 am
UIO
-
STL
2 stops21h 07m
United Airlines
Mon 4/137:45 am
STL
-
UIO
2 stops15h 40m
United Airlines
Deal found 1/19$747
This Delta deal was found by Cheapflights users on 1/19. 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 4/1812:59 am
UIO
-
STL
1 stop9h 35m
Delta
Wed 5/69:40 am
STL
-
UIO
1 stop9h 19m
Delta
Deal found 1/19$757
This United Airlines deal was found by Cheapflights users on 1/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/1612:35 am
UIO
-
STL
1 stop21h 52m
United Airlines
Sun 5/106:00 am
STL
-
UIO
1 stop17h 25m
United Airlines
Deal found 1/19$760

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 January 21, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
1 star

Round-trip from

$709
(United Airlines)

One-way from

$297
(Kiwi.com)

Popular in

June

Cheapest in

December

Average price

$867
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
One-way flight from Quito Mariscal Sucr to Lambert-St Louis
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($101 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 January 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 January 21, 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

Mon 4/20

7:25 am-10:28 pm

1 stop15h 03m

Lambert-St Louis

Wed 5/6

6:00 am-11:25 pm

1 stop17h 25m

$709

QuitoSt. Louis

UIO - STL

UIOSTL

Quito Mariscal Sucr

Mon 3/30

12:35 am-8:35 am

2 stops32h 00m

Lambert-St Louis

Tue 4/14

10:00 am-11:25 pm

2 stops13h 25m

$709

QuitoSt. Louis

UIO - STL

UIOSTL

Quito Mariscal Sucr

Mon 3/30

7:25 am-10:28 pm

1 stop15h 03m

Lambert-St Louis

Mon 4/13

7:45 am-11:25 pm

2 stops15h 40m

$709

QuitoSt. Louis

UIO - STL

UIOSTL

Quito Mariscal Sucr

Wed 4/15

12:35 am-9:25 am

1 stop8h 50m

Lambert-St Louis

Wed 5/6

7:45 am-11:25 pm

2 stops15h 40m

$709

QuitoSt. Louis

UIO - STL

UIOSTL

Quito Mariscal Sucr

Tue 4/14

12:35 am-10:28 pm

1 stop21h 53m

Lambert-St Louis

Tue 5/5

10:00 am-11:25 pm

2 stops13h 25m

$709

QuitoSt. Louis

UIO - STL

UIOSTL

Quito Mariscal Sucr

Mon 3/30

12:35 am-10:28 pm

1 stop21h 53m

Lambert-St Louis

Wed 4/8

7:45 am-11:25 pm

2 stops15h 40m

$709

QuitoSt. Louis

UIO - STL

UIOSTL

Quito Mariscal Sucr

Mon 3/30

7:25 am-10:28 pm

1 stop15h 03m

Lambert-St Louis

Thu 4/9

6:00 am-11:25 pm

1 stop17h 25m

$709

QuitoSt. Louis

UIO - STL

UIOSTL

Quito Mariscal Sucr

Wed 4/15

12:35 am-10:56 pm

2 stops22h 21m

Lambert-St Louis

Sat 5/9

6:30 am-11:25 pm

2 stops16h 55m

$721

QuitoSt. Louis

UIO - STL

UIOSTL

Quito Mariscal Sucr

Mon 4/20

7:25 am-10:28 pm

1 stop15h 03m

Lambert-St Louis

Sun 5/10

6:00 am-5:00 am

1 stop23h 00m

$721

QuitoSt. Louis

UIO - STL

UIOSTL

Quito Mariscal Sucr

Mon 4/20

12:35 am-9:08 pm

2 stops20h 33m

Lambert-St Louis

Sat 5/9

4:44 pm-5:00 am

1 stop12h 16m

$721

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

Showing 1-10 of 12 results
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  • 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.

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 15h 03m. United Airlines provides one of the quickest options available for as low as $709. The distance between Quito and St. Louis is about 2790 mi.

  • 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

Browse thousands of different options on Cheapflights for your next trip

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