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St. Louis

$538+ 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 6/19. Fares are subject to change and may not be available on all flights or dates of travel.
UIO — STL
Mar 22 — Mar 291
Sun 3/22
Sun 3/29
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 20, 2026.

This eDestinos deal was found by Cheapflights users on 2/20. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/56:00 am
UIO
-
STL
3 stops26h 02m
Multiple Airlines
Sun 3/154:51 pm
STL
-
UIO
2 stops30h 09m
Multiple Airlines
Deal found 2/20$688
This American Airlines deal was found by Cheapflights users on 2/17. 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 3/316:30 am
UIO
-
STL
1 stop17h 28m
American Airlines
Wed 4/1511:06 am
STL
-
UIO
1 stop11h 18m
American Airlines
Deal found 2/17$697
This United Airlines deal was found by Cheapflights users on 2/17. 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 5/1312:35 am
UIO
-
STL
2 stops34h 13m
United Airlines
Sat 8/159:23 am
STL
-
UIO
2 stops19h 37m
United Airlines
Deal found 2/17$699
This American Airlines deal was found by Cheapflights users on 2/17. 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 4/111:44 pm
UIO
-
STL
1 stop17h 56m
American Airlines
Sat 4/185:24 am
STL
-
UIO
1 stop17h 00m
American Airlines
Deal found 2/17$708
This American Airlines deal was found by Cheapflights users on 2/17. 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.
Fri 4/36:30 am
UIO
-
STL
1 stop17h 28m
American Airlines
Fri 4/105:24 am
STL
-
UIO
1 stop17h 00m
American Airlines
Deal found 2/17$719
This United Airlines deal was found by Cheapflights users on 2/20. 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.
Mon 4/1312:35 am
UIO
-
STL
1 stop8h 50m
United Airlines
Tue 5/56:00 am
STL
-
UIO
1 stop17h 25m
United Airlines
Deal found 2/20$730
This United Airlines deal was found by Cheapflights users on 2/18. 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.
Tue 9/87:25 am
UIO
-
STL
1 stop30h 54m
United Airlines
Tue 9/226:15 am
STL
-
UIO
1 stop17h 10m
United Airlines
Deal found 2/18$745
This Delta deal was found by Cheapflights users on 2/17. 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 5/1312:59 am
UIO
-
STL
1 stop23h 00m
Delta
Sat 8/155:30 pm
STL
-
UIO
1 stop25h 29m
Delta
Deal found 2/17$748

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 20, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$688
(eDestinos)

One-way from

$538
(Kiwi.com)

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
One-way flight from Quito Mariscal Sucr to Lambert-St Louis
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($92 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($33 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 20, 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 4/13

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

6:30 am-11:58 pm

1 stop17h 28m

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 5/13

12:35 am-10:48 am

2 stops34h 13m

Lambert-St Louis

Sat 8/15

9:23 am-5:00 am

2 stops19h 37m

$699

QuitoSt. Louis

UIO - STL

UIOSTL

Quito Mariscal Sucr

Wed 5/13

12:35 am-10:48 am

2 stops34h 13m

Lambert-St Louis

Fri 8/14

6:00 pm-5:00 am

1 stop11h 00m

$699

QuitoSt. Louis

UIO - STL

UIOSTL

Quito Mariscal Sucr

Tue 4/14

11:40 pm-12:48 pm

2 stops13h 08m

Lambert-St Louis

Tue 5/5

9:34 am-10:24 pm

2 stops12h 50m

$701

QuitoSt. Louis

UIO - STL

UIOSTL

Quito Mariscal Sucr

Wed 4/1

11:44 pm-5:40 pm

1 stop17h 56m

Lambert-St Louis

Sat 4/18

5:24 am-10:24 pm

1 stop17h 00m

$708

QuitoSt. Louis

UIO - STL

UIOSTL

Quito Mariscal Sucr

Thu 5/14

11:40 pm-10:16 am

1 stop10h 36m

Lambert-St Louis

Fri 8/14

11:48 am-11:55 pm

1 stop12h 07m

$708

QuitoSt. Louis

UIO - STL

UIOSTL

Quito Mariscal Sucr

Wed 5/13

12:59 am-11:59 pm

1 stop23h 00m

Lambert-St Louis

Sat 8/15

5:30 pm-6:59 pm

1 stop25h 29m

$748

QuitoSt. Louis

UIO - STL

UIOSTL

Quito Mariscal Sucr

Fri 6/19

4:05 am-5:13 pm

3 stops37h 08m

$538

QuitoSt. Louis

UIO - STL

UIOSTL

Quito Mariscal Sucr

Sat 6/20

4:05 am-5:13 pm

3 stops37h 08m

$574

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Showing 1-10 of 11 results
1
2
  • 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.

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. 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 St. Louis. Reviews last updated February 20, 2026.
Get a feel of what it's like to fly with Delta from Quito to St. Louis by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,215 reviews

Crew

8.5

Comfort

7.9

Food

7.2

Boarding

8.1

Overall

7.9

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,215 reviews
Delta
7.9
Good
8,215 reviews

Crew

8.5

Comfort

7.9

Food

7.2

Boarding

8.1

Overall

7.9

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

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.

  • What is the cheapest airline to fly from Quito to St. Louis round-trip?

    According to our current data, Delta ($755), offers the cheapest pricing from Quito to St. Louis. Delta is currently priced 4% below the average price you’ll pay for this route.

  • 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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Alternative routes for Quito to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Quito to St. Louis

Discover the top airline that operate flights from Quito to St. Louis. 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 February 20, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$755Average$779FlexibilityNo cancel feeOn-timeN/A

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