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Quito

$380+ Cheap flights from St. Louis (STL) to Quito (UIO)

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 6/29. Fares are subject to change and may not be available on all flights or dates of travel.
STL — UIO
Jun 28 — Jul 51
Sun 6/28
Sun 7/5
1 adult, Economy
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Cheap flight deals from St. Louis to Quito

Cheapest flights from St. Louis to Quito
Explore the most affordable flight options available from St. Louis to Quito. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 29, 2026.

This United Airlines deal was found by Cheapflights users on 5/24. 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 7/87:05 pm
STL
-
UIO
2 stops28h 20m
United Airlines
Tue 7/1412:35 am
UIO
-
STL
2 stops32h 04m
United Airlines
Deal found 5/24$709
This United Airlines deal was found by Cheapflights users on 5/24. 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 7/85:33 pm
STL
-
UIO
2 stops29h 52m
United Airlines
Fri 7/177:25 am
UIO
-
STL
2 stops27h 09m
United Airlines
Deal found 5/24$712
This United Airlines deal was found by Cheapflights users on 5/25. 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.
Fri 8/216:15 am
STL
-
UIO
1 stop17h 10m
United Airlines
Sat 8/2912:35 am
UIO
-
STL
1 stop9h 35m
United Airlines
Deal found 5/25$727
This American Airlines deal was found by Cheapflights users on 5/25. 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.
Wed 12/97:00 am
STL
-
UIO
2 stops15h 02m
American Airlines
Tue 12/158:20 am
UIO
-
STL
1 stop16h 39m
American Airlines
Deal found 5/25$736
This Delta deal was found by Cheapflights users on 5/27. 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.
Sat 11/711:51 am
STL
-
UIO
1 stop8h 34m
Delta
Fri 11/1312:55 am
UIO
-
STL
1 stop13h 01m
Delta
Deal found 5/27$737
This American Airlines deal was found by Cheapflights users on 5/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/79:47 am
STL
-
UIO
2 stops12h 15m
American Airlines
Sat 11/148:27 am
UIO
-
STL
1 stop15h 05m
American Airlines
Deal found 5/27$742
This American Airlines deal was found by Cheapflights users on 5/24. 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 7/95:18 am
STL
-
UIO
1 stop16h 54m
American Airlines
Fri 7/176:00 am
UIO
-
STL
1 stop16h 54m
American Airlines
Deal found 5/24$746
This KAYAK deal was found by Cheapflights users on 5/26. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/711:51 am
STL
-
UIO
1 stop8h 34m
LATAM Airlines
Fri 11/1312:55 am
UIO
-
STL
1 stop18h 06m
LATAM Airlines
Deal found 5/26$757

Find flight deals from St. Louis to Quito

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Quito (UIO). 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 May 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$709
(United Airlines)

One-way from

$380
(Kiwi.com)

Popular in

January

Cheapest in

May

Average price

$682
Provider with most accurate pricing for Lambert-St Louis-Quito Mariscal Sucr flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-Quito Mariscal Sucr flights.
Search Deals
From Lambert-St Louis to Quito Mariscal Sucr
Search Deals
One-way flight from Lambert-St Louis to Quito Mariscal Sucr
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($61 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($30 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Quito 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 May 29, 2026.
Use the filters below to find and compare flights from St. Louis to Quito that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Wed 7/8

7:05 pm-11:25 pm

2 stops28h 20m

Quito Mariscal Sucr

Tue 7/14

12:35 am-8:39 am

2 stops32h 04m

$709

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Wed 7/8

5:33 pm-11:25 pm

2 stops29h 52m

Quito Mariscal Sucr

Fri 7/17

7:25 am-10:34 am

2 stops27h 09m

$712

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Fri 8/21

11:15 am-5:00 am

1 stop17h 45m

Quito Mariscal Sucr

Sat 8/29

12:35 am-3:38 pm

2 stops15h 03m

$732
Quickest round-trip

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Sat 11/7

11:51 am-9:25 pm

1 stop8h 34m

Quito Mariscal Sucr

Fri 11/13

12:55 am-12:56 pm

1 stop13h 01m

$737

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Sat 11/7

9:47 am-11:02 pm

2 stops12h 15m

Quito Mariscal Sucr

Sat 11/14

8:27 am-10:32 pm

1 stop15h 05m

$742

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Tue 10/27

6:15 am-11:30 pm

1 stop17h 15m

Quito Mariscal Sucr

Thu 10/29

12:35 am-4:35 pm

1 stop16h 00m

$798
Cheapest one-way

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Mon 6/29

5:06 pm-11:33 pm

3 stops30h 27m

$392
Quickest one-way

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Mon 6/29

2:57 pm-11:25 pm

1 stop8h 28m

$427

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Mon 6/29

6:14 am-8:43 pm

2 stops14h 29m

$443

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/25

Sorted by cheapest first

Compare providers for flights from St. Louis to Quito

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Quito in May.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on St. Louis-Quito flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Quito flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Quito flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on St. Louis-Quito 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 St. Louis-Quito 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 St. Louis to Quito

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

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

Reviews of airlines servicing Quito

Get insights into the airlines that provide service to Quito. 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 Quito. Reviews last updated May 29, 2026.
Read through reviews of airlines operating flights from St. Louis to Quito, such as Delta and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,419 reviews

Boarding

8.1

Food

7.2

Overall

7.9

Comfort

7.8

Crew

8.5

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
Delta
7.9
Good
8,419 reviews
Delta
7.9
Good
8,419 reviews

Boarding

8.1

Food

7.2

Overall

7.9

Comfort

7.8

Crew

8.5

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
American Airlines
7.1
Good
11,643 reviews
Delta
7.9
Good
8,419 reviews

Boarding

8.1

Food

7.2

Overall

7.9

Comfort

7.8

Crew

8.5

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Quito. 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 St. Louis to Quito?

    Airlines like United Airlines fly from St. Louis to Quito in about 28h 20m. The time it takes to get you to your destination can typically vary by up to . St. Louis and Quito are separated by a distance of 2790 mi.

  • What are the cheapest airlines flying from St. Louis to Quito round-trip?

    Currently priced at $592, American Airlines will fly you from St. Louis to Quito and back. In addition to American Airlines, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on Delta for as low as $661. American Airlines is priced at 32% lower than the current average price of a flight leaving 3 months from now.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from St. Louis to Quito 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

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Alternative routes for St. Louis to Quito

See prices for flight routes from nearby airports that may be better suited for you.
Kansas City to Guayaquil flights
St. Louis to Guayaquil flights
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Top 2 airlines flying from St. Louis to Quito

Discover the top 2 airlines that operate flights from St. Louis to Quito. 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 May 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$592Average$879FlexibilityNo cancel feeOn-time71%
DeltaCheapest$661Average$785FlexibilityNo cancel feeOn-timeN/A

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