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Cheap flights from St. Louis to Quito from $597

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Quito departing on 1/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

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LATAM Airlines Logo
1:00 pm - 9:35 pmSTL-UIO
7h 35m1 stop
LATAM Airlines Logo
7:00 pm - 11:06 amUIO-STL
17h 06m2 stops
$597LATAM Airlines
Find Deal
mié., ene. 21 - mié., feb. 4
Multiple Airlines Logo
8:30 am - 1:20 amSTL-UIO
15h 50m2 stops
Multiple Airlines Logo
4:00 am - 3:52 pmUIO-STL
12h 52m2 stops
$604Multiple Airlines
Find Deal
mié., ene. 21 - mar., feb. 3
LATAM Airlines Logo
6:00 am - 8:00 pmSTL-UIO
13h 00m1 stop
LATAM Airlines Logo
7:00 pm - 10:45 amUIO-STL
16h 45m2 stops
$608LATAM Airlines
Find Deal
mié., dic. 3 - mié., dic. 10
United Airlines Logo
6:00 am - 12:30 amSTL-UIO
17h 30m1 stop
United Airlines Logo
1:35 am - 3:52 pmUIO-STL
15h 17m1 stop
$615United Airlines
Find Deal
mié., ene. 21 - mar., feb. 3
Delta Logo
11:40 am - 5:17 amSTL-UIO
16h 37m2 stops
Delta Logo
7:00 pm - 1:16 pmUIO-STL
19h 16m2 stops
$619Delta
Find Deal
mié., dic. 3 - mié., dic. 10
LATAM Airlines Logo
9:30 am - 8:00 pmSTL-UIO
9h 30m1 stop
LATAM Airlines Logo
11:45 pm - 8:24 amUIO-STL
9h 39m1 stop
$625LATAM Airlines
Find Deal
jue., dic. 4 - sáb., dic. 13
United Airlines Logo
6:15 am - 12:30 amSTL-UIO
17h 15m1 stop
United Airlines Logo
1:35 am - 2:25 pmUIO-STL
13h 50m2 stops
$629United Airlines
Find Deal
jue., dic. 4 - vie., dic. 12
American Airlines Logo
5:10 am - 7:45 pmSTL-UIO
13h 35m1 stop
American Airlines Logo
12:55 am - 4:06 pmUIO-STL
16h 11m1 stop
$669American Airlines
Find Deal
mié., dic. 3 - mar., dic. 9
American Airlines Logo
5:15 am - 7:45 pmSTL-UIO
13h 30m2 stops
American Airlines Logo
12:55 am - 12:41 pmUIO-STL
12h 46m2 stops
$683American Airlines
Find Deal
jue., dic. 4 - vie., dic. 12
Delta Logo
6:00 am - 8:00 pmSTL-UIO
14h 00m1 stop
Delta Logo
11:30 pm - 9:04 amUIO-STL
9h 34m1 stop
$746Delta
Find Deal
lun., abr. 6 - mié., abr. 8

LATAM Airlines flights from St. Louis to Quito

Our best LATAM Airlines deals on St. Louis to Quito flight tickets
LATAM Airlines
Jan 21
STL1:00 pmLambert-St Louis
7h 35m
1 stop
UIO9:35 pmQuito Mariscal Sucr
Feb 4
UIO7:00 pmQuito Mariscal Sucr
17h 06m
2 stops
STL11:06 amLambert-St Louis
$597
Find similar
LATAM Airlines
Dec 3
STL6:00 amLambert-St Louis
13h 00m
1 stop
UIO8:00 pmQuito Mariscal Sucr
Dec 10
UIO7:00 pmQuito Mariscal Sucr
16h 45m
2 stops
STL10:45 amLambert-St Louis
$608
Find similar
LATAM Airlines
Dec 4
STL9:30 amLambert-St Louis
9h 30m
1 stop
UIO8:00 pmQuito Mariscal Sucr
Dec 13
UIO11:45 pmQuito Mariscal Sucr
9h 39m
1 stop
STL8:24 amLambert-St Louis
$625
Find similar

United Airlines flights from St. Louis to Quito

Our best United Airlines deals on St. Louis to Quito flight tickets
United Airlines
Jan 21
STL6:00 amLambert-St Louis
17h 30m
1 stop
UIO12:30 amQuito Mariscal Sucr
Feb 3
UIO1:35 amQuito Mariscal Sucr
15h 17m
1 stop
STL3:52 pmLambert-St Louis
$615
Find similar
United Airlines
Dec 4
STL6:15 amLambert-St Louis
17h 15m
1 stop
UIO12:30 amQuito Mariscal Sucr
Dec 12
UIO1:35 amQuito Mariscal Sucr
13h 50m
2 stops
STL2:25 pmLambert-St Louis
$629
Find similar
United Airlines
Dec 4
STL6:15 amLambert-St Louis
22h 55m
1 stop
UIO6:10 amQuito Mariscal Sucr
Dec 12
UIO1:35 amQuito Mariscal Sucr
15h 29m
1 stop
STL4:04 pmLambert-St Louis
$689
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated noviembre 6, 2025.
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

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

mié. 1/21

1:00 pm-9:35 pm

1 stop7h 35m

Quito Mariscal Sucr

mié. 2/4

7:00 pm-11:06 am

2 stops17h 06m

$597

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

mié. 1/21

8:30 am-1:20 am

2 stops15h 50m

Quito Mariscal Sucr

mar. 2/3

4:00 am-3:52 pm

2 stops12h 52m

$604

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

mié. 12/3

6:00 am-8:00 pm

1 stop13h 00m

Quito Mariscal Sucr

mié. 12/10

7:00 pm-10:45 am

2 stops16h 45m

$608

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

mié. 1/21

6:00 am-12:30 am

1 stop17h 30m

Quito Mariscal Sucr

mar. 2/3

1:35 am-3:52 pm

1 stop15h 17m

$615

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

mié. 12/3

11:40 am-5:17 am

2 stops16h 37m

Quito Mariscal Sucr

mié. 12/10

7:00 pm-1:16 pm

2 stops19h 16m

$619

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

jue. 12/4

9:30 am-8:00 pm

1 stop9h 30m

Quito Mariscal Sucr

sáb. 12/13

11:45 pm-8:24 am

1 stop9h 39m

$625

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

jue. 12/4

6:15 am-12:30 am

1 stop17h 15m

Quito Mariscal Sucr

vie. 12/12

1:35 am-2:25 pm

2 stops13h 50m

$629

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

mié. 12/3

5:10 am-7:45 pm

1 stop13h 35m

Quito Mariscal Sucr

mar. 12/9

12:55 am-4:06 pm

1 stop16h 11m

$669

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

jue. 12/4

5:15 am-7:45 pm

2 stops13h 30m

Quito Mariscal Sucr

vie. 12/12

12:55 am-12:41 pm

2 stops12h 46m

$683

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

lun. 4/6

6:00 am-8:00 pm

1 stop14h 00m

Quito Mariscal Sucr

mié. 4/8

11:30 pm-9:04 am

1 stop9h 34m

$746

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first
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See travel insights to Quito from

How to get the cheapest flight ticket from St. Louis to Quito

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between St. Louis and Quito?

What is the cheapest day to depart on your flight to Quito?

The cheapest day to depart from St. Louis to Quito is on a Tuesday. Travelers who choose to depart for Quito on a Tuesday will often find tickets for as low as $549. Be sure to avoid booking your departure on a Friday as prices are generally higher than usual. According to our data, the average ticket price to Quito on Friday is $862.

What is the cheapest time of day to depart on your flight to Quito?

Our most recent data shows that the best time of day to fly to Quito is in the afternoon. Flights from St. Louis to Quito during this time can be as low as $656. Try not to purchase tickets in the morning because they tend to be around $689. Of course, these prices can vary depending on the time of year and what airport you fly to.

When to book flights from St. Louis to Quito

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Quito according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap St. Louis to Quito (STL to UIO) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Quito

Direct flights

None
There are no direct flights from St. Louis to Quito. There are no popular flight routes from St. Louis to Quito.
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  • How far is Lambert-St Louis to Quito Mariscal Sucr by plane?

    There are 2783.2 mi between Lambert-St Louis and Quito Mariscal Sucr. Typically, this will take 7h 35m by plane in normal conditions.

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Quito Mariscal Sucr Airport?

    Prices for flights from Lambert-St Louis Airport to Quito Mariscal Sucr Airport refresh daily.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to Quito Mariscal Sucr Airport?

  • How old do you have to be to fly from Lambert-St Louis Airport to Quito Mariscal Sucr Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Lambert-St Louis Airport to Quito Mariscal Sucr Airport.

  • What documentation or ID do you need to fly to Quito Mariscal Sucr Airport?

    The required travel and health documents for your Quito Mariscal Sucr Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Quito Mariscal Sucr Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from St. Louis to Quito?

Best airlines flying from St. Louis to Quito

Compare and see reviews for airlines that fly from St. Louis to Quito with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $625Free CancellationRating
7.2
11,040 reviews
Search American Airlines flights
United AirlinesPriceFrom $634Free CancellationRating
7.4
9,007 reviews
Search United Airlines flights
DeltaPriceFrom $661Free CancellationRating
7.9
8,001 reviews
Search Delta flights
LATAM AirlinesPriceFrom $664Free CancellationRating
7.5
1,872 reviews
Search LATAM Airlines flights

Traveling to a place near Quito?

Book flights to Quito if you plan to visit one of these locations
Mindo
Ibarra
Otavalo

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Why should I use momondo to find a flight deal from St. Louis to Quito?

Finding the right flight to Quito from St. Louis is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Quito quick and easy, saving you time and money.

Can I find flights from St. Louis to Quito with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Quito from St. Louis with this policy.

How can momondo help me find flights from St. Louis to Quito?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from St. Louis to Quito.

I’m not ready to book a flight from St. Louis to Quito right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Quito, momondo offers a useful price alert feature which will track prices for flights to Quito from St. Louis and alert you when they change.

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