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Cheap flights from St. Louis to Quito from $585

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Quito departing on 2/25. 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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0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
LATAM Airlines Logo
10:12 am - 6:59 pm
STL
-
UIO
8h 47m
1 stop
LATAM Airlines Logo
6:50 pm - 10:34 am
UIO
-
STL
15h 44m
2 stops
$629LATAM Airlines
Wed, Apr 1 - Tue, May 5
American Airlines Logo
11:06 am - 10:24 pm
STL
-
UIO
11h 18m
1 stop
American Airlines Logo
11:59 pm - 10:34 am
UIO
-
STL
10h 35m
1 stop
$636American Airlines
Thu, May 14 - Tue, May 26
LATAM Airlines Logo
6:00 am - 6:59 pm
STL
-
UIO
12h 59m
1 stop
LATAM Airlines Logo
6:50 pm - 12:20 pm
UIO
-
STL
17h 30m
2 stops
$639LATAM Airlines
Sun, May 3 - Wed, May 13
American Airlines Logo
7:05 am - 10:24 pm
STL
-
UIO
15h 19m
2 stops
American Airlines Logo
11:59 pm - 5:20 pm
UIO
-
STL
17h 21m
2 stops
$640American Airlines
Thu, May 14 - Tue, May 26
Delta Logo
6:50 pm - 6:59 pm
STL
-
UIO
24h 09m
1 stop
Delta Logo
12:59 am - 5:46 pm
UIO
-
STL
16h 47m
1 stop
$641Delta
Sun, May 3 - Tue, May 12
Delta Logo
12:04 pm - 4:43 am
STL
-
UIO
16h 39m
2 stops
Delta Logo
6:50 pm - 10:34 am
UIO
-
STL
15h 44m
2 stops
$650Delta
Thu, Apr 2 - Tue, May 5
LATAM Airlines Logo
6:00 am - 9:35 pm
STL
-
UIO
14h 35m
1 stop
LATAM Airlines Logo
11:45 pm - 11:09 am
UIO
-
STL
11h 24m
1 stop
$737LATAM Airlines
Wed, Mar 4 - Sun, Mar 8
United Airlines Logo
7:40 am - 11:30 pm
STL
-
UIO
15h 50m
2 stops
United Airlines Logo
12:35 am - 9:42 pm
UIO
-
STL
21h 07m
2 stops
$740United Airlines
Wed, Mar 18 - Tue, Mar 24
Delta Logo
10:14 am - 5:17 am
STL
-
UIO
18h 03m
2 stops
Delta Logo
7:00 pm - 3:13 pm
UIO
-
STL
20h 13m
2 stops
$747Delta
Wed, Mar 4 - Sun, Mar 8
LATAM Airlines Logo
9:59 am - 6:59 pm
STL
-
UIO
9h 00m
1 stop
LATAM Airlines Logo
6:50 pm - 9:36 am
UIO
-
STL
14h 46m
2 stops
$756LATAM Airlines
Wed, May 6 - Sat, May 9

LATAM Airlines flights from St. Louis to Quito

Our best LATAM Airlines deals on St. Louis to Quito flight tickets
LATAM Airlines
Apr 1
STL10:12 amLambert-St Louis
8h 47m
1 stop
UIO6:59 pmQuito Mariscal Sucr
May 5
UIO6:50 pmQuito Mariscal Sucr
15h 44m
2 stops
STL10:34 amLambert-St Louis
$629
LATAM Airlines
May 3
STL6:00 amLambert-St Louis
12h 59m
1 stop
UIO6:59 pmQuito Mariscal Sucr
May 13
UIO6:50 pmQuito Mariscal Sucr
17h 30m
2 stops
STL12:20 pmLambert-St Louis
$639
LATAM Airlines
Mar 4
STL6:00 amLambert-St Louis
14h 35m
1 stop
UIO9:35 pmQuito Mariscal Sucr
Mar 8
UIO11:45 pmQuito Mariscal Sucr
11h 24m
1 stop
STL11:09 amLambert-St Louis
$737

Delta flights from St. Louis to Quito

Our best Delta deals on St. Louis to Quito flight tickets
Delta
May 3
STL6:50 pmLambert-St Louis
24h 09m
1 stop
UIO6:59 pmQuito Mariscal Sucr
May 12
UIO12:59 amQuito Mariscal Sucr
16h 47m
1 stop
STL5:46 pmLambert-St Louis
$641
Delta
Apr 2
STL12:04 pmLambert-St Louis
16h 39m
2 stops
UIO4:43 amQuito Mariscal Sucr
May 5
UIO6:50 pmQuito Mariscal Sucr
15h 44m
2 stops
STL10:34 amLambert-St Louis
$650
Delta
Mar 4
STL10:14 amLambert-St Louis
18h 03m
2 stops
UIO5:17 amQuito Mariscal Sucr
Mar 8
UIO7:00 pmQuito Mariscal Sucr
20h 13m
2 stops
STL3:13 pmLambert-St Louis
$747

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 February 4, 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

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Wed 4/1

10:12 am-6:59 pm

1 stop8h 47m

Quito Mariscal Sucr

Tue 5/5

6:50 pm-10:34 am

2 stops15h 44m

$629

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Thu 5/14

11:06 am-10:24 pm

1 stop11h 18m

Quito Mariscal Sucr

Tue 5/26

11:59 pm-10:34 am

1 stop10h 35m

$636

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Sun 5/3

6:00 am-6:59 pm

1 stop12h 59m

Quito Mariscal Sucr

Wed 5/13

6:50 pm-12:20 pm

2 stops17h 30m

$639

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Thu 5/14

7:05 am-10:24 pm

2 stops15h 19m

Quito Mariscal Sucr

Tue 5/26

11:59 pm-5:20 pm

2 stops17h 21m

$640

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Sun 5/3

6:50 pm-6:59 pm

1 stop24h 09m

Quito Mariscal Sucr

Tue 5/12

12:59 am-5:46 pm

1 stop16h 47m

$641

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Thu 4/2

12:04 pm-4:43 am

2 stops16h 39m

Quito Mariscal Sucr

Tue 5/5

6:50 pm-10:34 am

2 stops15h 44m

$650

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Wed 3/4

6:00 am-9:35 pm

1 stop14h 35m

Quito Mariscal Sucr

Sun 3/8

11:45 pm-11:09 am

1 stop11h 24m

$737

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Wed 3/18

7:40 am-11:30 pm

2 stops15h 50m

Quito Mariscal Sucr

Tue 3/24

12:35 am-9:42 pm

2 stops21h 07m

$740

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Wed 3/4

10:14 am-5:17 am

2 stops18h 03m

Quito Mariscal Sucr

Sun 3/8

7:00 pm-3:13 pm

2 stops20h 13m

$747

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Wed 5/6

9:59 am-6:59 pm

1 stop9h 00m

Quito Mariscal Sucr

Sat 5/9

6:50 pm-9:36 am

2 stops14h 46m

$756

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 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?

Can stopping save me money on St. Louis to Quito flights?

You could potentially save up to 42% on your flight if you consider stops on a St. Louis to Quito flight.

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

Fastest flight time

9h 59m

Direct flights

None
The fastest flight from St. Louis to Quito takes 9h 59m
There are no direct flights from St. Louis to Quito. There are no popular flight routes from St. Louis to Quito.
Search flight deals

  • 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 9h 59m 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 $592Free CancellationRating
7.2
11,223 reviews
Search American Airlines flights
United AirlinesPriceFrom $634Free CancellationRating
7.4
9,236 reviews
Search United Airlines flights
DeltaPriceFrom $661Free CancellationRating
7.9
8,146 reviews
Search Delta flights
LATAM AirlinesPriceFrom $664Free CancellationRating
7.5
1,918 reviews
Search LATAM Airlines flights

Traveling to a place near Quito?

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

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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.

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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.

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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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