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Cheap flights from St. Louis to Quito from $369

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 6/29. 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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Find the cheapest flights from St. Louis to Quito

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
7:05 pm - 11:25 pm
STL
-
UIO
28h 20m
2 stops
United Airlines Logo
12:35 am - 8:39 am
UIO
-
STL
32h 04m
2 stops
$709United Airlines
Wed, Jul 8 - Tue, Jul 14
United Airlines Logo
5:33 pm - 11:25 pm
STL
-
UIO
29h 52m
2 stops
United Airlines Logo
7:25 am - 10:34 am
UIO
-
STL
27h 09m
2 stops
$712United Airlines
Wed, Jul 8 - Fri, Jul 17
Delta Logo
11:51 am - 9:25 pm
STL
-
UIO
8h 34m
1 stop
Delta Logo
12:55 am - 6:01 pm
UIO
-
STL
18h 06m
1 stop
$727Delta
Sat, Nov 7 - Fri, Nov 13
American Airlines Logo
9:47 am - 11:02 pm
STL
-
UIO
12h 15m
2 stops
American Airlines Logo
12:55 am - 1:17 pm
UIO
-
STL
13h 22m
2 stops
$732American Airlines
Sat, Nov 7 - Fri, Nov 13
American Airlines Logo
5:18 am - 10:12 pm
STL
-
UIO
16h 54m
1 stop
American Airlines Logo
6:00 am - 10:54 pm
UIO
-
STL
16h 54m
1 stop
$746American Airlines
Thu, Jul 9 - Fri, Jul 17
American Airlines Logo
5:18 am - 11:58 pm
STL
-
UIO
18h 40m
1 stop
American Airlines Logo
6:00 am - 8:55 pm
UIO
-
STL
14h 55m
2 stops
$751American Airlines
Thu, Jul 9 - Fri, Jul 17
American Airlines Logo
5:21 am - 11:02 pm
STL
-
UIO
16h 41m
1 stop
American Airlines Logo
8:27 am - 10:32 pm
UIO
-
STL
15h 05m
1 stop
$762American Airlines
Sat, Nov 7 - Sat, Nov 14
American Airlines Logo
9:24 am - 11:58 pm
STL
-
UIO
14h 34m
2 stops
American Airlines Logo
11:59 pm - 10:24 am
UIO
-
STL
10h 25m
1 stop
$763American Airlines
Thu, Jul 16 - Wed, Jul 22
United Airlines Logo
11:25 am - 5:00 am
STL
-
UIO
17h 35m
2 stops
United Airlines Logo
7:25 am - 8:39 am
UIO
-
STL
25h 14m
2 stops
$767United Airlines
Mon, Jul 6 - Mon, Jul 13
United Airlines Logo
8:50 am - 12:30 am
STL
-
UIO
14h 40m
1 stop
United Airlines Logo
1:35 am - 9:42 am
UIO
-
STL
9h 07m
1 stop
$784United Airlines
Fri, Nov 6 - Fri, Nov 13

United Airlines flights from St. Louis to Quito

Our best United Airlines deals on St. Louis to Quito flight tickets
United Airlines
Jul 8
STL7:05 pmLambert-St Louis
28h 20m
2 stops
UIO11:25 pmQuito Mariscal Sucr
Jul 14
UIO12:35 amQuito Mariscal Sucr
32h 04m
2 stops
STL8:39 amLambert-St Louis
$709
United Airlines
Jul 8
STL7:05 pmLambert-St Louis
28h 20m
2 stops
UIO11:25 pmQuito Mariscal Sucr
Jul 17
UIO7:25 amQuito Mariscal Sucr
15h 20m
1 stop
STL10:45 pmLambert-St Louis
$712
United Airlines
Jul 6
STL11:25 amLambert-St Louis
17h 35m
2 stops
UIO5:00 amQuito Mariscal Sucr
Jul 13
UIO7:25 amQuito Mariscal Sucr
25h 14m
2 stops
STL8:39 amLambert-St Louis
$767

Delta flights from St. Louis to Quito

Our best Delta deals on St. Louis to Quito flight tickets
Delta
Nov 7
STL11:51 amLambert-St Louis
8h 34m
1 stop
UIO9:25 pmQuito Mariscal Sucr
Nov 13
UIO12:55 amQuito Mariscal Sucr
18h 06m
1 stop
STL6:01 pmLambert-St Louis
$727
Delta
Jun 7
STL9:21 amLambert-St Louis
9h 38m
1 stop
UIO6:59 pmQuito Mariscal Sucr
Jun 13
UIO12:59 amQuito Mariscal Sucr
8h 47m
1 stop
STL9:46 amLambert-St Louis
$963

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 May 25, 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

Sat 11/7

11:51 am-9:25 pm

1 stop8h 34m

Quito Mariscal Sucr

Fri 11/13

12:55 am-6:01 pm

1 stop18h 06m

$727

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Sat 11/7

9:47 am-11:02 pm

2 stops12h 15m

Quito Mariscal Sucr

Fri 11/13

12:55 am-1:17 pm

2 stops13h 22m

$732

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Thu 7/9

5:18 am-10:12 pm

1 stop16h 54m

Quito Mariscal Sucr

Fri 7/17

6:00 am-10:54 pm

1 stop16h 54m

$746

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Thu 7/9

5:18 am-11:58 pm

1 stop18h 40m

Quito Mariscal Sucr

Fri 7/17

6:00 am-8:55 pm

2 stops14h 55m

$751

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Sat 11/7

5:21 am-11:02 pm

1 stop16h 41m

Quito Mariscal Sucr

Sat 11/14

8:27 am-10:32 pm

1 stop15h 05m

$762

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Thu 7/16

9:24 am-11:58 pm

2 stops14h 34m

Quito Mariscal Sucr

Wed 7/22

11:59 pm-10:24 am

1 stop10h 25m

$763

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Mon 7/6

11:25 am-5:00 am

2 stops17h 35m

Quito Mariscal Sucr

Mon 7/13

7:25 am-8:39 am

2 stops25h 14m

$767
Quickest round-trip

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Fri 11/6

8:50 am-12:30 am

1 stop14h 40m

Quito Mariscal Sucr

Fri 11/13

1:35 am-9:42 am

1 stop9h 07m

$784

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 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 month to fly to Quito?

The cheapest month to fly to Quito from St. Louis is in November. Flight prices, which tend to average around $0, are often lower during this time because this is during the off-season. If you aren’t able to travel to Quito during the month of November, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $0.

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

You could potentially save up to 17% 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

10h 59m

Direct flights

None
The fastest flight from St. Louis to Quito takes 10h 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

Frequently asked questions about flying from St. Louis to Quito

  • 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 10h 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
7.1
11,629 reviews
Search American Airlines flights
DeltaPriceFrom $661Free CancellationRating
7.9
8,434 reviews
Search Delta flights

Traveling to a place near Quito?

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

Why use momondo?

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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