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Cheap flights from St. Louis to Quito from $299

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 8/19. 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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Find the cheapest flights from St. Louis to Quito

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
12:45 pm - 4:43 am
STL
-
UIO
15h 58m
2 stops
Delta Logo
6:50 pm - 12:23 pm
UIO
-
STL
17h 33m
2 stops
$678Delta
Tue, Apr 28 - Wed, May 6
American Airlines Logo
5:24 am - 10:32 pm
STL
-
UIO
17h 08m
1 stop
American Airlines Logo
11:40 pm - 10:16 am
UIO
-
STL
10h 36m
1 stop
$687American Airlines
Mon, May 11 - Mon, May 18
Delta Logo
9:59 am - 6:59 pm
STL
-
UIO
9h 00m
1 stop
Delta Logo
12:59 am - 4:10 pm
UIO
-
STL
15h 11m
1 stop
$688Delta
Tue, Apr 28 - Thu, May 7
United Airlines Logo
8:30 pm - 11:25 pm
STL
-
UIO
26h 55m
2 stops
United Airlines Logo
7:25 am - 8:39 am
UIO
-
STL
25h 14m
2 stops
$692United Airlines
Mon, May 11 - Mon, May 18
United Airlines Logo
6:14 am - 11:25 pm
STL
-
UIO
17h 11m
1 stop
United Airlines Logo
12:35 am - 10:07 am
UIO
-
STL
9h 32m
1 stop
$698United Airlines
Sun, May 31 - Sat, Jun 6
Delta Logo
10:49 am - 4:43 am
STL
-
UIO
17h 54m
2 stops
Delta Logo
6:50 pm - 8:39 pm
UIO
-
STL
25h 49m
2 stops
$712Delta
Sun, May 31 - Sat, Jun 6
United Airlines Logo
11:10 am - 5:00 am
STL
-
UIO
17h 50m
1 stop
United Airlines Logo
12:35 am - 10:07 am
UIO
-
STL
9h 32m
1 stop
$722United Airlines
Sun, May 31 - Fri, Jun 5
Delta Logo
7:15 am - 4:43 am
STL
-
UIO
21h 28m
2 stops
Delta Logo
6:50 pm - 4:10 pm
UIO
-
STL
21h 20m
2 stops
$726Delta
Thu, May 21 - Mon, May 25
Delta Logo
9:59 am - 6:59 pm
STL
-
UIO
9h 00m
1 stop
Delta Logo
12:59 am - 11:56 am
UIO
-
STL
10h 57m
1 stop
$735Delta
Tue, Apr 28 - Sun, May 3
American Airlines Logo
11:04 am - 11:59 pm
STL
-
UIO
12h 55m
1 stop
American Airlines Logo
11:59 pm - 5:20 pm
UIO
-
STL
17h 21m
2 stops
$740American Airlines
Mon, Jun 1 - Sun, Jun 7

Delta flights from St. Louis to Quito

Our best Delta deals on St. Louis to Quito flight tickets
Delta
Apr 28
STL12:45 pmLambert-St Louis
15h 58m
2 stops
UIO4:43 amQuito Mariscal Sucr
May 6
UIO6:50 pmQuito Mariscal Sucr
17h 33m
2 stops
STL12:23 pmLambert-St Louis
$678
Delta
Apr 28
STL9:59 amLambert-St Louis
9h 00m
1 stop
UIO6:59 pmQuito Mariscal Sucr
May 7
UIO12:59 amQuito Mariscal Sucr
15h 11m
1 stop
STL4:10 pmLambert-St Louis
$688
Delta
May 16
STL7:05 pmLambert-St Louis
23h 54m
1 stop
UIO6:59 pmQuito Mariscal Sucr
May 22
UIO12:59 amQuito Mariscal Sucr
17h 01m
1 stop
STL6:00 pmLambert-St Louis
$713

LATAM Airlines flights from St. Louis to Quito

Our best LATAM Airlines deals on St. Louis to Quito flight tickets
LATAM Airlines
Apr 30
STL9:59 amLambert-St Louis
9h 00m
1 stop
UIO6:59 pmQuito Mariscal Sucr
May 6
UIO12:59 amQuito Mariscal Sucr
8h 45m
1 stop
STL9:44 amLambert-St Louis
$687
LATAM Airlines
May 16
STL6:00 amLambert-St Louis
29h 45m
2 stops
UIO11:45 amQuito Mariscal Sucr
May 23
UIO6:50 pmQuito Mariscal Sucr
14h 59m
2 stops
STL9:49 amLambert-St Louis
$748
LATAM Airlines
Jul 27
STL6:00 amLambert-St Louis
12h 59m
1 stop
UIO6:59 pmQuito Mariscal Sucr
Aug 5
UIO6:50 pmQuito Mariscal Sucr
17h 27m
2 stops
STL12:17 pmLambert-St Louis
$784

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 April 1, 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

Tue 4/28

12:45 pm-4:43 am

2 stops15h 58m

Quito Mariscal Sucr

Wed 5/6

6:50 pm-12:23 pm

2 stops17h 33m

$678

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Mon 5/11

5:24 am-10:32 pm

1 stop17h 08m

Quito Mariscal Sucr

Mon 5/18

11:40 pm-10:16 am

1 stop10h 36m

$687

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Tue 4/28

9:59 am-6:59 pm

1 stop9h 00m

Quito Mariscal Sucr

Thu 5/7

12:59 am-4:10 pm

1 stop15h 11m

$688

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Mon 5/11

8:30 pm-11:25 pm

2 stops26h 55m

Quito Mariscal Sucr

Mon 5/18

7:25 am-8:39 am

2 stops25h 14m

$692

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Sun 5/31

6:14 am-11:25 pm

1 stop17h 11m

Quito Mariscal Sucr

Sat 6/6

12:35 am-10:07 am

1 stop9h 32m

$698

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Sun 5/31

10:49 am-4:43 am

2 stops17h 54m

Quito Mariscal Sucr

Sat 6/6

6:50 pm-8:39 pm

2 stops25h 49m

$712

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Sun 5/31

11:10 am-5:00 am

1 stop17h 50m

Quito Mariscal Sucr

Fri 6/5

12:35 am-10:07 am

1 stop9h 32m

$722

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Thu 5/21

7:15 am-4:43 am

2 stops21h 28m

Quito Mariscal Sucr

Mon 5/25

6:50 pm-4:10 pm

2 stops21h 20m

$726
Quickest round-trip

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Tue 4/28

9:59 am-6:59 pm

1 stop9h 00m

Quito Mariscal Sucr

Sun 5/3

12:59 am-11:56 am

1 stop10h 57m

$735

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Mon 6/1

11:04 am-11:59 pm

1 stop12h 55m

Quito Mariscal Sucr

Sun 6/7

11:59 pm-5:20 pm

2 stops17h 21m

$740

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 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 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

8h 10m

Direct flights

None
The fastest flight from St. Louis to Quito takes 8h 10m
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 8h 10m 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
11,542 reviews
Search American Airlines flights
United AirlinesPriceFrom $634Free CancellationRating
7.4
9,527 reviews
Search United Airlines flights
LATAM AirlinesPriceFrom $655Free CancellationRating
7.4
1,904 reviews
Search LATAM Airlines flights
DeltaPriceFrom $661Free CancellationRating
7.9
8,363 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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