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Cheap flights from Quito to St. Louis from $796

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Quito to St. Louis departing on 6/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Find the cheapest flights from Quito to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
11:59 pm - 10:34 am
UIO
-
STL
10h 35m
1 stop
American Airlines Logo
5:17 am - 11:58 pm
STL
-
UIO
18h 41m
1 stop
$796American Airlines
Tue, Jun 2 - Tue, Jul 21
American Airlines Logo
11:59 pm - 4:33 pm
UIO
-
STL
16h 34m
2 stops
American Airlines Logo
11:00 am - 11:58 pm
STL
-
UIO
12h 58m
1 stop
$801American Airlines
Tue, Jun 2 - Tue, Jul 21
Delta Logo
12:59 am - 11:53 pm
UIO
-
STL
22h 54m
1 stop
Delta Logo
7:20 am - 6:59 pm
STL
-
UIO
11h 39m
1 stop
$830Delta
Thu, Aug 6 - Tue, Aug 18
Delta Logo
12:59 am - 11:53 pm
UIO
-
STL
22h 54m
1 stop
Delta Logo
6:30 am - 7:05 pm
STL
-
UIO
12h 35m
2 stops
$858Delta
Thu, Aug 6 - Tue, Aug 18
Delta Logo
6:50 pm - 5:56 pm
UIO
-
STL
23h 06m
2 stops
Delta Logo
7:03 pm - 7:05 pm
STL
-
UIO
24h 02m
2 stops
$884Delta
Thu, Jun 4 - Sat, Jul 18
LATAM Airlines Logo
12:59 am - 11:54 am
UIO
-
STL
10h 55m
1 stop
LATAM Airlines Logo
6:00 am - 6:59 pm
STL
-
UIO
12h 59m
1 stop
$893LATAM Airlines
Fri, May 29 - Wed, Jul 22
American Airlines Logo
6:30 am - 8:52 pm
UIO
-
STL
14h 22m
2 stops
American Airlines Logo
11:18 am - 11:58 pm
STL
-
UIO
12h 40m
2 stops
$898American Airlines
Tue, Jun 16 - Tue, Jun 23
American Airlines Logo
6:00 am - 10:58 pm
UIO
-
STL
16h 58m
1 stop
American Airlines Logo
5:15 am - 8:57 pm
STL
-
UIO
15h 42m
1 stop
$915American Airlines
Thu, Jun 18 - Tue, Jun 23
Delta Logo
12:59 am - 9:44 am
UIO
-
STL
8h 45m
1 stop
Delta Logo
6:58 pm - 7:05 pm
STL
-
UIO
24h 07m
2 stops
$920Delta
Sat, May 30 - Mon, Jul 20
LATAM Airlines Logo
12:59 am - 11:54 am
UIO
-
STL
10h 55m
1 stop
LATAM Airlines Logo
6:00 am - 11:00 pm
STL
-
UIO
17h 00m
2 stops
$929LATAM Airlines
Fri, May 29 - Fri, Jul 24

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United Airlines flights from Quito to St. Louis

Our best United Airlines deals on Quito to St. Louis flight tickets
United Airlines
Aug 7
UIO7:25 amQuito Mariscal Sucr
28h 42m
2 stops
STL12:07 pmLambert-St Louis
Aug 18
STL1:18 pmLambert-St Louis
34h 07m
2 stops
UIO11:25 pmQuito Mariscal Sucr
$954
United Airlines
May 7
UIO12:35 amQuito Mariscal Sucr
46h 10m
2 stops
STL10:45 pmLambert-St Louis
May 11
STL6:00 amLambert-St Louis
17h 25m
1 stop
UIO11:25 pmQuito Mariscal Sucr
$1,232
United Airlines
May 7
UIO12:35 amQuito Mariscal Sucr
34h 13m
2 stops
STL10:48 amLambert-St Louis
May 11
STL5:28 pmLambert-St Louis
29h 57m
2 stops
UIO11:25 pmQuito Mariscal Sucr
$1,241

LATAM Airlines flights from Quito to St. Louis

Our best LATAM Airlines deals on Quito to St. Louis flight tickets
LATAM Airlines
May 29
UIO12:59 amQuito Mariscal Sucr
10h 55m
1 stop
STL11:54 amLambert-St Louis
Jul 22
STL6:00 amLambert-St Louis
12h 59m
1 stop
UIO6:59 pmQuito Mariscal Sucr
$893
LATAM Airlines
May 29
UIO12:59 amQuito Mariscal Sucr
10h 55m
1 stop
STL11:54 amLambert-St Louis
Jul 24
STL6:00 amLambert-St Louis
17h 00m
2 stops
UIO11:00 pmQuito Mariscal Sucr
$929
LATAM Airlines
May 29
UIO12:59 amQuito Mariscal Sucr
10h 55m
1 stop
STL11:54 amLambert-St Louis
Jul 23
STL6:58 pmLambert-St Louis
28h 02m
2 stops
UIO11:00 pmQuito Mariscal Sucr
$948

momondo Fare Finder

 
Customize your flight search to find flights from Quito to St. Louis 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 27, 2026.
Use the filters below to find and compare flights from Quito to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

QuitoSt. Louis

UIO - STL

UIOSTL

Quito Mariscal Sucr

Tue 6/2

11:59 pm-10:34 am

1 stop10h 35m

Lambert-St Louis

Tue 7/21

5:17 am-11:58 pm

1 stop18h 41m

$796

QuitoSt. Louis

UIO - STL

UIOSTL

Quito Mariscal Sucr

Tue 6/2

11:59 pm-4:33 pm

2 stops16h 34m

Lambert-St Louis

Tue 7/21

11:00 am-11:58 pm

1 stop12h 58m

$801

QuitoSt. Louis

UIO - STL

UIOSTL

Quito Mariscal Sucr

Thu 8/6

12:59 am-11:53 pm

1 stop22h 54m

Lambert-St Louis

Tue 8/18

7:20 am-6:59 pm

1 stop11h 39m

$830

QuitoSt. Louis

UIO - STL

UIOSTL

Quito Mariscal Sucr

Thu 8/6

12:59 am-11:53 pm

1 stop22h 54m

Lambert-St Louis

Tue 8/18

6:30 am-7:05 pm

2 stops12h 35m

$858

QuitoSt. Louis

UIO - STL

UIOSTL

Quito Mariscal Sucr

Thu 6/4

6:50 pm-5:56 pm

2 stops23h 06m

Lambert-St Louis

Sat 7/18

7:03 pm-7:05 pm

2 stops24h 02m

$884
Quickest round-trip

QuitoSt. Louis

UIO - STL

UIOSTL

Quito Mariscal Sucr

Fri 5/29

12:59 am-11:54 am

1 stop10h 55m

Lambert-St Louis

Wed 7/22

6:00 am-6:59 pm

1 stop12h 59m

$893

QuitoSt. Louis

UIO - STL

UIOSTL

Quito Mariscal Sucr

Tue 6/16

6:30 am-8:52 pm

2 stops14h 22m

Lambert-St Louis

Tue 6/23

11:18 am-11:58 pm

2 stops12h 40m

$898

QuitoSt. Louis

UIO - STL

UIOSTL

Quito Mariscal Sucr

Thu 6/18

6:00 am-10:58 pm

1 stop16h 58m

Lambert-St Louis

Tue 6/23

5:15 am-8:57 pm

1 stop15h 42m

$915

QuitoSt. Louis

UIO - STL

UIOSTL

Quito Mariscal Sucr

Sat 5/30

12:59 am-9:44 am

1 stop8h 45m

Lambert-St Louis

Mon 7/20

6:58 pm-7:05 pm

2 stops24h 07m

$920

QuitoSt. Louis

UIO - STL

UIOSTL

Quito Mariscal Sucr

Fri 5/29

12:59 am-11:54 am

1 stop10h 55m

Lambert-St Louis

Fri 7/24

6:00 am-11:00 pm

2 stops17h 00m

$929

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to St. Louis from

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

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 Quito and St. Louis?

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

You could potentially save up to 9% on your flight if you consider stops on a Quito to St. Louis flight.

When to book flights from Quito to St. Louis

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

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

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

Fastest flight time

13h 12m

Direct flights

None
The fastest flight from Quito to St. Louis takes 13h 12m
There are no direct flights from Quito to St. Louis. There are no popular flight routes from Quito to St. Louis.
Search flight deals

Frequently asked questions about flying from Quito to St. Louis

  • How far is Quito Mariscal Sucr to Lambert-St Louis by plane?

    A flight from Quito Mariscal Sucr to Lambert-St Louis will travel around 2783.2 mi. In terms of flight time, this usually takes a little over 13h 12m.

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

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Quito Mariscal Sucr Airport to Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The necessary travel and health documents for your Lambert-St Louis Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Hermann
Fairview Heights
Maryland Heights
O'Fallon
Florissant
St. Peters
Collinsville
Wentzville
Alton
Fenton
Farmington
Festus
Clayton
Eureka
Litchfield
Edwardsville
Shrewsbury
Grafton

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Quito to St. Louis for you.

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

Yes. All flights to St. Louis from Quito on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once all potential Quito to St. Louis flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Price alerts on flights to St. Louis from Quito are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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