Cheap flights from Quito to St. Louis from $297

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Quito to St. Louis departing on 1/27. 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 Quito to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
7:25 am - 8:35 am
UIO
-
STL
25h 10m
2 stops
United Airlines Logo
9:10 am - 11:25 pm
STL
-
UIO
14h 15m
2 stops
$709United Airlines
Mon, Mar 30 - Thu, Apr 9
American Airlines Logo
7:05 am - 10:24 pm
UIO
-
STL
15h 19m
1 stop
American Airlines Logo
11:06 am - 7:37 pm
STL
-
UIO
8h 31m
1 stop
$718American Airlines
Tue, Apr 14 - Tue, May 5
United Airlines Logo
12:35 am - 9:25 am
UIO
-
STL
8h 50m
1 stop
United Airlines Logo
7:45 am - 11:25 pm
STL
-
UIO
39h 40m
2 stops
$721United Airlines
Wed, Apr 15 - Thu, May 7
American Airlines Logo
7:05 am - 11:04 pm
UIO
-
STL
15h 59m
2 stops
American Airlines Logo
5:24 am - 7:37 pm
STL
-
UIO
14h 13m
1 stop
$722American Airlines
Tue, Apr 14 - Tue, May 5
United Airlines Logo
1:35 am - 9:23 am
UIO
-
STL
8h 48m
1 stop
United Airlines Logo
6:00 am - 11:25 pm
STL
-
UIO
17h 25m
1 stop
$730United Airlines
Thu, Feb 19 - Mon, Apr 20
United Airlines Logo
12:35 am - 9:25 am
UIO
-
STL
8h 50m
1 stop
United Airlines Logo
11:15 am - 11:25 pm
STL
-
UIO
12h 10m
2 stops
$733United Airlines
Fri, Apr 17 - Sat, May 9
Multiple Airlines Logo
12:35 am - 9:25 am
UIO
-
STL
8h 50m
1 stop
Multiple Airlines Logo
10:14 am - 5:00 am
STL
-
UIO
18h 46m
1 stop
$738Multiple Airlines
Fri, Apr 17 - Sat, May 9
United Airlines Logo
12:35 am - 9:25 am
UIO
-
STL
8h 50m
1 stop
United Airlines Logo
6:00 am - 11:25 pm
STL
-
UIO
17h 25m
1 stop
$742United Airlines
Fri, Apr 17 - Sun, May 10
United Airlines Logo
12:35 am - 9:08 pm
UIO
-
STL
20h 33m
2 stops
United Airlines Logo
7:45 am - 11:25 pm
STL
-
UIO
15h 40m
2 stops
$746United Airlines
Fri, Apr 17 - Sun, May 10
United Airlines Logo
12:35 am - 9:42 pm
UIO
-
STL
21h 07m
2 stops
United Airlines Logo
7:45 am - 11:25 pm
STL
-
UIO
15h 40m
2 stops
$747United Airlines
Tue, Mar 24 - Mon, Apr 13

United Airlines flights from Quito to St. Louis

Our best United Airlines deals on Quito to St. Louis flight tickets
United Airlines
Mar 30
UIO7:25 amQuito Mariscal Sucr
25h 10m
2 stops
STL8:35 amLambert-St Louis
Apr 9
STL9:10 amLambert-St Louis
14h 15m
2 stops
UIO11:25 pmQuito Mariscal Sucr
$709
United Airlines
Apr 15
UIO12:35 amQuito Mariscal Sucr
8h 50m
1 stop
STL9:25 amLambert-St Louis
May 7
STL7:45 amLambert-St Louis
39h 40m
2 stops
UIO11:25 pmQuito Mariscal Sucr
$721
United Airlines
Feb 19
UIO1:35 amQuito Mariscal Sucr
8h 48m
1 stop
STL9:23 amLambert-St Louis
Apr 20
STL6:00 amLambert-St Louis
17h 25m
1 stop
UIO11:25 pmQuito Mariscal Sucr
$730

Delta flights from Quito to St. Louis

Our best Delta deals on Quito to St. Louis flight tickets
Delta
Apr 18
UIO12:59 amQuito Mariscal Sucr
9h 35m
1 stop
STL10:34 amLambert-St Louis
May 10
STL2:18 pmLambert-St Louis
14h 25m
2 stops
UIO4:43 amQuito Mariscal Sucr
$757
Delta
Mar 25
UIO11:45 pmQuito Mariscal Sucr
9h 20m
1 stop
STL9:05 amLambert-St Louis
Apr 13
STL7:15 amLambert-St Louis
11h 44m
1 stop
UIO6:59 pmQuito Mariscal Sucr
$766
Delta
Apr 18
UIO12:59 amQuito Mariscal Sucr
9h 35m
1 stop
STL10:34 amLambert-St Louis
May 7
STL1:30 pmLambert-St Louis
15h 13m
2 stops
UIO4:43 amQuito Mariscal Sucr
$770

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 January 22, 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

QuitoSt. Louis

UIO - STL

UIOSTL

Quito Mariscal Sucr

Mon 3/30

7:25 am-8:35 am

2 stops25h 10m

Lambert-St Louis

Thu 4/9

9:10 am-11:25 pm

2 stops14h 15m

$709

QuitoSt. Louis

UIO - STL

UIOSTL

Quito Mariscal Sucr

Tue 4/14

7:05 am-10:24 pm

1 stop15h 19m

Lambert-St Louis

Tue 5/5

11:06 am-7:37 pm

1 stop8h 31m

$718

QuitoSt. Louis

UIO - STL

UIOSTL

Quito Mariscal Sucr

Wed 4/15

12:35 am-9:25 am

1 stop8h 50m

Lambert-St Louis

Thu 5/7

7:45 am-11:25 pm

2 stops39h 40m

$721

QuitoSt. Louis

UIO - STL

UIOSTL

Quito Mariscal Sucr

Tue 4/14

7:05 am-11:04 pm

2 stops15h 59m

Lambert-St Louis

Tue 5/5

5:24 am-7:37 pm

1 stop14h 13m

$722

QuitoSt. Louis

UIO - STL

UIOSTL

Quito Mariscal Sucr

Thu 2/19

1:35 am-9:23 am

1 stop8h 48m

Lambert-St Louis

Mon 4/20

6:00 am-11:25 pm

1 stop17h 25m

$730

QuitoSt. Louis

UIO - STL

UIOSTL

Quito Mariscal Sucr

Fri 4/17

12:35 am-9:25 am

1 stop8h 50m

Lambert-St Louis

Sat 5/9

11:15 am-11:25 pm

2 stops12h 10m

$733

QuitoSt. Louis

UIO - STL

UIOSTL

Quito Mariscal Sucr

Fri 4/17

12:35 am-9:25 am

1 stop8h 50m

Lambert-St Louis

Sat 5/9

10:14 am-5:00 am

1 stop18h 46m

$738

QuitoSt. Louis

UIO - STL

UIOSTL

Quito Mariscal Sucr

Fri 4/17

12:35 am-9:25 am

1 stop8h 50m

Lambert-St Louis

Sun 5/10

6:00 am-11:25 pm

1 stop17h 25m

$742

QuitoSt. Louis

UIO - STL

UIOSTL

Quito Mariscal Sucr

Fri 4/17

12:35 am-9:08 pm

2 stops20h 33m

Lambert-St Louis

Sun 5/10

7:45 am-11:25 pm

2 stops15h 40m

$746

QuitoSt. Louis

UIO - STL

UIOSTL

Quito Mariscal Sucr

Tue 3/24

12:35 am-9:42 pm

2 stops21h 07m

Lambert-St Louis

Mon 4/13

7:45 am-11:25 pm

2 stops15h 40m

$747

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 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

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

You could potentially save up to 2% 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

12h 19m

Direct flights

None
The fastest flight from Quito to St. Louis takes 12h 19m
There are no direct flights from Quito to St. Louis. There are no popular flight routes 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 12h 19m.

  • 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
Florissant
O'Fallon
Fenton
Collinsville
St. Peters
Wentzville
Alton
Farmington
Clayton
Eureka
Edwardsville
Festus
Glencoe
Litchfield
Shrewsbury

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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1 adult
Sat 2/21
Sat 2/28

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