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Cheap flights from Quito to St. Louis from $736

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 5/13. 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
1 adult, Economy, 0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
7:06 am - 11:19 pm
UIO
-
STL
16h 13m
2 stops
Multiple Airlines Logo
8:13 pm - 11:45 am
STL
-
UIO
39h 32m
3 stops
$736Multiple Airlines
mié., may. 13 - mié., may. 20
Multiple Airlines Logo
7:06 am - 11:19 pm
UIO
-
STL
16h 13m
2 stops
Multiple Airlines Logo
4:55 pm - 11:45 am
STL
-
UIO
42h 50m
2 stops
$740Multiple Airlines
mié., may. 13 - mié., may. 20
Multiple Airlines Logo
7:06 am - 7:12 pm
UIO
-
STL
36h 06m
3 stops
Multiple Airlines Logo
8:13 pm - 11:45 am
STL
-
UIO
39h 32m
3 stops
$742Multiple Airlines
mié., may. 13 - mié., may. 20
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
$779United Airlines
lun., abr. 13 - mar., may. 5
Multiple Airlines Logo
6:00 am - 11:19 pm
UIO
-
STL
41h 19m
3 stops
Multiple Airlines Logo
8:13 pm - 11:00 pm
STL
-
UIO
26h 47m
3 stops
$781Multiple Airlines
jue., may. 14 - mié., may. 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
$784United Airlines
lun., abr. 13 - mar., may. 5
United Airlines Logo
12:35 am - 10:07 am
UIO
-
STL
9h 32m
1 stop
United Airlines Logo
5:41 pm - 11:25 pm
STL
-
UIO
29h 44m
2 stops
$788United Airlines
mar., jul. 7 - mar., jul. 28
American Airlines Logo
11:40 pm - 10:24 pm
UIO
-
STL
22h 44m
1 stop
American Airlines Logo
11:06 am - 10:24 pm
STL
-
UIO
11h 18m
1 stop
$791American Airlines
mié., may. 13 - mié., may. 20
American Airlines Logo
11:40 pm - 3:08 pm
UIO
-
STL
15h 28m
2 stops
American Airlines Logo
11:06 am - 10:24 pm
STL
-
UIO
11h 18m
1 stop
$796American Airlines
mié., may. 13 - mié., may. 20
American Airlines Logo
7:05 am - 10:24 pm
UIO
-
STL
15h 19m
1 stop
American Airlines Logo
5:24 am - 7:57 pm
STL
-
UIO
14h 33m
1 stop
$803American Airlines
mar., abr. 14 - mar., may. 5

LATAM Airlines flights from Quito to St. Louis

Our best LATAM Airlines deals on Quito to St. Louis flight tickets
LATAM Airlines
Jun 18
UIO6:50 pmQuito Mariscal Sucr
15h 55m
2 stops
STL10:45 amLambert-St Louis
Jul 5
STL5:30 pmLambert-St Louis
25h 29m
1 stop
UIO6:59 pmQuito Mariscal Sucr
$1,112
LATAM Airlines
Jun 18
UIO6:50 pmQuito Mariscal Sucr
15h 55m
2 stops
STL10:45 amLambert-St Louis
Jul 5
STL1:30 pmLambert-St Louis
29h 29m
1 stop
UIO6:59 pmQuito Mariscal Sucr
$1,137
LATAM Airlines
Aug 26
UIO7:06 amQuito Mariscal Sucr
16h 31m
2 stops
STL11:37 pmLambert-St Louis
Aug 29
STL6:00 amLambert-St Louis
12h 59m
1 stop
UIO6:59 pmQuito Mariscal Sucr
$1,139

American Airlines flights from Quito to St. Louis

Our best American Airlines deals on Quito to St. Louis flight tickets
American Airlines
May 13
UIO11:40 pmQuito Mariscal Sucr
22h 44m
1 stop
STL10:24 pmLambert-St Louis
May 20
STL11:06 amLambert-St Louis
11h 18m
1 stop
UIO10:24 pmQuito Mariscal Sucr
$791
American Airlines
May 13
UIO11:40 pmQuito Mariscal Sucr
15h 28m
2 stops
STL3:08 pmLambert-St Louis
May 20
STL11:06 amLambert-St Louis
11h 18m
1 stop
UIO10:24 pmQuito Mariscal Sucr
$796
American Airlines
Apr 14
UIO7:05 amQuito Mariscal Sucr
15h 19m
1 stop
STL10:24 pmLambert-St Louis
May 5
STL5:24 amLambert-St Louis
14h 33m
1 stop
UIO7:57 pmQuito Mariscal Sucr
$803

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 marzo 14, 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

mié. 5/13

7:06 am-11:19 pm

2 stops16h 13m

Lambert-St Louis

mié. 5/20

8:13 pm-11:45 am

3 stops39h 32m

$736

QuitoSt. Louis

UIO - STL

UIOSTL

Quito Mariscal Sucr

mié. 5/13

7:06 am-11:19 pm

2 stops16h 13m

Lambert-St Louis

mié. 5/20

4:55 pm-11:45 am

2 stops42h 50m

$740

QuitoSt. Louis

UIO - STL

UIOSTL

Quito Mariscal Sucr

mié. 5/13

7:06 am-7:12 pm

3 stops36h 06m

Lambert-St Louis

mié. 5/20

8:13 pm-11:45 am

3 stops39h 32m

$742

QuitoSt. Louis

UIO - STL

UIOSTL

Quito Mariscal Sucr

lun. 4/13

12:35 am-9:25 am

1 stop8h 50m

Lambert-St Louis

mar. 5/5

6:00 am-11:25 pm

1 stop17h 25m

$779

QuitoSt. Louis

UIO - STL

UIOSTL

Quito Mariscal Sucr

jue. 5/14

6:00 am-11:19 pm

3 stops41h 19m

Lambert-St Louis

mié. 5/20

8:13 pm-11:00 pm

3 stops26h 47m

$781
Quickest round-trip

QuitoSt. Louis

UIO - STL

UIOSTL

Quito Mariscal Sucr

lun. 4/13

12:35 am-9:25 am

1 stop8h 50m

Lambert-St Louis

mar. 5/5

11:15 am-11:25 pm

2 stops12h 10m

$784

QuitoSt. Louis

UIO - STL

UIOSTL

Quito Mariscal Sucr

mar. 7/7

12:35 am-10:07 am

1 stop9h 32m

Lambert-St Louis

mar. 7/28

5:41 pm-11:25 pm

2 stops29h 44m

$788

QuitoSt. Louis

UIO - STL

UIOSTL

Quito Mariscal Sucr

mié. 5/13

11:40 pm-10:24 pm

1 stop22h 44m

Lambert-St Louis

mié. 5/20

11:06 am-10:24 pm

1 stop11h 18m

$791

QuitoSt. Louis

UIO - STL

UIOSTL

Quito Mariscal Sucr

mié. 5/13

11:40 pm-3:08 pm

2 stops15h 28m

Lambert-St Louis

mié. 5/20

11:06 am-10:24 pm

1 stop11h 18m

$796

QuitoSt. Louis

UIO - STL

UIOSTL

Quito Mariscal Sucr

mar. 4/14

7:05 am-10:24 pm

1 stop15h 19m

Lambert-St Louis

mar. 5/5

5:24 am-7:57 pm

1 stop14h 33m

$803

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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

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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

15h 03m

Direct flights

None
The fastest flight from Quito to St. Louis takes 15h 03m
There are no direct flights from Quito to St. Louis. There are no popular flight routes from Quito to St. Louis.
Search flight deals

  • 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 15h 03m.

  • 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 many operators does momondo search for flights from Quito Mariscal Sucr Airport to Lambert-St Louis Airport?

  • 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.

  • What is the most popular airline from Quito to St. Louis?

Best airlines flying from Quito to St. Louis

Compare and see reviews for airlines that fly from Quito to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $755Free CancellationRating
7.9
8,291 reviews
Search Delta flights

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