Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from Quito to St. Louis from $386

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 6/30. 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

Find the cheapest flights from Quito to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
Copa Airlines Logo
6:30 pm - 2:23 pm
UIO
-
STL
19h 53m
2 stops
Copa Airlines Logo
5:29 pm - 2:09 pm
STL
-
UIO
20h 40m
2 stops
$808Copa Airlines
Fri, Jun 19 - Sun, Jun 21
Copa Airlines Logo
3:09 pm - 8:39 am
UIO
-
STL
17h 30m
2 stops
Copa Airlines Logo
9:20 am - 12:31 pm
STL
-
UIO
27h 11m
2 stops
$809Copa Airlines
Thu, Jul 2 - Mon, Jul 13
United Airlines Logo
12:35 am - 5:42 pm
UIO
-
STL
17h 07m
1 stop
United Airlines Logo
5:30 pm - 5:00 am
STL
-
UIO
11h 30m
2 stops
$830United Airlines
Thu, Aug 6 - Sun, Aug 16
Copa Airlines Logo
6:30 pm - 3:46 pm
UIO
-
STL
21h 16m
2 stops
Copa Airlines Logo
7:20 am - 12:33 am
STL
-
UIO
17h 13m
2 stops
$862Copa Airlines
Wed, Jun 17 - Thu, Jul 9
Delta Logo
12:59 am - 4:17 pm
UIO
-
STL
15h 18m
1 stop
Delta Logo
10:44 am - 6:59 pm
STL
-
UIO
8h 15m
1 stop
$878Delta
Thu, Aug 6 - Sun, Aug 16
United Airlines Logo
12:35 am - 5:42 pm
UIO
-
STL
17h 07m
1 stop
United Airlines Logo
5:30 pm - 5:00 am
STL
-
UIO
11h 30m
2 stops
$894United Airlines
Thu, Aug 6 - Sun, Aug 16
United Airlines Logo
7:25 am - 10:45 pm
UIO
-
STL
15h 20m
1 stop
United Airlines Logo
5:59 pm - 11:25 pm
STL
-
UIO
29h 26m
2 stops
$902United Airlines
Sun, Jul 5 - Sun, Jul 12
United Airlines Logo
7:25 am - 12:11 pm
UIO
-
STL
28h 46m
2 stops
United Airlines Logo
5:30 pm - 5:00 am
STL
-
UIO
11h 30m
2 stops
$912United Airlines
Fri, Aug 7 - Sun, Aug 16
United Airlines Logo
12:35 am - 2:16 pm
UIO
-
STL
13h 41m
1 stop
United Airlines Logo
8:35 am - 5:00 am
STL
-
UIO
20h 25m
1 stop
$932United Airlines
Sat, Jul 4 - Sun, Jul 12
United Airlines Logo
7:25 am - 12:11 pm
UIO
-
STL
28h 46m
2 stops
United Airlines Logo
8:00 am - 5:00 am
STL
-
UIO
21h 00m
2 stops
$956United Airlines
Fri, Aug 7 - Sun, Aug 16

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

American Airlines flights from Quito to St. Louis

Our best American Airlines deals on Quito to St. Louis flight tickets
American Airlines
Aug 7
UIO11:56 pmQuito Mariscal Sucr
10h 49m
1 stop
STL10:45 amLambert-St Louis
Aug 16
STL11:35 amLambert-St Louis
12h 22m
1 stop
UIO11:57 pmQuito Mariscal Sucr
$984
American Airlines
Aug 7
UIO6:00 amQuito Mariscal Sucr
16h 40m
1 stop
STL10:40 pmLambert-St Louis
Aug 16
STL11:35 amLambert-St Louis
12h 22m
1 stop
UIO11:57 pmQuito Mariscal Sucr
$985
American Airlines
Aug 7
UIO11:56 pmQuito Mariscal Sucr
10h 49m
1 stop
STL10:45 amLambert-St Louis
Aug 16
STL11:35 amLambert-St Louis
12h 22m
1 stop
UIO11:57 pmQuito Mariscal Sucr
$986

United Airlines flights from Quito to St. Louis

Our best United Airlines deals on Quito to St. Louis flight tickets
United Airlines
Aug 6
UIO12:35 amQuito Mariscal Sucr
17h 07m
1 stop
STL5:42 pmLambert-St Louis
Aug 16
STL5:30 pmLambert-St Louis
11h 30m
2 stops
UIO5:00 amQuito Mariscal Sucr
$830
United Airlines
Aug 6
UIO12:35 amQuito Mariscal Sucr
17h 07m
1 stop
STL5:42 pmLambert-St Louis
Aug 16
STL5:30 pmLambert-St Louis
11h 30m
2 stops
UIO5:00 amQuito Mariscal Sucr
$894
United Airlines
Jul 5
UIO7:25 amQuito Mariscal Sucr
15h 20m
1 stop
STL10:45 pmLambert-St Louis
Jul 12
STL5:59 pmLambert-St Louis
29h 26m
2 stops
UIO11:25 pmQuito Mariscal Sucr
$902

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 June 13, 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

Fri 6/19

6:30 pm-2:23 pm

2 stops19h 53m

Lambert-St Louis

Sun 6/21

5:29 pm-2:09 pm

2 stops20h 40m

$808

QuitoSt. Louis

UIO - STL

UIOSTL

Quito Mariscal Sucr

Thu 7/2

3:09 pm-8:39 am

2 stops17h 30m

Lambert-St Louis

Mon 7/13

9:20 am-12:31 pm

2 stops27h 11m

$809

QuitoSt. Louis

UIO - STL

UIOSTL

Quito Mariscal Sucr

Thu 8/6

12:35 am-5:42 pm

1 stop17h 07m

Lambert-St Louis

Sun 8/16

5:30 pm-5:00 am

2 stops11h 30m

$830

QuitoSt. Louis

UIO - STL

UIOSTL

Quito Mariscal Sucr

Wed 6/17

6:30 pm-3:46 pm

2 stops21h 16m

Lambert-St Louis

Thu 7/9

7:20 am-12:33 am

2 stops17h 13m

$862
Quickest round-trip

QuitoSt. Louis

UIO - STL

UIOSTL

Quito Mariscal Sucr

Thu 8/6

12:59 am-4:17 pm

1 stop15h 18m

Lambert-St Louis

Sun 8/16

10:44 am-6:59 pm

1 stop8h 15m

$878

QuitoSt. Louis

UIO - STL

UIOSTL

Quito Mariscal Sucr

Thu 8/6

12:35 am-5:42 pm

1 stop17h 07m

Lambert-St Louis

Sun 8/16

5:30 pm-5:00 am

2 stops11h 30m

$894

QuitoSt. Louis

UIO - STL

UIOSTL

Quito Mariscal Sucr

Sun 7/5

7:25 am-10:45 pm

1 stop15h 20m

Lambert-St Louis

Sun 7/12

5:59 pm-11:25 pm

2 stops29h 26m

$902

QuitoSt. Louis

UIO - STL

UIOSTL

Quito Mariscal Sucr

Fri 8/7

7:25 am-12:11 pm

2 stops28h 46m

Lambert-St Louis

Sun 8/16

5:30 pm-5:00 am

2 stops11h 30m

$912

QuitoSt. Louis

UIO - STL

UIOSTL

Quito Mariscal Sucr

Sat 7/4

12:35 am-2:16 pm

1 stop13h 41m

Lambert-St Louis

Sun 7/12

8:35 am-5:00 am

1 stop20h 25m

$932

QuitoSt. Louis

UIO - STL

UIOSTL

Quito Mariscal Sucr

Fri 8/7

7:25 am-12:11 pm

2 stops28h 46m

Lambert-St Louis

Sun 8/16

8:00 am-5:00 am

2 stops21h 00m

$956

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 resultsSorted by cheapest first
1
2

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?

What is the cheapest month to fly to St. Louis?

In general, October is the cheapest month to fly from Quito to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $0. The month of December is another great option to travel to St. Louis, with average flight prices from Quito averaging around $639.

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

You could potentially save up to 1% 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

10h 17m

Direct flights

None
The fastest flight from Quito to St. Louis takes 10h 17m
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 10h 17m.

  • 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
Fairview Heights
Hermann
Maryland Heights
Florissant
O'Fallon
St. Peters
Collinsville
Alton
Wentzville
Fenton
Clayton
Farmington
Festus
Eureka
Litchfield
Edwardsville
Grafton
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.

An easier way to manage your St. Louis trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Mon 7/13
Mon 7/20
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States