What is the cheapest airline that flies from Lambert-St Louis to Ecuador?

United Airlines, Delta, and American Airlines are the most popular carriers operating from Lambert-St Louis to Ecuador

What airlines fly to Ecuador?

Delta, American Airlines and LATAM Airlines are the top three most popular airlines that fly to Ecuador from St. Louis according to our data. Delta is the first choice among our users, with 36% of people opting to fly with this airline when traveling to Ecuador. Keep in mind that there are 4 different airlines that fly to Ecuador on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Lambert-St Louis Airport to Ecuador?

Prices for flights from Lambert-St Louis Airport to Ecuador were last updated today.

How many operators does momondo search for flights from Lambert-St Louis Airport to Ecuador?

As of December 2025, there are 4 operators available to choose from for flights from Lambert-St Louis Airport to Ecuador.

How old do you have to be to fly from Lambert-St Louis Airport to Ecuador?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Ecuador.

What documentation or ID do you need to fly to Ecuador?

The necessary travel and health documents for your Ecuador 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.

$167 Cheap Flights from St. Louis to Ecuador in 2025/26

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Find the cheapest flights from St. Louis to Ecuador

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:00 am - 8:46 pm

STL

GYE

13h 46m2 stops

2:35 pm - 9:22 am

GYE

STL

43h 47m2 stops

$607United Airlines

Fri, Jan 30 - Fri, Feb 6

6:02 pm - 11:22 pm

STL

GYE

28h 20m1 stop

7:15 am - 11:59 pm

GYE

STL

17h 44m1 stop

$616American Airlines

Fri, Jan 30 - Fri, Feb 6

6:02 pm - 11:22 pm

STL

GYE

28h 20m1 stop

7:15 am - 11:12 pm

GYE

STL

16h 57m2 stops

$620American Airlines

Fri, Jan 30 - Fri, Feb 6

6:00 am - 12:30 am

STL

UIO

17h 30m1 stop

1:35 am - 2:30 pm

UIO

STL

13h 55m2 stops

$639United Airlines

Fri, Jan 30 - Thu, Feb 5

7:15 am - 11:47 pm

STL

UIO

15h 32m2 stops

12:45 am - 10:26 am

UIO

STL

10h 41m1 stop

$676American Airlines

Sun, Feb 1 - Sat, Feb 21

5:05 am - 11:47 pm

STL

UIO

17h 42m1 stop

7:04 am - 11:59 pm

UIO

STL

17h 55m1 stop

$689American Airlines

Fri, Jan 30 - Fri, Feb 6

8:13 am - 11:47 pm

STL

UIO

14h 34m2 stops

12:45 am - 12:29 pm

UIO

STL

12h 44m2 stops

$709American Airlines

Sun, Feb 1 - Sat, Feb 21

6:00 am - 9:35 pm

STL

UIO

14h 35m1 stop

11:45 pm - 5:42 pm

UIO

STL

18h 57m1 stop

$711LATAM Airlines

Sun, Feb 1 - Sun, Feb 22

6:00 am - 5:35 pm

STL

GYE

34h 35m2 stops

8:34 am - 10:00 pm

GYE

STL

14h 26m2 stops

$718United Airlines

Mon, Feb 2 - Thu, Feb 5

3:45 pm - 5:17 am

STL

UIO

36h 32m2 stops

6:45 pm - 11:36 pm

UIO

STL

29h 51m2 stops

$732LATAM Airlines

Sun, Feb 1 - Sun, Feb 22

LATAM Airlines flights from St. Louis to Ecuador

Our best LATAM Airlines deals on St. Louis to Ecuador flight tickets

LATAM Airlines

Feb 1

STL6:00 amLambert-St Louis

14h 35m

1 stop

UIO9:35 pmQuito Mariscal Sucr

Feb 22

UIO11:45 pmQuito Mariscal Sucr

18h 57m

1 stop

STL5:42 pmLambert-St Louis

$711

Find similar

LATAM Airlines

Feb 1

STL3:45 pmLambert-St Louis

36h 32m

2 stops

UIO5:17 amQuito Mariscal Sucr

Feb 22

UIO6:45 pmQuito Mariscal Sucr

29h 51m

2 stops

STL11:36 pmLambert-St Louis

$732

Find similar

LATAM Airlines

Jun 15

STL9:00 amLambert-St Louis

14h 00m

2 stops

UIO11:00 pmQuito Mariscal Sucr

Jun 20

UIO7:06 amQuito Mariscal Sucr

25h 01m

2 stops

STL8:07 amLambert-St Louis

$915

Find similar

United Airlines flights from St. Louis to Ecuador

Our best United Airlines deals on St. Louis to Ecuador flight tickets

United Airlines

Jan 30

STL6:00 amLambert-St Louis

13h 46m

2 stops

GYE8:46 pmGuayaquil Jose Joaquin de Olmedo

Feb 6

GYE2:35 pmGuayaquil Jose Joaquin de Olmedo

43h 47m

2 stops

STL9:22 amLambert-St Louis

$607

Find similar

United Airlines

Jan 30

STL6:00 amLambert-St Louis

17h 30m

1 stop

UIO12:30 amQuito Mariscal Sucr

Feb 5

UIO1:35 amQuito Mariscal Sucr

13h 55m

2 stops

STL2:30 pmLambert-St Louis

$639

Find similar

United Airlines

Feb 2

STL6:00 amLambert-St Louis

34h 35m

2 stops

GYE5:35 pmGuayaquil Jose Joaquin de Olmedo

Feb 5

GYE8:34 amGuayaquil Jose Joaquin de Olmedo

14h 26m

2 stops

STL10:00 pmLambert-St Louis

$718

Find similar

Fly from

Fly to

Route

Depart

Return

Price

St. LouisGuayaquil

STL - GYE

STLGYE

Lambert-St Louis

Fri 1/30

6:00 am-8:46 pm

2 stops13h 46m

Guayaquil Jose Joaquin de Olmedo

Fri 2/6

2:35 pm-9:22 am

2 stops43h 47m

$607

St. LouisGuayaquil

STL - GYE

STLGYE

Lambert-St Louis

Fri 1/30

6:02 pm-11:22 pm

1 stop28h 20m

Guayaquil Jose Joaquin de Olmedo

Fri 2/6

7:15 am-11:59 pm

1 stop17h 44m

$616

St. LouisGuayaquil

STL - GYE

STLGYE

Lambert-St Louis

Fri 1/30

6:02 pm-11:22 pm

1 stop28h 20m

Guayaquil Jose Joaquin de Olmedo

Fri 2/6

7:15 am-11:12 pm

2 stops16h 57m

$620

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Fri 1/30

6:00 am-12:30 am

1 stop17h 30m

Quito Mariscal Sucr

Thu 2/5

1:35 am-2:30 pm

2 stops13h 55m

$639

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Sun 2/1

7:15 am-11:47 pm

2 stops15h 32m

Quito Mariscal Sucr

Sat 2/21

12:45 am-10:26 am

1 stop10h 41m

$676

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Fri 1/30

5:05 am-11:47 pm

1 stop17h 42m

Quito Mariscal Sucr

Fri 2/6

7:04 am-11:59 pm

1 stop17h 55m

$689

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Sun 2/1

8:13 am-11:47 pm

2 stops14h 34m

Quito Mariscal Sucr

Sat 2/21

12:45 am-12:29 pm

2 stops12h 44m

$709

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Sun 2/1

6:00 am-9:35 pm

1 stop14h 35m

Quito Mariscal Sucr

Sun 2/22

11:45 pm-5:42 pm

1 stop18h 57m

$711

St. LouisGuayaquil

STL - GYE

STLGYE

Lambert-St Louis

Mon 2/2

6:00 am-5:35 pm

2 stops34h 35m

Guayaquil Jose Joaquin de Olmedo

Thu 2/5

8:34 am-10:00 pm

2 stops14h 26m

$718

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Sun 2/1

3:45 pm-5:17 am

2 stops36h 32m

Quito Mariscal Sucr

Sun 2/22

6:45 pm-11:36 pm

2 stops29h 51m

$732

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

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

Prices

Airlines

What is the cheapest day to depart on your flight to Ecuador?

The cheapest day to depart from St. Louis to Ecuador is on a Tuesday. Travelers who choose to depart for Ecuador on a Tuesday will often find tickets for as low as $549. If your travel schedule is flexible, try to avoid departing on a Friday because tickets tend to average around $862. These prices are subject to change though, so be sure to set up a Price Alert for flights to Ecuador.

What is the cheapest time of day to depart on your flight to Ecuador?

Flying to Ecuador from St. Louis in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $656 when looking at flights departing in the afternoon. Flights to Ecuador are more costly in the morning, with an average ticket price of $689. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

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

You could potentially save up to 6% on your flight if you consider stops on a St. Louis to Ecuador flight.

Cheap St. Louis to Ecuador flight deals and tips

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

Fastest flight time	13h 46m
Direct flights	None

The fastest flight from St. Louis to Ecuador takes 13h 46m

There are no direct flights from St. Louis to Ecuador. There are no popular flight routes from St. Louis to Ecuador.

Search flight deals

When did momondo last update prices for flights from Lambert-St Louis Airport to Ecuador?
Prices for flights from Lambert-St Louis Airport to Ecuador were last updated today.
How many operators does momondo search for flights from Lambert-St Louis Airport to Ecuador?
As of December 2025, there are 4 operators available to choose from for flights from Lambert-St Louis Airport to Ecuador.
How old do you have to be to fly from Lambert-St Louis Airport to Ecuador?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Ecuador.
What documentation or ID do you need to fly to Ecuador?
The necessary travel and health documents for your Ecuador 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.

Best airlines flying from St. Louis to Ecuador

Compare and see reviews for airlines that fly from St. Louis to Ecuador with momondo

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $516	Free Cancellation	Rating 7.2 11,054 reviews	Search American Airlines flights
United Airlines	PriceFrom $634	Free Cancellation	Rating 7.4 9,095 reviews	Search United Airlines flights
Delta	PriceFrom $661	Free Cancellation	Rating 7.9 8,008 reviews	Search Delta flights
LATAM Airlines	PriceFrom $664	Free Cancellation	Rating 7.5 1,893 reviews	Search LATAM Airlines flights

Why use momondo?

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

Finding the right flight to Ecuador 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 Ecuador quick and easy, saving you time and money.

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

Yes. momondo enables you to select and highlight flights to Ecuador from St. Louis with this policy.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Ecuador from St. Louis.

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

Yes. momondo can track prices for St. Louis to Ecuador flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.