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Cheap flights from St. Louis to Ecuador from $281

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Ecuador departing on 8/10. 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

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from St. Louis to Ecuador

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
6:00 am - 10:45 pm
STL
-
GYE
16h 45m
2 stops
American Airlines Logo
2:29 pm - 10:51 am
GYE
-
STL
20h 22m
2 stops
$571American Airlines
Thu, Oct 22 - Sun, Oct 25
American Airlines Logo
6:00 am - 10:45 pm
STL
-
GYE
16h 45m
2 stops
American Airlines Logo
2:29 pm - 5:26 pm
GYE
-
STL
26h 57m
1 stop
$610American Airlines
Thu, Oct 22 - Sun, Oct 25
LATAM Airlines Logo
6:00 am - 6:59 pm
STL
-
UIO
12h 59m
1 stop
LATAM Airlines Logo
9:00 am - 11:42 pm
UIO
-
STL
14h 42m
2 stops
$667LATAM Airlines
Wed, Sep 2 - Wed, Sep 9
Delta Logo
7:05 am - 6:59 pm
STL
-
UIO
11h 54m
1 stop
Delta Logo
12:59 am - 4:23 pm
UIO
-
STL
15h 24m
1 stop
$687Delta
Mon, Oct 5 - Mon, Oct 12
United Airlines Logo
3:12 pm - 11:25 pm
STL
-
UIO
8h 13m
1 stop
United Airlines Logo
12:35 am - 2:17 pm
UIO
-
STL
13h 42m
2 stops
$692United Airlines
Mon, Oct 5 - Wed, Oct 14
Delta Logo
6:54 pm - 6:59 pm
STL
-
UIO
24h 05m
1 stop
Delta Logo
12:59 am - 1:20 pm
UIO
-
STL
12h 21m
1 stop
$696Delta
Sun, Oct 4 - Tue, Oct 13
United Airlines Logo
6:15 am - 11:25 pm
STL
-
UIO
17h 10m
1 stop
United Airlines Logo
12:35 am - 2:10 pm
UIO
-
STL
13h 35m
1 stop
$707United Airlines
Sat, Oct 3 - Sun, Oct 11
GOL Logo
11:35 am - 9:39 pm
STL
-
GYE
10h 04m
1 stop
GOL Logo
6:00 am - 11:59 pm
GYE
-
STL
17h 59m
1 stop
$757GOL
Sun, Sep 6 - Mon, Sep 14
GOL Logo
11:35 am - 9:39 pm
STL
-
GYE
10h 04m
1 stop
GOL Logo
6:00 am - 11:59 pm
GYE
-
STL
17h 59m
1 stop
$758GOL
Sat, Sep 5 - Sat, Sep 12
LATAM Airlines Logo
11:00 am - 9:10 am
STL
-
GPS
23h 10m
3 stops
LATAM Airlines Logo
1:28 pm - 9:54 am
GPS
-
STL
19h 26m
3 stops
$2,033LATAM Airlines
Mon, Aug 17 - Mon, Aug 24

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United Airlines flights from St. Louis to Ecuador

Our best United Airlines deals on St. Louis to Ecuador flight tickets
United Airlines
Oct 5
STL3:12 pmLambert-St Louis
8h 13m
1 stop
UIO11:25 pmQuito Mariscal Sucr
Oct 14
UIO12:35 amQuito Mariscal Sucr
13h 42m
2 stops
STL2:17 pmLambert-St Louis
$692
United Airlines
Oct 3
STL6:15 amLambert-St Louis
17h 10m
1 stop
UIO11:25 pmQuito Mariscal Sucr
Oct 11
UIO12:35 amQuito Mariscal Sucr
13h 35m
1 stop
STL2:10 pmLambert-St Louis
$707
United Airlines
Oct 3
STL3:12 pmLambert-St Louis
8h 13m
1 stop
UIO11:25 pmQuito Mariscal Sucr
Oct 12
UIO7:00 amQuito Mariscal Sucr
14h 21m
2 stops
STL9:21 pmLambert-St Louis
$712

Delta flights from St. Louis to Ecuador

Our best Delta deals on St. Louis to Ecuador flight tickets
Delta
Oct 5
STL7:05 amLambert-St Louis
11h 54m
1 stop
UIO6:59 pmQuito Mariscal Sucr
Oct 12
UIO12:59 amQuito Mariscal Sucr
15h 24m
1 stop
STL4:23 pmLambert-St Louis
$687
Delta
Oct 4
STL6:54 pmLambert-St Louis
24h 05m
1 stop
UIO6:59 pmQuito Mariscal Sucr
Oct 13
UIO12:59 amQuito Mariscal Sucr
12h 21m
1 stop
STL1:20 pmLambert-St Louis
$696
Delta
Oct 4
STL6:54 pmLambert-St Louis
24h 05m
1 stop
UIO6:59 pmQuito Mariscal Sucr
Oct 14
UIO9:00 amQuito Mariscal Sucr
14h 48m
2 stops
STL11:48 pmLambert-St Louis
$700

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Ecuador 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 July 21, 2026.
Use the filters below to find and compare flights from St. Louis to Ecuador that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisGuayaquil

STL - GYE

STLGYE

Lambert-St Louis

Thu 10/22

6:00 am-10:45 pm

2 stops16h 45m

Guayaquil Jose Joaquin de Olmedo

Sun 10/25

2:29 pm-10:51 am

2 stops20h 22m

$571

St. LouisGuayaquil

STL - GYE

STLGYE

Lambert-St Louis

Thu 10/22

6:00 am-10:45 pm

2 stops16h 45m

Guayaquil Jose Joaquin de Olmedo

Sun 10/25

2:29 pm-5:26 pm

1 stop26h 57m

$610

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Wed 9/2

6:00 am-6:59 pm

1 stop12h 59m

Quito Mariscal Sucr

Wed 9/9

9:00 am-11:42 pm

2 stops14h 42m

$667

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Mon 10/5

7:05 am-6:59 pm

1 stop11h 54m

Quito Mariscal Sucr

Mon 10/12

12:59 am-4:23 pm

1 stop15h 24m

$687
Quickest round-trip

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Mon 10/5

3:12 pm-11:25 pm

1 stop8h 13m

Quito Mariscal Sucr

Wed 10/14

12:35 am-2:17 pm

2 stops13h 42m

$692

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Sun 10/4

6:54 pm-6:59 pm

1 stop24h 05m

Quito Mariscal Sucr

Tue 10/13

12:59 am-1:20 pm

1 stop12h 21m

$696

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Sat 10/3

6:15 am-11:25 pm

1 stop17h 10m

Quito Mariscal Sucr

Sun 10/11

12:35 am-2:10 pm

1 stop13h 35m

$707

St. LouisGuayaquil

STL - GYE

STLGYE

Lambert-St Louis

Sun 9/6

11:35 am-9:39 pm

1 stop10h 04m

Guayaquil Jose Joaquin de Olmedo

Mon 9/14

6:00 am-11:59 pm

1 stop17h 59m

$757

St. LouisGuayaquil

STL - GYE

STLGYE

Lambert-St Louis

Sat 9/5

11:35 am-9:39 pm

1 stop10h 04m

Guayaquil Jose Joaquin de Olmedo

Sat 9/12

6:00 am-11:59 pm

1 stop17h 59m

$758

St. LouisBaltra

STL - GPS

STLGPS

Lambert-St Louis

Mon 8/17

11:00 am-9:10 am

3 stops23h 10m

Baltra

Mon 8/24

1:28 pm-9:54 am

3 stops19h 26m

$2,033

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 resultsSorted by cheapest first
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See travel insights to Ecuador from

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

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

You could potentially save up to 5% 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

9h 44m

Direct flights

None
The fastest flight from St. Louis to Ecuador takes 9h 44m
There are no direct flights from St. Louis to Ecuador. There are no popular flight routes from St. Louis to Ecuador.
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Frequently asked questions about flying from St. Louis to Ecuador

  • 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?

  • 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 AirlinesPriceFrom $592Free CancellationRating
7.1
11,832 reviews
Search American Airlines flights
DeltaPriceFrom $687Free CancellationRating
7.8
8,473 reviews
Search Delta 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.

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Find better results for your trip to Ecuador

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