Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from St. Louis to Ecuador from $302

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 8/3. 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.
Delta Logo
7:00 am - 6:59 pm
STL
-
UIO
11h 59m
1 stop
Delta Logo
12:59 am - 7:44 pm
UIO
-
STL
18h 45m
1 stop
$687Delta
Tue, Sep 1 - Wed, Sep 16
United Airlines Logo
5:30 pm - 5:00 am
STL
-
UIO
11h 30m
2 stops
United Airlines Logo
7:25 am - 11:57 am
UIO
-
STL
28h 32m
2 stops
$692United Airlines
Mon, Aug 31 - Mon, Sep 14
United Airlines Logo
8:35 am - 11:25 pm
STL
-
UIO
14h 50m
1 stop
United Airlines Logo
7:25 am - 10:10 am
UIO
-
STL
26h 45m
1 stop
$697United Airlines
Mon, Aug 31 - Mon, Sep 14
United Airlines Logo
8:35 am - 11:25 pm
STL
-
UIO
14h 50m
1 stop
United Airlines Logo
12:35 am - 6:32 pm
UIO
-
STL
17h 57m
1 stop
$707United Airlines
Sun, Aug 30 - Wed, Sep 16
United Airlines Logo
5:30 pm - 11:25 pm
STL
-
UIO
29h 55m
2 stops
United Airlines Logo
12:35 am - 3:38 pm
UIO
-
STL
15h 03m
2 stops
$709United Airlines
Sun, Aug 30 - Tue, Sep 15
United Airlines Logo
7:25 am - 11:25 pm
STL
-
UIO
16h 00m
2 stops
United Airlines Logo
7:25 am - 11:57 am
UIO
-
STL
28h 32m
2 stops
$712United Airlines
Sat, Aug 29 - Mon, Sep 14
American Airlines Logo
11:35 am - 9:39 pm
STL
-
GYE
10h 04m
1 stop
American Airlines Logo
6:00 am - 1:23 pm
GYE
-
STL
31h 23m
1 stop
$739American Airlines
Thu, Aug 27 - Sun, Sep 13
American Airlines Logo
6:00 am - 9:39 pm
STL
-
GYE
15h 39m
2 stops
American Airlines Logo
6:00 am - 1:23 pm
GYE
-
STL
31h 23m
1 stop
$743American Airlines
Thu, Aug 27 - Sun, Sep 13
LATAM Airlines Logo
10:51 am - 12:00 pm
STL
-
GPS
26h 09m
3 stops
LATAM Airlines Logo
12:00 pm - 11:58 pm
GPS
-
STL
34h 58m
3 stops
$2,496LATAM Airlines
Wed, Jul 29 - Wed, Aug 5
LATAM Airlines Logo
6:58 pm - 1:30 pm
STL
-
GPS
43h 32m
2 stops
LATAM Airlines Logo
12:00 pm - 9:54 am
GPS
-
STL
20h 54m
3 stops
$3,159LATAM Airlines
Wed, Jul 29 - Wed, Aug 5

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

Delta flights from St. Louis to Ecuador

Our best Delta deals on St. Louis to Ecuador flight tickets
Delta
Sep 1
STL7:00 amLambert-St Louis
11h 59m
1 stop
UIO6:59 pmQuito Mariscal Sucr
Sep 16
UIO12:59 amQuito Mariscal Sucr
18h 45m
1 stop
STL7:44 pmLambert-St Louis
$687
Delta
Sep 4
STL3:39 pmLambert-St Louis
27h 20m
1 stop
UIO6:59 pmQuito Mariscal Sucr
Sep 16
UIO7:55 amQuito Mariscal Sucr
15h 41m
2 stops
STL11:36 pmLambert-St Louis
$716
Delta
Sep 4
STL3:39 pmLambert-St Louis
27h 20m
1 stop
UIO6:59 pmQuito Mariscal Sucr
Sep 15
UIO9:00 amQuito Mariscal Sucr
14h 36m
2 stops
STL11:36 pmLambert-St Louis
$721

United Airlines flights from St. Louis to Ecuador

Our best United Airlines deals on St. Louis to Ecuador flight tickets
United Airlines
Aug 31
STL5:30 pmLambert-St Louis
11h 30m
2 stops
UIO5:00 amQuito Mariscal Sucr
Sep 14
UIO7:25 amQuito Mariscal Sucr
28h 32m
2 stops
STL11:57 amLambert-St Louis
$692
United Airlines
Aug 31
STL8:35 amLambert-St Louis
14h 50m
1 stop
UIO11:25 pmQuito Mariscal Sucr
Sep 14
UIO7:25 amQuito Mariscal Sucr
26h 45m
1 stop
STL10:10 amLambert-St Louis
$697
United Airlines
Aug 30
STL8:35 amLambert-St Louis
14h 50m
1 stop
UIO11:25 pmQuito Mariscal Sucr
Sep 16
UIO12:35 amQuito Mariscal Sucr
17h 57m
1 stop
STL6:32 pmLambert-St Louis
$707

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 June 17, 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
Quickest round-trip

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Tue 9/1

7:00 am-6:59 pm

1 stop11h 59m

Quito Mariscal Sucr

Wed 9/16

12:59 am-7:44 pm

1 stop18h 45m

$687

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Mon 8/31

5:30 pm-5:00 am

2 stops11h 30m

Quito Mariscal Sucr

Mon 9/14

7:25 am-11:57 am

2 stops28h 32m

$692

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Mon 8/31

8:35 am-11:25 pm

1 stop14h 50m

Quito Mariscal Sucr

Mon 9/14

7:25 am-10:10 am

1 stop26h 45m

$697

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Sun 8/30

8:35 am-11:25 pm

1 stop14h 50m

Quito Mariscal Sucr

Wed 9/16

12:35 am-6:32 pm

1 stop17h 57m

$707

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Sun 8/30

5:30 pm-11:25 pm

2 stops29h 55m

Quito Mariscal Sucr

Tue 9/15

12:35 am-3:38 pm

2 stops15h 03m

$709

St. LouisQuito

STL - UIO

STLUIO

Lambert-St Louis

Sat 8/29

7:25 am-11:25 pm

2 stops16h 00m

Quito Mariscal Sucr

Mon 9/14

7:25 am-11:57 am

2 stops28h 32m

$712

St. LouisGuayaquil

STL - GYE

STLGYE

Lambert-St Louis

Thu 8/27

11:35 am-9:39 pm

1 stop10h 04m

Guayaquil Jose Joaquin de Olmedo

Sun 9/13

6:00 am-1:23 pm

1 stop31h 23m

$739

St. LouisGuayaquil

STL - GYE

STLGYE

Lambert-St Louis

Thu 8/27

6:00 am-9:39 pm

2 stops15h 39m

Guayaquil Jose Joaquin de Olmedo

Sun 9/13

6:00 am-1:23 pm

1 stop31h 23m

$743

St. LouisBaltra

STL - GPS

STLGPS

Lambert-St Louis

Wed 7/29

10:51 am-12:00 pm

3 stops26h 09m

Baltra

Wed 8/5

12:00 pm-11:58 pm

3 stops34h 58m

$2,496

St. LouisBaltra

STL - GPS

STLGPS

Lambert-St Louis

Wed 7/29

6:58 pm-1:30 pm

2 stops43h 32m

Baltra

Wed 8/5

12:00 pm-9:54 am

3 stops20h 54m

$3,159

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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

8h 59m

Direct flights

None
The fastest flight from St. Louis to Ecuador takes 8h 59m
There are no direct flights from St. Louis to Ecuador. There are no popular flight routes from St. Louis to Ecuador.
Search flight deals

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 $516Free CancellationRating
7.1
11,670 reviews
Search American Airlines flights
DeltaPriceFrom $661Free CancellationRating
7.8
8,406 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.

An easier way to manage your Ecuador 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
Fri 7/17
Fri 7/24
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Ecuador

Popular cities in Ecuador

Popular flights according to clicks in the last 7 days on momondo
Flights to Quitofrom $404
Flights to Guayaquilfrom $296
Flights to Cuencafrom $387
Flights to Baltrafrom $476
Flights to San Cristobalfrom $443
Flights to Mantafrom $453
Flights to Lojafrom $1,157
Flights to Esmeraldas