$697 Find Cheap Flights from Ecuador to St. Louis

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight to St. Louis departing on 4/13. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to St. Louis

 
These are the airlines KAYAK users have selected most often from within our search results for flights to St. Louis, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to St. Louis, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$697
United Airlines
Mon 4/13Tue 5/5
UIO - STL • 1 stop
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to St. Louis!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Ecuador to St. Louis

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ecuador to St. Louis that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Ecuador to St. Louis

Mon, Apr 13 - Tue, May 5
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
$697United Airlines
Wed, May 13 - Sat, Aug 15
United Airlines Logo
12:35 am - 10:48 am
UIO
-
STL
34h 13m
2 stops
United Airlines Logo
9:23 am - 5:00 am
STL
-
UIO
19h 37m
2 stops
$699United Airlines
Mon, Apr 13 - Tue, May 5
United Airlines Logo
12:35 am - 9:25 am
UIO
-
STL
8h 50m
1 stop
United Airlines Logo
9:14 am - 11:25 pm
STL
-
UIO
14h 11m
2 stops
$701United Airlines
Wed, Apr 1 - Sat, Apr 18
American Airlines Logo
6:30 am - 11:58 pm
UIO
-
STL
17h 28m
1 stop
American Airlines Logo
5:24 am - 10:24 pm
STL
-
UIO
17h 00m
1 stop
$708American Airlines
Sun, Jul 26 - Fri, Aug 14
United Airlines Logo
7:25 am - 5:49 pm
UIO
-
STL
10h 24m
1 stop
United Airlines Logo
6:15 am - 11:25 pm
STL
-
UIO
17h 10m
1 stop
$710United Airlines
Tue, May 26 - Tue, Jun 2
American Airlines Logo
11:59 pm - 10:34 am
UIO
-
STL
10h 35m
1 stop
American Airlines Logo
9:41 am - 11:58 pm
STL
-
UIO
14h 17m
2 stops
$711American Airlines
Wed, Apr 1 - Sat, Apr 18
American Airlines Logo
6:30 am - 11:58 pm
UIO
-
STL
17h 28m
1 stop
American Airlines Logo
9:10 am - 10:24 pm
STL
-
UIO
13h 14m
2 stops
$713American Airlines
Fri, Apr 3 - Fri, Apr 10
American Airlines Logo
6:30 am - 11:58 pm
UIO
-
STL
17h 28m
1 stop
American Airlines Logo
5:24 am - 10:24 pm
STL
-
UIO
17h 00m
1 stop
$719American Airlines
Sat, Jul 25 - Tue, Aug 11
Delta Logo
6:50 pm - 3:58 pm
UIO
-
STL
21h 08m
2 stops
Delta Logo
9:00 am - 4:43 am
STL
-
UIO
19h 43m
2 stops
$722Delta
Fri, Apr 3 - Fri, Apr 10
American Airlines Logo
6:30 am - 11:58 pm
UIO
-
STL
17h 28m
1 stop
American Airlines Logo
7:05 am - 10:24 pm
STL
-
UIO
15h 19m
2 stops
$724American Airlines
Booking Insights

KAYAK's insights & trends for flights to St. Louis

Get data-powered insights and trends for flights to St. Louis to help you find the cheapest flights, the best time to fly and much more.

How long is the flight to St. Louis?

The duration of your flight to St. Louis depends on your departure and arrival airports. Obviously any flights that include a layover will also be longer. The most popular route to St. Louis on KAYAK is from Quito, which takes 15h 44m.

How many direct flights to St. Louis are there each day?

There are around 329 direct flights from within Ecuador to St. Louis every day. Most flights depart in the morning, with 7:00 am the most common departure time and 45% of flights departing in the morning.

Good to know

Low seasonDecember
Cheapest flight$697
Best time to beat the crowds with an average 5% drop in price.
Most popular time to fly and prices are also 5% lower on average.
Flight from Quito to St. Louis

FAQs - booking St. Louis flights

  • How far is Lambert-St Louis Airport from central St. Louis?

    Central St. Louis is 13 miles away from Lambert-St Louis Airport.

  • What is the name of St. Louis’s airport?

    All flights to St. Louis land at Lambert-St Louis Airport. The airport code is STL,and it can also be referred to as Lambert Field, Lambert-St Louis, St. Louis Lambert, or St. Louis Lambert Intl.

  • How does KAYAK find such low prices on flights to St. Louis?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights to St. Louis.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to St. Louis?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Louis is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights to St. Louis?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to St. Louis with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to St. Louis?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • How many direct flights to St. Louis are there each week?

    Each week there are around 2,302 direct flights from within Ecuador to St. Louis. The most common day for departures is Thursday, with 15% of flights taking off on this day.

Top tips for finding cheap flights to St. Louis

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest St. Louis flight deals.

Reviews of the top airline flying from Ecuador to St. Louis

 
See real verified KAYAK customer reviews for airlines flying to St. Louis. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Ecuador to St. Louis. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to St. Louis? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8207 reviews
8.5Crew
8.1Boarding
7.8Entertainment
7.2Food
7.9Comfort
Airline reviews

First flight out and was 85 minutes delayed. Notification came out way too late

4.0 OkayJason, Feb 2026
SEA - SLC
Read more Delta reviews

First flight out and was 85 minutes delayed. Notification came out way too late

Delta flights recently are always delayed AND at jfk tney get the gates further away (need To walk 20’ to get to them/all the way at the end of the terminal). Not sure whats happening but price doesnt match experience!

Boarding was efficient and smooth. Departure time was on time. Arrival to Detroit was early. Average food . Average crew service Very average cabin comfort. Nothing spectacular one way ir another, except for the excellent on time performance.

Everything I mentioned earlier - the airbus was more comfortable indeed and the experience was further enhanced.

Delta continues to set the benchmark for traveler-friendly service with minimal disruption and clear communication within the mainland US (coast to coast). I am consistently pleased to be a Delta customer, and this experience once again met my expectations. There was a brief delay departing from MIA due to a technical issue that required the aircraft to return to the gate. However, the situation was handled professionally and transparently. Fortunately, my planned layover allowed ample buffer time, so the adjustment caused no stress. Overall, another smooth and reassuring experience.

Good experience and the flight landed early. There was no food I had or entertainment.

Flight was delayed and no reasons provided. After the passengers were boarded, the crew made announcement that the captain has jot arrived and he would take another 15 mins. All passengers patiently sat until the captain came and started. Terrible experience!

Flight was delayed. No information on why it was delayed. After we boarded the flight, , the crew made announcement that the captain hs not arrived and he will take 15 mins more to arrive. Passengers were just sitting patiently for the captain to arrive and start, Terrible experience.

Awful - both legs. The check in was awful, getting on the plane required walking down a spiral staircase (dangerous), then taking a bus about 5 miles out from the terminal. The seat was broken (I was in business), there was no internet during the flight (both legs). The aircraft was very old. I saw rust in some place, tape holding things up in the bathroom. This was an unacceptable experience for such a long haul flight.

Totally worth the miles to upgrade to Delta Comfort. Plenty of legroom.

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
O'Fallon
Wentzville
Farmington
Eureka
Litchfield
Grafton
Shrewsbury
Glencoe

Everything you need to know for your flight to St. Louis

Information on the airport you'll fly into in St. Louis