$296 Find Cheap Flights from St. Louis to Ecuador

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Ecuador departing on 7/20. 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

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Cheap Flights from St. Louis to Ecuador

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Quito
Quito1 stop$687
Guayaquil
Guayaquil1 stop$798
Baltra
Baltra2 stops$1,714
Quito
Quito1 stop$687
Guayaquil
Guayaquil1 stop$798
Baltra
Baltra2 stops$1,714

Book Cheap St. Louis to Ecuador Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Ecuador 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 St. Louis to Ecuador

Tue, Sep 1 - Mon, Sep 14
United Airlines Logo
3:13 pm - 11:25 pm
STL
-
UIO
8h 12m
1 stop
United Airlines Logo
7:25 am - 10:30 pm
UIO
-
STL
15h 05m
1 stop
$687United Airlines
Thu, Aug 27 - Thu, Sep 10
Delta Logo
6:05 am - 7:05 pm
STL
-
UIO
13h 00m
2 stops
Delta Logo
9:00 am - 11:37 pm
UIO
-
STL
14h 37m
2 stops
$692Delta
Sun, Aug 30 - Wed, Sep 9
Delta Logo
3:39 pm - 6:59 pm
STL
-
UIO
27h 20m
1 stop
Delta Logo
12:59 am - 2:38 pm
UIO
-
STL
13h 39m
1 stop
$696Delta
Thu, Oct 22 - Sun, Oct 25
American Airlines Logo
5:33 am - 1:33 pm
STL
-
GYE
8h 00m
1 stop
American Airlines Logo
8:25 am - 11:15 pm
GYE
-
STL
14h 50m
1 stop
$798American Airlines
Thu, Oct 22 - Sun, Oct 25
American Airlines Logo
5:33 am - 1:33 pm
STL
-
GYE
8h 00m
1 stop
American Airlines Logo
8:25 am - 11:09 pm
GYE
-
STL
14h 44m
2 stops
$803American Airlines
Mon, Jun 15 - Sat, Jun 20
Multiple Airlines Logo
2:15 pm - 11:30 pm
STL
-
GYE
33h 15m
3 stops
Multiple Airlines Logo
10:05 am - 12:21 pm
GYE
-
STL
26h 16m
3 stops
$1,250Multiple Airlines
Mon, Jun 15 - Fri, Jun 19
Multiple Airlines Logo
2:15 pm - 8:55 am
STL
-
GYE
18h 40m
2 stops
Multiple Airlines Logo
3:30 am - 12:21 pm
GYE
-
STL
32h 51m
3 stops
$1,292Multiple Airlines
Fri, Nov 13 - Sat, Nov 21
LATAM Airlines Logo
4:13 pm - 2:15 pm
STL
-
GPS
22h 02m
2 stops
LATAM Airlines Logo
2:55 pm - 5:06 pm
GPS
-
STL
50h 11m
2 stops
$1,714LATAM Airlines
Fri, Nov 13 - Fri, Nov 20
LATAM Airlines Logo
4:13 pm - 11:07 am
STL
-
GPS
18h 54m
2 stops
LATAM Airlines Logo
12:21 pm - 5:06 pm
GPS
-
STL
28h 45m
2 stops
$1,725LATAM Airlines
Fri, Nov 13 - Fri, Nov 20
Avianca Logo
4:30 pm - 12:20 pm
STL
-
GPS
67h 50m
3 stops
Avianca Logo
1:55 pm - 9:42 am
GPS
-
STL
19h 47m
3 stops
$2,558Avianca
Booking Insights

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

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from St. Louis to Ecuador, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from St. Louis to Ecuador is October, when tickets cost $0 (return) on average. On the other hand, the most expensive months are June and July, when the average cost of round-trip tickets is $818 and $746 respectively.

Good to know

Low seasonMay
Cheapest flight$296
Best time to beat the crowds with an average 22% drop in price.
Most popular time to fly with an average 2% increase in price.
Flight from St. Louis to Quito

FAQs - booking Ecuador flights

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

    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 from St. Louis to Ecuador.

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

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

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

    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 from St. Louis to Ecuador 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 from St. Louis to Ecuador?

    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 from St. Louis to Ecuador up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

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

 
Need help choosing which airline to fly with from St. Louis to Ecuador? 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 8452 reviews
8.5Crew
7.8Comfort
7.8Entertainment
7.2Food
8.1Boarding
Airline reviews

I continue to be satisfied with Delta’s excellent service out of LGA. The digit id works well and gets me through security in no time. Whenever possible, I choose Delta.

10.0 Excellentangela, May 2026
LGA - PBI
Read more Delta reviews

I continue to be satisfied with Delta’s excellent service out of LGA. The digit id works well and gets me through security in no time. Whenever possible, I choose Delta.

Was revoked with Jet Blue due to delay from Kenya Air

The Boarding process was great. Particularly since my wife and I require assistance. The flight attendants were amazing. We travel frequently; they honestly were a cut above. 😀

Enjoyed it very much. Especially liked the free WiFi that Delta offers.

Smooth flight. Left on time, and got in 15 minutes early. Onboard video was great

For some reason, TSA Atlanta didn’t have my bag on the flight on time and they don’t have to provide Delta a reason for that.

WiFi didn’t work on two of four planes. Flight attendants were not overly friendly or welcoming. Planes were extremely slow to board and deplane.

Delta does a great job with entertainment and free wifi. I can still be in touch with my colleagues while in the air.

Aside from a completely packed plane, I really have no complaints.

Bus to plane was delayed for no apparent reason and our luggage was still on the belt when they shut it off. Took about 20 minutes to turn it back on to get our luggage.

The wifi experience is awful. I had to try again and again, taking over 30 minutes, to connect to the wifi. I had to watch the same two ads over and over until I was finally successful. Once connected, it was anything but "high speed" and disconnected at least three times during the flight.

Fine. Nothing to write home about. The plane left on time, and arrived on time.

I was downgraded from first class to coach due to an airplane change. They pulled me out of line and I was the very last person to board the plane stuck in the middle seat with no overhead place to put my carry-.on. Very poor customer service.

Seat comfort was poor (no lumbar or lower back support).

The airplane seats were spacious and comfortable, and the flight attendants were friendly and attentive. The food was delicious like never before. The blankets and toiletries were thoughtfully provided. The captain's navigation was steady and reliable. In short, having flown with Starlux, I won't consider any other airline next time.

STOP MAKING THE SEATING SO CRAMPED. WE NEED A PASSENGER BILL OF RIGHTS!

The passenger in front of of me reclined their seat back all the way the entire flight. Their headrest was in my face the entire flight! I barely had room for the little plastic cup of water to fit on my tray table; can you make the seats and space between the rows any smaller??? You can’t even get up to use the restroom! Worst flight I’ve had in a very long time!

We had several flights and they were all on-time and flawless

My Frequent Flyer nber wasn't put on as I was told it was..... This resulted in a last group boarding and no priority tags on My bags.

Premium Economy Good crew, good service, excellent food. Seat back screen just not bright enough.

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

Information on your arrival and departure airports