$274 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 1/25. 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$616
Guayaquil
Guayaquil1 stop$585
Baltra
Baltra3 stops$1,554
Quito
Quito1 stop$616
Guayaquil
Guayaquil1 stop$585
Baltra
Baltra3 stops$1,554

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

Wed, Feb 18 - Wed, Feb 25
American Airlines Logo
5:14 am - 10:41 pm
STL
-
GYE
16h 27m1 stop
American Airlines Logo
7:12 am - 11:56 pm
GYE
-
STL
17h 44m1 stop
$585American Airlines
Wed, Feb 18 - Wed, Feb 25
United Airlines Logo
6:00 am - 11:42 pm
STL
-
GYE
16h 42m2 stops
United Airlines Logo
2:35 pm - 10:14 pm
GYE
-
STL
32h 39m2 stops
$588United Airlines
Wed, Feb 18 - Wed, Feb 25
American Airlines Logo
6:06 am - 10:41 pm
STL
-
GYE
15h 35m2 stops
American Airlines Logo
7:12 am - 5:40 pm
GYE
-
STL
11h 28m1 stop
$590American Airlines
Thu, Apr 9 - Mon, Apr 20
United Airlines Logo
10:10 am - 11:25 pm
STL
-
UIO
13h 15m1 stop
United Airlines Logo
7:25 am - 10:28 pm
UIO
-
STL
15h 03m1 stop
$616United Airlines
Sun, Apr 5 - Thu, Apr 16
LATAM Airlines Logo
12:04 pm - 4:43 am
STL
-
UIO
16h 39m2 stops
LATAM Airlines Logo
7:06 am - 11:33 pm
UIO
-
STL
16h 27m2 stops
$620LATAM Airlines
Thu, Apr 16 - Mon, Apr 27
United Airlines Logo
6:00 am - 11:25 pm
STL
-
UIO
17h 25m1 stop
United Airlines Logo
7:25 am - 9:25 am
UIO
-
STL
26h 00m1 stop
$625United Airlines
Thu, Apr 2 - Mon, Apr 13
LATAM Airlines Logo
6:04 am - 4:43 am
STL
-
UIO
22h 39m2 stops
LATAM Airlines Logo
6:50 pm - 10:34 am
UIO
-
STL
15h 44m2 stops
$630LATAM Airlines
Sat, Apr 4 - Mon, Apr 13
Delta Logo
5:00 pm - 6:59 pm
STL
-
UIO
25h 59m1 stop
Delta Logo
12:59 am - 10:34 am
UIO
-
STL
9h 35m1 stop
$634Delta
Sat, Apr 4 - Wed, Apr 15
Delta Logo
5:00 pm - 6:59 pm
STL
-
UIO
25h 59m1 stop
Delta Logo
6:50 pm - 10:34 am
UIO
-
STL
15h 44m2 stops
$638Delta
Wed, Feb 18 - Wed, Feb 25
Multiple Airlines Logo
5:00 pm - 1:40 am
STL
-
GYE
31h 40m2 stops
Multiple Airlines Logo
11:30 am - 11:59 pm
GYE
-
STL
37h 29m3 stops
$7,577Multiple Airlines
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.

Which airlines fly non-stop between St. Louis and Ecuador?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for round-trip flights from St. Louis to Ecuador.

There are 4 airlines that fly nonstop from St. Louis to Ecuador. They are: American Airlines, LATAM Airlines, Delta and United Airlines. The cheapest price of all airlines flying this route was found with American Airlines at $516 for a round-trip flight to Guayaquil (GYE). On average, United Airlines offers the best prices for nonstop flights between St. Louis and Ecuador.

Which airlines provide the cheapest flights from St. Louis to Ecuador?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from St. Louis to Ecuador were found on American Airlines ($585) and United Airlines ($588).

Good to know

Low seasonNovember
Cheapest flight$274
Best time to beat the crowds with an average 5% drop in price.
Most popular time to fly and prices are also 1% lower on average.
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 4 airlines serving 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 8018 reviews
8.1Boarding
8.5Crew
7.2Food
7.9Comfort
7.8Entertainment
Airline reviews

I really liked the legroom. I am 6’4”.a at For some reason our seats were not together and using the app to fix it didn’t work. Passengers were nice enough to move for us but you should absolutely ensure a parent sits with their child.

6.0 GoodJason, Jan 2026
BOS - SFO
Read more Delta reviews

I really liked the legroom. I am 6’4”.a at For some reason our seats were not together and using the app to fix it didn’t work. Passengers were nice enough to move for us but you should absolutely ensure a parent sits with their child.

Late delayed flight delays boarding and delays leaving and delays on arrival too. Cramped plane no room no food.

DTW line is too long. The flights from DTW to BWI are always delayed for unknown reasons.

Delta canceled our flight and we had to scramble to find another airline to get home. Phoenix is not a delta hub so they didn’t have another plane. It would have been a red eye though Salt Lake City. Getting in at 5am. No bueno.

This flight was no comparison to our prior flight. I'm thinking it all has to do with the age of the aircraft.

This flight was a first class choice and left much to be desired. Seat backs on seats were falling apart and torn. Seats actually didn't come to a "full & upright position". Pull out table was sprung. Not any significant leg room. All in all we were on an obviously older plane and felt overcharged for what we received as first class.

A 12 hour flight during the day with one real meal service - are you kidding? Also the breakfast was one of the worst and not what was listed

Flight was delayed several times. At one point, they "pulled back" 15 minutes from the delayed boarding and sent a text saying we would board sooner than previously advised. The flight then was delayed again. And when we boarded, there was an unspecified technical issue which had us waiting in the plane for about an hour.

Delta is a good airline. I've never had an issue with Delta. I'll continue to fly with them until they show me that I shouldn't.

The only thing nice I can say is the flight crew was really nice and apologetic about the situation. They shared as much information as they had and advised us on what we could do about missing connecting flights. The boarding process was so slow. The gate agent was working by herself and should have had someone working with her. It took almost an hour to board because she was trying to board a full flight of people and provide customer service to everyone who was flying standby and/or had questions. It was really chaotic. This didn't help the fact that we were delayed and folks were missing connections the longer it took.

We traveled with two young children, and it was not possible for our family to be seated together. No one offered help or assistance to organize seating so we could sit with our kids. In the end, we managed to find two seats in Economy so I could at least sit with one of them, even though I had originally paid for Comfort+. In summary, I had to downgrade my seat just to be able to sit with one of my children, which was very disappointing

I booked a flight through Kayak to Brazil I have traveled to Brazil several times before Kayak Delta or LATAM never mentioned during the booking or in the pre flight process that the visa requirements to visit Brazil have changed earlier this year. I was unaware of this change and as such never got a visa and was unable to fly from JFK to Sao Paulo Add to this that Delta allowed me to fly from Boston to JFK which they should not have as I didn’t have a visa. It has been a terrible experience and a huge loss of money

Latam may be the worst airline in the world, far worse than even the lowest of low cost airlines in the USA. I wasted hours trying to PAY THEM TO CHECK A BAG! Then they misled me at the terminal, sent me through the wrong security line, the list goes on and on... Just absolutely terrible in every way. Avoid at all costs.

Check in -- in business took over 30 mins as there was only one attendant. Boarding was also a mess. The seat was too narrow and was not working properly. Food was very bad and the entertainment very poor. Crew was very polite and helpful, in fairness.

The way the Pilot made all announcements, specially the way he congratulated the entire crew as the best team ever, making a comment that due to them they were able to shorter the delay to the destination. Amazing flight .

we were missing our luggage, trying to find someone to have any empathy was pretty much not happening....

The plane broke down at the Lima stopover and they offered to put me on a flight the be t day but I had to be back in LA that morning and so I had to buy another ticket from Avianca and United for $2k I asked LATAM for compensation and received none. Very bad experience

Really bad experience – delayed for 6 hours without any notice, no food or drinks provided, and stuck in the horrible Cartagena airport.

I’m entitled to a refund per LATAM due to the mid flight itinerary change and being stuck in São Paulo for 24 hours and needing to get a hotel. The airline was dismissive and of no help.

The flight was late. Please do not delay next time.

The staff was hospitable and professional. The seat had a bit of wear. The winner shade was stuck 1/4 open. I received the best of both worlds. The morning sun was able to come in and blind the screen i was trying to use while at the same time it was too low to look out and enjoy the view. Rather embarrassing for a 1st class ticket.

Perfect flight. Smooth flight. Arrived 20 minutes early at destination. Excellent service.

The flights were on time which was great give. It was holiday travel season and there’d been some weather issues. The only complaint and this is every time with United is the terrible seat design. The head rest is not built for comfort and having my neck bent forward for a cross country trip reminded me while I try not to take United flights as a rule.

I’m so sorry, I can’t remember her name, I believe it was Dimpti. She was stellar, also a mature Asian flight attendant, lots of flowers in her hair, just as amazing! But literally the crew was AWESOME . Only downside is there weren’t any charging outlets. Maybe I needed to ask a flight attendant , but it would’ve been nice to have one easily accessible.

The flight was delayed by two de-icings. The seatbelt did not work correctly. It did not stay tight.

Everything was absolutely wonderful from check in to baggage claim. Staff was very professional and sweet. Will definitely recommend United to family and friends.

Aircraft was noisy, old and never dimmed the lights on a night flight even on business class! I flew 17 times on United and probably another 40 on other airlines United USA /Europe flights were the worst to include luggage delayed once going to europe and once coming back

Check how old the airframe is, some older ones have inoperable seat back entertainment or power.

Sitting on the runway after we land for almost two hours! Not sure if we should blame United or Just Dumpy Vance.

Hotter than Hades in August. Why, why do crews think that in the winter when we are already dressed for cold weather we need a cabin that is 82 degrees. Even the vents were blowing hot air.

While I didn’t watch much tv I would have liked a few more options of TV series from Apple TV or hbo max ..

Everything about the flight was lovely. My only suggestion would be to offer a few more options of tv series from Apple TV or HBO.

Nothing to write home about, average flight experience. Seats were spacious enough, crew friendly enough. Loved the AA entertainment/wifi service.

Kayak was among the missing. There was not the usual advice regarding next gate after arriving in Dallas. No communication after the reminder to check in before the Moline flight. What happened?

They should have allowed for extra time to de-ice the plane before boarding passengers. This delayed us about 10-15 mins after we boarded. Overall experience was fine. Crew was friendly and on top of everything. We didn’t have any issues during the flight.

Experience was good. We were delayed in leaving by 15 mins because the flight was waiting on a family that was late in getting to the gate. Food and drink options were as expected. I highly recommend checking in ahead of time using the airline’s app so that it’s quicker to get your luggage tags as soon as you arrive at the terminal. No more waiting in long lines!

Overall experience was great. Flights were almost on time in departing and we arrived at our destination as scheduled. No issues with amenities or flight crew. Everything went well as as expected. Will fly again with American Airlines in the future!

We never made it due to delays on both ends. Gate attendant said it was mechanical but the system said otherwise, so no compensation. That’s not right.

Our flight from Eagle to Vail was delayed to the point we missed our connection to Savannah. Now we’re a family of 4 in a hotel room with luggage, no toiletries, no clean clothes. Gate attendant said the delay was mechanical but it was put in the system as something else so no compensation. That’s just wrong.

Crew were all friendly and helpful. It was a short flight so just a beverage service with a cookie. After we were boarded the plane took about 45 minutes to leave the gate but it was New Year’s Eve so not shocking there was some delay. Overall good experience and very grateful.

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

Information on your arrival and departure airports