$219 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 5/15. 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
Quito2 stops$546
Guayaquil
Guayaquil2 stops$706
Baltra
Baltra3 stops$1,580
Quito
Quito2 stops$546
Guayaquil
Guayaquil2 stops$706
Baltra
Baltra3 stops$1,580

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

Thu, Apr 9 - Wed, Apr 15
Multiple Airlines Logo
4:59 pm - 8:40 am
STL
-
UIO
15h 41m
2 stops
Multiple Airlines Logo
3:30 am - 11:19 pm
UIO
-
STL
19h 49m
2 stops
$546Multiple Airlines
Thu, Apr 9 - Wed, Apr 15
Multiple Airlines Logo
4:59 pm - 5:40 pm
STL
-
UIO
24h 41m
2 stops
Multiple Airlines Logo
3:30 am - 6:50 am
UIO
-
STL
27h 20m
3 stops
$555Multiple Airlines
Mon, Apr 27 - Wed, May 6
LATAM Airlines Logo
9:59 am - 6:59 pm
STL
-
UIO
9h 00m
1 stop
LATAM Airlines Logo
6:50 pm - 9:44 am
UIO
-
STL
14h 54m
2 stops
$638LATAM Airlines
Wed, Apr 8 - Tue, Apr 14
United Airlines Logo
9:10 am - 11:25 pm
STL
-
UIO
14h 15m
2 stops
United Airlines Logo
12:35 am - 9:25 am
UIO
-
STL
8h 50m
1 stop
$646United Airlines
Sun, Apr 26 - Wed, May 6
LATAM Airlines Logo
9:59 am - 6:59 pm
STL
-
UIO
9h 00m
1 stop
LATAM Airlines Logo
6:50 pm - 9:44 am
UIO
-
STL
14h 54m
2 stops
$648LATAM Airlines
Mon, Apr 27 - Thu, May 7
Delta Logo
11:42 am - 4:43 am
STL
-
UIO
17h 01m
2 stops
Delta Logo
6:50 pm - 1:10 pm
UIO
-
STL
18h 20m
2 stops
$650Delta
Fri, May 15 - Thu, Aug 20
Delta Logo
6:00 am - 4:43 am
STL
-
UIO
22h 43m
2 stops
Delta Logo
6:50 pm - 12:53 pm
UIO
-
STL
18h 03m
2 stops
$682Delta
Wed, Apr 8 - Wed, Apr 15
American Airlines Logo
7:05 am - 9:12 pm
STL
-
GYE
14h 07m
2 stops
American Airlines Logo
6:05 am - 7:30 pm
GYE
-
STL
13h 25m
2 stops
$706American Airlines
Mon, Apr 6 - Mon, Apr 13
American Airlines Logo
11:22 am - 9:44 pm
STL
-
GYE
10h 22m
1 stop
American Airlines Logo
6:05 am - 10:07 pm
GYE
-
STL
16h 02m
2 stops
$853American Airlines
Sat, Feb 28 - Wed, Mar 4
United Airlines Logo
6:00 am - 11:42 pm
STL
-
GYE
16h 42m
2 stops
United Airlines Logo
12:20 pm - 10:16 pm
GYE
-
STL
34h 56m
2 stops
$913United 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 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 United Airlines ($646) and Delta ($650).

Good to know

Low seasonNovember
Cheapest flight$219
Best time to beat the crowds with an average 15% drop in price.
Most popular time to fly with an average 1% 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 3 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 8239 reviews
7.8Entertainment
8.1Boarding
7.9Comfort
7.2Food
8.5Crew
Airline reviews

2+hrs delay without any reason provided and a cramped flight

2.0 MediocreYogendra Kumar, Feb 2026
DTW - MDT
Read more Delta reviews

2+hrs delay without any reason provided and a cramped flight

We waited an hour on the runway to get a gate in Orlando

Flight was delayed by 3-hours and their fix was… complimentary pretzels.

Flight was delayed due to crew being not on time

Flight crew issues delayed my flight by 2 1/2 hours. Causing me to miss my connection.

The staff on board and gate was nice - a welcome change from the usual. We also arrived early, which was a great benefit, given that it takes 30 minutes plus to get bags at SRQ.

The staff was frielndly. The plane was terrible, it was too small and should be decommissioned. There were no back seat screens at all. The only beverages we had a choice from was coffee, tea or water. The only bathroom in the back was behind the flight attendant's jump seat and wasn't working. And I literally felt like I was sitting on top of the guy next to me. It was terribly hot in the plane and we had to sit on the tarmac in Chicago for 1/2 hour due to congestion in Mpls. Wouldn't they have know that before they even boarded us so that we could have sat in comfort in the terminal?

Never got on it. Was re-routed through Detroit and am still in airports 12 hours later waiting for my connecting plane to arrive.

Delta has too many delays now days. It is 1:06 am now. I was supposed to land in Norfolk at 10:30 pm. I got re-booked through Detroit and I’m still in Detroit. I hope to be landed in Norfolk by 3am. I’ve been in airports for 12 hours as of right now. There is a weather delay now but most delays lately have been maintenance.

Very Very late. Subsequent flights left an hour before ours

Deleted flight made me loose my connection flight now stuck in Atlanta for a day

Good check in process Poor information on payments at Lima airport

Apart of Sky miles delta. And they go everywhere in Brazil

Comfort in exit seat was excellent. FLight crew and flight were excellent. However exit seat tray table was broken so could not use it. Entertainment monitor did not work at all despite attempts to reset it.

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....

Horrible. Got delayed many hours because their pilot wasn't trained for night landing at the airport and a rain delay made it a night landing. We have to wait hours for a qualified crew. They give us 12 dollar meal vouchers but most everything in the airport was closed and definitely more expensive than the vouchers.

I am an AA flyer for a very long time... AA has yet to disappoint.

Flight was delayed. Not much information on when the flight would take off. Eventually we were told it was maintenance. App was not giving updates.

Never ontime and always delays. Long waits for customer service and often app doesn’t work

Arriving plane went to wrong gate. Flight Attendant was late. Was in no Hurry when he arrived. Flight was fine. Plane had to wait 20 minutes to get assigned a gate due to designated gate tied up. barely connected.. Boarded extremely late on final leg of trip.

We arrived 25 minutes early only to be told our gate was occupied and so we sat for close to 30 minutes to pull into a gate. That’s not an early arrival!

Experience was great. The best part is the free Wi-Fi connection which helps me to work on the flight

The gate agent had a really bad attitude and refused to help me get on the standby list. She just handed me a card and said I needed to call a number. I asked her to help with the AA app on my phone and she just shrugged and said she didnt know. After a few phone calls, I eventually just went to a different gate agent on the other side of the terminal and got the help I needed.

The TSA check in took 1.5 hours to get through in Austin and I missed my flights back to DC

As previously stated the delay I experienced flying from Wichita to Chicago caused a host of issues. When I finally was able to be booked on the last remaining American flight from Chicago to Cincinnati, the gate changed four times with the last change occurring very near the scheduled boarding time. While I didn't have a problem moving from gate to gate, I did notice and make note of others that had mobility issues and had to move each time for the gate change.

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

Information on your arrival and departure airports