STL - UIO

$585 Find Cheap Flights from St. Louis to Quito

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 Quito departing on 2/25. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Quito

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

Cheapest round-trip
$636
Typical prices: $769-$904
American Airlines
Thu 5/14Tue 5/26
STL - UIO • 1 stop
Cheapest one-way
$585
United Airlines
Wed 2/25
STL - UIO • 1 stop
Top airlines
American Airlines
Cheapest • from $636 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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Booking Insights
Flight Deals

Cheap Flights from St. Louis to Quito (STL-UIO)

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

Thu, May 14 - Tue, May 26
American Airlines Logo
11:06 am - 10:24 pm
STL
-
UIO
11h 18m
1 stop
American Airlines Logo
11:59 pm - 10:34 am
UIO
-
STL
10h 35m
1 stop
$636American Airlines
Wed, Apr 1 - Fri, Apr 10
LATAM Airlines Logo
10:12 am - 6:59 pm
STL
-
UIO
8h 47m
1 stop
LATAM Airlines Logo
6:50 pm - 12:07 pm
UIO
-
STL
17h 17m
2 stops
$638LATAM Airlines
Thu, May 14 - Tue, May 26
American Airlines Logo
5:24 am - 10:24 pm
STL
-
UIO
17h 00m
1 stop
American Airlines Logo
11:59 pm - 5:20 pm
UIO
-
STL
17h 21m
2 stops
$640American Airlines
Wed, Apr 1 - Thu, Apr 9
Multiple Airlines Logo
6:00 am - 11:25 pm
STL
-
UIO
17h 25m
1 stop
Multiple Airlines Logo
12:35 am - 9:25 am
UIO
-
STL
8h 50m
1 stop
$642Multiple Airlines
Wed, Apr 1 - Thu, Apr 9
United Airlines Logo
11:15 am - 11:25 pm
STL
-
UIO
12h 10m
2 stops
United Airlines Logo
12:35 am - 9:08 pm
UIO
-
STL
20h 33m
2 stops
$650United Airlines
Thu, Feb 26 - Thu, Mar 5
LATAM Airlines Logo
6:00 am - 11:00 pm
STL
-
UIO
16h 00m
2 stops
LATAM Airlines Logo
7:00 pm - 11:02 am
UIO
-
STL
17h 02m
2 stops
$729LATAM Airlines
Wed, Mar 4 - Sun, Mar 8
Delta Logo
7:10 am - 9:35 pm
STL
-
UIO
13h 25m
1 stop
Delta Logo
11:45 pm - 3:13 pm
UIO
-
STL
15h 28m
1 stop
$743Delta
Wed, Mar 4 - Sun, Mar 8
Delta Logo
10:13 am - 5:17 am
STL
-
UIO
18h 04m
2 stops
Delta Logo
7:00 pm - 3:13 pm
UIO
-
STL
20h 13m
2 stops
$747Delta
Mon, Apr 13 - Thu, Apr 16
LATAM Airlines Logo
6:00 am - 6:59 pm
STL
-
UIO
12h 59m
1 stop
LATAM Airlines Logo
12:59 am - 10:34 am
UIO
-
STL
9h 35m
1 stop
$767LATAM Airlines
Mon, Apr 13 - Fri, Apr 17
LATAM Airlines Logo
6:00 am - 4:43 am
STL
-
UIO
22h 43m
2 stops
LATAM Airlines Logo
6:50 pm - 10:34 am
UIO
-
STL
15h 44m
2 stops
$771LATAM Airlines
Booking Insights

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

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

How much is a round-trip flight from St. Louis to Quito?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from St. Louis to Quito departing in May.

Good to know

Low seasonNovember
Cheapest flight$585
Best time to beat the crowds with an average 16% drop in price.
Most popular time to fly with an average 1% increase in price.
Flight from St. Louis to Quito

When to book flights from St. Louis to Quito

Are your dates flexible? Find out the best times to travel from St. Louis to Quito based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from St. Louis to Quito

  • What is the cheapest flight from St. Louis to Quito?

    In the last 3 days, the lowest price for a flight from St. Louis to Quito was $585 for a one-way ticket and $636 for a round-trip.

  • Do I need a passport to fly between St. Louis and Quito?

    Yes, you’ll need a passport to travel to Quito from St. Louis.

  • Which airports will I be using when flying from St. Louis to Quito?

    On your way to Quito, you’ll fly out from Lambert-St Louis. You’ll be landing at Quito Mariscal Sucr.

  • Which aircraft models fly most regularly from St. Louis to Quito?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from St. Louis to Quito?

    Star Alliance, oneworld, and SkyTeam are the airline alliances operating flights between St. Louis and Quito, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from St. Louis to Quito, Delta or LATAM Airlines?

    The two airlines most popular with KAYAK users for flights from St. Louis to Quito are Delta and LATAM Airlines. With an average price for the route of $782 and an overall rating of 7.9, Delta is the most popular choice. LATAM Airlines is also a great choice for the route, with an average price of $902 and an overall rating of 7.5.

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

    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 Quito.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Quito from 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 from St. Louis to Quito?

    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 Quito with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and UIO can sometimes prove cheaper using this method.

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

    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 Quito from St. Louis 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 Quito

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Quito. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from St. Louis to Quito? 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 8127 reviews
7.8Entertainment
7.2Food
7.9Comfort
8.5Crew
8.1Boarding
Airline reviews

Timing, quality of service, promptness and courtesy of the staff

10.0 ExcellentAjai, Jan 2026
DFW - ATL
Read more Delta reviews

Timing, quality of service, promptness and courtesy of the staff

It was last minute due to weather - considering - it was amazing! Good smiles, friendly staff and they were making sure we knew what was going on when and where.

delta last minute gave me a boarding pass for a different flight with no confirmation that they were changing it

The flight was comfortable and uneventful, which is what I desire

The service from the flight attendants were of supreme quality. They greeted and treated everyone with a wide smile. This is totally absent nowadays. Kudos to them!!!!

Excellent flight and got us around tough weather. Only issue was seat TV did not work and crew tried to reboot.

Very large passenger too space from my own seat. Arm board couldn’t be lowered because of his size. It wads very uncomfortable trip, as the flight was full couldn’t move anywhere having back pain because of the position in which I was the entire flight.

was sitting in the jet bridge for 10 minutes in -20 degree weather waiting for my bag

Outdated equipment in disrepair, wifi inoperable. Broken seats, taped air vents, generally poor condition, the 717 showed its age and lack of upkeep.

My flight out of Baton Rouge to Atlanta was delayed by a half hour. This got us into Atlanta airport 30 minutes late. I ran through the airport to get to my connecting flight. As I approached the boarding gate, I saw the boarding door was still open and a passenger was being checked in. But when I got to the gate, the boarding agent told me they had already given away my seat and there were no empty seats on that flight. So I had to take a later flight. That has never happened to me before. Very frustrating.

We were not allowed to carry a bottle of water onto the 8 hour flight.

There was a mechanical issue with the plane that they had to work on before we could take off. That's fine, by all means, PLEASE make sure the mechanics are functioning properly. What was a problem was the fact that we sat on the tarmac for 4.5 hours without moving, without letting us off the plane, and without climate control and air running through the plane. There was no explanation as to what was going on; they just kept promising that it would be "15 minutes, then we are on our way." At one point, they even switched the entire crew out and told everyone we just needed to wait for new employees to show up. Then, as the 4 hours were not moving, an hour before the full refund, they made a big show about "the flight starting and the doors are locked, so you have to sit down." We didn't move for another 40 minutes; they were just trying to skirt around legalities that entitled us to restitution. When the flight finally was underway, the plane was gigantic but cramped in design, my entertainment screen kept freezing and glitching, and subtitles didn't work, and the crew was passive-aggressive. Terrible flight.

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.

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 .

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

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.

In overall it was a good experience, the only down point was that the entertainment screen was working properly.

HORRIBLE, my initial flight was cancelled, they made me pay $200 extra dollars and that got cancelled as well! After 6 cancellations I decided to get a refund because I needed to get home to my babies. Out of $1000+ dollars they offered me only $40 in refund! Totally unacceptable! The flight that they cancelled I was able to fly it on another airline. I had to spend $400 on one way tickets just to get home! I’m still getting the runaround.

First class ticket gets you a choice of chips or nuts. . Just like economy Southwest. Also no screen in the seats. This is first class???!

Seated dude next to me even though lots of empty rows. But main thing was we sat on the tarmac after landing for 30 minutes because of, in the words of the dude who sat next to me, “operational incompetence”. We got changing directions about where to pick up gate checked bags. Pilot and flight attendant were awesome though.

The food was terrible this time. Otherwise pleasant, quiet, on-time.

It was a pretty standard flight... until the almost hour and a half spent on the taxi way. I get that the weather has been poor but the delay had nothing to do with the weather and more to do with a plane with several issues tying up the gate. I get that that happens from time to time but this has been EVERY flight I've been on for the past 5 years and I fly 3 to 5 times a year. This isn't just United... it's American, it's Delta. It's an issue with the entire industry. I work for UPS and packages on a cargo plane get better service than people do these days. Anymore I HATE flying.

Flight arrived 30 min early and bag was waiting at the baggage pickup. United Club HNL was one of the nicest in the system

Unfortunately weather delayed our flight waiting for our plane to arrive and due to a little snow time was needed to deice the plane so departure was very delayed and I missed the connecting flight

Very good. Because of the delays with my previous flight, I missed my connection, but I was able to book another flight through the United app easily.

I wish there were outlets to charge my iPhone. The crew was great; we had a female pilot who was great with explaining what was happening and delays,

Crew was helpful and cheerful especially when they had no refreshments to work with. The plane was never serviced and had nothing but limited water and coffee onboard. For the price point, a concern of services.

Flight was smooth, quick and felt safe. The 2 delays not happening would have been better but I guess that happens in the airline industry

Flight was canceled. I asked to be rerouted to OKC and then took an Uber.

AA did not allow to board a flight because my connecting flight from DFW had been canceled. I got on another flight to another city. No service on the plane and I did not use their entertainment system.

On time on a day with lots of weather cancellations on other flights. Thank you for getting me home during a winter storm!

Don't change gate multiple times make people run across the airport. Announce delays in a timely manner. Have maintenance crew ready. Don't delay and keep passengers on the plane for 3 hrs. on tarmac.

The plane was experiencing problems with the HVAC system, it was very cold in the front of the plane and very hot in the back.

My flight to London from Philadelphia was cancelled due to weather.

The attendants were kind and helpful. A sugar-free drink would have been very welcome.

Pilot navigated severe weather/snow storm with skill. Described his intentions clearly

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

Information on your arrival and departure airports