STL - UIO

$673 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 3/26. 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
Travelers love KAYAK
41 299 237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$673
Typical prices: $675-$841
American Airlines
Thu 4/30Thu 5/7
STL - UIO • 1 stop
Cheapest one-way
$356
Multiple Airlines
Thu 3/26
STL - UIO • 3 stops
Top airlines
Cheapest • from $673 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between St. Louis and Quito. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $846 (round-trip)
Shortest trip • 10h 23m (one-way)
Insights
Insights
Insights
Insights
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Quito!
Flight Deals
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, Apr 30 - Thu, May 7
American Airlines Logo
11:06 am - 7:57 pm
STL
-
UIO
8h 51m
1 stop
American Airlines Logo
11:40 pm - 1:22 pm
UIO
-
STL
13h 42m
2 stops
$673American Airlines
Wed, Apr 15 - Tue, Apr 21
LATAM Airlines Logo
9:59 am - 6:59 pm
STL
-
UIO
9h 00m
1 stop
LATAM Airlines Logo
12:59 am - 5:44 pm
UIO
-
STL
16h 45m
1 stop
$687LATAM Airlines
Wed, Apr 15 - Wed, Apr 22
Delta Logo
9:59 am - 4:43 am
STL
-
UIO
18h 44m
2 stops
Delta Logo
6:50 pm - 11:56 am
UIO
-
STL
17h 06m
2 stops
$692Delta
Thu, Apr 30 - Thu, May 7
American Airlines Logo
7:05 am - 7:57 pm
STL
-
UIO
12h 52m
2 stops
American Airlines Logo
11:40 pm - 12:48 pm
UIO
-
STL
13h 08m
2 stops
$701American Airlines
Thu, May 14 - Fri, Aug 21
Delta Logo
7:15 am - 6:59 pm
STL
-
UIO
11h 44m
1 stop
Delta Logo
6:50 pm - 3:57 pm
UIO
-
STL
21h 07m
2 stops
$702Delta
Fri, May 1 - Thu, May 7
Delta Logo
6:00 am - 6:59 pm
STL
-
UIO
12h 59m
1 stop
Delta Logo
12:59 am - 12:20 pm
UIO
-
STL
11h 21m
1 stop
$707Delta
Thu, May 14 - Fri, Aug 21
American Airlines Logo
5:24 am - 7:57 pm
STL
-
UIO
14h 33m
1 stop
American Airlines Logo
6:09 am - 11:59 pm
UIO
-
STL
17h 50m
1 stop
$709American Airlines
Fri, May 1 - Fri, May 8
American Airlines Logo
11:06 am - 10:24 pm
STL
-
UIO
11h 18m
1 stop
American Airlines Logo
7:05 am - 11:56 pm
UIO
-
STL
16h 51m
2 stops
$712American Airlines
Fri, May 15 - Tue, May 19
American Airlines Logo
11:06 am - 10:24 pm
STL
-
UIO
11h 18m
1 stop
American Airlines Logo
7:05 am - 10:24 pm
UIO
-
STL
15h 19m
1 stop
$721American Airlines
Fri, May 15 - Tue, May 19
American Airlines Logo
7:05 am - 10:24 pm
STL
-
UIO
15h 19m
2 stops
American Airlines Logo
7:05 am - 10:07 pm
UIO
-
STL
15h 02m
2 stops
$726American 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 April.

Good to know

Low seasonApril
Cheapest flight$356
Best time to beat the crowds with an average 15% drop in price.
Most popular time to fly with an average 2% 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 $356 for a one-way ticket and $673 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?

    oneworld, Star Alliance, and SkyTeam are the airline alliances operating flights between St. Louis and Quito, with oneworld 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 $868 and an overall rating of 7.4.

  • 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 8288 reviews
7.8Entertainment
8.1Boarding
7.9Comfort
8.5Crew
7.2Food
Airline reviews

My flight was canceled on Sunday. Rebooking took three hours. Had to pay for accommodations another night. New flight was delayed for 5 hours, all that was sent was a 12 dollar food voucher, which doesn’t tell you how to use it. Then when we landed we had to sit on the plane for an hour before we could get off.

2.0 MediocreAnonymous, Mar 2026
LAX - BNA
Read more Delta reviews

My flight was canceled on Sunday. Rebooking took three hours. Had to pay for accommodations another night. New flight was delayed for 5 hours, all that was sent was a 12 dollar food voucher, which doesn’t tell you how to use it. Then when we landed we had to sit on the plane for an hour before we could get off.

Miserable. This entire round trip was miserable. I booked evening flights to and from Detroit on consecutive days that should have had me at my destination by 10:30. Instead I arrived after 3am on my flight to Detroit and after midnight on my return. Multiple unforced errors like awaiting bags to get put on the plane for almost an hour in Detroit and a 20 minute delay to pull up to the gate in Atlanta has me rethinking my assumption that delta is the best and most reliable airline

Perhaps when you’re sitting in 1st class and the crew closes the bathroom for the pilots, there could be a notification other than holding your hands up as a blockade when you get there and you’re told the restrooms are closed please turn around … especially at night when visibility is poor and you’re met by a flight attendants with their arms up

First class is comfortable. Enjoyed a movie and was able to relax compared to coach.

Loved flying First Class. Very comfortable. The seat was amazing. Enjoyed a movie and was able to relax so much better than in coach.

We landed and sat on the tarmac for 45 minutes because they only have one gate at the airport and there was another plane running late so we had to wait

The WiFi was not working. That made for a long flight.

With Aeromexico it ended up good but with Delta it was bad because we did everything through Delta... Showed up at the Delta terminal... It was the wrong place! Nothing ever told us to go to the Aeromexico terminal. It said "in partnership with Aeromexico" but I was never instructed to check in with them or go to their terminal. We had to haul @$$ running through the airport and almost didn't make it thanks to this poor communication. 👎🏽

Absolutely no communication on why there's a delay and multiple flight time reschedules. I would have canceled the flight and drove back home if I known it was going to be rescheduled 3 or 4 times.

Another late night flight and MORE men belligerently drinking and yelling. I had to move from first to economy because they were so obnoxious and disruptive. Crazy to go from a cozy chair to cardboard when you were supposed to be in first. Delta allows was too much drinking which leads to belligerent behavior.

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

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

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

OK, we were delayed and had to de plane and reboard.

United is one airline which regardless of how many separate United tickets in existence, if one flight breaks down, the airline will take care of all the flights.

Both our flights were delayed. Almost didn’t get in the second flight. Staff was rude to the bone.

Both my flight where delayed Had 25min to make it to my transfer flight

Everything was on time and service on the flight was great!

Wifi Bluetooth features for watching in flight movie was horrible. Screen kept blacking out no connection of sound although it said connected. Other than that smooth trip .

The 777’s economy seat’s legroom was more tolerable than expected. I appreciate the reclining mechanism which slides the seat forward to minimize cannibalizing the space behind. The food was terrible: very salty.

The travel company that you have on your site did me so wrong. I don’t know how it happened, but they put my son‘s name on my plane ticket flying to Vietnam. Along with his birthday. They would not have let me fly from Fort Myers to Ho Chi Minh City. I don’t think that I can ever use your service again. I typed my information into the browser along with my passport number and four days before I’m leaving I have to quickly search another ticket to fly out here.

Seats are uncomfortable. This has been a trend in the industry for decades. Trying to fit more seats on each plane to increase profits at the expense of the passenger.

The flight was delayed so we were dead tired, and after that the turbulence was horrible. I was very scared.

The business steward was absolutely amazing! Smiles and kindness! Wish all AA flights are like this one!

As a first class customer, there was no power the entire flight which limited my ability to work. I find this unacceptable. The first 11 rows on the left side of the plan were out. I was only offered the option to charge my phone which was not the issue because my laptop was out of power. I asked if there was anything that can be done for me, and the answer was, "no". I was not offered any type of compensation for this AA problem which caused me unnecessary stress due to inability to address business issues on an already challenging travel day. Flight attendants tried to reset the power once but that was the extent of their support. Very disappointing for the lack of expected services on a flight. Please contact me with customer focused response to this complaint.

Not really sure I enjoyed the flight at all. The flight attendants seemed a little tired and rude at times. The snacks were lacking in taste and sustenance. The flight was incredibly turbulent for three plus hours and the pilot had to do a second pass to land at our final destination because he was coming in so fast. He must have taken a short cut and because of it we had to suffer the violent turbulence and the dropping down. It had to be one of if not the worse flights I have ever been on and have traveled vastly all over the world.

Delay after delay with little communication then AA lost my luggage and at airport would not assist just said scan this QR code to track your luggage and submit a claim. However QR code provided did not work so have to go back to airport

After changing the departure gate 5 times making us mo e from one side of the airport to the other and then back the flight was delayed nearly 2 hours. The male flight attendant had a bad attitude with the guest being condescending, disrespectful with people who were already on edge.

Easy boarding. Rows are smaller but that may be an older and bigger me now :)

It would have been nice if American tried to care.

American Airlines did everything they could with the high Spring Break crowd. I was frustrated to be changed from 1st class to a middle seat at the back of the plane. This has happened before, not sure booking 1st class and paying the extra actually works.

I booked 1st class, my flights were changed and I was sitting in the middle at the back of the plane. A far cry from the 1st class I purchased for my flights. I am grateful I arrived on time.

Aging planer and NO wifi on a 14 hour day flight. Unless you are retired or don't need to work or be in touch with the world... The lack of Wifif really ruined the flight. And the old plane - really showing it's age, wasn't great

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

Information on your arrival and departure airports