STL - UIO

$697 Find Cheap Flights from St. Louis to Quito - Compare and Save

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Quito departing on 12/3. 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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Everything you should know

Cheapest round-trip
$697
United Airlines
Thu 12/3Sun 12/13
STL - UIO • 1 stop
Top airlines
Cheapest • from $697 (round-trip)
Best reviews • 7.8 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
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Insights
Top layover airports
Cheapest • Avg $864 (round-trip)
Shortest trip • 9h 44m (one-way)
Insights
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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, Dec 3 - Sun, Dec 13
United Airlines Logo
6:15 am - 12:30 am
STL
-
UIO
17h 15m
1 stop
United Airlines Logo
1:35 am - 9:42 am
UIO
-
STL
9h 07m
1 stop
$697United Airlines
Thu, Aug 27 - Wed, Sep 2
LATAM Airlines Logo
11:00 am - 6:59 pm
STL
-
UIO
7h 59m
1 stop
LATAM Airlines Logo
12:59 am - 9:20 am
UIO
-
STL
8h 21m
1 stop
$702LATAM Airlines
Thu, Aug 27 - Thu, Sep 3
LATAM Airlines Logo
11:00 am - 6:59 pm
STL
-
UIO
7h 59m
1 stop
LATAM Airlines Logo
9:00 am - 11:58 pm
UIO
-
STL
14h 58m
2 stops
$707LATAM Airlines
Thu, Dec 3 - Sun, Dec 13
United Airlines Logo
6:15 am - 12:30 am
STL
-
UIO
17h 15m
1 stop
United Airlines Logo
1:35 am - 3:41 pm
UIO
-
STL
39h 06m
2 stops
$719United Airlines
Tue, Nov 10 - Tue, Nov 24
Delta Logo
7:18 pm - 6:42 pm
STL
-
UIO
22h 24m
2 stops
Delta Logo
8:45 am - 11:56 pm
UIO
-
STL
16h 11m
2 stops
$722Delta
Tue, Nov 10 - Mon, Nov 23
Delta Logo
7:18 pm - 6:42 pm
STL
-
UIO
22h 24m
2 stops
Delta Logo
12:55 am - 8:53 am
UIO
-
STL
8h 58m
1 stop
$722Delta
Thu, Dec 3 - Mon, Dec 14
Delta Logo
7:18 pm - 6:42 pm
STL
-
UIO
22h 24m
2 stops
Delta Logo
8:45 am - 11:56 pm
UIO
-
STL
16h 11m
2 stops
$739Delta
Thu, Aug 27 - Thu, Sep 3
American Airlines Logo
10:44 am - 11:57 pm
STL
-
UIO
13h 13m
2 stops
American Airlines Logo
11:56 pm - 1:02 pm
UIO
-
STL
13h 06m
2 stops
$783American Airlines
Sat, Aug 29 - Fri, Sep 4
Delta Logo
7:00 am - 6:59 pm
STL
-
UIO
11h 59m
1 stop
Delta Logo
12:59 am - 4:17 pm
UIO
-
STL
15h 18m
1 stop
$858Delta
Thu, Dec 24 - Sun, Jan 10
American Airlines Logo
5:05 am - 8:58 pm
STL
-
UIO
14h 53m
1 stop
American Airlines Logo
12:49 am - 5:24 pm
UIO
-
STL
17h 35m
1 stop
$1,481American 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.

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

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 5 days.

In the past 5 days, the cheapest round-trip tickets from St. Louis to Quito were found on United Airlines ($697) and LATAM Airlines ($702).

Good to know

Cheapest flight

$697
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 5 days, the lowest price for a flight from St. Louis to Quito was $697 for a round-trip ticket.

  • 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?

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

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

    The two airlines most popular with KAYAK users for flights from St. Louis to Quito are Delta and American Airlines. With an average price for the route of $934 and an overall rating of 7.8, Delta is the most popular choice. American Airlines is also a great choice for the route, with an average price of $879 and an overall rating of 7.1.

  • 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 airlines flying 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.
7.8
DeltaOverall score based on 8497 reviews
8.5Crew
8.1Boarding
7.8Comfort
7.8Entertainment
7.2Food
Airline reviews

Your survey needs a N/A option. I didn’t use the entertainment or eat food.

10.0 ExcellentJon, Jul 2026
MCI - SLC
Read more Delta reviews

Your survey needs a N/A option. I didn’t use the entertainment or eat food.

Flight was delayed multiple time and for more than 1 hr. My onward flight from BOS to MCI was also delayed. These delays have caused me so much inconvenience and Delta does nothing to ensure flights take off on time. No one knew why the inbound flight was delayed and what was the issue.

Our flight was delayed by over 4 hours due to a maintenance issue. They announced a new plane was on the way. We were given a $12 food voucher ( airport food is quite expensive You can’t even by a water and a small snack for 12:00. 4 hours later we boarded and landed in Atlanta at 10:20 ish pm. Of course we missed our connection and we were given a hotel voucher and another food voucher ! We didn’t make it home until 11:00 the next day ! Unacceptable

From checking to boarding, it was a seamless experience. The service agents were so helpful. The flight crew was so pleasant.

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.

Great flight with Delta! Boarding was quick and easy, the amenities were solid, and the plane was in great shape. The flight attendants had a fun, lively energy while staying professional. All in all, a smooth trip — even managed to catch up on some rest. Thanks, Delta!

My flight was canceled after being rescheduled for four days canceling my trip. Kayak and everyone affiliated with it I.e the airlines, and just fly have been excruciating to deal with. My trip to visit family had to be canceled as there was no way to make it. I am furious at all of you.

They delayed our flight because of bad weather in NY which was completely understandable. Then they cancelled our flight and a later flight that evening. The earliest we could fly was the next morning. We ended up buying last minute tickets on another airline and made it home slightly delayed but safely that evening. Delta kept saying it was weather related but if that was the case how did we make it back on another airline? The weather in NY was cloudy but not bad.

The plane smelled like a sewer. Multiple passengers complained. It’s a safety and quality issue to clean these planes.

We were delayed 2 hours leaving STL. I had 20 mins from when we landed in SLC terminal A to make it to SLC terminal B. I had to actually run! thankfully I made my flight but 3/4 legs were delayed to some capacity.

My luggage was not sent with us. Not sure if this is Envoy Air responsibility but that was a very BAD experience

Absolutely terrible. They boarded the plane, supposedly realized they didn't refuel the plane or load the luggage so we sat as the gate inside the plane for over 2 hours while they supposedly did things that should have been done before having passengers board the planem

For a 4 1/2 hour international flight all we got was 1 small pack of cookies and a drink. You had to watch movies on your own devise.

American delayed the flight for a crew rest period. The delay occurred late in the evening - the earliest i can find is 10:20 pm. With a 6 am flight anyone on the flight would have already have been asleep (unless you are insane, a vampire or on drugs) and at least for me i was already on the way to the airport at 445 am the next morning when i discovered they delayed the flight until 9 am. Given the incoming flight was in the air at 6 pm the evening before this should have been figured out a lot more timely that was there only crew to use. Just frustrating given there is no consideration for customer experience anymore in flying.

Good crew and flight was on time. It’s a small plane with limited overhead luggage space. They said the overhead space was full and I had to check my bag. There was still space when I got on. Waiting for my checked luggage added 30 minutes to my trip. Not the end of the world but also not great.

Trip delayed for 2 hours because of rain. We boarded and have to get down the flight and reboard again.

No enough space plus only allowing one laggage instead of two like other airlines.

Qatar airways ,boarding arrangements at Hamid international airport could been better

Two flight changes before the scheduled flight. On the day of the flight, the flight was delayed, which caused the connecting flight to be missed. Then, I was directed to another airport (CUN) and traveled to Tulum. American gave a $12 voucher for lunch. The least expensive item on the menu at a Mexican restaurant was $9.99. Driving to Tulum was a bad auto crash, and traffic was delayed two-plus hours. The bottom line is that we should have been at the hotel at noon, but it ended up at 11:30 PM.

Miami lounges were overcrowded and we were unable to get in. We only had a short time. But the banks are too tight in all American hubs

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

Information on your arrival and departure airports