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318 € Cheap Flights from Cancun to St Louis

Compare Cancun to St Louis flight deals

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Flight deals from Cancun to St Louis

Looking for a cheap last-minute deal or the best return flight from Cancun Airport to St Louis Airport? If you want to travel next month, return fares start from 318 €. Find the lowest prices on one-way and return tickets right here.
St Louis.318 € per passenger.Departing Tue, 21 Jul, returning Mon, 27 Jul.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Cancun on Tue, 21 Jul, arriving in St Louis.Inbound indirect flight with Frontier Airlines, departs from St Louis on Mon, 27 Jul, arriving in Cancun.Price includes taxes and charges.From 318 €, select.
St Louis.350 € per passenger.Departing Thu, 6 Aug, returning Thu, 13 Aug.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Cancun on Thu, 6 Aug, arriving in St Louis.Inbound indirect flight with Frontier Airlines, departs from St Louis on Thu, 13 Aug, arriving in Cancun.Price includes taxes and charges.From 350 €, select.
St Louis.356 € per passenger.Departing Wed, 23 Dec, returning Wed, 6 Jan.Return flight with United.Outbound indirect flight with United, departs from Cancun on Wed, 23 Dec, arriving in St Louis.Inbound indirect flight with United, departs from St Louis on Wed, 6 Jan, arriving in Cancun.Price includes taxes and charges.From 356 €, select.
St Louis.391 € per passenger.Departing Sun, 26 Jul, returning Sat, 1 Aug.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Cancun on Sun, 26 Jul, arriving in St Louis.Inbound indirect flight with Frontier Airlines, departs from St Louis on Sat, 1 Aug, arriving in Cancun.Price includes taxes and charges.From 391 €, select.
St Louis.396 € per passenger.Departing Thu, 23 Jul, returning Wed, 29 Jul.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Cancun on Thu, 23 Jul, arriving in St Louis.Inbound direct flight with Southwest Airlines departs from St Louis on Wed, 29 Jul, arriving in Cancun.Price includes taxes and charges.From 396 €, select.
St Louis.402 € per passenger.Departing Thu, 27 Aug, returning Thu, 3 Sep.Return flight with Aeromexico and Frontier Airlines.Outbound indirect flight with Aeromexico, departs from Cancun on Thu, 27 Aug, arriving in St Louis.Inbound indirect flight with Frontier Airlines, departs from St Louis on Thu, 3 Sep, arriving in Cancun.Price includes taxes and charges.From 402 €, select.
St Louis.417 € per passenger.Departing Wed, 28 Oct, returning Mon, 2 Nov.Return flight with United.Outbound indirect flight with United, departs from Cancun on Wed, 28 Oct, arriving in St Louis.Inbound indirect flight with United, departs from St Louis on Mon, 2 Nov, arriving in Cancun.Price includes taxes and charges.From 417 €, select.
St Louis.432 € per passenger.Departing Wed, 28 Oct, returning Mon, 2 Nov.Return flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Cancun on Wed, 28 Oct, arriving in St Louis.Inbound direct flight with Frontier Airlines departs from St Louis on Mon, 2 Nov, arriving in Cancun.Price includes taxes and charges.From 432 €, select.
St Louis.547 € per passenger.Departing Wed, 16 Dec, returning Wed, 23 Dec.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Cancun on Wed, 16 Dec, arriving in St Louis.Inbound indirect flight with Southwest Airlines, departs from St Louis on Wed, 23 Dec, arriving in Cancun.Price includes taxes and charges.From 547 €, select.
St Louis.954 € per passenger.Departing Sun, 13 Dec, returning Sun, 20 Dec.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Cancun on Sun, 13 Dec, arriving in St Louis.Inbound direct flight with Southwest Airlines departs from St Louis on Sun, 20 Dec, arriving in Cancun.Price includes taxes and charges.From 954 €, select.

Find the cheapest month to fly from Cancun to St Louis

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Cancun to St Louis flights are currently cheapest in July.
Jun
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Jul
from 318 €
Aug
from 350 €
Sep
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Oct
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Nov
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Dec
from 547 €
Jan
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Feb
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Mar
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Apr
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May
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Direct flights from Cancun to St Louis

Cancun to St Louis: Alternative routes

Compare routes from Cancun to St Louis below. You may find an airport to fly into that's cheaper, faster, or easier than St Louis.

St Louis

20km from central St Louis
ClosestCheapest
from 318 €
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Belleville

32km from central St Louis
from 550 €
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Sparta Community

69km from central St Louis
Search flights

Cancun to St Louis: Flight information

The things to know before you go.
Cheapest flight found318 €
Cheapest month to flyJuly
Average flight time3 hrs, 13 mins
Most popular airlineSouthwest Airlines
Average flights per week17

Finding cheap flights from Cancun to St Louis: Frequently asked questions

The best price we found for a return flight from Cancun to St Louis is 318 €. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
3 hours and 13 minutes is the average flight time from Cancun to St Louis.
Southwest Airlines, Frontier Airlines and Volaris fly direct from Cancun to St Louis.
As of June 2026, there are 17 flights per week flying from Cancun to St Louis.
The cheapest month to fly from Cancun to St Louis is usually July.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Cancun Airport to St Louis Airport on Tuesday, 21 July 2026.
Yes – the average flight time is 3 hours and 13 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to St Louis but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to St Louis is around 40 days in advance, so don’t leave your flight to the last minute.

Currently, Frontier Airlines and Southwest Airlines offer the cheapest flight tickets to St Louis.

Flying from Cancun Airport (CUN) to St Louis Airport (STL): what you need to know

  • Around 3 hours 15 minutes is how long you'll be travelling on a direct flight from Cancun Airport to St Louis Airport.

  • St Louis is one hour behind Cancun and follows the UTC-6 timezone.

  • Take your pick of eight weekly Cancun Airport to St Louis Airport flights. The 09:00 departure with Southwest Airlines is the earliest flight available. Southwest Airlines operates the last service of the day at 17:05.

  • Arrive at the airport on time so you don't miss your CUN to STL flight. Be there at least two hours ahead for international flights and an hour early for domestic departures to prevent a last-minute sprint to your gate.

  • During popular months like April, you'll want to get to the airport earlier. Plan to arrive two hours before a domestic departure and four hours ahead of international flights whenever you're flying during a peak period in general.

  • With direct flights from Cancun Airport to St Louis Airport operated by a number of airlines, getting to St Louis (and then other corners of the United States) is a snap. Here's who you can fly nonstop with:

  • Most travellers choose to fly with Southwest Airlines on this route.

  • Frontier Airlines ranks as the top on-time carrier for CUN to STL flights, with 85.0% of its services reaching their destination on schedule.

  • If you'd like to include a stop along the way, just deselect 'Direct flights only' when searching for your ticket from Cancun Airport to St Louis Airport. These are the most popular stopovers between CUN and STL:

    • Atlanta Hartsfield-Jackson Airport

    • Charlotte Douglas Airport

    • Kansas City International Airport

How to find the cheapest flights from Cancun Airport (CUN) to St Louis Airport (STL)

  • The lowest price we've seen for a one-way Cancun Airport to St Louis Airport flight is 174 €. A return fare is currently 318 €. Depending on the availability when you book, these fares could change.

  • It's a good idea to book early if you're looking for cheap tickets from CUN to STL. That's because airlines adjust prices based on demand, which tends to increase closer to departure.

  • The cheapest month for flights from Cancun Airport to St Louis Airport is May. Use the 'Whole month' tool to see the lowest airfares if you have flexible travel dates.

  • Cut down on the time spent looking for cheap flights from CUN to STL by creating a Price Alert. You'll get an email or push notification on the app when a special offer becomes available.

  • Tailor your flights using filters. Select your ideal arrival and departure times, airlines and total journey duration. You can also sort results by 'Fastest,' 'Cheapest' or 'Best' flights from Cancun Airport to St Louis Airport.

Handy information about Cancun Airport (CUN)

  • Cancun Airport maintains a solid on-time record, so you're unlikely to face delays. Departures from CUN arrive at their destination as scheduled 80% of the time.

  • Cancun Airport is about 16 kilometres from central Cancun. If you're catching a taxi, ride-sharing or driving from the centre, it'll take 25 minutes or so to get there, depending on the traffic.

  • The journey when using public transport usually takes 35 minutes.

  • Looking for a convenient hotel close to CUN? If you're boarding an early flight from Cancun Airport to St Louis Airport, these stays will have you sleeping moments from your departure gate:

Arriving at St Louis Airport (STL)

When to fly to St Louis Airport (STL)

  • It's time to work out your travel dates for your flight from Cancun Airport to St Louis Airport. July is the most popular month to head to St Louis. If you'd like a more laid-back vibe, go in March.

  • The warmest month in St Louis is July, with temperatures ranging between 17ºC (63ºF) and 33ºC (91ºF). Book your flights from Cancun Airport to St Louis Airport in this month if this is the type of weather you enjoy.

  • January sees average temperatures of between -7ºC (19ºF) and 8ºC (46ºF). Look for cheap tickets from CUN to STL around that time if you want to travel when it's cooler.

Explore more of the United States

  • You've seen St Louis, now it's time to explore more of the United States. Journey about 418 kilometres north-east to Chicago to check off its leading attractions. From Millennium Park to Art Institute of Chicago and Willis Tower, there's plenty to keep you busy.

  • If you're eager to discover another great destination in the United States, consider Indianapolis, roughly 370 kilometres east of St Louis. Lucas Oil Stadium, Eiteljorg Museum and The Children's Museum of Indianapolis are key highlights.

Plan the rest of your trip from Cancun to St Louis

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.