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Cheap flights from Cancún to St. Louis from $148

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Cancún to St. Louis departing on 9/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Cancún to St. Louis

Cheap round-trip flights

Frontier Logo
2:50 pm - 6:07 pmCUN-STL
3h 17mnonstop
Frontier Logo
10:22 am - 1:35 pmSTL-CUN
3h 13mnonstop
$347Frontier
Find Deal
Fri, Sep 26 - Mon, Sep 29
Delta Logo
1:54 pm - 11:02 pmCUN-STL
9h 08m1 stop
Delta Logo
1:30 pm - 8:09 pmSTL-CUN
6h 39m1 stop
$348Delta
Find Deal
Fri, Oct 10 - Mon, Oct 13
Frontier Logo
2:50 pm - 6:07 pmCUN-STL
3h 17mnonstop
Frontier Logo
10:22 am - 1:35 pmSTL-CUN
3h 13mnonstop
$350Frontier
Find Deal
Fri, Oct 10 - Mon, Oct 13
Spirit Airlines Logo
9:50 am - 9:52 amCUN-STL
24h 02m1 stop
Spirit Airlines Logo
5:26 pm - 11:20 amSTL-CUN
17h 54m1 stop
$363Spirit Airlines
Find Deal
Sun, Jul 27 - Sun, Aug 3
Aeromexico Logo
8:15 am - 3:58 pmCUN-STL
7h 43m1 stop
Aeromexico Logo
6:00 am - 12:45 pmSTL-CUN
6h 45m1 stop
$376Aeromexico
Find Deal
Fri, Sep 26 - Mon, Sep 29
Spirit Airlines Logo
12:26 pm - 2:39 pmCUN-STL
26h 13m1 stop
Spirit Airlines Logo
10:47 am - 10:06 amSTL-CUN
23h 19m2 stops
$387Spirit Airlines
Find Deal
Fri, Jul 25 - Fri, Aug 1
 Logo
2:50 pm - 6:07 pmCUN-STL
3h 17mnonstop
 Logo
7:20 am - 2:07 pmSTL-CUN
6h 47m1 stop
Fri, Sep 26 - Mon, Sep 29
Spirit Airlines Logo
2:01 pm - 7:49 amCUN-STL
41h 48m3 stops
Spirit Airlines Logo
8:44 am - 8:15 amSTL-CUN
23h 31m2 stops
$398Spirit Airlines
Find Deal
Fri, Sep 26 - Mon, Sep 29
Spirit Airlines Logo
9:50 am - 9:52 amCUN-STL
24h 02m1 stop
Spirit Airlines Logo
10:47 am - 11:20 amSTL-CUN
24h 33m2 stops
$412Spirit Airlines
Find Deal
Sun, Jul 27 - Sun, Aug 3
Aeromexico Logo
7:52 am - 11:39 pmCUN-STL
15h 47m2 stops
Aeromexico Logo
1:30 pm - 12:57 amSTL-CUN
11h 27m2 stops
$415Aeromexico
Find Deal
Fri, Sep 26 - Mon, Sep 29

Delta flights from Cancún to St. Louis

Our best Delta deals on Cancún to St. Louis flight tickets
Delta
Oct 10
CUN1:54 pmCancun
9h 08m
1 stop
STL11:02 pmLambert-St Louis
Oct 13
STL1:30 pmLambert-St Louis
6h 39m
1 stop
CUN8:09 pmCancun
Delta
Oct 10
CUN11:07 amCancun
11h 55m
2 stops
STL11:02 pmLambert-St Louis
Oct 13
STL7:20 amLambert-St Louis
12h 13m
2 stops
CUN7:33 pmCancun

Frontier flights from Cancún to St. Louis

Our best Frontier deals on Cancún to St. Louis flight tickets
Frontier
Sep 26
CUN2:50 pmCancun
3h 17m
STL6:07 pmLambert-St Louis
Sep 29
STL10:22 amLambert-St Louis
3h 13m
CUN1:35 pmCancun
Frontier
Oct 10
CUN2:50 pmCancun
3h 17m
STL6:07 pmLambert-St Louis
Oct 13
STL10:22 amLambert-St Louis
3h 13m
CUN1:35 pmCancun
Frontier
Jul 25
CUN3:25 pmCancun
17h 46m
1 stop
STL9:11 amLambert-St Louis
Aug 1
STL6:45 amLambert-St Louis
3h 17m
CUN10:02 amCancun

See travel insights to St. Louis from

How to get the cheapest flight ticket from Cancún to St. Louis

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to St. Louis?

The cheapest day to depart on your flight to St. Louis is on a Sunday when prices can be found for as low as $180. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Tuesday because tickets tend to average around $246. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.

What is the cheapest time of day to depart on your flight to St. Louis?

Flying to St. Louis from Cancún in the morning is the least expensive time of day to depart. momondo users have found prices as low as $196 when looking at flights departing in the morning. At noon is when there is more demand to fly to St. Louis, so prices are often more expensive at around $294 per ticket.

What is the cheapest Cancun to Lambert-St Louis flight route?

Fly from Cancun to Lambert-St Louis for the best Cancun - Lambert-St Louis flight prices

What cabin class options are available on Cancun to Lambert-St Louis flights?

There are 3 cabin classes available to choose from on Cancun to Lambert-St Louis flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Cancún to St. Louis flights?

No. A direct flight is the cheapest option for a flight between Cancún to St. Louis.

How have Cancún to St. Louis flight prices changed over time?

As of June 2025, prices for Cancún to St. Louis flights are approximately 3% more expensive when compared to flights at the same time last year.

When to book flights from Cancún to St. Louis

Are you open to changing your travel dates? Check out the ideal times to fly from Cancún to St. Louis according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Cancún to St. Louis (CUN to STL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Cancún to St. Louis

Best Price Found

$148

Fastest flight time

3h 08m

Direct flights

Every day

Airports in St. Louis

1 airport
The best one-way flight to St. Louis from Cancún in the past 72 hours is $148. The best round-trip flight deal from Cancún to St. Louis found on momondo in the last 72 hours is $347.
The fastest flight from Cancún to St. Louis takes 3h 08m
Direct flights go from Cancún to St. Louis every day.
There is 1 airport near St. Louis: Lambert-St Louis (STL)

  • How far is Cancun to Lambert-St Louis by plane?

    There are 1222.8 mi between Cancun and Lambert-St Louis. In terms of flight time, this usually takes a little over 3h 17m.

  • When did momondo last update prices for flights from Cancun Airport to Lambert-St Louis Airport?

    Prices for flights from Cancun Airport to Lambert-St Louis Airport refresh daily.

  • How old do you have to be to fly from Cancun Airport to Lambert-St Louis Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Cancun Airport to Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The required travel and health documents for your Lambert-St Louis Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Lambert-St Louis Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Cancún to St. Louis?


Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Hermann
Florissant
Fairview Heights
Maryland Heights
Collinsville
Fenton
Farmington
O'Fallon
Alton
St. Peters
Wentzville
Glencoe
Festus
Clayton
Eureka
Edwardsville
Grafton
Shrewsbury

Why use momondo?

Why should I use momondo to find a flight deal from Cancún to St. Louis?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Cancún to St. Louis for you.

Can I find flights from Cancún to St. Louis with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to St. Louis from Cancún with this policy.

How can momondo help me find flights from Cancún to St. Louis?

momondo helps you find the best flight between Cancún and St. Louis by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Cancún to St. Louis right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Cancún to St. Louis now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to St. Louis and let you know when they change.


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Tue 6/17
Tue 6/24

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