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Cheap flights from Cancún to St. Louis from $209

1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Cancún to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
12:23 pm - 2:46 pmCUN  Cancun-STL Lambert-St Louis
3h 23mnonstop
Frontier Logo
6:20 am - 10:34 amSTL  Lambert-St Louis-CUN Cancun
3h 14mnonstop
$401Frontier
Fri, Nov 13 - Mon, Nov 16
United Airlines Logo
6:16 pm - 8:55 amCUN  Cancun-STL Lambert-St Louis
15h 39m2 stops Houston George Bush Intcntl Chicago O'Hare Intl
United Airlines Logo
6:00 am - 1:59 pmSTL  Lambert-St Louis-CUN Cancun
6h 59m1 stop Chicago O'Hare Intl
$446United Airlines
Fri, Nov 13 - Mon, Nov 16
Delta Logo
4:21 pm - 11:22 pmCUN  Cancun-STL Lambert-St Louis
8h 01m1 stop Minneapolis St Paul
Delta Logo
6:00 am - 3:06 pmSTL  Lambert-St Louis-CUN Cancun
8h 06m1 stop Atlanta Hartsfield-Jackson
$446Delta
Fri, Nov 13 - Mon, Nov 16
Frontier Logo
12:23 pm - 2:46 pmCUN  Cancun-STL Lambert-St Louis
3h 23mnonstop
Frontier Logo
6:20 am - 10:34 amSTL  Lambert-St Louis-CUN Cancun
3h 14mnonstop
$474Frontier
Wed, Nov 11 - Wed, Nov 18
United Airlines Logo
8:39 am - 4:50 pmCUN  Cancun-STL Lambert-St Louis
9h 11m1 stop Houston George Bush Intcntl
United Airlines Logo
8:00 am - 4:55 pmSTL  Lambert-St Louis-CUN Cancun
7h 55m1 stop Washington, D.C. Dulles Intl
$479United Airlines
Wed, Nov 11 - Wed, Nov 18
United Airlines Logo
4:47 pm - 10:32 amCUN  Cancun-STL Lambert-St Louis
18h 45m2 stops Houston George Bush Intcntl Chicago O'Hare Intl
United Airlines Logo
8:00 am - 4:55 pmSTL  Lambert-St Louis-CUN Cancun
7h 55m1 stop Washington, D.C. Dulles Intl
$479United Airlines
Wed, Nov 11 - Wed, Nov 18
Frontier Logo
10:49 am - 5:40 pmCUN  Cancun-STL Lambert-St Louis
30h 51m2 stops Chicago O'Hare Intl Atlanta Hartsfield-Jackson
Frontier Logo
6:35 pm - 9:58 amSTL  Lambert-St Louis-CUN Cancun
39h 23m2 stops Atlanta Hartsfield-Jackson Chicago O'Hare Intl
$480Frontier
Tue, Oct 20 - Fri, Oct 23
United Airlines Logo
6:16 pm - 12:38 pmCUN  Cancun-STL Lambert-St Louis
19h 22m2 stops Houston George Bush Intcntl Denver Intl
United Airlines Logo
6:50 pm - 3:24 pmSTL  Lambert-St Louis-CUN Cancun
19h 34m2 stops Chicago O'Hare Intl Houston George Bush Intcntl
$489United Airlines
Mon, Nov 16 - Mon, Nov 30
United Airlines Logo
3:11 pm - 11:38 pmCUN  Cancun-STL Lambert-St Louis
9h 27m1 stop Chicago O'Hare Intl
United Airlines Logo
6:15 am - 12:54 pmSTL  Lambert-St Louis-CUN Cancun
5h 39m1 stop Houston George Bush Intcntl
$492United Airlines
Sat, Dec 19 - Sun, Jan 3
United Airlines Logo
8:39 am - 11:38 pmCUN  Cancun-STL Lambert-St Louis
15h 59m2 stops Houston George Bush Intcntl Chicago O'Hare Intl
United Airlines Logo
5:20 am - 5:50 pmSTL  Lambert-St Louis-CUN Cancun
11h 30m2 stops Chicago O'Hare Intl Houston George Bush Intcntl
$492United Airlines
Sat, Dec 19 - Sun, Jan 3

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United Airlines flights from Cancún to St. Louis

Our best United Airlines deals on Cancún to St. Louis flight tickets
United Airlines
Nov 11
CUN8:39 amCancun
9h 11m
1 stop
STL4:50 pmLambert-St Louis
Nov 18
STL8:00 amLambert-St Louis
7h 55m
1 stop
CUN4:55 pmCancun
$479
United Airlines
Nov 16
CUN6:16 pmCancun
19h 22m
2 stops
STL12:38 pmLambert-St Louis
Nov 30
STL6:50 pmLambert-St Louis
19h 34m
2 stops
CUN3:24 pmCancun
$489
United Airlines
Dec 19
CUN8:39 amCancun
15h 59m
2 stops
STL11:38 pmLambert-St Louis
Jan 3
STL5:20 amLambert-St Louis
9h 10m
1 stop
CUN3:30 pmCancun
$492

Air Canada flights from Cancún to St. Louis

Our best Air Canada deals on Cancún to St. Louis flight tickets
Air Canada
Oct 15
CUN9:05 pmCancun
16h 55m
1 stop
STL2:00 pmLambert-St Louis
Oct 19
STL8:55 amLambert-St Louis
24h 55m
1 stop
CUN9:50 amCancun
$523
Air Canada
Oct 15
CUN9:05 pmCancun
23h 15m
1 stop
STL8:20 pmLambert-St Louis
Oct 19
STL8:55 amLambert-St Louis
11h 15m
1 stop
CUN8:10 pmCancun
$528
Air Canada
Nov 11
CUN10:30 amCancun
29h 56m
2 stops
STL3:26 pmLambert-St Louis
Nov 18
STL4:05 pmLambert-St Louis
29h 40m
2 stops
CUN10:45 pmCancun
$548

momondo Fare Finder

 
Use the filters below to find and compare flights from Cancún to St. Louis that are best for you.

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Route

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Price

Cheapest round-trip
Quickest round-trip

CancúnSt. Louis

CUN Cancun - STL Lambert-St Louis

CUNSTL

Cancun

Fri 11/13

12:23 pm-2:46 pm

Nonstop3h 23m

Lambert-St Louis

Mon 11/16

6:20 am-10:34 am

Nonstop3h 14m

$401

CancúnSt. Louis

CUN Cancun - STL Lambert-St Louis

CUNSTL

Cancun

Fri 11/13

6:16 pm-8:55 am

2 stops15h 39m

Lambert-St Louis

Mon 11/16

6:00 am-1:59 pm

1 stop6h 59m

$446

CancúnSt. Louis

CUN Cancun - STL Lambert-St Louis

CUNSTL

Cancun

Fri 11/13

4:21 pm-11:22 pm

1 stop8h 01m

Lambert-St Louis

Mon 11/16

6:00 am-3:06 pm

1 stop8h 06m

$446

CancúnSt. Louis

CUN Cancun - STL Lambert-St Louis

CUNSTL

Cancun

Wed 11/11

12:23 pm-2:46 pm

Nonstop3h 23m

Lambert-St Louis

Wed 11/18

6:20 am-10:34 am

Nonstop3h 14m

$474

CancúnSt. Louis

CUN Cancun - STL Lambert-St Louis

CUNSTL

Cancun

Wed 11/11

8:39 am-4:50 pm

1 stop9h 11m

Lambert-St Louis

Wed 11/18

8:00 am-4:55 pm

1 stop7h 55m

$479

CancúnSt. Louis

CUN Cancun - STL Lambert-St Louis

CUNSTL

Cancun

Wed 11/11

4:47 pm-10:32 am

2 stops18h 45m

Lambert-St Louis

Wed 11/18

8:00 am-4:55 pm

1 stop7h 55m

$479

CancúnSt. Louis

CUN Cancun - STL Lambert-St Louis

CUNSTL

Cancun

Tue 10/20

10:49 am-5:40 pm

2 stops30h 51m

Lambert-St Louis

Fri 10/23

6:35 pm-9:58 am

2 stops39h 23m

$480

CancúnSt. Louis

CUN Cancun - STL Lambert-St Louis

CUNSTL

Cancun

Mon 11/16

6:16 pm-12:38 pm

2 stops19h 22m

Lambert-St Louis

Mon 11/30

6:50 pm-3:24 pm

2 stops19h 34m

$489

CancúnSt. Louis

CUN Cancun - STL Lambert-St Louis

CUNSTL

Cancun

Sat 12/19

3:11 pm-11:38 pm

1 stop9h 27m

Lambert-St Louis

Sun 1/3

6:15 am-12:54 pm

1 stop5h 39m

$492

CancúnSt. Louis

CUN Cancun - STL Lambert-St Louis

CUNSTL

Cancun

Sat 12/19

8:39 am-11:38 pm

2 stops15h 59m

Lambert-St Louis

Sun 1/3

5:20 am-5:50 pm

2 stops11h 30m

$492

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 Saturday when prices can be found for as low as $243. 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 Sunday because tickets tend to average around $613. 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 at noon is the least expensive time of day to depart. momondo users have found prices as low as $188 when looking at flights departing at noon. In the afternoon is when there is more demand to fly to St. Louis, so prices are often more expensive at around $489 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 Cancún to St. Louis flights?

There is only 1 cabin class available to choose from on Cancún to 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 September 2026, prices for Cancún to St. Louis flights are approximately 32% cheaper 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

$209

Fastest flight time

3h 23m

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 $209. The best round-trip flight deal from Cancún to St. Louis found on momondo in the last 72 hours is $401.
The fastest flight from Cancún to St. Louis takes 3h 23m
Direct flights go from Cancún to St. Louis every day.
There is 1 airport in St. Louis. From Cancún there are direct flights to Lambert-St Louis (STL).
Search flight deals

Frequently asked questions about flying from Cancún to St. Louis

  • 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 23m.

  • 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 many operators does momondo search for flights from Cancun Airport to Lambert-St Louis Airport?

  • 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?

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

Best airlines flying from Cancún to St. Louis

Compare and see reviews for airlines that fly from Cancún to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $298Free CancellationRating
5.6
2,567 reviews
Search Frontier flights

Traveling to a place near St. Louis?

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

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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