STL - MLM

$198 Find Cheap Flights from St. Louis to Morelia - Compare and Save

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 Morelia departing on 8/24. 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
$437
Frontier
Fri 9/4Sat 9/12
STL - MLM • 2 stops
Cheapest one-way
$198
Multiple Airlines
Mon 8/24
STL - MLM • 2 stops
Top airlines
Cheapest • from $437 (round-trip)
Best reviews • 7.4 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 Morelia. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $673 (round-trip)
Shortest trip • 7h 10m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 100% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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We hope you love your trip to Morelia!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from St. Louis to Morelia (STL-MLM)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Morelia 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 Morelia

Fri, Sep 4 - Sat, Sep 12
Frontier Logo
6:17 pm - 8:23 pm
STL
-
MLM
27h 06m
2 stops
Frontier Logo
8:17 pm - 7:17 pm
MLM
-
STL
46h 00m
2 stops
$437Frontier
Wed, Sep 30 - Tue, Oct 6
Frontier Logo
2:29 pm - 8:23 pm
STL
-
MLM
30h 54m
2 stops
Frontier Logo
10:25 am - 7:17 pm
MLM
-
STL
31h 52m
2 stops
$457Frontier
Mon, Sep 7 - Mon, Sep 14
Frontier Logo
4:23 pm - 4:55 am
STL
-
MLM
37h 32m
2 stops
Frontier Logo
11:53 pm - 1:10 pm
MLM
-
STL
36h 17m
2 stops
$504Frontier
Mon, Aug 24 - Mon, Aug 31
Frontier Logo
6:17 pm - 8:23 pm
STL
-
MLM
27h 06m
2 stops
Frontier Logo
8:17 pm - 5:50 pm
MLM
-
STL
20h 33m
2 stops
$505Frontier
Wed, Sep 9 - Wed, Sep 16
American Airlines Logo
5:43 am - 10:57 am
STL
-
MLM
6h 14m
1 stop
American Airlines Logo
12:24 pm - 11:43 pm
MLM
-
STL
10h 19m
1 stop
$635American Airlines
Mon, Sep 7 - Mon, Sep 14
United Airlines Logo
11:15 am - 6:13 pm
STL
-
MLM
7h 58m
1 stop
United Airlines Logo
6:50 am - 9:36 pm
MLM
-
STL
13h 46m
2 stops
$639United Airlines
Wed, Sep 9 - Wed, Sep 16
United Airlines Logo
8:00 am - 6:13 pm
STL
-
MLM
11h 13m
2 stops
United Airlines Logo
6:50 am - 2:15 pm
MLM
-
STL
6h 25m
1 stop
$645United Airlines
Mon, Aug 24 - Mon, Aug 31
United Airlines Logo
11:15 am - 6:13 pm
STL
-
MLM
7h 58m
1 stop
United Airlines Logo
6:50 am - 10:27 pm
MLM
-
STL
14h 37m
1 stop
$645United Airlines
Wed, Sep 30 - Mon, Oct 5
American Airlines Logo
5:43 am - 10:57 am
STL
-
MLM
6h 14m
1 stop
American Airlines Logo
12:07 pm - 11:42 pm
MLM
-
STL
10h 35m
1 stop
$665American Airlines
Fri, Sep 4 - Sat, Sep 12
American Airlines Logo
6:36 am - 10:59 am
STL
-
MLM
5h 23m
1 stop
American Airlines Logo
12:24 pm - 11:43 pm
MLM
-
STL
10h 19m
1 stop
$665American Airlines
Booking Insights

KAYAK's insights & trends for St. Louis to Morelia flights

Get data-powered insights and trends into flights from St. Louis to Morelia to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from St. Louis to Morelia?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from St. Louis to Morelia, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from St. Louis to Morelia is April, where tickets cost $0 (return) on average. On the other hand, the most expensive months are October and March, where the average cost of round-trip tickets is $1,234 and $1,143 respectively.

Good to know

Low season

February

Cheapest flight

$198
Best time to beat the crowds with an average 32% drop in price.
Most popular time to fly with an average 1% increase in price.
Flight from St. Louis to Morelia

When to book flights from St. Louis to Morelia

Are your dates flexible? Find out the best times to travel from St. Louis to Morelia 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 Morelia

  • What is the cheapest flight from St. Louis to Morelia?

    In the last 5 days, the lowest price for a flight from St. Louis to Morelia was $198 for a one-way ticket and $437 for a round-trip.

  • Do I need a passport to fly between St. Louis and Morelia?

    A passport is required to fly from St. Louis to Morelia.

  • Which airports will I be using when flying from St. Louis to Morelia?

    When flying out of St. Louis you will be using Lambert-St Louis. You will be landing at Morelia, also known as Morelia.

  • Which aircraft models fly most regularly from St. Louis to Morelia?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from St. Louis to Morelia?

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

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

    The two airlines most popular with KAYAK users for flights from St. Louis to Morelia are United Airlines and American Airlines. With an average price for the route of $697 and an overall rating of 7.4, United Airlines is the most popular choice. American Airlines is also a great choice for the route, with an average price of $896 and an overall rating of 7.1.

  • How does KAYAK find such low prices on flights from St. Louis to Morelia?

    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 Morelia.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to Morelia?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Morelia 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 Morelia?

    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 Morelia with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and MLM 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 Morelia?

    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 Morelia 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 Morelia

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Morelia. 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 Morelia? 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.
7.4
United AirlinesOverall score based on 10046 reviews
6.6Food
7.7Boarding
7.3Comfort
7.1Entertainment
8.1Crew
Airline reviews

I almost missed my connection in Chicago due to having to wait on a gate to be open I am assuming. Having to run from E terminal to C terminal and I barely made it there before they closed the door. This may not be the actual airline's fault it's crazy how there is so little time between flight especially when they are placed so far apart in the airport.

8.0 ExcellentSherry, Jul 2026
COU - ORD
Read more United Airlines reviews

I almost missed my connection in Chicago due to having to wait on a gate to be open I am assuming. Having to run from E terminal to C terminal and I barely made it there before they closed the door. This may not be the actual airline's fault it's crazy how there is so little time between flight especially when they are placed so far apart in the airport.

Our flight was great with an unexpected upgrade. However, four days into our travel we are still without a piece of luggage. The bag tracker has not been accurate, the airline is not communicating with me or the luggage delivery service and no one is willing to take responsibility or guarantee any kind of support or reimbursement. Unfortunately, we do not have the option to easily shop to replace items as we are currently on a cruise. I have been very disappointed by United Airlines response.

Fine not above and beyond as I had a connection that was delayed due to maintenance

HORRIBLE, my initial flight was cancelled, they made me pay $200 extra dollars and that got cancelled as well! After 6 cancellations I decided to get a refund because I needed to get home to my babies. Out of $1000+ dollars they offered me only $40 in refund! Totally unacceptable! The flight that they cancelled I was able to fly it on another airline. I had to spend $400 on one way tickets just to get home! I’m still getting the runaround.

Flight was delayed. De-icing took a while. When we landed had to wait for another plane to vacate our gate. Just an overall bad experience.

Flight was delayed only slightly before takeoff due to traffic control. However, the flight arrived early to ORD. Good flight. United has been very reliable for me.

Our flight was understandably diverted to a small regional airport in Laramie, Wyoming due to weather conditions, which I fully recognize and appreciate. However, the low rating stems from the experience that followed: passengers remained on board for over an hour without the option to deplane and stretch, despite the aircraft being stationary. Although the pilot opened the cabin door, only he was permitted to exit. Meanwhile, passengers grew increasingly uncomfortable as warm summer air entered the cabin through the open door, and being in the second row meant we were impacted immediately. While the flight attendants made efforts to keep everyone at ease, I believe allowing passengers to deplane briefly, given the extended delay, would have significantly improved the overall experience.

Overall a very poor experience - booked premium economy tickets but due to last minute flight delays , all my itinery went for a toss and had to fly economy class with no access to lounge or any compensation by united airlines to make up for the flight delays . i had expected better experience than that from united.

Onboarding - it would be great to see on the screen what group they were boarding. It was very confusing on who was boarding (even though they called it out) they were not clear and the space to board was strange.

Older plane. Food was really bad, almost not worth the effort. Huge difference with European based airlines.

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

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

Overall boarding and debarking is a joke. I dont even bring luggage anymore on trips because you can never allow them to be place then in the overhead bin or you have to pay or you check them which is even worse having to wait for your luggage on the tarmac.

First time flying internationally with AA and probably my last. Not military friendly at all. Didn't allow free checked bag for military family members (dependents) on orders like other airlines. We were charged $100 for baggage weight overage (5 lbs!)even though we had military orders allowing us extra.. Didn’t allow military members to board early. Inefficient and long wait time to board. Seats are smaller and more uncomfortable than other airlines.. no drink service for over 7 hrs of flight! After initial meal was served, the crew never offered a snack or drinks until the breakfast's was served 1 1/2 hrs before landing. Overall expensive and poor experience for the entire flight.

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

Information on your arrival and departure airports