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St. Louis

$132+ Cheap flights from Monterey to St. Louis (MRY - STL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/13. Fares are subject to change and may not be available on all flights or dates of travel.
MRY — STL
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
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Cheap flight deals from Monterey to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Monterey (MRY) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 16, 2025.

Round-trip from

$288
(Kiwi.com)

One-way from

$132
(Kiwi.com)

Popular in

December

Cheapest in

June

Average price

$346
From Monterey Regional to Lambert-St Louis
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One-way flight from Monterey Regional to Lambert-St Louis
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Highest demand for flights based on searches. 13% potential increase in price ($72 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($29 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Monterey to St. Louis

Cheapest flights from Monterey to St. Louis
Explore the most affordable flight options available from Monterey to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1710:10 pmMRY - STL
1 stop15h 46mMultiple Airlines
Thu 10/231:41 pmSTL - MRY
2 stops33h 39mMultiple Airlines
Deal found 9/14$288
This Kiwi.com deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1710:10 pmMRY - STL
1 stop15h 46mMultiple Airlines
Fri 10/2412:28 pmSTL - MRY
1 stop10h 52mMultiple Airlines
Deal found 9/14$333
This Kiwi.com deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1710:10 pmMRY - STL
1 stop15h 46mMultiple Airlines
Mon 10/2012:38 pmSTL - MRY
1 stop9h 51mMultiple Airlines
Deal found 9/14$336
This Kiwi.com deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/139:19 pmMRY - STL
2 stops9h 48mMultiple Airlines
Fri 10/2412:28 pmSTL - MRY
1 stop10h 52mMultiple Airlines
Deal found 9/14$352
This Kiwi.com deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/139:19 pmMRY - STL
2 stops9h 48mMultiple Airlines
Mon 10/2012:38 pmSTL - MRY
1 stop9h 51mMultiple Airlines
Deal found 9/14$353
This United Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/146:15 amMRY - STL
1 stop8h 39mUnited Airlines
Tue 10/214:50 pmSTL - MRY
1 stop6h 08mUnited Airlines
Deal found 9/14$367
This American Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/149:49 amMRY - STL
2 stops9h 04mAmerican Airlines
Tue 10/219:43 amSTL - MRY
2 stops10h 44mAmerican Airlines
Deal found 9/14$377
This Alaska Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/156:00 amMRY - STL
2 stops16h 03mAlaska Airlines
Tue 10/216:33 amSTL - MRY
1 stop14h 42mAlaska Airlines
Deal found 9/14$388
This American Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2312:39 pmMRY - STL
1 stop8h 17mAmerican Airlines
Mon 12/297:00 amSTL - MRY
1 stop6h 49mAmerican Airlines
Deal found 9/15$409

Cheapflights Fare Finder

 
Customize your flight search to find flights from Monterey to St. Louis that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 16, 2025.
Use the filters below to find and compare flights from Monterey to St. Louis that are best for you.

Fly from

Monterey

Fly to

St. Louis

Route

Depart

Return

Price

MontereySt. Louis

MRY - STL

MRYSTL

Monterey Regional

Thu 11/13

11:14 am-11:59 pm

1 stop10h 45m

Lambert-St Louis

Sun 11/16

4:14 pm-10:37 am

1 stop20h 23m

$367

MontereySt. Louis

MRY - STL

MRYSTL

Monterey Regional

Thu 10/16

12:30 pm-8:51 pm

1 stop6h 21m

Lambert-St Louis

Mon 10/20

5:11 am-11:40 am

1 stop8h 29m

$367

MontereySt. Louis

MRY - STL

MRYSTL

Monterey Regional

Tue 10/14

6:15 am-4:54 pm

1 stop8h 39m

Lambert-St Louis

Tue 10/21

4:50 pm-8:58 pm

1 stop6h 08m

$367

MontereySt. Louis

MRY - STL

MRYSTL

Monterey Regional

Wed 10/15

6:00 am-12:03 am

2 stops16h 03m

Lambert-St Louis

Tue 10/21

6:33 am-7:15 pm

1 stop14h 42m

$388

MontereySt. Louis

MRY - STL

MRYSTL

Monterey Regional

Tue 12/23

12:39 pm-10:56 pm

1 stop8h 17m

Lambert-St Louis

Mon 12/29

7:00 am-11:49 am

1 stop6h 49m

$409

MontereySt. Louis

MRY - STL

MRYSTL

Monterey Regional

Fri 10/10

4:07 pm-11:57 pm

1 stop5h 50m

Lambert-St Louis

Mon 10/13

6:23 pm-10:16 pm

1 stop5h 53m

$417

MontereySt. Louis

MRY - STL

MRYSTL

Monterey Regional

Wed 10/15

6:00 am-12:03 am

2 stops16h 03m

Lambert-St Louis

Mon 10/20

6:33 am-11:37 pm

2 stops19h 04m

$423

MontereySt. Louis

MRY - STL

MRYSTL

Monterey Regional

Sat 12/6

6:05 am-1:51 pm

1 stop5h 46m

Lambert-St Louis

Tue 12/9

2:37 pm-6:41 pm

1 stop6h 04m

$457

MontereySt. Louis

MRY - STL

MRYSTL

Monterey Regional

Mon 10/13

9:19 pm-9:07 am

2 stops9h 48m

$132

MontereySt. Louis

MRY - STL

MRYSTL

Monterey Regional

Fri 10/17

10:10 pm-3:56 pm

1 stop15h 46m

$144

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 19 results
1
2

Best time to book a flight from Monterey to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Monterey with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Monterey to St. Louis

What is the cheapest month to book a flight from Monterey to St. Louis?

Currently, August is the cheapest month in which you can book a flight from Monterey to St. Louis (average of $311). Flying from Monterey to St. Louis in March is currently the most expensive (average of $356). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from MRY to STL?

Find hourly flight availability from Monterey to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 16, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 59% on flights from Monterey to St. Louis by exploring options for tickets in the afternoon.

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to St. Louis. Reviews last updated September 16, 2025.
Read reviews from past customers who have flown United Airlines and American Airlines from Monterey to St. Louis. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,924 reviews

Comfort

7.3

Food

6.6

Crew

8.1

Entertainment

7.1

Boarding

7.7

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Kathy,Jun 2024

RDD - SFO

United has consistently been good. Every now and then there is a crew member that should probably retire, but most of them are excellent.
United Airlines
7.4
Good
8,924 reviews
United Airlines
7.4
Good
8,924 reviews

Comfort

7.3

Food

6.6

Crew

8.1

Entertainment

7.1

Boarding

7.7

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Kathy,Jun 2024

RDD - SFO

United has consistently been good. Every now and then there is a crew member that should probably retire, but most of them are excellent.
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,924 reviews

Comfort

7.3

Food

6.6

Crew

8.1

Entertainment

7.1

Boarding

7.7

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Kathy,Jun 2024

RDD - SFO

United has consistently been good. Every now and then there is a crew member that should probably retire, but most of them are excellent.

Related info for your journey

Find useful and relevant information for your journey from Monterey to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Monterey to St. Louis?

    Departing from Monterey to St. Louis will take you 6h 21m. The distance from Monterey to St. Louis is about 1718 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Monterey to St. Louis round-trip?

    Our cheapest airline available from Monterey to St. Louis is American Airlines. Our recent data shows that you can find tickets from as low as $316 on this airline. An additional option worth looking into is United Airlines, starting at $346. American Airlines is 32% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Monterey to St. Louis one-way?

    $217 is the cheapest one-way deal found within the past few days, from Alaska Airlines. You may also be able to find cheap deals on American Airlines and United Airlines, with prices starting from $229 and $234, respectively.

  • Can I find deals for flights from Monterey to St. Louis that include hotel bookings?

    Yes. In addition to deals on Monterey to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Monterey to St. Louis?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Monterey to St. Louis.

  • Can I find deals for business class flights from Monterey to St. Louis?

    Yes. Cheapflights offers flight deals from Monterey to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Monterey to St. Louis?

    Currently, August is the cheapest month in which you can book a flight from Monterey to St. Louis (average of $311). Flying from Monterey to St. Louis in March is currently the most expensive (average of $356). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Edwardsville
O'Fallon
Fairview Heights
Maryland Heights
Collinsville
Eureka
Glencoe
St. Peters
Chesterfield
Alton
Farmington
Festus

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Top 2 airlines flying from Monterey to St. Louis

Discover the top 2 airlines that operate flights from Monterey to St. Louis. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$316Average$461FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$346Average$444FlexibilityNo cancel feeOn-time69%

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