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$319+ Cheap flights from Monterey to St. Louis (MRY - STL)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/16. Fares are subject to change and may not be available on all flights or dates of travel.
MRY — STL
Dec 10 — Dec 171
Wed 12/10
Wed 12/17
1 adult, Economy
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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 November 10, 2025.

This United Airlines deal was found by Cheapflights users on 11/10. 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 12/165:05 amMRY - STL
1 stop5h 34mUnited Airlines
Tue 12/165:30 pmSTL - MRY
1 stop6h 29mUnited Airlines
Deal found 11/10$319
This Alaska Airlines deal was found by Cheapflights users on 11/8. 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.
Sat 12/611:23 amMRY - STL
1 stop25h 04mAlaska Airlines
Wed 12/107:00 amSTL - MRY
1 stop29h 46mAlaska Airlines
Deal found 11/8$392
This American Airlines deal was found by Cheapflights users on 11/9. 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.
Sat 12/64:23 pmMRY - STL
1 stop5h 33mAmerican Airlines
Wed 12/102:37 pmSTL - MRY
1 stop6h 04mAmerican Airlines
Deal found 11/9$408
This American Airlines deal was found by Cheapflights users on 11/9. 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.
Sat 11/156:05 amMRY - STL
1 stop5h 35mAmerican Airlines
Wed 11/192:29 pmSTL - MRY
1 stop6h 12mAmerican Airlines
Deal found 11/9$479
This Alaska Airlines deal was found by Cheapflights users on 11/10. 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.
Thu 12/258:02 pmMRY - STL
1 stop25h 57mAlaska Airlines
Tue 12/305:26 pmSTL - MRY
1 stop27h 59mAlaska Airlines
Deal found 11/10$584

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 November 10, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$319
(United Airlines)

Popular in

August

Cheapest in

June

Average price

$382
Provider with most accurate pricing for Monterey Regional-Lambert-St Louis flight deals.
Search Deals
Provider most trusted by Cheapflights users for Monterey Regional-Lambert-St Louis flights.
Search Deals
From Monterey Regional to Lambert-St Louis
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($85 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($26 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

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 November 10, 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

Tue 12/16

5:05 am-12:39 pm

1 stop5h 34m

Lambert-St Louis

Tue 12/16

5:30 pm-9:59 pm

1 stop6h 29m

$319

MontereySt. Louis

MRY - STL

MRYSTL

Monterey Regional

Fri 1/30

4:22 pm-11:59 pm

1 stop5h 37m

Lambert-St Louis

Mon 2/2

2:38 pm-7:05 pm

1 stop6h 27m

$367

MontereySt. Louis

MRY - STL

MRYSTL

Monterey Regional

Fri 1/30

6:00 am-10:46 pm

2 stops14h 46m

Lambert-St Louis

Mon 2/2

2:50 pm-11:26 pm

2 stops34h 36m

$373

MontereySt. Louis

MRY - STL

MRYSTL

Monterey Regional

Sat 12/6

11:23 am-2:27 pm

1 stop25h 04m

Lambert-St Louis

Wed 12/10

7:00 am-10:46 am

1 stop29h 46m

$392

MontereySt. Louis

MRY - STL

MRYSTL

Monterey Regional

Tue 12/23

5:05 am-1:20 pm

1 stop6h 15m

$552

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/10

Compare providers for flights from Monterey to St. Louis

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Monterey to St. Louis in November.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
ExpediaPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Monterey-St. Louis flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Monterey-St. Louis flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Monterey-St. Louis flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Monterey-St. Louis flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Monterey-St. Louis flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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, February is the cheapest month in which you can book a flight from Monterey to St. Louis (average of $119). Flying from Monterey to St. Louis in June is currently the most expensive (average of $262). 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 November 10, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 58% on flights from Monterey to St. Louis by exploring options for tickets in the afternoon.

How much does it cost to fly round-trip from Monterey to St. Louis?

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 November 10, 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
9,012 reviews

Crew

8.1

Overall

7.4

Entertainment

7.1

Comfort

7.3

Boarding

7.7

Food

6.6

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
9,012 reviews
United Airlines
7.4
Good
9,012 reviews

Crew

8.1

Overall

7.4

Entertainment

7.1

Comfort

7.3

Boarding

7.7

Food

6.6

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
11,045 reviews
United Airlines
7.4
Good
9,012 reviews

Crew

8.1

Overall

7.4

Entertainment

7.1

Comfort

7.3

Boarding

7.7

Food

6.6

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 5h 34m. 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 28% cheaper than the average price of flights available within the next 90 days to this destination.

  • 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, February is the cheapest month in which you can book a flight from Monterey to St. Louis (average of $119). Flying from Monterey to St. Louis in June is currently the most expensive (average of $262). 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 November 10, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$316Average$461FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$346Average$444FlexibilityNo cancel feeOn-time69%

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