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

Departing from Monterey to St. Louis will take you 5h 37m. 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 $382. American Airlines is 28% cheaper than the average price of flights available within the next 90 days to this destination.

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

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

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Monterey to St. Louis as you normally would.

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.

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.

$348+ Flights from Monterey to St. Louis

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Cheap 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 December 30, 2025.

Tue 12/302:30 pmMRY - STL

1 stop6h 00mUnited Airlines

Fri 1/29:00 amSTL - MRY

1 stop6h 45mUnited Airlines

Deal found 12/28

$909

Best flights from Monterey to St. Louis
Discover carefully curated flight deals from Monterey to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 30, 2025.

Sat 2/282:43 pmMRY - STL

2 stops21h 40mAlaska Airlines

Mon 3/27:00 amSTL - MRY

1 stop13h 36mAlaska Airlines

Deal found 12/29

$348

Fri 1/304:22 pmMRY - STL

1 stop5h 37mAmerican Airlines

Mon 2/22:38 pmSTL - MRY

1 stop6h 27mAmerican Airlines

Deal found 12/28

$367

Fri 4/34:50 pmMRY - STL

1 stop20h 30mAlaska Airlines

Mon 4/64:20 pmSTL - MRY

1 stop25h 53mAlaska Airlines

Deal found 12/29

$367

Fri 1/306:00 amMRY - STL

2 stops14h 46mAlaska Airlines

Mon 2/22:50 pmSTL - MRY

3 stops25h 47mAlaska Airlines

Deal found 12/28

$385

Last-minute flights from Monterey to St. Louis
Discover last-minute flight deals from Monterey to St. Louis. Data last updated December 30, 2025 and is based on user searches.

Tue 12/302:30 pmMRY - STL

1 stop6h 00mUnited Airlines

Fri 1/29:00 amSTL - MRY

1 stop6h 45mUnited Airlines

Deal found 12/28

$909

Sat 1/173:14 pmMRY - STL

2 stops20h 40mAlaska Airlines

Wed 1/212:50 pmSTL - MRY

2 stops10h 36mAlaska Airlines

Deal found 12/27

$386

Sat 1/175:00 amMRY - STL

1 stop6h 16mUnited Airlines

Wed 1/212:45 pmSTL - MRY

1 stop8h 35mUnited Airlines

Deal found 12/28

$498

Fri 1/304:22 pmMRY - STL

1 stop5h 37mAmerican Airlines

Mon 2/22:38 pmSTL - MRY

1 stop6h 27mAmerican Airlines

Deal found 12/30

$367

Fri 1/306:00 amMRY - STL

2 stops14h 46mAlaska Airlines

Mon 2/22:50 pmSTL - MRY

3 stops25h 47mAlaska Airlines

Deal found 12/30

$385

Find flight deals from Monterey to St. Louis

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$348 (Alaska Airlines)
Popular in	August
Cheapest in	June
Average price	$468

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. 15% potential increase in price ($83 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 5% potential price decrease ($24 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

MontereySt. Louis

MRY - STL

MRYSTL

Monterey Regional

Sat 2/28

2:43 pm-2:23 pm

2 stops21h 40m

Lambert-St Louis

Mon 3/2

7:00 am-6:36 pm

1 stop13h 36m

$348

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 4/3

4:50 pm-3:20 pm

1 stop20h 30m

Lambert-St Louis

Mon 4/6

4:20 pm-4:13 pm

1 stop25h 53m

$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-2:37 pm

3 stops25h 47m

$385

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/29

Compare providers for flights from Monterey to St. Louis

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 December.

Provider	Price Accuracy	Trust Score*
FlightHub	Price Accuracy3 stars	Trust Score*1 star
Expedia	Price Accuracy2 stars	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust 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 $91). 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.

Reviews of airlines servicing St. Louis

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

9,121 reviews

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

9,121 reviews

United Airlines

7.4

Good

9,121 reviews

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

11,074 reviews

United Airlines

7.4

Good

9,121 reviews

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

How long is the flight from Monterey to St. Louis?
Departing from Monterey to St. Louis will take you 5h 37m. 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 $382. 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 $91). 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

Edwardsville

O'Fallon

Swansea

Fairview Heights

Maryland Heights

Collinsville

Eureka

Glencoe

Chesterfield

Alton

Farmington

Festus

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Top 2 airlines flying from Monterey to St. Louis

Airline	Cheapest	Average	Flexibility	On-time
American Airlines	Cheapest$316	Average$461	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$382	Average$442	FlexibilityNo cancel fee	On-time69%

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$348+ 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 2/28. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Monterey to St. Louis with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Monterey to St. Louis

Cheapest flights from Monterey to St. LouisExplore 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 December 30, 2025.

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 December 30, 2025.

Find flight deals from Monterey to St. Louis

Most accurate provider

Most trusted provider

Round-trip from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

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

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 December.

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.

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?

Reviews of airlines servicing St. Louis

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.

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?

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

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

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

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

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

Traveling to a place near St. Louis?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Monterey to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from Monterey to St. Louis

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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 December 30, 2025.