What is the cheapest month to book a flight from Cape Cod and the Islands to St. Louis?

Currently, August is the cheapest month in which you can book a flight from Cape Cod and the Islands to St. Louis (average of $311). Flying from Cape Cod and the Islands 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.

How far in advance should I book a flight from Cape Cod and the Islands to St. Louis?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 59 days in advance, which can save you up to 74% on flights from Cape Cod and the Islands to St. Louis compared to booking the week you need them. Waiting 59 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $521. For sooner than that we have options available in the next 3 days from $681.

What is the cheapest month to fly from Cape Cod and the Islands to St. Louis?

Flights from Cape Cod and the Islands to St. Louis lean towards being more expensive in April. Prices are generally better when you fly from Cape Cod and the Islands to St. Louis in September, with the cheapest ticket starting at $196.

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

When flying from Cape Cod and the Islands to St. Louis, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What airport do you fly into for flights to St. Louis from Cape Cod and the Islands?

If you book a flight to St. Louis from Cape Cod and the Islands, you will be flying to Lambert-St Louis, which is the city’s only airport. Lambert-St Louis (STL) is located 12.7 mi from the center of St. Louis.

How can I find direct flights from Cape Cod and the Islands to St. Louis?

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

Can I find deals for business class flights from Cape Cod and the Islands to St. Louis?

Yes. Cheapflights offers flight deals from Cape Cod and the Islands 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.

$476+ Flights from Cape Cod and the Islands to St. Louis

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Cheap flight deals from Cape Cod and the Islands to St. Louis

Round-trip from	$476 (Delta)
Popular in	April
Cheapest in	September
Average price	$441

From Cape Cod and the Islands to Lambert-St Louis

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Highest demand for flights based on searches. 9% potential increase in price ($43 potential increase over avg. RT price).

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Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).

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Average for round-trip flights in June 2025

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Find flight deals from Cape Cod and the Islands to St. Louis

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

vie. 9/53:20 pmMVY - STL

1 stop7h 09mDelta

dom. 9/76:00 amSTL - MVY

1 stop7h 40mDelta

Deal found 6/14

$476

Best flights from Cape Cod and the Islands to St. Louis
Discover carefully curated flight deals from Cape Cod and the Islands to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated junio 16, 2025.

vie. 9/53:20 pmMVY - STL

1 stop7h 09mDelta

dom. 9/76:00 amSTL - MVY

1 stop7h 40mDelta

Deal found 6/14

$476

One-way flights from Cape Cod and the Islands to St. Louis
Search for one-way flight options from Cape Cod and the Islands to St. Louis. Find affordable one-way fares based on user searches. Data last updated junio 16, 2025.

lun. 6/233:23 pmMVY - STL

1 stop6h 30mDelta

Deal found 6/14

$774

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

West TisburySt. Louis

MVY - STL

MVYSTL

West Tisbury Martha's Vineyard

vie. 9/5

3:20 pm-9:29 pm

1 stop7h 09m

Lambert-St Louis

dom. 9/7

6:00 am-2:40 pm

1 stop7h 40m

$476

West TisburySt. Louis

MVY - STL

MVYSTL

West Tisbury Martha's Vineyard

lun. 6/23

3:23 pm-8:53 pm

1 stop6h 30m

$774

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/14

Best time to book a flight from Cape Cod and the Islands to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Cape Cod and the Islands 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 Cape Cod and the Islands to St. Louis

Rainfall in St. Louis by month

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.

Temperature in St. Louis by month

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).

Reviews of airlines servicing St. Louis

Delta

8.0

Very good

7,963 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very good

7,963 reviews

Delta

8.0

Very good

7,963 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

What airport do you fly into for flights to St. Louis from Cape Cod and the Islands?
If you book a flight to St. Louis from Cape Cod and the Islands, you will be flying to Lambert-St Louis, which is the city’s only airport. Lambert-St Louis (STL) is located 12.7 mi from the center of St. Louis.
Can I find deals for flights from Cape Cod and the Islands to St. Louis that include hotel bookings?
Yes. In addition to deals on Cape Cod and the Islands to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Cape Cod and the Islands to St. Louis?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Cape Cod and the Islands to St. Louis.
Can I find deals for business class flights from Cape Cod and the Islands to St. Louis?
Yes. Cheapflights offers flight deals from Cape Cod and the Islands 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 Cape Cod and the Islands to St. Louis?
Currently, August is the cheapest month in which you can book a flight from Cape Cod and the Islands to St. Louis (average of $311). Flying from Cape Cod and the Islands 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

O'Fallon

Maryland Heights

Fairview Heights

Collinsville

Eureka

St. Peters

Glencoe

Festus

Alton

Farmington

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$476+ Cheap flights from Cape Cod and the Islands to St. Louis (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 9/5. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Cape Cod and the Islands 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 Cape Cod and the Islands to St. Louis

Keep the following information in mind while searching for Cape Cod and the Islands to St. Louis flight deals. Data was last updated junio 16, 2025.

Round-trip from

Popular in

Cheapest in

Average price

Find flight deals from Cape Cod and the Islands to St. Louis

Cheapest flights from Cape Cod and the Islands to St. LouisExplore the most affordable flight options available from Cape Cod and the Islands to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on junio 16, 2025.

Explore the most affordable flight options available from Cape Cod and the Islands to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on junio 16, 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Cape Cod and the Islands to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Cape Cod and the Islands with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Cape Cod and the Islands to St. Louis

Rainfall in St. Louis by month

Plan your trip to St. Louis by taking into account the average rainfall totals by month.

Temperature in St. Louis by month

Plan your trip to St. Louis by taking into account the average temperature totals by month.

Reviews of airlines servicing St. Louis

Related info for your journey

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

What airport do you fly into for flights to St. Louis from Cape Cod and the Islands?

Can I find deals for flights from Cape Cod and the Islands to St. Louis that include hotel bookings?

How can I find direct flights from Cape Cod and the Islands to St. Louis?

Can I find deals for business class flights from Cape Cod and the Islands to St. Louis?

What is the cheapest month to book a flight from Cape Cod and the Islands to St. Louis?

Traveling to a place near Cape Cod and the Islands?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Cape Cod and the Islands to St. Louis

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