$352 Find Cheap Flights from St. Louis to Cape Cod and the Islands

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 Cape Cod and the Islands departing on 6/29. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Cape Cod and the Islands

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Cape Cod and the Islands, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Cape Cod and the Islands, as well as popular online travel agencies
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Flight Deals

Book Cheap St. Louis to Cape Cod and the Islands Plane Tickets

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

Wed, Aug 5 - Sat, Aug 8
American Airlines Logo
6:20 am - 11:56 am
STL
-
MVY
4h 36m
1 stop
American Airlines Logo
2:07 pm - 9:03 pm
MVY
-
STL
7h 56m
1 stop
$532American Airlines
Wed, Aug 5 - Sat, Aug 8
American Airlines Logo
6:06 am - 4:25 pm
STL
-
MVY
9h 19m
2 stops
American Airlines Logo
3:21 pm - 7:33 pm
MVY
-
STL
5h 12m
1 stop
$538American Airlines
Wed, Aug 5 - Sat, Aug 8
American Airlines Logo
6:02 am - 4:25 pm
STL
-
MVY
9h 23m
2 stops
American Airlines Logo
2:45 pm - 11:55 pm
MVY
-
STL
10h 10m
2 stops
$653American Airlines
Wed, Apr 8 - Mon, Apr 13
Multiple Airlines Logo
3:50 pm - 1:23 pm
STL
-
MVY
20h 33m
2 stops
Multiple Airlines Logo
7:09 am - 11:59 pm
MVY
-
STL
17h 50m
2 stops
$1,941Multiple Airlines
Booking Insights

KAYAK's insights & trends for St. Louis to Cape Cod and the Islands flights

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

What is the cheapest time of day to fly to Cape Cod and the Islands?

The average price for all round-trip flights from St. Louis to Cape Cod and the Islands depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Cape Cod and the Islands is generally at night, when round-trip flights cost $440 on average. Morning departures are around 15% more expensive than evening flights, on average. The most expensive time of day to fly to Cape Cod and the Islands is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $985.

Can I save money by flying with a layover from St. Louis to Cape Cod and the Islands?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $424, prices are generally cheapest when you fly direct.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from St. Louis to Cape Cod and the Islands, 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 Cape Cod and the Islands is September, when tickets cost $382 (return) on average. On the other hand, the most expensive months are February and October, when the average cost of round-trip tickets is $659 and $479 respectively.

What’s the cheapest day of the week to fly from St. Louis to Cape Cod and the Islands?

The average price of all round-trip flights from St. Louis to Cape Cod and the Islands clicked on KAYAK for each day over the last 12 months.

For St. Louis to Cape Cod and the Islands, Wednesday is the cheapest day to fly on average and Sunday is the most expensive. Flying from Cape Cod and the Islands back to St. Louis, the best deals are generally found on Wednesday, with Sunday being the most expensive.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from St. Louis to Cape Cod and the Islands, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from St. Louis to Cape Cod and the Islands, you should book around 4 weeks before departure, which saves you about 55% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 8 weeks before departure.

Find deals

Good to know

Low seasonFebruary
Cheapest flight$352
Best time to beat the crowds but there is an average 42% increase in price.
Most popular time to fly with an average 3% increase in price.
Flight from St. Louis to West Tisbury

FAQs - booking Cape Cod and the Islands flights

  • How does KAYAK find such low prices on flights from St. Louis to Cape Cod and the Islands?

    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 Cape Cod and the Islands.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from St. Louis to Cape Cod and the Islands 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 Cape Cod and the Islands?

    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 from St. Louis to Cape Cod and the Islands with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to Cape Cod and the Islands?

    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 from St. Louis to Cape Cod and the Islands up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from St. Louis to Cape Cod and the Islands

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Cape Cod and the Islands. 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 Cape Cod and the Islands? 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.
7.1
American AirlinesOverall score based on 11468 reviews
6.4Food
7.2Comfort
6.9Entertainment
7.5Boarding
7.9Crew
Airline reviews

The business steward was absolutely amazing! Smiles and kindness! Wish all AA flights are like this one!

8.0 ExcellentRanjani, Mar 2026
BOS - CVG
Read more American Airlines reviews

The business steward was absolutely amazing! Smiles and kindness! Wish all AA flights are like this one!

As a first class customer, there was no power the entire flight which limited my ability to work. I find this unacceptable. The first 11 rows on the left side of the plan were out. I was only offered the option to charge my phone which was not the issue because my laptop was out of power. I asked if there was anything that can be done for me, and the answer was, "no". I was not offered any type of compensation for this AA problem which caused me unnecessary stress due to inability to address business issues on an already challenging travel day. Flight attendants tried to reset the power once but that was the extent of their support. Very disappointing for the lack of expected services on a flight. Please contact me with customer focused response to this complaint.

Delay after delay with little communication then AA lost my luggage and at airport would not assist just said scan this QR code to track your luggage and submit a claim. However QR code provided did not work so have to go back to airport

After changing the departure gate 5 times making us mo e from one side of the airport to the other and then back the flight was delayed nearly 2 hours. The male flight attendant had a bad attitude with the guest being condescending, disrespectful with people who were already on edge.

Easy boarding. Rows are smaller but that may be an older and bigger me now :)

It would have been nice if American tried to care.

American Airlines did everything they could with the high Spring Break crowd. I was frustrated to be changed from 1st class to a middle seat at the back of the plane. This has happened before, not sure booking 1st class and paying the extra actually works.

I booked 1st class, my flights were changed and I was sitting in the middle at the back of the plane. A far cry from the 1st class I purchased for my flights. I am grateful I arrived on time.

There was no beverage service and the only time I saw a crew member walk through the cabin is when we were preparing to land.

Our flight was delayed 3 times and this is why I am giving such low reviews. Everything else was okay but being in the airport at 4:30pm for my initial flight at 7pm to not leave until after 9:30pm is insane,

Everything you need to know for your flight to Cape Cod and the Islands

Information on your arrival and departure airports

St. Louis (STL)