$342 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 5/30. 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

Fri, Jul 24 - Tue, Jul 28
American Airlines Logo
6:00 am - 5:00 pm
STL
-
MVY
10h 00m
2 stops
American Airlines Logo
1:49 pm - 8:55 pm
MVY
-
STL
8h 06m
1 stop
$499American Airlines
Fri, Jul 24 - Tue, Jul 28
American Airlines Logo
6:00 am - 5:00 pm
STL
-
MVY
10h 00m
2 stops
American Airlines Logo
5:30 pm - 12:16 am
MVY
-
STL
7h 46m
2 stops
$504American Airlines
Fri, Jul 24 - Tue, Jul 28
American Airlines Logo
6:43 am - 5:00 pm
STL
-
MVY
9h 17m
1 stop
American Airlines Logo
5:30 pm - 9:21 pm
MVY
-
STL
4h 51m
1 stop
$553American Airlines
Fri, Jul 24 - Tue, Jul 28
American Airlines Logo
6:00 am - 5:00 pm
STL
-
MVY
10h 00m
2 stops
American Airlines Logo
5:30 pm - 9:21 pm
MVY
-
STL
4h 51m
1 stop
$570American Airlines
Fri, Jul 24 - Tue, Jul 28
American Airlines Logo
6:06 am - 11:52 am
STL
-
MVY
4h 46m
1 stop
American Airlines Logo
1:49 pm - 8:55 pm
MVY
-
STL
8h 06m
1 stop
$592American Airlines
Fri, Jul 24 - Tue, Jul 28
American Airlines Logo
6:00 am - 5:00 pm
STL
-
MVY
10h 00m
2 stops
American Airlines Logo
5:30 pm - 9:21 pm
MVY
-
STL
4h 51m
1 stop
$598American Airlines
Fri, Jul 24 - Tue, Jul 28
American Airlines Logo
6:00 am - 5:00 pm
STL
-
MVY
10h 00m
2 stops
American Airlines Logo
5:30 pm - 12:16 am
MVY
-
STL
7h 46m
2 stops
$603American Airlines
Fri, Jul 24 - Tue, Jul 28
American Airlines Logo
6:00 am - 5:00 pm
STL
-
MVY
10h 00m
2 stops
American Airlines Logo
5:30 pm - 12:16 am
MVY
-
STL
7h 46m
2 stops
$607American Airlines
Thu, Jun 25 - Mon, Jun 29
Delta Logo
9:22 am - 3:01 pm
STL
-
MVY
4h 39m
1 stop
Delta Logo
3:41 pm - 8:46 pm
MVY
-
STL
6h 05m
1 stop
$657Delta
Fri, Jul 24 - Tue, Jul 28
American Airlines Logo
6:00 am - 5:00 pm
STL
-
MVY
10h 00m
2 stops
American Airlines Logo
5:30 pm - 12:16 am
MVY
-
STL
7h 46m
2 stops
$659American 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 $442 on average. Morning departures are around 16% 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 $991.

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 $444, prices are generally cheapest when you fly direct.

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 Thursday, 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 10 weeks before departure.

Find deals

Good to know

Low seasonFebruary
Cheapest flight$342
Best time to beat the crowds but there is an average 42% increase in price.
Most popular time to fly and prices are also 1% lower on average.
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 11681 reviews
7.5Boarding
7.2Comfort
7.9Crew
6.9Entertainment
6.4Food
Airline reviews

Left early arrived early..right amount of talking from pilots..of course had to love the biscuit and water!

10.0 ExcellentStan, Apr 2026
LAX - PHL
Read more American Airlines reviews

Left early arrived early..right amount of talking from pilots..of course had to love the biscuit and water!

I would like a refund for the extra cost the seat I paid for. An oversized person sat next to me and I couldn’t fit on my seat and had to move to another seat.

Boarding gate at LAX was too crowded—two gates next to one another

The flight was delayed about an hour for a maintenance specialist to approve the maintenance repair

This flight was delayed but it worked in my favor because my Atlanta to Dallas flight was delayed.

This was a hard flight. 3 delays out of OKC (1 on the Tarmac). Delay in Atlanta coming to Dallas. total travel time was the equivalent of driving from OKC to Atlanta.

Like: flights are on time, good boarding process Can improve: planes are old, improve entertainment and make space more comfortable

Had to wait for a gate for a long time, then waited on the run way for a long time before leaving. The actual flights part was good.

American delayed the flight for a crew rest period. The delay occurred late in the evening - the earliest i can find is 10:20 pm. With a 6 am flight anyone on the flight would have already have been asleep (unless you are insane, a vampire or on drugs) and at least for me i was already on the way to the airport at 445 am the next morning when i discovered they delayed the flight until 9 am. Given the incoming flight was in the air at 6 pm the evening before this should have been figured out a lot more timely that was there only crew to use. Just frustrating given there is no consideration for customer experience anymore in flying.

Same plane as RDU to LGA — internet not working. Pilot issue of some sort at end of prior flight - I was on same plane for my connection. Late/delayed —

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

Information on your arrival and departure airports

St. Louis (STL)