
$172 Cheap flight deals from St. Louis (STL) to Great Diamond Island (PWM)
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This Weekend's Flight Deals from St. Louis to Great Diamond Island
This weekend's flight prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.
Airfares from $172 One Way, $257 Round Trip from St. Louis to Great Diamond Island
Prices starting at $257 for return flights and $172 for one-way flights to Great Diamond Island were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.
Great Diamond Island economy flight packages

Portland Harbor Hotel
Mar 12 - Mar 15
St. Louis (STL) to Portland (PWM)
Reviewed on Dec 8, 2025

The Docent’s Collection – Thompson Block
Mar 12 - Mar 15
St. Louis (STL) to Portland (PWM)
Reviewed on Mar 10, 2023

Portland Regency Hotel & Spa
Mar 12 - Mar 15
St. Louis (STL) to Portland (PWM)
Reviewed on Sep 12, 2025
More About Flying To Great Diamond Island from St. Louis
Route Information for Flights from St. Louis to Great Diamond Island
Origin Airport IATA Code | STL |
|---|---|
Destination Airport IATA Code | PWM |
Distance | |
Direct Flight Airlines | |
Earliest Flight Arrival | |
Latest Flight Arrival |
St. Louis to Great Diamond Island
Those who want guaranteed low prices for St. Louis to Great Diamond Island flights only need to visit Orbitz. We take advantage of the latest mobile technologies to make sure you get the best bargain on your trip and that everything goes smoothly and according to your plans.
Take Advantage of Orbitz’s Amazing Customer Service on St. Louis to Great Diamond Island Flights
We will help you from booking to boarding on flights from St. Louis to Great Diamond Island. Whether you have questions about baggage limits, seat assignments or anything else, we will be there to answer them for you.
Get Great Recommendations For Travel Ideas On Orbitz.com
We do not only get the best bargains on flights from St. Louis to Great Diamond Island, but we can tell you what to do once you get there. Whether it is a music festival, hotel recommendation or list of local attractions, Orbitz can help make your travel plan more exciting.
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Fare, taxes & fees: Fares include all taxes and fees, except baggage fees. Rates shown reflect fares found by other Orbitz users over the past 7 days. Due to rapidly changing airline prices & seat availability, these fares may no longer be available.
Refunds/changes/cancellations: Itinerary changes, if permitted for the fare, will have a $30 service fee charged by Orbitz. Additional airline charges may apply.
Other conditions: Schedules, fares and rules are subject to change without notice. Seats are limited and may not be available on all flights/dates or in all markets. Lower fares may be available. Fares will not be honored retroactively or in exchange for any wholly/partially unused ticket. Tickets are non-transferable and non-refundable. Fare rules are provided for the selected itinerary before booking.
