Cheap Flights from Philipsburg (SXM) to Boulder (WBU)

Popular airlines from Princess Juliana Intl. Airport (SXM) to Boulder, CO (WBU-Boulder Municipal)

Frequently asked questions

How much does a flight from Princess Juliana Intl. Airport (SXM) to Boulder, CO (WBU-Boulder Municipal) cost?
Secure a cheap one-way flight or cheap return flight from Princess Juliana Intl. Airport (SXM) to Boulder, CO (WBU-Boulder Municipal) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Princess Juliana Intl. Airport (SXM) to Boulder, CO (WBU-Boulder Municipal)?
The cheapest month to fly from SXM to WBU is , when demand is low. Off-peak season is often when airlines offer better prices between these airports.
What is the cheapest airline that flies from Princess Juliana Intl. Airport (SXM) to Boulder, CO (WBU-Boulder Municipal)?
To find the cheapest airline that'll fly you from SXM to WBU, use Expedia's filter tool. Tailor your search based on your travel style, such as preferred carriers and number of stops. You can then sort your results by "Price (lowest to highest)" to see the cheapest fares upfront.
How many flights per day from Princess Juliana Intl. Airport (SXM) to Boulder, CO (WBU-Boulder Municipal)?
Nonstop flights from Princess Juliana Intl. Airport (SXM) to Boulder, CO (WBU-Boulder Municipal) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your travel details and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from SXM to WBU?
Typically you'll have the most choice when it comes to flights on a Friday. Tuesdays are often the quietest.* However, this can vary based on the airline, time of year and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Princess Juliana Intl. Airport (SXM) to Boulder, CO (WBU-Boulder Municipal)?
Select a flight from Princess Juliana Intl. Airport (SXM) to Boulder, CO (WBU-Boulder Municipal) that takes off before 3 PM to reduce the risk of cancellations. Departures later than this are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Princess Juliana Intl. Airport (SXM) to Boulder, CO (WBU-Boulder Municipal) last-minute?
Booking your plane ticket from SXM to WBU just before your trip is typically more expensive. But if you're flexible with your departure dates and times, you could snag a cheap last-minute fare.
Is it cheaper to book a SXM to WBU flight and hotel package?
You can save money by booking a SXM to WBU flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one convenient place. Once you've selected your ideal accommodations and flights, you can add extras such as activities, tours and car rentals.
Can I cancel or change the date of my flight from Princess Juliana Intl. Airport (SXM) to Boulder, CO (WBU-Boulder Municipal)?
In most instances, you're able to cancel or reschedule your SXM to WBU flight. However, additional fees may apply, especially if you booked over 24 hours ago. Double-check your itinerary for the airline's policies and fees on flight changes, or if you want more details, head to our Customer Service portal.

Travel information

Origin airport
Princess Juliana Intl.
Destination airport
Boulder Municipal
Distance
2924 mi

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Philipsburg to Boulder Flights

The cheapest times to fly from Philipsburg to Boulder

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Philipsburg to Boulder are during the month of . You can find some of the cheapest flights from Philipsburg to Boulder with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Philipsburg to Boulder

Sunday is one of the best days to book for cheap flights from Philipsburg to Boulder: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Philipsburg to Boulder

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Philipsburg to Boulder in 2025. You can also book with separate airlines for your outbound and return journeys, from one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Philipsburg to Boulder flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Philipsburg to Boulder airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Philipsburg to Boulder Flights

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*Available to One Key members.