Cheap Flights from Portsmouth (PSM) to St. Paul (STP)

Popular airlines from Portsmouth, NH (PSM-Portsmouth Intl.) to St. Paul, MN (STP-St. Paul Downtown)

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Flights from Portsmouth (PSM) to St. Paul (STP)
Origin airport
Portsmouth Intl.
Destination airport
St. Paul Downtown
Distance
1109 mi

Portsmouth to St. Paul Flights

The cheapest times to fly from Portsmouth to St. Paul

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 Portsmouth to St. Paul are during the month of . You can find some of the cheapest flights from Portsmouth to St. Paul with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Portsmouth to St. Paul

Sunday is one of the best days to book for cheap flights from Portsmouth to St. Paul: 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 Portsmouth to St. Paul

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 Portsmouth to St. Paul in 2026. 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 Portsmouth to St. Paul 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 Portsmouth to St. Paul 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.

 

Frequently asked questions

How much does a flight from Portsmouth Intl. Airport (PSM) to St. Paul Downtown Airport (STP) cost?
Get a cheap one-way flight or cheap return flight from Portsmouth Intl. Airport (PSM) to St. Paul Downtown Airport (STP) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Portsmouth Intl. Airport (PSM) to St. Paul Downtown Airport (STP)?
Planning your trip for is a great way to save, as it's the cheapest month for flights between PSM and STP. You'll typically find the lowest prices during off-peak months.
What is the cheapest airline that flies from Portsmouth Intl. Airport (PSM) to St. Paul Downtown Airport (STP)?
Use the filter tool on Expedia to compare different airlines and find the most affordable carrier that'll take you from PSM to STP. Then, sort your results by "Price (lowest to highest)" to pick up a great deal.
How many flights per day from Portsmouth Intl. Airport (PSM) to St. Paul Downtown Airport (STP)?
You'll need to catch a flight with a layover when traveling from Portsmouth Intl. Airport (PSM) to St. Paul Downtown Airport (STP). Direct flights don't operate daily on this route. However, simply filter your search to include one or more stops to discover an option that works for you.
What day of the week has the most flights from PSM to STP?
Friday is usually the busiest day for flights, while Tuesday tends to be the quietest.* Keep in mind that flight schedules can vary depending on a number of factors, including the carrier and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Portsmouth Intl. Airport (PSM) to St. Paul Downtown Airport (STP)?
To land at St. Paul Downtown Airport (STP) without delays, opt for a flight that leaves from Portsmouth Intl. Airport (PSM) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**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 Portsmouth Intl. Airport (PSM) to St. Paul Downtown Airport (STP) last-minute?
Holding off until just before your trip to book a ticket from PSM to STP often results in higher prices. Although you may find some last-minute deals, there's no guarantee. Keep your travel plans flexible to maximize your chances of landing a bargain.
Is it cheaper to book a PSM to STP flight and hotel package?
You can save money by securing a PSM to STP flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one convenient place. Once you've selected your preferred accommodations and flights, consider adding extras including tours, car rentals and activities.
Can I cancel or change the date of my flight from Portsmouth Intl. Airport (PSM) to St. Paul Downtown Airport (STP)?
If you booked your PSM to STP flight in the last 24 hours, you may be able to cancel or modify it without any fees. Depending on the airline and the ticket type you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for further details.

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