Cheap Flights from Belleville (BLV) to Portsmouth (PSM)

Popular airlines from Belleville, IL (BLV-MidAmerica-St. Louis) to Portsmouth, NH (PSM-Portsmouth Intl.)

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Frequently asked questions

How much does a flight from MidAmerica-St. Louis Airport (BLV) to Portsmouth Intl. Airport (PSM) cost?
Get a cheap one-way flight or cheap return flight from MidAmerica-St. Louis Airport (BLV) to Portsmouth Intl. Airport (PSM) 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 MidAmerica-St. Louis Airport (BLV) to Portsmouth Intl. Airport (PSM)?
Planning your getaway for may help you find better deals, as it's the cheapest month for flights between BLV and PSM. You'll usually find the lowest prices during off-peak months.
What is the cheapest airline that flies from MidAmerica-St. Louis Airport (BLV) to Portsmouth Intl. Airport (PSM)?
To find the cheapest airline that'll fly you from BLV to PSM, use Expedia's filter tool. Tailor your search based on your travel needs, such as preferred carriers and ideal departure window. You can then sort your results by "Price (lowest to highest)" to see the most affordable options first.
How many flights per day from MidAmerica-St. Louis Airport (BLV) to Portsmouth Intl. Airport (PSM)?
There are no daily direct flights from MidAmerica-St. Louis Airport (BLV) to Portsmouth Intl. Airport (PSM). But you can choose flights with layovers. Filter your search results on Expedia to include one or two stops, and you'll be on your way before you know it.
What day of the week has the most flights from BLV to PSM?
Generally you'll find the most flight options available on a Friday. Tuesdays tend to be the quietest.* However, this can vary depending on the airline, season 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 MidAmerica-St. Louis Airport (BLV) to Portsmouth Intl. Airport (PSM)?
To reach Portsmouth Intl. Airport (PSM) without delays, opt for a flight that leaves from MidAmerica-St. Louis Airport (BLV) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**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 MidAmerica-St. Louis Airport (BLV) to Portsmouth Intl. Airport (PSM) last-minute?
Waiting until just before your departure to book a flight from BLV to PSM generally means paying more. While you may come across some last-minute offers, they aren't always guaranteed. Keep your travel schedule open for the best chance of snagging a bargain.
Is it cheaper to book a BLV to PSM flight and hotel package?
Booking a BLV to PSM flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels in one place. Pick from our extensive range of hotels and then add car rentals, flights and activities to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from MidAmerica-St. Louis Airport (BLV) to Portsmouth Intl. Airport (PSM)?
Typically, it's possible to reschedule or cancel your BLV to PSM flight. However, for bookings made more than 24 hours ago, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find more information on our Customer Service portal.

Travel information

Origin airport
MidAmerica-St. Louis
Destination airport
Portsmouth Intl.
Distance
1038 mi

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Belleville to Portsmouth Flights

The cheapest times to fly from Belleville to Portsmouth

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

 

The best time to book a flight from Belleville to Portsmouth

Sunday is one of the best days to book for cheap flights from Belleville to Portsmouth: 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 Belleville to Portsmouth

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 Belleville to Portsmouth 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 Belleville to Portsmouth 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 Belleville to Portsmouth 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.

 

Belleville to Portsmouth Flights

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