Title: Cheap Flights from Portsmouth (PSM) to Tri-Cities (TRI) - Expedia.ca ![Tri-Cities showing street scenes and a festival as well as a couple](https://images.trvl-media.com/place/6023345/09558f37-fa95-44de-b26c-758a878ddaa4.jpg?impolicy=fcrop&w=1200&h=500&q=medium) Photo by Tennessee Department of Tourist Development ![](https://images.trvl-media.com/place/6023345/09558f37-fa95-44de-b26c-758a878ddaa4.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # Cheap Flights from Portsmouth (PSM) to Tri-Cities (TRI) - [Roundtrip](?flightType=roundtrip) - [One-way](?flightType=oneway) - [Multi-city](?flightType=multicity) ### Travellers Adults ChildrenAges 2 to 17 InfantsYounger than 2 EconomyPremium economyBusiness classFirst class Leaving from Going to Departing Returning Add a place to stay Add a car Direct flights only ## Popular airlines from Portsmouth, NH (PSM-Portsmouth Intl.) to Tri-Cities, TN (TRI-Tri-Cities Regional) - ![Air Canada](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AC.svg) Air Canada [](https://www.expedia.ca/Flights-Search?leg1=from:psm,to:tri,departure:26/10/2025TANYT&leg2=from:tri,to:psm,departure:02/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AC"}}]) - ![WestJet](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_WS.svg) WestJet [](https://www.expedia.ca/Flights-Search?leg1=from:psm,to:tri,departure:26/10/2025TANYT&leg2=from:tri,to:psm,departure:02/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"WS"}}]) - ![Flair Airlines](https://a.travel-assets.com/air/airlines/f8_sq.svg) Flair Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:psm,to:tri,departure:26/10/2025TANYT&leg2=from:tri,to:psm,departure:02/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"F8"}}]) - ![American Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AA.svg) American Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:psm,to:tri,departure:26/10/2025TANYT&leg2=from:tri,to:psm,departure:02/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AA"}}]) - ![United](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_UA.svg) United [](https://www.expedia.ca/Flights-Search?leg1=from:psm,to:tri,departure:26/10/2025TANYT&leg2=from:tri,to:psm,departure:02/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"UA"}}]) - ![Delta](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_DL.svg) Delta [](https://www.expedia.ca/Flights-Search?leg1=from:psm,to:tri,departure:26/10/2025TANYT&leg2=from:tri,to:psm,departure:02/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"DL"}}]) - ![Porter Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_PD.svg) Porter Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:psm,to:tri,departure:26/10/2025TANYT&leg2=from:tri,to:psm,departure:02/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"PD"}}]) ![notification illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__notification.svg) ### Be in the know Get alerts if flight prices drop or rise\* ![deals illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__deals.svg) ### Book smarter Save up to 30% on select hotels after you book a flight\* ![trophy illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__trophy.svg) ### Earn twice Earn your airline miles on top of our rewards [Sign in](https://www.expedia.ca/login) Flight from Portsmouth to Tri-Cities (PSM - TRI) route information | Origin airport | Portsmouth Intl. | | --- | --- | | Destination airport | Tri-Cities Regional | | Distance | 1223 km | ## Portsmouth to Blountville Flights **The easy way to book your flights from Portsmouth to Tri-Cities**  With Expedia, it’s simple to find and book flights to Tri-Cities from Portsmouth whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from airlines that cover this route. There are nonstop flights to Tri-Cities Regional, too.   Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Portsmouth to Tri-Cities today, tomorrow, or this week.   **Save dollars with cheap flights from Portsmouth Intl., PSM to Tri-Cities Regional, TRI**  Sort your search results by price to find great deals on your flight from Portsmouth to Tri-Cities—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Tri-Cities from Portsmouth currently is just rising to .   Here are more money-saving tips:  - Fly in when flight prices are normally at their lowest  - Book about a month to 6 weeks before you travel for the best prices to Tri-Cities   - Avoid peak season and weekends when flights can cost more - Early morning and late-night flights are sometimes cheaper, so try varying your travel times  - One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free!  **Reasons to choose Expedia for your flight to Tri-Cities from Portsmouth**  Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Tri-Cities with Expedia today. ## Frequently asked questions ### How much is a flight from Portsmouth Intl. Airport (PSM) to TRI? > The lowest price advertised for a round-trip flight between PSM and Tri-Cities Airport is . But you better move fast. This figure is based on fares offered within the last 7 days on Expedia for flights departing within the next year. Prices and availability are subject to change. Additional terms apply. ### Do I need to pay a cancellation fee if I cancel my flight from Portsmouth Intl. Airport at Pease to Tri-Cities Regional Airport (TRI)? > The majority of flights can be cancelled online, but every air carrier has a different set of terms and conditions. If you do decide to cancel your flight, check out our [Customer Service Portal](https://www.expedia.ca/helpcenter) and follow the instructions. ### How do I find cheap flights from Portsmouth Intl. Airport at Pease to Tri-Cities Airport that have flexible change policies? > Many airlines will allow you to reschedule your flight without charging a fee. All you pay is the cost difference between the two flights. When looking for PSM to Tri-Cities Airport flights, you'll see a "No change fees" box for you to tick. ### How far is the flight from PSM to Tri-Cities Regional Airport (TRI)? > With a flight distance of 1,250 kilometres, it's just a hop from Portsmouth Intl. Airport at Pease to TRI. It might be a quick one, but it's still worth packing something to read. ### Which airlines fly direct from Portsmouth Intl. Airport (PSM) to Tri-Cities Regional Airport (TRI)? > Unfortunately, there aren't any airlines that fly direct between Portsmouth Intl. Airport at Pease and TRI. You'll need to book a flight with one or more stops. ### Are Portsmouth Intl. Airport (PSM) to Tri-Cities Regional Airport (TRI) flight tickets cheaper when they're purchased at the last minute? > Flight prices change all the time, so there are no guarantees. While last-minute flight deals between Portsmouth Intl. Airport at Pease and Tri-Cities Airport are of course possible, it also makes sense to keep an eye on prices well before you fly. In fact, some air carriers publish their prices up to 12 months before the departure date. Expedia is continuously updating the biggest airfare bargains around, so check back often and be ready to book when the fares dip. ## Explore a world of travel with Expedia - Lodging - Flights - Packages - Cars - Vacation Rental ### Lodging - [B&B in Tri-Cities](https://www.expedia.ca/Tri-Cities-Bed-And-Breakfast.d6023345-aaBedAndBreakfast.Travel-Guide-Accommodation) - [Cabin Rentals in Tri-Cities](https://www.expedia.ca/Tri-Cities-Cabins.d6023345-aaCabins.Travel-Guide-Accommodation) - [Condo Resorts in Tri-Cities](https://www.expedia.ca/Tri-Cities-Condominium-Resort.d6023345-aaCondominiumResort.Travel-Guide-Accommodation) - [Cheap Hotels in Tri-Cities](https://www.expedia.ca/Tri-Cities-Hotels-Cheap-Hotels.0-0-d6023345-tCheapHotels.Travel-Guide-Filter-Hotels) - [Hotels & Resorts for Couples in Tri-Cities](https://www.expedia.ca/Tri-Cities-Hotels-Couples-Resorts-Hotels.0-0-d6023345-tCouplesResortsHotels.Travel-Guide-Filter-Hotels) - [Historic Hotels in Tri-Cities](https://www.expedia.ca/Tri-Cities-Hotels-Historic-Hotel.0-0-d6023345-tHistoricHotel.Travel-Guide-Filter-Hotels) - 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