Title: Cheap Flights from New York (LGA) to Portsmouth (PSM) - Expedia.ca ![](https://images.trvl-media.com/place/6057414/a733ee3b-8e9c-48cc-bec5-cd01636327e0.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://a.travel-assets.com/travel-assets-manager/fallback-images-brand/bex_flights_v2.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # Cheap Flights from New York (LGA) to Portsmouth (PSM) - [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 LaGuardia Airport (LGA) to Portsmouth, NH (PSM-Portsmouth Intl.) - ![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:lga,to:psm,departure:18/10/2025TANYT&leg2=from:psm,to:lga,departure:25/10/2025TANYT&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:lga,to:psm,departure:18/10/2025TANYT&leg2=from:psm,to:lga,departure:25/10/2025TANYT&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:lga,to:psm,departure:18/10/2025TANYT&leg2=from:psm,to:lga,departure:25/10/2025TANYT&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:lga,to:psm,departure:18/10/2025TANYT&leg2=from:psm,to:lga,departure:25/10/2025TANYT&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:lga,to:psm,departure:18/10/2025TANYT&leg2=from:psm,to:lga,departure:25/10/2025TANYT&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:lga,to:psm,departure:18/10/2025TANYT&leg2=from:psm,to:lga,departure:25/10/2025TANYT&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:lga,to:psm,departure:18/10/2025TANYT&leg2=from:psm,to:lga,departure:25/10/2025TANYT&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 New York to Portsmouth (LGA - PSM) route information | Origin airport | LaGuardia | | --- | --- | | Destination airport | Portsmouth Intl. | | Distance | 358 km | ## New York to Portsmouth Flights **The easy way to book your flights from New York to Portsmouth**  With Expedia, it’s simple to find and book flights to Portsmouth from New York 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 Portsmouth Intl., 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 New York to Portsmouth today, tomorrow, or this week.   **Save dollars with cheap flights from LaGuardia, LGA to Portsmouth Intl., PSM**  Sort your search results by price to find great deals on your flight from New York to Portsmouth—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Portsmouth from New York 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 Portsmouth   - 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 Portsmouth from New York**  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 Portsmouth with Expedia today. ## Frequently asked questions ### How much is a flight from LGA to PSM? > If you're planning on travelling from LaGuardia Airport to Portsmouth Intl. Airport at Pease, round-trip flights start from . This price is based on fares listed within the last 7 days on Expedia for flights departing within the next year, so don't wait around. Book today and save yourself money and time. Prices and availability are subject to change. Additional terms apply. ### Do I need to pay a cancellation fee if I cancel my flight from LaGuardia Airport (LGA) to Portsmouth Intl. Airport (PSM)? > Most flights can be conveniently cancelled online, but whether you are charged a fee depends on your airline. If you do need to cancel your break, follow the easy instructions in the [Customer Service Portal](https://www.expedia.ca/helpcenter). ### How do I find cheap flights from LaGuardia Airport (LGA) to Portsmouth Intl. Airport at Pease that have flexible change policies? > Select our "No change fees" filter to find flexible travel options for your flight from LaGuardia Airport (LGA) to PSM. This allows you to snag a fantastic price ahead of time and still have the freedom to make changes without any additional fees. You'll just need to pay the difference in fare. ### How far is the flight from LaGuardia Airport to PSM? > The flight distance from LGA (LGA) to PSM (PSM) is only 360 kilometres. You'll be walking down the air bridge and picking up your bags from the carousel in the blink of an eye. ### Which airlines fly direct from LaGuardia Airport to Portsmouth Intl. Airport at Pease? > Unfortunately, there are no airlines that fly direct between LGA and Portsmouth Intl. Airport (PSM). You'll have to book a flight with one or more stops. ### Are LGA to PSM flight tickets cheaper when they're purchased at the last minute? > It is possible to nab a great last-minute deal from LGA to Portsmouth Intl. Airport (PSM), but there's no guarantee. As many airlines advertise prices up to a year in advance, it's worth keeping an eye on fares early and being ready to book when you see a good bargain. Expedia compares air carrier prices and updates flight deals regularly, so you can rest assured you're always seeing the latest offers. ## Explore a world of travel with Expedia - Lodging - Flights - Packages - Cars - Other ### Lodging - [Hotels near Fox Run Mall](https://www.expedia.ca/Fox-Run-Mall-Hotels.0-l6127392-0.Travel-Guide-Filter-Hotels) - [B&B in Newington](https://www.expedia.ca/Newington-Bed-And-Breakfast.d3000447070-aaBedAndBreakfast.Travel-Guide-Accommodation) - [Newington Hotels](https://www.expedia.ca/Newington-Hotels.d3000447070.Travel-Guide-Hotels) - [Pet-Friendly Hotels in North End](https://www.expedia.ca/North-End-Portsmouth-Hotels-Pet-Friendly-Hotel.0-n905208398518345728-0-tPetfriendlyHotel.Travel-Guide-Filter-Hotels) - [Oceanfront Hotels in Pease](https://www.expedia.ca/Pease-Portsmouth-Hotels-Oceanfront-Hotels.0-n553248635976474640-0-tOceanfrontHotels.Travel-Guide-Filter-Hotels) - [Spa Hotels in Pease](https://www.expedia.ca/Pease-Portsmouth-Hotels-Spa-Hotel.0-n553248635976474640-0-tSpaHotel.Travel-Guide-Filter-Hotels) - 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