$49 Cheap Flights to Port Jefferson, NY

View $49 flight on Mon, Aug 10, 2026Opens in a new window

Popular airlines to Port Jefferson

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How much is the cheapest flight to Port Jefferson?

Prices were available within the past 7 days and start at $49 for one-way flights and $77 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Wed, Oct 14 - Wed, Oct 21
LAX
Los Angeles
LGA
New York
$230 Roundtrip, just found
$230
Roundtrip
just found
Select Frontier Airlines flight, departing Wed, Oct 14 from Los Angeles to New York, returning Wed, Oct 21, priced at $230 just found
JetBlue Airways
Fri, Aug 7 - Sat, Aug 15
LAX
Los Angeles
EWR
New York
$279 Roundtrip, just found
$279
Roundtrip
just found
Select JetBlue Airways flight, departing Fri, Aug 7 from Los Angeles to New York, returning Sat, Aug 15, priced at $279 just found
Delta
Wed, Aug 19 - Sat, Aug 22
LAX
Los Angeles
EWR
New York
$288 Roundtrip, just found
$288
Roundtrip
just found
Select Delta flight, departing Wed, Aug 19 from Los Angeles to New York, returning Sat, Aug 22, priced at $288 just found
Alaska Airlines
Fri, Jul 10 - Thu, Jul 16
LAX
Los Angeles
EWR
New York
$289 Roundtrip, just found
$289
Roundtrip
just found
Select Alaska Airlines flight, departing Fri, Jul 10 from Los Angeles to New York, returning Thu, Jul 16, priced at $289 just found
United
Sun, Aug 16 - Wed, Aug 19
LAX
Los Angeles
EWR
New York
$307 Roundtrip, just found
$307
Roundtrip
just found
Select United flight, departing Sun, Aug 16 from Los Angeles to New York, returning Wed, Aug 19, priced at $307 just found

Alternative airports near Port Jefferson

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to MacArthur ISP. Cheapest and Closest option available. Average driving time to city center is 26 minutes. Flights from $332
ISP
MacArthur
CheapestClosest
Average driving time to city center26 min
Flights from $332

Frequently asked questions

What month is the cheapest to fly to Port Jefferson?
Plan your trip for October if you're looking for a deal on your fare. It's the cheapest month to fly to Port Jefferson. Try to avoid traveling during busy periods such as major public holidays or during big events.
Which US cities have the cheapest flights to Port Jefferson?
Land cheap flights to Port Jefferson from Los Angeles, San Francisco and Boston. These cities generally offer the best fares to this much-loved destination. But remember that stopovers, seasonality and demand will also have an influence on rates, so remain flexible and book when you see a bargain.
Which US cities fly direct to Port Jefferson?
Choose from 58 US destinations with direct flights to Port Jefferson. When you book on Expedia, click on "Direct flights only" to find nonstop itineraries. Fly to Port Jefferson from any of these major cities:

  • Los Angeles
  • San Francisco
  • Boston
  • Miami
  • Orlando

How to find a cheap flight to Port Jefferson?
Book in advance or look for a cheap flight to Port Jefferson during off-peak months like January and February. Jetting off on a Thursday could also save you 16% on average compared to a Sunday flight.* The Expedia app makes it even easier to know the right time to book. Just turn on the toggle for "Watch prices" and you'll receive an alert when there's a better deal.*Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation's (ARC) global airline sales database. Percentages noted are averages.
How to get a cheap last-minute flight to Port Jefferson?
Staying flexible with your travel plans might help you find last-minute deals on cheap flights to Port Jefferson. To see all the available options, consider looking at different ticket types, changing your Port Jefferson vacation dates, jetting out of an alternative airport or going with another carrier.
How far in advance should I book a flight to Port Jefferson?
Find the departure dates you want and a fare you'll love by booking your domestic flight to Port Jefferson up to 28 days in advance. Lock in tickets between two and four months ahead if you're traveling to Port Jefferson from an international destination.**Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation's (ARC) global airline sales database. Percentages noted are averages.
Which day of the week is the cheapest day to buy a plane ticket to Port Jefferson?
Sundays are generally the best day to book a cheap flight to Port Jefferson, where you can save 8% on average compared to Fridays. If you purchase tickets on a Friday, expect to pay more as this is typically the most expensive day.**Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation's (ARC) global airline sales database. Percentages noted are averages.
Which airlines fly to Port Jefferson?
Dig out your passport, pack your bags and select from these major airlines that offer flights to Port Jefferson:

  • Delta Air Lines - 12,252 flights to Port Jefferson each month, including 6,687 flights to LaGuardia Airport (LGA) per month.
  • United Airlines - 9,946 flights to Port Jefferson each month, including 9,000 flights to Liberty Intl. Airport (EWR) per month.
  • American Airlines - 5,988 flights to Port Jefferson each month, including 3,362 flights to LaGuardia Airport (LGA) per month.

Where do you fly into Port Jefferson?
When flying to Port Jefferson, the main airport for arrivals is MacArthur Airport (ISP). You can also head for nearby hubs like Tweed - New Haven Regional Airport (HVN), Westchester County Airport (HPN) or John F. Kennedy Intl. Airport (JFK). Another great option to keep in mind when you fly to Port Jefferson is LaGuardia Airport (LGA).
Can I save money by booking a Port Jefferson trip package?
You could potentially save hundreds of dollars if you choose a Port Jefferson flight and hotel package deal on Expedia. And you'll save yourself hassle by having all your travel arrangements in one place. Try bundling flights and accommodations with extras such as car rentals and activities for your own customized Port Jefferson escape.
Can I change or cancel my flight to Port Jefferson?
It's often possible to cancel or change your flight to Port Jefferson. Many airlines let you cancel your ticket for free within 24 hours of making your booking. However, some flights are non-refundable, and airlines may offer you credit for a future trip in place of a direct refund. To find affordable flights to Port Jefferson with flexible change policies, select the "Changes included" or "No cancel fee" filters when you search. Want more details? Check out our Customer Service Portal.

*Flight schedules are subject to change.

*Available to One Key members.

 

Book with confidence

Tips to find the cheapest flights to Port Jefferson

The cheapest day to fly

Get started finding a cheap flight to Port Jefferson on Expedia by either choosing a deal on this page or entering into the search bar your travel dates, origin airport, and whether you want roundtrip or one-way airfare. You can filter for flexibility, number of stops, airline, and departure/arrival times to find the best flight for you.

The cheapest month to fly

October is the cheapest month to fly to Port Jefferson. This coincides with the low season when fewer people travel. Whichever month you travel in, though, be sure to book at least a month in advance if you want to score cheap tickets to Port Jefferson. ARC's data shows that domestic flights booked 28 days or more before departure are typically 24% cheaper than those booked last minute.

The most affordable time to book a flight

Typically, a Sunday can be the cheapest time to book a flight to Port Jefferson, according to ARC’s data. On average, you could save between 6% and 13% by booking on a Sunday instead of a Friday, which is the most expensive day to make a reservation.

The cheapest round-trip tickets to Port Jefferson

The lowest price for round-trip flights to Port Jefferson in 2026 starts from from $77, while one-way tickets start from from $49. Expedia's effective search tool is one of the best ways to find a budget airfare. Simply enter your dates, and within seconds, it'll show you a vast selection of the cheapest flights to Port Jefferson. If you have a preferred departure time or airline, you can use the handy filters to customize your search.

The cheapest airlines flying to Port Jefferson

Frontier Airlines, JetBlue Airways, United, Alaska Airlines, Delta are just some of the airlines that can typically offer cheap tickets to Port Jefferson. You can find their most affordable flights by using the “airline” search filter and then sorting prices from low to high. As a trusted partner of the world's leading airlines, Expedia offers you some of the best airfare deals to Port Jefferson and countless more destinations worldwide.

The most affordable airports to fly into

To view the cheapest airports to fly into for Port Jefferson, simply order your search results from lowest to highest price. Expedia's search tool compares flight prices for all airports close to your destination, so you don't have to manually search them one by one to find the cheapest flight to Port Jefferson. If you have a preferred place to fly into, take advantage of the “arrival airport” filter to narrow down your search on Expedia.

Save with a package

With Expedia's amazing package deals, you could save hundreds of dollars by booking your Port Jefferson plane tickets together with your accommodations, car rental, or activities. Just select the search wizard's “package” option to view some of the cheapest deals. Look out for the green savings label to see how much you're saving.

Date flexibility for the cheapest flights to Port Jefferson

If you can be flexible with your travel dates, it's a good idea to broaden your search by comparing prices on different days. This will open up more options, meaning you could uncover a less expensive flight to Port Jefferson.

Stopover savings

The cheapest tickets to Port Jefferson are sometimes those with a stopover. Book one of these flights, and you'll change planes at an airport en route to Port Jefferson. While the overall travel time might be longer than a non-stop flight, you may decide it's worth it for the money saved.

Get Expedia's Price Drop Protection

Price Drop Protection means that if your flight gets cheaper after booking, you'll be credited the difference*. This gives you peace of mind that you're getting one of the cheapest flights to Port Jefferson for your chosen departure. Expedia's Price Drop Protection is available for a small fee but is free to One Key Gold and Platinum tier members.

*Terms apply.

Use our Price Tracking feature

Expedia's Price Tracking feature is another great tool that removes the guesswork from finding cheap flights to Port Jefferson. Simply download the free Expedia app to your smart device and activate Port Jefferson flight price alerts for your travel dates. There's even a price predictor tool that uses historical data to indicate the best time to book, giving you peace of mind that you'll nab the lowest prices.

Book with Expedia

As well as Price Drop Protection and Price Tracking, Expedia's close partnership with a vast selection of the world's leading airlines means you're sure to find cheap flights to Port Jefferson. Plus, the One Key rewards program lets you earn real cash rewards on most bookings that you can use to save money on future trips. Best of all, it's free to join, and members often unlock exclusive discounts, too.

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

Tips to find the cheapest flights to Port Jefferson

Travel information

Destination airport
LaGuardia
Destination airport IATA code
LGA
Destination city name
New York
Roundtrip price
$77

Trending flights to Port Jefferson

Prices were available within the past 7 days and start at $49 for one-way flights and $77 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Thu, Aug 20 - Wed, Aug 26
ATL
Atlanta
LGA
New York
$77 Roundtrip, found 2 hours ago
$77
Roundtrip
found 2 hours ago
Select Frontier Airlines flight, departing Thu, Aug 20 from Atlanta to New York, returning Wed, Aug 26, priced at $77 found 2 hours ago

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