Cheap Flights from SEA to IPT: When to Fly from Seattle to Williamsport

The cheapest times to fly from SEA to IPT are

• January 1st to February 25th
• April 16th to June 17th (except the week of May 14th)
• July 9th to July 22nd
• October 8th to November 18th

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from SEA to IPT is late May to early June. Prices can be as high as $1050 for Sunday flights during mid to late November, or as low as $344 for Wednesday flights around late May to early June.

When to Fly to Williamsport

Flying from Seattle, WA (SEA) to Williamsport, PA (IPT) will usually cost between $347 to $733 per person if booking more than four weeks in advance. On average the very cheapest time to fly is late May to early June with an average ticket price of $383. Due to high demand the most expensive time to fly is mid to late November, with an average price of $634. Planning your trip to low-cost times can easily save you $251 on economy flights and even more on first-class flights. Generally, any price below $428 can be considered a good price for a round-trip SEA to IPT flight.

See below for a graph of average weekly prices for the SEA to IPT route. All prices are for round-trip tickets in USD.

Compared to other flights, the SEA to IPT flight is much cheaper than the average and costs much less than the average flight leaving from Seattle. The average price per mile (for a direct flight) is $0.12, which is far below average.

Flight Prices by Day of the Week

Wednesday is usually the cheapest day to depart and return on this flight. Sundays are the most expensive days to fly out or take a return trip. Selecting flights on the least expensive days could save you up to $151 (27%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Wednesday and returning a week later will cost an average of $408. Return trip prices are from the IPT to SEA flight, and often highlight the quality of our data in showing the same trend.

Nonstop Flights and Layovers

Travelers looking to fly from SEA to IPT can generally find a 1-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 5 hour 2 minutes may not be realistic.

Alternative Nearby Airports

Champion Traveler tells you which airports are nearby and whether tickets might be cheaper alternative airports nearby. Sometimes it’s worth it to fly into a closer airport and then commute to your destination. Remember that there is not usually a nonstop flight from SEA to IPT while comparing.

Flight Questions Answered

Still have questions about flying from SEA to IPT? We’ve got answers.

Which airlines fly this route?

You can find 2 major airlines flying this route most often: Alaska, American, and potentially more during busy seasons.

How far away is it from Williamsport Regional Airport to Seattle/Tacoma International Airport?

The distance between the two airports is roughly 2250 miles or 3621 kilometers.

How long does it take to fly from SEA to IPT?

The real-world flight time for a nonstop SEA to IPT flight is about 5 hour 2 minutes.

How many flights go between Seattle, WA and Williamsport, PA?

It depends on the day of the week and the date, but a typical day might have around 68 available flights from SEA to IPT.

Airport Location Info

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.