Port Alexander Seaplane Base

Overview

Port Alsworth Airport (IATA: PTD) is a remote regional airport located on the shores of Lake Clark in southwestern Alaska. It serves as the primary air gateway for the small community of Port Alsworth and the surrounding Lake Clark National Park and Preserve. Unlike major commercial hubs, this is a bush airport—a vital link for residents, park visitors, and fishermen heading to the region’s pristine wilderness. There is no control tower, and operations are limited to daylight hours. The airport features a single gravel runway and handles primarily small aircraft, including chartered floatplanes and wheeled planes. If you're flying into Port Alsworth, you're likely starting an adventure in one of Alaska's most remote and spectacular landscapes.

Peak Hours and Flight Scheduling

The busiest times at Port Alsworth Airport are in the late afternoon, particularly between 4:00 pm and 5:00 pm. This is when most returning sightseeing flights and charter services land, bringing passengers back from day trips into the park or fishing excursions. If you are departing, plan to arrive earlier in the day to avoid the afternoon rush. Conversely, if you are arriving, be prepared for a flurry of activity during these hours, including multiple planes taxiing and passengers disembarking. The airport is otherwise quiet, with flights concentrated around daylight hours. Because the airport has no regular scheduled airline service, all flights are operated by air taxis or private charters—book well in advance and confirm your flight times with your operator, as schedules can be flexible depending on weather and demand.

Amenities and Services

Port Alsworth Airport is a minimal facility—there are no restaurants, shops, or waiting lounges. The terminal is a simple building with basic shelter. Restrooms are available, but do not expect any food or beverage concessions. Travellers should bring their own snacks and water, especially if you have a layover or are waiting for a connecting flight. There is no Wi-Fi or cellular service in the immediate vicinity, so plan to disconnect or rely on satellite communications. The airport is essentially a paved strip with a small parking area for private vehicles. If you are flying out, arrange ground transportation in advance, as there is no taxi stand. Many lodges and tour operators include airport transfers as part of their package. For those staying in Port Alsworth, the town is within walking distance—about a mile from the airport—but be prepared for a gravel road walk in Alaskan weather.

About Port Alsworth Airport

Port Alsworth is situated on the southern shore of Lake Clark, about 80 miles southwest of Anchorage as the crow flies, but inaccessible by road. The airport was originally built to support the community and the numerous fishing lodges and bear-viewing camps that dot the lake. It is a designated Land and Facility airport by the State of Alaska Department of Transportation, primarily serving general aviation. The 3,150-foot gravel runway (runway 9/27) can accommodate small to medium-sized aircraft such as the Cessna 208 Caravan, Piper Navajo, and various bush planes. Floatplanes also operate off the lake adjacent to the airport, but they use a separate water landing area.

The airport's primary role is as a hub for tourism into Lake Clark National Park, a vast wilderness of lakes, glaciers, and volcanic peaks. The park is famous for brown bear viewing, especially at Brooks Falls, and for world-class salmon fishing. In summer, the airport sees a steady stream of sport fishermen and photographers. In winter, traffic drops dramatically, but some hardy travellers come for winter camping and skiing. The community of Port Alsworth itself has a year-round population of under 200, with services including a lodge, a general store, and a small museum. The airport is also used for emergency medical evacuations and supply flights, making it a critical infrastructure piece for this remote area.

Getting There and Away

There are no commercial airlines serving Port Alsworth. Access is exclusively via charter air services or private aircraft. The most common point of origin is Anchorage's Ted Stevens International Airport (ANC) or Lake Hood Seaplane Base, from which several air taxi companies operate flights to Port Alsworth. Flight time from Anchorage is roughly 45 minutes to an hour, depending on aircraft. Alternatively, you can fly from other bush communities like Iliamna or King Salmon. Because schedules are flexible, you will need to coordinate directly with your chosen operator. Expect seasonal pricing—flights in peak summer (July–August) are more expensive and book up months in advance.

Tips for Your Visit

• Bring cash: The general store in town may not accept credit cards, and there are no ATMs at the airport.
• Dress for the weather: Even in summer, Lake Clark can be cool and rainy; layers and waterproof gear are essential.
• Confirm baggage allowances: Bush planes have strict weight limits; check with your charter operator before packing.
• Wildlife awareness: Bears are common in the area; never leave food unattended and follow park guidelines.
• No rental cars: Transportation in Port Alsworth is limited to walking, lodge shuttles, or hiring a local driver.

Conclusion

Port Alsworth Airport is a no-frills entry point to one of Alaska's most stunning natural areas. While amenities are scarce, the absence of crowds and the pure wilderness more than compensate. Plan ahead, pack accordingly, and embrace the adventure that begins as soon as you step off the plane.