WA Ferry Tracker › Port Townsend to Coupeville (Keystone) Ferry
🔔 Free ferry alerts on WhatsApp| Departs | Port Townsend terminal, 1301 Water Street, Port Townsend (Olympic Peninsula) |
|---|---|
| Arrives | Coupeville terminal (often called Keystone), 1400 South SR 20, Whidbey Island |
| Crossing time | about 35 minutes (WSF schedule) |
| Reservations | Vehicles, both directions (stand-by also possible) |
| Boat (fall 2026) | One Kwa-di Tabil-class ferry, M/V Kennewick: up to 64 vehicles and 748 passengers |
| Operator | Washington State Ferries (WSDOT) |
Why this route is different
Most Puget Sound ferries shuttle across sheltered water on big boats. Port Townsend/Coupeville doesn't. It crosses Admiralty Inlet, the open mouth of Puget Sound, and lands at Keystone Harbor on Whidbey Island, a small, shallow harbor next to Fort Casey State Park. Because of that harbor, the route runs WSF's small Kwa-di Tabil-class boats. The fall 2026 boat, the Kennewick, carries up to 64 vehicles. The Olympic-class boats on the busy central routes carry 144. So a "full" sailing here means only a few dozen cars, and one tour group or a line of RVs can take a big share of it.
In fall 2026 WSF lists a single vessel on the route (one galley schedule, "Vessel #1"). With one boat, the gap between sailings is longer than on two-boat routes, so missing a sailing usually costs you more than an hour. WSF changes the schedule by season, so check the current one before you plan the rest of your day around a departure.
Tidal cancellations: check them before you book
WSF publishes a list of sailings it cancels in advance because of tides on this route (and on the Anacortes/San Juan route). At very low tides the water at Keystone gets too shallow for the boat to dock safely. WSF posts these tidal cancellations for the whole season on its schedule site. For fall and winter 2026–27 the list includes several days in each of November and December, plus dates in January, February and March. On those days one or two round trips are dropped, and some days get a replacement sailing at a different time.
What that means for you:
- Look at the tidal cancellation list before you pick a sailing, especially for early-morning or evening trips in winter. A sailing that appears in the regular schedule may not run on your date.
- If you're connecting to something time-critical (a flight from Sea-Tac, a ferry back from Kingston, a check-in time), build in a backup sailing.
- The route also has a "low tide warning" note on WSF's schedule pages. Read it once so the cancellations don't surprise you.
Wind, weather and unplanned cancellations
Admiralty Inlet is exposed to wind from the Strait of Juan de Fuca, and strong winds, rough water or fog can delay or cancel sailings with little warning. That happens more in winter storms. Mechanical problems or crew shortages also hit harder here: with one small boat on the route, there's often no spare boat nearby. On a day with an iffy forecast:
- Check WSF travel alerts before you leave, and sign up for WSDOT's route email or text alerts.
- Know your fallback. If the route shuts down, the way around to Whidbey is a long drive: the Hood Canal Bridge, a central Sound ferry (Kingston–Edmonds or Bainbridge–Seattle), I-5 and then Mukilteo–Clinton, or north over Deception Pass. Plan for several hours.
- If your sailing is cancelled and you hold a reservation, follow the instructions in WSF's alert or call WSF; don't assume it moves to the next boat automatically.
Reservations in one minute
Port Townsend/Coupeville is one of only two WSF routes that take vehicle reservations (the other is Anacortes/San Juan Islands). Reservations are one-way, so book each direction. Space opens in a seasonal release, and WSF holds some space back for stand-by. For the winter 2026–27 season (Dec. 27 through March 20, 2027), WSF moved the two-month release to Tuesday, Nov. 10, 2026 at 10 a.m. and will use a virtual waiting room. Walk-ons and cyclists never need a reservation. We cover the details (release timing, arrival cutoffs, no-show fees and what to do when it's full) in our Port Townsend–Coupeville reservations guide.
Getting to the Port Townsend terminal
The terminal is right on Water Street at the edge of Port Townsend's historic downtown. WSDOT's directions: from the Kingston ferry or Poulsbo, cross the Hood Canal Bridge on SR 104, take the Port Ludlow/Chimacum/SR 19 exit and follow it to the dock. From elsewhere on the Olympic Peninsula, take US 101 to SR 20 east, which becomes Sims Way and then Water Street.
Parking: downtown parking is very limited and street parking is two-hour. If you're walking on, WSDOT recommends the Haines Place Park & Ride lot on the way into town, then a short local bus ride (Jefferson Transit) or a walk. WSDOT also says a nearby bank lot is open for parking only on weekends after 1 p.m.
Getting to the Coupeville (Keystone) terminal
The terminal sits on SR 20 south of the town of Coupeville, next to Fort Casey State Park, not in town. From the Clinton ferry, follow SR 525 north, turn left on SR 20 and follow the signs. From Oak Harbor or Deception Pass, take SR 20 south past Coupeville. WSDOT says northbound arrivals use a turnaround by the terminal to change direction before the tollbooth. In November 2026 WSDOT also flagged the SR 536 bridge closure in Mount Vernon. If you normally take SR 536 to reach SR 20, use the signed detour via I-5 and SR 20 and allow extra time.
Parking: there's parking along the road and at the state park, but WSDOT notes none of it is secured. Island Transit buses serve Whidbey Island if you don't want to leave a car.
Walking on or cycling
- Walk-on passengers board over the car deck at both ends. There's no overhead loading ramp at either terminal, so listen for the crew's signal.
- On the Port Townsend side you step off into a walkable downtown of shops, cafes and Victorian buildings. On the Keystone side you're in the countryside: Fort Casey and its lighthouse are next door, but downtown Coupeville is several miles away, so check bus times first.
- Cyclists skip the car line, go through a tollbooth, and should arrive about 20 minutes early to board first. The boat has upper-deck bike racks plus space on the car deck. Walk your bike on and off.
On board
The crossing is short, but there's a galley. WSDOT's fall 2026 hours are 6:30 a.m.–7:45 p.m. Monday to Wednesday and 6:30 a.m.–9:15 p.m. Thursday to Sunday. There are restrooms on the main passenger deck and an elevator from the car deck. If you need to park near it, tell the ticket seller when you arrive. On a clear day, go outside: the inlet has views of the Olympics, Mount Baker and the old Fort Worden and Fort Casey batteries.
Tall vehicles, RVs and trailers
WSDOT warns that boats on this route have limited height clearance and that tall vehicles may be loaded out of order. The Kennewick's listed car-deck clearance is 14 feet 5 inches, and tall-deck space is limited (WSDOT lists 25 spaces). When you book, enter your real vehicle length and height, including racks, bikes on the roof and trailers, so the space you reserve matches what you're driving.
The Whidbey–Olympic loop
A lot of people use this ferry as one side of a loop: Seattle → Mukilteo–Clinton ferry → drive up Whidbey → Coupeville → Port Townsend → Hood Canal Bridge → Kingston–Edmonds or Bainbridge–Seattle. Only the Port Townsend leg takes reservations, so book that one first and plan the first-come, first-served ferries around it. Leave plenty of buffer before a reserved sailing. The Mukilteo and Kingston lines can run to multiple boats on summer weekends.
How WA Ferry Tracker helps
WA Ferry Tracker is free and independent. If the Port Townsend or Coupeville sailing you want shows no reservation space, set an alert with your date and the times you'd accept. It checks WSF's public availability every few minutes and sends you a WhatsApp message when a spot opens, so you can book it on the official WSF site. More on that: Port Townsend–Coupeville reservation alerts. It isn't affiliated with WSF and never books or resells reservations.
FAQ
How long is the ferry from Port Townsend to Coupeville?
About 35 minutes dock to dock, according to the WSF schedule. Allow extra time for loading, and more if you're a stand-by vehicle.
Is the Coupeville ferry the same as the Keystone ferry?
Yes. WSF calls the Whidbey terminal Coupeville, but it sits at Keystone Harbor on SR 20 next to Fort Casey State Park, several miles south of downtown Coupeville.
Why are Port Townsend ferry sailings cancelled for tides?
At very low tides Keystone Harbor is too shallow for the ferry to dock safely, so WSF cancels or moves certain sailings ahead of time and posts a tidal cancellation list for each season. Wind and rough water in Admiralty Inlet can also cancel sailings on the day.
Do I need a reservation for the Port Townsend–Coupeville ferry?
Not as a walk-on or cyclist. With a car, a reservation is strongly recommended in both directions because the boat holds only about 64 vehicles. Some space is kept for stand-by.
Where do I park to walk on in Port Townsend?
WSDOT recommends the Haines Place Park & Ride lot because downtown street parking is limited to two hours. On the Coupeville side you can park along the road or at Fort Casey State Park, though WSDOT notes it isn't secured.
How big is the Port Townsend ferry?
In fall 2026 the route runs the M/V Kennewick, a Kwa-di Tabil-class ferry that carries up to 64 vehicles and 748 passengers.
Sources
- WSDOT: Port Townsend terminal (directions, parking, bikes, galley)
- WSDOT: Coupeville terminal (directions, parking)
- WSDOT: Tidal cancellations, Port Townsend / Coupeville (crossing time)
- WSDOT: M/V Kennewick vessel details
- WSDOT: Ferry travel alert bulletins (winter release Nov. 10, SR 536 closure)
- WSDOT: Tickets and reservation routes
Independent guide, not affiliated with Washington State Ferries or WSDOT. Schedules, fares and rules change by season, so confirm on wsdot.wa.gov before you travel. Last updated November 5, 2026.