The American West Coast stretches 1,650 miles (2,655 km) from the Mexican border at San Diego to the Canadian border near Blaine, Washington — a corridor that moves through four distinct metropolitan cultures, the Pacific Coast Highway, the Columbia River Gorge, the redwood forests of Northern California, and the volcanic landscapes of the Cascades. A multi-city West Coast itinerary combining Los Angeles, San Francisco, Portland, and Seattle offers the most geographically and culturally varied land journey available in the contiguous United States. This guide builds the 12-day circuit that works — connecting the cities logically, covering the ground between them honestly, and integrating the natural landscapes that make the Pacific corridor unique.




 

Route Overview

Overall circuit: The most efficient routing is Los Angeles → San Francisco by drive (Pacific Coast Highway), San Francisco → Portland by flight (1.5 hours), Portland → Seattle by drive or train, and Seattle to Los Angeles by return flight. Flying both the SF→Portland and Seattle→LA legs eliminates the two longest drives and preserves itinerary time for the cities themselves.

Best Time to Visit

Summer (June  August) — Most Popular

• The Pacific Northwest (Portland, Seattle) is at its warmest and driest: 70 80°F (21 27°C) with reliably clear skies
• Northern California coast (Big Sur, San Francisco) remains foggy in June and clears progressively through July and August
• Los Angeles: warm and clear inland; coastal marine layer in June
• Book accommodation on the PCH (Big Sur) and in Seattle 6 10 weeks in advance

Fall (September  October) — Best for the Full Circuit

• Northern California fog dissipates; the PCH is clearest; Big Sur is fully accessible
• Pacific Northwest temperatures remain warm (65 75°F / 18 24°C) through September before the rains return in October
• Crowds ease after Labor Day at all destinations; prices moderate

Spring (March  May)

• Oregon and Washington are lush and green after winter rains; waterfalls in the Columbia River Gorge are at maximum flow
• California wildflower bloom along the PCH in March and April
• Some Big Sur road sections may be closed by mudslides — check Caltrans (dot.ca.gov) before departure

Winter (November  February)

• Portland and Seattle enter their rainy season — overcast, cool (40 50°F / 4 10°C), frequently wet
• Los Angeles and San Diego are at their most temperate and least crowded
• Big Sur is atmospheric and largely empty; Pacific winter storms can close the PCH at points — always check road conditions

The Four Cities

City 1 — Los Angeles (3 Days)

Los Angeles anchors the southern end of the West Coast circuit. The essential experiences for the multi-city traveler — combining both the city and its position as the gateway to the PCH drive north — are covered fully in the LA 3-Day Itinerary guide in this series. The recommended 3-day allocation covers:

• Day 1: Hollywood, Griffith Observatory, Silver Lake
• Day 2: The Getty Center, Santa Monica and Venice Beach, Abbot Kinney Boulevard
• Day 3: LACMA, Grand Central Market downtown, Pasadena

Key for the Pacific Coast Highway departure: On departure day (beginning of the drive north), leave Los Angeles by 7:00 AM to clear the Santa Monica Freeway before rush hour. Enter the PCH (CA-1) northbound at the Santa Monica Pier.

The Drive — Pacific Coast Highway: Los Angeles to San Francisco (2 Days)

The most celebrated coastal drive in the United States — this guide treats it as a 2-day itinerary rather than a through-drive, with an overnight in Big Sur.

Day 4 · Malibu to San Simeon

• Morning (7:00 AM): Depart Santa Monica northbound on the PCH. Drive through Malibu — the 27-mile (43-km) stretch of Pacific Coast Highway between Santa Monica and Point Mugu is the first sustained stretch of open ocean driving. Stop at Point Dume State Beach (Mile 34) for a short clifftop walk and whale-watching vantage (December March for gray whales; April October for blue and humpbacks).
• Mid-morning: Continue north through Oxnard and Ventura — less scenically compelling than the Malibu stretch; the Central Coast's agricultural valley meets the coast here.
• Midday: Arrive Morro Bay (approximately 200 miles / 322 km from Santa Monica; 3.5 hours). Lunch at the harbor — fresh dungeness crab and Pacific oysters from the harbor seafood operations. Walk the Morro Bay State Park estuary boardwalk (free; one of California's finest shorebird habitats).
• Afternoon: Drive north to Hearst Castle (CA-1 near San Simeon) — William Randolph Hearst's 165-room hilltop estate, now a California State Historic Monument. Guided tours of the Grand Rooms take 1.5 hours; book in advance at hearstcastle.org. Arrive before 3:00 PM for the last full tour of the afternoon.
• Evening: Continue north 6 miles (10 km) to San Simeon or Cambria for overnight. Dinner in Cambria on Main Street.

Route logic: Santa Monica (south) → Malibu → Morro Bay → San Simeon (north). Entirely northbound on CA-1; no deviations required.

Day 5 · Big Sur to San Francisco

• Morning (7:30 AM): Depart Cambria northbound. The Big Sur coast begins at approximately Ragged Point — the first significant cliff-and-ocean scenery of the drive.
• Key Big Sur stops (northbound order):
  • Elephant Seal rookery at Piedras Blancas (9 miles / 14 km north of Cambria) — a beachside colony of northern elephant seals viewable from a boardwalk above the beach; free; hundreds to thousands of seals depending on season
  • Bixby Creek Bridge (the most photographed bridge on the PCH; park in the designated pullout on the north side of the bridge)
  • McWay Falls at Julia Pfeiffer Burns State Park (an 80-foot / 24 m waterfall that falls directly onto the beach; 10-minute walk from the parking area; small state park day use fee)
  • Pfeiffer Beach (turn left on Sycamore Canyon Road; narrow road; the purple-tinged sand and sea stack arch are distinctive and worth the 1-mile / 1.6 km detour)
• Midday: Continue north through Carmel-by-the-Sea (a compact, walkable village with strong art galleries and the Carmel Mission) and into Monterey. The Monterey Bay Aquarium (886 Cannery Row) — one of the finest aquariums in the world, with a live kelp forest tank and sea otter exhibit — merits 2.5 3 hours. Book in advance at montereybayaquarium.org.
• Afternoon: Continue north on US-101 or CA-1 through Santa Cruz (the Natural Bridges State Beach monarch butterfly overwintering site is worth a 30-minute stop November February) to San Francisco.
• Evening: Arrive San Francisco by 5:00 6:00 PM. Check in to accommodation.

Route logic: Cambria → Big Sur (northbound, continuous CA-1) → Monterey → Santa Cruz → San Francisco. Entirely northbound — the geographic logic of CA-1.

City 2 — San Francisco (2 Days)

The San Francisco 2-Day City Tour guide in this series covers the full detail. For the multi-city traveler arriving from the PCH, the recommended allocation:

• Day 6: Alcatraz (morning ferry), Fisherman's Wharf and the Ferry Building, Chinatown and North Beach
• Day 7: Lombard Street, Golden Gate Park (de Young Museum or Cal Academy of Sciences), Golden Gate Bridge walk, Baker Beach at golden hour, Mission District dinner

Departure to Portland: Fly from SFO to PDX (Portland International) — approximately 1.5 hours. Southwest, Alaska, and United operate frequent service. Book at least 2 weeks in advance; fares typically run $89 $160 one-way.

City 3 — Portland, Oregon (2 Days)

Day 8 · Arrive Portland: Neighborhoods and Food Culture

Portland, Oregon, is the most neighborhood-oriented of the four West Coast cities — a compact city of 150 square miles (388 km�) that has built a food, coffee, craft beer, and independent bookstore culture per capita that exceeds any comparable American city.

• Morning: Arrive PDX. Take the MAX Red Line light rail from the airport to downtown (40 minutes; $2.50). Check in at accommodation.
• Midday: The Pearl District — Portland's arts and gallery neighborhood north of downtown, anchored by Powell's City of Books (1005 W Burnside St), the largest independent bookstore in the United States (multiple floors; 3,500 sections; used and new books under one roof; allow 1 hour).
• Afternoon: Walk south through the South Park Blocks to the Portland Art Museum (1219 SW Park Ave; $25 adult; the Native American art collection and the Northwest Coast indigenous art galleries are the institution's strongest holdings). Walk to Tom McCall Waterfront Park along the Willamette River.
• Evening: Dinner in the Division Street corridor (SE Division Street between 20th and 60th Avenues) — the highest concentration of nationally recognized restaurants in the city, including Pok Pok (3226 SE Division; Andy Ricker's Thai-American restaurant), Ava Gene's, and Luce. Take the MAX or a rideshare back downtown.

Day 9 · Columbia River Gorge Day Trip

The Columbia River Gorge National Scenic Area — 80 miles (129 km) east of Portland along the Columbia River, where the river has cut through the Cascade Range — is the most dramatic natural landscape within reach of any major American city. The Historic Columbia River Highway (US-30) runs through the gorge's Oregon side, passing Crown Point Vista House (a 1918 octagonal observatory perched on a basalt cliff 700 feet / 213 m above the river), Latourell Falls, Bridal Veil Falls, and Multnomah Falls — at 620 feet (189 m) of combined upper and lower drops, the second-highest year-round waterfall in the United States.

• Morning (7:30 AM): Drive east from Portland on I-84 (40 minutes to the gorge area). Transfer to US-30 at Troutdale for the historic highway. Stop at Crown Point (panoramic Columbia River view; free) and Latourell Falls (2.5-mile / 4-km round trip hike to the upper falls viewpoint).
• Midday: Continue to Multnomah Falls — the single most visited natural attraction in Oregon. A timed-entry permit is required from May through October (reserve in advance at recreation.gov; $2 per vehicle); outside of permit season, arrive before 9:00 AM. The paved trail to the bridge between the upper and lower falls is 0.4 miles (0.6 km); the full trail to the top is 2.4 miles (3.9 km) round trip with a 600-foot (183 m) elevation gain.
• Afternoon: Continue east on I-84 to Hood River (60 miles / 97 km from Portland) — the windsurfing and kiteboarding capital of North America, with strong fruit orchards and excellent craft cideries. The Hood River County Fruit Loop (a 35-mile / 56 km self-guided scenic drive) passes through orchards, lavender farms, and farm stands.
• Evening: Return to Portland on I-84 (1 hour). Dinner downtown.

Route logic: Portland (west) → Columbia River Gorge (east on I-84) → Multnomah Falls → Hood River (east) → return west to Portland. Full out-and-back along the gorge corridor.

Day 10 · Drive Portland to Seattle

The 175-mile (282 km) drive from Portland to Seattle on I-5 takes approximately 3 hours in light traffic — but the border between the two states crosses Mount St. Helens country, making a detour worth the additional 1.5 hours.

Optional detour: Mount St. Helens

• Exit I-5 at Castle Rock (exit 49) and drive 50 miles (80 km) east on SR-504 to the Johnston Ridge Observatory — the closest accessible viewpoint to the 1980 volcanic crater. The observatory (open May October; $8 adult; nps.gov/mora) sits 5 miles (8 km) from the crater rim and provides the definitive perspective on the volcanic devastation of the 1980 eruption, including views of the lava dome still building within the crater.
• Return to I-5 and continue north to Seattle.

Without the detour: Drive I-5 north through Olympia, the state capital, arriving in Seattle by early afternoon. The Tacoma Narrows bridge crossing provides the first view of the Puget Sound.

City 4 — Seattle (2 Days)

(See Seattle 48-Hour guide in this series for full detail.)

Day 11: Pike Place Market (morning), Space Needle and Seattle Center, Capitol Hill or Pioneer Square evening.

Day 12: Olympic Sculpture Park, Seattle Art Museum, Chihuly Garden and Glass, departure from SEA-TAC.

Return flight: Seattle (SEA) → Los Angeles (LAX or BUR): Alaska Airlines, Southwest, United, and Delta all operate frequent service; approximately 2.5 hours. Book at least 2 weeks in advance.

Accommodations — Four Cities

Los Angeles

(See LA guide for full detail)

• Budget: Samesun Hollywood ($); Freehand LA ($)
• Mid-range: Mama Shelter West Hollywood ($$$)
• Luxury: Chateau Marmont ($$$$)

Pacific Coast Highway (Overnight)

San Francisco

(See SF guide for full detail)

• Budget: HI SF City Center ($)
• Mid-range: Hotel Emblem ($$$)
• Luxury: The St. Francis ($$$$)

Portland

Seattle

(See Seattle guide for full detail)

• Budget: HI Seattle ($)
• Mid-range: Hotel Theodore ($$$)
• Luxury: Four Seasons Seattle ($$$$)

Packing Essentials for the Full Circuit

• One versatile bag — checked on two flights (SFO→PDX, SEA→LAX); carried in the vehicle for the PCH drive; compact rolling luggage or a 40-liter travel backpack works best for this format
• Layers for all climates — Los Angeles can be warm; Big Sur's cliffs are windy; San Francisco is nearly always cooler than expected; Portland and Seattle are mild but rain-likely outside of July September
• Waterproof shell jacket — essential for Portland and Seattle; useful along the Big Sur coast
• Reef-safe sunscreen — required in California state park coastal waters
• Offline maps for the PCH — cell service on CA-1 through Big Sur is absent for several 20-mile (32-km) stretches; download the route offline before departing Cambria
• Big Sur road status check — verify Caltrans (dot.ca.gov) before driving; this section of CA-1 is periodically closed by mudslide, particularly in winter and spring
• Camera with wide-angle lens — the PCH and the Columbia River Gorge are landscape-photography destinations; a wide-angle (16 35mm equivalent) is the most useful focal range

Safety Guidelines

1. Pacific Coast Highway driving conditions. The Big Sur section of CA-1 is narrow, two-lane, and has sections where guard rails are minimal or absent. Drive at or below the 35 45 mph (56 72 km/h) speed limit; pull into designated turnouts to allow faster vehicles to pass; never stop in the driving lane for photographs. The road is entirely closed to driving when rockslides occur — check Caltrans before departure.

2. Columbia River Gorge hiking. The Multnomah Falls corridor and the upper gorge trails are subject to seasonal trail closures and permit requirements. Trails above Multnomah Falls can be slippery in wet conditions — wear appropriate footwear. Eagle Creek Trail is subject to periodic closure for fire recovery; check nps.gov/crgo for current conditions.

3. California marine layer and visibility. Driving the PCH in dense coastal fog significantly reduces visibility and increases accident risk. If fog is thick at departure, delay until it begins to clear (typically by 10:00 11:00 AM). The Bixby Creek Bridge pullout area is a particular hazard point where stopping vehicles and passing traffic converge.

4. Pacific Northwest rain and driving. Portland and Seattle's rainy season (October May) creates slippery road conditions, reduced visibility, and faster highway speeds than conditions warrant. Increase following distance; reduce speed; be aware of standing water on highway shoulders.

5. Mount St. Helens restricted zones. The area within 2 miles (3.2 km) of the crater rim remains restricted without a climbing permit from the Mount St. Helens National Volcanic Monument (available for the summit route only, May October). The Johnston Ridge Observatory is within the permitted public access zone.

Practical Information

Photography Golden Hours

• Bixby Creek Bridge (Big Sur, PCH): Dawn from the north-side turnout looking south — the bridge in the first light with Big Sur's south-facing coast beyond; the fog below the ridgeline frames the bridge from above in summer mornings
• Multnomah Falls (Columbia River Gorge): Overcast days provide even, shadowless light on the waterfall plunge — direct sun creates deep shadow from the surrounding basalt walls
• Portland's East Bank Esplanade at dusk: Looking west across the Willamette River at the Hawthorne Bridge silhouetted against the sunset and the West Hills behind the city
• Seattle from Kerry Park (Queen Anne Hill): The Space Needle in the foreground with the skyline and Mount Rainier behind — best in morning light when Rainier's snow cap is clear; the summit is cloud-covered approximately 60% of days year-round