$19 Cheap Flights to Mill Valley, CA

Flights to Mill Valley at a glance

Traveling to Mill Valley is easy—simply choose between full-service and low-cost airlines. You can compare journey times and find the cheapest flight to Mill Valley that fits your budget and schedule, making it simple to explore the city's renowned sights and vibrant neighborhoods.

• Major airports near Mill Valley: San Francisco International Airport (SFO), Oakland International Airport (OAK)
• Closest (typical) airport to Mill Valley: San Francisco International Airport, SFO (around 22 miles)
• Flights per week: 8,600+ flights arriving across Mill Valley airports
• Number of airlines that fly to Mill Valley: around 85+ carriers

Popular airports near Mill Valley

Mill Valley is a charming city perfect for outdoor enthusiasts and adventure seekers, offering stunning scenery and eco-friendly experiences. Travelers flock to this destination for its beautiful beaches and natural landscapes. The area is conveniently accessible via two major airports nearby, making it easy to plan your visit.

• San Francisco International Airport (SFO): Situated in San Mateo County, California, approximately 22 miles from Mill Valley, this airport offers a wide array of domestic and international flights, connecting travelers to over 240 domestic cities and around 340 global destinations. For added comfort, passengers can opt for first class, business class, or premium economy class seating, depending on the airline and route. Key airlines operating here include United, Alaska Airlines, and Delta.
• Oakland International Airport (OAK): Found in Alameda County, California, roughly 23 miles from Mill Valley, this airport also caters to both domestic and international travelers, with connections to about 100 domestic cities and over 20 international locations. Passengers can choose to upgrade to premium economy, business class, or first class service, contingent on the airline and flight. Notable airlines that serve this airport include Southwest Airlines, Alaska Airlines, and Volaris.

Top routes to Mill Valley

• Los Angeles (LAX) to Mill Valley (SFO/OAK), with one-way airfare from around $45
• New York (JFK/LGA) to Mill Valley (SFO/OAK), with one-way fares starting at around $100
• San Diego (SAN) to Mill Valley (SFO/OAK), with one-way flight options from around $30
• Las Vegas (LAS) to Mill Valley (SFO/OAK), with one-way fares starting at around $40
• Seattle (SEA) to Mill Valley (SFO/OAK), with one-way airfare from around $60

Cheapest routes to Mill Valley

• San Diego (SAN) to Mill Valley (SFO/OAK), with low one-way fares from around $30
• Orange County (SNA) to Mill Valley (SFO/OAK), with low-cost one-way tickets from around $30
• Burbank (BUR) to Mill Valley (SFO/OAK), with affordable one-way prices from around $30
• Ontario (ONT) to Mill Valley (SFO/OAK), with low one-way fares from around $30
• Palm Springs (PSP) to Mill Valley (SFO/OAK), with low one-way fares from around $30

*Flight times and fares vary by season and availability and are based on one-way routes

Top airlines with flights to Mill Valley

• United: Provides service to both San Francisco International Airport (SFO) and Oakland International Airport (OAK), representing around 28% of arrivals in Mill Valley. The typical one-way fare is about $1020, with premium options that may encompass premium economy, business, and first class depending on the specific route.
• American Airlines: Operates flights to San Francisco International Airport (SFO), contributing roughly 13% of arrivals to Mill Valley. Passengers can expect an average one-way fare of around $410. Depending on the route, premium service options may include premium economy, business class, and first class.
• Southwest Airlines: Flies into both San Francisco International Airport (SFO) and Oakland International Airport (OAK), accounting for approximately 13% of arrivals to Mill Valley. The average one-way fare stands at about $240, making it a budget-friendly option for travelers.
• Delta: Serves both San Francisco International Airport (SFO) and Oakland International Airport (OAK), comprising around 12% of arrivals to Mill Valley. The average one-way fare is close to $320, with possible premium cabin offerings that may include premium economy, business, and first class depending on the route.
• Alaska Airlines: Connects to San Francisco International Airport (SFO) and Oakland International Airport (OAK), contributing about 10% of arrivals to Mill Valley. The average fare for a one-way ticket is approximately $250, with business class and first class available as premium service options based on the route.

Best time to fly to Mill Valley

The most popular months for travelers to fly to Mill Valley are January, March, and April, when peak temperatures in Mill Valley can reach up to 54.9°F in April. If you prefer quieter travel, consider September, the least busy and relatively cheaper time to visit with fewer crowds and temperatures around 63.7°F. For better deals, May usually offers the lowest average one-way fare around $240, roughly 11% cheaper than the yearly average. Looking for additional cheaper months to fly? September, October, and February offer average one-way fares roughly ranging from $245 to $260, making them good options for flexible travelers.

*Average one-way fare is based on Expedia flight booking data from January 2025 to April 2026 for the specified route and travel class and may change depending on availability, dates, and demand.

How to save money on a flight to Mill Valley

Getting some of the best deals on flights to Mill Valley is all about timing and flexibility. Here are some key tips to help you save:

1. Compare flight options—use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
2. Set up price alerts—as an Expedia member you can use Price Tracking to receive notifications when flight prices change.
3. Bundle and save—book a flight and unlock a hotel deal on Expedia*, or explore our Mill Valley hotel and flight deals.
4. Think about luggage-nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your baggage allowance before confirming your booking to avoid excess baggage fees at the airport.
5. Earn miles—you can earn airline miles when you book your Mill Valley flight with Expedia. Just select your frequent flyer program and enter your program number when confirming your booking.

*For members. Select hotels.

Arriving in Mill Valley

Mill Valley welcomes travelers through its range of transport options based on price, convenience, and proximity. Here's how to reach Mill Valley efficiently:

• Public transportation: From San Francisco International Airport, San Francisco Intl. Airport Station, a metro station, is located about 0.2 miles away by walking, while San Bruno Station, a train station, is about 2.4 miles from the airport and is most conveniently accessed by car.
• Hotel transfer: Transfers offer a convenient way to reach your hotel in Mill Valley, with private rides that can be arranged in advance.
• Car rental: Renting a car in Mill Valley is a good option if you plan to explore and sightsee beyond the city. Browse cheap car rentals in Mill Valley on Expedia.
• Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.

Where to stay around Mill Valley

• San Francisco: San Francisco is a vibrant metropolis, located 12 miles drive away from Mill Valley. This iconic city attracts travelers seeking a mix of family-friendly activities, outdoor exploration, and urban experiences. Visitors can enjoy shopping at its bustling malls and diverse neighborhoods. Notable landmarks include the historic Golden Gate Bridge, the fun-filled Pier 39, and the expansive Golden Gate Park, perfect for a day of adventure with loved ones or a leisurely stroll amidst nature.
• Larkspur: Larkspur is a charming city, located 2 miles drive away from Mill Valley. It's an ideal destination for outdoor enthusiasts and those looking to soak in breathtaking scenery. The area features various recreational spaces and shopping centers. Key attractions include the stunning Muir Woods National Monument, where you can immerse yourself in the majestic forest, and the Golden Gate Bridge, a must-see cultural landmark. Larkspur's inviting atmosphere makes it a great spot for a relaxing getaway.
• San Quentin: San Quentin is a quaint village, located 6 miles drive away from Mill Valley. This community offers a blend of outdoor activities and family-friendly experiences. Visitors can explore its recreational areas and local shopping options. Notable attractions nearby include the iconic Golden Gate Bridge and the serene Muir Woods National Monument, both suitable for those seeking adventure in nature. San Quentin's proximity to these landmarks makes it an appealing stop for travelers exploring the region.

Tips for short-haul flights to Mill Valley

For quick getaways, efficiency is key. Here is how to make your short-haul journey smoother:

• Pack light and skip checked bags—when flying with budget airlines, traveling with just a carry-on is often more economical. Maximize space by using mini toiletries, wearing your largest clothing items, and planning versatile outfits. This approach also helps you avoid the hassle of waiting at baggage claim once you land.
• Bring your own entertainment—many short-haul flights might not provide in-flight entertainment. To stay occupied, download your favorite TV shows, movies, music, or podcasts ahead of time, and consider bringing a book. Remember to charge your devices fully before you board.
• Arrive at the airport in plenty of time—for short or domestic flights, it’s advisable to arrive at least 1.5 to 2 hours before your departure, taking into account traffic and potential security lines.
• Bring your own snacks and water—pack some snacks and a refillable water bottle to keep hydrated and save money at the airport.

Tips for long-haul flights to Mill Valley

Flying long-haul sometimes requires extra planning to ensure a comfortable journey:

• Select your seat in advance—for longer flights, choosing your seat is crucial for comfort. Full-service airlines may allow you to select your seat for free once online check-in opens, typically 24–48 hours before your flight. Some airlines provide seat selection even earlier than this.
• Arrive at the airport in plenty of time—aim to be at the airport at least 3 hours before departure for international flights to accommodate check-in, security, and immigration procedures.
• Relax at the airport—if you have some extra time, take the opportunity to browse the shops, find a coffee shop, or unwind at the gate or in a departure lounge if you have access. Airport Wi-Fi is generally free and available.
• Adjust to the new time zone mid-flight—begin synchronizing your body clock by changing your watch and adjusting your sleep schedule to align with your destination's time zone. Try to sleep or stay awake on the flight according to the local time at your arrival destination to help minimize jet lag.

Tips to find the cheapest flights to Mill Valley

The cheapest day to fly

Get started finding a cheap flight to Mill Valley 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

December is the cheapest month to fly to Mill Valley. 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 Mill Valley. 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 Mill Valley, 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 Mill Valley

The lowest price for round-trip flights to Mill Valley in 2026 starts from $38, while one-way tickets start from from $19. 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 Mill Valley. If you have a preferred departure time or airline, you can use the handy filters to customize your search.

The cheapest airlines flying to Mill Valley

Frontier Airlines, Southwest Airlines, Alaska Airlines, United, American Airlines are just some of the airlines that can typically offer cheap tickets to Mill Valley. 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 Mill Valley and countless more destinations worldwide.

The most affordable airports to fly into

To view the cheapest airports to fly into for Mill Valley, 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 Mill Valley. 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 Mill Valley 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 Mill Valley

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 Mill Valley.

Stopover savings

The cheapest tickets to Mill Valley are sometimes those with a stopover. Book one of these flights, and you'll change planes at an airport en route to Mill Valley. 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 Mill Valley 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 Mill Valley. Simply download the free Expedia app to your smart device and activate Mill Valley 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 Mill Valley. 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.