$238 Cheap Flights from Madison (MSN) to Seattle (SEA)

Madison (MSN) to Seattle (SEA) at a glance

Explore a variety of options for flights from Madison (MSN) to Seattle (SEA) on this domestic short-haul route. Whether you prefer full-service airlines or are looking for cheap Madison to Seattle flights, you can find the itinerary that aligns with your budget and travel schedule. Get ready to discover the iconic sights and vibrant neighborhoods of Seattle as you plan your journey from Dane County Regional Airport to Seattle-Tacoma International Airport.

• Fastest flight duration: around 4h 15m non-stop
• Route distance: roughly 1,600 miles (2,570 km)
• Flights per week: around 15+ flights with multiple daily departures on average
• Typical fares (one-way): economy tickets often range from $125–$430, depending on seasonality and how far ahead you book

Flights from Dane County Regional Airport (MSN) to Seattle - Tacoma International Airport (SEA)

Here are the top airlines favored by travelers flying from Madison to Seattle, based on recent bookings for both non-stop and one-stop flights. Many opt for convenient layovers at O'Hare International Airport (ORD, approximately 1 hour and 15 minutes), Minneapolis - St. Paul International Airport (MSP, about 1 hour and 30 minutes), and Denver International Airport (DEN, around 1 hour and 30 minutes). This allows you to explore various combinations of price, total travel time, and cabin class to secure the ideal itinerary.

• United: This comprehensive carrier provides one-stop service, with one-way fares generally falling between $135 and $440. It handles about 30% of departures for this route, featuring an in-flight duration of 5 hours and 45 minutes, and a total travel time of approximately 7 hours and 15 minutes, including layovers.
• American Airlines: Offering one-stop service, this full-service airline has one-way fares that usually range from $125 to $470. It also accounts for around 30% of the departures on this route, with a flying time of 5 hours and 45 minutes and a total journey time of about 7 hours and 15 minutes, including a layover.
• Delta: This full-service airline provides both non-stop and one-stop options, with one-way fares typically priced between $125 and $500. Delta represents approximately 26% of the departures on this route, featuring a standard in-flight time of 5 hours and 45 minutes and a total travel time of roughly 7 hours and 15 minutes.
• Alaska Airlines: Known for its one-stop service, this full-service carrier offers one-way fares that usually range from $170 to $430. Alaska Airlines makes up about 11% of the departures on this route, with a flight duration of 5 hours and 45 minutes and a total journey time of around 7 hours and 15 minutes, including layovers.
• Frontier Airlines: A budget-friendly carrier providing one-stop service, Frontier's one-way fares typically range from $125 to $215. This airline accounts for roughly 2% of the departures on this route, with an in-flight time of 5 hours and 45 minutes and a total journey time of about 7 hours and 15 minutes, including layovers.

Travelers have the option to enhance their journey from Madison to Seattle by upgrading their flight. American Airlines offers first-class service, while Delta provides both first class and premium economy options. United also features first-class seating for a more luxurious experience.

Best time to fly from Madison (MSN) to Seattle (SEA)

The most popular months for travelers flying from Madison to Seattle are June, July, and August, when peak temperatures in Seattle reach up to 67.5°F in August. If you prefer quieter travel, consider November, the least busy and relatively cheaper time to visit with fewer crowds and temperatures around 44.2°F. For better deals, September usually offers the lowest average one-way fare around $225. Flight availability peaks in August, with approximately 26 flights per week, making it easier to find convenient departure times. February has the fewest flights, with approximately 12 flights per week.

• Cheapest time to fly: September usually offers good deals with average one-way fare around $225, roughly 13% cheaper than the yearly average.
• More budget-friendly months to fly: April, February, and January typically offer average one-way fares of around $237.
• Most flight options: August has the highest number of flights from Madison to Seattle, with approximately 26 flights per week, giving you more flexibility in scheduling your trip.

*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.

Alternative route from Madison (MSN) to Seattle (SEA)

• Appleton to Seattle (ATW-SEA): Located roughly 88 miles from Dane County Regional Airport (MSN), Appleton International Airport (ATW) offers one-way economy fares that typically range from $135 to $445, influenced by seasonal demand and how far in advance you book. The route generally features one-stop flights, with popular layover points including O'Hare International Airport (ORD) and Minneapolis - St. Paul International Airport (MSP). Major airlines operating this route are Delta and United, and first-class service is available as well.

How to find the best prices for flights from Madison (MSN) to Seattle (SEA)

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

1. Best times to book and fly: cheaper fares are usually found when booking 2-8 weeks in advance, which coincides with when most travelers make their reservations. Evening departures (6 PM-12 AM) often offer better prices, although morning flights (5 AM-12 PM) are more popular. Additionally, flying on Sunday typically results in lower costs, while Thursday remains the most favored travel day.
2. Set up price alerts: stay updated on price changes by using Expedia's Price Tracker. Receive alerts when fares drop for your selected route.
3. Bundle and save: bundle your flight and hotel to save on Expedia, or unlock a hotel deal after booking your flight.*
4. 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.
5. Stay flexible with dates: being open to different travel days can sometimes help you find better prices on flights and hotels.
6. 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 allowance before confirming your booking to avoid excess baggage fees at the airport.

*Members only. Savings vary and are not available on all bundles. Select hotels.

Arriving at Seattle - Tacoma International Airport from Dane County Regional Airport

Seattle welcomes travelers from Madison with a range of transport options based on price, convenience, and proximity. Seattle city center is approximately a 20-minute drive (covering about 14 miles) from Seattle - Tacoma International Airport, depending on traffic. Here's how to reach Seattle efficiently:

• Hotel transfer: Transfers offer a convenient way to reach your hotel in Seattle, with private rides that can be arranged in advance.
• Car rental: Renting a car from Seattle - Tacoma International Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at Seattle - Tacoma International Airport on Expedia.
• Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.
• Public transportation: From Seattle - Tacoma International Airport, SeaTac/Airport Station, a metro station, is located about 0.3 miles from the airport, making it easily accessible on foot, while Tukwila Station, a train station, is situated about 4.3 miles away and typically reached by car.

Madison to Seattle Flights

The cheapest times to fly from Madison to Seattle

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Madison to Seattle are during the month of December. You can find some of the cheapest flights from Madison to Seattle with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Madison to Seattle

Sunday is one of the best days to book for cheap flights from Madison to Seattle: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from Madison to Seattle

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Madison to Seattle in 2026. You can also book with separate airlines for your outbound and return journeys, from $238 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Madison to Seattle flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's vacation packages. Bundling together your Madison to Seattle airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

*Terms apply.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.