Cheap Flights from Miami (MIA) to Seattle (BFI)

Popular airlines from Miami Intl. Airport (MIA) to Seattle, WA (BFI-Boeing Field)

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Find available prices by choosing your travel dates.
Flights from Miami (MIA) to Seattle (BFI)
Origin airport
Miami Intl.
Destination airport
Boeing Field
Distance
2723 mi

Miami to Seattle Flights

The cheapest times to fly from Miami 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 Miami to Seattle are during the month of . You can find some of the cheapest flights from Miami to Seattle with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Miami to Seattle

Sunday is one of the best days to book for cheap flights from Miami 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 Miami 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 Miami to Seattle in 2025. You can also book with separate airlines for your outbound and return journeys, from 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 Miami 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 Miami 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.

Frequently asked questions

Is it cheaper to buy a plane ticket from Miami Intl. Airport (MIA) to King County International Airport last minute?
When it comes to booking your flights, it’s better to be prepared. While it’s possible to score a last-minute deal on a MIA to Boeing Field flight, prices usually don’t get cheaper as the date of departure nears. Based on flight pricing and demand studies in 2022, we have found that the sweet spot to book a domestic flight is between 28 – 35 days in advance. For international trips it’s between three and four months.
What airports do you fly into for Seattle from Miami?
With Boeing Field Airport (BFI), Seattle - Tacoma Intl. Airport (SEA) and Renton Municipal Airport (RNT) to pick from, traveling from Miami to Seattle is a breeze. The city’s main gateway, Boeing Field Airport (BFI), is approximately 5 mi south of the center. As well as the price of fares, consider factors like public transportation options from the airport and the distance to your hotel when choosing where to fly into. Get your Seattle adventure off to a superb start by visiting Space Needle and Pike Place Market.
Can I change the date of my flight from Miami Intl. Airport (MIA) to King County International Airport?
It’s a snap to make changes to your Miami Intl. Airport (MIA) to King County International Airport trip yourself. Access your details via the Expedia Trips portal and choose “change flight.” Look around for new flights and book the one that fits your new plans. You’ll see an estimate of applicable flight change costs. Alternatively, use our Customer Service portal to connect with our Virtual Agent and get answers to your questions.

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