$137 Cheap Sun Country Airlines flights Nashville (BNA) to Seattle (SEA)

Scoring cheap one-way Sun Country Airlines flights from BNA to SEA from $137 on Expedia is simple — just filter by “Price (lowest to highest).” Or check out our affordable round-trip fares from $312 for your next getaway.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

Look for round-trip or one-way flights to Seattle in January or February. You could find cheaper fares with Sun Country Airlines during these off-peak months.

Begin your search one to three months before your departure to get cheap fares on Sun Country Airlines flights from Nashville Intl. Airport (BNA) to Seattle - Tacoma Intl. Airport (SEA). You can save 25% by booking your domestic flight 34 to 86 days in advance versus last-minute reservations made 6 to 12 days out. You could also reduce costs by buying your fare on a Sunday, as it’s 6% cheaper on average than a Monday, the most expensive day to book.* Nail your timing, and you can enjoy significant savings on domestic trips.*Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC’s global airline sales database.

Simply enter your dates, hit search and tick the “Nonstop” filter on Expedia to browse any direct flights from BNA to SEA with Sun Country Airlines or other airlines.

Filter your results by “Early Morning” and “Morning” to see the earliest flights from BNA to SEA. Leaving early means you’re less likely to experience cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.

Sun Country Airlines flights from Nashville Intl. Airport (BNA) to Seattle come in to land at Seattle - Tacoma Intl. Airport (SEA). This is the main entry point here.

A standard economy flight with Sun Country Airlines from BNA to SEA allows 1 cabin bag and a small personal item. Your carry-on luggage allowance is 1 cabin bag up to 33 lb with maximum dimensions of 23 inches x 10 inches x 15 inches. Weight and size restrictions can vary according to the fare type and cabin class. To avoid unexpected fees at the terminal, double-check your Sun Country Airlines booking or visit the airline’s website before you pack.

Sun Country Airlines makes traveling from BNA to SEA enjoyable with top-tier customer service and a rewarding loyalty program. You also have the chance to earn points with Sun Country Rewards. Remember to join our free One Key™ rewards program to earn OneKeyCash™*, which can be redeemed on future trips.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Changes are often free within 24 hours of making a booking, but your airline may add a charge after that. For more information about modifying your reservation, check out your “Trips,” select your flight and click on “Manage Booking.” If you’d like the flexibility to change your plans without additional costs, apply the “Changes included” or “No cancel fee” filter when organizing your next escape.