$313 Cheap Flights from Chattanooga (CHA) to Seattle (SEA)

Chattanooga (CHA) to Seattle (SEA) at a glance

Explore a range of options for Chattanooga to Seattle flights on this long-haul domestic route. Whether you're seeking cheap flights from Chattanooga or the best chattanooga to seattle airfare, you'll find various airlines ready to cater to your travel needs. Compare itineraries to discover the most suitable fit for your budget and schedule as you plan your visit to Seattle's iconic sights and vibrant neighborhoods. Check out the essential details for flights from Chattanooga Metropolitan Airport (CHA) to Seattle-Tacoma International Airport (SEA).

• Fastest flight duration: around 6h 45m in-flight, plus roughly 1h 15m layover with one stop
• Route distance: roughly 2,100 miles (3,380 km)
• Flights per week: around 11 departures on average
• Typical fares (one-way): economy tickets often range from $100–$465, depending on seasonality and how far ahead you book

Flights from Chattanooga Metropolitan Airport (CHA) to Seattle - Tacoma International Airport (SEA)

Recent traveler bookings reveal the top airlines favored for flights from Chattanooga to Seattle, particularly for one-stop and multi-stop journeys. Many travelers opt for layovers at O'Hare International Airport (ORD), Dallas-Fort Worth International Airport (DFW), and Hartsfield-Jackson Atlanta International Airport (ATL), each with approximately 1 hour and 15 minutes of layover time. This allows you the flexibility to choose between price, total travel duration, and cabin class to craft the ideal itinerary for your trip.

• American Airlines: This comprehensive airline provides both one-stop and multi-stop options, with one-way ticket prices typically between $125 and $510. It represents around 48% of the flights on this route, featuring an in-air duration of approximately 6 hours and 45 minutes, leading to a total travel time of about 8 hours and 15 minutes.
• Delta: Delta is another full-service airline that offers one-stop flights, with fares generally ranging from $100 to $490 for a one-way ticket. This carrier accounts for about 28% of departures on this route, with a flying time of 6 hours and 45 minutes, resulting in a complete travel duration of roughly 8 hours and 15 minutes, including layover times.
• United: Providing one-stop service, United Airlines has one-way prices that typically fall between $140 and $555. It makes up around 24% of the departures on this route, with an in-flight duration of 6 hours and 45 minutes and an overall travel time of approximately 8 hours and 15 minutes when factoring in layovers.

Travelers flying from Chattanooga to Seattle have the option to upgrade their flight. Delta provides both first class and premium economy cabins, while United and American Airlines also offer first class service for a more comfortable journey.

Best time to fly from Chattanooga (CHA) to Seattle (SEA)

The most popular months for travelers flying from Chattanooga to Seattle are April, June, and September, when peak temperatures in Seattle reach up to 61.3°F in September. 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 $238. Flight availability peaks in May, with approximately 13 flights per week, making it easier to find convenient departure times. January has the fewest flights, with approximately 8 flights per week.

• Cheapest time to fly: September usually offers good deals with average one-way fare around $238, roughly 15% cheaper than the yearly average.
• More budget-friendly months to fly: November and April typically offer average one-way fares of around $255.
• Most flight options: May has the highest number of flights from Chattanooga to Seattle, with approximately 13 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 Chattanooga (CHA) to Seattle (SEA)

• Knoxville to Seattle (TYS-SEA): McGhee Tyson Airport (TYS) is located approximately 86 miles from Chattanooga Metropolitan Airport (CHA). On this route, one-way economy tickets generally fall between $155 and $510, influenced by the time of year and how early you book. Most flights on this route involve at least one stop, with common layover points being O'Hare International Airport (ORD) and Dallas-Fort Worth International Airport (DFW). The leading airlines operating on this route include American Airlines and United, and first-class service is also offered.

How to find the best prices for flights from Chattanooga (CHA) to Seattle (SEA)

Getting some of the best deals on flights from Chattanooga 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 available when booking at least two months in advance, although most travelers tend to book 2-8 weeks ahead. Departures between 12 PM and 6 PM often yield lower prices and are the most popular flight times. Additionally, flying on Wednesday can lead to cheaper prices, even though Tuesday remains the most popular 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 Chattanooga Metropolitan Airport

Seattle welcomes travelers from Chattanooga 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 and is easily reachable on foot, while Tukwila Station, a train station, is situated about 4.3 miles away and typically accessed by car.

Chattanooga to Seattle Flights

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

The best time to book a flight from Chattanooga to Seattle

Sunday is one of the best days to book for cheap flights from Chattanooga 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 Chattanooga 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 Chattanooga to Seattle in 2026. You can also book with separate airlines for your outbound and return journeys, from $313 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 Chattanooga 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 Chattanooga 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.