Compare fares on the long-haul transcontinental flight from Atlanta to Seattle — a northwestbound route of about 2,178 miles, typically flown nonstop in around 4h 50m.
Fares from $150 one-way, economy · as of Jul 7, 2026
Distance
2,178 mi
3,505 km
Est. flight time
4h 50m
nonstop
Nonstop service
Available
5 carriers
Time difference
3 hours behind
Seattle
Flights from Hartsfield Jackson Atlanta International Airport (ATL) to Seattle Tacoma International Airport (SEA) cover roughly 2,178 miles (3,505 km) on a northwestbound heading, a nonstop flight of about 4h 50m. The route crosses 3 time zones — Seattle is 3 hours behind Atlanta. It's served by 5 airlines.
Lets Fly Travel compares live fares across hundreds of airlines to find the best deal on this route — and every booking is reviewed by a real travel agent before ticketing.
Airlines with recent nonstop fares on the ATL–SEA route (as of Jul 7, 2026):
Airline availability and fares change over time — search your dates for current options.
Fare patterns and travel conditions vary by season. Here's what to expect on the ATL–SEA route throughout the year.
Jan–Feb
Post-holiday lull means some of the lowest fares of the year on the Atlanta–Seattle route. Great for a spontaneous escape.
Mar–May
Spring break drives demand on transcontinental routes like ATL–SEA. Book at least 4–6 weeks ahead for the best prices.
Jun–Aug
Summer is the busiest season for Atlanta to Seattle travel. Mid-week flights (Tue/Wed) typically undercut weekend fares by 15–25%.
Sep–Oct
Fares often drop after Labor Day. September and October are among the cheapest months to fly this long-haul transcontinental flight.
Nov–Dec
Thanksgiving week and the Christmas/New Year period see significant fare increases. Flexibility on exact dates can save considerably.
Seattle is served by Seattle Tacoma International Airport (IATA: SEA , ICAO: KSEA). Allow time for baggage claim and ground transportation after landing.
IATA Code
SEA
Flight Time
~4h 50m
Distance
2,178 mi
tips_and_updates Arrival tips
Live fares across hundreds of airlines.