Atlanta (ATL) to Seattle (SEA)
Flight time
≈ 5h 09m
Bearing
307° NW
Atlanta (ATL) to Seattle (SEA) is 2,178 miles (3,505 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies ATL–SEA
Filed traffic dataIn May 2026, Delta Air Lines operated the most departures, one of 2 carriers flying nonstop ATL–SEA; the Boeing 737-900ER was the most common aircraft at 48% of departures; flights ran 88% full.
Departures
599
May 2026
Seats
115,341
both directions
Passengers
101,464
both directions
Load factor
88.0%
RPM ÷ ASM
Who flies ATL–SEA?
Delta Air Lines operated the most nonstop ATL–SEA departures in May 2026 (439), one of 2 carriers on the route.
- DL
439 departures · 87,099 seats
Share of departures73.3%88.6%
Load
- AS
160 departures · 28,242 seats
Share of departures26.7%86.1%
Load
What plane flies ATL–SEA?
In May 2026, the Boeing 737-900ER flew 48% of ATL–SEA departures — more than any other aircraft type.
- Boeing 737-900ER
290 departures · 87.8% load
48.4% - Boeing 757-200
98 departures · 93.0% load
16.4% - Boeing 757-300
97 departures · 90.4% load
16.2% - Boeing 737 MAX 9
71 departures · 85.7% load
11.8% - Airbus A321neo
17 departures · 93.2% load
2.8% - Boeing 737-800
15 departures · 90.3% load
2.5% - Boeing 767-400ER
5 departures · 41.9% load
0.8% - Airbus A330-300
2 departures · 20.6% load
0.3% - Airbus A350-900
2 departures · 89.1% load
0.3% - Boeing 767-300
1 departures · 0.0% load
0.2% - Airbus A330-900
1 departures · 0.0% load
0.2%
How has ATL–SEA traffic changed?
Nonstop ATL–SEA departures fell from 645 in June 2025 to 599 in May 2026.
Monthly nonstop ATL–SEA traffic, trailing 12 months through May 2026. Bars scale to the busiest month; months with no filed service show as zero.
June 2025
645 departures · 113,084 passengers
91.8%
Load
July 2025
690 departures · 122,736 passengers
91.8%
Load
August 2025
628 departures · 112,892 passengers
90.5%
Load
September 2025
571 departures · 98,064 passengers
87.5%
Load
October 2025
582 departures · 91,687 passengers
84.3%
Load
November 2025
512 departures · 77,687 passengers
81.7%
Load
December 2025
535 departures · 87,201 passengers
88.7%
Load
January 2026
430 departures · 67,958 passengers
85.4%
Load
February 2026
392 departures · 63,032 passengers
86.3%
Load
March 2026
453 departures · 73,121 passengers
87.7%
Load
April 2026
507 departures · 79,755 passengers
86.0%
Load
May 2026
599 departures · 101,464 passengers
88.0%
Load
By direction
Each direction is filed separately — they rarely match.
SEA → ATL
83.7% full
302 departures · 48,764 passengers
ATL → SEA
92.3% full
297 departures · 52,700 passengers
Nonstop ATL–SEA traffic has been filed since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through May 2026; filings from 2025. Public domain (US Government work).
The airports
Atlanta
US
Hartsfield Jackson Atlanta International Airport
Coordinates
33.64°N, 84.43°W
Hemisphere
N · W
Frequently asked
How far is Atlanta (ATL) from Seattle (SEA)?
ATL to SEA is 2,178 miles (3,505 km / 1,893 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from ATL to SEA?
A nonstop covers the 2,178-mile great-circle distance in roughly 5h 09m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies ATL–SEA?
In May 2026, the Boeing 737-900ER flew the largest share of departures (48.4%), followed by the Boeing 757-200 (16.4%).
What mileage do I earn flying ATL–SEA?
Distance-based programs credit off the 2,178-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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