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 July 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 35% of departures; flights ran 93% full.
Departures
690
July 2026
Seats
132,235
both directions
Passengers
122,774
both directions
Load factor
92.8%
RPM ÷ ASM
Who flies ATL–SEA?
Delta Air Lines operated the most nonstop ATL–SEA departures in July 2026 (523), one of 2 carriers on the route.
- DL
523 departures · 103,172 seats
Share of departures75.8%93.4%
Load
- AS
167 departures · 29,063 seats
Share of departures24.2%90.8%
Load
What plane flies ATL–SEA?
In July 2026, the Boeing 737-900ER flew 35% of ATL–SEA departures — more than any other aircraft type.
- Boeing 737-900ER
242 departures · 92.8% load
35.1% - Boeing 757-300
164 departures · 92.0% load
23.8% - Airbus A321neo
154 departures · 95.6% load
22.3% - Boeing 737 MAX 9
68 departures · 91.3% load
9.9% - Boeing 737-800
34 departures · 91.5% load
4.9% - Boeing 757-200
11 departures · 94.7% load
1.6% - Boeing 737 MAX 8
6 departures · 95.2% load
0.9% - Boeing 767-300
4 departures · 95.8% load
0.6% - Boeing 767-400ER
4 departures · 85.5% load
0.6% - Airbus A330-300
1 departures · 55.0% load
0.1% - Airbus A330-900
1 departures · 73.0% load
0.1% - Airbus A350-900
1 departures · 93.5% load
0.1%
How has ATL–SEA traffic changed?
Nonstop ATL–SEA departures rose from 628 in August 2025 to 690 in July 2026.
Monthly nonstop ATL–SEA traffic, trailing 12 months through July 2026. Bars scale to the busiest month; months with no filed service show as zero.
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
June 2026
652 departures · 115,361 passengers
91.8%
Load
July 2026
690 departures · 122,774 passengers
92.8%
Load
By direction
Each direction is filed separately — they rarely match.
ATL → SEA
93.0% full
347 departures · 62,010 passengers
SEA → ATL
92.7% full
343 departures · 60,764 passengers
Nonstop ATL–SEA traffic has been filed since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through July 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 July 2026, the Boeing 737-900ER flew the largest share of departures (35.1%), followed by the Boeing 757-300 (23.8%).
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.
Trip reports on YouTube
Fliers post trip reports from this route to YouTube. These three were matched automatically from public YouTube listings — The Frequent Flier does not host, review, or endorse them.
Genki's Travels
Alaska Airlines | B737-900ER | First Class | Atlanta (ATL) to Seattle (SEA) | Trip Report
27:42 · Mar 2025
Coke Cans And Winglets
TRIP REPORT | Atlanta (ATL) to Seattle (SEA) | Delta Air Lines | B737-932ER | Comfort+
12:15 · Jun 2020
The Trip Reporter
TRIP REPORT | Alaska Airlines (Premium Class) | Seattle - Atlanta | Boeing 737-900ER
16:28 · Jul 2021
Source: YouTube. Titles, thumbnails, and channel names come from YouTube. Playing a video loads the YouTube player, and using it means you agree to the YouTube Terms of Service; the Google Privacy Policy applies.
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