Indianapolis (IND) to Seattle (SEA)
Flight time
≈ 4h 31m
Bearing
299° NW
Indianapolis (IND) to Seattle (SEA) is 1,861 miles (2,996 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies IND–SEA
Filed traffic dataIn July 2026, Alaska Airlines operated the most departures, one of 4 carriers flying nonstop IND–SEA; the Boeing 737 MAX 9 was the most common aircraft at 40% of departures; flights ran 92% full.
Departures
129
July 2026
Seats
22,400
both directions
Passengers
20,651
both directions
Load factor
92.2%
RPM ÷ ASM
Who flies IND–SEA?
Alaska Airlines operated the most nonstop IND–SEA departures in July 2026 (125), one of 4 carriers on the route.
- AS
125 departures · 21,855 seats
Share of departures96.9%92.7%
Load
- DL
2 departures · 204 seats
Share of departures1.6%48.5%
Load
- UA
1 departures · 166 seats
Share of departures0.8%76.5%
Load
- WN
1 departures · 175 seats
Share of departures0.8%97.7%
Load
What plane flies IND–SEA?
In July 2026, the Boeing 737 MAX 9 flew 40% of IND–SEA departures — more than any other aircraft type.
- Boeing 737 MAX 9
52 departures · 93.1% load
40.3% - Boeing 737-900ER
50 departures · 91.3% load
38.8% - Boeing 737-800
20 departures · 93.5% load
15.5% - Boeing 737 MAX 8
5 departures · 96.9% load
3.9% - Boeing 757-200
1 departures · 63.9% load
0.8% - Airbus A319
1 departures · 40.2% load
0.8%
How has IND–SEA traffic changed?
Nonstop IND–SEA departures rose from 119 in August 2025 to 129 in July 2026.
Monthly nonstop IND–SEA traffic, trailing 12 months through July 2026. Bars scale to the busiest month; months with no filed service show as zero.
August 2025
119 departures · 18,905 passengers
90.0%
Load
September 2025
102 departures · 15,348 passengers
84.9%
Load
October 2025
92 departures · 13,843 passengers
84.5%
Load
November 2025
78 departures · 11,278 passengers
81.8%
Load
December 2025
86 departures · 12,981 passengers
85.2%
Load
January 2026
55 departures · 7,336 passengers
74.9%
Load
February 2026
51 departures · 7,238 passengers
80.1%
Load
March 2026
77 departures · 11,430 passengers
83.7%
Load
April 2026
101 departures · 13,601 passengers
76.4%
Load
May 2026
126 departures · 17,785 passengers
80.2%
Load
June 2026
121 departures · 19,206 passengers
89.8%
Load
July 2026
129 departures · 20,651 passengers
92.2%
Load
By direction
Each direction is filed separately — they rarely match.
SEA → IND
91.4% full
65 departures · 10,391 passengers
IND → SEA
93.0% full
64 departures · 10,260 passengers
Nonstop IND–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
Frequently asked
How far is Indianapolis (IND) from Seattle (SEA)?
IND to SEA is 1,861 miles (2,996 km / 1,617 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from IND to SEA?
A nonstop covers the 1,861-mile great-circle distance in roughly 4h 31m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies IND–SEA?
In July 2026, the Boeing 737 MAX 9 flew the largest share of departures (40.3%), followed by the Boeing 737-900ER (38.8%).
What mileage do I earn flying IND–SEA?
Distance-based programs credit off the 1,861-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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