Indianapolis to Seattle flight

Flights from Indianapolis to Seattle start at €311.07 and take 7h 52m at their fastest.

IndianapolisIndianapolisSeattleSeattle

The Flights from Indianapolis to Seattle starts at €311.07 and takes 7h 52m door to door, run by 1 operator over 3,096 km, with around 5 departures a day. Fares bottom out about 60 days before departure.

Checked September 10, 2026Priced for September 29, 2026One passenger, all fees included

  • 7h 52mDoor to door
  • 4h 42mMoving
  • €311.07From
  • 458.2 kgCO2
Real services

The cheapest and the fastest on September 29, 2026

Two journeys we can sell today, with the service number each operator files them under.

Cheapest€275.67
  1. American Airlines AA588507:3046m08:16Indianapolis INDChicago MDW
  2. American Airlines AA498609:254h 19m13:44Chicago ORDSeattle BFI

Changes at Chicago, with 69 minutes between services and a walk of about 5 minutes.

Door to door 9h 24mCO2 773.2 kgChanges 1Fixed, no changes

Fastest€306.35
  1. Alaska Airlines AA432306:404h 42m11:22Indianapolis INDSeattle SEA

Door to door 7h 52mCO2 458.2 kgChanges 0Fixed, no changes

Carriers

Airlines

Speed, flexibility and what is on board. Nothing here is a rating, because we have not earned one.

Every operator we sell on this corridor. Speed is the carrier's own typical cruising speed, not the average over this route.
OperatorFromFastestTypical speedFlexibilityOn board
Alaska Airlines€306.357h 33m740 km/hFixed fareNot published
  • Alaska Airlines

That is the traveling done. What happens after you walk out into Seattle is not something we sell.

A hotel room

Looking for somewhere to stay in Seattle?

Sort by distance from Seattle King Street and you can see which places are ten minutes on foot and which are not.

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Booking window

When to book Indianapolis to Seattle

The same search run across the whole booking window, so the shape of the curve is visible rather than described.

  1. €295.1490 days
  2. €232.6060 days
  3. €272.7245 days
  4. €275.0830 days
  5. €374.7921 days
  6. €526.4214 days
  7. €491.027 days
  8. €667.433 days
  9. €871.571 days
Cheapest lead time
Fares bottom out around 60 days ahead, at €232.60.
How much it moves
The gap between the cheapest and most expensive lead time is 275 percent. The most expensive point is €871.57, 1 days out.
What that means
Today sits inside the cheap window, which closes about 60 days before departure. Waiting from here has usually cost money on this corridor rather than saved it.
Day of the week

Which departure day costs least

Median cheapest fare for each weekday, taken across the next three weeks of real prices.

  1. €417.86Sun
  2. €352.96Mon
  3. €311.07Tue
  4. €357.68Wed
  5. €491.02Thu
  6. €450.90Fri
  7. €445.00Sat
Terminals

Where you leave from and where you arrive

The stations, airports and ports each mode on this corridor actually uses.

Indianapolis

Air
  • IND

Seattle

Air
  • SEA
  • BFI
The journey

What the journey actually looks like

Direct or connecting, how far the route really runs, and what happens when a connection is missed.

Direct or connecting
20% of the services we sell on this corridor run through without a change. The remaining 80% involve one connection.
How far it really runs
The route covers 3,096 km against 3,006 km in a straight line, a detour of 3 percent. Track and road geometry account for the difference.
Where the change is
Connections are made at Chicago, Denver, Minneapolis, Kansas City. The gap between arriving and leaving is 69 minutes, of which about 5 is walking.
If the connection is missed
The tightest connection we sell here has a 14 percent chance of not being made on the timetable alone. Part of this journey is a self transfer between separate tickets, so leave more time than the minimum and expect to check in again.
First and last departure
The first service of the day leaves Indianapolis at 06:40 and the last at 07:30, across 5 departures. The return direction keeps its own timetable, so the times back are not these times reversed.

Questions about Indianapolis to Seattle

The questions people actually ask about this trip, answered from the same prices and times the page above is built on rather than written once and left to go stale.

How long does the Flight from Indianapolis to Seattle take?

The Flight from Indianapolis to Seattle takes 7h 52m door to door, of which 4h 42m is spent moving. The route runs 3,096 km. The difference between the two times is reaching the terminal and leaving it at the far end, which every time on this page includes.

How much does the Flight from Indianapolis to Seattle cost?

The Flight from Indianapolis to Seattle starts at €311.07 for one passenger, checked on September 29, 2026. A typical fare is €300.45. Both are the total including taxes, supplier fees and our service fee, so the price here is the price at checkout.

Who runs the Flight from Indianapolis to Seattle?

1 operators run the Flight from Indianapolis to Seattle: Alaska Airlines. Between them they file around 5 departures a day. The operator table on this page compares them on fare, journey time, cruising speed, fare conditions and what is provided on board.

Which terminal does the Flight from Indianapolis to Seattle use?

The Flight from Indianapolis to Seattle leaves from Indianapolis IND and arrives at Seattle SEA. Allow about 3h 10m for reaching the departure terminal and leaving the arrival one. That time is already inside every door to door figure quoted on this page.

When should I book the Flight from Indianapolis to Seattle?

Fares for the Flight from Indianapolis to Seattle bottom out around 60 days ahead, at €232.60. The gap between the cheapest and most expensive lead time across the window is 275 percent, measured on September 29, 2026. Booking inside the final week has consistently cost more.

How much CO2 does the Flight from Indianapolis to Seattle produce?

The Flight from Indianapolis to Seattle produces about 458.2 kg of CO2 per passenger over 3096 km, which works out at roughly 148 grams per passenger kilometer. That figure is for the whole journey and for one traveler, not for the vehicle.

Where these numbers come from

Observed service A carrier record shows this named operator serving this named pair, and we carry that through unchanged.

Schedules, seat counts and fares are generated by our own model until the supplier contracts are signed. Places, coordinates, operators, which operator serves which pair, and every distance are real. We would rather say that on every page than let a modeled number pass for a filed one.

Defined in full at Door to door, Fares, The booking window, Carbon

On this page
Every figure above was computed for Indianapolis to Seattle on September 10, 2026: 3096 km of route against 3006 km in a straight line, 5 services a day, 1 operators, a cheapest fare of €311.07, and 7h 52m door to door on the fastest mode. The return direction is computed separately and its numbers are not these numbers.

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