Seattle–Tacoma International Airport
Seattle, United StatesSEA / KSEA
International hub · 132 direct destinations · 3 runways · longest runway 11,900 ft
71 °F · CloudySource: METAR observation via the NOAA Aviation Weather Center
Route
Seattle → Billings
SEA
SeattleSeattle–Tacoma International Airport
SeattleSeattle–Tacoma International AirportBILBillingsBillings Logan International Airport
BillingsBillings Logan International Airport- Distance
- 662 mi
- Estimated flight time
- ~1h 50m
Billings is currently 1 hour ahead of Seattle.
Observed nonstop
How often does this route fly?
Frequency
A couple of times a day
On average around 2.5 flights a day, observed from October 2025 to September 2026.
- 2.5
- flights per day
- 3
- busiest month · Oct
- 2
- quietest month · Dec
- 1 hr 28 min
- measured flight time
- 12 / 12
- months seen
Through the year
Per day, month by month
- 2Jan2026
- 2Feb
- 2Mar
- 2Apr
- 3May
- 3Jun
- 3Jul
- 3Aug
- 2Sep
- 3Oct2025
- 3Nov
- 2Dec
Airlines
Who flies it
Horizon Airall year
Alaska Airlinesnow and then
Through the day
Departure times
Local time in Seattle. Most departures between 20:00 and 23:00.
- 00:00
- 01:00
- 02:00
- 03:00
- 04:00
- 05:00
- 06:00
- 07:00
- 08:00
- 09:00
- 10:00
- 11:00
- 12:00
- 13:00
- 14:00
- 15:00
- 16:00
- 17:00
- 18:00
- 19:00
- 20:00
- 21:00
- 22:00
- 23:00
Through the week
By weekday
- 2.3Mon
- 2.3Tue
- 2.3Wed
- 2.1Thu
- 2.4Fri
- 2.4Sat
- 2.2Sun
Fleet
Aircraft observed
- Embraer 175E75L98%
- Boeing 737-900B7391%
- Boeing 737 MAX 9B39M0%
All the numbers in a table
| Month | Per day | Seen | Airlines |
|---|---|---|---|
| January 2026 | 2 | 57 |
|
| February 2026 | 2 | 52 |
|
| March 2026 | 2 | 54 |
|
| April 2026 | 2 | 55 |
|
| May 2026 | 3 | 70 |
|
| June 2026 | 3 | 83 |
|
| July 2026 | 3 | 101 |
|
| August 2026 | 3 | 76 |
|
| September 2026 | 2 | 61 |
|
| October 2025 | 3 | 82 |
|
| November 2025 | 3 | 77 |
|
| December 2025 | 2 | 57 |
|
Airlines observed on this route
From observed callsign routes on SEA-BIL - not a booking guarantee.
About this route
- Domestic route: both airports are in the same country.
- The opposite direction has also been observed as a direct connection.
- Direct destinations observed from Seattle: 132.
- Direct destinations observed from Billings: 26.
The airports on this route
Billings Logan International Airport
Billings, United StatesBIL / KBIL
Regional airport · 26 direct destinations · 3 runways · longest runway 10,518 ft
62 °F · Partly cloudySource: METAR observation via the NOAA Aviation Weather Center
Alternative airports for this journey
Same journey, a different airport nearby - with an observed direct connection.
About the route from Seattle to Billings
The observed direct connection between Seattle–Tacoma International Airport (SEA) and Billings Logan International Airport (BIL) covers approximately 662 mi. The estimated flight time is around 1h 50m. Alaska Airlines and Horizon Air have been observed on this connection in the available route data.
Frequently asked questions about this route
- How far is Seattle from Billings by air?
- The great-circle distance between Seattle–Tacoma International Airport and Billings Logan International Airport is approximately 662 mi.
- How long is the flight from Seattle to Billings?
- Based on the distance, the estimated flight time is about 1h 50m. This is an estimate, not a schedule.
- Is there a direct connection from Seattle to Billings?
- Yes, a direct connection between SEA and BIL has been observed in our route data.
- Which airlines have been observed on this route?
- In the available route data: Alaska Airlines and Horizon Air.
- How often is there a flight from Seattle to Billings?
- On average around 2.5 flights a day, measured over twelve months (October 2025 to September 2026) in the flight archive, with 825 observed flights. Mainly Horizon Air, Alaska Airlines. That is an observation, not a timetable.
- What is the current time difference between Seattle and Billings?
- Billings is currently 1 hour ahead of Seattle.
Where this data comes from
The route data comes from the flight archive (ADS-B, adsb.lol): which connections actually flew over the last twelve full months and who flew them, combined with our own airport, runway, and airline datasets. It is reference data about observed routes - not a current timetable and no claim about bookability.
The frequency and aircraft on this page come from the flight archive (ADS-B, 12 months, October 2025 to September 2026), summarized per route per month. We do not see every flight, so it is a floor, not a count.
Route data updated on October 11, 2026.