Find cheap airlines flights from Seattle to Billings

You can choose from 1 airlines that fly from Seattle to Billings, including Delta Air Lines, Alaska Airlines has lowest fares on this route.
Delta Air Lines logo Delta Air Lines
Airlines are determined based on actual purchased flight tickets from Seattle to Billings according to previous 12 months data from Trip.com.

Book direct flights from Seattle to Billings: One way flights from $127, round trip flights from $258. Find flight deals for the next 3 months below.

Displayed flight fares from Seattle to Billings are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Flight Info | Seattle to Billings

The distance between Seattle and Billings is approximately 1,064.78 km. It takes around 1 hour 54 minutes on average to fly from Seattle to Billings. Based on Trip.com's data travel demand peaks in July. The off-season for travel is October.

Cheapest one-way flight price$84
Cheapest round-trip ticket price$231
Off-season for travelOctober
Peak season for travelJuly
Flight distance1,064.78 km
Average flight time1 hour 54 minutes
Popular airlineDelta Air Lines
Flight statistics for the Seattle–Billings route are based on aggregated booking data from Trip.com over the past 12 months.

Frequently Asked Questions

  • What are the cheapest flights from Seattle to Billings (SEA-BIL)?

    Based on Trip.com data, Delta Air Lines offers one-way fares as low as $84 on Cheapest nonstop routes (e.g. SEA to BIL on Thu, Mar 12), while Delta Air Lines offers Cheapest nonstop round-trips from $231 departing on Sun, Feb 8 and returning on Wed, Feb 11.
  • At the moment, you can catch a nonstop flight from Seattle to Billings with the following airlines, including: Hawaiian Airlines Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.
  • It takes around 1 hour 54 minutes to fly from Seattle (SEA) to Billings (BIL).
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Seattle to Billings is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • Based on Trip.com data in the past 4 weeks, there is 12 flight per week flying from Seattle to Billings. You can check the weekly schedule for popular airlines on this route below: Hawaiian Airlines: S/M/T/W/T/F/S -- HA6607 (15:56)
  • To find best deals on flights from Seattle to Billings, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Thu, Mar 12, with one-way flights priced at just $84.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Alaska Airlines.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for Billings travel is around July.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Seattle to Billings is October, when demand for travel is lower.
  • After crunching the numbers on our February flight calendar, it's currently cheapest to fly from Seattle to Billings on February 20, 2026 with Hawaiian Airlines, with prices starting at $90.
  • You can land at any one of the following hubs in Billings, with Seattle–Tacoma International Airport to Billings Logan International Airport (SEA-BIL) is by far the most common option on this route: Billings Logan International Airport (BIL).
  • The time difference between Billings and Seattle is 1h.
  • Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.

Trip.com airline insights on flights from Seattle to Billings

Which airlines operate the most flights from Seattle to Billings?

Data is based on the number of flights from Seattle to Billings operated by each airline on Trip.com in the past month.

Based on Trip.com data from the past month, Alaska Airlines operates the most flights from Seattle to Billings, with 15 flight per week.

3
7
11
15
Alaska Airlines
15
Alaska Airlines
Hawaiian Airlines
15
Hawaiian Airlines
British Airways
8
British Airways
Qatar Airways
8
Qatar Airways
Korean Air
7
Korean Air

How many flights are there each day from Seattle to Billings?

Data is based on the number of flights from Seattle to Billings for each day of the week on Trip.com over the last month.

Based on Trip.com data from the past month, the most flights from Seattle to Billings depart on Friday, and the fewest flights depart on Monday.

34
31
27
24
Highest
27
Mon
27
Tue
28
Wed
28
Thu
34
Fri
34
Sat
30
Sun