$140 Find Cheap Flights from Seattle to Billings - Compare and Save

Among airlines operating Seattle to Billings flights:

• Alaska Airlines: offers extra legroom; offers free seat selection

Extra legroom and free seat selection availability depends on fare class and route.

Only Alaska Airlines operates flights between Seattle and Billings.

Flights from Seattle to Billings usually depart from Seattle/Tacoma Intl (SEA) and arrive at Billings Logan Intl (BIL).

Here are some options for this route, based on selected ticket types and cabin classes:

• Alaska Airlines: a cabin bag and a checked bag in Economy Class

Bag allowance can vary by ticket type, cabin class, route and airline, so travelers should check the fare details before booking.

Two cabin classes are available on flights from Seattle to Billings:

• Economy Class
• First Class

On this route, layover flights are cheaper than nonstop options on average. Layover fares average $299 round-trip via Salt Lake City (SLC), compared to $365 for nonstop.

Connecting flights from Seattle to Billings most commonly pass through:

• Salt Lake City (SLC) - 67% of one-stop connections
• Denver Intl (DEN) - 33% of one-stop connections
Together, these airports account for 100% of one-stop bookings on this route.

Yes. Being flexible with your travel dates can save you up to 53% on the Seattle to Billings route. Tuesday is the cheapest departure day at $252 round-trip on average, while Monday is the most expensive at $528, a difference of $276. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

Morning is the busiest departure period on Seattle to Billings flights, with 34% of flights leaving in that window. Afternoon departures account for 33%, evening flights for 33%, and night flights for 0%.

These are the earliest and latest flight times available from Seattle to Billings:

• Earliest: departs at 8:20 am and lands at 10:16 am
• Latest: departs at 9:15 pm and lands at 11:11 pm.

The flight takes about 1h 56m.

A nonstop flight from Seattle to Billings takes 1h 56m, covering 662 miles.

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $227 to $1,617. That means the highest observed fare was about 7x higher than the lowest one.

One-way fares from Seattle to Billings are currently lower than usual. Average one-way flight prices are about $186, which is 37% below the typical average for this route.

Flying via Denver Intl (DEN) gives the shortest average 1-stop total travel time at 5h 27m, compared with 5h 29m via Salt Lake City (SLC).

Billings is 1 hour ahead of Seattle (Mountain Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

Billings Logan Intl Airport (BIL) hosts 5 major car rental companies, with daily rates starting from around $11 for economy cars. Top options include:
• Rent-A-Wreck
• Budget
• Avis
• Alamo
• Hertz

Round-trip flights from Seattle to Billings range from $235 to $505, with an average of $371 over the past 12 months. Anything below $235 counts as a good deal.

Alaska Airlines is the only airline on the Seattle to Billings route offering in-flight Wi-Fi. Pricing depends on fare class.