$105 Find Cheap Flights from Seattle to Boise - Compare and Save

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

• Earliest: departs at 6:30 am and lands at 8:00 am
• Latest: departs at 11:01 pm and lands at 12:31 am.

The flight takes about 1h 30m.

Three cabin classes are available on flights from Seattle to Boise:

• Economy Class
• Business Class
• First Class

A nonstop flight from Seattle to Boise takes 1h 30m, covering 398 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.

Round-trip flights from Seattle to Boise range from $157 to $356, with an average of $245 over the past 12 months. Anything below $157 counts as a good deal.

Last-minute fares on this route (booked within two weeks of departure) run 106% above the $245 route average. Book 18 weeks before departure for the lowest fares.

On this route, nonstop flights are cheaper than layover options on average. Nonstop fares average $245 round-trip, compared to $281 via a layover through San Francisco (SFO).

There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $35–$90 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

The Boeing 737-800 Passenger/BBJ2 (winglets) family is used most often on this route, operated mainly by Alaska Airlines. Other aircraft seen on the route include Boeing 737-700 variants.

Morning is the busiest departure period on Seattle to Boise flights, with 39% of flights leaving in that window. Afternoon departures account for 31%, evening flights for 23%, and night flights for 7%.

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $201 to $880. That means the highest observed fare was about 4x higher than the lowest one.

Two airlines offer in-flight Wi-Fi on Seattle to Boise flights:

• Alaska Airlines
• Delta

Pricing varies by airline and fare class. Some plans are included with the ticket or loyalty program; others are paid add-ons priced by flight length.

One-way fares from Seattle to Boise are currently lower than usual. Average one-way flight prices are about $120, which is 43% below the typical average for this route.

Boise Air Term. Gowen Fld Airport (BOI) hosts 5 major car rental companies, with daily rates averaging $84 for economy cars. Top options include:

• Budget
• Alamo
• Hertz
• Enterprise Rent-A-Car
• Avis

Flights from Seattle to Boise usually depart from Seattle/Tacoma Intl (SEA) and arrive at Boise Air Term. Gowen Fld (BOI).

Connecting flights from Seattle to Boise most commonly pass through:

• Sacramento Intl (SMF) - 75% of one-stop connections
• San Francisco (SFO) - 25% of one-stop connections

Yes. Flexible dates can save you up to 40% on flights from Seattle to Boise. Friday is the cheapest departure day at $217 round-trip on average, while Sunday is the most expensive at $357, a difference of $140.

KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

2 airlines operate flights between Seattle and Boise. The airlines offering nonstop flights on this route include:

• Alaska Airlines
• Delta

Flying via San Francisco (SFO) gives the shortest average 1-stop total travel time at 4h 55m, compared with 6h 50m via Sacramento Intl (SMF).

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

Some of the most popular sights in Boise are Idaho Central Arena, Julia Davis Park and Discovery Center of Idaho. These are among the most viewed places in Boise on KAYAK.

Among airlines operating Seattle to Boise flights:

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

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

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
• Delta: a cabin bag and a checked bag in Economy Class
• Hawaiian Airlines: a cabin bag in Economy Class class

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

A private space with power outlets, rocking chairs, and receptacles is available in the Mother's Room. The USO Mother's Room is also available to military families inside the Kid's Play Area. There are also nursing suites available in the Main Terminal on the Mezzanine Level, near Gate A9, C10, N2, D10, and D23.

Travelers from Seattle can drive through I-5 and take exit 154 B, then head west on State Road 518 until you reach the Seattle Tacoma International Airport exit. Alternatively, you can take State Highway 99 south and keep to the right on Route 509 south until you reach the exit. Finally, follow the Seattle Tacoma Airport exit by turning left onto 518.

Passengers have the option to board a train for the next part of their journey once they arrive at Boise Airport. Travelers can take a taxi or shuttle from the airport to the Amtrak train station in Downtown Boise, where they can connect by train to several locations in the area. There are also Greyhound and ValleyRide buses from the airport to destinations around Idaho.

Inn America Boise is about 0.8 miles from the airport, the Western Vista Inn is 0.6 miles from the airport, and Airport Inn is 1km from the airport. Hotels offer courtesy shuttles that pick up passengers opposite the baggage claim area. Additionally, the Boise Shuttle Service provides transportation to hotels in the surrounding area from the green curb outside the terminal.