£56 Find Cheap Flights from Seattle to Boise – Compare and Save

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.

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.

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

• Alaska Airlines
• Delta

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

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 travellers should check the fare details before booking.

On this route, stopover flights are cheaper than direct options on average. Stopover fares average £124 return via Oakland (OAK), compared with £168 for direct.

There is no standard. Checked bag policies vary by airline on this route. Most carriers charge £26–£67 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 Embraer 175 (Enhanced Winglets) variants.

Connecting flights from Seattle to Boise most commonly pass through:

• Sacramento Intl (SMF) – 75% of one-stop connections
• Oakland (OAK) – 25% of one-stop connections
Together, these airports account for 100% of one-stop bookings on this route.

On the Seattle to Boise route, being flexible with your departure day can save you up to 41%. Saturday is the cheapest day at £145 return on average, while Sunday is the most expensive at £242 – a £97 difference. Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

Morning is the busiest departure period on Seattle to Boise flights, with 36% leaving in that window. Afternoon departures account for 36%, Evening flights for 21%, and Night flights for 7%.

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

• Earliest: departs at 06:30 and lands at 08:02
• Latest: departs at 23:01 and lands at 00:33.

The flight takes about 1h 32m.

Last-minute fares on this route (booked within 2 weeks of departure) run 121% above the route average of £169. Book 18 weeks before departure for the lowest fares.

A direct flight from Seattle to Boise takes 1h 32m, 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.

Yes. Based on fares seen in the past 5 days, return flight prices on this route showed a wide range, from about £130 to £604. That means the highest observed fare was about 5x higher than the lowest one.

One-way fares from Seattle to Boise are currently lower than usual. Average one-way flight prices are about £77, which is 48% below the typical average for this route.

Flying via Oakland (OAK) gives the shortest average 1-stop total travel time of 4h 57m, compared to 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.

Boise Air Term. Gowen Fld Airport (BOI) hosts 5 major car hire companies, with daily rates starting from around £23 for economy cars. Top options include:
• Budget
• Alamo
• Hertz
• Enterprise Rent-A-Car
• Avis

Return flights from Seattle to Boise range from £116 to £254, with an average of £169 over the past 12 months. Anything below £116 counts as a good deal.

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

• • Alaska Airlines
• • Delta