C$ 159 Find Cheap Flights from Boise to Seattle – Compare and Save

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

• Earliest: departs at 6:00 am and lands at 7:49 am
• Latest: departs at 9:59 pm and lands at 11:48 pm.

The flight takes about 1h 49m.

A direct flight from Boise to Seattle takes 1h 49m, covering 1,031 km.

No, a passport is not required for this domestic route, but you will need another form of identification, such as a driver's licence.

Round-trip flights from Boise to Seattle range from C$ 218 to C$ 466, with an average of C$ 328 over the past 12 months. Anything below C$ 218 counts as a good deal.

Last-minute fares on this route (booked within two weeks of departure) run 121% above the C$ 328 route average. Book 8 weeks before departure for the lowest fares.

On this route, direct and layover fares are close on average, with direct at C$ 327 round-trip and layover options via San Francisco (SFO) at C$ 317.

There is no standard. Checked bag policies vary by airline on this route. Most carriers charge C$ 49–C$ 126 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 Boise to Seattle flights, with 47% leaving in that window. Afternoon departures account for 30%, Evening flights for 23%, and Night flights for 0%.

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about C$ 304 to C$ 1,174. That means the highest observed fare was about 4x higher than the lowest one.

Two airlines offer in-flight Wi-Fi on Boise to Seattle 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 Boise to Seattle are currently lower than usual. Average one-way flight prices are about C$ 190, which is 38% below the typical average for this route.

Seattle/Tacoma Intl Airport (SEA) hosts 5 major car rental companies, with daily rates averaging C$ 86 for economy cars. Top options include:

• Fox
• Europcar
• Thrifty
• Budget
• Hertz

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

Night flights have the fewest delays on this route, while evening departures tend to have the most.

A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the Boise to Seattle route, 12% of flights were delayed in the past three months, with delays averaging 1h 57m.

One-stop flights from Boise to Seattle most commonly connect through:

• San Francisco (SFO) – 29% of one-stop connections
• Sacramento Intl (SMF) – 29% of one-stop connections
• Spokane (GEG) – 14% of one-stop connections
• Las Vegas Harry Reid Intl (LAS) – 14% of one-stop connections

Yes. Flexible dates can save you up to 30% on flights from Boise to Seattle. Saturday is the cheapest departure day at C$ 292 round-trip on average, while Monday is the most expensive at C$ 415, a difference of C$ 123.

Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

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

• Alaska Airlines
• Delta

Flying via Portland (PDX) gives the shortest average 1-stop total travel time at 3h 23m, compared with 4h 52m via San Francisco (SFO) and 5h 56m via Sacramento Intl (SMF).

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

Some of the most popular sights in Seattle are Lumen Field, T-Mobile Park, and Seattle Waterfront. These are among the most viewed places in Seattle on KAYAK.

Among airlines operating Boise to Seattle 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 carry-on bag and a checked bag in Economy Class
• Delta: a carry-on bag and a checked bag in First Class
• Hawaiian Airlines: a cabin bag in Economy Class class

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