What percentage of Boise to Seattle flights are direct?

In the trailing 90 days, approximately 55% of flights from Boise to Seattle have been direct. This indicates that a majority of travelers on this route can find non-stop options. For flights that do include stopovers, the median number of stopovers is typically one. This provides travelers with a good chance of finding a convenient direct flight.

How many hours is the flight from Boise to Seattle?

The median flight time for a direct flight from Boise to Seattle is approximately 2 hours and 59 minutes, covering a distance of 641 kilometers. For flights that include one stop, the median duration increases to about 6 hours and 49 minutes. Travelers should factor in these durations when planning their journey, with direct flights offering a considerably shorter travel time.

How often do Boise to Seattle flight prices drop?

Historically, Boise to Seattle flight prices are classified as dropping frequently. This suggests that travelers on this route have regular opportunities to find reduced fares. While specific timing can vary, the frequent nature of price drops indicates a dynamic market for this particular route. Keeping an eye on price trends can be beneficial for securing a good deal.

Flights From Boise

To Seattle

Cheap Flights from Boise to Seattle

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Deals from

Boise

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Prices updated 2 days ago

405 airlines compared

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Fares are subject to change and may not be available for all dates. (Data last updated Jul 26, 2026.)

Today’s best flight deals from Boise to Seattle

Explore current cheapest deals departing from Boise to Seattle

2026-09-05 – 2026-09-06
BOI - Seattle
45% AI deal score
$124
$136
Round trip
2026-09-23 – 2026-09-26
BOI - Seattle
45% AI deal score
$127
$156
Round trip
2026-09-12 – 2026-09-15
BOI - Seattle
45% AI deal score
$124
$156
Round trip
2026-09-05 – 2026-09-08
BOI - Seattle
45% AI deal score
$124
$156
Round trip
2026-09-01 – 2026-09-05
BOI - Seattle
45% AI deal score
$124
$156
Round trip
2026-09-05 – 2026-09-07
BOI - Seattle
44% AI deal score
$125
$163
Round trip
2026-08-26 – 2026-08-29
BOI - Seattle
44% AI deal score
$137
$176
Round trip
2026-08-22 – 2026-08-26
BOI - Seattle
44% AI deal score
$137
$176
Round trip
2026-09-15 – 2026-09-22
BOI - Seattle
45% AI deal score
$117
$176
Round trip
2026-09-01 – 2026-09-19
BOI - Seattle
44% AI deal score
$100
$176
Round trip

Boise to Seattle: Overview

Insights for flights from Boise to Seattle

Right now, fares for flights from Boise to Seattle are above the typical level, with only 2% of recent fares classified as a good price. Prices typically range from $197–$653, with a median of $342. New deals appear almost daily, suggesting frequent opportunities for travelers to find cheap flights from Boise to Seattle.

When considering the cheapest time to fly from Boise to Seattle, April stands out with a median fare of $157. Following closely, July offers a median fare of $164, and May presents another favorable option with a median of $177. These months represent the most affordable periods to plan your travel.

A typical journey from Boise to Seattle takes approximately 2h 59m, including connections. Given that a meaningful share of itineraries are non-stop, the overall median journey time reflects a mix of direct and connecting options. For those itineraries that do connect, the typical number of stopovers is 1.

The route from Boise to Seattle covers a distance of 641 km, classifying it as a short-haul flight. This means you can expect a relatively quick travel experience between these two cities.

How much is a round trip from Boise to Seattle

Regular price: $96 - $332

Prices for flights from Boise to Seattle are currently within the regular range.

The regular price range for this route is $96 to $332. The current lowest deal is $136 with Alaska Airlines, Inc. for travel from Sep 5-Sep 6.

now $136

Low $96

High $332

The cheapest time to fly from Boise to Seattle

The cheapest month to fly from Boise to Seattle is May, with a median price of $177. The most expensive month is July, with a median price of $885. Generally, prices are lower from January to December, specifically in January, May, September, October, November, and December.

May

Cheapest

Flights from $177

July

Most Expensive

Flights from $885

Jan

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Direct flights from Boise to Seattle

Alaska Airlines, Inc.

Last-minute flights going from Boise to Seattle

Mon, Jul 27

⌛ Last-Minute

BOI - Seattle

Boise (BOI) - Seattle (SEA)

$411

$357

One-way

Fri, Aug 7

⌛ Last-Minute

BOI - Seattle

Boise (BOI) - Seattle (SEA)

$307

$267

One-way

Tue, Aug 11

⌛ Last-Minute

BOI - Seattle

Boise (BOI) - Seattle (SEA)

$274

$196

One-way

Thu, Aug 13

⌛ Last-Minute

BOI - Seattle

Boise (BOI) - Seattle (SEA)

$271

$237

One-way

Thu, Aug 13

⌛ Last-Minute

BOI - Everett

Boise (BOI) - Everett (PAE)

Alaska Airlines, Inc.

$369

$342

One-way

Wed, Aug 19

⌛ Last-Minute

BOI - Seattle

Boise (BOI) - Seattle (SEA)

Alaska Airlines, Inc.

$138

$186

One-way

Biggest price drops on these dates for flights from Boise to Seattle

1 night

Aug 22 - Aug 23

$260 → $182

30%

1 night

Aug 11 - Aug 12

$274 → $196

28%

1 night

Aug 26 - Aug 27

$259 → $182

30%

1 night

Nov 3 - Nov 4

$263 → $187

29%

Popular Airports to fly from Boise to Seattle

Boise - Seattle route insights

💸 Price insights

Recent fares are above the typical level.

Recent fares from Boise to Seattle have been above the typical level at $136.

📅 Best time to fly

Fly in May for the best prices.

Historically, May has been the cheapest month to fly from Boise to Seattle, with a median price of $177.

⏱️ Flight duration

Direct flights take 2h 59m.

The typical direct flight from Boise to Seattle takes 2 hours and 59 minutes.

✈️ Airlines & availability

55% of recent flights are direct.

55% of recent flights from Boise to Seattle are direct, with frequent deals available.

🏆 Airline highlight

Alaska Airlines, Inc. offers direct flights.

Alaska Airlines, Inc. is one airline offering direct flights on the Boise to Seattle route.

🎯 Booking tip

Consider booking in advance for better deals.

Booking in advance can help secure better prices on flights from Boise to Seattle.

Boise main airports to depart from

Boise (BOI)

Cheapest

Boise Airport (BOI) is a convenient departure point for flights to Seattle.

📍 ~6 km from Boise city center (reachable by car)

💸 Flights from ~$137

Seattle main airports to arrive at

Seattle–Tacoma International (SEA)

Cheapest

Seattle–Tacoma International is a major hub for flights to Seattle from Boise.

📍 ~18 km from Seattle city center (reachable by car)

💸 Flights from ~$137

Airports nearby Seattle used as alternative

Paine Field Everett (PAE)

Paine Field Everett can be a useful alternative for travelers located in North Seattle or Snohomish County.

📍 ~45 km from Seattle (reachable by car)

💸 Flights from ~$314

Business & First Class Flight Deals to Seattle

77% AI deal score

$1,372

$597

Save $775

Frequently Asked Questions About Flights to Seattle

Historically, the optimal time to book flights from Boise to Seattle is typically 14-27 days before departure. During this period, the average price for a flight has been around $198. Booking within 0-6 days of departure, however, sees a significant price increase, with an average cost of $1330. Planning ahead by at least two weeks can lead to substantial savings on this route.

Across the trailing quarter, a good price for a flight from Boise to Seattle is considered to be $197 or less. The median price for this route has been $342. Prices can go as high as $653 or more for the upper quartile of fares. Therefore, if you find a fare at or below $197, it represents a favorable deal based on historical data.

Historically, April has been one of the cheapest months to fly from Boise to Seattle, with a median price of $157. July also offers competitive pricing, with a median of $164, and May follows closely with a median of $177. These months typically offer prices significantly lower than the annual median of $342 for this route. Travelers looking for more affordable options should consider these months.

Boise to Seattle: Overview

Insights for flights from Boise to Seattle

The route from Boise to Seattle covers a distance of 641 km, classifying it as a short-haul flight. This means you can expect a relatively quick travel experience between these two cities.

How much is a round trip from Boise to Seattle

Regular price: $96 - $332

Prices for flights from Boise to Seattle are currently within the regular range.

The regular price range for this route is $96 to $332. The current lowest deal is $136 with Alaska Airlines, Inc. for travel from Sep 5-Sep 6.

now $136

Low $96

High $332

The cheapest time to fly from Boise to Seattle

May

Cheapest

Flights from $177

July

Most Expensive

Flights from $885

Jan

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec