What percentage of Boise to Seattle flights are direct?

Across the trailing quarter, approximately 55% of flights from Boise to Seattle are direct. For flights that include stopovers, travelers typically experience one stop. This means a significant portion of routes offer the convenience of a non-stop journey.

How many hours is the flight from Boise to Seattle?

The median direct flight time from Boise to Seattle is approximately 2 hours and 59 minutes. This corresponds to a distance of 641 kilometers. For flights that include one stop, the median travel time increases to about 6 hours and 49 minutes. Travelers can expect a relatively short journey for direct routes.

How often do Boise to Seattle flight prices drop?

Historically, prices for flights from Boise to Seattle have shown frequent drops across the trailing 30 days. This route is classified as experiencing frequent price fluctuations. Travelers may find opportunities for savings due to these regular price adjustments.

Flights From Boise

To Seattle

Cheap Flights from Boise to Seattle

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Deals from

Boise

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Prices updated 1 day ago

461 airlines compared

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Fares are subject to change and may not be available for all dates. (Data last updated Sep 14, 2026.)

Today’s best flight deals from Boise to Seattle

Explore current cheapest deals departing from Boise to Seattle

2026-10-10 – 2026-10-11
BOI - Seattle
48% AI deal score
$121
$116
Round trip
2026-10-09 – 2026-10-23
BOI - Seattle
46% AI deal score
$100
$116
Round trip
2026-10-24 – 2026-10-31
BOI - Seattle
46% AI deal score
$114
$116
Round trip
2026-10-06 – 2026-10-11
BOI - Seattle
47% AI deal score
$120
$116
Round trip
2026-12-11 – 2026-12-25
BOI - Seattle
46% AI deal score
$113
$116
Round trip
2026-10-11 – 2026-10-18
BOI - Seattle
44% AI deal score
$115
$150
Round trip
2026-11-06 – 2026-11-09
BOI - Seattle
44% AI deal score
$123
$155
Round trip
2026-10-04 – 2026-10-07
BOI - Seattle
44% AI deal score
$124
$175
Round trip
2026-11-17 – 2026-11-26
BOI - Seattle
43% AI deal score
$118
$192
Round trip
2026-10-22 – 2026-10-27
BOI - Seattle
46% AI deal score
$231
$196
Round trip

Boise to Seattle: Overview

Insights for flights from Boise to Seattle

Right now, only 2% of recent fares from Boise to Seattle are classified as a good price. Fares typically range from $197–$653, with a median of $342. Current fares are significantly above the typical level, suggesting that now might not be the optimal time 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 offer more budget-friendly travel opportunities compared to the overall median.

A typical journey from Boise to Seattle takes approximately 2h 59m, including connections. This route is classified as short-haul, covering a distance of 641 kilometers. Given that a meaningful share of itineraries are non-stop, the overall journey time reflects a mix of direct and connecting options.

For flights from Boise to Seattle, a meaningful share are non-stop, the rest connect once, with 55% of recent fares being direct. For itineraries that include connections, the typical number of stopovers is 1. This indicates that while direct options are available, you may also find routes that involve a single stop.

How much is a round trip from Boise to Seattle

Regular price: $91 - $268

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

The regular price range for flights from Boise to Seattle is between $91 and $268. The current lowest deal is $116 with Deutsche Luft Hansa, for travel from Oct 20-Oct 27.

now $116

Low $91

High $268

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. Prices are generally lower from January to 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, Sep 14

⌛ Last-Minute

BOI - Seattle

Boise (BOI) - Seattle (SEA)

Frontier Airlines

$424

$390

One-way

Fri, Sep 18

⌛ Last-Minute

BOI - Seattle

Boise (BOI) - Seattle (SEA)

Frontier Airlines

$414

$339

One-way

Thu, Oct 1

⌛ Last-Minute

BOI - Seattle

Boise (BOI) - Seattle (SEA)

Alaska Airlines, Inc.

$120

$117

One-way

Sun, Oct 4

⌛ Last-Minute

BOI - Seattle

Boise (BOI) - Seattle (SEA)

Deutsche Luft Hansa

$124

$176

One-way

Tue, Oct 6

⌛ Last-Minute

BOI - Seattle

Boise (BOI) - Seattle (SEA)

Alaska Airlines, Inc.

$119

$117

One-way

Fri, Oct 9

⌛ Last-Minute

BOI - Seattle

Boise (BOI) - Seattle (SEA)

Deutsche Luft Hansa

$100

$116

One-way

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

3 nights

Oct 28 - Oct 31

$235 → $151

36%

2 nights

Oct 24 - Oct 26

$234 → $151

36%

2 nights

Sep 18 - Sep 20

$414 → $337

19%

5 nights

Oct 22 - Oct 27

$231 → $196

15%

Popular Airports to fly from Boise to Seattle

Boise - Seattle route insights

💸 Price insights

Recent fares are below the typical level.

Recent fares from Boise to Seattle are below the typical level for this route.

📅 Best time to fly

April, July, and May offer lower median prices.

Historically, April ($157), July ($164), and May ($177) have offered lower median prices.

⏱️ Flight duration

Direct flights average 2h 59m.

Direct flights from Boise to Seattle typically take 2 hours and 59 minutes.

✈️ Airlines & availability

55% of recent flights are direct.

Historically, 55% of flights on this route are direct, with frequent deals available.

🏆 Airline highlight

Alaska Airlines, Inc. offers direct flights.

Alaska Airlines, Inc. has offered direct flights on the Boise to Seattle route.

🎯 Booking tip

Deals are frequent on this route.

Deals for flights from Boise to Seattle are frequently available.

Boise main airports to depart from

Boise (BOI)

Cheapest

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

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

💸 Flights from ~$185

Seattle main airports to arrive at

Seattle–Tacoma International (SEA)

Cheapest

Seattle–Tacoma International is a key arrival airport for flights from Boise to Seattle.

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

💸 Flights from ~$185

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.

📍 ~40 km from Seattle (reachable by car)

💸 Flights from ~$314

Business & First Class Flight Deals to Seattle

38% AI deal score

$562

Frequently Asked Questions About Flights to Seattle

Historically, the optimal booking window for flights from Boise to Seattle is typically 14-27 days before departure. During this period, the average price for a flight is around $198. Booking within 0-6 days of departure, however, sees the average price increase significantly to $1330. Similarly, booking 60+ days out usually results in a higher average price of $347.

Based on historical data 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 higher, with 75% of observed prices being $653 or less. Aiming for prices at or below the $197 threshold typically indicates a favorable deal.

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. In contrast, the annual median price for this route is $342, indicating that these months offer significant savings. May also presents a favorable median price of $177.

Boise to Seattle: Overview

Insights for flights from Boise to Seattle

How much is a round trip from Boise to Seattle

Regular price: $91 - $268

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

The regular price range for flights from Boise to Seattle is between $91 and $268. The current lowest deal is $116 with Deutsche Luft Hansa, for travel from Oct 20-Oct 27.

now $116

Low $91

High $268

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