Cheap Flights from Seattle, WA to Boise, ID from $87

One way Round trip

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On Cheapflightsplus.com you will find 13 direct and 178 connecting flights from Seattle to Boise. You can compare airfare deals from 5 airlines and multiple travel sites from $87, book and save on cheap plane tickets and last minute offers. Also check out SEA-BOI flight schedule to find best flight time, convenient departure and arrival airports.

Find One-Way and Round-Trip Seattle to Boise Flight Deals

To find the cheapest one way airline ticket select the date with the lowest price on the calendar below and click «Find Flights». To search for round-trip flight deals click on the link «Check prices for return flights» and select the date of the return flight. Cheapest flights in November: $87 (one-way), $149 (round-trip).

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Best Flights from Seattle to Boise Today

Take a look at the list of non stop flights and flights with layovers from Seattle to Boise with the lowest price of $87. The fastest direct flight takes 1h 18m and the fastest connecting – 2h 31m.

Price	Departure	Arrival	Flight Duration	Airline	Flight
from $93 Find flight	15:52 Seattle Seattle-Tacoma Intl	18:10 Boise Boise	1h 18m	Alaska Airlines	AS2356
from $93 Find flight	18:33 Seattle Seattle-Tacoma Intl	20:52 Boise Boise	1h 19m	Alaska Airlines	AS2361
from $93 Find flight	21:38 Seattle Seattle-Tacoma Intl	23:58 Boise Boise	1h 20m	Alaska Airlines	AS2112
from $93 Find flight	21:38 Seattle Seattle-Tacoma Intl	23:59 Boise Boise	1h 21m	Alaska Airlines	AS2118
from $93 Find flight	07:35 Seattle Seattle-Tacoma Intl	09:57 Boise Boise	1h 22m	Alaska Airlines	AS2251
from $93 Find flight	20:00 Seattle Seattle-Tacoma Intl	22:23 Boise Boise	1h 23m	Alaska Airlines	AS1034
from $93 Find flight	09:45 Seattle Seattle-Tacoma Intl	12:19 Boise Boise	1h 34m	Alaska Airlines	AS3460
from $128 Find flight	11:29 Seattle Seattle-Tacoma Intl	13:53 Boise Boise	1h 24m	Alaska Airlines	AS1018
from $129 Find flight	18:33 Seattle Seattle-Tacoma Intl	20:54 Boise Boise	1h 21m	Alaska Airlines	AS3478
from $151 Find flight	14:41 Seattle Seattle-Tacoma Intl	16:59 Boise Boise	1h 18m	Alaska Airlines	AS2104
from $87 Find flight	21:21 Seattle Seattle-Tacoma Intl	10:58+1 день Boise Boise	12h 37m layover 8h 12m - Las Vegas	Spirit Airlines	NK1456 NK980
from $105 Find flight	06:45 Seattle Seattle-Tacoma Intl	13:03 Boise Boise	5h 18m layover 3h 15m - Spokane	Alaska Airlines	AS2288 AS2499
from $105 Find flight	09:51 Seattle Seattle-Tacoma Intl	16:45 Boise Boise	5h 54m layover 3h 47m - Spokane	Alaska Airlines	AS276 AS2271
from $140 Find flight	09:25 Seattle Seattle-Tacoma Intl	16:12 Boise Boise	5h 47m layover 1h 51m - San Francisco	United Airlines	UA1960 UA1692
from $146 Find flight	09:25 Seattle Seattle-Tacoma Intl	22:00 Boise Boise	11h 35m layover 2h 41m - San Francisco 2h 56m - Los Angeles	United Airlines	UA1960 UA1960 UA5363
from $154 Find flight	05:15 Seattle Seattle-Tacoma Intl	16:38 Boise Boise	10h 23m layover 2h 49m - Los Angeles 1h 34m - Las Vegas	Spirit Airlines	NK1491 NK1724 G47

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*Departure and arrival times - local. Prices indicated for one-way flights. Information updated on April 03, 2025

Flight Schedule Seattle (Washington) to Boise (Idaho)

Full flight schedule will help you in detecting at what time planes fly from Seattle to Boise. You can also specify the concrete flights and airlines on the route and how long the flight actually is. Use the calendar for today, tomorrow or other specific date as some flights are available only on certain days of the week.

Departure	Flight Details	Flight Duration	Price
07:35 — 09:57	07:35 — 09:57 AS2251 Alaska Airlines Seattle — Boise	1h 22m	Find flight from$93
09:40 — 12:03	09:40 — 12:03 AS2219 Alaska Airlines Seattle — Boise	1h 23m	Find flight from$151
09:45 — 12:19	09:45 — 12:19 AS3460 Alaska Airlines Seattle — Boise	1h 34m	Find flight from$93
11:29 — 13:53	11:29 — 13:53 AS1018 Alaska Airlines Seattle — Boise	1h 24m	Find flight from$128
13:55 — 16:20	13:55 — 16:20 AS3335 Alaska Airlines Seattle — Boise	1h 25m	Find flight from$131
14:41 — 16:59	14:41 — 16:59 AS2104 Alaska Airlines Seattle — Boise	1h 18m	Find flight from$151
15:52 — 18:10	15:52 — 18:10 AS2356 Alaska Airlines Seattle — Boise	1h 18m	Find flight from$93
17:57 — 20:19	17:57 — 20:19 AS3347 Alaska Airlines Seattle — Boise	1h 22m	Find flight from$143
18:33 — 20:52	18:33 — 20:52 AS2361 Alaska Airlines Seattle — Boise	1h 19m	Find flight from$93
18:33 — 20:54	18:33 — 20:54 AS3478 Alaska Airlines Seattle — Boise	1h 21m	Find flight from$129
20:00 — 22:23	20:00 — 22:23 AS1034 Alaska Airlines Seattle — Boise	1h 23m	Find flight from$93
21:38 — 23:58	21:38 — 23:58 AS2112 Alaska Airlines Seattle — Boise	1h 20m	Find flight from$93
21:38 — 23:59	21:38 — 23:59 AS2118 Alaska Airlines Seattle — Boise	1h 21m	Find flight from$93
05:00 — 13:23	05:00 — 08:43 UA2269 United Airlines Seattle — Denver 2h 32m stop 11:15 — 13:23 UA236 United Airlines Denver — Boise	7h 23m including layover	Find flight from$141
06:15 — 13:39	06:15 — 09:02 UA1571 United Airlines Seattle — Los Angeles 1h 13m stop 10:15 — 13:39 UA4682 United Airlines Los Angeles — Boise	6h 24m including layover	Find flight from$141
06:45 — 13:03	06:45 — 07:43 AS2288 Alaska Airlines Seattle — Spokane 3h 15m stop 10:58 — 13:03 AS2499 Alaska Airlines Spokane — Boise	5h 18m including layover	Find flight from$105
07:42 — 14:10	07:42 — 08:34 AS2180 Alaska Airlines Seattle — Portland 3h 26m stop 12:00 — 14:10 AS3316 Alaska Airlines Portland — Boise	5h 28m including layover	Find flight from$141
08:45 — 14:10	08:45 — 09:46 AS2114 Alaska Airlines Seattle — Portland 2h 14m stop 12:00 — 14:10 AS3316 Alaska Airlines Portland — Boise	4h 25m including layover	Find flight from$141
08:45 — 13:06	08:45 — 09:46 AS2114 Alaska Airlines Seattle — Portland 1h 9m stop 10:55 — 13:06 AS3481 Alaska Airlines Portland — Boise	3h 21m including layover	Find flight from$166
09:51 — 16:45	09:51 — 10:54 AS276 Alaska Airlines Seattle — Spokane 3h 47m stop 14:41 — 16:45 AS2271 Alaska Airlines Spokane — Boise	5h 54m including layover	Find flight from$105
10:00 — 14:10	10:00 — 11:00 AS2213 Alaska Airlines Seattle — Portland 1h stop 12:00 — 14:10 AS3316 Alaska Airlines Portland — Boise	3h 10m including layover	Find flight from$141
10:00 — 16:33	10:00 — 11:00 AS2213 Alaska Airlines Seattle — Portland 3h 25m stop 14:25 — 16:33 AS2196 Alaska Airlines Portland — Boise	5h 33m including layover	Find flight from$141
11:56 — 19:15	11:56 — 14:13 UA2848 United Airlines Seattle — San Francisco 2h 17m stop 16:30 — 19:15 UA5720 United Airlines San Francisco — Boise	6h 19m including layover	Find flight from$140
12:35 — 19:55	12:35 — 16:17 UA1483 United Airlines Seattle — Denver 1h 28m stop 17:45 — 19:55 UA4745 United Airlines Denver — Boise	6h 20m including layover	Find flight from$141
12:35 — 21:43	12:35 — 16:17 UA1483 United Airlines Seattle — Denver 3h 18m stop 19:35 — 21:43 UA367 United Airlines Denver — Boise	8h 8m including layover	Find flight from$141
13:46 — 22:58	13:44 — 16:32 AS1300 Alaska Airlines Seattle — Los Angeles 3h 16m stop 19:50 — 22:59 AS3356 Alaska Airlines Los Angeles — Boise	8h 12m including layover	Find flight from$167
14:42 — 21:29	14:42 — 16:51 AS918 Alaska Airlines Seattle — San Jose 1h 55m stop 18:46 — 21:29 AS3450 Alaska Airlines San Jose — Boise	5h 47m including layover	Find flight from$184
15:18 — 22:56	15:18 — 19:00 UA757 United Airlines Seattle — Denver 1h 45m stop 20:45 — 22:56 UA5923 United Airlines Denver — Boise	6h 38m including layover	Find flight from$141
19:55 — 23:59	19:52 — 20:46 AS958 Alaska Airlines Seattle — Portland 59m stop 21:47 — 23:57 AS3328 Alaska Airlines Portland — Boise	3h 4m including layover	Find flight from$168
19:58 — 09:31 +1 day	19:58 — 21:51 AS205 Alaska Airlines Seattle — Sacramento 9h 9m stop 07:00 — 09:31 AS2156 Alaska Airlines Sacramento — Boise	12h 33m including layover	Find flight from$169
20:10 — 16:59 +1 day	20:10 — 23:59 AS644 Alaska Airlines Seattle — Phoenix 14h 46m stop 14:45 — 16:59 AS3384 Alaska Airlines Phoenix — Boise	19h 49m including layover	Find flight from$187
21:21 — 10:58 +1 day	21:21 — 23:50 NK1456 Spirit Airlines Seattle — Las Vegas 8h 12m stop 08:02 — 10:58 NK980 Spirit Airlines Las Vegas — Boise	12h 37m including layover	Find flight from$87
05:15 — 16:38	05:15 — 08:00 NK1491 Spirit Airlines Seattle — Los Angeles 2h 49m stop 10:49 — 12:04 NK1724 Spirit Airlines Los Angeles — Las Vegas 1h 34m stop 13:38 — 16:38 G47 Allegiant Air Las Vegas — Boise	10h 23m including layover	Find flight from$154

Departure	Arrival	Flight Details	Flight Time	Price
		stop stop	including layover	Find flight from$

*Departure and arrival times - local. Updated on April 3, 2025

Flight Information

Below we will explain in detail what the flights cost on the destination from Seattle to Boise depends on and how to choose the most interesting flight option for you.

Distance between Seattle and Boise is 640 miles. Time difference between the cities is 1h. Airplanes depart 05:00 to 22:51 from 3 Seattle airports and arrive 05:00 to 22:51 to 1 Boise airport. Average flight time is 1h 22m.

The fastest flight 1h 18m
Average flight time 1h 22m
The earliest flight 05:00
The latest flight 22:51
Distance 398 ml

The cheapest months to travel to Boise are december (from 87 $), january (from 93 $), february (from 93 $).

The most expensive months are november (from 142 $), february (from 93 $), january (from 93 $).

What is the lowest airfare Seattle to Boise?

The cheapest plane ticket found by our users is $87. This airfare is for economy class on one-way NK1456 flight by Spirit Airlines for December 14, 2024 which leaves Seattle-Tacoma Intl in Seattle at 21:21 am and arrives at Boise Boise at 10:58.

Economy class

$87

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Business class

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First class

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Popular Airlines on the Route

The flight Seattle — Boise is served by 5 regular airlines and 2 low-cost airlines. Most of the flights on this route are operated by Alaska Airlines - 140 departures per week at the price of from $ 93 . And the most expensive tickets are offered by Aeromexico airline - from $ 1300.

Direct flights

There are 13 nonstop flights on the route. The fastest direct flight is AS2356 by Alaska Airlines takes 1h 18m and the cheapest is NK1456 by Spirit Airlines for $93.

AS - Alaska Airlines

from $93

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Connecting Flights

There are 178 flights with layovers on the route. The fastest connecting flight is AS2376 by Alaska Airlines takes 2h 31m and the cheapest is NK1456 by Spirit Airlines for $87.

AS - Alaska Airlines

from $105

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SY - Sun Country Airlines

from $388

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UA - United Airlines

from $140

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AM - Aeromexico

from $1300

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NK - Spirit Airlines

from $87

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Airports

You can fly from Seattle to Boise from 3 airports (Boeing Field International Airport, Seattle-Tacoma Intl, Kenmore Air Harbor SPB).

Seattle airports

Boeing Field International Airport-BFI

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Seattle-Tacoma Intl-SEA

from $87
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Kenmore Air Harbor SPB-LKE

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Boise airports

Boise-BOI

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Airplanes

There are flights to Boise from Seattle by 5 airlines that use 0 aircraft brands. They range from huge modern airplanes to small-sized.

Top Domestic Destinations from Seattle

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Top International Destinations from Seattle

Our state-of-the art metasearch will definitely provide you with the best airfare on international flights. We’re proud to partner with many reliable travel suppliers located outside the US what gives us an opportunity to offer the most competitive prices on far destinations.

Seattle — Tokyo

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from $64

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How to book a plane ticket yourself?

Fill in the search parameters — cities of departure and destination, departure and return dates and click «Find flights»
Select the best flight that you like. Please, check the airports of departure and arrival. Select the best fare, but pay attention to the following flight details - airports of departure and arrival, flight duration and layovers. Please use filters and sort to find the best flight.
Click «Buy» when you are ready — our system will redirect you to the site that sells the selected flight ticket.
Fill in all passenger and payment information — passport and contact information, please double check all passengers’ names and make a payment for your itinerary.
That's it — you will receive an email with your e-ticket usually within 10 minutes after your flight is confirmed. Please, print the e-ticket and have it with you at the airport. You would need to have only a passport and/or a required form of ID to travel. Please, check your Visa requirements if you travel outside of the United States or Canada.
To find a plane ticket, please select dates.