Cheap Flights from Seattle, WA to Boise, ID from $51

Return flight: Boise – Seattle

On Cheapflightsplus.com you will find 50 direct and 200 connecting flights from Seattle to Boise. You can compare airfare deals from 6 airlines and multiple travel sites from $51, 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: $51 (one-way), $87 (round-trip).
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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 Arrival Flight Details Flight Duration Price
07:00 — 09:28
07:00 — 09:28 HA6490 Hawaiian Airlines
Seattle — Boise
1h 28m
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from$51
07:00 — 09:28
07:00 — 09:28 AS3278 Alaska Airlines
Seattle — Boise
1h 28m
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from$55
08:03 — 10:35
08:03 — 10:35 HA4995 Hawaiian Airlines
Seattle — Boise
1h 32m
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from$75
08:03 — 10:35
08:03 — 10:35 AS2142 Alaska Airlines
Seattle — Boise
1h 32m
Find flight
from$79
08:17 — 10:45
08:17 — 10:45 AS2138 Alaska Airlines
Seattle — Boise
1h 28m
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from$78
08:25 — 10:46
08:25 — 10:46 HA6617 Hawaiian Airlines
Seattle — Boise
1h 21m
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from$91
08:25 — 10:46
08:25 — 10:46 AS2139 Alaska Airlines
Seattle — Boise
1h 21m
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from$94
08:45 — 11:09
08:45 — 11:09 HA6483 Hawaiian Airlines
Seattle — Boise
1h 24m
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from$51
08:45 — 11:09
08:45 — 11:09 AS2262 Alaska Airlines
Seattle — Boise
1h 24m
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from$54
09:50 — 12:20
09:50 — 12:20 HA6668 Hawaiian Airlines
Seattle — Boise
1h 30m
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from$75
09:50 — 12:20
09:50 — 12:20 AS3440 Alaska Airlines
Seattle — Boise
1h 30m
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from$78
09:51 — 12:22
09:51 — 12:22 HA6537 Hawaiian Airlines
Seattle — Boise
1h 31m
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from$107
09:51 — 12:22
09:51 — 12:22 AS3484 Alaska Airlines
Seattle — Boise
1h 31m
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from$110
10:26 — 13:01
10:26 — 13:01 HA6485 Hawaiian Airlines
Seattle — Boise
1h 35m
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from$51
10:26 — 13:01
10:26 — 13:01 AS3307 Alaska Airlines
Seattle — Boise
1h 35m
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from$54
11:20 — 13:48
11:20 — 13:48 HA6488 Hawaiian Airlines
Seattle — Boise
1h 28m
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from$92
11:20 — 13:48
11:20 — 13:48 AS2039 Alaska Airlines
Seattle — Boise
1h 28m
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from$95
11:25 — 13:55
11:25 — 13:55 HA6663 Hawaiian Airlines
Seattle — Boise
1h 30m
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from$75
11:25 — 13:55
11:25 — 13:55 AS3321 Alaska Airlines
Seattle — Boise
1h 30m
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from$78
12:31 — 15:04
12:31 — 15:04 HA6616 Hawaiian Airlines
Seattle — Boise
1h 33m
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from$60
12:37 — 15:06
12:37 — 15:06 HA6415 Hawaiian Airlines
Seattle — Boise
1h 29m
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from$75
12:37 — 15:06
12:37 — 15:06 AS1018 Alaska Airlines
Seattle — Boise
1h 29m
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from$78
13:21 — 15:45
13:21 — 15:45 HA6482 Hawaiian Airlines
Seattle — Boise
1h 24m
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from$91
13:21 — 15:45
13:21 — 15:45 AS2012 Alaska Airlines
Seattle — Boise
1h 24m
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from$93
13:37 — 15:55
13:37 — 15:55 HA6538 Hawaiian Airlines
Seattle — Boise
1h 18m
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from$107
13:42 — 16:10
13:42 — 16:10 HA6660 Hawaiian Airlines
Seattle — Boise
1h 28m
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from$60
13:42 — 16:10
13:42 — 16:10 AS3002 Alaska Airlines
Seattle — Boise
1h 28m
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from$63
14:25 — 16:54
14:25 — 16:54 HA6433 Hawaiian Airlines
Seattle — Boise
1h 29m
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from$75
14:48 — 17:17
14:48 — 17:17 HA6523 Hawaiian Airlines
Seattle — Boise
1h 29m
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from$163
14:51 — 17:18
14:51 — 17:18 HA6492 Hawaiian Airlines
Seattle — Boise
1h 27m
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from$51
14:51 — 17:18
14:51 — 17:18 AS3335 Alaska Airlines
Seattle — Boise
1h 27m
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from$55
14:51 — 17:18
14:51 — 17:18 HA6664 Hawaiian Airlines
Seattle — Boise
1h 27m
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from$60
15:45 — 18:10
15:45 — 18:10 AS2326 Alaska Airlines
Seattle — Boise
1h 25m
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from$54
15:45 — 18:04
15:45 — 18:04 HA6622 Hawaiian Airlines
Seattle — Boise
1h 19m
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from$107
17:40 — 20:12
17:40 — 20:12 AS3316 Alaska Airlines
Seattle — Boise
1h 32m
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from$54
17:40 — 20:06
17:40 — 20:06 HA4837 Hawaiian Airlines
Seattle — Boise
1h 26m
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from$75
17:40 — 20:06
17:40 — 20:06 AS3305 Alaska Airlines
Seattle — Boise
1h 26m
Find flight
from$78
18:57 — 21:16
18:57 — 21:16 HA6908 Hawaiian Airlines
Seattle — Boise
1h 19m
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from$91
18:57 — 21:16
18:57 — 21:16 AS2204 Alaska Airlines
Seattle — Boise
1h 19m
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from$94
20:15 — 22:42
20:15 — 22:42 HA6615 Hawaiian Airlines
Seattle — Boise
1h 27m
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from$75
20:15 — 22:42
20:15 — 22:42 AS1034 Alaska Airlines
Seattle — Boise
1h 27m
Find flight
from$78
20:30 — 22:58
20:30 — 22:58 HA6648 Hawaiian Airlines
Seattle — Boise
1h 28m
Find flight
from$92
21:25 — 23:45
21:25 — 23:45 HA6623 Hawaiian Airlines
Seattle — Boise
1h 20m
Find flight
from$75
21:25 — 23:45
21:25 — 23:45 AS2112 Alaska Airlines
Seattle — Boise
1h 20m
Find flight
from$78
21:30 — 23:56
21:30 — 23:56 AS2365 Alaska Airlines
Seattle — Boise
1h 26m
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from$54
05:20 — 09:20
05:20 — 06:17 AS3204 Alaska Airlines
Seattle — Portland
45m stop
07:02 — 09:20 AS2430 Alaska Airlines
Portland — Boise
3h
including layover
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from$86
06:25 — 11:46
+1 day
06:25 — 10:16 F93406 Frontier Airlines
Seattle — Denver
23h 36m stop
09:54 — 11:51 F93933 Frontier Airlines
Denver — Boise
28h 21m
including layover
Find flight
from$77
06:45 — 13:30
06:45 — 09:29 UA1681 United Airlines
Seattle — Los Angeles
46m stop
10:15 — 13:30 UA4682 United Airlines
Los Angeles — Boise
5h 45m
including layover
Find flight
from$94
15:00 — 11:51
+1 day
15:00 — 18:54 F94546 Frontier Airlines
Seattle — Denver
15h stop
09:54 — 11:51 F93933 Frontier Airlines
Denver — Boise
19h 51m
including layover
Find flight
from$84
19:48 — 11:46
+1 day
19:48 — 23:41 F91176 Frontier Airlines
Seattle — Denver
10h 10m stop
09:50 — 11:47 F93933 Frontier Airlines
Denver — Boise
14h 58m
including layover
Find flight
from$84
*Departure and arrival times - local. Updated on May 23, 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 05:20 to 23:59 from 3 Seattle airports and arrive 05:20 to 23:59 to 1 Boise airport. Average flight time is 1h 28m.

  • The fastest flight 1h 18m
  • Average flight time 1h 28m
  • The earliest flight 05:20
  • The latest flight 23:59
  • Distance 398 ml

The cheapest months to travel to Boise are october (from 69 $), august (from 69 $), september (from 80 $).

The most expensive months are november (from 190 $), december (from 152 $), february (from 141 $).

What is the lowest airfare Seattle to Boise?

The cheapest plane ticket found by our users is $51. This airfare is for economy class on one-way HA6483 flight by Hawaiian Airlines for October 7, 2025 which leaves Seattle-Tacoma Intl in Seattle at 08:45 am and arrives at Boise Boise at 11:09.

Economy class
$51
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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 6 regular airlines and 3 low-cost airlines. Most of the flights on this route are operated by Alaska Airlines - 99 departures per week at the price of from $ 54 . And the most expensive tickets are offered by United Airlines airline - from $ 741.

Direct flights

There are 50 nonstop flights on the route. The fastest direct flight is HA6538 by Hawaiian Airlines takes 1h 18m and the cheapest is HA6483 by Hawaiian Airlines for $51.

  • AS - Alaska Airlines
    from $54
    Find
  • HA - Hawaiian Airlines
    from $51
    Find
See more direct flights

Connecting Flights

There are 200 flights with layovers on the route. The fastest connecting flight is HA6698 by Hawaiian Airlines takes 2h 43m and the cheapest is HA6483 by Hawaiian Airlines for $77.

  • AS - Alaska Airlines
    from $86
    Find
  • F9 - Frontier Airlines
    from $77
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  • SY - Sun Country Airlines
    from $156
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  • HA - Hawaiian Airlines
    from $94
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  • UA - United Airlines
    from $94
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  • NK - Spirit Airlines
    from $120
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See more connecting flights

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 $51
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  • Kenmore Air Harbor SPB-LKE
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Boise airports

  • Boise-BOI
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How to book a plane ticket yourself?

How to book an air 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.

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