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Find cheap Southwest flights to Boise

RDU — BOI
ago. 26 — sep. 21
mié. 8/26
mié. 9/2
1 adult, Economy
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Find Southwest flight deals to Boise

Cheapest Southwest flights from USA to Boise
Explore the most affordable Southwest flight options available from USA to Boise. Find the lowest fares with prices last updated on julio 27, 2026.

This Southwest deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/157:30 pm
DEN
-
BOI
Nonstop2h 00m
Southwest
mar. 8/188:20 am
BOI
-
DEN
Nonstop1h 50m
Southwest
Deal found 7/25$197
This Southwest deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 8/257:15 am
ONT
-
BOI
1 stop5h 35m
Southwest
jue. 8/279:05 am
BOI
-
ONT
1 stop3h 45m
Southwest
Deal found 7/24$202
This Southwest deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/199:15 pm
DEN
-
BOI
Nonstop1h 55m
Southwest
mié. 8/2611:30 am
BOI
-
DEN
1 stop5h 25m
Southwest
Deal found 7/23$207

Flights to Boise with Southwest at a glance

Find detailed information about Southwest flights from USA to Boise. Explore the options provided by Southwest to plan your journey from USA to Boise. Data last updated julio 27, 2026.

Popular in

March

Cheapest in

February

Average price

$341

Round-trip from

$197

One-way from

$99

Good one-way deal

$274 or less
Highest demand for flights to Boise with Southwest; 3% potential price increase.
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Best time to find cheap flights to Boise with Southwest; 1% potential price drop.
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Average price for flights to Boise with Southwest (round-trip).
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Southwest
  • Southwest
  • 8/15-8/18
  • Nonstop
  • 3h 50m total
  • USA to Boise
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Southwest
  • Southwest
  • 8/15
  • Nonstop
  • 1h 55m total
  • USA to Boise
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Price to beat on a one-way flight from the United States to Boise with Southwest.
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Cheapflights Insights

Find cheap Southwest flights to Boise

How long is the flight to Boise with Southwest?

On average, Southwest flights from the United States to Boise take 2 hours 57 minutes. Flights to Boise from other popular cities in the United States will vary in length. Below are a few examples of popular routes and their flight times.

Southwest weekly flight availability to Boise

The most flights to Boise operated by Southwest are scheduled on a Monday (17 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (13 on average).

When is the best time to book a flight to Boise with Southwest?

The best time to book a flight to Boise with Southwest is 81 days before departure. On average, fares are higher if you book 1 day before departure.

When is the cheapest time to fly to Boise with Southwest?

Users looking for the cheapest Southwest fares to Boise should consider flying on Tuesday at noon, when prices are typically cheapest. Budget-minded travellers will want to avoid Tuesday evenings, when prices are usually at their highest.

FAQs about flights to Boise with Southwest

  • Which airport do Southwest flights arrive at when travelling to Boise?

    Southwest flights on this route tend to land at Boise Air Term. Gowen Fld Airport.

  • Is Southwest the cheapest airline for a flight to Boise?

    Flight prices will depend on many factors like date, time and cabin class so it is worth comparing flights before booking. Based on Cheapflights data the cheapest average return price for flights to Boise tends to be with Frontier.

  • Are there alternative airlines other than Southwest that fly to Boise?

    Alaska Airlines, Delta and United Airlines all fly to Boise and offer an alternative to Southwest.

  • How much is a flight to Boise with Southwest?

    The average price for a return flight with Southwest is $456; with a one-way flight around $270.

See more FAQs

Reviews of Southwest

See what Cheapflights users have to say about their Southwest experience.
Southwest
8.0
Very good
4,229 reviews
Overview

Food

7.0

Crew

8.6

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Popular Southwest flights

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