What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Boise round-trip?

Flying on Alaska Airlines is currently your cheapest option to Boise, with prices starting at $230. Additional round-trip tickets that might be worth considering are offered by Delta and United Airlines, with the lowest prices starting at $237 and $326, respectively. Users have found that Alaska Airlines is 47% cheaper than the other options available to this destination.

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Boise?

Currently, October is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Boise (average of $314). Flying from Washington, D.C. Dulles Intl Airport to Boise in June is currently the most expensive (average of $399). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest day to fly from Washington, D.C. Dulles Intl Airport to Boise?

Travelers seeking maximum savings on their Washington, D.C. Dulles Intl Airport to Boise flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Boise ranges from 0.2 - 1.6 inches per month. December is typically the wettest month, when rainfall can reach 1.6 in. August is typically the driest time to visit Boise when rainfall is around 0.2 in.

If weather is an important factor for your trip to Boise, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 75.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 30.2 F).

What are the most popular airlines that fly from Washington, D.C. Dulles Intl Airport to Boise?

Before booking your flight from Washington, D.C. Dulles Intl Airport to Boise check out the most popular airlines for this route: Alaska Airlines, Delta or United Airlines.

What is the cheapest day to fly round-trip from Washington, D.C. Dulles Intl Airport to Boise?

Flying to your destination on a Sunday can be more expensive, but this shouldn’t discourage you from finding affordable options to get to Boise. Check prices with Cheapflights to find a great deal for your trip.

How far in advance should I book a flight from Washington, D.C. Dulles Intl Airport to Boise?

To save up to 136% on this flight, we recommend booking at least 30 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Washington, D.C. Dulles Intl Airport to Boise from $229 1-2 weeks out and tickets from $435 for flights departing within the next 72 hours.

What is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to Boise?

Flights from Washington, D.C. Dulles Intl Airport to Boise lean towards being more expensive in December. Prices are generally better when you fly from Washington, D.C. Dulles Intl Airport to Boise in April, with the cheapest ticket starting at $212.

What airport do you fly into for flights to Boise from Washington, D.C. Dulles Intl?

Most people fly into Boise Air Term. Gowen Fld (BOI) if they book a flight to Boise from Washington, D.C. Dulles Intl. On average, Air Term. Gowen Fld has 0 inbound flights from Washington, D.C. Dulles Intl per day from 4 airlines. Boise Air Term. Gowen Fld is conveniently located just 3.3 mi from Boise’s city center.

Can I find deals for flights from Dulles Intl to Boise that include hotel bookings?

Yes. In addition to deals on Dulles Intl to Boise flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Dulles Intl to Boise?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Boise.

Can I find deals for business class flights from Dulles Intl to Boise?

Yes. Cheapflights offers flight deals from Dulles Intl to Boise by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$125+ Cheap Flights from Washington, D.C. Dulles Intl Airport to Boise

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Cheap flight deals from Dulles Intl to Boise

Round-trip from	$250 (Hawaiian Airlines)
One-way from	$125 (Hawaiian Airlines)
Popular in	December
Cheapest in	May
Average price	$418

From Washington, D.C. Dulles Intl to Boise Air Term. Gowen Fld

Search Deals

One-way flight from Washington, D.C. Dulles Intl to Boise Air Term. Gowen Fld

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Highest demand for flights based on searches. 18% potential increase in price ($100 potential increase over avg. RT price).

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Cheapest flight prices on average. 3% potential price decrease ($15 potential savings vs. average RT price).

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Average for round-trip flights in August 2025

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Find flight deals from Dulles Intl to Boise

Cheapest flights from Dulles Intl to Boise
Explore the most affordable flight options available from Dulles Intl to Boise. Find the lowest fares from popular airlines and budget airlines, with prices last updated on agosto 14, 2025.

mar. 9/239:00 amIAD - BOI

1 stop10h 18mHawaiian Airlines

mar. 9/302:28 pmBOI - IAD

1 stop7h 55mHawaiian Airlines

Deal found 8/14

$250

mar. 9/236:00 amIAD - BOI

2 stops10h 15mDelta

mar. 9/303:20 pmBOI - IAD

1 stop6h 18mDelta

Deal found 8/14

$256

sáb. 9/67:00 amIAD - BOI

1 stop8h 54mAlaska Airlines

mar. 9/97:17 pmBOI - IAD

1 stop10h 16mAlaska Airlines

Deal found 8/14

$264

sáb. 9/66:25 amIAD - BOI

1 stop8h 23mAmerican Airlines

mar. 9/91:38 pmBOI - IAD

1 stop7h 07mAmerican Airlines

Deal found 8/14

$265

mar. 9/307:00 amIAD - BOI

1 stop8h 48mAlaska Airlines

vie. 10/37:17 pmBOI - IAD

1 stop10h 16mAlaska Airlines

Deal found 8/12

$275

mar. 9/307:05 pmIAD - BOI

1 stop6h 54mDelta

jue. 10/27:45 pmBOI - IAD

1 stop8h 16mDelta

Deal found 8/12

$276

mar. 9/301:00 pmIAD - BOI

2 stops12h 57mDelta

vie. 10/37:45 pmBOI - IAD

1 stop8h 16mDelta

Deal found 8/12

$281

sáb. 10/46:25 amIAD - BOI

1 stop8h 45mAlaska Airlines

lun. 10/68:26 pmBOI - IAD

1 stop9h 07mAlaska Airlines

Deal found 8/12

$289

vie. 10/37:35 amIAD - BOI

1 stop10h 05mDelta

sáb. 10/45:25 amBOI - IAD

1 stop6h 05mDelta

Deal found 8/12

$290

vie. 10/37:00 amIAD - BOI

1 stop10h 54mAlaska Airlines

vie. 10/37:17 pmBOI - IAD

1 stop10h 16mAlaska Airlines

Deal found 8/12

$295

Best flights from Dulles Intl to Boise
Discover carefully curated flight deals from Dulles Intl to Boise that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated agosto 14, 2025.

mié. 10/297:43 amIAD - BOI

1 stop10h 34mHawaiian Airlines

mié. 11/57:01 amBOI - IAD

1 stop8h 12mHawaiian Airlines

Deal found 8/13

$250

mar. 9/96:09 pmIAD - BOI

1 stop7h 59mAlaska Airlines

mar. 9/167:17 pmBOI - IAD

1 stop10h 16mAlaska Airlines

Deal found 8/12

$250

mar. 9/307:05 pmIAD - BOI

1 stop6h 54mDelta

mar. 10/711:12 amBOI - IAD

2 stops10h 06mDelta

Deal found 8/12

$256

mié. 10/17:00 amIAD - BOI

1 stop8h 48mAlaska Airlines

mar. 10/71:35 pmBOI - IAD

1 stop8h 48mAlaska Airlines

Deal found 8/12

$250

mar. 9/237:00 amIAD - BOI

1 stop10h 54mHawaiian Airlines

mar. 9/308:46 pmBOI - IAD

1 stop8h 47mHawaiian Airlines

Deal found 8/12

$250

mar. 9/235:00 pmIAD - BOI

2 stops8h 59mDelta

mar. 9/303:20 pmBOI - IAD

1 stop6h 18mDelta

Deal found 8/12

$256

mar. 9/309:00 amIAD - BOI

1 stop10h 18mAlaska Airlines

mar. 10/71:35 pmBOI - IAD

1 stop8h 48mAlaska Airlines

Deal found 8/12

$250

mar. 9/29:00 amIAD - BOI

1 stop10h 18mHawaiian Airlines

mar. 9/97:17 pmBOI - IAD

1 stop10h 16mHawaiian Airlines

Deal found 8/12

$250

mar. 9/97:00 amIAD - BOI

1 stop10h 00mHawaiian Airlines

mar. 9/167:17 pmBOI - IAD

1 stop10h 16mHawaiian Airlines

Deal found 8/12

$250

Last-minute flights from Dulles Intl to Boise
Discover last-minute flight deals from Dulles Intl to Boise. Data last updated agosto 14, 2025 and is based on user searches.

mar. 8/199:30 amIAD - BOI

2 stops52h 08mFrontier

dom. 8/2412:33 pmBOI - IAD

2 stops18h 54mFrontier

Deal found 8/12

$423

jue. 8/218:19 pmIAD - BOI

2 stops17h 19mMultiple Airlines

mar. 8/267:00 amBOI - IAD

2 stops15h 20mMultiple Airlines

Deal found 8/12

$514

jue. 8/219:33 pmIAD - BOI

2 stops16h 05mFrontier

dom. 8/2412:33 pmBOI - IAD

2 stops15h 57mFrontier

Deal found 8/13

$525

vie. 8/228:00 amIAD - BOI

1 stop11h 11mMultiple Airlines

lun. 8/256:06 pmBOI - IAD

2 stops25h 33mMultiple Airlines

Deal found 8/11

$546

vie. 8/228:00 amIAD - BOI

1 stop11h 11mMultiple Airlines

mar. 8/268:46 pmBOI - IAD

1 stop8h 46mMultiple Airlines

Deal found 8/12

$612

sáb. 8/239:00 amIAD - BOI

1 stop8h 00mAlaska Airlines

mié. 9/102:28 pmBOI - IAD

1 stop7h 55mAlaska Airlines

Deal found 8/13

$509

sáb. 8/239:33 pmIAD - BOI

2 stops16h 05mMultiple Airlines

lun. 8/257:17 pmBOI - IAD

1 stop10h 15mMultiple Airlines

Deal found 8/12

$513

sáb. 8/239:33 pmIAD - BOI

2 stops16h 05mMultiple Airlines

mar. 8/262:28 pmBOI - IAD

1 stop7h 52mMultiple Airlines

Deal found 8/13

$605

jue. 9/46:09 pmIAD - BOI

1 stop7h 59mAlaska Airlines

mar. 9/97:17 pmBOI - IAD

1 stop10h 16mAlaska Airlines

Deal found 8/13

$304

sáb. 9/67:00 amIAD - BOI

1 stop8h 54mAlaska Airlines

mar. 9/97:17 pmBOI - IAD

1 stop10h 16mAlaska Airlines

Deal found 8/14

$264

sáb. 9/66:25 amIAD - BOI

1 stop8h 23mAmerican Airlines

mar. 9/91:38 pmBOI - IAD

1 stop7h 07mAmerican Airlines

Deal found 8/14

$265

jue. 9/117:00 amIAD - BOI

1 stop10h 00mAlaska Airlines

lun. 9/158:18 pmBOI - IAD

1 stop18h 34mAlaska Airlines

Deal found 8/14

$300

One-way flights from Dulles Intl to Boise
Search for one-way flight options from Dulles Intl to Boise. Find affordable one-way fares based on user searches. Data last updated agosto 14, 2025.

mar. 9/29:00 amIAD - BOI

1 stop10h 18mHawaiian Airlines

Deal found 8/12

$125

mié. 10/157:35 amIAD - BOI

1 stop10h 31mDelta

Deal found 8/13

$126

mié. 10/226:05 amIAD - BOI

2 stops9h 57mDelta

Deal found 8/11

$131

sáb. 10/187:35 amIAD - BOI

1 stop10h 31mDelta

Deal found 8/12

$140

jue. 9/116:09 pmIAD - BOI

1 stop7h 59mAlaska Airlines

Deal found 8/11

$150

jue. 10/167:35 amIAD - BOI

1 stop10h 31mDelta

Deal found 8/12

$151

vie. 10/104:45 pmIAD - BOI

2 stops44h 58mFrontier

Deal found 8/13

$155

mié. 10/159:00 amIAD - BOI

2 stops28h 43mFrontier

Deal found 8/13

$158

mié. 9/39:30 amIAD - BOI

2 stops29h 51mMultiple Airlines

Deal found 8/14

$163

mar. 9/29:30 amIAD - BOI

2 stops52h 07mFrontier

Deal found 8/12

$174

dom. 10/267:43 amIAD - BOI

1 stop9h 29mHawaiian Airlines

Deal found 8/12

$179

vie. 10/177:45 pmIAD - BOI

1 stop6h 35mSouthwest

Deal found 8/14

$180

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Boise that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Boise

IAD - BOI

IADBOI

Washington, D.C. Dulles Intl

mié. 10/29

7:43 am-4:17 pm

1 stop10h 34m

Boise Air Term. Gowen Fld

mié. 11/5

7:01 am-5:13 pm

1 stop8h 12m

$250

Washington, D.C.Boise

IAD - BOI

IADBOI

Washington, D.C. Dulles Intl

mar. 9/9

6:09 pm-12:08 am

1 stop7h 59m

Boise Air Term. Gowen Fld

mar. 9/16

7:17 pm-7:33 am

1 stop10h 16m

$250

Washington, D.C.Boise

IAD - BOI

IADBOI

Washington, D.C. Dulles Intl

mié. 10/1

7:00 am-1:48 pm

1 stop8h 48m

Boise Air Term. Gowen Fld

mar. 10/7

1:35 pm-12:23 am

1 stop8h 48m

$250

Washington, D.C.Boise

IAD - BOI

IADBOI

Washington, D.C. Dulles Intl

mar. 9/23

7:00 am-3:54 pm

1 stop10h 54m

Boise Air Term. Gowen Fld

mar. 9/30

8:46 pm-7:33 am

1 stop8h 47m

$250

Washington, D.C.Boise

IAD - BOI

IADBOI

Washington, D.C. Dulles Intl

mar. 9/30

9:00 am-5:18 pm

1 stop10h 18m

Boise Air Term. Gowen Fld

mar. 10/7

1:35 pm-12:23 am

1 stop8h 48m

$250

Washington, D.C.Boise

IAD - BOI

IADBOI

Washington, D.C. Dulles Intl

mar. 9/2

9:00 am-5:18 pm

1 stop10h 18m

Boise Air Term. Gowen Fld

mar. 9/9

7:17 pm-7:33 am

1 stop10h 16m

$250

Washington, D.C.Boise

IAD - BOI

IADBOI

Washington, D.C. Dulles Intl

mar. 9/9

7:00 am-3:00 pm

1 stop10h 00m

Boise Air Term. Gowen Fld

mar. 9/16

7:17 pm-7:33 am

1 stop10h 16m

$250

Washington, D.C.Boise

IAD - BOI

IADBOI

Washington, D.C. Dulles Intl

mar. 9/30

7:05 pm-11:59 pm

1 stop6h 54m

Boise Air Term. Gowen Fld

mar. 10/7

11:12 am-11:18 pm

2 stops10h 06m

$256

Washington, D.C.Boise

IAD - BOI

IADBOI

Washington, D.C. Dulles Intl

mar. 9/23

5:00 pm-11:59 pm

2 stops8h 59m

Boise Air Term. Gowen Fld

mar. 9/30

3:20 pm-11:38 pm

1 stop6h 18m

$256

Washington, D.C.Boise

IAD - BOI

IADBOI

Washington, D.C. Dulles Intl

mar. 9/2

9:00 am-5:18 pm

1 stop10h 18m

$125

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/12

Showing 1-10 of 20 results

Best time to book a flight from Dulles Intl to Boise

Have a flexible travel schedule? Discover the best time to fly to Boise from Dulles Intl with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to Boise

What is the cheapest time of day to fly from IAD to BOI?

A simple way to save on the total cost of your ticket is to fly from Washington, D.C. Dulles Intl Airport to Boise at noon. If you’re flexible enough to do this you can expect to save up to 36% on your trip compared to booking a flight in the evening.

Reviews of airlines servicing Boise

Get a feel of what it's like to fly with Alaska Airlines, Southwest, and Delta from Washington, D.C. Dulles Intl Airport to Boise by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)

Alaska Airlines

8.0

Very good

10,000 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)

Southwest

8.0

Very good

4,244 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)

Delta

8.0

Very good

7,980 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)

United Airlines

7.4

Good

8,916 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)

Related info for your journey

What airport do you fly into for flights to Boise from Washington, D.C. Dulles Intl?
Most people fly into Boise Air Term. Gowen Fld (BOI) if they book a flight to Boise from Washington, D.C. Dulles Intl. On average, Air Term. Gowen Fld has 0 inbound flights from Washington, D.C. Dulles Intl per day from 4 airlines. Boise Air Term. Gowen Fld is conveniently located just 3.3 mi from Boise’s city center.
What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Boise round-trip?
Flying on Alaska Airlines is currently your cheapest option to Boise, with prices starting at $230. Additional round-trip tickets that might be worth considering are offered by Delta and United Airlines, with the lowest prices starting at $237 and $326, respectively. Users have found that Alaska Airlines is 47% cheaper than the other options available to this destination.
Can I find deals for flights from Dulles Intl to Boise that include hotel bookings?
Yes. In addition to deals on Dulles Intl to Boise flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Dulles Intl to Boise?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Boise.
Can I find deals for business class flights from Dulles Intl to Boise?
Yes. Cheapflights offers flight deals from Dulles Intl to Boise by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Boise?
Currently, October is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Boise (average of $314). Flying from Washington, D.C. Dulles Intl Airport to Boise in June is currently the most expensive (average of $399). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Other flights to Boise

Top 4 airlines flying from Dulles Intl to Boise

Airline	Cheapest	Average	Flexibility	On-time
Alaska Airlines	Cheapest$230	Average$485	FlexibilityNo cancel fee	On-time75%
Delta	Cheapest$237	Average$425	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$326	Average$496	FlexibilityNo cancel fee	On-time69%
Southwest	Cheapest$389	Average$537	FlexibilityNo cancel fee	On-time63%

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$125+ Cheap flights from Dulles Intl (IAD) to Boise (BOI)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/2. Fares are subject to change and may not be available on all flights or dates of travel.

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Find flight deals from Dulles Intl to Boise

Cheapest flights from Dulles Intl to BoiseExplore the most affordable flight options available from Dulles Intl to Boise. Find the lowest fares from popular airlines and budget airlines, with prices last updated on agosto 14, 2025.

Explore the most affordable flight options available from Dulles Intl to Boise. Find the lowest fares from popular airlines and budget airlines, with prices last updated on agosto 14, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Boise that are best for you.

Best time to book a flight from Dulles Intl to Boise

Have a flexible travel schedule? Discover the best time to fly to Boise from Dulles Intl with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to Boise

What is the cheapest time of day to fly from IAD to BOI?

Find hourly flight availability from Dulles Intl to Boise. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated agosto 14, 2025.

Reviews of airlines servicing Boise

Get insights into the airlines that provide service to Boise. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Boise. Reviews last updated agosto 14, 2025.

Get a feel of what it's like to fly with Alaska Airlines, Southwest, and Delta from Washington, D.C. Dulles Intl Airport to Boise by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Boise. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly into for flights to Boise from Washington, D.C. Dulles Intl?

What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Boise round-trip?

Can I find deals for flights from Dulles Intl to Boise that include hotel bookings?

How can I find direct flights from Dulles Intl to Boise?

Can I find deals for business class flights from Dulles Intl to Boise?

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Boise?

Traveling to a place near Boise?

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Alternative routes for Dulles Intl to Boise

See prices for flight routes from nearby airports that may be better suited for you.

Top 4 airlines flying from Dulles Intl to Boise

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Cheapest flights from Dulles Intl to Boise
Explore the most affordable flight options available from Dulles Intl to Boise. Find the lowest fares from popular airlines and budget airlines, with prices last updated on agosto 14, 2025.