$125+ Cheap flights from Idaho

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 11/2. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
BOI — PHL
7 Feb — 14 Feb1
1 adult
1 adult, Economy, 0 bags

What to know about flights from Idaho

Discover essential information about flights departing from Idaho, including flight schedules, destinations, airlines operating at the Idaho airport, and any specific guidelines or requirements for travellers. Please note that the information is based on the most recent updates available. Data last updated 8 January 2026.

Good round-trip deal

$2,501 or less
Price to beat on a round-trip flight from Idaho.
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Find flights from Idaho

Enter your travel dates to find the best prices.

Cheapest flights from Idaho
Explore the most affordable flight options available from Idaho. Find the lowest fares based on data from user searches, with prices last updated on 8 January 2026.

Wed 4/207:25BOI - AUS
1 stop7h 35mDelta
Wed 11/213:59AUS - BOI
1 stop9h 19mDelta
Deal found 7/1$248
Tue 5/507:05BOI - AUS
2 stops7h 40mSouthwest
Tue 12/518:05AUS - BOI
1 stop6h 15mSouthwest
Deal found 7/1$255
Tue 14/416:05BOI - AUS
1 stop5h 00mSouthwest
Mon 20/418:25AUS - BOI
1 stop6h 05mSouthwest
Deal found 7/1$272
Tue 21/414:08GEG - LGA
1 stop6h 34mDelta
Tue 28/407:55LGA - GEG
1 stop8h 08mDelta
Deal found 6/1$292
Thu 23/423:36BOI - AUS
1 stop9h 19mDelta
Thu 30/416:42AUS - BOI
1 stop7h 17mDelta
Deal found 6/1$295
Mon 2/306:45GEG - LGA
1 stop7h 44mDelta
Thu 5/306:00LGA - GEG
1 stop10h 08mDelta
Deal found 8/1$295
Thu 29/106:30GEG - LGA
1 stop7h 59mDelta
Wed 4/216:00LGA - GEG
2 stops10h 50mDelta
Deal found 7/1$301
Wed 28/109:02BOI - AUS
1 stop7h 57mAlaska Airlines
Sat 31/106:00AUS - BOI
2 stops17h 09mAlaska Airlines
Deal found 6/1$324
Thu 29/110:00BOI - AUS
1 stop6h 59mAlaska Airlines
Mon 2/215:39AUS - BOI
1 stop23h 06mAlaska Airlines
Deal found 5/1$327
Fri 30/106:40BOI - AUS
1 stop7h 20mSouthwest
Tue 3/208:50AUS - BOI
2 stops9h 00mSouthwest
Deal found 5/1$334
Fri 30/113:55BOI - AUS
1 stop9h 04mAlaska Airlines
Tue 3/206:00AUS - BOI
2 stops13h 22mAlaska Airlines
Deal found 6/1$337
Wed 28/116:04BOI - AUS
1 stop23h 35mAlaska Airlines
Sun 1/219:59AUS - BOI
2 stops16h 49mAlaska Airlines
Deal found 7/1$338

Find flights from Idaho within your budget

 
Find flights departing from Idaho that match your specified budget. Filter results by price range, allowing you to narrow down options and find flights that fit within your financial constraints. Please note that the search results are based on data from user searches, with fares last updated on 8 January 2026. In the last 7 days, Cheapflights users made a total of 647,157 searches

Fly to

Philadelphia

Route

Depart

Return

Price

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Wed 4/2

07:25-16:00

1 stop7h 35m

Austin Bergstrom

Wed 11/2

13:59-22:18

1 stop9h 19m

$248

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Tue 7/4

05:50-13:30

1 stop6h 40m

Austin Bergstrom

Tue 7/4

18:51-23:59

1 stop6h 08m

$248

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Tue 5/5

07:05-15:45

2 stops7h 40m

Austin Bergstrom

Tue 12/5

18:05-23:20

1 stop6h 15m

$255

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Tue 14/4

16:05-22:05

1 stop5h 00m

Austin Bergstrom

Mon 20/4

18:25-23:30

1 stop6h 05m

$272

SpokaneNew York

GEG - LGA

GEGLGA

Spokane

Tue 21/4

14:08-23:42

1 stop6h 34m

New York LaGuardia

Tue 28/4

07:55-13:03

1 stop8h 08m

$292

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Thu 29/1

09:02-17:59

1 stop7h 57m

Austin Bergstrom

Mon 2/2

17:39-23:58

1 stop7h 19m

$295

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Thu 23/4

23:36-09:55

1 stop9h 19m

Austin Bergstrom

Thu 30/4

16:42-22:59

1 stop7h 17m

$295

SpokaneNew York

GEG - LGA

GEGLGA

Spokane

Mon 2/3

06:45-17:29

1 stop7h 44m

New York LaGuardia

Thu 5/3

06:00-13:08

1 stop10h 08m

$295

SpokaneNew York

GEG - LGA

GEGLGA

Spokane

Mon 23/3

22:40-09:42

1 stop8h 02m

New York LaGuardia

Thu 26/3

13:45-19:59

2 stops9h 14m

$303

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Wed 4/2

08:10-22:48

2 stops13h 38m

Austin Bergstrom

Wed 11/2

07:15-15:10

1 stop8h 55m

$324

Flights are sorted by cheapest return flights first.

Deals found on 6/1

Showing 1-10 of 55 results
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Best time to book a flight from Idaho

Have a flexible travel schedule? Discover the best time to fly from Idaho with our price prediction graph.
Estimated return 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.

Travel insights for flights from Idaho

Get recent, data-driven insights about flights from Idaho including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Idaho?

Currently, December is the cheapest month in which you can book a flight from Idaho (average of $151). Flying from Idaho in January will prove the most costly (average of $433). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

What is the cheapest place to fly to from Idaho?

The cheapest city to fly to from Idaho is Salt Lake City, with prices starting at $2,453. Explore other affordable destinations below.

Salt Lake City
Salt Lake City
From $2,453

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Direct flights from USA

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Direct flights from Boise

Related info for your journey

Access useful and relevant information related to your journey from Idaho. This can include details such as airport transportation, visa requirements, travel insurance, luggage regulations, and any other information that can ensure a smooth and hassle-free travel experience. Please note that the information is based on general guidance and may need to be verified with official sources. Data last updated 8 January 2026.

  • What is the cheapest month to fly from Idaho?

    Currently, the cheapest month for flights from Idaho is December. The most expensive month for flights is January. The cheapest prices are shown above but prices will vary according to departure times, airlines, class and how early you book.

  • How does Cheapflights help users find flights from Idaho?

    Cheapflights helps you search for flights from Idaho via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

  • Why should you use Cheapflights to find cheap flight tickets from Idaho?

    It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Idaho.

  • Can Cheapflights find flights from Idaho with no change fees?

    Cheapflights does show flights with no change fees to all users. To see these options for flights from Idaho, users can toggle the no change fees filter when performing a flight search.

  • Can Cheapflights notify me if prices for flights from Idaho become cheaper?

    Yes, Cheapflights has a feature called Price Alerts, which offers users the ability to be notified when flight prices change. Track prices for your flight from Idaho today and book when you’re ready!

See more FAQs

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Idaho?

Cheapflights helps you search for flights from Idaho via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Idaho?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Idaho.

Can Cheapflights find flights from Idaho with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Idaho, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Idaho become cheaper?

Yes, Cheapflights has a feature called Price Alerts, which offers users the ability to be notified when flight prices change. Track prices for your flight from Idaho today and book when you’re ready!

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