$164+ Cheap flights from Idaho

This is the cheapest return flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/1. 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
22 Jan — 29 Jan1
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 23 December 2025.

Good round-trip deal

$2,537 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 23 December 2025.

Wed 21/106:23BOI - AUS
1 stop8h 31mAlaska Airlines
Sat 24/107:15AUS - BOI
1 stop8h 55mAlaska Airlines
Deal found 21/12$325
Mon 19/105:20BOI - AUS
1 stop6h 42mDelta
Mon 26/106:15AUS - BOI
1 stop8h 19mDelta
Deal found 22/12$327
Tue 13/106:30GEG - LGA
1 stop7h 59mDelta
Fri 16/106:00LGA - GEG
1 stop10h 03mDelta
Deal found 22/12$327
Mon 19/117:16BOI - AUS
1 stop5h 40mUnited Airlines
Tue 27/112:27AUS - BOI
2 stops10h 25mUnited Airlines
Deal found 22/12$334
Tue 13/106:30GEG - LGA
1 stop7h 59mDelta
Thu 22/106:00LGA - GEG
2 stops10h 03mDelta
Deal found 22/12$334
Tue 3/213:55BOI - AUS
1 stop27h 04mAlaska Airlines
Sun 8/207:15AUS - BOI
1 stop16h 46mAlaska Airlines
Deal found 21/12$340
Sun 1/207:25BOI - AUS
1 stop7h 35mDelta
Mon 2/306:10AUS - BOI
1 stop8h 01mDelta
Deal found 22/12$342
Sat 17/105:40BOI - AUS
1 stop9h 20mDelta
Tue 3/207:35AUS - BOI
2 stops11h 53mDelta
Deal found 22/12$349
Sat 17/106:23BOI - AUS
1 stop8h 31mAlaska Airlines
Tue 3/207:15AUS - BOI
1 stop8h 55mAlaska Airlines
Deal found 22/12$354
Sun 15/206:28BOI - AUS
1 stop7h 07mAlaska Airlines
Fri 20/219:00AUS - BOI
1 stop24h 22mAlaska Airlines
Deal found 22/12$370
Fri 30/112:55GEG - LGA
1 stop7h 47mDelta
Sun 1/206:00LGA - GEG
1 stop10h 03mDelta
Deal found 22/12$403
Mon 26/119:25GEG - EWR
2 stops11h 09mDelta
Sat 31/107:00EWR - GEG
2 stops11h 00mDelta
Deal found 22/12$446

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 23 December 2025. 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 21/1

09:02-17:59

1 stop7h 57m

Austin Bergstrom

Sat 24/1

07:15-15:10

1 stop8h 55m

$325

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Tue 20/1

06:23-15:54

1 stop8h 31m

Austin Bergstrom

Tue 27/1

07:15-15:10

1 stop8h 55m

$325

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Mon 19/1

05:20-13:02

1 stop6h 42m

Austin Bergstrom

Mon 26/1

06:15-13:34

1 stop8h 19m

$327

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Mon 19/1

17:16-23:56

1 stop5h 40m

Austin Bergstrom

Tue 27/1

08:50-13:35

1 stop5h 45m

$327

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Mon 19/1

17:16-23:56

1 stop5h 40m

Austin Bergstrom

Mon 26/1

15:10-23:48

1 stop9h 38m

$327

SpokaneNew York

GEG - LGA

GEGLGA

Spokane

Wed 14/1

06:30-17:29

1 stop7h 59m

New York LaGuardia

Thu 22/1

07:55-13:03

1 stop8h 08m

$327

SpokaneNew York

GEG - LGA

GEGLGA

Spokane

Thu 22/1

14:00-23:39

1 stop6h 39m

New York LaGuardia

Sun 25/1

07:55-13:03

1 stop8h 08m

$327

SpokaneNew York

GEG - LGA

GEGLGA

Spokane

Tue 20/1

14:00-23:39

1 stop6h 39m

New York LaGuardia

Tue 27/1

06:00-11:45

1 stop8h 45m

$327

SpokaneNew York

GEG - LGA

GEGLGA

Spokane

Tue 13/1

06:30-17:29

1 stop7h 59m

New York LaGuardia

Fri 16/1

06:00-13:03

1 stop10h 03m

$327

SpokaneNew York

GEG - LGA

GEGLGA

Spokane

Tue 13/1

06:30-17:29

1 stop7h 59m

New York LaGuardia

Thu 22/1

07:55-13:03

1 stop8h 08m

$327

Flights are sorted by cheapest return flights first.

Deals found on 21/12

Showing 1-10 of 60 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, September is the cheapest month in which you can book a flight from Idaho (average of $173). Flying from Idaho in March will prove the most costly (average of $413). 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 $2,489. Explore other affordable destinations below.

Salt Lake City
Salt Lake City
From $2,489

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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 23 December 2025.

  • What is the cheapest month to fly from Idaho?

    Currently, the cheapest month for flights from Idaho is September. The most expensive month for flights is March. 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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