$157+ 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 10/11. 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
18 Oct — 25 Oct1
1 adult
1 adult, Economy

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 18 September 2025.

Good round-trip deal

$2,526 or less

Good one-way deal

$131 or less
Price to beat on a round-trip flight from Idaho.
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Price to beat on a one-way flight from Idaho.
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Find flights from Idaho

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 18 September 2025.

Sat 13/1208:45BOI - AUS
1 stop7h 19mDelta
Sun 18/106:30AUS - BOI
1 stop8h 39mDelta
Deal found 16/9$313
Mon 27/1014:11BOI - AUS
1 stop6h 42mUnited Airlines
Wed 29/1005:30AUS - BOI
2 stops8h 59mUnited Airlines
Deal found 16/9$349
Sat 11/1016:46BOI - AUS
1 stop19h 48mDelta
Tue 14/1007:20AUS - BOI
1 stop8h 45mDelta
Deal found 16/9$364
Mon 12/107:30BOI - AUS
2 stops14h 18mDelta
Wed 21/106:30AUS - BOI
1 stop8h 39mDelta
Deal found 16/9$372
Tue 21/1005:05GEG - EWR
1 stop10h 49mAlaska Airlines
Tue 28/1007:05EWR - GEG
1 stop9h 40mAlaska Airlines
Deal found 15/9$387
Tue 3/314:05GEG - EWR
1 stop6h 32mDelta
Wed 4/306:00EWR - GEG
1 stop10h 14mDelta
Deal found 14/9$388
Wed 22/1012:51GEG - LGA
1 stop7h 50mDelta
Wed 29/1006:00LGA - GEG
1 stop8h 41mDelta
Deal found 15/9$388
Wed 8/1008:55BOI - AUS
1 stop7h 43mDelta
Tue 14/1007:20AUS - BOI
2 stops13h 56mDelta
Deal found 16/9$393
Tue 14/1009:45BOI - AUS
1 stop7h 56mUnited Airlines
Tue 21/1006:00AUS - BOI
1 stop8h 43mUnited Airlines
Deal found 16/9$415
Tue 28/1007:01BOI - AUS
1 stop6h 18mHawaiian Airlines
Thu 30/1006:00AUS - BOI
1 stop6h 33mHawaiian Airlines
Deal found 15/9$429
Tue 7/1011:12BOI - AUS
1 stop5h 26mDelta
Sat 11/1012:12AUS - BOI
1 stop7h 39mDelta
Deal found 16/9$430
Thu 15/110:38BOI - AUS
2 stops11h 10mDelta
Wed 21/112:25AUS - BOI
2 stops8h 48mDelta
Deal found 16/9$432

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 18 September 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

Tue 4/11

13:00-20:56

1 stop6h 56m

Austin Bergstrom

Fri 7/11

18:12-23:54

1 stop6h 42m

$313

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Sat 17/1

05:40-13:50

1 stop7h 10m

Austin Bergstrom

Tue 20/1

18:55-00:21

1 stop6h 26m

$313

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Sat 17/1

05:40-13:50

1 stop7h 10m

Austin Bergstrom

Wed 21/1

12:05-18:25

1 stop7h 20m

$313

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Mon 27/10

14:11-21:53

1 stop6h 42m

Austin Bergstrom

Wed 29/10

05:30-13:29

2 stops8h 59m

$349

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Sat 11/10

16:46-13:34

1 stop19h 48m

Austin Bergstrom

Tue 14/10

07:20-15:05

1 stop8h 45m

$364

SpokaneNewark

GEG - EWR

GEGEWR

Spokane

Sat 25/10

19:34-05:59

1 stop7h 25m

Newark

Tue 28/10

07:05-13:45

1 stop9h 40m

$387

SpokaneNewark

GEG - EWR

GEGEWR

Spokane

Tue 3/3

14:05-23:37

1 stop6h 32m

Newark

Wed 4/3

06:00-13:14

1 stop10h 14m

$388

SpokaneNew York

GEG - LGA

GEGLGA

Spokane

Wed 22/10

12:51-23:41

1 stop7h 50m

New York LaGuardia

Wed 29/10

07:55-13:05

1 stop8h 10m

$388

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Sat 13/12

15:54-23:57

1 stop7h 03m

Austin Bergstrom

Sun 18/1

07:20-18:25

2 stops12h 05m

$393

SpokaneNew York

GEG - LGA

GEGLGA

Spokane

Sat 25/10

14:17-23:43

1 stop6h 26m

New York LaGuardia

Tue 28/10

07:55-14:57

2 stops10h 02m

$396

Flights are sorted by cheapest return flights first.

Deals found on 15/9

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 $174). Flying from Idaho in November will prove the most costly (average of $424). 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 Seattle/Tacoma Intl, with prices starting at $131. Explore other affordable destinations below.

Seattle/Tacoma Intl
Seattle/Tacoma Intl
From $87
Salt Lake City
Salt Lake City
From $1,653

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Direct flights from USA

Book a direct flight from one of these other cities located in USA.
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 18 September 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 November. 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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