$137+ 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 16/12. 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
27 Dec — 3 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 27 November 2025.

Good round-trip deal

$2,591 or less

Good one-way deal

$134 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

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 27 November 2025.

Wed 4/308:30BOI - AUS
1 stop14h 29mAlaska Airlines
Sat 7/319:00AUS - BOI
1 stop14h 40mAlaska Airlines
Deal found 24/11$406
Sun 18/106:23BOI - AUS
1 stop8h 31mAlaska Airlines
Thu 22/107:15AUS - BOI
1 stop8h 55mAlaska Airlines
Deal found 26/11$446
Sun 18/111:20BOI - AUS
1 stop4h 58mDelta
Thu 22/118:50AUS - BOI
1 stop5h 22mDelta
Deal found 25/11$447
Sat 13/1215:54BOI - AUS
1 stop7h 09mDelta
Mon 19/107:35AUS - BOI
1 stop5h 34mDelta
Deal found 25/11$452
Tue 13/106:30GEG - LGA
1 stop9h 35mDelta
Fri 16/116:59LGA - GEG
2 stops10h 09mDelta
Deal found 25/11$452
Wed 31/1214:30BOI - AUS
1 stop7h 45mSouthwest
Mon 5/120:05AUS - BOI
1 stop5h 40mSouthwest
Deal found 26/11$454
Thu 15/105:40BOI - AUS
2 stops10h 55mDelta
Sun 18/112:00AUS - BOI
2 stops9h 12mDelta
Deal found 25/11$458
Tue 24/206:30GEG - EWR
1 stop9h 00mDelta
Sat 28/206:00EWR - GEG
1 stop10h 08mDelta
Deal found 24/11$460
Thu 8/119:25GEG - LGA
2 stops10h 34mDelta
Wed 14/116:59LGA - GEG
2 stops10h 09mDelta
Deal found 25/11$460
Tue 10/205:45GEG - EWR
1 stop9h 39mAlaska Airlines
Tue 17/217:30EWR - GEG
1 stop8h 31mAlaska Airlines
Deal found 27/11$461
Tue 10/205:15GEG - EWR
2 stops11h 04mDelta
Tue 17/206:00EWR - GEG
1 stop8h 35mDelta
Deal found 27/11$470
Thu 8/119:25GEG - EWR
2 stops10h 27mDelta
Wed 14/109:39EWR - GEG
2 stops12h 06mDelta
Deal found 25/11$486

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 27 November 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 4/3

08:30-23:59

1 stop14h 29m

Austin Bergstrom

Sat 7/3

19:00-08:40

1 stop14h 40m

$406

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Sun 22/2

05:40-16:45

1 stop10h 05m

Austin Bergstrom

Sun 22/2

19:55-12:40

1 stop17h 45m

$446

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Sun 18/1

09:02-17:59

1 stop7h 57m

Austin Bergstrom

Thu 22/1

07:15-15:10

1 stop8h 55m

$446

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Sat 13/12

15:54-00:03

1 stop7h 09m

Austin Bergstrom

Mon 19/1

07:35-12:09

1 stop5h 34m

$452

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Thu 15/1

05:40-17:35

2 stops10h 55m

Austin Bergstrom

Sun 18/1

12:00-20:12

2 stops9h 12m

$458

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Fri 6/2

09:15-22:24

2 stops12h 09m

Austin Bergstrom

Fri 13/2

13:59-23:45

2 stops10h 46m

$458

SpokaneNew York

GEG - LGA

GEGLGA

Spokane

Thu 8/1

19:25-08:59

2 stops10h 34m

New York LaGuardia

Wed 14/1

16:59-00:08

2 stops10h 09m

$460

SpokaneNewark

GEG - EWR

GEGEWR

Spokane

Tue 10/2

19:49-18:24

1 stop19h 35m

Newark

Tue 17/2

19:29-08:56

1 stop16h 27m

$461

SpokaneNewark

GEG - EWR

GEGEWR

Spokane

Tue 24/2

14:05-23:30

1 stop6h 25m

Newark

Sat 28/2

17:30-22:51

1 stop8h 21m

$463

SpokaneNewark

GEG - EWR

GEGEWR

Spokane

Tue 10/2

05:05-18:30

2 stops10h 25m

Newark

Tue 17/2

06:00-11:35

1 stop8h 35m

$470

Flights are sorted by cheapest return flights first.

Deals found on 25/11

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 $177). Flying from Idaho in March will prove the most costly (average of $421). 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 $134. Explore other affordable destinations below.

Seattle/Tacoma Intl
Seattle/Tacoma Intl
From $134
Salt Lake City
Salt Lake City
From $2,541

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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 27 November 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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