$148+ 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 6/4. 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
30 Mar — 6 Apr1
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 28 February 2026.

Good round-trip deal

$2,368 or less

Good one-way deal

$177 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 28 February 2026.

Tue 28/406:00
BOI
-
AUS
1 stop7h 39m
Alaska Airlines
Tue 28/415:39
AUS
-
BOI
1 stop8h 23m
Alaska Airlines
Deal found 24/2$291
Tue 28/406:15
BOI
-
AUS
1 stop5h 53m
United Airlines
Tue 5/508:45
AUS
-
BOI
1 stop7h 41m
United Airlines
Deal found 26/2$299
Fri 1/515:44
BOI
-
AUS
1 stop7h 04m
Delta
Sat 9/506:00
AUS
-
BOI
1 stop9h 43m
Delta
Deal found 25/2$319
Sat 28/313:45
BOI
-
AUS
1 stop9h 08m
Delta
Tue 31/313:10
AUS
-
BOI
2 stops9h 54m
Delta
Deal found 25/2$326
Tue 28/405:00
BOI
-
AUS
1 stop5h 25m
United Airlines
Mon 4/515:40
AUS
-
BOI
1 stop8h 10m
United Airlines
Deal found 26/2$343
Tue 28/414:57
BOI
-
AUS
1 stop22h 42m
Alaska Airlines
Mon 4/506:00
AUS
-
BOI
1 stop13h 34m
Alaska Airlines
Deal found 27/2$344
Tue 5/518:08
BOI
-
AUS
1 stop22h 56m
Alaska Airlines
Fri 8/519:04
AUS
-
BOI
1 stop21h 29m
Alaska Airlines
Deal found 24/2$346
Thu 30/406:00
BOI
-
AUS
1 stop17h 24m
Alaska Airlines
Mon 4/506:00
AUS
-
BOI
1 stop13h 34m
Alaska Airlines
Deal found 25/2$347
Mon 13/422:40
GEG
-
LGA
1 stop9h 02m
Delta
Tue 21/407:55
LGA
-
GEG
1 stop8h 09m
Delta
Deal found 25/2$353
Sat 28/316:15
BOI
-
AUS
1 stop21h 17m
Alaska Airlines
Sat 4/408:35
AUS
-
BOI
1 stop16h 21m
Alaska Airlines
Deal found 28/2$357
Fri 15/519:23
GEG
-
LGA
2 stops10h 25m
Delta
Tue 19/516:45
LGA
-
GEG
2 stops9h 50m
Delta
Deal found 24/2$385
Tue 24/322:40
GEG
-
PHL
1 stop10h 02m
Delta
Tue 31/307:00
PHL
-
GEG
1 stop8h 45m
Delta
Deal found 25/2$398

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 28 February 2026. In the last 7 days, Cheapflights users made a total of 647,157 searches

Fly to

Route

Depart

Return

Price

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Sat 28/3

16:15-14:32

1 stop21h 17m

Austin Bergstrom

Sat 4/4

08:35-23:56

1 stop16h 21m

$357

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Mon 13/4

15:44-23:48

1 stop7h 04m

Austin Bergstrom

Mon 20/4

08:15-20:00

2 stops12h 45m

$364

SpokanePhiladelphia

GEG - PHL

GEGPHL

Spokane

Tue 24/3

22:40-11:42

1 stop10h 02m

Philadelphia

Tue 31/3

07:00-12:45

1 stop8h 45m

$398

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Fri 3/4

20:28-00:34

1 stop27h 06m

Austin Bergstrom

Mon 6/4

19:04-12:19

1 stop18h 15m

$416

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Wed 13/5

05:45-13:30

1 stop6h 45m

Austin Bergstrom

Mon 18/5

18:06-23:55

1 stop6h 49m

$416

SpokanePhiladelphia

GEG - PHL

GEGPHL

Spokane

Sat 18/4

07:10-17:32

1 stop7h 22m

Philadelphia

Tue 21/4

15:40-21:11

1 stop8h 31m

$417

SpokanePhiladelphia

GEG - PHL

GEGPHL

Spokane

Tue 21/4

13:46-23:43

1 stop6h 57m

Philadelphia

Tue 28/4

10:33-21:11

2 stops13h 38m

$424

SpokanePhiladelphia

GEG - PHL

GEGPHL

Spokane

Tue 21/4

19:38-08:55

2 stops10h 17m

Philadelphia

Tue 28/4

14:59-23:34

2 stops11h 35m

$431

SpokanePhiladelphia

GEG - PHL

GEGPHL

Spokane

Wed 22/4

13:45-23:55

1 stop7h 10m

Philadelphia

Wed 29/4

05:50-13:45

2 stops10h 55m

$436

SpokaneNew York

GEG - LGA

GEGLGA

Spokane

Wed 13/5

17:37-08:48

2 stops12h 11m

New York LaGuardia

Tue 19/5

16:45-23:35

2 stops9h 50m

$447

Flights are sorted by cheapest return flights first.

Deals found on 24/2

Showing 1-10 of 60 resultsSorted by cheapest first
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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 $143). Flying from Idaho in January will prove the most costly (average of $410). 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 $177. Explore other affordable destinations below.

Seattle/Tacoma Intl
Seattle/Tacoma Intl
From $177
Salt Lake City
Salt Lake City
From $2,323

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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 28 February 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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