$141+ 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 10/4. 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
13 Apr — 20 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 14 March 2026.

Good round-trip deal

$2,396 or less

Good one-way deal

$179 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 14 March 2026.

Tue 14/414:22
BOI
-
AUS
1 stop9h 12m
Alaska Airlines
Sat 18/407:20
AUS
-
BOI
1 stop13h 26m
Alaska Airlines
Deal found 9/3$377
Thu 14/515:14
BOI
-
AUS
1 stop7h 45m
Delta
Tue 19/506:00
AUS
-
BOI
1 stop6h 35m
Delta
Deal found 10/3$380
Wed 1/405:00
BOI
-
AUS
1 stop5h 25m
United Airlines
Tue 7/407:00
AUS
-
BOI
1 stop9h 24m
United Airlines
Deal found 11/3$388
Tue 14/414:37
BOI
-
AUS
1 stop5h 38m
United Airlines
Sat 18/411:13
AUS
-
BOI
1 stop6h 35m
United Airlines
Deal found 10/3$394
Wed 1/405:40
BOI
-
AUS
2 stops10h 00m
Southwest
Tue 7/417:20
AUS
-
BOI
2 stops8h 05m
Southwest
Deal found 11/3$402
Tue 28/405:05
GEG
-
LGA
1 stop7h 45m
United Airlines
Sat 2/506:10
LGA
-
GEG
2 stops11h 21m
United Airlines
Deal found 11/3$404
Mon 4/516:38
BOI
-
AUS
1 stop6h 46m
Alaska Airlines
Mon 11/506:00
AUS
-
BOI
1 stop8h 52m
Alaska Airlines
Deal found 9/3$407
Tue 14/406:00
BOI
-
AUS
2 stops8h 20m
Southwest
Sat 18/415:15
AUS
-
BOI
2 stops9h 00m
Southwest
Deal found 10/3$408
Tue 28/406:30
GEG
-
LGA
2 stops9h 25m
Southwest
Tue 5/513:25
LGA
-
GEG
2 stops12h 30m
Southwest
Deal found 14/3$411
Sat 18/405:45
GEG
-
LGA
2 stops13h 30m
Southwest
Sat 25/407:15
LGA
-
GEG
1 stop11h 50m
Southwest
Deal found 12/3$419
Sat 4/410:09
BOI
-
AUS
1 stop6h 34m
Delta
Tue 7/416:15
AUS
-
BOI
1 stop6h 26m
Delta
Deal found 14/3$422
Wed 15/407:10
GEG
-
EWR
1 stop13h 01m
Alaska Airlines
Wed 22/417:56
EWR
-
GEG
1 stop8h 15m
Alaska Airlines
Deal found 13/3$422

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

Fly to

Route

Depart

Return

Price

Cheapest return flight

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Tue 14/4

14:22-00:34

1 stop9h 12m

Austin Bergstrom

Sat 18/4

07:20-19:46

1 stop13h 26m

$377

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Mon 4/5

16:38-00:24

1 stop6h 46m

Austin Bergstrom

Mon 11/5

06:00-13:52

1 stop8h 52m

$407

SpokaneNewark

GEG - EWR

GEGEWR

Spokane

Sat 18/4

19:43-06:00

1 stop7h 17m

Newark

Tue 21/4

17:00-23:10

1 stop9h 10m

$422

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Mon 13/4

15:44-23:48

1 stop7h 04m

Austin Bergstrom

Wed 15/4

16:25-23:00

1 stop7h 35m

$425

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Mon 13/4

14:22-00:34

1 stop9h 12m

Austin Bergstrom

Tue 14/4

16:32-23:47

1 stop8h 15m

$425

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

$429

SpokaneNewark

GEG - EWR

GEGEWR

Spokane

Wed 15/4

19:38-08:41

2 stops10h 03m

Newark

Wed 22/4

06:00-11:41

1 stop8h 41m

$458

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Wed 8/4

13:05-20:35

1 stop6h 30m

Austin Bergstrom

Fri 10/4

17:40-01:00

2 stops8h 20m

$469

SpokanePhiladelphia

GEG - PHL

GEGPHL

Spokane

Mon 20/4

14:50-00:35

1 stop6h 45m

Philadelphia

Wed 29/4

05:50-10:15

1 stop7h 25m

$481

SpokanePhiladelphia

GEG - PHL

GEGPHL

Spokane

Mon 20/4

14:50-00:35

1 stop6h 45m

Philadelphia

Tue 21/4

05:50-13:05

2 stops10h 15m

$488

Flights are sorted by cheapest return flights first.

Deals found on 12/3

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 $145). Flying from Idaho in March will prove the most costly (average of $428). 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 $179. Explore other affordable destinations below.

Seattle/Tacoma Intl
Seattle/Tacoma Intl
From $179
Salt Lake City
Salt Lake City
From $2,350

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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 14 March 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 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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