$37+ Cheap flights from Idaho
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/19. Fares are subject to change and may not be available on all flights or dates of travel.
Find flights from Idaho within your budget
Fly to
Route
Depart
Return
BoiseSan Diego
BOI Boise Air Term. Gowen Fld - SAN San Diego
BOISAN
Boise Air Term. Gowen Fld
Mon 12/21
5:55 am-7:05 am
Nonstop2h 10m
San Diego
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
BoiseSan Diego
BOI Boise Air Term. Gowen Fld - SAN San Diego
BOISAN
Boise Air Term. Gowen Fld
Mon 10/19
7:37 pm-8:58 pm
Nonstop2h 21m
San Diego
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
BoiseSan Diego
BOI Boise Air Term. Gowen Fld - SAN San Diego
BOISAN
Boise Air Term. Gowen Fld
Thu 12/3
4:25 pm-5:40 pm
Nonstop2h 15m
San Diego
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
BoiseSan Diego
BOI Boise Air Term. Gowen Fld - SAN San Diego
BOISAN
Boise Air Term. Gowen Fld
Tue 10/20
1:50 pm-3:05 pm
Nonstop2h 15m
San Diego
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
BoiseSan Diego
BOI Boise Air Term. Gowen Fld - SAN San Diego
BOISAN
Boise Air Term. Gowen Fld
Wed 10/21
7:03 am-10:17 am
1 stop4h 14m
San Diego
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
BoiseLas Vegas
BOI Boise Air Term. Gowen Fld - LAS Las Vegas Harry Reid Intl
BOILAS
Boise Air Term. Gowen Fld
Mon 11/16
10:41 am-11:34 am
Nonstop1h 53m
Las Vegas Harry Reid Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
BoiseSan Diego
BOI Boise Air Term. Gowen Fld - SAN San Diego
BOISAN
Boise Air Term. Gowen Fld
Mon 12/21
5:55 am-10:39 am
1 stop5h 44m
San Diego
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
BoiseSan Diego
BOI Boise Air Term. Gowen Fld - SAN San Diego
BOISAN
Boise Air Term. Gowen Fld
Tue 10/20
4:00 pm-7:14 pm
1 stop4h 14m
San Diego
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
BoiseLas Vegas
BOI Boise Air Term. Gowen Fld - LAS Las Vegas Harry Reid Intl
BOILAS
Boise Air Term. Gowen Fld
Wed 11/18
11:25 am-12:15 pm
Nonstop1h 50m
Las Vegas Harry Reid Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
BoiseSan Diego
BOI Boise Air Term. Gowen Fld - SAN San Diego
BOISAN
Boise Air Term. Gowen Fld
Wed 11/18
5:45 am-9:40 am
1 stop4h 55m
San Diego
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
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.
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, April is the cheapest month in which you can book a flight from Idaho (average of $166). Flying from Idaho in July will prove the most costly (average of $363). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.
Which airlines fly from Idaho?
For flights departing from Idaho check dates and pricing for the following: Alaska Airlines, Delta. These airlines depart to the following popular destinations: Seattle.
What is the cheapest place to fly to from Idaho?
The cheapest city to fly to from Idaho is Las Vegas Harry Reid Intl, with prices starting at $54. Explore other affordable destinations below.
When is the best time to book a flight from Idaho?
To ensure you get the cheapest price possible for a flight from Idaho, you should look to book at least 57 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
When is the cheapest time to fly from Idaho?
Use this chart to determine the cheapest time to fly round-trip from Idaho to Seattle. Price data was last updated on September 19, 2026.
Those who are seeking the cheapest fare on flights departing from Idaho would be wise to consider leaving during Thursday at noon when prices are typically at their lowest. When considering other options, price-conscious travelers should avoid Sunday mornings when fares are usually the most expensive.
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Popular international destinations from United States
The most popular international flight routes departing from United States we’ve come across at this time.
Fly from popular cities in Idaho
Consider departing from one of these cities also located in Idaho. Flight origins are based on user searches made on Cheapflights and were last updated on September 23, 2026.
Fly from other United States cities
Popular Round-Trip Flight Destinations
Consider these popular destinations that Cheapflights users have chosen when departing from Idaho. Routes are based on user searches and were last updated on September 23, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 September 23, 2026.