$57 Cheap Flights to Caldwell, ID

View $57 flight on Tue, Jun 23, 2026Opens in a new window

Popular airlines to Caldwell

How much is the cheapest flight to Caldwell?

Prices were available within the past 7 days and start at $57 for one-way flights and $114 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Tue, Jun 9 - Tue, Jun 16
DEN
Denver
BOI
Boise
$114 Roundtrip, found 1 day ago
$114
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Tue, Jun 9 from Denver to Boise, returning Tue, Jun 16, priced at $114 found 1 day ago
American Airlines
Sat, Sep 12 - Tue, Sep 15
SAN
San Diego
BOI
Boise
$159 Roundtrip, found 1 day ago
$159
Roundtrip
found 1 day ago
Select American Airlines flight, departing Sat, Sep 12 from San Diego to Boise, returning Tue, Sep 15, priced at $159 found 1 day ago
Delta
Tue, Jul 28 - Thu, Aug 6
SAN
San Diego
BOI
Boise
$165 Roundtrip, just found
$165
Roundtrip
just found
Select Delta flight, departing Tue, Jul 28 from San Diego to Boise, returning Thu, Aug 6, priced at $165 just found
Southwest Airlines
Tue, May 26 - Tue, Jun 2
ONT
Ontario
BOI
Boise
$167 Roundtrip, found 21 hours ago
$167
Roundtrip
found 21 hours ago
Select Southwest Airlines flight, departing Tue, May 26 from Ontario to Boise, returning Tue, Jun 2, priced at $167 found 21 hours ago
Alaska Airlines
Tue, May 5 - Tue, May 12
BUR
Burbank
BOI
Boise
$197 Roundtrip, found 3 hours ago
$197
Roundtrip
found 3 hours ago
Select Alaska Airlines flight, departing Tue, May 5 from Burbank to Boise, returning Tue, May 12, priced at $197 found 3 hours ago

Alternative airports near Caldwell

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Boise Airport BOI. Cheapest and Closest option available. Average driving time to city center is 29 minutes. Flights from $468
BOI
Boise Airport
CheapestClosest
Average driving time to city center29 min
Flights from $468

Frequently asked questions

What month is the cheapest to fly to Caldwell?
The cheapest month to fly to Caldwell is June when there's less demand. Off-peak months are often when you'll find cheap flights. To keep costs down, steer clear of flying during public holidays and school breaks.
Which US cities have the cheapest flights to Caldwell?
Seattle, Denver and Phoenix generally offer cheap flights to Caldwell. Bear in mind that fares vary based on factors like demand, number of stopovers and time of year.
Which US cities fly direct to Caldwell?
Choose from 22 US cities offering direct flights to Caldwell. When booking on Expedia, select the "Direct flights only" filter to compare nonstop itineraries. Fly to Caldwell from any of these top cities:

  • Seattle
  • Denver
  • Phoenix
  • Salt Lake City
  • Portland

How to find a cheap flight to Caldwell?
Book your trip early to snag cheap flights to Caldwell. Also, consider traveling during off-peak months like December and January. If you jet off on a Thursday, you'll save 16% on average compared to those departing on a Sunday.* Save time searching every day and track your flight prices using the Expedia app. We'll let you know when fares change.*Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation's (ARC) global airline sales database. Percentages noted are averages.
How to get a cheap last-minute flight to Caldwell?
Although booking in advance is generally the easiest way to save cash, don't worry if your Caldwell vacation is last minute. You can still find cheap flights to Caldwell, especially if your plans have a little leeway. Try switching up your trip dates, looking at different ticket types or jetting out of an alternative hub.
How far in advance should I book a flight to Caldwell?
Secure the travel dates you want and a price that works with your budget by booking your domestic flight to Caldwell up to 28 days in advance. Search for tickets two to four months ahead if you're headed to Caldwell from an international destination.**Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation's (ARC) global airline sales database. Percentages noted are averages.
Which day of the week is the cheapest day to buy a plane ticket to Caldwell?
You'll save an average of 8% if you purchase plane tickets on a Sunday rather than Fridays, which tend to be the priciest day to book.* When it comes to scoring a cheap flight to Caldwell, it's all about timing.*Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation's (ARC) global airline sales database. Percentages noted are averages.
Which airlines fly to Caldwell?
A total of 6 carriers connect 19 airports all over the world to Caldwell. Here are some of the most popular airlines to Caldwell, where Boise Airport (BOI) is the chief entry point:

  • Alaska Airlines
  • Delta Air Lines
  • United Airlines
  • American Airlines

Where do you fly into Caldwell?
The main airport to fly to Caldwell is Boise Airport (BOI). You can also land at Ontario, OR (ONO-Ontario Municipal) when flying to Caldwell.
How far is the airport from central Caldwell?
You'll be about 25 mi east of the center of Caldwell after arriving at Boise Airport (BOI).
Can I save money by booking a Caldwell trip package?
You could potentially save hundreds of dollars if you secure a Caldwell flight and hotel package deal on Expedia. And you'll save yourself hassle by having all your travel arrangements in the same place. Try bundling your flight and hotel with add-ons like activities and tours for your own personalized Caldwell trip.
Can I change or cancel my flight to Caldwell?
It's often possible to change or cancel your flight to Caldwell. Many airlines allow you to cancel your flights for free within 24 hours of booking. However, some flights are non-refundable, and airlines may issue you a credit toward a future trip in place of a direct refund. To secure cheap flights to Caldwell with flexible change policies, check "No cancel fee" or "Changes included" during your search. Want more information? Go to our Customer Service Portal.

*Flight schedules are subject to change.

*Available to One Key members.

 

Travel information

Destination airport
Boise
Destination airport IATA code
BOI
Destination city name
Boise
Roundtrip price
$114

Trending flights to Caldwell

Prices were available within the past 7 days and start at $57 for one-way flights and $114 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Tue, Jun 9 - Tue, Jun 16
DEN
Denver
BOI
Boise
$114 Roundtrip, found 1 day ago
$114
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Tue, Jun 9 from Denver to Boise, returning Tue, Jun 16, priced at $114 found 1 day ago

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