$21 Cheap Flights to Caldwell, ID

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Featured Airlines: American Airlines, United Airlines, Delta, Spirit, JetBlue, Frontier, Air India, Hawaiian Airlines and Qatar Airways

How much is the cheapest flight to Caldwell?

Prices were available within the past 7 days and start at $21 for one-way flights and $41 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Spirit Airlines
Wed, Sep 11 - Tue, Sep 24
LAS
Harry Reid Intl.
BOI
Boise
$41 Roundtrip, found 4 hours ago
$41
Roundtrip
found 4 hours ago
Select Spirit Airlines flight, departing Wed, Sep 11 from Harry Reid Intl. to Boise, returning Tue, Sep 24, priced at $41 found 4 hours ago
Spirit Airlines
Mon, Sep 23 - Tue, Oct 1
BUR
Hollywood Burbank
BOI
Boise
$70 Roundtrip, found 2 hours ago
$70
Roundtrip
found 2 hours ago
Select Spirit Airlines flight, departing Mon, Sep 23 from Hollywood Burbank to Boise, returning Tue, Oct 1, priced at $70 found 2 hours ago
Spirit Airlines
Wed, Jul 24 - Wed, Jul 31
PDX
Portland Intl.
BOI
Boise
$70 Roundtrip, just found
$70
Roundtrip
just found
Select Spirit Airlines flight, departing Wed, Jul 24 from Portland Intl. to Boise, returning Wed, Jul 31, priced at $70 just found
Spirit Airlines
Tue, Jun 11 - Tue, Jul 16
PHX
Sky Harbor Intl.
BOI
Boise
$77 Roundtrip, found 22 hours ago
$77
Roundtrip
found 22 hours ago
Select Spirit Airlines flight, departing Tue, Jun 11 from Sky Harbor Intl. to Boise, returning Tue, Jul 16, priced at $77 found 22 hours ago
Spirit Airlines
Tue, Jul 2 - Wed, Jul 10
SMF
Sacramento Intl.
BOI
Boise
$78 Roundtrip, found 3 hours ago
$78
Roundtrip
found 3 hours ago
Select Spirit Airlines flight, departing Tue, Jul 2 from Sacramento Intl. to Boise, returning Wed, Jul 10, priced at $78 found 3 hours ago

Find Your Flights to Caldwell BOI

Cheap flights to Caldwell (BOI)

Get started finding a cheap flight to Caldwell on Expedia by either choosing a deal on this page or entering into the search bar your travel dates, origin airport, and whether you want roundtrip or one-way airfare. You can filter for flexibility, number of stops, airline, and departure/arrival times to find the best flight for you.

We recommend using the ‘Flexible Dates’ calendar at the top of the page to see the price of plane tickets on the surrounding dates. This allows you to pick the cheapest days to fly if your trip allows flexibility and score cheap flight deals to Caldwell.

Roundtrip prices range from $41 - $78, and one-ways to Caldwell start as low as $21.

Be aware that choosing a non-stop flight can sometimes be more expensive while saving you time. And routes with connections may be available at a cheaper rate.

Airlines that fly to Caldwell (BOI)

You have several options for which airline you choose to travel with to Caldwell. There are 10 airlines flying into BOI: Spirit Airlines. 

Cheap plane tickets may be available from different airlines at different times and with unique terms. It’s best to understand the details of each airline’s offer before judging its value.

For example, if you plan to check a bag or bring a carry-on, check whether the cheap airfare deal includes a baggage allowance. If not, verify whether the baggage fee is higher than the difference of other airline plane ticket deals offering free checked/carry-on baggage in exchange for a slightly higher airfare. 

Additionally, your preferred frequent flyer membership programs may influence your choice of cheap airline. Expedia allows you to enter your membership numbers during checkout to earn points from your airline and Expedia Rewards—all while getting a great deal and planning all your travel in one online platform.

Find the best deals

At Expedia, we source many flight deals from multiple providers, so you can easily find the best deals that are right for you. A great strategy for getting the best deals can be to make sure you book and travel at the optimal times. Airfare to Caldwell (BOI) varies throughout the year based on seasonal demand. You’ll see the lowest rates for roundtrips to BOI in September and in September for one-ways.

Cancellation & flexibility

To change or cancel eligible flights, go to ‘My Trips’ and navigate to your itinerary. If you booked within the last 24-hours, you might be able to cancel your flight for free. Learn more about flight changes or cancellations from our customer service portal. Some plane tickets are available with no change fees, which you can filter for during your search.

Frequently asked questions

How do I find cheap flights to Caldwell that have flexible change policies?
By using our neat “No change fee” filter, that’s how. Just type in your origin, destination and travel dates, click the “Search” button, then select the box directly underneath the “Flexible change policies” subheading (left-hand side of your screen). Expedia makes it a snap to find flexible, cheap tickets to Caldwell.
What is the name of the airport in Caldwell?
Caldwell has just the one airport, Boise Airport (BOI).
How far is BOI from central Caldwell?
BOI is 40 mi from downtown Caldwell, so be prepared for a bit of a commute into the center of the city.
How can I book the cheapest flight to Caldwell?
To increase your odds of finding the cheapest flight, enter your travel details into the search bar, then filter the results by airline, departure/arrival times and any stops on your route. Also compare the prices of flying into and out of other airports nearby if possible. Timing is a big factor in nabbing a bargain — book domestic flights at least a month out and international flights around six months in advance to save an average of 10%. And if you stumble on an incredible deal, grab it before it’s gone! One of the cheapest fares to Caldwell currently is $33, departing Sacramento in June. Wherever you’re leaving from, Expedia will get you on your way to Caldwell for the best price possible.
Which day of the week is the best day to buy a plane ticket to Caldwell?
Research suggests that Sundays are the best day of the week for booking cheaper airfares. The odds of picking up an incredible deal to Caldwell also depend on how far ahead you book your trip. The cheapest plane tickets can normally be found from 21 days to about 45 days out from departure. You’re also likely to find some good deals when tickets are released. Savings are subject to change and may vary depending on selections made.
What airport is best to fly into Caldwell?
With only one major airport operating in Caldwell, it won’t take you long to find the best flight. You’ll be jetting off to BOI, which is located around 40 mi from the center of town.
Which airlines fly to Caldwell?
Take your pick of 6 airlines that connect Caldwell with 21 airports around the globe, including Alaska Airlines. Seattle is the most popular departure point for Alaska Airlines flights to Caldwell. Delta Air Lines also has regular services to this destination.
How many nonstop flights are there to Caldwell?
Flying to someplace new is much more fun when there aren’t any stopovers involved. If you’re traveling to Caldwell, the great news is that there are 484 direct flights every week.
Where are the most popular flights to Caldwell departing from?
A large number of flights to Caldwell depart from Seattle, Denver and Las Vegas airports.
Do you have any tips for my flight to Caldwell?

  • What you pack in your carry-on baggage can mean the difference between a comfortable flight, and one that wears you out. Start with the important stuff, like your passport (or a valid ID) and your travel documents. Once they’re packed, throw in any medications you might need. After that, consider your comfort factor. A neck pillow, earphones and a book will help the time fly by while you’re soaring through the sky.
  • It also pays to check with your airline regarding what you can’t bring on board your flight. Swords, batons, box cutters, razor blades and knives are among the prohibited items. Anything explosive, sharp or flammable is generally not allowed in your carry-on bags. Remember to pack any sports equipment like baseball bats or ski poles in your checked luggage.

What to wear on a flight:

  • Go for comfort rather than fashion when flying. Dress in layers and wear natural materials since they allow air and moisture to pass through and keep you cool. Cabins can get colder on longer flights, so pack a sweater and always wear sneakers or flat, closed-toe shoes.
  • Consider wearing compression tights or socks to reduce the risk of deep vein thrombosis (DVT). This blood clotting condition can be caused by prolonged periods of sitting, especially on long flights. Doing leg and foot exercises in your seat or walking around the cabin are great ways to improve your circulation.

How can I get a cheap last-minute flight to Caldwell?
Scoring a cheap, spur-of-the-moment flight to Caldwell is as easy as being flexible with your travel plans. Keep your options open when it comes to your choice of carrier, travel dates and flight times. If your destination has a few airports to choose from, compare the prices of flying into each of them for the best deal on your airfare.
Where can I learn more about changing or canceling my flight to Caldwell?
Most flights are free to cancel within 24 hours of making the reservation. However, some flights are non-refundable, and you may receive a flight credit from the airline to use for a future booking. For more information, please visit our Customer Service Portal.
Flights to Caldwell information
Destination airport
Boise
Destination airport IATA code
BOI
Destination city name
Boise
Roundtrip price
$40

Trending flights to Caldwell

Prices were available within the past 7 days and start at $21 for one-way flights and $41 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Spirit Airlines
Wed, Sep 11 - Tue, Sep 24
LAS
Harry Reid Intl.
BOI
Boise
$41 Roundtrip, found 4 hours ago
$41
Roundtrip
found 4 hours ago
Select Spirit Airlines flight, departing Wed, Sep 11 from Harry Reid Intl. to Boise, returning Tue, Sep 24, priced at $41 found 4 hours ago
*Available to One Key members.