$63 Cheap Flights to Caldwell, ID

Flights to Caldwell at a glance

Traveling to Caldwell is easy—simply choose between full-service and budget airlines. Explore your options by comparing journey times and selecting the best flights to Caldwell that align with your budget and plans to discover the city's renowned attractions and neighborhoods.

• Major airport near Caldwell: Boise Airport (BOI)
• Flights per week: 2,400+ flights arriving at Caldwell airport
• Number of airlines that fly to Caldwell: around 25+ carriers

Popular airport near Caldwell

Caldwell is a charming city ideal for outdoor adventures, family getaways, and romantic escapes. With its stunning scenery and opportunities for exploration, it's no wonder travelers flock here. Accessing Caldwell is convenient, as it is typically served by a major airport, connecting visitors to one-way flights easily.

• Boise Airport (BOI): Situated in Ada County, Idaho, approximately 24 miles from Caldwell, this airport offers a range of domestic and international connections, linking travelers to around 195 domestic cities and over 60 international locales. Passengers have the option to enhance their travel experience by selecting first class, business class, or premium economy class seating, depending on their chosen airline and route. Key airlines operating from this airport include Alaska Airlines, Delta, and United.

Top routes to Caldwell

• Phoenix (PHX) to Caldwell (BOI), with one-way flights starting at around $70
• Seattle (SEA) to Caldwell (BOI), with one-way fares starting at around $50
• Los Angeles (LAX) to Caldwell (BOI), with one-way fares starting at around $90
• Las Vegas (LAS) to Caldwell (BOI), with one-way flight options from around $65
• San Diego (SAN) to Caldwell (BOI), with one-way airfare from around $70

Cheapest routes to Caldwell

• Seattle (SEA) to Caldwell (BOI), with low one-way fares from around $50
• Denver (DEN) to Caldwell (BOI), with low-cost one-way tickets from around $50
• Bozeman (BZN) to Caldwell (BOI), with low-cost one-way tickets from around $60
• Las Vegas (LAS) to Caldwell (BOI), with low one-way fares from around $65
• Phoenix (PHX) to Caldwell (BOI), with low-cost one-way tickets from around $70

*Flight times and fares vary by season and availability and are based on one-way routes

Top airlines with flights to Caldwell

• Delta: Operating flights to Boise Airport (BOI), Delta represents about 23% of arrivals in Caldwell. One-way fares hover around $300, with premium cabin choices that may include premium economy and first class based on the specific route.
• Alaska Airlines: Serving Boise Airport (BOI), Alaska Airlines accounts for roughly 22% of arrivals to Caldwell. Passengers can expect an average one-way fare of approximately $250, with premium cabin offerings that can include business and first class depending on the route.
• United: United operates to Boise Airport (BOI), contributing around 21% of Caldwell's arrivals. The average one-way fare is approximately $300, and premium cabin options may feature first class based on the particular route.
• Southwest Airlines: Flying into Boise Airport (BOI), Southwest Airlines makes up about 17% of arrivals to Caldwell. Average one-way fares are approximately $250, offering a budget-friendly option for travelers.
• American Airlines: Operating flights to Boise Airport (BOI), American Airlines represents around 14% of Caldwell's arrivals. The typical one-way fare is about $290, with first class as a premium service option depending on the route.

Best time to fly to Caldwell

The most popular months for travelers to fly to Caldwell are January, March, and April, when peak temperatures in Caldwell can reach up to 50.7°F in April. If you prefer quieter travel, consider September, the least busy time to visit with temperatures around 68.4°F and typically the lowest average one-way fare (around $210), roughly 10% cheaper than the yearly average. Looking for additional cheaper months to fly? August, October, and May offer average one-way fares of around $220, making them good options for flexible travelers.

*Average one-way fare is based on Expedia flight booking data from January 2025 to April 2026 for the specified route and travel class and may change depending on availability, dates, and demand.

How to save money on a flight to Caldwell

Getting some of the best deals on flights to Caldwell is all about timing and flexibility. Here are some key tips to help you save:

1. Compare flight options—use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
2. Set up price alerts—as an Expedia member you can use Price Tracking to receive notifications when flight prices change.
3. Bundle and save—book a flight and unlock a hotel deal on Expedia*, or explore our Caldwell hotel and flight deals.
4. Think about luggage-nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your baggage allowance before confirming your booking to avoid excess baggage fees at the airport.
5. Earn miles—you can earn airline miles when you book your Caldwell flight with Expedia. Just select your frequent flyer program and enter your program number when confirming your booking.

*For members. Select hotels.

Arriving in Caldwell

Caldwell welcomes travelers through its range of transport options based on price, convenience, and proximity. Here's how to reach Caldwell efficiently:

• Public transportation: From Boise Airport, travelers will find Boise Station, a train station located about 2.4 miles away by car, while Boise Bus Station, a bus station, is situated approximately 3.8 miles from the airport, also accessible by car.
• Hotel transfer: Transfers offer a convenient way to reach your hotel in Caldwell, with private rides that can be arranged in advance.
• Car rental: Renting a car in Caldwell is a good option if you plan to explore and sightsee beyond the city. Browse cheap car rentals in Caldwell on Expedia.
• Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.

Where to stay in and around Caldwell

• Nampa: Located 9 miles drive away from Caldwell, Nampa is a vibrant city that attracts visitors for business and family-friendly experiences. Enjoy a range of activities at local venues, including the Ford Idaho Center, which hosts various events and conferences, and the Nampa Civic Center, perfect for those interested in the arts. Don't miss a visit to Northwest Nazarene University, a contemporary campus that reflects the city's educational spirit. With ample shopping and dining options, Nampa is an excellent stop for travelers looking to explore and engage with the community.
• Huston: Huston is located in the area of Caldwell and offers a charming village atmosphere, ideal for outdoor enthusiasts and couples seeking a romantic getaway. Enjoy scenic trails and the tranquility of nearby urban parks and rivers. Key attractions include the Canyon County Fairgrounds, which hosts various events perfect for families. The Ford Idaho Center and the College of Idaho are also within reach, adding to the area's appeal. Huston’s natural beauty makes it a lovely destination for those looking to unwind and connect with nature.
• Homedale: Homedale is located 16 miles drive away from Caldwell and is a haven for adventure seekers and nature lovers. This city boasts stunning scenery, with opportunities for hiking and exploring recreational areas. The nearby river and lake provide perfect spots for relaxation and outdoor activities. Highlights include Centennial Park, ideal for family outings, and the Orma J. Smith Museum of Natural History, which offers insight into the region's natural heritage. With its picturesque landscapes, Homedale is a must-visit for anyone seeking adventure and exploration.

Tips for short-haul flights to Caldwell

For quick getaways, efficiency is key. Here is how to make your short-haul journey smoother:

• Pack light and skip checked bags—when flying with budget airlines, it's often more economical to travel with just a carry-on. Maximize space by using mini toiletries, wearing your heaviest clothing, and planning your outfits wisely. This approach also allows you to bypass waiting at baggage claim upon arrival.
• Bring your own entertainment—many short-haul flights may not provide in-flight entertainment options. Download your favorite TV shows, movies, music, or podcasts ahead of time, and consider bringing a book to keep yourself occupied. Remember to charge your devices fully before you board.
• Arrive at the airport in plenty of time—even for short or domestic flights, it's advisable to arrive at least 1.5 to 2 hours prior to departure, taking into account potential traffic and security lines.
• Bring your own snacks and water—pack some snacks and a refillable water bottle to stay hydrated and save money while at the airport.

Tips for long-haul flights to Caldwell

Flying long-haul sometimes requires extra planning to ensure a comfortable journey:

• Select your seat in advance—for longer flights, choosing your seat is essential for comfort. Full-service airlines typically allow free seat selection once online check-in opens, which is generally 24–48 hours prior to your flight. Some airlines may provide seat selection even earlier.
• Arrive at the airport in plenty of time—aim to be at the airport at least 3 hours before international flights to ensure you have enough time for check-in, security, and immigration procedures.
• Relax at the airport—if you have some extra time, take the opportunity to explore the shops, grab a coffee, or unwind at the gate or in a departure lounge, if you have access. Most airports offer free Wi-Fi for your convenience.
• Adjust to the new time zone mid-flight—begin aligning your body clock by changing your watch and adjusting your sleep schedule to fit your destination's time zone. Try to sleep or stay awake during the flight according to the local time of your arrival to help minimize jet lag.

Tips to find the cheapest flights to Caldwell

The cheapest day to fly

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.

The cheapest month to fly

December is the cheapest month to fly to Caldwell. This coincides with the low season when fewer people travel. Whichever month you travel in, though, be sure to book at least a month in advance if you want to score cheap tickets to Caldwell. ARC's data shows that domestic flights booked 28 days or more before departure are typically 24% cheaper than those booked last minute.

The most affordable time to book a flight

Typically, a Sunday can be the cheapest time to book a flight to Caldwell, according to ARC’s data. On average, you could save between 6% and 13% by booking on a Sunday instead of a Friday, which is the most expensive day to make a reservation.

The cheapest round-trip tickets to Caldwell

The lowest price for round-trip flights to Caldwell in 2026 starts from $123, while one-way tickets start from from $63. Expedia's effective search tool is one of the best ways to find a budget airfare. Simply enter your dates, and within seconds, it'll show you a vast selection of the cheapest flights to Caldwell. If you have a preferred departure time or airline, you can use the handy filters to customize your search.

The cheapest airlines flying to Caldwell

Frontier Airlines, Southwest Airlines, American Airlines, United, Delta, Alaska Airlines are just some of the airlines that can typically offer cheap tickets to Caldwell. You can find their most affordable flights by using the “airline” search filter and then sorting prices from low to high. As a trusted partner of the world's leading airlines, Expedia offers you some of the best airfare deals to Caldwell and countless more destinations worldwide.

The most affordable airports to fly into

To view the cheapest airports to fly into for Caldwell, simply order your search results from lowest to highest price. Expedia's search tool compares flight prices for all airports close to your destination, so you don't have to manually search them one by one to find the cheapest flight to Caldwell. If you have a preferred place to fly into, take advantage of the “arrival airport” filter to narrow down your search on Expedia.

Save with a package

With Expedia's amazing package deals, you could save hundreds of dollars by booking your Caldwell plane tickets together with your accommodations, car rental, or activities. Just select the search wizard's “package” option to view some of the cheapest deals. Look out for the green savings label to see how much you're saving.

Date flexibility for the cheapest flights to Caldwell

If you can be flexible with your travel dates, it's a good idea to broaden your search by comparing prices on different days. This will open up more options, meaning you could uncover a less expensive flight to Caldwell.

Stopover savings

The cheapest tickets to Caldwell are sometimes those with a stopover. Book one of these flights, and you'll change planes at an airport en route to Caldwell. While the overall travel time might be longer than a non-stop flight, you may decide it's worth it for the money saved.

Get Expedia's Price Drop Protection

Price Drop Protection means that if your flight gets cheaper after booking, you'll be credited the difference*. This gives you peace of mind that you're getting one of the cheapest flights to Caldwell for your chosen departure. Expedia's Price Drop Protection is available for a small fee but is free to One Key Gold and Platinum tier members.

*Terms apply.

Use our Price Tracking feature

Expedia's Price Tracking feature is another great tool that removes the guesswork from finding cheap flights to Caldwell. Simply download the free Expedia app to your smart device and activate Caldwell flight price alerts for your travel dates. There's even a price predictor tool that uses historical data to indicate the best time to book, giving you peace of mind that you'll nab the lowest prices.

Book with Expedia

As well as Price Drop Protection and Price Tracking, Expedia's close partnership with a vast selection of the world's leading airlines means you're sure to find cheap flights to Caldwell. Plus, the One Key rewards program lets you earn real cash rewards on most bookings that you can use to save money on future trips. Best of all, it's free to join, and members often unlock exclusive discounts, too.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.