circular cuts of wood along the banks of the lake with vast still blue lake water and lush green and autumn colored trees reflecting off the lake at Lake Gregory in Crestline California

$23 Cheap Flights to Crestline, CA

View $23 flight on Thu, Sep 17, 2026Opens in a new window

Popular airlines to Crestline

How much is the cheapest flight to Crestline?

Prices were available within the past 7 days and start at $23 for one-way flights and $46 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Breeze Airways
United
Southwest Airlines
American Airlines

Alternative airports near Crestline

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

Find the cheapest month to fly from Columbus (CMH) to Los Angeles (LAX)

From $229 - $316 per traveler.

What you need to know for your flight to Crestline

Flights to Crestline at a glance

Traveling to Crestline is easy; simply choose between full-service and budget airlines. Compare flight durations and select the best option that aligns with your budget, schedule, and plans to discover the city’s renowned attractions and neighborhoods.

  • Major airports near Crestline: Los Angeles - Ontario International Airport (ONT), San Bernardino International Airport (SBD)
  • Closest airport to Crestline: San Bernardino International Airport, SBD (around 10 miles)
  • Flights per week: 2,700+ flights arriving across Crestline airports
  • Number of airlines that fly to Crestline: around 20+ carriers

Popular airports near Crestline

Crestline is a charming city perfect for outdoor enthusiasts, scenic getaways, and romantic escapes. Visitors are drawn to its vibrant culture, family-friendly activities, and business opportunities. Conveniently, two major airports serve the area, making it easy for travelers to reach this delightful destination.

  • Los Angeles - Ontario International Airport (ONT): Situated in San Bernardino County, California, approximately 22 miles from Crestline, this airport offers both domestic and international flights. It connects to over 205 domestic cities and 60 international locations, allowing travelers to opt for first class, premium economy, or business class seating for enhanced comfort, depending on the airline and route. Key airlines operating here include American Airlines, Frontier Airlines, and Southwest Airlines.
  • San Bernardino International Airport (SBD): This airport is located in San Bernardino County, California, just about 10 miles from Crestline. Primarily serving domestic flights, it connects travelers to around 2 cities nationwide. Breeze is a notable airline serving this airport, providing a reliable option for local travelers.

Top routes to Crestline

  • Seattle (SEA) to Crestline (ONT), with one-way flight options from around $60
  • Dallas (DFW/DAL) to Crestline (ONT), with one-way tickets available from around $55
  • San Francisco (SFO) to Crestline (SBD/ONT), with one-way airfare from around $30
  • Denver (DEN) to Crestline (ONT), with one-way flight options from around $40
  • Portland (PWM/PDX) to Crestline (ONT), with one-way flight options from around $55

Cheapest routes to Crestline

  • Provo (PVU) to Crestline (SBD), with low-cost one-way tickets from around $25
  • San Francisco (SFO) to Crestline (SBD/ONT), with low-cost one-way tickets from around $30
  • Las Vegas (LAS) to Crestline (ONT), with cheap one-way fares from around $30
  • Denver (DEN) to Crestline (ONT), with low-cost one-way tickets from around $40
  • Phoenix (PHX) to Crestline (ONT), with low one-way fares from around $50

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

Top airlines with flights to Crestline

  • American Airlines: Provides service to Los Angeles - Ontario International Airport (ONT), representing roughly 28% of the arrivals in Crestline. The typical one-way fare hovers around $270, with the possibility of first class as a premium cabin choice based on the route.
  • Southwest Airlines: Flies into Los Angeles - Ontario International Airport (ONT), making up about 21% of Crestline's arrivals. Travelers can expect an average one-way fare of around $240.
  • United: Operates flights to Los Angeles - Ontario International Airport (ONT), contributing to approximately 15% of arrivals in Crestline. The average fare for a one-way ticket is around $300, with the option for first class available on certain routes.
  • Delta: Serves Los Angeles - Ontario International Airport (ONT), accounting for about 15% of Crestline's arrivals. The average one-way fare is roughly $270, and premium cabin services may include both premium economy and first class depending on the route.
  • Frontier Airlines: Offers service to Los Angeles - Ontario International Airport (ONT), capturing around 10% of Crestline's arrivals. The average one-way fare is approximately $150, making it an affordable flight option.

Best time to fly to Crestline

The most popular months for travelers to fly to Crestline are January, March, and April, when peak temperatures in Crestline can reach up to 60.4°F in April. If you prefer quieter travel, consider September, the least busy and relatively cheaper time to visit with fewer crowds and temperatures around 76.6°F. For better deals, May usually offers the lowest average one-way fare around $196, roughly 10% cheaper than the yearly average. Looking for additional cheaper months to fly? September, August, and October offer average one-way fares of around $202, making them good options for flexible travelers.

calendar iconMonthtemperature iconTemperaturerain iconPrecipitationmostly cloudy iconCloudinesscrowd level iconDemandprice iconAverage one-way Fare
January49.5°F (9.7°C)Light RainSunnyModerately High$235
February50.2°F (10.1°C)Light RainSunnyAverage$221
March53.8°F (12.1°C)Light RainSunnyModerately High$232
April60.4°F (15.8°C)No Rain (Dry)SunnyModerately High$230
May65.7°F (18.7°C)No Rain (Dry)SunnyAverage$196
June74.1°F (23.4°C)No Rain (Dry)SunnyAverage$211
July80.6°F (27.0°C)No Rain (Dry)SunnyAverage$213
August81.0°F (27.2°C)No Rain (Dry)SunnyAverage$206
September76.6°F (24.8°C)No Rain (Dry)SunnyModerately Low$198
October65.8°F (18.8°C)No Rain (Dry)SunnyModerately Low$207
November56.3°F (13.5°C)No Rain (Dry)SunnyModerately Low$222
December48.9°F (9.4°C)Light RainSunnyAverage$246

*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 Crestline

Getting some of the best deals on flights to Crestline 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 Crestline 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 Crestline flight with Expedia. Just select your frequent flyer program and enter your program number when confirming your booking.

*For members. Select hotels.

Arriving in Crestline

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

  • Public transportation: From Los Angeles - Ontario International Airport, Panama City Seaport, a seaport, is located about 1.6 miles from the airport and is most easily reached by car, while Rancho Cucamonga Station, a train station, is situated approximately 3.7 miles away, also accessible by car.
  • Hotel transfer: Transfers offer a convenient way to reach your hotel in Crestline, with private rides that can be arranged in advance.
  • Car rental: Renting a car in Crestline is a good option if you plan to explore and sightsee beyond the city. Browse cheap car rentals in Crestline 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 around Crestline

  • Lake Arrowhead: Located 5 miles drive away from Crestline, Lake Arrowhead is a charming city perfect for outdoor enthusiasts and families alike. Visitors can enjoy picturesque scenery while exploring the beautiful Lake Arrowhead Village Lakefront, ideal for romantic strolls or beach outings. For those seeking adventure, there’s easy access to skiing and local shops. Don’t miss the Arrowhead Resort Beach for a relaxing day by the water, or the National Orange Show Events Center for various events and conferences throughout the year.
  • Running Springs: Running Springs is located 11 miles drive away from Crestline and is a haven for adventure seekers and ski lovers. This area is renowned for its ski resorts and outdoor activities, making it an excellent destination during the winter months. While there, explore Snow Valley for exhilarating slopes or take in the serene beauty of nearby lakes and parks. The University of Redlands also adds a touch of modernity to this quaint locale, providing a unique mix of educational experiences.
  • Rialto: Situated 15 miles drive away from Crestline, Rialto offers a vibrant urban experience that caters to families and business travelers. The city features recreational areas and diverse shopping options, including the popular Victoria Gardens, ideal for outdoor fun and family outings. Rialto is also home to the National Orange Show Events Center, perfect for conferences and events, and the University of California, Riverside, adding an educational dimension to your visit. Enjoy the blend of city life and family-friendly attractions here.

Tips for short-haul flights to Crestline

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, traveling with just a carry-on is often the more affordable option. Maximize space by using mini toiletries, wearing your bulkiest garments, and planning your outfits carefully. This approach also allows you to bypass the wait at baggage claim once you arrive.
  • Bring your own entertainment—many short-haul flights might not provide in-flight entertainment. To keep yourself entertained, download TV shows, movies, music, or podcasts ahead of time and consider bringing a book. Remember to fully charge your devices before you board.
  • Arrive at the airport in plenty of time—for short or domestic flights, it's advisable to arrive at least 1.5 to 2 hours before your departure. Be sure to account for 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 Crestline

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 often provide complimentary seat selection once online check-in opens, typically 24–48 hours before your flight. Some airlines may allow seat selection even earlier.
  • Arrive at the airport in plenty of time—make sure to arrive at least 3 hours before departure for international flights to accommodate check-in, security, and immigration procedures.
  • Relax at the airport—if you have additional time, take the opportunity to explore the shops, visit a coffee shop, or unwind at the gate or in a departure lounge if you have access. Airport Wi-Fi is generally free and available.
  • Adjust to the new time zone mid-flight—begin to sync your body clock by changing your watch and adapting your sleep schedule to align with your destination's time zone. Try to sleep or stay awake during the flight according to the local time at your arrival destination to help minimize jet lag.

Frequently asked questions

What month is the cheapest to fly to Crestline?
The cheapest month to fly to Crestline is September when there's less demand. Off-peak months are typically when you'll find cheap fares. To keep costs down, steer clear of flying during major holidays and school breaks.
Which US cities have the cheapest flights to Crestline?
Typically, Phoenix, Dallas and Denver have cheap flights to Crestline. Flexibility, however, is the secret to scoring yourself the best prices. Plan your getaway midweek or during the low season to keep costs down.
Which US cities fly direct to Crestline?
Pick from 17 US cities with direct flights to Crestline. When booking on Expedia, click on the "Direct flights only" box to compare nonstop options. Fly to Crestline from any of these top cities:
  • Phoenix
  • Dallas
  • Denver
  • Seattle
  • Las Vegas
How to find a cheap flight to Crestline?
Book early to maximize your chances of getting cheap flights to Crestline. Also, consider traveling during off-season months like January and February. If you jet off on a Thursday, you'll save 16% on average compared to departing on a Sunday.* Save time checking every day and create a price alert on the Expedia app. We'll send you a notification 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 Crestline?
It's possible to get great deals on last-minute departures to Crestline, especially if your plans are flexible. Consider your options for leaving from a different hub, changing your dates or selecting another airline to get a cheap flight to Crestline.
How far in advance should I book a flight to Crestline?
Find the travel dates you want and a fare that's easy on your pocket by booking your domestic flight to Crestline up to 28 days in advance. Lock in tickets two to four months ahead if you're jetting to Crestline 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 Crestline?
You can save an average of 8% if you purchase tickets on a Sunday rather than Fridays, which tend to be the priciest day to book.* When it comes to getting a cheap flight to Crestline, timing makes a difference.*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 Crestline?
There are 9 airlines that connect Crestline with 25 airports across the world. The chief gateway to this city is John Wayne Airport (SNA). Book a fare with any of these well-known airlines to Crestline:
  • American Airlines
  • Alaska Airlines
  • United Airlines
  • Delta Air Lines
Where do you fly into Crestline?
Crestline's main airport is Los Angeles - Ontario Intl. Airport (ONT). If you'd like some nearby alternatives when flying to Crestline, consider John Wayne Airport (SNA), Palm Springs Intl. Airport (PSP) or Palmdale, CA (PMD-Palmdale Regional). It's also possible to fly to Crestline through Long Beach Municipal Airport (LGB).
How far is the airport from central Crestline?
You'll be roughly 20 mi southwest of the center of Crestline after touching down at Los Angeles - Ontario Intl. Airport (ONT).
Can I save money by booking a Crestline trip package?
It's possible to save hundreds of dollars if you lock in a Crestline flight and hotel package deal on Expedia. And you'll make life easier by having all your travel plans in one place. Try bundling your flight and hotel with extras like car rentals and activities for your own customized Crestline trip.
Can I change or cancel my flight to Crestline?
If you booked your flight to Crestline within the last 24 hours, you can usually cancel or change it without fees. After that, extra charges may apply depending on the airline's terms of service. To learn more, head to our Customer Service Portal. Keep in mind that some flights are non-refundable, so you may be issued a credit toward future travel rather than a direct refund. When browsing on Expedia, check the "Changes included" or "No cancel fee" filters to compare fares with flexible change policies.

*Flight schedules are subject to change.

*Available to One Key members.

Book with confidence

Tips to find the cheapest flights to Crestline

The cheapest day to fly

Get started finding a cheap flight to Crestline 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

September is the cheapest month to fly to Crestline. 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 Crestline. 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 Crestline, 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 Crestline

The lowest price for round-trip flights to Crestline in 2026 starts from from $46, while one-way tickets start from from $23. 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 Crestline. If you have a preferred departure time or airline, you can use the handy filters to customize your search.

The cheapest airlines flying to Crestline

Frontier Airlines, Breeze Airways, United, Southwest Airlines, American Airlines are just some of the airlines that can typically offer cheap tickets to Crestline. 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 Crestline and countless more destinations worldwide.

The most affordable airports to fly into

To view the cheapest airports to fly into for Crestline, 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 Crestline. 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 Crestline 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 Crestline

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 Crestline.

Stopover savings

The cheapest tickets to Crestline are sometimes those with a stopover. Book one of these flights, and you'll change planes at an airport en route to Crestline. 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 Crestline 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 Crestline. Simply download the free Expedia app to your smart device and activate Crestline 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 Crestline. 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.

Tips to find the cheapest flights to Crestline

Travel information

Destination airport
Ontario Intl. Airport
Destination airport IATA code
ONT
Destination city name
Ontario Intl. Airport
Roundtrip price
$46

Trending flights to Crestline

Prices were available within the past 7 days and start at $23 for one-way flights and $46 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines

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