A red covered bridge over a calm river, surrounded by lush greenery and trees.

$33 Cheap Flights to Princeton, IL

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Popular airlines to Princeton

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Today's featured flight deals to Princeton

NonstopCarry-on includedLower price than typical

How much is the cheapest flight to Princeton?

Prices were available within the past 7 days and start at $33 for one-way flights and $66 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

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American Airlines
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Delta

What you need to know for your flight to Princeton

Flights to Princeton at a glance

Traveling to Princeton is easy, with a range of airlines providing various flight schedules. Consider journey times and select from options, including direct flights, that best match your itinerary as you plan to discover the city's renowned attractions and unique neighborhoods.

  • Major airports near Princeton: Quad City International Airport (MLI), Greater Peoria Regional Airport (PIA)
  • Closest (typical) airport to Princeton: Greater Peoria Regional Airport, PIA (around 50 miles)
  • Flights per week: 1,550+ flights arriving across Princeton airports
  • Number of airlines that fly to Princeton: around 5+ carriers

Popular airports near Princeton

Princeton is a charming city perfect for outdoor enthusiasts and families seeking adventure and scenic beauty. Visitors are drawn here for a mix of experiences, including romance and family fun. The city is conveniently accessible from two major airports nearby, making travel planning straightforward.

  • Quad City International Airport (MLI): Situated in Rock Island County, Illinois, approximately 54 miles from Princeton, this airport offers a mix of domestic and international flights, linking travelers to over 100 domestic cities and more than 10 international locations. Passengers can opt for enhanced comfort by upgrading to premium economy or first-class seating, depending on the airline and specific routes. Major airlines operating here include American Airlines, United, and Delta.
  • Greater Peoria Regional Airport (PIA): Found in Peoria County, Illinois, about 50 miles from Princeton, this airport provides both domestic and international services, connecting to around 85 domestic cities and 4 international destinations. For those seeking additional comfort, there's an option to upgrade to first-class seating based on the airlines and routes. Key carriers at this airport are American Airlines and United.

Top routes to Princeton

  • Denver (DEN) to Princeton (MLI/PIA), with one-way tickets available from around $100
  • Houston (IAH/HOU) to Princeton (MLI/PIA), with one-way flight options from around $100
  • Orlando (MCO) to Princeton (MLI/PIA), with one-way airfare from around $100
  • New York (JFK/LGA) to Princeton (MLI/PIA), with one-way fares starting at around $100
  • Dallas (DFW) to Princeton (MLI/PIA), with one-way tickets available from around $130

Cheapest routes to Princeton

  • Chicago (ORD) to Princeton (MLI/PIA), with affordable one-way prices from around $90
  • Houston (IAH/HOU) to Princeton (MLI/PIA), with low-cost one-way tickets from around $100
  • Orlando (MCO) to Princeton (MLI/PIA), with affordable one-way prices from around $100
  • New York (JFK/LGA) to Princeton (MLI/PIA), with budget one-way fares from around $100
  • Austin (AUS) to Princeton (MLI/PIA), with low one-way fares from around $100

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

Top airlines with flights to Princeton

  • American Airlines: Operating flights to both Quad City International Airport (MLI) and Greater Peoria Regional Airport (PIA), this airline represents roughly 53% of arrivals in Princeton. Expect an average one-way fare of about $250, with premium service options that may include first class, depending on the specific route.
  • United: With flights arriving at Quad City International Airport (MLI) and Greater Peoria Regional Airport (PIA), United is responsible for approximately 38% of Princeton's incoming flights. The average fare for a one-way ticket is around $260, and premium service may feature first class based on the route taken.
  • Delta: This airline serves Quad City International Airport (MLI) and accounts for nearly 8% of arrivals to Princeton. Travelers can expect an average one-way fare of about $270, with premium cabin choices possibly including premium economy and first class, depending on the route.
  • Aeromexico: Providing flights to Quad City International Airport (MLI), Aeromexico offers an average one-way fare of approximately $380, catering to travelers seeking options to Princeton.
  • Alaska Airlines: This airline operates flights to Quad City International Airport (MLI) as well, with an average one-way fare around $400, making it a choice for those heading to Princeton.

Best time to fly to Princeton

The most popular months for travelers to fly to Princeton are January, March, and April, when peak temperatures in Princeton can reach up to 49.8°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 65.8°F. For better deals, May usually offers the lowest average one-way fare around $241, roughly 10% cheaper than the yearly average. Looking for additional cheaper months to fly? July, August, and September offer average one-way fares of around $254, making them good options for flexible travelers.

calendar iconMonthtemperature iconTemperaturerain iconPrecipitationmostly cloudy iconCloudinesscrowd level iconDemandprice iconAverage one-way Fare
January23.0°F (-5.0°C)Light RainMostly CloudySlightly High$287
February25.7°F (-3.5°C)Light RainMostly CloudyAverage$269
March39.4°F (4.1°C)Light RainMostly CloudySlightly High$305
April49.8°F (9.9°C)Light RainMostly SunnySlightly High$269
May61.5°F (16.4°C)Light RainMostly SunnyAverage$241
June70.5°F (21.4°C)Light RainMostly SunnyAverage$268
July73.2°F (22.9°C)Light RainMostly SunnyAverage$251
August72.0°F (22.2°C)Light RainMostly SunnyAverage$254
September65.8°F (18.8°C)Light RainMostly SunnySlightly Low$258
October53.4°F (11.9°C)Light RainMostly SunnyAverage$259
November40.5°F (4.7°C)Light RainMostly SunnySlightly Low$275
December30.7°F (-0.7°C)Light RainMostly CloudySlightly Low$283

*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 Princeton

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

*For members. Select hotels.

Arriving in Princeton

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

  • Public transportation: From Quad City International Airport, Centre Station, a bus station, is located about 5.6 miles away by car, while the Celebration River Cruise Dock, a cruise terminal, is situated approximately 5.8 miles from the airport, also accessible by car.
  • Hotel transfer: Transfers offer a convenient way to reach your hotel in Princeton, with private rides that can be arranged in advance.
  • Car rental: Renting a car in Princeton is a good option if you plan to explore and sightsee beyond the city. Browse cheap car rentals in Princeton 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 Princeton

  • Putnam: Nestled 15 miles drive away from Princeton, Putnam is an ideal destination for those seeking outdoor adventures and stunning scenery. Visitors can immerse themselves in nature at the nearby Starved Rock State Park, where hiking trails and breathtaking views abound. For family-friendly fun, the Bureau County Fairgrounds offers a variety of events throughout the year. Additionally, the Soldiers and Sailors Memorial provides a cultural touchstone, honoring local history amidst the area's natural beauty. Whether you're camping or exploring recreational areas, Putnam invites you to connect with the great outdoors.
  • Dover: Located 6 miles drive away from Princeton, Dover is a charming city steeped in culture and history. Travelers can delve into educational experiences at the historic college university, which is a key landmark in the area. The Bureau County Fairgrounds is also a popular spot for family-oriented activities and events, while the Hegeler Carus Mansion showcases exquisite architecture and local heritage. Dover's rich cultural tapestry makes it an enriching stop for those looking to explore the area's educational and historical offerings.
  • Tiskilwa: Found 7 miles drive away from Princeton, Tiskilwa offers visitors a blend of outdoor adventure and scenic beauty. Nature enthusiasts will appreciate the access to nearby lakes and forests, perfect for hiking and camping adventures. The Bureau County Fairgrounds provides a lively atmosphere for family gatherings and community events, while the Soldiers and Sailors Memorial adds a cultural dimension to your visit. Tiskilwa is a fantastic choice for travelers eager to experience the great outdoors and embrace the area's picturesque landscapes.

Tips for short-haul flights to Princeton

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 coordinating your outfits wisely. This also allows you to bypass the wait at baggage claim upon arrival.
  • Bring your own entertainment—many short-haul flights may lack 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. Make sure to fully charge your devices 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 traffic and security checkpoints.
  • Bring your own snacks and water—pack some snacks and a reusable water bottle to stay hydrated and save money while at the airport.

Tips for long-haul flights to Princeton

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 allow free seat selection once online check-in opens, typically 24–48 hours prior to your flight. Some airlines may provide the option to select seats even earlier.
  • Arrive at the airport in plenty of time—make sure to arrive at the airport at least 3 hours before your departure for international flights. This will give you ample time for check-in, security procedures, and immigration.
  • 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 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 modifying your sleep schedule to reflect your destination's time zone. Try to sleep or stay awake during the flight based on the local time at your arrival location to help minimize jet lag.

Frequently asked questions

What month is the cheapest to fly to Princeton?
The cheapest month to fly to Princeton is September when demand is low. Off-peak months are usually when you'll find cheap flights. To keep costs down, steer clear of flying during school breaks and public holidays.
Which US cities have the cheapest flights to Princeton?
Usually, New York, Washington and Dallas offer cheap flights to Princeton. However, flexibility is the secret to scoring the lowest fares. Head off midweek or during the off-peak season to keep costs as low as possible.
Which US cities fly direct to Princeton?
Choose from 150 US destinations that have direct flights to Princeton. When booking on Expedia, check the "Direct flights only" filter to compare nonstop options. Fly to Princeton from any of these cities:
  • New York
  • Washington
  • Dallas
  • Boston
  • Phoenix
How to find a cheap flight to Princeton?
To lock in cheap flights to Princeton, book early or travel during the off-peak months of November and December. Want another helpful tip? Take off on a Thursday and save around 16% on average compared to traveling on a Sunday.* Set a price alert on the Expedia app and we'll get in touch as soon as your fares drop.*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 Princeton?
You can find awesome deals on last-minute departures to Princeton, especially if your travel arrangements are flexible. Think about jetting out of a different airport, changing your dates or selecting an alternative airline to get a cheap flight to Princeton.
How far in advance should I book a flight to Princeton?
To nab some of the best deals on domestic journeys, book your flight to Princeton 28 days ahead of your travel dates. For international flights, it's between two and four months in advance. This gives you a better chance of getting your preferred departure dates and seats.**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 Princeton?
You can save an average of 8% if you purchase plane tickets on a Sunday instead of Fridays, which tend to be the most expensive day to book.* When it comes to scoring a cheap flight to Princeton, it's all about having good 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 Princeton?
Two of the top airlines to Princeton are United Airlines and American Airlines. Altogether, 2 airlines connect Princeton to 3 airports across the globe. Greater Peoria Regional Airport (PIA) is the chief arrival point in this destination.
Where do you fly into Princeton?
When you're flying to Princeton, the main airport to touch down at is Greater Peoria Regional Airport (PIA). You can also head for nearby hubs like Rockford, IL (RFD-Greater Rockford), Peru, IL (VYS-Illinois Valley Regional) or Sterling, IL (SQI-Whiteside County). Another great option to consider when you fly to Princeton is Clinton, IA (CWI-Clinton Municipal).
How far is the airport from central Princeton?
Jetting into Greater Peoria Regional Airport (PIA) puts you about 50 mi south of central Princeton.
Can I save money by booking a Princeton trip package?
You could potentially save hundreds of dollars if you choose a Princeton flight and hotel package deal on Expedia. And you'll make life easier by having all your travel plans in the same place. Try bundling your flight and hotel with extras like tours and car rentals for your own customized Princeton escape.
Can I change or cancel my flight to Princeton?
You can typically change or cancel your flight to Princeton within 24 hours of booking. However, be mindful that some flights are non-refundable. In those cases, you may receive a credit toward future flights in place of a direct refund. Make sure you check the airline's terms of service in your itinerary for specific details. Use Expedia's "No cancel fee" or "Changes included" filters during your search to secure cheap flights to Princeton with flexible change policies. To learn more, head to our Customer Service Portal.

*Flight schedules are subject to change.

*Available to One Key members.

Book with confidence

Tips to find the cheapest flights to Princeton

The cheapest day to fly

Get started finding a cheap flight to Princeton 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 Princeton. 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 Princeton. 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 Princeton, 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 Princeton

The lowest price for round-trip flights to Princeton in 2026 starts from from $66, while one-way tickets start from from $33. 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 Princeton. If you have a preferred departure time or airline, you can use the handy filters to customize your search.

The cheapest airlines flying to Princeton

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

The most affordable airports to fly into

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

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 Princeton.

Stopover savings

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

Travel information

Destination airport
O'Hare Intl.
Destination airport IATA code
ORD
Destination city name
Chicago
Roundtrip price
$66

Trending flights to Princeton

Prices were available within the past 7 days and start at $33 for one-way flights and $66 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

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