Title: $126 Cheap Flights to Princeton, IA - Expedia.com ![Default HTG hotel image](https://a.travel-assets.com/travel-assets-manager/fallback-images-brand/bex_flights_v2.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://a.travel-assets.com/travel-assets-manager/fallback-images-brand/bex_flights_v2.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # $126 Cheap Flights to Princeton, IA [View $126 flight on Tue, May 12, 2026](https://expedia.com/Flights-Search?trip=oneway&leg1=from:SAN,to:MLI,departure:5/12/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:125.20&airProductToken=AQpmCjEIwYIBEgQyNzMzGJJoIK4cKPTojAMw--qMAzhCQABYAWoFQkFTSUNyCE9WQVdVU0JWCjEIwYIBEgQ0OTY0GK4cIOxCKMDrjAMwhuyMAzhCQAFYAWoFQkFTSUNyCE9WQVdVU0JWEgwIARABGAEqAkFBMgAYASIECAEQASgCKAMoBDAL) - [Roundtrip](?flightType=roundtrip) - [One-way](?flightType=oneway) - [Multi-city](?flightType=multicity) ### Travelers Adults ChildrenAges 2 to 17 InfantsYounger than 2 EconomyPremium economyBusiness classFirst class Leaving from Going to Departing Returning Add a place to stay Add a car Direct flights only [Hotels in Princeton](https://expedia.com/Princeton-Hotels.d3000437311.Travel-Guide-Hotels)[Car Rentals in Princeton](https://expedia.com/Car-Rentals-In-Princeton.d3000437311.Car-Rental-Guide)[Princeton Vacation Packages](https://expedia.com/Princeton.d3000437311.Destination-Travel-Guides) ## Popular airlines to Princeton - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AA.svg) American Airlines [](https://www.expedia.com/Flights-Search?leg1=from:CMH,to:Princeton, Iowa, United States of America,departure:2/27/2026TANYT&leg2=from:Princeton, Iowa, United States of America,to:CMH,departure:3/6/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AA"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_DL.svg) Delta [](https://www.expedia.com/Flights-Search?leg1=from:CMH,to:Princeton, Iowa, United States of America,departure:2/27/2026TANYT&leg2=from:Princeton, Iowa, United States of America,to:CMH,departure:3/6/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"DL"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_UA.svg) United [](https://www.expedia.com/Flights-Search?leg1=from:CMH,to:Princeton, Iowa, United States of America,departure:2/27/2026TANYT&leg2=from:Princeton, Iowa, United States of America,to:CMH,departure:3/6/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"UA"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AS.svg) Alaska Airlines [](https://www.expedia.com/Flights-Search?leg1=from:CMH,to:Princeton, Iowa, United States of America,departure:2/27/2026TANYT&leg2=from:Princeton, Iowa, United States of America,to:CMH,departure:3/6/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AS"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_LH.svg) Lufthansa [](https://www.expedia.com/Flights-Search?leg1=from:CMH,to:Princeton, Iowa, United States of America,departure:2/27/2026TANYT&leg2=from:Princeton, Iowa, United States of America,to:CMH,departure:3/6/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"LH"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_KL.svg) KLM [](https://www.expedia.com/Flights-Search?leg1=from:CMH,to:Princeton, Iowa, United States of America,departure:2/27/2026TANYT&leg2=from:Princeton, Iowa, United States of America,to:CMH,departure:3/6/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"KL"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AF.svg) Air France [](https://www.expedia.com/Flights-Search?leg1=from:CMH,to:Princeton, Iowa, United States of America,departure:2/27/2026TANYT&leg2=from:Princeton, Iowa, United States of America,to:CMH,departure:3/6/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AF"}}]) - ![](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__notification.svg) ### Be in the know Get alerts if flight prices drop or rise\* - ![](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__deals.svg) ### Book smarter Save up to 30% on select hotels after you book a flight\* - ![](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__trophy.svg) ### Earn twice Earn your airline miles on top of our OneKeyCash [Learn about One Key](https://www.expedia.com/welcome-one-key) ## How much is the cheapest flight to Princeton? Prices were available within the past 7 days and start at $126 for one-way flights and $179 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Roundtrip ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Fri, Jun 12 - Sun, Jun 14 ORD Chicago MLI Moline $179 Roundtrip just found [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:ORD,to:MLI,departure:6/12/2026TANYT&leg2=from:MLI,to:ORD,departure:6/14/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:178.80&airProductToken=AQo4CjYI1YIBEgQ1NDQ3GK4cIOxCKLXFjwMw_MWPAzhOQABYAWoKMV9iYXNpY2Vjb3IIS0ZBMkFEQk4KOAo2CNWCARIENDYxOBjsQiCuHCjz2o8DMLzbjwM4TkAAWAFqCjFfYmFzaWNlY29yCEtGQTJBREJOEgoIARABGAEqAlVBGAEiBAgBEAEoAigDKAQwCw) ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Fri, Jul 24 - Wed, Jul 29 ORD Chicago MLI Moline $185 Roundtrip found 1 day ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:ORD,to:MLI,departure:7/24/2026TANYT&leg2=from:MLI,to:ORD,departure:7/29/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:184.17&airProductToken=AQo4CjYI1YIBEgQ1NTM5GK4cIOxCKOGgkwMwq6GTAzhOQABYAWoKMV9iYXNpY2Vjb3IIS0ZBMkFEQk4KOAo2CNWCARIENTQ0NxjsQiCuHCjr15MDMLnYkwM4TkAAWAFqCjFfYmFzaWNlY29yCEtGQTJBREJOEgoIARABGAEqAlVBGAEiBAgBEAEoAigDKAQwCw) ![American Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AA.gif) Wed, Mar 4 - Sun, Mar 8 ORD Chicago MLI Moline $194 Roundtrip found 4 hours ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:ORD,to:MLI,departure:3/4/2026TANYT&leg2=from:MLI,to:ORD,departure:3/8/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:193.80&airProductToken=AQozCjEIwYIBEgQ2MjMzGK4cIOxCKOvehgMwqd-GAzhCQABYAWoFQkFTSUNyCE9VRkhaTkJYCjMKMQjBggESBDQ5NTkY7EIgrhwoyY6HAzCXj4cDOEJAAFgBagVCQVNJQ3IIT1ZGSFpOQlgSCggBEAEYASoCQUEYASIECAEQASgCKAMoBDAL) ![Delta](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/DL.gif) Tue, Apr 28 - Tue, May 12 HOU Houston MLI Moline $203 Roundtrip found 17 hours ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:HOU,to:MLI,departure:4/28/2026TANYT&leg2=from:MLI,to:HOU,departure:5/12/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:202.41&airProductToken=AQpFCiEIxJgBEgQyMzgxGMejASDgXCi_y4sDML_MiwM4RUAAWAEKIAjEmAESBDQ5NTAY4Fwg7EIo-cyLAzD3zYsDOEVAAVgBCkUKIAjEmAESBDQ5NTgY7EIg4Fwo-OiMAzDx6YwDOEVAAFgBCiEIxJgBEgQyMDUxGOBcIMejASjV6owDMNjrjAM4RUABWAESCggBEAEYASoCREwYASIECAEQASgEMAE) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Sat, Apr 18 - Wed, Apr 22 SAN San Diego MLI Moline $341 Roundtrip found 3 hours ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:SAN,to:MLI,departure:4/18/2026TANYT&leg2=from:MLI,to:SAN,departure:4/22/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:340.39&airProductToken=AQp0CjgIwaYBEgQxNDc4GJJoIK4cKNnZigMw4tuKAzhPQABYAWoMUEFSVE5FUiBNQUlOcghPVkFXVVNNNQo4CMGmARIENDE1NxiuHCDsQijA3YoDMIbeigM4R0ABWAFqDFBBUlRORVIgTUFJTnIIT1ZBV1VTTTUKdAo4CMGmARIENjgxORjsQiCuHCjvhYsDML-GiwM4R0AAWAFqDFBBUlRORVIgTUFJTnIIT1ZBV1VTTTUKOAjBpgESBDE0NDcYrhwgkmgopIeLAzC7iYsDOE9AAVgBagxQQVJUTkVSIE1BSU5yCE9WQVdVU001EgoIARABGAEqAkFTGAEiBAgBEAEoAigDKAQwDQ) ## Alternative airports near Princeton Prices were available within the past 7 days. Prices and availability are subject to change. [](https://www.expedia.com/Flights-Search?leg1=from:CMH,to:MLI,departure:2/27/2026TANYT&leg2=from:MLI,to:CMH,departure:3/8/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) MLI Quad City Intl. Cheapest 32 min [Flights from $314 ](https://www.expedia.com/Flights-Search?leg1=from:CMH,to:MLI,departure:2/27/2026TANYT&leg2=from:MLI,to:CMH,departure:3/8/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) ![](https://forever.travel-assets.com/flex/flexmanager/images/2026/02/06/expedia-sale-2026-desktop-us-ca.jpg?impolicy=fcrop&w=1400&h=600&q=mediumHigh) ## The Annual Vacation Sale Members save up to 40% on hotels and homes. Plan this year’s big trip and save. [Book now](https://expedia.com/deals?rfrr=FTG_SPRING_PROMO_) ## 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** June 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 $179, while one-way tickets start from from $126\. 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** American Airlines, Delta, United, Alaska Airlines 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](https://www.expedia.com/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. ## Frequently asked questions ### Where can I learn more about changing or canceling my flight to Princeton? ### How do I find cheap flights to Princeton that have flexible change policies? ### What is the name of Princeton's airport? ### How many airlines fly to Princeton? ### How many nonstop flights are there to Princeton? ### Where are the most popular flights to Princeton departing from? ### How long is the flight to Princeton Airport? ### How to book the cheapest flight to Princeton? ### How to survive the flight to Princeton? > - Firstly, and most importantly, pack in your passport, important documents, credit cards and medications. Next, you'll need some in-flight entertainment to help pass the time. A juicy novel and a laptop crammed with your favorite movies are some fantastic options. If you intend to catch more than just forty winks, a neck pillow and a pair of noise-canceling headphones will also come in handy. Finally, leave some space for a toothbrush and some cleansing wipes to ensure you arrive at your destination feeling fresh and raring to go. > > > Do not pack the following items in your hand luggage: > > > - Check carefully that you don't have a Swiss Army knife hiding in the bottom of your carry-on luggage. Other prohibited items include flammable or explosive substances, such as fuel and fireworks, and gels and liquids in containers larger than 3.4 ounces (100 milliliters). > > > What to wear on a flight: > > > - Comfort should be your main priority when picking what to wear on board. Consider your choice of footwear carefully too, as swelling of the feet and ankles are a common side effect of flying. Slightly roomy, flat shoes are your best bet. > - The result of lengthy periods of inactivity, DVT (deep vein thrombosis) is a serious condition that can affect passengers on long-haul flights. The great news is there are ways to reduce your risk of developing it. Keep your fluids up, get up and wander the aisles as often as possible and wear compression tights or socks. ### How to get through airport security fast when flying to Princeton? > - Be sure to have your ID and boarding pass easily accessible. They're the first things you'll be asked for by security. > - Next up, both you and your hand luggage will be X-rayed. To make the process quick and painless, remove anything that is likely to trigger the alarm. Items such as your belt, coat and earphones will be required to go through the machine. > - All electronic devices, including your laptop and phone, must also be separately scanned. > - Any gels or liquids, such as shampoo or hairspray, that you want to take on board need to be in containers no larger than 3.4 ounces (100 milliliters). Also, everything must fit inside a quart-size (one liter), zip-lock bag. > - Choosing your footwear wisely can save you a few precious minutes. Boots and heavy shoes are often required to be removed and separately scanned. Slip-on shoes are usually not. > - Sharp items like knives are prohibited in the cabin. They'll be seized at security, so pack them safely away in your checked bags. \*Flight schedules are subject to change. __Flights to Princeton information__ | Destination airport | Quad City Intl. | | ----------------------------- | --------------- | | Destination airport IATA code | MLI | | Destination city name | Moline | | Roundtrip price | $179 | ## Trending flights to Princeton Prices were available within the past 7 days and start at $126 for one-way flights and $179 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Roundtrip ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Fri, Jun 12 - Sun, Jun 14 ORD Chicago MLI Moline $179 Roundtrip just found [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:ORD,to:MLI,departure:6/12/2026TANYT&leg2=from:MLI,to:ORD,departure:6/14/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:178.80&airProductToken=AQo4CjYI1YIBEgQ1NDQ3GK4cIOxCKLXFjwMw_MWPAzhOQABYAWoKMV9iYXNpY2Vjb3IIS0ZBMkFEQk4KOAo2CNWCARIENDYxOBjsQiCuHCjz2o8DMLzbjwM4TkAAWAFqCjFfYmFzaWNlY29yCEtGQTJBREJOEgoIARABGAEqAlVBGAEiBAgBEAEoAigDKAQwCw) \*Available to One Key members.