Title: $126 Cheap Flights to Diez - Expedia.com ![Altstadt, Diez, Deutschland ](https://images.trvl-media.com/place/181175/1b2b8503-8ed7-4d38-b256-76ab431a27e3.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/181175/1b2b8503-8ed7-4d38-b256-76ab431a27e3.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # $126 Cheap Flights to Diez [View $126 flight on Sat, Feb 28, 2026](https://expedia.com/Flights-Search?trip=oneway&leg1=from:CPH,to:CGN,departure:2/28/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:126.00&airProductToken=AQpkCjAIz6YBEgM5OTYY4jsglSIog7GGAzDssYYDOExAAFgBagVMSUdIVHIITEVVTEdUWDMKMAjPpgESAzI0ORiVIiDCaSjLvIYDMKq9hgM4TEABWAFqBUxJR0hUcghMRVVMR1RYNBIKCAIQARgCKgJPUxgBIgQIARABKAIoAygEMAs) - [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 [Diez Travel Guide](https://expedia.com/Diez.dx181175)[Hotels in Diez](https://expedia.com/Diez-Hotels.d181175.Travel-Guide-Hotels)[Things to do in Diez](https://expedia.com/Things-To-Do-In-Diez.d181175.Travel-Guide-Activities)[Car Rentals in Diez](https://expedia.com/Car-Rentals-In-Diez.d181175.Car-Rental-Guide)[Diez Vacation Packages](https://expedia.com/Diez.d181175.Destination-Travel-Guides) ## Popular airlines to Diez - ![](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:Diez, Rhineland-Palatinate, Germany,departure:3/2/2026TANYT&leg2=from:Diez, Rhineland-Palatinate, Germany,to:CMH,departure:3/9/2026TANYT&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_EW.svg) Eurowings [](https://www.expedia.com/Flights-Search?leg1=from:CMH,to:Diez, Rhineland-Palatinate, Germany,departure:3/2/2026TANYT&leg2=from:Diez, Rhineland-Palatinate, Germany,to:CMH,departure:3/9/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"EW"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_LX.svg) Swiss International Air Lines [](https://www.expedia.com/Flights-Search?leg1=from:CMH,to:Diez, Rhineland-Palatinate, Germany,departure:3/2/2026TANYT&leg2=from:Diez, Rhineland-Palatinate, Germany,to:CMH,departure:3/9/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"LX"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_OS.svg) Austrian Airlines [](https://www.expedia.com/Flights-Search?leg1=from:CMH,to:Diez, Rhineland-Palatinate, Germany,departure:3/2/2026TANYT&leg2=from:Diez, Rhineland-Palatinate, Germany,to:CMH,departure:3/9/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"OS"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_TK.svg) Turkish Airlines [](https://www.expedia.com/Flights-Search?leg1=from:CMH,to:Diez, Rhineland-Palatinate, Germany,departure:3/2/2026TANYT&leg2=from:Diez, Rhineland-Palatinate, Germany,to:CMH,departure:3/9/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"TK"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_PC.svg) Pegasus Airlines [](https://www.expedia.com/Flights-Search?leg1=from:CMH,to:Diez, Rhineland-Palatinate, Germany,departure:3/2/2026TANYT&leg2=from:Diez, Rhineland-Palatinate, Germany,to:CMH,departure:3/9/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"PC"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_BA.svg) British Airways [](https://www.expedia.com/Flights-Search?leg1=from:CMH,to:Diez, Rhineland-Palatinate, Germany,departure:3/2/2026TANYT&leg2=from:Diez, Rhineland-Palatinate, Germany,to:CMH,departure:3/9/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"BA"}}]) - ![](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 Diez? Prices were available within the past 7 days and start at $126 for one-way flights and $258 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Roundtrip ![Austrian Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/OS.gif) Wed, Mar 18 - Wed, Mar 25 CPH Copenhagen CGN Cologne $258 Roundtrip found 3 hours ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:CPH,to:CGN,departure:3/18/2026TANYT&leg2=from:CGN,to:CPH,departure:3/25/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:257.20&airProductToken=AQpkCjAIz6YBEgM5OTYY4jsglSIow_uHAzCs_IcDOEtAAFgBagVMSUdIVHIIS0VUTEdUVTQKMAjPpgESAzI0NRiVIiDCaSj8gYgDMNuCiAM4S0ABWAFqBUxJR0hUcghLRVRMR1RVNApkCjAIz6YBEgMyNDYYwmkglSIoyMaIAzCix4gDOEtAAFgBagVMSUdIVHIIS0VUTEdUVTQKMAjPpgESAzk5NxiVIiDiOyijyogDMIzLiAM4S0ABWAFqBUxJR0hUcghLRVRMR1RVNBIKCAIQARgCKgJPUxgBIgQIARABKAIoAygEMAs) ![Lufthansa](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/LH.gif) Wed, Mar 18 - Wed, Mar 25 CPH Copenhagen CGN Cologne $261 Roundtrip found 3 hours ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:CPH,to:CGN,departure:3/18/2026TANYT&leg2=from:CGN,to:CPH,departure:3/25/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:260.30&airProductToken=AQpyCjEIzJABEgQyNDQxGOI7IIwVKLr5hwMwmfqHAzhLQABYAWoFTElHSFRyCEtFVExHVFU0Cj0IzJABEgQxOTg2GIwVIMJpKNL7hwMwk_yHAzhLQAFYAWoFTElHSFRyCEtFVExHVFU0egoIw5gBEgQxOTg2CmQKMAjPpgESAzI0NhjCaSCVIijIxogDMKLHiAM4S0AAWAFqBUxJR0hUcghLRVRMR1RVNAowCM-mARIDOTk1GJUiIOI7KI3JiAMw9smIAzhLQAFYAWoFTElHSFRyCEtFVExHVFU0EgoIAhABGAIqAkxIGAEiBAgBEAEoAigDKAQwCw) ![Swiss International Air Lines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/LX.gif) Wed, Mar 18 - Wed, Mar 25 CPH Copenhagen CGN Cologne $437 Roundtrip found 3 hours ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:CPH,to:CGN,departure:3/18/2026TANYT&leg2=from:CGN,to:CPH,departure:3/25/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:436.40&airProductToken=AQqBAQo_CMywARIEMTI3MxjiOyC5PCjP_IcDML39hwM4VEAAWAFqB0NMQVNTSUNyCFRFVENMU1U0egoIwqgBEgQxMjczCj4IzLABEgQ0NDI0GLk8IMJpKMKCiAMwg4OIAzhUQAFYAWoHQ0xBU1NJQ3IIVEVUQ0xTVTR6CQjFrgESAzc2MwqBAQo-CMywARIENDQyNRjCaSC5PCiZxYgDMNXFiAM4U0AAWAFqB0NMQVNTSUNyCFNFVENMU1U0egkIxa4BEgM3NjIKPwjMsAESBDEyNzIYuTwg4jsoj8qIAzD9yogDOFNAAVgBagdDTEFTU0lDcghTRVRDTFNVNHoKCLKYARIEMTI3MhIKCAIQARgCKgJMWBgBIgQIARABKAIoAygEMAs) ![Air Canada](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AC.gif) Wed, Mar 18 - Wed, Apr 1 BOS Boston CGN Cologne $489 Roundtrip found 5 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:BOS,to:CGN,departure:3/18/2026TANYT&leg2=from:CGN,to:BOS,departure:4/1/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:488.23&airProductToken=AQpnCiEIwYYBEgQ4NjExGMGTASCYXSiw_ocDMIX_hwM4TEAAWAEKIAjBhgESBDkwOTgYmF0gjBUoxv-HAzD-gogDOExAAVgBCiAIwYYBEgQ5MDM1GIwVIMJpKIWEiAMwxoSIAzhMQAFYAQpECiAIzJABEgQ0MDUxGMJpIIwVKLmWiQMw-paJAzhMQABYAQogCMyQARIDNDI0GIwVIMGTASi7l4kDMLSbiQM4TEABWAESCggBEAEYASoCQUMYASIECAEQASgEMAE) ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Mon, Mar 16 - Tue, Mar 24 BOS Boston QKL Cologne $492 Roundtrip found 6 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:BOS,to:QKL,departure:3/16/2026TANYT&leg2=from:QKL,to:BOS,departure:3/24/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:491.53&airProductToken=AQpmCiAI1YIBEgM3MjEYwZMBIIgYKOflhwMwz-aHAzhMQABYAQogCNWCARIEODgyNhiIGCClBCiE6IcDMNDrhwM4TEABWAEKIAjVggESBDk2MDAYpQQg0Fooou2HAzDZ7YcDOExAAVgBCmYKIAjVggESBDk1OTkY0FogpQQotruIAzDtu4gDOExAAFgBCiAI1YIBEgQ4ODI3GKUEIIgYKOu8iAMwgsGIAzhMQAFYAQogCNWCARIDNzU1GIgYIMGTASjMw4gDMK3EiAM4TEABWAESCggBEAEYASoCVUEYASIECAEQASgEMAE) ![](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 Diez **The cheapest day to fly** Get started finding a cheap flight to Diez 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** March is the cheapest month to fly to Diez. 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 Diez. 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 Diez, 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 Diez** The lowest price for round-trip flights to Diez in 2026 starts from from $258, 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 Diez. If you have a preferred departure time or airline, you can use the handy filters to customize your search. **The cheapest airlines flying to Diez** Austrian Airlines, Lufthansa, British Airways, Swiss International Air Lines, United, Air Canada are just some of the airlines that can typically offer cheap tickets to Diez. 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 Diez and countless more destinations worldwide. **The most affordable airports to fly into** To view the cheapest airports to fly into for Diez, 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 Diez. 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 Diez 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 Diez** 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 Diez. **Stopover savings** The cheapest tickets to Diez are sometimes those with a stopover. Book one of these flights, and you'll change planes at an airport en route to Diez. 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 Diez 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 Diez. Simply download the free Expedia app to your smart device and activate Diez 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 Diez. 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 ### What month is the cheapest to fly to Diez? ### Which US cities have the cheapest flights to Diez? > - Salt Lake City (SLC) > - New Orleans (MSY) > - Syracuse (SYR) > - Charleston (CHS, CRW) > - Cleveland (CLE) > > > with prices usually starting around $237. ### Which US cities fly direct to Diez? > - New York (JFK) > - Newark (EWR) > - Washington (IAD) > - San Francisco (SFO) > - Chicago (ORD) ### How to find a cheap flight to Diez? ### Which airlines fly to Diez? > - Air Canada > - American Airlines > - British Airways > - Condor > - Delta > - Eurowings > - Lufthansa > - Ryanair > - United > - United Airlines ### Where do you fly into Diez? > - The closest major airport is Frankfurt (FRA-Frankfurt Intl.), about 44 miles from the city center, which is a hub for Lufthansa, Qatar Airways, and Emirates, with other airlines like KLM, British Airways also operating here. > - Düsseldorf (DUS-Düsseldorf Intl.) is another option, about 107 miles away, serving as a hub for Lufthansa, KLM, and Pegasus Airlines, with Hop!, Eurowings also operating here. > - Cologne (CGN-Cologne - Bonn), about 72 miles away, serving as a hub for Eurowings, Pegasus Airlines, and Lufthansa, with CL, VL also operating here. > - Frankfurt (HHN-Frankfurt - Hahn), about 59 miles away, serving as a hub for Ryanair, Air Serbia, and RK, with Fly One S.R.L., W4 also operating here. > - Dortmund (DTM), about 84 miles away, serving as a hub for Pegasus Airlines, SunExpress, and E6, with Eurowings, Condor also operating here. ### What is the cheapest airport to fly to in Diez? ### Which budget airlines fly to Diez? > - Eurowings: serves Frankfurt (FRA), Cologne (CGN), Dortmund (DTM), Duesseldorf (DUS) > - Condor: serves Frankfurt (FRA), Dortmund (DTM), Duesseldorf (DUS) > - Ryanair: serves Frankfurt (FRA), Frankfurt (HHN), Cologne (CGN) > - Pegasus Airlines: serves Frankfurt (FRA), Cologne (CGN), Dortmund (DTM), Duesseldorf (DUS) > - SunExpress: serves Frankfurt (FRA), Cologne (CGN), Dortmund (DTM), Duesseldorf (DUS) > - WestJet: serves Frankfurt (FRA), Duesseldorf (DUS) > - easyJet: serves Frankfurt (FRA), Duesseldorf (DUS) > - Vueling Airlines: flies to Duesseldorf (DUS) > - AJet: serves Frankfurt (FRA), Cologne (CGN), Duesseldorf (DUS) > - Air Cairo: serves Frankfurt (FRA), Cologne (CGN), Duesseldorf (DUS) ### What is the best month to visit Diez? ### How far in advance should I book a flight to Diez? ### What day of the week is cheapest day to buy a plane ticket to Diez? ### What is the most expensive month to fly to Diez? ### How can I track flight prices to Diez? ### How to get a cheap last-minute flight to Diez? ### Can I earn miles booking a flight to Diez with Expedia? ### Can I save money by booking a Diez trip package? ### Can I change or cancel my flight to Diez? \*Flight schedules are subject to change. __Flights to Diez information__ | Destination airport | Cologne - Bonn | | ----------------------------- | -------------- | | Destination airport IATA code | CGN | | Destination city name | Cologne | | Roundtrip price | $45 | ## Trending flights to Diez Prices were available within the past 7 days and start at $126 for one-way flights and $258 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Roundtrip ![Lufthansa](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/LH.gif) Tue, Nov 10 - Tue, Dec 8 BOS Boston QKL Cologne $478 Roundtrip found 18 hours ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:BOS,to:QKL,departure:11/10/2026TANYT&leg2=from:QKL,to:BOS,departure:12/8/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:477.53&airProductToken=AQpsCjQIzJABEgM0MjMYwZMBIKUEKIXonAMws-ucAzhMQABYAWoIRUNPTElHSFRyCExMWDc2VEJRCjQIzJABEgQzNjAwGKUEINBaKI7snAMwyeycAzhMQAFYAWoIRUNPTElHSFRyCExMWDc2VEJRCmwKNAjMkAESBDM2MDkY0FogpQQon5yfAzDVnJ8DOExAAFgBaghFQ09MSUdIVHIITExYNzZUQlEKNAjMkAESAzQyMhilBCDBkwEo3Z2fAzDCoZ8DOExAAVgBaghFQ09MSUdIVHIITExYNzZUQlESCggBEAEYASoCTEgYASIECAEQASgCKAMoBDAL) \*Available to One Key members.