Title: Cheap flights from Washington to Cologne ( IAD - CGN) - Expedia.com ![](https://images.trvl-media.com/place/179998/085861b5-282e-429f-bc98-dbbeb4a66247.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/179998/085861b5-282e-429f-bc98-dbbeb4a66247.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # $397 Cheap Flights from Washington (IAD) to Cologne (CGN) [View $397 flight on Sun, Jan 10, 2027](https://expedia.com/Flights-Search?trip=oneway&leg1=from:IAD,to:CGN,departure:1/10/2027TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:396.30&airProductToken=AQqXAQoxCMGCARIENTA3NBiIGCDimgEogpSiAzDnlKIDOE9AAFgBagRNQUlOcghPTFg5QzlNNQowCMGCARIDNzYyGOKaASCMFSi5lqIDMMGaogM4T0ABWAFqBE1BSU5yCE9MWDlDOU01CjAIzJABEgQxOTg0GIwVIMJpKM6eogMwj5-iAzhLQAFYAWoETUFJTnIIT0xYOUM5TTUSCggBEAEYASoCQUEYASIECAEQASgCKAMoBDAB) ## Popular airlines from Washington Dulles Intl. Airport (IAD) to Cologne - Bonn Airport (CGN) - ![](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:IAD,to:CGN,departure:3/17/2026TANYT&leg2=from:CGN,to:IAD,departure:3/24/2026TANYT&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_AC.svg) Air Canada [](https://www.expedia.com/Flights-Search?leg1=from:IAD,to:CGN,departure:3/17/2026TANYT&leg2=from:CGN,to:IAD,departure:3/24/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AC"}}]) - ![](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:IAD,to:CGN,departure:3/17/2026TANYT&leg2=from:CGN,to:IAD,departure:3/24/2026TANYT&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_LH.svg) Lufthansa [](https://www.expedia.com/Flights-Search?leg1=from:IAD,to:CGN,departure:3/17/2026TANYT&leg2=from:CGN,to:IAD,departure:3/24/2026TANYT&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_OS.svg) Austrian Airlines [](https://www.expedia.com/Flights-Search?leg1=from:IAD,to:CGN,departure:3/17/2026TANYT&leg2=from:CGN,to:IAD,departure:3/24/2026TANYT&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_UA.svg) United [](https://www.expedia.com/Flights-Search?leg1=from:IAD,to:CGN,departure:3/17/2026TANYT&leg2=from:CGN,to:IAD,departure:3/24/2026TANYT&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_BA.svg) British Airways [](https://www.expedia.com/Flights-Search?leg1=from:IAD,to:CGN,departure:3/17/2026TANYT&leg2=from:CGN,to:IAD,departure:3/24/2026TANYT&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) ## Cheap Flights from Washington to Cologne (IAD-CGN) Prices were available within the past 7 days and start at $397 for one-way flights and $703 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Roundtrip ![Turkish Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/TK.gif) Sun, May 3 - Tue, May 12 IAD Washington CGN Cologne $703 Roundtrip found 14 hours ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:IAD,to:CGN,departure:5/3/2026TANYT&leg2=from:CGN,to:IAD,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:702.23&airProductToken=AQpDCh4I1JYBEgE4GIgYIMicASiphYwDMIaKjAM4V0AAWAEKIQjUlgESBDE2NzUYyJwBIMJpKMKKjAMwioyMAzhXQAFYAQpDCiEI1JYBEgQxNjcyGMJpIMicASi54owDMIHkjAM4V0AAWAEKHgjUlgESATcYyJwBIIgYKMLkjAMw1umMAzhXQAFYARIKCAEQARgBKgJUSxgBIgQIARABKAQwAQ) ![Turkish Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/TK.gif) Thu, Oct 1 - Mon, Oct 5 IAD Washington CGN Cologne $741 Roundtrip found 8 hours ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:IAD,to:CGN,departure:10/1/2026TANYT&leg2=from:CGN,to:IAD,departure:10/5/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:740.33&airProductToken=AQpdCiwI1JYBEgMxODgYiBggyJwBKJCkmQMw3qiZAzhXQABYAWoCUFNyBldWM1hQQwotCNSWARIEMTY3NRjInAEgwmkooq2ZAzDqrpkDOFdAAVgBagJQU3IGV1YzWFBDClsKLQjUlgESBDE2NzIYwmkgyJwBKPnMmQMwwc6ZAzhXQABYAWoCUFNyBldWM1hQQwoqCNSWARIBNxjInAEgiBgogs-ZAzCW1JkDOFdAAVgBagJQU3IGV1YzWFBDEhQIAhABGAIqAlRLMghBSVJNT0RUSxgBIgQIARABKAIoAygEMAE) ![Turkish Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/TK.gif) Sun, May 3 - Mon, May 11 IAD Washington CGN Cologne $743 Roundtrip found 14 hours ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:IAD,to:CGN,departure:5/3/2026TANYT&leg2=from:CGN,to:IAD,departure:5/11/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:742.23&airProductToken=AQpDCh4I1JYBEgE4GIgYIMicASiphYwDMIaKjAM4V0AAWAEKIQjUlgESBDE2NzUYyJwBIMJpKMKKjAMwioyMAzhXQAFYAQpDCiEI1JYBEgQxNjcyGMJpIMicASiZ14wDMOHYjAM4V0AAWAEKHgjUlgESATcYyJwBIIgYKKLZjAMwtt6MAzhXQAFYARIKCAEQARgBKgJUSxgBIgQIARABKAQwAQ) ![Turkish Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/TK.gif) Sun, Sep 13 - Sun, Sep 20 IAD Washington CGN Cologne $761 Roundtrip found 7 hours ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:IAD,to:CGN,departure:9/13/2026TANYT&leg2=from:CGN,to:IAD,departure:9/20/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:760.33&airProductToken=AQpbCioI1JYBEgE4GIgYIMicASjJ3ZcDMKbilwM4V0AAWAFqAlBTcgZXVjNYUEMKLQjUlgESBDE2NzUYyJwBIMJpKOLilwMwquSXAzhXQAFYAWoCUFNyBldWM1hQQwpdCi0I1JYBEgQxNjcyGMJpIMicASiZpJgDMOGlmAM4V0AAWAFqAlBTcgZXVjNYUEMKLAjUlgESAzE4NxjInAEgiBgo2K2YAzDnspgDOFdAAVgBagJQU3IGV1YzWFBDEhQIAhABGAIqAlRLMghBSVJNT0RUSxgBIgQIARABKAIoAygEMAE) ![Turkish Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/TK.gif) Sun, May 3 - Sat, May 16 IAD Washington CGN Cologne $763 Roundtrip found 14 hours ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:IAD,to:CGN,departure:5/3/2026TANYT&leg2=from:CGN,to:IAD,departure:5/16/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:762.23&airProductToken=AQpDCh4I1JYBEgE4GIgYIMicASiphYwDMIaKjAM4V0AAWAEKIQjUlgESBDE2NzUYyJwBIMJpKMKKjAMwioyMAzhXQAFYAQpFCiEI1JYBEgQxNjc2GMJpIMicASjGk40DMImVjQM4V0AAWAEKIAjUlgESAzE4NxjInAEgiBgo-JiNAzCHno0DOFdAAVgBEgoIARABGAEqAlRLGAEiBAgBEAEoBDAB) ![Lufthansa](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/LH.gif) Wed, Apr 15 - Wed, Apr 22 IAD Washington CGN Cologne $772 Roundtrip found 5 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:IAD,to:CGN,departure:4/15/2026TANYT&leg2=from:CGN,to:IAD,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:771.43&airProductToken=AQp3CjMIzJABEgM0MTUYiBggjBUojLuKAzD2vooDOFRAAFgBaghFQ09MSUdIVHIIVExYODZEQlEKQAjMkAESBDE5ODIYjBUgwmko0sCKAzCYwYoDOFRAAVgBaghFQ09MSUdIVHIIVExYODZEQlF6CgjDmAESBDE5ODIKdwpACMyQARIENDEwNRjCaSCMFSjGgIsDMIeBiwM4VEAAWAFqCEVDT0xJR0hUcghUTFg4NkRCUXoKCNaYARIEMTk3MwozCMyQARIDNDE0GIwVIIgYKJyEiwMwvYiLAzhUQAFYAWoIRUNPTElHSFRyCFRMWDg2REJREgoIARABGAEqAkxIGAEiBAgBEAEoAigDKAQwCw) ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Wed, Apr 22 - Wed, Apr 29 IAD Washington CGN Cologne $772 Roundtrip found 1 day ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:IAD,to:CGN,departure:4/22/2026TANYT&leg2=from:CGN,to:IAD,departure:4/29/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:771.63&airProductToken=AQp3CjMI1YIBEgMxMDgYiBggjBUoxYeLAzC5i4sDOFRAAFgBaghFQ09CQVNJQ3IIVExYNTdQQlEKQAjVggESBDkxNTcYjBUgwmkoso-LAzD4j4sDOFRAAVgBaghFQ09CQVNJQ3IIVExYNTdQQlF6CgjMkAESBDE5ODIKgwEKQAjVggESBDg5MTcYwmkgjBUoudGLAzD60YsDOFRAAFgBaghFQ09CQVNJQ3IIVExYNTdQQlF6CgjMkAESBDE5NzcKPwjVggESBDg3ODUYjBUgiBgo_NKLAzCd14sDOFRAAVgBaghFQ09CQVNJQ3IIVExYNTdQQlF6CQjMkAESAzQxNBIKCAEQARgBKgJVQRgBIgQIARABKAIoAygEMAE) ![Air Canada](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AC.gif) Wed, Apr 22 - Wed, Apr 29 IAD Washington CGN Cologne $776 Roundtrip found 1 day ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:IAD,to:CGN,departure:4/22/2026TANYT&leg2=from:CGN,to:IAD,departure:4/29/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:775.03&airProductToken=AQqwAQoxCMGGARIEODcyNhiIGCCYXSiDhIsDMOqEiwM4VEAAWAFqBUJBU0lDcghUTFg1N1BCUQo8CMGGARIEOTA5OBiYXSCMFSiIiYsDMLuMiwM4VEABWAFqBUJBU0lDcghUTFg1N1BCUXoJCMyQARIDNDc1Cj0IwYYBEgQ5MDM1GIwVIMJpKIuNiwMw0Y2LAzhUQAFYAWoFQkFTSUNyCFRMWDU3UEJRegoIzJABEgQxOTc2CoMBCkAI1YIBEgQ4OTE3GMJpIIwVKLnRiwMw-tGLAzhUQABYAWoIRUNPQkFTSUNyCFRMWDU3UEJRegoIzJABEgQxOTc3Cj8I1YIBEgQ4Nzg1GIwVIIgYKPzSiwMwndeLAzhUQAFYAWoIRUNPQkFTSUNyCFRMWDU3UEJRegkIzJABEgM0MTQSCggBEAEYASoCQUMYASIECAEQASgCKAMoBDAB) ![Lufthansa](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/LH.gif) Wed, Apr 15 - Wed, Apr 22 IAD Washington CGN Cologne $780 Roundtrip found 5 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:IAD,to:CGN,departure:4/15/2026TANYT&leg2=from:CGN,to:IAD,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:779.63&airProductToken=AQp3CjMIzJABEgM0MTUYiBggjBUojLuKAzD2vooDOFRAAFgBaghFQ09MSUdIVHIIVExYODZEQlEKQAjMkAESBDE5ODQYjBUgwmko1MGKAzCawooDOFRAAVgBaghFQ09MSUdIVHIIVExYODZEQlF6CgjDmAESBDE5ODQKpgEKPQjBhgESBDYwMzgYwmkgjBUoxoCLAzCHgYsDOFRAAFgBagVCQVNJQ3IIVExYODZEQlF6CgjWmAESBDE5NzMKMQjBhgESAzgzNxiMFSCYzgEojoKLAzCRhosDOFRAAVgBagVCQVNJQ3IIVExYODZEQlEKMgjBhgESBDg2MTYYmM4BIIgYKJ-IiwMw_YiLAzhUQAFYAWoFQkFTSUNyCFRMWDg2REJREgoIARABGAEqAkFDGAEiBAgBEAEoAigDKAQwAQ) ![Austrian Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/OS.gif) Sun, Apr 19 - Fri, May 1 IAD Washington CGN Cologne $792 Roundtrip found 3 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:IAD,to:CGN,departure:4/19/2026TANYT&leg2=from:CGN,to:IAD,departure:5/1/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:791.53&airProductToken=AQppCjIIz6YBEgI0MhiIGCCVIijl5YoDMPLpigM4VEAAWAFqCEVDT0xJR0hUcghUTFg1N1RCUQozCM-mARIDMjQ1GJUiIMJpKOD0igMwuvWKAzhUQAFYAWoIRUNPTElHSFRyCFRMWDU3VEJRCmwKNAjMkAESBDE5NzcYwmkgjBUo-eeLAzC66IsDOFRAAFgBaghFQ09CQVNJQ3IIVExYNTdQQlEKNAjVggESBDg3ODUYjBUgiBgovOmLAzDd7YsDOFRAAVgBaghFQ09CQVNJQ3IIVExYNTdQQlESDAgBEAEYASoCVUEyABgBIgQIARABKAIoAygEMAE) ![](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_) ## Alternative airports near Cologne Prices were available within the past 7 days. Prices and availability are subject to change. [](https://www.expedia.com/Flights-Search?leg1=from:IAD,to:CGN,departure:3/17/2026TANYT&leg2=from:CGN,to:IAD,departure:3/21/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) CGN Cologne - Bonn CheapestClosest 14 min [Flights from $962 ](https://www.expedia.com/Flights-Search?leg1=from:IAD,to:CGN,departure:3/17/2026TANYT&leg2=from:CGN,to:IAD,departure:3/21/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) ## Frequently asked questions ### How much does a flight from Washington, DC (IAD-Washington Dulles Intl.) to Cologne (CGN-Cologne - Bonn) cost? ### What is the cheapest month to fly from Washington, DC (IAD-Washington Dulles Intl.) to Cologne (CGN-Cologne - Bonn)? ### Which airlines fly direct from Washington, DC (IAD-Washington Dulles Intl.) to Cologne (CGN-Cologne - Bonn)? ### What is the cheapest airline that flies from Washington, DC (IAD-Washington Dulles Intl.) to Cologne (CGN-Cologne - Bonn)? ### How do I find cheap flights from Washington, DC (IAD-Washington Dulles Intl.) to Cologne (CGN-Cologne - Bonn)? ### What is the best time to fly from Washington, DC (IAD-Washington Dulles Intl.) to Cologne (CGN-Cologne - Bonn)? ### What is the earliest flight from Washington, DC (IAD-Washington Dulles Intl.) to Cologne (CGN-Cologne - Bonn)? ### What are the most popular departure times for flights from Washington, DC (IAD-Washington Dulles Intl.) to Cologne (CGN-Cologne - Bonn)? ### How long does it take to fly from Washington, DC (IAD-Washington Dulles Intl.) to Cologne (CGN-Cologne - Bonn)? ### Can you fly business or first class from Washington, DC (IAD-Washington Dulles Intl.) to Cologne (CGN-Cologne - Bonn)? > - Turkish Airlines > - Lufthansa > - United Airlines > - British Airways > - Austrian Airlines > - TAP Portugal > - Swiss International Air Lines > > > First class is available with Lufthansa. ### How do I earn miles on a Washington, DC (IAD-Washington Dulles Intl.) to Cologne (CGN-Cologne - Bonn) flight with Expedia? ### What airports do you fly into for Cologne from Washington Dulles Intl. (IAD)? ### Is it cheaper to buy a plane ticket from Washington, DC (IAD-Washington Dulles Intl.) to Cologne (CGN-Cologne - Bonn) at the last minute? ### Is it cheaper to book a Washington, DC (IAD-Washington Dulles Intl.) to Cologne (CGN-Cologne - Bonn) flight and hotel package? ### Can I cancel or change the date of my flight from Washington, DC (IAD-Washington Dulles Intl.) to Cologne (CGN-Cologne - Bonn)? ## Travel information | Origin airport | Washington Dulles Intl. | | ------------------- | ------------------------------------------------------------------------------------------------------------------ | | Destination airport | Cologne - Bonn | | Airlines serving | Air Canada, Austrian Airlines, British Airways, Lufthansa, Swiss International Air Lines, Turkish Airlines, United | | Roundtrip price | $702 | | Distance | 3986 mi | ## Book with confidence # Washington to Cologne Flights The cheapest times to fly from Washington to Cologne On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Washington to Cologne are during the month of May. You can find some of the cheapest flights from Washington to Cologne with Expedia's search tool and vast selection of airlines. The best time to book a flight from Washington to Cologne Sunday is one of the best days to book for cheap flights from Washington to Cologne: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance. How to find cheap round-trip tickets from Washington to Cologne Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Washington to Cologne in 2026\. You can also book with separate airlines for your outbound and return journeys, from $397 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference\*. This is available for a small fee, and is free to One Key Gold and Platinum tier members. Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Washington to Cologne flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps. You could also save big by booking one of Expedia's [vacation packages](https://www.expedia.com/package-deals). Bundling together your Washington to Cologne airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures. \*Terms apply. Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023\. The percentages you see are averages. \*Flight schedules are subject to change. ## Explore a world of travel with Expedia - Lodging - Flights - Packages - Cars - Other - [Family Hotels in Grengel ](https://www.expedia.com/Grengel-Cologne-Hotels-Family-Hotel.0-n6264403-0-tFamilyHotel.Travel-Guide-Filter-Hotels) - [Hotels near Wahnheide ](https://www.expedia.com/Wahnheide-Cologne-Hotels.0-n6264433-0.Travel-Guide-Filter-Hotels) - [Hotels near Eil ](https://www.expedia.com/Eil-Cologne-Hotels.0-n6264393-0.Travel-Guide-Filter-Hotels) - [Historic Hotels in Eil ](https://www.expedia.com/Eil-Cologne-Hotels-Historic-Hotel.0-n6264393-0-tHistoricHotel.Travel-Guide-Filter-Hotels) - [Hotels near Golfclub Wahn ](https://www.expedia.com/Golfclub-Wahn-Hotels.0-l6202011-0.Travel-Guide-Filter-Hotels) - [Hotels near Wahn ](https://www.expedia.com/Wahn-Cologne-Hotels.0-n6264431-0.Travel-Guide-Filter-Hotels) - [Apartments in Porz-Wahn S-Bahn ](https://www.expedia.com/Porz-Wahn-S-Bahn-Apartments.d6240486-aaApartments.Travel-Guide-Accommodation) - 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[Krewelshof ](https://www.expedia.com/Krewelshof-Bonn.d553248621532510869.Vacation-Attraction) - [Visit Ostheim ](https://www.expedia.com/Cologne-Ostheim.dx3000661265) - [Visit Westhoven ](https://www.expedia.com/Cologne-Westhoven.dx3000661271) - [Visit Brueck ](https://www.expedia.com/Cologne-Brueck.dx6264318) - [Visit Troisdorf ](https://www.expedia.com/Troisdorf.dx5204) - [Visit Langel ](https://www.expedia.com/Cologne-Langel.dx3000661257) - [Visit Rodenkirchen ](https://www.expedia.com/Cologne-Rodenkirchen.dx6003677) - [Visit Vingst ](https://www.expedia.com/Cologne-Vingst.dx6003679) - [Visit Lohmar ](https://www.expedia.com/Lohmar.dx6003689) - [Visit Niederkassel ](https://www.expedia.com/Niederkassel.dx181246) - [Visit Höhenberg ](https://www.expedia.com/Cologne-Hohenberg.dx6264413) - [Visit Poll ](https://www.expedia.com/Cologne-Poll.dx3000661262) - [Mediterana ](https://www.expedia.com/Mediterana-Cologne.d553248635962295710.Vacation-Attraction) - [Aggua Troisdorf ](https://www.expedia.com/Aggua-Troisdorf-Cologne.d6283431.Vacation-Attraction) - [Visit Marienburg ](https://www.expedia.com/Cologne-Marienburg.dx6264423) - [Visit Godorf ](https://www.expedia.com/Cologne-Godorf.dx3000661252) - [Visit Bensberg ](https://www.expedia.com/Bensberg.dx6054054) - [Visit Kalk ](https://www.expedia.com/Cologne-Kalk.dx6003671) - [Visit Bayenthal ](https://www.expedia.com/Cologne-Bayenthal.dx3000661238) - [Visit Holweide ](https://www.expedia.com/Cologne-Holweide.dx6003670) - [Car rentals near Porz ](https://www.expedia.com/Car-Rentals-In-Porz.d6003676.Car-Rental-Guide) - [Car rentals near Weiss ](https://www.expedia.com/Car-Rentals-In-Weiss.d3000661240.Car-Rental-Guide) - [Car rentals near Roesrath ](https://www.expedia.com/Car-Rentals-In-Roesrath.d6130213.Car-Rental-Guide) - [Car rentals near Ostheim ](https://www.expedia.com/Car-Rentals-In-Ostheim.d3000661265.Car-Rental-Guide) - [Car rentals near Troisdorf ](https://www.expedia.com/Car-Rentals-In-Troisdorf.d5204.Car-Rental-Guide) - [Car rentals near Langel ](https://www.expedia.com/Car-Rentals-In-Langel.d3000661257.Car-Rental-Guide) - [Car rentals near Lohmar ](https://www.expedia.com/Car-Rentals-In-Lohmar.d6003689.Car-Rental-Guide) - [Car rentals near Poll ](https://www.expedia.com/Car-Rentals-In-Poll.d3000661262.Car-Rental-Guide) - [Avis Rental Cars in Poll ](https://www.expedia.com/Avis-Car-Rentals-In-Poll.d3000661262-c41.Car-Rental-Guide-Suppliers) - [Europcar Rental Cars in Godorf ](https://www.expedia.com/Europcar-Car-Rentals-In-Godorf.d3000661252-c14.Car-Rental-Guide-Suppliers) - [Car rentals near Birken ](https://www.expedia.com/Car-Rentals-In-Birken.d553248635975875017.Car-Rental-Guide) - [Things to do in Roesrath ](https://www.expedia.com/Things-To-Do-In-Roesrath.d6130213.Travel-Guide-Activities) \*Available to One Key members.