Title: Colombo to Washington cheap flights from $770 (CMB to IAD) - Expedia.com ![Washington DC in Spring](https://images.trvl-media.com/place/3763/58eb1a51-e7f1-4f17-88af-21174d495e42.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/3763/58eb1a51-e7f1-4f17-88af-21174d495e42.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # $770 Cheap Flights from Colombo (CMB) to Washington (IAD) [View $770 flight on Fri, Sep 18, 2026](https://expedia.com/Flights-Search?trip=oneway&leg1=from:CMB,to:IAD,departure:9/18/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:769.13&airProductToken=AQqfAQoyCMGSARIDMjc4GIILIINZKJePmAMw-JCYAzhMQABYAWoHRUNPVkFMVXIITEwzWVhTQ00KMwjBkgESAzEwNRiDWSDEjQEopJOYAzCMm5gDOExAAVgBagdFQ09WQUxVcghMTDNZWFNDTQo0CNWCARIEMjY3NxjEjQEgiBgojqCYAzDloJgDOEtAAVgBagdFQ09WQUxVcghMTDNZWFNDTRIKCAEQARgBKgJBSRgBIgQIARABKAIoAygEMAE) ## Popular airlines from Bandaranaike Intl. Airport (CMB) to Washington Dulles Intl. Airport (IAD) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_EY.svg) Etihad Airways [](https://www.expedia.com/Flights-Search?leg1=from:CMB,to:IAD,departure:4/21/2026TANYT&leg2=from:IAD,to:CMB,departure:4/28/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"EY"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_QR.svg) Qatar Airways [](https://www.expedia.com/Flights-Search?leg1=from:CMB,to:IAD,departure:4/21/2026TANYT&leg2=from:IAD,to:CMB,departure:4/28/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"QR"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_EK.svg) Emirates [](https://www.expedia.com/Flights-Search?leg1=from:CMB,to:IAD,departure:4/21/2026TANYT&leg2=from:IAD,to:CMB,departure:4/28/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"EK"}}]) - ![](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:CMB,to:IAD,departure:4/21/2026TANYT&leg2=from:IAD,to:CMB,departure:4/28/2026TANYT&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_B6.svg) JetBlue Airways [](https://www.expedia.com/Flights-Search?leg1=from:CMB,to:IAD,departure:4/21/2026TANYT&leg2=from:IAD,to:CMB,departure:4/28/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"B6"}}]) - ![](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:CMB,to:IAD,departure:4/21/2026TANYT&leg2=from:IAD,to:CMB,departure:4/28/2026TANYT&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_CX.svg) Cathay Pacific [](https://www.expedia.com/Flights-Search?leg1=from:CMB,to:IAD,departure:4/21/2026TANYT&leg2=from:IAD,to:CMB,departure:4/28/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"CX"}}]) ## Cheap Flights from Colombo to Washington (CMB-IAD) Prices were available within the past 7 days and start at $770 for one-way flights and $1,052 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Roundtrip ![Air Canada](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AC.gif) Fri, May 15 - Sat, Nov 21 CMB Colombo IAD Washington $1,052 Roundtrip found 15 hours ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:CMB,to:IAD,departure:5/15/2026TANYT&leg2=from:IAD,to:CMB,departure:11/21/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1051.83&airProductToken=AQqjAQo1CMGGARIENjg4NxiCCyDriQEo7IONAzCUiY0DOEtAAFgBaghTVEFOREFSRHIIS1hKUUtZTkMKNAjBhgESAzg2NxjriQEgmF0ovo-NAzCAk40DOEtAAVgBaghTVEFOREFSRHIIS1hKUUtZTkMKNAjBhgESBDg3MjUYmF0giBgorJWNAzCilo0DOEtAAVgBaghTVEFOREFSRHIIS1hKUUtZTkMKngEKMgjMsAESAjczGIgYILk8KNrlnQMwv-mdAzhLQABYAWoIRUNPU0FWRVJyCEtYSlFLWU5DCjMIzLABEgMyNDIYuTwg4w0oy-qdAzDH7Z0DOEtAAVgBaghFQ09TQVZFUnIIS1hKUUtZTkMKMwjFlgESAzY1MBjjDSCCCyjL750DMMrxnQM4TEABWAFqCEVDT1NBVkVScghLWEpRS1lOQxIMCAEQARgBKgJBQzIAGAEiBAgBEAEoAigDKAQwAQ) ![Air Canada](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AC.gif) Thu, Jun 4 - Mon, Oct 26 CMB Colombo IAD Washington $1,081 Roundtrip found 3 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:CMB,to:IAD,departure:6/4/2026TANYT&leg2=from:IAD,to:CMB,departure:10/26/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1080.23&airProductToken=AQq6AQpACMGGARIENjg4NxiCCyDriQEo7OSOAzCU6o4DOEtAAFgBaghTVEFOREFSRHIIS1hKUUtZTkN6CQjVmAESAzUwMwo0CMGGARIDODY3GOuJASCYXSi-8I4DMID0jgM4S0ABWAFqCFNUQU5EQVJEcghLWEpRS1lOQwpACMGGARIEMzgxORiYXSCIGCiM9Y4DMIP2jgM4S0ABWAFqCFNUQU5EQVJEcghLWEpRS1lOQ3oKCNWCARIEMzQxNAqfAQozCMyQARIDNDE1GIgYIIwVKKvCmwMwi8abAzhLQABYAWoIRUNPU0FWRVJyCEtYSlFLWU5DCjMIzJABEgM2MzgYjBUg4w0oz8qbAzCyzZsDOEtAAVgBaghFQ09TQVZFUnIIS1hKUUtZTkMKMwjVmAESAzIyNhjjDSCCCyje1JsDMOLWmwM4UUABWAFqCEVDT1NBVkVScghLWEpRS1lOQxIKCAEQARgBKgJMSBgBIgQIARABKAIoAygEMAE) ![Air Canada](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AC.gif) Thu, Jun 4 - Mon, Oct 26 CMB Colombo IAD Washington $1,086 Roundtrip found 3 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:CMB,to:IAD,departure:6/4/2026TANYT&leg2=from:IAD,to:CMB,departure:10/26/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1085.03&airProductToken=AQq8AQpACMGGARIENjg4NxiCCyDriQEo7OSOAzCU6o4DOEtAAFgBaghTVEFOREFSRHIIS1hKUUtZTkN6CQjVmAESAzUwMwo1CMGGARIDODUzGOuJASCYzgEogvCOAzDT844DOEtAAVgBaghTVEFOREFSRHIIS1hKUUtZTkMKQQjBhgESBDM1MDQYmM4BIIgYKK30jgMwjfWOAzhLQAFYAWoIU1RBTkRBUkRyCEtYSlFLWU5DegoI1YIBEgQzNTU5Cp8BCjMIzJABEgM0MTUYiBggjBUoq8KbAzCLxpsDOEtAAFgBaghFQ09TQVZFUnIIS1hKUUtZTkMKMwjMkAESAzYzOBiMFSDjDSjPypsDMLLNmwM4S0ABWAFqCEVDT1NBVkVScghLWEpRS1lOQwozCNWYARIDMjI2GOMNIIILKN7UmwMw4tabAzhRQAFYAWoIRUNPU0FWRVJyCEtYSlFLWU5DEgoIARABGAEqAkxIGAEiBAgBEAEoAigDKAQwAQ) ![Air Canada](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AC.gif) Fri, May 15 - Sat, Nov 21 CMB Colombo IAD Washington $1,246 Roundtrip found 15 hours ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:CMB,to:IAD,departure:5/15/2026TANYT&leg2=from:IAD,to:CMB,departure:11/21/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1245.93&airProductToken=AQqjAQo1CMGGARIENjg4NxiCCyDriQEo7IONAzCUiY0DOEtAAFgBaghTVEFOREFSRHIIS1hKUUtZTkMKNAjBhgESAzg2NxjriQEgmF0ovo-NAzCAk40DOEtAAVgBaghTVEFOREFSRHIIS1hKUUtZTkMKNAjBhgESBDg3MjUYmF0giBgorJWNAzCilo0DOEtAAVgBaghTVEFOREFSRHIIS1hKUUtZTkMKowEKNAjBhgESBDg3MjQYiBggmF0o1eCdAzC-4Z0DOEtAAFgBaghTVEFOREFSRHIIS1hKUUtZTkMKNAjBhgESAzg2NBiYXSDriQEoiuWdAzCu6J0DOEtAAVgBaghTVEFOREFSRHIIS1hKUUtZTkMKNQjBhgESBDY4ODYY64kBIIILKPPqnQMw3--dAzhLQAFYAWoIU1RBTkRBUkRyCEtYSlFLWU5DEgwIAhABGAIqAkFDMgAYASIECAEQASgCKAMoBDAN) ![Etihad Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/EY.GIF) Fri, May 1 - Thu, May 7 CMB Colombo IAD Washington $1,276 Roundtrip found 5 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:CMB,to:IAD,departure:5/1/2026TANYT&leg2=from:IAD,to:CMB,departure:5/7/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1275.13&airProductToken=AQpkCjEIxbIBEgMzOTcYggsggD0otOqLAzDC7IsDOFVAAFgBagZZQkFTSUNyCFVOTjA3SDY5Ci8IxbIBEgE1GIA9IIgYKNPtiwMwufSLAzhVQAFYAWoGWUJBU0lDcghVTk4wN0g2OQpkCi8IxbIBEgE2GIgYIIA9KJ6vjAMwr7WMAzhVQABYAWoGWUJBU0lDcghVTlgwQUg2OQoxCMWyARIDMzk0GIA9IIILKLK5jAMwyruMAzhVQAFYAWoGWUJBU0lDcghVTlgwQUg2ORIKCAEQARgBKgJFWRgBIgQIARABKAIoAygEMAE) ![Turkish Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/TK.gif) Mon, Jun 15 - Mon, Sep 14 CMB Colombo IAD Washington $1,344 Roundtrip found 5 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:CMB,to:IAD,departure:6/15/2026TANYT&leg2=from:IAD,to:CMB,departure:9/14/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1343.13&airProductToken=AQpaCiwI1JYBEgM3MzEYggsgyJwBKNDdjwMw0-GPAzhMQABYAWoCUlNyBkxGMlhQWAoqCNSWARIBNxjInAEgiBgoguOPAzCW6I8DOExAAVgBagJSU3IGTEYyWFBYClwKLAjUlgESAzE4OBiIGCDInAEo8OSXAzC-6ZcDOExAAFgBagJSU3IGTEYyWFBYCiwI1JYBEgM3MzAYyJwBIIILKKzvlwMwlvOXAzhMQAFYAWoCUlNyBkxGMlhQWBIMCAEQARgBKgJUSzIAGAEiBAgBEAEoAigEKAYwAQ) ![Qatar Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/QR.gif) Mon, Apr 20 - Mon, Apr 27 CMB Colombo IAD Washington $1,377 Roundtrip found 15 hours ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:CMB,to:IAD,departure:4/20/2026TANYT&leg2=from:IAD,to:CMB,departure:4/27/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1376.53&airProductToken=AQpqCjMI0aQBEgM2NTUYggsgwzso-u2KAzCw8IoDOE9AAFgBaghFQ0xBU1NJQ3IIT0pMS1AxUkUKMwjRpAESAzcwNxjDOyCIGCi69YoDMNL8igM4T0ABWAFqCEVDTEFTU0lDcghPSkxLUDFSRQpqCjMI0aQBEgM3MDgYiBggwzsovMGLAzDSx4sDOE9AAFgBaghFQ0xBU1NJQ3IIT0pMS1AxUkUKMwjRpAESAzY1OBjDOyCCCyi7yIsDMPHKiwM4T0ABWAFqCEVDTEFTU0lDcghPSkxLUDFSRRIKCAEQARgBKgJRUhgBIgQIARABKAIoBCgGMAE) ![American Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AA.gif) Mon, Apr 20 - Mon, Apr 27 CMB Colombo IAD Washington $1,377 Roundtrip found 15 hours ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:CMB,to:IAD,departure:4/20/2026TANYT&leg2=from:IAD,to:CMB,departure:4/27/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1376.53&airProductToken=AQqAAQo-CMGCARIEODI1NRiCCyDDOyj67YoDMLDwigM4T0AAWAFqB01BSU5TRkxyCE9OWDBFQ04zegkI0aQBEgM2NTUKPgjBggESBDgxMTkYwzsgiBgouvWKAzDS_IoDOE9AAVgBagdNQUlOU0ZMcghPTlgwRUNOM3oJCNGkARIDNzA3CoABCj4IwYIBEgQ4MTIwGIgYIMM7KLzBiwMw0seLAzhPQABYAWoHTUFJTlNGTHIIT05YMEVDTjN6CQjRpAESAzcwOAo-CMGCARIEODE3NhjDOyCCCyi7yIsDMPHKiwM4T0ABWAFqB01BSU5TRkxyCE9OWDBFQ04zegkI0aQBEgM2NTgSCggBEAEYASoCQUEYASIECAEQASgCKAMoBDAL) ![Air China](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/CA.GIF) Wed, Apr 29 - Tue, May 12 CMB Colombo IAD Washington $1,623 Roundtrip found 3 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:CMB,to:IAD,departure:4/29/2026TANYT&leg2=from:IAD,to:CMB,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:1622.73&airProductToken=AQqlAQoxCMOCARIDNDI2GIILILOhASiN1IsDMNzWiwM4V0AAWAFqB0ZMRVhFQ09yBldSQ0FTNgo-CMOCARIEMzU3MBizoQEgj1EouN2LAzDT3osDOFlAAVgBagdGTEVYRUNPcgZXUkNBUzZ6CgjakAESBDkxOTYKMAjDggESAzgxNxiPUSCIGCjP5osDMOLtiwM4V0ABWAFqB0ZMRVhFQ09yBldSQ0FTNgqlAQowCMOCARIDODE4GIgYII9RKJTrjAMwi_OMAzhTQABYAWoHRkxFWEVDT3IGU1JDQVM2Cj4Iw4IBEgQzNTY5GI9RILOhASit9YwDMNz2jAM4WUABWAFqB0ZMRVhFQ09yBlNSQ0FTNnoKCNqQARIEOTE5NQoxCMOCARIDNDI1GLOhASCCCyjE-YwDMJ38jAM4U0ABWAFqB0ZMRVhFQ09yBlNSQ0FTNhIKCAEQARgBKgJDQRgBIgQIARABKAIoBCgGMAE) ![KLM](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/KL.gif) Mon, Jun 15 - Mon, Sep 14 CMB Colombo IAD Washington $1,678 Roundtrip found 5 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:CMB,to:IAD,departure:6/15/2026TANYT&leg2=from:IAD,to:CMB,departure:9/14/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1677.63&airProductToken=AQqkAQo1CMuYARIENDUyOBiCCyDhigEoseSPAzCQ5Y8DOEVAAFgBaghMSUdIVEJBR3IIRUdMME5CUkEKNQjLmAESBDIyODkY4YoBIOIwKKvmjwMwjeuPAzhFQAFYAWoITElHSFRCQUdyCEVHTDBOQlJBCjQIy5gBEgQyMTIwGOIwIIgYKM3tjwMw1fGPAzhFQAFYAWoITElHSFRCQUdyCEVHTDBOQlJBCqQBCjQIy5gBEgM2NTIYiBgggJMBKJLnlwMwz-qXAzhWQABYAWoITElHSFRCQUdyCFZHUzNOSFJBCjUIy5gBEgM4NzkYgJMBIOGKASjl65cDMKnwlwM4VkABWAFqCExJR0hUQkFHcghWR1MzTkhSQQo1CMuYARIENDcxMhjhigEgggso9_SXAzDM9ZcDOFZAAVgBaghMSUdIVEJBR3IIVkdTM05IUkESDAgBEAEYASoCS0wyABgBIgQIARABKAIoAygEMAE) ## Alternative airports near Washington Prices were available within the past 7 days. Prices and availability are subject to change. [](https://www.expedia.com/Flights-Search?leg1=from:CMB,to:DCA,departure:4/21/2026TANYT&leg2=from:DCA,to:CMB,departure:4/25/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) DCA Ronald Reagan Washington National Closest 8 min [Flights from $2,276 ](https://www.expedia.com/Flights-Search?leg1=from:CMB,to:DCA,departure:4/21/2026TANYT&leg2=from:DCA,to:CMB,departure:4/25/2026TANYT&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 Colombo (CMB-Bandaranaike Intl.) to Washington, DC (IAD-Washington Dulles Intl.) cost? ### What is the cheapest month to fly from Colombo (CMB-Bandaranaike Intl.) to Washington, DC (IAD-Washington Dulles Intl.)? ### Which airlines fly direct from Colombo (CMB-Bandaranaike Intl.) to Washington, DC (IAD-Washington Dulles Intl.)? ### What is the cheapest airline that flies from Colombo (CMB-Bandaranaike Intl.) to Washington, DC (IAD-Washington Dulles Intl.)? ### How do I find cheap flights from Colombo (CMB-Bandaranaike Intl.) to Washington, DC (IAD-Washington Dulles Intl.)? ### What is the best time to fly from Colombo (CMB-Bandaranaike Intl.) to Washington, DC (IAD-Washington Dulles Intl.)? ### What is the earliest flight from Colombo (CMB-Bandaranaike Intl.) to Washington, DC (IAD-Washington Dulles Intl.)? ### What are the most popular departure times for flights from Colombo (CMB-Bandaranaike Intl.) to Washington, DC (IAD-Washington Dulles Intl.)? ### How long does it take to fly from Colombo (CMB-Bandaranaike Intl.) to Washington, DC (IAD-Washington Dulles Intl.)? ### Can you fly business or first class from Colombo (CMB-Bandaranaike Intl.) to Washington, DC (IAD-Washington Dulles Intl.)? > - Qatar Airways > - SriLankan Airlines > - Air India > - Turkish Airlines > - Etihad Airways > - Edelweiss Air > - Cathay Pacific > - flydubai > - Air China > - Emirates ### How do I earn miles on a Colombo (CMB-Bandaranaike Intl.) to Washington, DC (IAD-Washington Dulles Intl.) flight with Expedia? ### What airports do you fly into for Washington from Bandaranaike Intl. (CMB)? ### Is it cheaper to buy a plane ticket from Colombo (CMB-Bandaranaike Intl.) to Washington, DC (IAD-Washington Dulles Intl.) at the last minute? ### Is it cheaper to book a Colombo (CMB-Bandaranaike Intl.) to Washington, DC (IAD-Washington Dulles Intl.) flight and hotel package? ### Can I cancel or change the date of my flight from Colombo (CMB-Bandaranaike Intl.) to Washington, DC (IAD-Washington Dulles Intl.)? ## Travel information | Origin airport | Bandaranaike Intl. | | ------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | Destination airport | Washington Dulles Intl. | | Airlines serving | Air Canada, Air France, American Airlines, British Airways, Cathay Pacific, Emirates, Etihad Airways, Gulf Air, JetBlue Airways, KLM, Qatar Airways, Turkish Airlines | | Roundtrip price | $1,052 | | Distance | 8933 mi | ## Book with confidence # Colombo to Washington Flights The cheapest times to fly from Colombo to Washington 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 Colombo to Washington are during the month of May. You can find some of the cheapest flights from Colombo to Washington with Expedia's search tool and vast selection of airlines. The best time to book a flight from Colombo to Washington Sunday is one of the best days to book for cheap flights from Colombo to Washington: 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 Colombo to Washington 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 Colombo to Washington in 2026\. You can also book with separate airlines for your outbound and return journeys, from $770 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 Colombo to Washington 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 Colombo to Washington 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\. 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