--- title: "Denver to Kirkwall cheap flights from $961 (DEN to KOI) - Expedia" description: "Cheap Flights from Denver (DEN) to Kirkwall (KOI) start at $961 for one-way and for round trip. Earn your airline miles on top of our rewards!" canonical: "https://www.expedia.com/lp/flights/den/koi/denver-to-kirkwall" language: en-US market: US currency: USD prices_as_of: 2026-11-14T20:22:32Z --- # $961 Cheap Flights from Denver (DEN) to Kirkwall (KOI) ![A narrow stone alley with a green door, white-framed windows, and red shutters.](https://images.trvl-media.com/place/1883/eb3646ff-f1dc-4fae-92c0-8a63d1318748.jpg?impolicy=fcrop&w=1200&h=500&q=medium) [View $961 flight on Sat, Dec 12, 2026](https://www.expedia.com/Flights-Search?leg1=from:DEN,to:KOI,departure:12/12/2026TANYT&trip=oneway&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:960.20&airProductToken=AQqsAQovCMKCARIDMjE4GINpIOuJASih0Z8DMMbVnwM4VkAAWAFqA0JBR3IIVkxXMEM5TTUKPAjCggESBDg3MTYYy8ABIORAKJzZnwMw59mfAzhWQAFYAWoDQkFHcghWTFcwQzlNNXoKCMOUARIEODcxNgo7CMKCARIENDA2MRjkQCDKQyja358DMKXgnwM4VkABWAFqA0JBR3IIVkxXMEM5TTV6CgjMmgESBDQwNjESCggBEAEYASoCQkEYASIECAEQASgCKAMwDQ) ## Popular airlines from Denver Intl. Airport (DEN) to Kirkwall (KOI) [American Airlines](https://www.expedia.com/Flights-Search?leg1=from:DEN,to:KOI,departure:11/28/2026TANYT&leg2=from:KOI,to:DEN,departure:12/5/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AA"}}]) [United](https://www.expedia.com/Flights-Search?leg1=from:DEN,to:KOI,departure:11/28/2026TANYT&leg2=from:KOI,to:DEN,departure:12/5/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"UA"}}]) [Southwest Airlines](https://www.expedia.com/Flights-Search?leg1=from:DEN,to:KOI,departure:11/28/2026TANYT&leg2=from:KOI,to:DEN,departure:12/5/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"WN"}}]) [Delta](https://www.expedia.com/Flights-Search?leg1=from:DEN,to:KOI,departure:11/28/2026TANYT&leg2=from:KOI,to:DEN,departure:12/5/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"DL"}}]) [Frontier Airlines](https://www.expedia.com/Flights-Search?leg1=from:DEN,to:KOI,departure:11/28/2026TANYT&leg2=from:KOI,to:DEN,departure:12/5/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"F9"}}]) [JetBlue Airways](https://www.expedia.com/Flights-Search?leg1=from:DEN,to:KOI,departure:11/28/2026TANYT&leg2=from:KOI,to:DEN,departure:12/5/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"B6"}}]) [Alaska Airlines](https://www.expedia.com/Flights-Search?leg1=from:DEN,to:KOI,departure:11/28/2026TANYT&leg2=from:KOI,to:DEN,departure:12/5/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AS"}}]) ### Be in the know Get alerts if flight prices drop or rise\* ### Book smarter Save up to 30% on select hotels after you book a flight\* ### Earn twice Earn your airline miles on top of our OneKeyCash [Learn about One Key](https://www.expedia.com/welcome-one-key) Find the cheapest flights on Expedia from (DEN) to (KOI). Flight ticket prices change frequently based on availability and demand. We send price‑drop alerts to make air travel simple and flexible. The lowest one-way fare found on Expedia for this route in the past 7 days starts at $961 for travel on December 12, 2026. ## Cheap Flights from Denver to Kirkwall (DEN-KOI) Prices were available within the past 7 days and start at $961 for one-way flights and $1,858 for roundtrip, for the period specified. Prices and availability are subject to change. All deals One way Roundtrip [Select United flight, departing Fri, May 21 from Denver to Kirkwall, returning Wed, May 26, priced at $1,858 Found 3 hours ago](https://www.expedia.com/Flights-Search?leg1=from:DEN,to:KOI,departure:5/21/2027TANYT&leg2=from:KOI,to:DEN,departure:5/26/2027TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:1857.18&airProductToken=AQqfAQo0CNWCARIEMjQ3MBiDaSDEjQEom9mtAzD32q0DOFZAAFgBagdFQ09OT01ZcghWSFY5MFROVgozCNWCARIDMjMwGMSNASDmAijH5a0DMOborQM4VkABWAFqB0VDT05PTVlyCFZIVjkwVE5WCjIIzJoBEgM0MzQY5gIgykMoxuytAzCR7a0DOFVAAVgBagdFQ09OT01ZcghWSFY5MFROVgqcAQoyCMyaARIDMzkyGMpDIORAKPGJrgMwvIquAzhaQABYAWoHRUNPTk9NWXIITEtJOTBUTlYKMgjVggESAzk3ORjkQCCIGCjSi64DMLePrgM4TEABWAFqB0VDT05PTVlyCExLSTkwVE5WCjII1YIBEgM0OTUYiBggg2kowpKuAzCjlK4DOExAAVgBagdFQ09OT01ZcghMS0k5MFROVhIMCAEQARgBKgJVQTIAGAEiBAgBEAEoAigDKAQwAQ) Fri, May 21 - Wed, May 26 · DEN · KOI · Roundtrip [Select United flight, departing Fri, May 21 from Denver to Kirkwall, returning Wed, May 26, priced at $1,862 Found 3 hours ago](https://www.expedia.com/Flights-Search?leg1=from:DEN,to:KOI,departure:5/21/2027TANYT&leg2=from:KOI,to:DEN,departure:5/26/2027TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:1861.11&airProductToken=AQqdAQozCNWCARIEMTkyNBiDaSCIGCj-260DMMTdrQM4VkAAWAFqB0VDT05PTVlyCFZIVjkwVE5WCjII1YIBEgM5NzgYiBgg5EAowuWtAzD%5F6K0DOFZAAVgBagdFQ09OT01ZcghWSFY5MFROVgoyCMyaARIDMzkxGORAIMpDKMjyrQMwk%5FOtAzhSQAFYAWoHRUNPTk9NWXIIVkhWOTBUTlYKnAEKMgjMmgESAzM5MhjKQyDkQCjxia4DMLyKrgM4WkAAWAFqB0VDT05PTVlyCExLSTkwVE5WCjII1YIBEgM5NzkY5EAgiBgo0ouuAzC3j64DOExAAVgBagdFQ09OT01ZcghMS0k5MFROVgoyCNWCARIDNDk1GIgYIINpKMKSrgMwo5SuAzhMQAFYAWoHRUNPTk9NWXIITEtJOTBUTlYSDAgBEAEYASoCVUEyABgBIgQIARABKAIoAygEMAE) Fri, May 21 - Wed, May 26 · DEN · KOI · Roundtrip [Select British Airways flight, departing Fri, May 21 from Denver to Kirkwall, returning Wed, May 26, priced at $1,864 Found 3 hours ago](https://www.expedia.com/Flights-Search?leg1=from:DEN,to:KOI,departure:5/21/2027TANYT&leg2=from:KOI,to:DEN,departure:5/26/2027TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:1863.49&airProductToken=AQqgAQovCMKCARIDMjE4GINpIOuJASjI2a0DMN%5FdrQM4TkAAWAFqA0JBR3IITkhXOUM5TTUKMQjCggESBDEzMDAY64kBIKDIASjf560DMLnorQM4TkABWAFqA0JBR3IITkhXOUM5TTUKOgjCggESBDQwMzIYoMgBIMpDKLbzrQMw7fOtAzhOQAFYAWoDQkFHcghOSFc5QzlNNXoICMyaARICMzIKnwEKOgjCggESBDQwNjIYykMg5EAo8YmuAzC8iq4DOE9AAFgBagNCQUdyCE9LWDlDOU01egkIzJoBEgMzOTIKMAjCggESBDE0NjUY5EAg64kBKKiUrgMwh5WuAzhPQAFYAWoDQkFHcghPS1g5QzlNNQovCMKCARIDMjE5GOuJASCDaSizl64DMIacrgM4T0ABWAFqA0JBR3IIT0tYOUM5TTUSDAgBEAEYASoCQkEyABgBIgQIARABKAIoAygEMA0) Fri, May 21 - Wed, May 26 · DEN · KOI · Roundtrip [Select United flight, departing Fri, May 21 from Denver to Kirkwall, returning Wed, May 26, priced at $1,866 Found 3 hours ago](https://www.expedia.com/Flights-Search?leg1=from:DEN,to:KOI,departure:5/21/2027TANYT&leg2=from:KOI,to:DEN,departure:5/26/2027TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:1865.14&airProductToken=AQqfAQo0CNWCARIEMjA5MxiDaSDEjQEo4dmtAzC9260DOFZAAFgBagdFQ09OT01ZcghWSFY5MFROVgozCNWCARIDMjMwGMSNASDmAijH5a0DMOborQM4VkABWAFqB0VDT05PTVlyCFZIVjkwVE5WCjIIzJoBEgM0MzQY5gIgykMoxuytAzCR7a0DOFVAAVgBagdFQ09OT01ZcghWSFY5MFROVgqdAQoyCMyaARIDMzk4GMpDIORAKNiOrgMwno-uAzhaQABYAWoHRUNPTk9NWXIITEtJOTBUTlYKMgjVggESAzExORjkQCCuHCi2lq4DMLmargM4TEABWAFqB0VDT05PTVlyCExLSTkwVE5WCjMI1YIBEgQyNjY2GK4cIINpKLihrgMw2qKuAzhMQAFYAWoHRUNPTk9NWXIITEtJOTBUTlYSDAgBEAEYASoCVUEyABgBIgQIARABKAIoAygEMAE) Fri, May 21 - Wed, May 26 · DEN · KOI · Roundtrip [Select British Airways flight, departing Fri, May 21 from Denver to Kirkwall, returning Wed, May 26, priced at $1,868 Found 3 hours ago](https://www.expedia.com/Flights-Search?leg1=from:DEN,to:KOI,departure:5/21/2027TANYT&leg2=from:KOI,to:DEN,departure:5/26/2027TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:1867.09&airProductToken=AQqfAQovCMKCARIDMjE4GINpIOuJASjI2a0DMN%5FdrQM4TkAAWAFqA0JBR3IITkhXOUM5TTUKMAjCggESBDE0NjYY64kBIORAKILjrQMwzeOtAzhOQAFYAWoDQkFHcghOSFc5QzlNNQo6CMKCARIENDA2NxjkQCDKQyiZ7K0DMOTsrQM4TkABWAFqA0JBR3IITkhXOUM5TTV6CQjMmgESAzM5NwqfAQo6CMKCARIENDA2MhjKQyDkQCjxia4DMLyKrgM4T0AAWAFqA0JBR3IIT0tYOUM5TTV6CQjMmgESAzM5MgowCMKCARIEMTQzNxjkQCDriQEoh5WuAzDmla4DOE9AAVgBagNCQUdyCE9LWDlDOU01Ci8IwoIBEgMyMTkY64kBIINpKLOXrgMwhpyuAzhPQAFYAWoDQkFHcghPS1g5QzlNNRIMCAEQARgBKgJCQTIAGAEiBAgBEAEoAigDKAQwDQ) Fri, May 21 - Wed, May 26 · DEN · KOI · Roundtrip [Select United flight, departing Fri, May 21 from Denver to Kirkwall, returning Wed, May 26, priced at $1,870 Found 3 hours ago](https://www.expedia.com/Flights-Search?leg1=from:DEN,to:KOI,departure:5/21/2027TANYT&leg2=from:KOI,to:DEN,departure:5/26/2027TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:1869.07&airProductToken=AQqdAQozCNWCARIEMjQwOBiDaSCIGCib2a0DMOHarQM4VkAAWAFqB0VDT05PTVlyCFZIVjkwVE5WCjII1YIBEgM5NzgYiBgg5EAowuWtAzD%5F6K0DOFZAAVgBagdFQ09OT01ZcghWSFY5MFROVgoyCMyaARIDMzk3GORAIMpDKJnsrQMw5OytAzhVQAFYAWoHRUNPTk9NWXIIVkhWOTBUTlYKnQEKMgjMmgESAzM5OBjKQyDkQCjYjq4DMJ6PrgM4WkAAWAFqB0VDT05PTVlyCExLSTkwVE5WCjII1YIBEgMxMTkY5EAgrhwotpauAzC5mq4DOExAAVgBagdFQ09OT01ZcghMS0k5MFROVgozCNWCARIEMjY2NhiuHCCDaSi4oa4DMNqirgM4TEABWAFqB0VDT05PTVlyCExLSTkwVE5WEgwIARABGAEqAlVBMgAYASIECAEQASgCKAMoBDAB) Fri, May 21 - Wed, May 26 · DEN · KOI · Roundtrip [Select Icelandair flight, departing Fri, May 21 from Denver to Kirkwall, returning Wed, May 26, priced at $1,931 Found 3 hours ago](https://www.expedia.com/Flights-Search?leg1=from:DEN,to:KOI,departure:5/21/2027TANYT&leg2=from:KOI,to:DEN,departure:5/26/2027TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:1930.19&airProductToken=AQqfAQozCMaSARIDNjcyGINpIIopKKLarQMw1d2tAzhRQABYAWoIU1RBTkRBUkRyCFFQMlFPQUVDCjMIxpIBEgM0MzIYiikg5gIogt6tAzCJ360DOFFAAVgBaghTVEFOREFSRHIIUVAyUU9BRUMKMwjMmgESAzQzMhjmAiDKQyis6a0DMPfprQM4QkABWAFqCFNUQU5EQVJEcghRUDJRT0FFQwqfAQozCMyaARIDMzk4GMpDIORAKNiOrgMwno-uAzhaQABYAWoIU1RBTkRBUkRyCE9PMlFPQUVDCjMIxpIBEgM0MzUY5EAgiiko25euAzD2mK4DOE9AAVgBaghTVEFOREFSRHIIT08yUU9BRUMKMwjGkgESAzY3MRiKKSCDaSiyma4DMJydrgM4T0ABWAFqCFNUQU5EQVJEcghPTzJRT0FFQxIMCAEQARgBKgJGSTIAGAEiBAgBEAEoAigDKAQwAQ) Fri, May 21 - Wed, May 26 · DEN · KOI · Roundtrip [Select Icelandair flight, departing Fri, May 21 from Denver to Kirkwall, returning Wed, May 26, priced at $1,932 Found 3 hours ago](https://www.expedia.com/Flights-Search?leg1=from:DEN,to:KOI,departure:5/21/2027TANYT&leg2=from:KOI,to:DEN,departure:5/26/2027TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:1931.79&airProductToken=AQqfAQozCMaSARIDNjcyGINpIIopKKLarQMw1d2tAzhRQABYAWoIU1RBTkRBUkRyCFFQMlFPQUVDCjMIxpIBEgM0MzIYiikg5gIogt6tAzCJ360DOFFAAVgBaghTVEFOREFSRHIIUVAyUU9BRUMKMwjMmgESAzQzMhjmAiDKQyis6a0DMPfprQM4QkABWAFqCFNUQU5EQVJEcghRUDJRT0FFQwqfAQozCMyaARIDMzk4GMpDIORAKNiOrgMwno-uAzhaQABYAWoIU1RBTkRBUkRyCE9PMlFPQUVDCjMIxpIBEgM0MzUY5EAgiiko25euAzD2mK4DOE9AAVgBaghTVEFOREFSRHIIT08yUU9BRUMKMwjGkgESAzY3MxiKKSCDaSjloa4DMMClrgM4T0ABWAFqCFNUQU5EQVJEcghPTzJRT0FFQxIMCAEQARgBKgJGSTIAGAEiBAgBEAEoAigDKAQwAQ) Fri, May 21 - Wed, May 26 · DEN · KOI · Roundtrip [Select British Airways flight, departing Fri, May 21 from Denver to Kirkwall, returning Wed, May 26, priced at $1,943 Found 3 hours ago](https://www.expedia.com/Flights-Search?leg1=from:DEN,to:KOI,departure:5/21/2027TANYT&leg2=from:KOI,to:DEN,departure:5/26/2027TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:1942.89&airProductToken=AQqgAQovCMKCARIDMjE4GINpIOuJASjI2a0DMN%5FdrQM4TkAAWAFqA0JBR3IITkhXOUM5TTUKMQjCggESBDEzMDAY64kBIKDIASjf560DMLnorQM4TkABWAFqA0JBR3IITkhXOUM5TTUKOgjCggESBDQwMzIYoMgBIMpDKLbzrQMw7fOtAzhOQAFYAWoDQkFHcghOSFc5QzlNNXoICMyaARICMzIKoAEKOgjCggESBDQwMzcYykMgoMgBKO-NrgMwoY6uAzhOQABYAWoDQkFHcghOS1g5QzlNNXoICMyaARICMzcKMQjCggESBDEzMTkYoMgBIOuJASioj64DMIKQrgM4TkABWAFqA0JBR3IITktYOUM5TTUKLwjCggESAzIxORjriQEgg2kos5euAzCGnK4DOE5AAVgBagNCQUdyCE5LWDlDOU01EgwIARABGAEqAkJBMgAYASIECAEQASgCKAMoBDAN) Fri, May 21 - Wed, May 26 · DEN · KOI · Roundtrip [Select United flight, departing Fri, May 21 from Denver to Kirkwall, returning Wed, May 26, priced at $1,947 Found 3 hours ago](https://www.expedia.com/Flights-Search?leg1=from:DEN,to:KOI,departure:5/21/2027TANYT&leg2=from:KOI,to:DEN,departure:5/26/2027TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:1946.27&airProductToken=AQqfAQo0CNWCARIEMTMwMBiDaSDEjQEogtmtAzDn2q0DOFFAAFgBagdFQ09OT01ZcghRSFY5MFROVgozCNWCARIDMjMwGMSNASDmAijH5a0DMOborQM4UUABWAFqB0VDT05PTVlyCFFIVjkwVE5WCjIIzJoBEgM0MzQY5gIgykMoxuytAzCR7a0DOFVAAVgBagdFQ09OT01ZcghRSFY5MFROVgqcAQoyCMyaARIDMzk4GMpDIORAKNiOrgMwno-uAzhaQABYAWoHRUNPTk9NWXIITEtJOTBUTlYKMgjVggESAzExORjkQCCuHCi2lq4DMLmargM4TEABWAFqB0VDT05PTVlyCExLSTkwVE5WCjII1YIBEgM1OTAYrhwgg2ko9p2uAzCPn64DOExAAVgBagdFQ09OT01ZcghMS0k5MFROVhIMCAEQARgBKgJVQTIAGAEiBAgBEAEoAigDKAQwAQ) Fri, May 21 - Wed, May 26 · DEN · KOI · Roundtrip ## Book with confidence ### Denver to Kirkwall Flights #### The cheapest times to fly from Denver to Kirkwall 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 Denver to Kirkwall are during the month of May. You can find some of the cheapest flights from Denver to Kirkwall with Expedia's search tool and vast selection of airlines. #### The best time to book a flight from Denver to Kirkwall Sunday is one of the best days to book for cheap flights from Denver to Kirkwall: 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 Denver to Kirkwall 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 Denver to Kirkwall in 2026\. You can also book with separate airlines for your outbound and return journeys, from $961 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 Denver to Kirkwall 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 Denver to Kirkwall 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.* ## Frequently Asked Questions ### How much does a flight from Denver, CO (DEN-Denver Intl.) to Kirkwall (KOI) cost? You can find cheap one-way flights from $961 and cheap return flights $1,858 Denver, CO (DEN-Denver Intl.) to Kirkwall (KOI) with Expedia. One-way flights usually range from $649 to $4531\. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Denver, CO (DEN-Denver Intl.) to Kirkwall (KOI) ticket fares go up or down. *\*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.* ### What is the cheapest month to fly from Denver, CO (DEN-Denver Intl.) to Kirkwall (KOI)? The cheapest month to fly from DEN to KOI is May when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route. ### Which airlines fly direct from Denver, CO (DEN-Denver Intl.) to Kirkwall (KOI)? Enter DEN to KOI and your travel dates, then apply the 'Nonstop' filter to see only direct flights. ### What is the cheapest airline that flies from Denver, CO (DEN-Denver Intl.) to Kirkwall (KOI)? British Airways, United and Aer Lingus are just some of the carriers that fly from Denver, CO (DEN) to Kirkwall (KOI). Use Expedia's flight search tool to compare airlines on this route and find our cheapest option for your trip. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget. *\*Prices based on flights available on Expedia in the last year.* ### How do I find cheap flights from Denver, CO (DEN-Denver Intl.) to Kirkwall (KOI)? To find a cheap flight from Denver, CO (DEN-Denver Intl.) to Kirkwall (KOI), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up [Price Tracking](https://www.expedia.com/why/price-tracking) and receive alerts when fares go up or down. ### What is the best time to fly from Denver, CO (DEN-Denver Intl.) to Kirkwall (KOI)? The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience. ### What is the earliest flight from Denver, CO (DEN-Denver Intl.) to Kirkwall (KOI)? Sort flights by "Departure (earliest)" on Expedia to find the earliest flight from DEN to KOI. To compare more early flights, use the "Early Morning" and "Morning" filters in your search. ### What day of the week has the most flights from Denver, CO (DEN-Denver Intl.) to Kirkwall (KOI)? You'll usually find the most flights from Denver Intl. (DEN) to (KOI) on a Sunday, with around 28 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include United, Icelandair, and British Airways. ### What are the most popular departure times for flights from Denver, CO (DEN-Denver Intl.) to Kirkwall (KOI)? The most popular departure times for flights from Denver (DEN) to Kirkwall (KOI) are in the evening, from 6pm to 9pm. About 67% of passengers prefer this time window. Many major carriers, including British Airways, Aer Lingus, and United Airlines, offer flights during this window. This timing is popular because it allows travelers to enjoy their day in Denver before departing. ### How long does it take to fly from Denver, CO (DEN-Denver Intl.) to Kirkwall (KOI)? Flying from DEN to KOI with a connection usually takes about 18 hours, traveling roughly 4,290 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic. ### Can you fly business or first class from Denver, CO (DEN-Denver Intl.) to Kirkwall (KOI)? Select the "Business class" and "First class" filters when looking for DEN to KOI flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip. ### How do I earn miles on a Denver, CO (DEN-Denver Intl.) to Kirkwall (KOI) flight with Expedia? It's easy to earn miles on a Denver, CO (DEN-Denver Intl.) to Kirkwall (KOI) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of [One Key™](https://www.expedia.com/welcome-one-key), you can also earn OneKeyCash™\* on top of your airline miles when you book with Expedia. \*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands. ### Is it cheaper to buy a plane ticket from Denver, CO (DEN-Denver Intl.) to Kirkwall (KOI) at the last minute? Typically, booking a last minute flight from Denver, CO (DEN-Denver Intl.) to Kirkwall (KOI) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare. ### Is it cheaper to book a Denver, CO (DEN-Denver Intl.) to Kirkwall (KOI) flight and hotel package? Securing a Denver, CO (DEN-Denver Intl.) to Kirkwall (KOI) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars. ### Can I cancel or change the date of my flight from Denver, CO (DEN-Denver Intl.) to Kirkwall (KOI)? If you booked your Denver, CO (DEN-Denver Intl.) to Kirkwall (KOI) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in [your itinerary](https://www.expedia.com/trips) or confirmation email. Or, head to our [Customer Service portal](https://www.expedia.com/helpcenter/) if you'd like more information. ## Travel information | Origin airport | Denver Intl. Airport | | ------------------- | -------------------- | | Destination airport | Kirkwall | | Distance | 4,289 miles away | | Roundtrip price | $1,858 | ## Explore a world of travel with Expedia - [Lodging](?equalTargetTab=tab-0) - [Flights](?equalTargetTab=tab-1) - [Packages](?equalTargetTab=tab-2) - [Cars](?equalTargetTab=tab-3) - [Vacation Rentals](?equalTargetTab=tab-4) - [Things to Do](?equalTargetTab=tab-5) - [Romantic Hotels in Orkney Islands](https://www.expedia.com/Destinations-In-Orkney-Islands-Romantic-Hotel.0-0-d6051152-tRomanticHotel.Hotel-Filter-Destinations) - [Resorts & Hotels with Spas in Orkney Islands](https://www.expedia.com/Destinations-In-Orkney-Islands-Spa-Hotel.0-0-d6051152-tSpaHotel.Hotel-Filter-Destinations) - [Ski Hotels in Orkney Islands](https://www.expedia.com/Destinations-In-Orkney-Islands-Ski-Hotel.0-0-d6051152-tSkiHotel.Hotel-Filter-Destinations) - [Oceanfront Hotels in Orkney Islands](https://www.expedia.com/Destinations-In-Orkney-Islands-Oceanfront-Hotels.0-0-d6051152-tOceanfrontHotels.Hotel-Filter-Destinations) - 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