Title: Phoenix to Trondheim cheap flights from $402 (PHX to TRD) - Expedia.com ![](https://images.trvl-media.com/place/3528/90480d9a-c877-4452-9ddd-375c807ed3b4.jpg?impolicy=fcrop&w=1200&h=500&q=medium) Photo by CH/www.visitnorway.com ![](https://images.trvl-media.com/place/3528/90480d9a-c877-4452-9ddd-375c807ed3b4.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # $402 Cheap Flights from Phoenix (PHX) to Trondheim (TRD) [View $402 flight on Mon, Sep 28, 2026](https://expedia.com/Flights-Search?trip=oneway&leg1=from:PHX,to:TRD,departure:9/28/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:401.20&airProductToken=AQqlAQoyCMGGARIEMTI3NhjvuQEgmF0on4GZAzC6g5kDOExAAFgBagVCQVNJQ3IITEtJOTBUQlEKPAjBhgESBDkwOTgYmF0gjBUo6IWZAzCbiZkDOExAAVgBagVCQVNJQ3IITEtJOTBUQlF6CQjMkAESAzQ3NQoxCMyQARIEMjQyNhiMFSCzHCizi5kDMM6MmQM4TEABWAFqBUJBU0lDcghMS0k5MFRCURIKCAEQARgBKgJBQxgBIgQIARABKAIoAygEMAE) ## Popular airlines from Phoenix Sky Harbor Intl. Airport (PHX) to Vaernes Airport (TRD) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AY.svg) Finnair [](https://www.expedia.com/Flights-Search?leg1=from:PHX,to:TRD,departure:4/16/2026TANYT&leg2=from:TRD,to:PHX,departure:4/23/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AY"}}]) - ![](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:PHX,to:TRD,departure:4/16/2026TANYT&leg2=from:TRD,to:PHX,departure:4/23/2026TANYT&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_SK.svg) SAS [](https://www.expedia.com/Flights-Search?leg1=from:PHX,to:TRD,departure:4/16/2026TANYT&leg2=from:TRD,to:PHX,departure:4/23/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"SK"}}]) - ![](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:PHX,to:TRD,departure:4/16/2026TANYT&leg2=from:TRD,to:PHX,departure:4/23/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"KL"}}]) ## Cheap Flights from Phoenix to Trondheim (PHX-TRD) Prices were available within the past 7 days and start at $402 for one-way flights and $698 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Roundtrip ![Scandinavian Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/SK.gif) Tue, Apr 28 - Tue, May 5 PHX Phoenix TRD Trondheim $698 Roundtrip found 2 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:PHX,to:TRD,departure:4/28/2026TANYT&leg2=from:TRD,to:PHX,departure:5/5/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:697.43&airProductToken=AQqsAQpACNOWARIEMzQxNxjvuQEgqVEo_caLAzCgyYsDOE5AAFgBaghTVEFOREFSRHIITktYVVM2RVN6CQjEmAESAzU0NgozCNOWARIDOTI0GKlRIM5cKPbKiwMwvc6LAzhOQAFYAWoIU1RBTkRBUkRyCE5LWFVTNkVTCjMI05YBEgMzMzgYzlwgsxwo2tCLAzCR0YsDOE5AAVgBaghTVEFOREFSRHIITktYVVM2RVMKrAEKMwjTlgESAzM0NxizHCDOXCidk4wDMNSTjAM4TEAAWAFqCFNUQU5EQVJEcghMS1hVUzZFUwozCNOWARIDOTIzGM5cIKlRKIiVjAMw_JiMAzhMQAFYAWoIU1RBTkRBUkRyCExLWFVTNkVTCkAI05YBEgQzNDE2GKlRIO-5ASi8m4wDMJaejAM4TEABWAFqCFNUQU5EQVJEcghMS1hVUzZFU3oJCMSYARIDNzg0EgoIARABGAEqAlNLGAEiBAgBEAEoAigDKAQwAQ) ![Delta](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/DL.gif) Tue, Apr 28 - Tue, May 5 PHX Phoenix TRD Trondheim $879 Roundtrip found 2 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:PHX,to:TRD,departure:4/28/2026TANYT&leg2=from:TRD,to:PHX,departure:5/5/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:878.73&airProductToken=AQqnAQoyCMSYARIEMjI3NBjvuQEgzHwo7MqLAzCozIsDOEVAAFgBagVMSUdIVHIIT0xYODZOQkwKPQjWpgESBDQwNTgYzHwggJMBKMDNiwMwtNGLAzhUQAFYAWoFTElHSFRyCE9MWDg2TkJMegkIxJgBEgMxNjQKMgjLmAESBDExNTUYgJMBILMcKIDViwMwgtaLAzhWQAFYAWoFTElHSFRyCE9MWDg2TkJMCrIBCkIIxJgBEgQ5MjcwGLMcIICTASjQkYwDMNeSjAM4RUAAWAFqCU1BSU5CQVNJQ3IIVkxYODZOQkx6CgjLmAESBDExNTAKNAjEmAESAjU3GICTASDyEijyk4wDMN-YjAM4RUABWAFqCU1BSU5CQVNJQ3IIVkxYODZOQkwKNgjEmAESBDE3MzgY8hIg77kBKOCZjAMwx5qMAzhFQAFYAWoJTUFJTkJBU0lDcghWTFg4Nk5CTBIKCAEQARgBKgJWUxgBIgQIARABKAIoAygEMAE) ![Delta](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/DL.gif) Tue, Apr 28 - Tue, May 5 PHX Phoenix TRD Trondheim $886 Roundtrip found 2 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:PHX,to:TRD,departure:4/28/2026TANYT&leg2=from:TRD,to:PHX,departure:5/5/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:885.01&airProductToken=AQqpAQo3CMSYARIEMTU2NhjvuQEg47QBKI3PiwMw6dCLAzhFQABYAWoJTUFJTkJBU0lDcghWTFg4Nk5CTAo2CMSYARIDMTM0GOO0ASCAkwEo19aLAzC32osDOEVAAVgBaglNQUlOQkFTSUNyCFZMWDg2TkJMCjYIy5gBEgQxMTUxGICTASCzHCj92osDMP_biwM4VkABWAFqCU1BSU5CQVNJQ3IIVkxYODZOQkwKsgEKQgjEmAESBDkyNzAYsxwggJMBKNCRjAMw15KMAzhFQABYAWoJTUFJTkJBU0lDcghWTFg4Nk5CTHoKCMuYARIEMTE1MAo0CMSYARICNTcYgJMBIPISKPKTjAMw35iMAzhFQAFYAWoJTUFJTkJBU0lDcghWTFg4Nk5CTAo2CMSYARIEMTczOBjyEiDvuQEo4JmMAzDHmowDOEVAAVgBaglNQUlOQkFTSUNyCFZMWDg2TkJMEgoIARABGAEqAkRMGAEiBAgBEAEoAigDKAQwAQ) ![KLM](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/KL.gif) Tue, Apr 28 - Tue, May 5 PHX Phoenix TRD Trondheim $907 Roundtrip found 2 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:PHX,to:TRD,departure:4/28/2026TANYT&leg2=from:TRD,to:PHX,departure:5/5/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:906.73&airProductToken=AQqmAQo9CMuYARIENzYxOBjvuQEgqVEo_caLAzCgyYsDOFZAAFgBagVMSUdIVHIIVkxYODZOQkx6CQjEmAESAzU0NgoxCMuYARIDNjQyGKlRIICTASjYyosDMJDOiwM4VkABWAFqBUxJR0hUcghWTFg4Nk5CTAoyCMuYARIEMTE1MRiAkwEgsxwo3c-LAzDf0IsDOExAAVgBagVMSUdIVHIIVkxYODZOQkwKsgEKMgjLmAESBDExNTAYsxwggJMBKNCRjAMw15KMAzhMQABYAWoFTElHSFRyCFZMWDg2TkJMCjwIy5gBEgQ2MDI3GICTASDyEijyk4wDMN-YjAM4VkABWAFqBUxJR0hUcghWTFg4Nk5CTHoICMSYARICNTcKPgjLmAESBDYzMTUY8hIg77kBKOCZjAMwx5qMAzhWQAFYAWoFTElHSFRyCFZMWDg2TkJMegoIxJgBEgQxNzM4EgoIARABGAEqAktMGAEiBAgBEAEoAigDKAQwAQ) ![Delta](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/DL.gif) Tue, Apr 28 - Tue, May 5 PHX Phoenix TRD Trondheim $914 Roundtrip found 2 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:PHX,to:TRD,departure:4/28/2026TANYT&leg2=from:TRD,to:PHX,departure:5/5/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:913.01&airProductToken=AQqpAQo3CMSYARIEMTU2NhjvuQEg47QBKI3PiwMw6dCLAzhFQABYAWoJTUFJTkJBU0lDcghWTFg4Nk5CTAo2CMSYARIDMTM0GOO0ASCAkwEo19aLAzC32osDOEVAAVgBaglNQUlOQkFTSUNyCFZMWDg2TkJMCjYIy5gBEgQxMTUxGICTASCzHCj92osDMP_biwM4VkABWAFqCU1BSU5CQVNJQ3IIVkxYODZOQkwKpwEKMgjLmAESBDExNTAYsxwggJMBKNCRjAMw15KMAzhWQABYAWoFTElHSFRyCE9MWDg2TkJMCj0I1qYBEgQzOTQyGICTASDyEijyk4wDMN-YjAM4VEABWAFqBUxJR0hUcghPTFg4Nk5CTHoJCMSYARIDMDU3CjIIxJgBEgQxNzM4GPISIO-5ASjgmYwDMMeajAM4RUABWAFqBUxJR0hUcghPTFg4Nk5CTBIKCAEQARgBKgJETBgBIgQIARABKAIoAygEMAE) ![American Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AA.gif) Tue, Apr 28 - Tue, May 5 PHX Phoenix TRD Trondheim $922 Roundtrip found 2 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:PHX,to:TRD,departure:4/28/2026TANYT&leg2=from:TRD,to:PHX,departure:5/5/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:921.13&airProductToken=AQqkAQoyCMGCARIEMTU0MRjvuQEgqVEo38iLAzCPy4sDOFFAAFgBagVOT0JBR3IIUUxYOEMxQlYKPAjCggESBDYwNTIYqVEgh1koys2LAzC00YsDOFFAAVgBagVOT0JBR3IIUUxYOEMxQlZ6CQjBsgESAzAxNgowCMGyARIDOTQ5GIdZILMcKMrSiwMwx9OLAzhRQAFYAWoFTk9CQUdyCFFMWDhDMUJWCrABCjAIwbIBEgM5NDgYsxwgh1ko-pKMAzD3k4wDOFFAAFgBagVOT0JBR3IIUUxYOEMxQlYKPAjCggESBDYwODkYh1kgrhwohZaMAzC6mowDOFFAAVgBagVOT0JBR3IIUUxYOEMxQlZ6CQjBsgESAzAwOQo-CMKCARIENjc5NBiuHCDvuQEoupyMAzCjnowDOFFAAVgBagVOT0JBR3IIUUxYOEMxQlZ6CgjBggESBDE2NDUSCggBEAEYASoCQkEYASIECAEQASgCKAMoBDAN) ![Scandinavian Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/SK.gif) Tue, Apr 28 - Tue, May 5 PHX Phoenix TRD Trondheim $948 Roundtrip found 2 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:PHX,to:TRD,departure:4/28/2026TANYT&leg2=from:TRD,to:PHX,departure:5/5/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:947.43&airProductToken=AQqgAQo8CNOWARIEMzQxNxjvuQEgqVEo_caLAzCgyYsDOE5AAFgBagRGTEVYcghOS1hVUzZFRnoJCMSYARIDNTQ2Ci8I05YBEgM5MjQYqVEgzlwo9sqLAzC9zosDOE5AAVgBagRGTEVYcghOS1hVUzZFRgovCNOWARIDMzM4GM5cILMcKNrQiwMwkdGLAzhOQAFYAWoERkxFWHIITktYVVM2RUYKoAEKLwjTlgESAzM0NxizHCDOXCidk4wDMNSTjAM4TEAAWAFqBEZMRVhyCExLWFVTNkVGCi8I05YBEgM5MjMYzlwgqVEoiJWMAzD8mIwDOExAAVgBagRGTEVYcghMS1hVUzZFRgo8CNOWARIEMzQxNhipUSDvuQEovJuMAzCWnowDOExAAVgBagRGTEVYcghMS1hVUzZFRnoJCMSYARIDNzg0EgoIARABGAEqAlNLGAEiBAgBEAEoAigDKAQwAQ) ![Scandinavian Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/SK.gif) Mon, Apr 13 - Mon, Apr 20 PHX Phoenix TRD Trondheim $967 Roundtrip found 6 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:PHX,to:TRD,departure:4/13/2026TANYT&leg2=from:TRD,to:PHX,departure:4/20/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:966.93&airProductToken=AQqwAQpCCNOWARIEMzg4OBjvuQEgi7gBKKSgigMwhaGKAzhVQABYAWoIU1RBTkRBUkRyCFVLWFVTNkVTegoIxJgBEgQ0MTE5CjQI05YBEgM5MzIYi7gBIOI7KMKkigMw1qmKAzhVQAFYAWoIU1RBTkRBUkRyCFVLWFVTNkVTCjQI05YBEgQyODgwGOI7ILMcKOqzigMwybSKAzhVQAFYAWoIU1RBTkRBUkRyCFVLWFVTNkVTCqwBCjMI05YBEgMzNzcYsxwgzlwo2e6KAzCQ74oDOExAAFgBaghTVEFOREFSRHIITEtYVVM2RVMKMwjTlgESAzkyMxjOXCCpUSjI94oDMLz7igM4TEABWAFqCFNUQU5EQVJEcghMS1hVUzZFUwpACNOWARIEMzQxNhipUSDvuQEo_P2KAzDWgIsDOExAAVgBaghTVEFOREFSRHIITEtYVVM2RVN6CQjEmAESAzc4NBIKCAEQARgBKgJTSxgBIgQIARABKAIoAygEMAE) ![Air Canada](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AC.gif) Mon, Sep 28 - Sat, Oct 3 PHX Phoenix TRD Trondheim $976 Roundtrip found 3 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:PHX,to:TRD,departure:9/28/2026TANYT&leg2=from:TRD,to:PHX,departure:10/3/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:975.60&airProductToken=AQqlAQoyCMGGARIEMTI3NhjvuQEgmF0on4GZAzC6g5kDOExAAFgBagVCQVNJQ3IITEtJOTBUQlEKPAjBhgESBDkwOTgYmF0gjBUo6IWZAzCbiZkDOExAAVgBagVCQVNJQ3IITEtJOTBUQlF6CQjMkAESAzQ3NQoxCMyQARIEMjQyNhiMFSCzHCizi5kDMM6MmQM4TEABWAFqBUJBU0lDcghMS0k5MFRCUQquAQo0CMyQARIEMjQyNxizHCCMFSj7uZkDMJa7mQM4VEAAWAFqCEVDT0xJR0hUcghUS1Y5MFRCUQozCMyQARIDNDE0GIwVIIgYKLzEmQMw3ciZAzhUQAFYAWoIRUNPTElHSFRyCFRLVjkwVEJRCkEIzJABEgQ3Njc4GIgYIO-5ASiZ05kDMM_VmQM4VEABWAFqCEVDT0xJR0hUcghUS1Y5MFRCUXoKCNWCARIEMTkzOBIKCAEQARgBKgJBQxgBIgQIARABKAIoAygEMAE) ![Lufthansa](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/LH.gif) Mon, Sep 28 - Sat, Oct 3 PHX Phoenix TRD Trondheim $992 Roundtrip found 3 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:PHX,to:TRD,departure:9/28/2026TANYT&leg2=from:TRD,to:PHX,departure:10/3/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:991.80&airProductToken=AQquAQpBCMyQARIEOTI0NRjvuQEgg2kolIOZAzD_g5kDOExAAFgBaghFQ09MSUdIVHIITEtJOTBUQlF6CgjVggESBDE2NTgKMwjMkAESAzQ4MRiDaSCMFSjNhJkDMIyJmQM4TEABWAFqCEVDT0xJR0hUcghMS0k5MFRCUQo0CMyQARIEMjQyNhiMFSCzHCizi5kDMM6MmQM4TEABWAFqCEVDT0xJR0hUcghMS0k5MFRCUQquAQo0CMyQARIEMjQyNxizHCCMFSj7uZkDMJa7mQM4VEAAWAFqCEVDT0xJR0hUcghUS1Y5MFRCUQozCMyQARIDNDE0GIwVIIgYKLzEmQMw3ciZAzhUQAFYAWoIRUNPTElHSFRyCFRLVjkwVEJRCkEIzJABEgQ3Njc4GIgYIO-5ASiZ05kDMM_VmQM4VEABWAFqCEVDT0xJR0hUcghUS1Y5MFRCUXoKCNWCARIEMTkzOBIKCAEQARgBKgJMSBgBIgQIARABKAIoAygEMAs) ## Frequently asked questions ### How much does a flight from Phoenix, AZ (PHX-Sky Harbor Intl.) to Trondheim (TRD-Vaernes) cost? ### What is the cheapest month to fly from Phoenix, AZ (PHX-Sky Harbor Intl.) to Trondheim (TRD-Vaernes)? ### Which airlines fly direct from Phoenix, AZ (PHX-Sky Harbor Intl.) to Trondheim (TRD-Vaernes)? ### What is the cheapest airline that flies from Phoenix, AZ (PHX-Sky Harbor Intl.) to Trondheim (TRD-Vaernes)? ### How do I find cheap flights from Phoenix, AZ (PHX-Sky Harbor Intl.) to Trondheim (TRD-Vaernes)? ### What is the best time to fly from Phoenix, AZ (PHX-Sky Harbor Intl.) to Trondheim (TRD-Vaernes)? ### What is the earliest flight from Phoenix, AZ (PHX-Sky Harbor Intl.) to Trondheim (TRD-Vaernes)? ### How long does it take to fly from Phoenix, AZ (PHX-Sky Harbor Intl.) to Trondheim (TRD-Vaernes)? ### Can you fly business or first class from Phoenix, AZ (PHX-Sky Harbor Intl.) to Trondheim (TRD-Vaernes)? > - Air Canada > - United Airlines > - Delta Air Lines ### How do I earn miles on a Phoenix, AZ (PHX-Sky Harbor Intl.) to Trondheim (TRD-Vaernes) flight with Expedia? ### What airports do you fly into for Trondheim from Sky Harbor Intl. (PHX)? ### Is it cheaper to buy a plane ticket from Phoenix, AZ (PHX-Sky Harbor Intl.) to Trondheim (TRD-Vaernes) at the last minute? ### Is it cheaper to book a Phoenix, AZ (PHX-Sky Harbor Intl.) to Trondheim (TRD-Vaernes) flight and hotel package? ### Can I cancel or change the date of my flight from Phoenix, AZ (PHX-Sky Harbor Intl.) to Trondheim (TRD-Vaernes)? ## Travel information | Origin airport | Sky Harbor Intl. | | ------------------- | ---------------------------------------------- | | Destination airport | Vaernes | | Airlines serving | Finnair, KLM, Lufthansa, Scandinavian Airlines | | Roundtrip price | $697 | | Distance | 5052 mi | ## Book with confidence # Phoenix to Trondheim Flights The cheapest times to fly from Phoenix to Trondheim 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 Phoenix to Trondheim are during the month of April. You can find some of the cheapest flights from Phoenix to Trondheim with Expedia's search tool and vast selection of airlines. The best time to book a flight from Phoenix to Trondheim Sunday is one of the best days to book for cheap flights from Phoenix to Trondheim: 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 Phoenix to Trondheim 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 Phoenix to Trondheim in 2026\. You can also book with separate airlines for your outbound and return journeys, from $402 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 Phoenix to Trondheim 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 Phoenix to Trondheim 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. \*Available to One Key members. ## Explore a world of travel with Expedia - Lodging - Flights - Packages - Cars - Vacation Rentals - Other - [Hell Hotels ](https://www.expedia.com/Hell-Hotels.d6056567.Travel-Guide-Hotels) - [5 Star Hotels in Hell ](https://www.expedia.com/5Star-Hell-Hotels.s50-0-d6056567.Travel-Guide-Filter-Hotels) - [Scandic Hotels in Hell ](https://www.expedia.com/Hell-Hotels-Scandic-Hotels.0-0-d6056567--bScandicHotels.Travel-Guide-Filter-Hotels) - [Cabin Rentals in Hell ](https://www.expedia.com/Hell-Cabins.d6056567-aaCabins.Travel-Guide-Accommodation) - [Hostels in Stjordal ](https://www.expedia.com/Stjordal-Hostels.d4274-aaHostels.Travel-Guide-Accommodation) - [Apartments in Stjordal ](https://www.expedia.com/Stjordal-Apartments.d4274-aaApartments.Travel-Guide-Accommodation) - [Gay friendly Hotels in Stjordal ](https://www.expedia.com/Stjordal-Hotels-LGBT-Welcoming-Hotel.0-0-d4274-tLGBTWelcomingHotel.Travel-Guide-Filter-Hotels) - 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