Title: Cheap Flights from San Diego from £35 - Expedia.co.uk ![Default HTG hotel image](https://a.travel-assets.com/travel-assets-manager/fallback-images-brand/bex_flights_v2.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://a.travel-assets.com/travel-assets-manager/32a5a1b7-682e-4c22-a8ab-4b736795e0ea/expedia_fallback.webp?impolicy=fcrop&w=1200&h=500&q=medium) # Cheap flights from San Diego, CA ## Popular airlines from San Diego - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AA.svg) American Airlines - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AS.svg) Alaska Airlines - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_UA.svg) United - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_DL.svg) Delta - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_WN.svg) Southwest Airlines - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_F9.svg) Frontier Airlines - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_B6.svg) JetBlue Airways - ![](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 25% 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 rewards [Sign in](https://www.expedia.co.uk/login) ## Cheapest flights from San Diego These prices were available within the past 7 days. Prices quoted are per person, return, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Return ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Tue, 19 May - Tue, 2 Jun SAN San Diego SFO San Francisco £73 Return found 1 day ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:SAN,to:SFO,departure:19/05/2026TANYT&leg2=from:SFO,to:SAN,departure:02/06/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:72.70&airProductToken=AQoiCiAIwaYBEgQxNDA2GJJoILJxKOW5jQMwz7qNAzhYQABYAQoiCiAIwaYBEgQxNDA3GLJxIJJoKPzQjgMw4tGOAzhYQABYARIKCAEQARgBKgJBUxgBIgQIARABKAQwAQ) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Tue, 19 May - Tue, 26 May SAN San Diego SFO San Francisco £88 Return found 15 hours ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:SAN,to:SFO,departure:19/05/2026TANYT&leg2=from:SFO,to:SAN,departure:26/05/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:87.70&airProductToken=AQowCi4IwaYBEgQxNDA2GJJoILJxKOW5jQMwz7qNAzhYQABYAWoCU1ZyCEdIMk9YVkJOCjAKLgjBpgESBDE0MDcYsnEgkmgonIKOAzCCg44DOFhAAFgBagJTVnIIR0gyT0RWQk4SCggBEAEYASoCQVMYASIECAEQASgCKAMoBDAB) ![Delta](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/DL.gif) Tue, 12 May - Wed, 20 May SAN San Diego LAS Las Vegas £89 Return found 2 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:SAN,to:LAS,departure:12/05/2026TANYT&leg2=from:LAS,to:SAN,departure:20/05/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:88.80&airProductToken=AQojCiEIxJgBEgQzNjQxGJJoIIuQASiN6YwDMPDpjAM4RUAAWAEKIwohCMSYARIEMzc0MRiLkAEgkmgo78GNAzDEwo0DOEVAAFgBEgoIARABGAEqAkRMGAEiBAgBEAEoBDAB) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Tue, 28 Apr - Wed, 29 Apr SAN San Diego DEN Denver £89 Return found 2 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:SAN,to:DEN,departure:28/04/2026TANYT&leg2=from:DEN,to:SAN,departure:29/04/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:88.80&airProductToken=AQoiCiAIwaYBEgQxNDkyGJJoIINpKK3IiwMwvsmLAzhYQABYAQoiCiAIwaYBEgQxNDkxGINpIJJoKJbViwMwstaLAzhYQABYARIKCAEQARgBKgJBUxgBIgQIARABKAQwAQ) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Wed, 20 May - Tue, 2 Jun SAN San Diego SFO San Francisco £96 Return found 1 day ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:SAN,to:SFO,departure:20/05/2026TANYT&leg2=from:SFO,to:SAN,departure:02/06/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:95.20&airProductToken=AQoiCiAIwaYBEgQyNDU1GJJoILJxKMnAjQMwrcGNAzhYQABYAQoiCiAIwaYBEgQxNDA3GLJxIJJoKPzQjgMw4tGOAzhYQABYARIKCAEQARgBKgJBUxgBIgQIARABKAQwAQ) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Sat, 2 May - Thu, 7 May SAN San Diego SFO San Francisco £103 Return found 1 day ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:SAN,to:SFO,departure:02/05/2026TANYT&leg2=from:SFO,to:SAN,departure:07/05/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:102.70&airProductToken=AQowCi4IwaYBEgQzNDgyGJJoILJxKMv4iwMwtfmLAzhYQABYAWoCU1ZyCEdIMk9YVkJOEgoIARABGAEqAkFTGAEiBAgBEAEoAigDKAQwAQ) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Tue, 19 May - Tue, 26 May SAN San Diego SFO San Francisco £104 Return found 15 hours ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:SAN,to:SFO,departure:19/05/2026TANYT&leg2=from:SFO,to:SAN,departure:26/05/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:103.80&airProductToken=AQowCi4IwaYBEgQzMDEzGJJoILJxKNm3jQMwwbiNAzhYQABYAWoCU1ZyCE9IMk9YVkJOCjAKLgjBpgESBDE0MDcYsnEgkmgonIKOAzCCg44DOFhAAFgBagJTVnIIR0gyT0RWQk4SCggBEAEYASoCQVMYASIECAEQASgCKAMoBDAB) ![American Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AA.gif) Wed, 6 May - Sun, 10 May CLD Carlsbad LAS Las Vegas £142 Return found 2 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:CLD,to:LAS,departure:06/05/2026TANYT&leg2=from:LAS,to:CLD,departure:10/05/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:141.20&airProductToken=AQppCjIIwYIBEgQzNTA5GOIaIO-5ASiKpIwDMNukjAM4QkAAWAFqBUJBU0lDcghPVkFJS1NCVgozCMGCARIEMTk3NxjvuQEgi5ABKKKmjAMw66aMAzhCQAFYAWoFQkFTSUNyCE9WQUlLU0JWCmkKMwjBggESBDE4MDgYi5ABIO-5ASibzowDMObOjAM4QkAAWAFqBUJBU0lDcghRVUFaWk5CVgoyCMGCARIEMzUwORjvuQEg4hooldCMAzDs0IwDOEJAAVgBagVCQVNJQ3IIUVVBWlpOQlYSCggBEAEYASoCQUEYASIECAEQASgCKAMoBDAL) ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Thu, 30 Apr - Sun, 3 May SAN San Diego DEN Denver £149 Return found 2 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:SAN,to:DEN,departure:30/04/2026TANYT&leg2=from:DEN,to:SAN,departure:03/05/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:149.00&airProductToken=AQohCh8I1YIBEgM2ODIYkmggg2koqOKLAzC_44sDOEdAAFgBCiIKIAjVggESBDIzMDkYg2kgkmgo2f-LAzDvgIwDOEdAAFgBEgoIARABGAEqAlVBGAEiBAgBEAEoBDAB) ![Hawaiian Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/HA.gif) Fri, 17 Apr - Mon, 20 Apr SAN San Diego DEN Denver £180 Return found 2 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:SAN,to:DEN,departure:17/04/2026TANYT&leg2=from:DEN,to:SAN,departure:20/04/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:179.10&airProductToken=AQoiCiAIyIIBEgQ3NDg4GJJoIINpKIDPigMwnNCKAzhVQABYAQoiCiAIyIIBEgQ3NDkxGINpIJJoKITwigMwoPGKAzhVQABYARIKCAEQARgBKgJIQRgBIgQIARABKAQwAQ) Find available prices by choosing your travel dates. \*Available to Expedia members. [San Diego Travel Guide](https://expedia.co.uk/San-Diego.dx3073)[Hotels in San Diego](https://expedia.co.uk/San-Diego-Hotels.d3073.Travel-Guide-Hotels)[Things to do in San Diego](https://expedia.co.uk/Things-To-Do-In-San-Diego.d3073.Travel-Guide-Activities)[San Diego Car Hire](https://expedia.co.uk/Compare-Cheap-Car-Hire-In-San-Diego.d3073.Car-Hire-Guide)[San Diego Holidays](https://expedia.co.uk/San-Diego.d3073.Holidays-City-Breaks)