$252 Cheap Delta flights Duluth (DLH) to San Diego (SAN)

Set the “Price (lowest to highest)” filter on Expedia to find cheap Delta Air Lines round-trip flights from $298 from DLH to SAN. Affordable one-way fares from $252 are available as well.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

January is one of the cheapest months to jet away to San Diego with Delta Air Lines. You could also find great prices on one-way and round-trip tickets in November.

Start searching one to three months ahead of your travel date to get cheap fares on Delta Air Lines flights from Duluth Intl. Airport (DLH) to San Diego Intl. Airport (SAN). You can save 25% by booking your domestic flight 34 to 86 days in advance compared to last-minute reservations made 6 to 12 days out. You could also reduce costs by buying your fare on a Sunday, as it’s 6% cheaper on average than a Monday, the most expensive day to book.* Get the timing right, and you can enjoy significant savings on domestic flights.*Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC’s global airline sales database.

Enter your dates, press search and tick the “Nonstop” filter on Expedia to browse any direct flights from DLH to SAN with Delta Air Lines or other carriers.

Filter your results by “Early Morning” and “Morning” to find the earliest flights from DLH to SAN. Taking off early means you’re less likely to experience cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.

San Diego Intl. Airport (SAN) is the main San Diego hub for Delta Air Lines flights from Duluth Intl. Airport (DLH).

Delta Air Lines makes traveling from DLH to SAN more comfortable with a rewarding loyalty program and an excellent in-flight experience. You also have the chance to earn points with Delta SkyMiles. Be sure to sign up to Expedia’s free One Key™ rewards program to earn OneKeyCash™*, which can be redeemed on future trips.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

You can usually modify or cancel your flight, although there may be additional charges if you made your booking over 24 hours ago. Want to keep your options open? Make use of Expedia’s “No cancel fee” and “Changes included” filters to find flights that won’t charge extra if you have to revise your plans. To update your itinerary, head to “Trips,” select your flight and click on “Manage Booking” for more details.