$173 Cheap Delta flights Phoenix (PHX) to Duluth (DLH)

You can find budget-friendly return Delta Air Lines flights from $246 from PHX to DLH by filtering your results from “Price (lowest to highest)” on Expedia. Or search for bargains from $173 for a one-way journey.**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 off to Duluth with Delta Air Lines. You could also find excellent prices on return and one-way tickets in February.

Start searching one to three months before your departure to get cheaper fares on Delta Air Lines flights from Sky Harbor Intl. Airport (PHX) to Duluth Intl. Airport (DLH). 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.* Time it well, and you can enjoy significant savings on domestic journeys.*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.

Select our “Nonstop” filter when browsing for direct Delta Air Lines flights from PHX to DLH. It’s also an easy way to compare other airlines servicing the same nonstop trip.

Filter your results by “Early Morning” and “Morning” to see the earliest flights from PHX to DLH. 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.

Delta Air Lines flights from Sky Harbor Intl. Airport (PHX) to Duluth touch down at Duluth Intl. Airport (DLH). This is the main entry point here.

Offering a rewarding loyalty program and an excellent in-flight experience, Delta Air Lines is a top choice for many travelers heading from PHX to DLH. Also, if you’re a Delta SkyMiles and One Key™ member booking with Expedia, you could earn OneKeyCash™* on eligible flights on top of your airline miles, which can go toward future trips.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Changes are generally free within 24 hours of making a booking, but your airline may add a charge after that time. For further details about altering your reservation, check out your “Trips,” select your flight and click on “Manage Booking.” If you’d like the flexibility to change your itinerary without extra charges, apply the “No cancel fee” or “Changes included” filter when organizing your next break.