$183 Cheap Delta flights Portland (PDX) to Duluth (DLH)

You’ll discover cheap round-trip Delta Air Lines flights from $258 from PDX to DLH by filtering your results from “Price (lowest to highest)” on Expedia. Or search for deals from $183 for a one-way trip.**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.

Browse for return or one-way flights to Duluth in January or February. You could find lower fares with Delta Air Lines during these quieter months.

For cheap Delta Air Lines fares from Portland Intl. Airport (PDX) to Duluth Intl. Airport (DLH), start searching one to three months before your planned departure. Reserving domestic flights 34 to 86 days in advance could save you 25% compared to booking just 6 to 12 days ahead. The day you book can also affect the price you pay. Sunday tends to be the cheapest, while Monday is often the most expensive for domestic flights. You can save 6% on average by booking your trip on a Sunday.**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.

To see if there’s a direct trip from PDX to DLH with Delta Air Lines or other carriers, select the “Nonstop” filter when searching for flights.

Filter your results by “Morning” and “Early Morning” to browse the earliest flights from PDX to DLH. Heading off early means you’re 20% 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 Portland Intl. Airport (PDX) to Duluth touch down at Duluth Intl. Airport (DLH). This is the main entry point here.

Heading from PDX to DLH with Delta Air Lines means enjoying a host of perks, such as a rewarding loyalty program and an excellent in-flight experience. Plus, when you book through Expedia, One Key™ members can earn OneKeyCash™* to redeem on select future travel purchases. That’s on top of the Delta SkyMiles points you can earn with Delta Air Lines.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Typically, you can change or cancel your flight, although there may be a charge if your booking was made over 24 hours ago. Need to keep your options open? Use our “No cancel fee” or “Changes included” filter to find flights that won’t penalize you if you need to adjust your plans. To update your itinerary, go to “Trips,” select your flight and click on “Manage Booking” for more details.