$214 Cheap Delta flights Duluth (DLH) to Houston (IAH)

Apply the “Price (lowest to highest)” filter on Expedia to look for cheap Delta Air Lines return flights from $248 from DLH to IAH. Affordable one-way options from $214 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.

Search for round-trip or one-way flights to Houston in November or February. You could find an affordable fare with Delta Air Lines during these quieter months.

Search for affordable Delta Air Lines flights from Duluth Intl. Airport (DLH) to George Bush Intercontinental Airport (IAH) one to three months before your day of departure. Travelers who book domestic flights 34 to 86 days in advance can save 25% compared to those who book just 6 to 12 days ahead. Regardless of fare class and itinerary, the ideal day to book a domestic flight is usually Sunday and the most expensive day is typically Monday. Passengers who book on a Sunday can save 6% on average compared to those who book on a Monday.**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.

Use our “Nonstop” filter when browsing for direct Delta Air Lines flights from DLH to IAH. It’s also a great way to compare other carriers offering the same nonstop route.

Sort your results by “Early Morning” and “Morning” to see the earliest departures from DLH to IAH. 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.

George Bush Intercontinental Airport (IAH) is the main Houston gateway for Delta Air Lines flights from Duluth Intl. Airport (DLH).

Flying from DLH to IAH 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 in addition to 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.

In most cases, you can cancel or modify your flight, although there may be additional fees if you booked more than 24 hours ago. Prefer 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 adjust your plans. To modify your booking, visit “Trips,” select your flight and click on “Manage Booking” for more information.