$265 Cheap Flights from Duluth (DLH) to Houston (IAH)

View $265 flight on Tue, Oct 21, 2025Opens in a new window

Popular airlines from Duluth, MN (DLH-Duluth Intl.) to George Bush Intercontinental Airport (IAH)

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Cheap Flights from Duluth to Houston (DLH-IAH)

Prices were available within the past 7 days and start at $265 for one-way flights and $248 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sat, Oct 25 - Wed, Oct 29
DLH
Duluth
IAH
Houston
$248 Roundtrip, found 3 hours ago
$248
Roundtrip
found 3 hours ago
Select Delta flight, departing Sat, Oct 25 from Duluth to Houston, returning Wed, Oct 29, priced at $248 found 3 hours ago
Delta
Tue, Jan 20 - Tue, Jan 27
DLH
Duluth
IAH
Houston
$254 Roundtrip, found 15 hours ago
$254
Roundtrip
found 15 hours ago
Select Delta flight, departing Tue, Jan 20 from Duluth to Houston, returning Tue, Jan 27, priced at $254 found 15 hours ago
Delta
Fri, Feb 6 - Tue, Feb 17
DLH
Duluth
IAH
Houston
$259 Roundtrip, found 1 day ago
$259
Roundtrip
found 1 day ago
Select Delta flight, departing Fri, Feb 6 from Duluth to Houston, returning Tue, Feb 17, priced at $259 found 1 day ago
United
Sat, Aug 30 - Wed, Sep 3
DLH
Duluth
IAH
Houston
$263 Roundtrip, found 7 hours ago
$263
Roundtrip
found 7 hours ago
Select United flight, departing Sat, Aug 30 from Duluth to Houston, returning Wed, Sep 3, priced at $263 found 7 hours ago
Delta
Wed, Aug 27 - Wed, Sep 10
DLH
Duluth
IAH
Houston
$269 Roundtrip, found 5 hours ago
$269
Roundtrip
found 5 hours ago
Select Delta flight, departing Wed, Aug 27 from Duluth to Houston, returning Wed, Sep 10, priced at $269 found 5 hours ago
Delta
Tue, Jan 20 - Thu, Jan 29
DLH
Duluth
IAH
Houston
$274 Roundtrip, found 15 hours ago
$274
Roundtrip
found 15 hours ago
Select Delta flight, departing Tue, Jan 20 from Duluth to Houston, returning Thu, Jan 29, priced at $274 found 15 hours ago
Delta
Sun, Sep 14 - Mon, Sep 29
DLH
Duluth
IAH
Houston
$278 Roundtrip, found 5 hours ago
$278
Roundtrip
found 5 hours ago
Select Delta flight, departing Sun, Sep 14 from Duluth to Houston, returning Mon, Sep 29, priced at $278 found 5 hours ago
United
Sat, Aug 30 - Wed, Sep 3
DLH
Duluth
IAH
Houston
$282 Roundtrip, found 7 hours ago
$282
Roundtrip
found 7 hours ago
Select United flight, departing Sat, Aug 30 from Duluth to Houston, returning Wed, Sep 3, priced at $282 found 7 hours ago
United
Sat, Oct 18 - Sat, Oct 25
DLH
Duluth
IAH
Houston
$286 Roundtrip, found 1 day ago
$286
Roundtrip
found 1 day ago
Select United flight, departing Sat, Oct 18 from Duluth to Houston, returning Sat, Oct 25, priced at $286 found 1 day ago
United
Sat, Oct 18 - Sat, Oct 25
DLH
Duluth
IAH
Houston
$294 Roundtrip, found 1 day ago
$294
Roundtrip
found 1 day ago
Select United flight, departing Sat, Oct 18 from Duluth to Houston, returning Sat, Oct 25, priced at $294 found 1 day ago

Alternative airports near Houston

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to George Bush Intercontinental IAH. Cheapest option available. Average driving time to city center is 24 minutes. Flights from $263
IAH
George Bush Intercontinental
Cheapest
Average driving time to city center24 min
Flights from $263
Flights from Duluth (DLH) to Houston (IAH)
Origin airport
Duluth Intl.
Destination airport
George Bush Intercontinental
Airlines serving
Delta, United
Roundtrip price
$248
Distance
1176 mi

Duluth to Houston Flights

The cheapest times to fly from Duluth to Houston

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Duluth to Houston are during the month of October. You can find some of the cheapest flights from Duluth to Houston with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Duluth to Houston

Sunday is one of the best days to book for cheap flights from Duluth to Houston: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Duluth to Houston

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Duluth to Houston in 2025. You can also book with separate airlines for your outbound and return journeys, from $265 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Duluth to Houston flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Duluth to Houston airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Duluth Intl. Airport (DLH) to George Bush Intercontinental Airport (IAH) cost?
Snag a cheap one-way flight from $265 or cheap return flight from $248 from Duluth Intl. Airport (DLH) to George Bush Intercontinental Airport (IAH) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Duluth Intl. Airport (DLH) to George Bush Intercontinental Airport (IAH)?
Planning your trip for October is a great way to save, as it's the cheapest month for flights between DLH and IAH. You'll usually find the lowest prices during off-peak months.
What is the cheapest airline that flies from Duluth Intl. Airport (DLH) to George Bush Intercontinental Airport (IAH)?
Expedia's filter tool lets you easily compare travel time, airlines and fares all in one place. Choose your preferences, then sort by "Price (lowest to highest)" to find the carrier with the cheapest DLH to IAH flight.
How many flights per day from Duluth Intl. Airport (DLH) to George Bush Intercontinental Airport (IAH)?
You'll have to catch a flight with a layover when traveling from Duluth Intl. Airport (DLH) to George Bush Intercontinental Airport (IAH). There are no daily direct flights on this route. However, just filter your search to include one or two stops to discover the best option for your trip.
What day of the week has the most flights from DLH to IAH?
You'll typically find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can change from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Duluth Intl. Airport (DLH) to George Bush Intercontinental Airport (IAH)?
To avoid possible delays on the Duluth Intl. Airport (DLH) to George Bush Intercontinental Airport (IAH) route, aim to travel before 3 PM. Later departures are 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Duluth Intl. Airport (DLH) to George Bush Intercontinental Airport (IAH) last-minute?
Waiting until just before your trip to book your flight from DLH to IAH often results in higher prices. While you may come across some last-minute deals, they're not always guaranteed. Allow some flexibility in your schedule to maximize your chances of snagging a bargain.
Is it cheaper to book a DLH to IAH flight and hotel package?
Compared with arranging hotels and flights separately, booking a DLH to IAH flight and hotel package with Expedia could result in significant savings. What's more, managing everything in one place will take the hassle out of travel planning. Just pick your flights and choose from our extensive range of hotels, then tailor your trip with other add-ons like activities, tours and car rentals.
Can I cancel or change the date of my flight from Duluth Intl. Airport (DLH) to George Bush Intercontinental Airport (IAH)?
If you reserved your DLH to IAH flight in the last 24 hours, you may be able to cancel or modify it at no cost. Depending on the airline and the ticket type you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for more information.

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*Available to One Key members.