Title: Cheap flights from Houston to Duluth (IAH to SUW) - Expedia.com ![](https://images.trvl-media.com/place/1029/61b972fc-e66f-4f69-b951-3a5d4c95d36b.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/1029/61b972fc-e66f-4f69-b951-3a5d4c95d36b.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # Cheap Flights from Houston (IAH) to Duluth (SUW) ## Popular airlines from George Bush Intercontinental Airport (IAH) to Duluth, MN (SUW-Richard I. Bong) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AA.svg) American Airlines [](https://www.expedia.com/Flights-Search?leg1=from:IAH,to:SUW,departure:4/11/2026TANYT&leg2=from:SUW,to:IAH,departure:4/18/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AA"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_UA.svg) United [](https://www.expedia.com/Flights-Search?leg1=from:IAH,to:SUW,departure:4/11/2026TANYT&leg2=from:SUW,to:IAH,departure:4/18/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"UA"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_WN.svg) Southwest Airlines [](https://www.expedia.com/Flights-Search?leg1=from:IAH,to:SUW,departure:4/11/2026TANYT&leg2=from:SUW,to:IAH,departure:4/18/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"WN"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_DL.svg) Delta [](https://www.expedia.com/Flights-Search?leg1=from:IAH,to:SUW,departure:4/11/2026TANYT&leg2=from:SUW,to:IAH,departure:4/18/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"DL"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_F9.svg) Frontier Airlines [](https://www.expedia.com/Flights-Search?leg1=from:IAH,to:SUW,departure:4/11/2026TANYT&leg2=from:SUW,to:IAH,departure:4/18/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"F9"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_B6.svg) JetBlue Airways [](https://www.expedia.com/Flights-Search?leg1=from:IAH,to:SUW,departure:4/11/2026TANYT&leg2=from:SUW,to:IAH,departure:4/18/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"B6"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AS.svg) Alaska Airlines [](https://www.expedia.com/Flights-Search?leg1=from:IAH,to:SUW,departure:4/11/2026TANYT&leg2=from:SUW,to:IAH,departure:4/18/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AS"}}]) - ![](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__notification.svg) ### Be in the know Get alerts if flight prices drop or rise\* - ![](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__deals.svg) ### Book smarter Save up to 30% on select hotels after you book a flight\* - ![](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__trophy.svg) ### Earn twice Earn your airline miles on top of our OneKeyCash [Learn about One Key](https://www.expedia.com/welcome-one-key) ## Alternative airports near Duluth Prices were available within the past 7 days. Prices and availability are subject to change. [](https://www.expedia.com/Flights-Search?leg1=from:IAH,to:DLH,departure:4/11/2026TANYT&leg2=from:DLH,to:IAH,departure:4/19/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) DLH Duluth Intl. CheapestClosest 11 min [Flights from $349 ](https://www.expedia.com/Flights-Search?leg1=from:IAH,to:DLH,departure:4/11/2026TANYT&leg2=from:DLH,to:IAH,departure:4/19/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) ## Frequently asked questions ### How much does a flight from Houston, TX (IAH-George Bush Intercontinental) to Duluth, MN (SUW-Richard I. Bong) cost? ### What is the cheapest month to fly from Houston, TX (IAH-George Bush Intercontinental) to Duluth, MN (SUW-Richard I. Bong)? ### Which airlines fly direct from Houston, TX (IAH-George Bush Intercontinental) to Duluth, MN (SUW-Richard I. Bong)? ### How do I find cheap flights from Houston, TX (IAH-George Bush Intercontinental) to Duluth, MN (SUW-Richard I. Bong)? ### What is the best time to fly from Houston, TX (IAH-George Bush Intercontinental) to Duluth, MN (SUW-Richard I. Bong)? ### What is the earliest flight from Houston, TX (IAH-George Bush Intercontinental) to Duluth, MN (SUW-Richard I. Bong)? ### Can you fly business or first class from Houston, TX (IAH-George Bush Intercontinental) to Duluth, MN (SUW-Richard I. Bong)? ### How do I earn miles on a Houston, TX (IAH-George Bush Intercontinental) to Duluth, MN (SUW-Richard I. Bong) flight with Expedia? ### What airports do you fly into for Duluth from George Bush Intercontinental (IAH)? ### Is it cheaper to buy a plane ticket from Houston, TX (IAH-George Bush Intercontinental) to Duluth, MN (SUW-Richard I. Bong) at the last minute? ### Is it cheaper to book a Houston, TX (IAH-George Bush Intercontinental) to Duluth, MN (SUW-Richard I. Bong) flight and hotel package? ### Can I cancel or change the date of my flight from Houston, TX (IAH-George Bush Intercontinental) to Duluth, MN (SUW-Richard I. Bong)? ## Travel information | Origin airport | George Bush Intercontinental | | ------------------- | ---------------------------- | | Destination airport | Richard I. Bong | | Distance | 1166 mi | ## Book with confidence # Houston to Duluth Flights The cheapest times to fly from Houston to Duluth 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 Houston to Duluth are during the month of . You can find some of the cheapest flights from Houston to Duluth with Expedia's search tool and vast selection of airlines. The best time to book a flight from Houston to Duluth Sunday is one of the best days to book for cheap flights from Houston to Duluth: 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 Houston to Duluth 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 Houston to Duluth in 2026\. You can also book with separate airlines for your outbound and return journeys, from 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 Houston to Duluth 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](https://www.expedia.com/package-deals). Bundling together your Houston to Duluth 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\. 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