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CA $501 Cheap Flights from Duluth (DLH) to St. Louis (STL)

View CA $501 flight on Sat, Sep 5, 2026Opens in a new window

Popular airlines from Duluth, MN (DLH-Duluth Intl.) to Lambert-St. Louis International Airport (STL)

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Cheap flights from Duluth (DLH) to St. Louis (STL)

Prices were available within the past 7 days and start at CA $501 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frequently asked questions

How much does a flight from Duluth, MN (DLH-Duluth Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.) cost?
You can find cheap one-way flights from CA $501 and cheap return flights DLH to STL with Expedia. One-way flights typically cost between CA$318 and CA$547. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when DLH to STL ticket fares go up or down.
What is the cheapest month to fly from Duluth, MN (DLH-Duluth Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.)?
The cheapest months to fly from DLH to STL are typically during off-peak season when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you are able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Duluth, MN (DLH-Duluth Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.)?
Enter DLH to STL and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Duluth, MN (DLH-Duluth Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.)?
Delta is one of the cheapest airlines offering connecting return flights from Duluth, MN (DLH-Duluth Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.), with prices starting from around CA$328 for flights that can be booked for departure within the next year. These flights typically include a layover in Minneapolis - St. Paul Intl. (MSP). Prices are per adult, for economy/coach class. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.
How do I find cheap flights from Duluth, MN (DLH-Duluth Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.)?
To find a cheap flight from Duluth, MN (DLH-Duluth Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Duluth, MN (DLH-Duluth Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Duluth, MN (DLH-Duluth Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.)?
There are approximately 8 connecting flights per day from Duluth Intl. (DLH) to Lambert-St. Louis Intl. (STL). Some common connection points include O'Hare Intl. (ORD) and Minneapolis - St. Paul Intl. (MSP).
What is the earliest flight from Duluth, MN (DLH-Duluth Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.)?
The earliest flight from Duluth, MN (DLH-Duluth Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.) typically departs around 5:00 AM. This service is operated by Delta and is a seasonal offering, active in April and May. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Duluth, MN (DLH-Duluth Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.)?
You'll generally find the most flights from Duluth Intl. (DLH) to Lambert-St. Louis Intl. (STL) on a Saturday, with around 7 flights available. This gives you a good selection of options for your travel plans. Major airlines on this route include Delta and United.
What are the most popular departure times for flights from Duluth, MN (DLH-Duluth Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.)?
The most popular departure times for flights from Duluth Intl. (DLH) to Lambert-St. Louis Intl. (STL) are in the afternoon, from 3pm to 6pm. Many major carriers, including United and Delta, offer flights during this window. Many travellers prefer this time as it allows for a full morning before departure and an evening arrival at your destination.
How long does it take to fly from Duluth, MN (DLH-Duluth Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.)?
There are no nonstop flights from Duluth, MN (DLH-Duluth Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.). For this route, which covers a distance of about 912 kilometres, flights with one stop typically take around 6 hours 48 minutes. If you opt for flights with two or more stops, your travel time will be longer, usually around 9 hours 48 minutes. Keep in mind that actual flight times can vary due to factors like layover duration, routing, and weather conditions.
Can you fly business or first class from Duluth, MN (DLH-Duluth Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.)?
You can fly business class or first class between DLH and STL. You can fly business class with Delta.First class cabins are available on United and Delta.
How do I earn miles on a Duluth, MN (DLH-Duluth Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.) flight with Expedia?
It's easy to earn miles on a Duluth, MN (DLH-Duluth Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for St. Louis, MO (STL) from Duluth, MN (DLH)?
If you're planning to travel to St. Louis from Duluth Intl. (DLH), you can fly directly into Lambert-St. Louis Intl. (STL). Some flights may connect through major hubs like Minneapolis - St. Paul Intl. (MSP) or O'Hare Intl. (ORD) before reaching St. Louis. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Duluth, MN (DLH-Duluth Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.) at the last minute?
Typically, booking a last minute flight from Duluth, MN (DLH-Duluth Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Duluth, MN (DLH-Duluth Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.) flight and hotel package?
Securing a Duluth, MN (DLH-Duluth Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Duluth, MN (DLH-Duluth Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.)?
If you booked your Duluth, MN (DLH-Duluth Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Duluth Intl.
Destination airport
Lambert-St. Louis Intl.
Distance
906 km

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Duluth to St. Louis Flights

The easy way to book your flights from Duluth to St. Louis 

With Expedia, it’s simple to find and book flights to St. Louis from Duluth whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 17 airlines that cover this route. There are nonstop flights to Lambert-St. Louis Intl., too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Duluth to St. Louis today, tomorrow, or this week.  

 

Save dollars with cheap flights from Duluth Intl., DLH to Lambert-St. Louis Intl., STL 

Sort your search results by price to find great deals on your flight from Duluth to St. Louis—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to St. Louis from Duluth currently is just rising to .  

Here are more money-saving tips: 

  • Fly in when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to St. Louis  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to St. Louis from Duluth 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to St. Louis with Expedia today.

Duluth to St. Louis Flights

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