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

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How to find the cheapest flight from
Duluth (DLH) to St. Louis (STL)

All the information you need to plan the best DLH to STL flight in 2021: compare Duluth to St. Louis flight prices with the expected peak season, weather and rainfall in St. Louis.
What is the cheapest month to fly from Duluth to St. Louis?

Due to multiple factors, expect to potentially pay more when booking in September. For low rates, October can be a great choice for travel to St. Louis. Flights to St. Louis from Duluth in October are about $252 on average during October, but can be found for as low as $117.

When is the cheapest time to fly from Duluth to St. Louis (DLH - STL)?

One of the essential ways to save on airfare from Duluth to St. Louis is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the afternoon could potentially save you up to 65% on airfare.

What is the cheapest day to fly round-trip from Duluth to St. Louis?

Flying to your destination on a Friday can be more expensive, but this shouldn’t discourage you from finding affordable options to get to St. Louis. Check prices with Cheapflights to find a great deal for your trip.

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Duluth</span> to <span class="emphasized">St. Louis</span> flights.

Flight FAQs

From Duluth to St. Louis

What are the most popular airlines that fly from Duluth to St. Louis?

The most popular airlines flying from Duluth to St. Louis are American Airlines, Delta and United Airlines. Something to consider prior to booking your flight.

COVID Restrictions

View COVID Travel Restrictions for St. Louis, MO

Do I need a COVID test to fly to St. Louis from Duluth?

Information is based on travel restrictions for travel to Lambert-St Louis within the United States

Most visitors from Duluth Intl need to provide a negative COVID-19 test result and/or quarantine to enter Lambert-St Louis.

COVID-19 testing requirements
Visitors from Duluth Intl must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Lambert-St Louis.

Quarantine requirements
Visitors from Duluth Intl are not required to quarantine after entering Lambert-St Louis.

Do I need a test to fly back to Duluth from St. Louis?

Returning to Duluth Intl from Lambert-St Louis

COVID-19 testing requirements
Visitors from Lambert-St Louis must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Duluth Intl.

Quarantine requirements
Visitors from Lambert-St Louis are not required to quarantine after entering Duluth Intl.

Hide COVID Travel Restrictions for St. Louis, MO

Alternative routes for Duluth to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.

Destination information for St. Louis

Things to know before you go - useful duration and weather info for your trip from Duluth to St. Louis.
Average temperature for October in St. Louis
71.6 °F
Avg rainfall for October in St. Louis
2.8 ″

Airports servicing Duluth

Airports servicing St. Louis

Top 3 airlines flying from Duluth Intl to Lambert-St Louis

The chart below displays the airlines Cheapflights users traveling from Duluth to St. Louis choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Airline Cheapest Average Flexibility On-time COVID-19 safety
United Airlines
$117 $188 No cancel fee 69%
American Airlines
$157 $252 No cancel fee 71%
Delta
$214 $288 No cancel fee N/A
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