STL - DLH

$234 Find Cheap Flights from St. Louis to Duluth

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Duluth departing on 7/20. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult

KAYAK searches hundreds of travel sites at once for deals on flights to Duluth

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Duluth, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Duluth, as well as popular online travel agencies
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Cheap Flights from St. Louis to Duluth

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Duluth that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from St. Louis to Duluth

KAYAK's recommended round-trip deals from the most popular airlines that fly from St. Louis to Duluth.
Discover the best prices for you by selecting your travel dates on KAYAK.
Choose your dates
Delta Logo
6:05 pm - 11:38 pmSTL-DLH
5h 33m1 stop
Delta Logo
5:10 am - 10:47 amDLH-STL
5h 37m1 stop
$258Delta
Find Deal
Fri, May 23 - Tue, May 27
Delta Logo
6:05 pm - 11:38 pmSTL-DLH
5h 33m1 stop
Delta Logo
12:00 pm - 5:10 pmDLH-STL
5h 10m1 stop
$318Delta
Find Deal
Thu, May 15 - Sat, May 17
Delta Logo
6:05 pm - 11:38 pmSTL-DLH
5h 33m1 stop
Delta Logo
5:10 am - 10:47 amDLH-STL
5h 37m1 stop
$328Delta
Find Deal
Thu, May 8 - Mon, May 12
Delta Logo
6:00 am - 11:13 amSTL-DLH
5h 13m1 stop
Delta Logo
12:00 pm - 5:00 pmDLH-STL
5h 00m1 stop
$334Delta
Find Deal
Mon, May 19 - Thu, May 22
Delta Logo
6:00 am - 11:13 amSTL-DLH
5h 13m1 stop
Delta Logo
12:00 pm - 5:00 pmDLH-STL
5h 00m1 stop
$342Delta
Find Deal
Wed, May 21 - Wed, May 28
Delta Logo
12:10 pm - 5:35 pmSTL-DLH
5h 25m1 stop
Delta Logo
5:10 am - 8:32 amDLH-STL
3h 22m1 stop
$367Delta
Find Deal
Sat, Jul 12 - Sun, Jul 13
United Airlines Logo
7:00 am - 10:52 amSTL-DLH
27h 52m3 stops
United Airlines Logo
8:00 am - 2:53 pmDLH-STL
6h 53m1 stop
$508United Airlines
Find Deal
Wed, May 21 - Wed, May 28
United Airlines Logo
4:50 pm - 10:52 amSTL-DLH
18h 02m2 stops
United Airlines Logo
11:27 am - 3:30 pmDLH-STL
4h 03m1 stop
$517United Airlines
Find Deal
Wed, May 21 - Wed, May 28
United Airlines Logo
5:20 am - 9:55 pmSTL-DLH
40h 35m2 stops
United Airlines Logo
8:00 am - 2:53 pmDLH-STL
6h 53m1 stop
$522United Airlines
Find Deal
Sat, May 24 - Thu, May 29
United Airlines Logo
6:30 am - 10:45 amSTL-DLH
4h 15m1 stop
United Airlines Logo
8:00 am - 2:47 pmDLH-STL
6h 47m1 stop
$533United Airlines
Find Deal
Thu, May 8 - Mon, May 12

KAYAK's insights & trends for St. Louis to Duluth flights

Get data-powered insights and trends into flights from St. Louis to Duluth to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from St. Louis to Duluth?

The average price of all round-trip flights from St. Louis to Duluth clicked on KAYAK for each day over the last 12 months.
For St. Louis to Duluth, Tuesday is the cheapest day to fly on average and Monday is the most expensive. Flying from Duluth back to St. Louis, the best deals are generally found on Wednesday, with Tuesday being the most expensive.

What is the cheapest month to fly from St. Louis to Duluth?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from St. Louis to Duluth, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from St. Louis to Duluth is January, where tickets cost $278 (return) on average. On the other hand, the most expensive months are November and June, where the average cost of round-trip tickets is $658 and $543 respectively.

Good to know

Low season

March

High season

August

Cheapest flight

$234
Best time to beat the crowds with an average 15% drop in price.
Most popular time to fly and prices are also 8% lower on average.
Flight from St. Louis to Duluth

When to book flights from St. Louis to Duluth

Are your dates flexible? Find out the best times to travel from St. Louis to Duluth based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from St. Louis to Duluth

  • What is the cheapest flight from St. Louis to Duluth?

    In the last 3 days, the lowest price for a flight from St. Louis to Duluth was $234 for a one-way ticket and $258 for a round-trip.

  • Do I need a passport to fly between St. Louis and Duluth?

    A passport is not required to fly from St. Louis to Duluth.

  • Which aircraft models fly most regularly from St. Louis to Duluth?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from St. Louis to Duluth?

    SkyTeam, and Star Alliance are the airline alliances operating flights between St. Louis and Duluth, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from St. Louis to Duluth, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from St. Louis to Duluth are Delta and United Airlines. With an average price for the route of $318 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $581 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from St. Louis to Duluth?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from St. Louis to Duluth.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to Duluth?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Duluth from St. Louis is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from St. Louis to Duluth?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Duluth with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and DLH can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to Duluth?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Duluth from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top airlines flying from St. Louis to Duluth

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Duluth. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from St. Louis to Duluth? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
DeltaOverall score based on 7919 reviews
7.9Comfort
8.5Crew
7.9Entertainment
8.2Boarding
7.3Food
Airline reviews

Delta is a premier airline so my expectations are most always met.

10.0 ExcellentGreg, Mar 2025PHX - MSP
Read more Delta reviews

Delta is a premier airline so my expectations are most always met.

Everything was good except when we're on a 6 hour flight at dinner time and all they offer as part of the fare are little bags of junk food, it's disappointing. Bring back food service without an added price.

Left on time and arrived early this extending our 31 minute transfer. Bags made it also!

I actually received a notification from kayak on email but not one by text from Delta when my departure gait changed and I almost missed my flight

New boarding doesn't make sense. Filling front first is slow.

Nothing unusual. It was fine. I hate having to pay extra for my seat.

The flight was so late that I had to change connecting flights, turning a five-hour trip into a fourteen-hour nightmare.

My flight consistently said it was on time and the plane didn’t arrive until after 30 minutes after take off and nothing was announced to passengers

The fight was about 2 1/2 hours delayed, but that was weather related. The flight was also overbooked. But we were in Comfort plus so the flight was fine for us.

It was pretty good I was worried with the short Layover that I might not catch my connection but the gate was there

Multiple delays and not straight answer from the United team

Stewardess spilled orange juice on my clothes/seat no help no apology just threw napkins at me to clean the mess up. Not Happy.

Smooth flight. Boarding was chaotic. Could not hear the gate agent over the intercom. People were lined up in the wrong lines. Groups one and two were told to board through line one and group 3 through line 2. All very confusing. Once in the air, the flight was smooth. There was no entertainment option on this aircraft, even though it was a larger aircraft.

The plane pushed back from the gate on time. However, it stopped on the ramp, and we waited for over 20 minutes before the aircraft pulled back to the gate. Apparently, something of importance had to be removed from the aircraft by the gate agent. I found this to be odd. The delay was not significant, but I felt that whatever was on the aircraft that had to be taken off, should’ve been done before we pushed back from the gate.

Electric plugs didn't work. Entertainment system wasn't working

The design of the light switch on the arm rest is ridiculous.

Smooth boarding process. Early departure, smooth flight, early arrival. The entertainment package has very good recent movie options. The flight crew were friendly and professional.

leg space better than expected. two washrooms for one plane isn't enough.

The gate attendant let me walk right by her with a bag too big for the overhead compartment

I just got back from a trip with 3 flights each way. The flights were good and we were happy with out experience. There was one steward on our first flight that was harsh and grump with passengers. It did not leave a good impression. All of the other flight crews were great on the other five flights.

Everything you need to know for your flight from St. Louis to Duluth

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