STL - DLH

$226 Find Cheap Flights from St. Louis to Duluth

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Duluth departing on 9/9. 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
1 adult, Economy, 0 bags

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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Everything you should know

Cheapest round-trip
$226
Delta
Wed 9/9Tue 9/15
STL - DLH • 1 stop
Cheapest one-way
$273
Delta
Fri 9/4
STL - DLH • 1 stop
Top airlines
Cheapest • from $226 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between St. Louis and Duluth. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $359 (round-trip)
Shortest trip • 4h 20m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 100% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Duluth!
Flight Deals
Booking Insights
Flight Deals

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

 
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.
Discover the best prices for you by selecting your travel dates on KAYAK.

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

Wed, Sep 9 - Tue, Sep 15
Delta Logo
6:30 am - 10:57 am
STL
-
DLH
4h 27m
1 stop
Delta Logo
5:10 am - 8:40 am
DLH
-
STL
3h 30m
1 stop
$226Delta
Fri, Sep 4 - Tue, Sep 8
United Airlines Logo
5:32 pm - 9:57 pm
STL
-
DLH
4h 25m
1 stop
United Airlines Logo
5:00 am - 12:13 pm
DLH
-
STL
7h 13m
1 stop
$317United Airlines
Fri, Jun 5 - Sun, Jun 7
Delta Logo
6:21 am - 12:04 pm
STL
-
DLH
5h 43m
1 stop
Delta Logo
5:05 am - 8:42 am
DLH
-
STL
3h 37m
1 stop
$318Delta
Fri, May 8 - Tue, May 12
Delta Logo
6:21 am - 12:04 pm
STL
-
DLH
5h 43m
1 stop
Delta Logo
12:46 pm - 4:46 pm
DLH
-
STL
4h 00m
1 stop
$358Delta
Fri, May 22 - Mon, May 25
Delta Logo
6:21 am - 12:04 pm
STL
-
DLH
5h 43m
1 stop
Delta Logo
5:15 am - 10:32 am
DLH
-
STL
5h 17m
1 stop
$374Delta
Wed, Jul 1 - Sun, Jul 5
Delta Logo
5:36 pm - 10:50 pm
STL
-
DLH
5h 14m
1 stop
Delta Logo
5:00 am - 8:42 am
DLH
-
STL
3h 42m
1 stop
$378Delta
Fri, Aug 21 - Sun, Aug 30
Delta Logo
6:30 am - 10:57 am
STL
-
DLH
4h 27m
1 stop
Delta Logo
5:10 am - 8:40 am
DLH
-
STL
3h 30m
1 stop
$393Delta
Fri, Jun 12 - Mon, Jun 15
United Airlines Logo
5:41 pm - 9:46 pm
STL
-
DLH
4h 05m
1 stop
United Airlines Logo
3:03 pm - 9:16 pm
DLH
-
STL
6h 13m
1 stop
$403United Airlines
Wed, Jul 1 - Sun, Jul 5
Delta Logo
5:42 pm - 10:50 pm
STL
-
DLH
5h 08m
1 stop
Delta Logo
5:05 am - 8:42 am
DLH
-
STL
3h 37m
1 stop
$413Delta
Thu, May 21 - Mon, May 25
Delta Logo
6:21 am - 12:04 pm
STL
-
DLH
5h 43m
1 stop
Delta Logo
7:58 am - 2:31 pm
DLH
-
STL
6h 33m
1 stop
$424Delta
Booking Insights

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.

How much is a round-trip flight from St. Louis to Duluth?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from St. Louis to Duluth departing in September.

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 December, where tickets cost $0 (return) on average. On the other hand, the most expensive months are July and January, where the average cost of round-trip tickets is $480 and $455 respectively.

Good to know

Low seasonApril
Cheapest flight$226
Best time to beat the crowds with an average 38% drop in price.
Most popular time to fly with an average 12% increase in price.
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 $273 for a one-way ticket and $226 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 is the only airline alliance operating flights between St. Louis and Duluth.

  • 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.

Reviews of the top airline 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.
7.9
DeltaOverall score based on 8467 reviews
7.2Food
8.5Crew
8.1Boarding
7.8Entertainment
7.9Comfort
Airline reviews

Round trip flight to Canada and back to the US was smooth and efficient.

8.0 ExcellentBrent, Apr 2026
YWG - MSP
Read more Delta reviews

Round trip flight to Canada and back to the US was smooth and efficient.

I am writing to express my dissatisfaction with the poor service and unprofessional staff we encountered when traveling with an infant. Our flight was delayed, and the gate staff failed to manage the boarding process appropriately. Due to incorrect, unavailable, or missing 'pink tag' stroller and car seat check-in procedures at the gate, we were forced to board last. Furthermore, the gate staff was rude and dismissive, causing significant distress to our infant. To make matters worse, one of our checked items—an infant sleeper/lounger—was returned to us broken. Given the unsafe handling of essential equipment and unprofessional treatment, I expect a prompt resolution regarding compensation for the damaged items.

My seatback screen didn’t work so that sucked because that’s what I was going to do on the plane.

An awesome flight crew. FC seat cushion just doesn’t cut it for a 3+ hour flight.

The staff was frielndly. The plane was terrible, it was too small and should be decommissioned. There were no back seat screens at all. The only beverages we had a choice from was coffee, tea or water. The only bathroom in the back was behind the flight attendant's jump seat and wasn't working. And I literally felt like I was sitting on top of the guy next to me. It was terribly hot in the plane and we had to sit on the tarmac in Chicago for 1/2 hour due to congestion in Mpls. Wouldn't they have know that before they even boarded us so that we could have sat in comfort in the terminal?

Delta has too many delays now days. It is 1:06 am now. I was supposed to land in Norfolk at 10:30 pm. I got re-booked through Detroit and I’m still in Detroit. I hope to be landed in Norfolk by 3am. I’ve been in airports for 12 hours as of right now. There is a weather delay now but most delays lately have been maintenance.

This is the first time I've been disappointed with Delta. I was called by Delta to see if I would volunteer to change flights since my original flight home was overbooked. I accepted. The modified booking only provided me a 35 minute layover - when you subtract the fact that boarding closes for a flight 15 minutes early, that gave me 20 minutes to run for one end of the airport to the other. I barely made it. On the 2.5 hour flight to Tampa, the crew repeatedly let us know over the intercom that they cannot serve drinks or snacks due to safety/turbulence. I would have accepted this reason if they did not CONTINUALLY SERVE DRINKS AND COOKED FOOD to First class. If safety is the excuse then the entire plane should be strapped in for safety. On top of this the air conditioning vents were not working correctly and the plane was uncomfortably warm. I love Delta and am a loyal Delta traveler, and I have never had an experience like this. I don't know if there's a disconnect between availability among third-party sites like KAYAK and the airlines or what, but when overbooking causes issues like this for travelers it should be reviewed and changes to the booking process should be made. I blame BOTH KAYAK and Delta for this terrible experience.

was sitting in the jet bridge for 10 minutes in -20 degree weather waiting for my bag

Probably not the fault of Delta but there was delay after delay after delay and I ended up getting home 4 hours later then I should have at 1:30 in the morning

The gate attendants and the crew were terrible. Because of high winds, they needed to carry more fuel, so they had to get volunteers to take the next flight at 6 am the next day. They did a terrible job of it - our flight ended up taking off just under 3 hours of the scheduled time. I hope to never fly Delta again.

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

Information on your arrival and departure airports